5999( 11) - 02/06/96 10:48 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 5999 Version: 11 Check-in Date: 06-Feb-1996 10:30:19 1.Proposal Title: The Nuclear Structure of S0 Galaxies: A PC Imaging Survey ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle Galaxies & Clusters SNAP 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Andrew C. Phillips Lick Observatory CoI: Marijn Franx Kapteyn Astronomical Institute N CoI: Garth Illingworth Lick Observatory N CoI: John MacKenty STScI Y ------------------------------------------------------------------------------------ 6. Abstract S0 galaxies as a class have received little attention and yet many fundamental questions remain concerning their nature. Their central regions are poorly understood because of limited resolution from ground-based observations, and yet these regions may contain vital clues about the nature and evolution of S0s and their relationship to spiral and elliptical galaxies. Interpretation of spectroscopic data in particular has been hampered by uncertainties about the light distribution at small radii. We propose a SNAPSHOT PC imaging survey of the cores of 40 nearby E/S0, S0 and S0/a galaxies, selected to cover a large range in luminosity. The goal of this project is to characterize the nuclei of such galaxies over a broad range of luminosities and within a variety of environments (field, Virgo and Fornax). These data will provide both qualitative and quantitative information on nuclear profiles and the presence of nuclear cusps, young and old stellar condensations, inner stellar disks and dust distribution in the central regions of these enigmatic galaxies. We will compare these properties to those of ellipticals and spiral galaxies, which have been well- studied with HST. These data will provide a first step towards establishing the frequency or ubiquity of black holes in the centers of disk galaxies. There is a significant possibility of discovery of unusual features that will merit follow-up study by the community. ------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 2] Observations Description ------------------------ This project is a survey of nuclei of nearby S0 galaxies. We wish to obtain the surface brightness profile of the nucleus and to identify unusual nuclear condensations (e.g., star forming clumps), nuclear point sources, compact stellar or gaseous disks and bars, and dust lanes on subarcsecond scales. In these early-type galaxies, the central surface brightnesses are high and so relatively short exposures (~100s) are adequate. We ask for two well- calibrated, high-throughput passbands (F814W and F555W) in order to clearly differentiate dust from stellar features and to identify active star-forming regions. We have based our observing strategy on experience from the \\#GO5446 program. Observations will be made in SNAPSHOT mode using the PC. Exposure times totalling 320 sec (F814W) and 160 sec (F555W) are requested. Scaling from values in the WFPC-2 Instrument Handbook shows that the F814W exposures should give the same (adequate) S/N as in the \\#GO5446 program's F606W images. We wish to CR-split the F814W exposures to insure cosmic ray events are not mistaken for real features. The exposure time in F555W should give roughly half the S/N, but since this image is to be used primarily in an interpretive manner the lower S/N and lack of CR-SPLIT are acceptible (the F814W images can be used to distinguish CRs from real features in this image). Instrument overheads are 5 min for the CR-SPLIT exposures and 3 min for the NO CR-SPLIT exposure, for a total of 16.0 minutes per target, including overheads. With the acquisition time of 12 min this results in a total time of 28 min, within the snapshot window. The target list was culled from the Third Reference catalog with the following constraints: S0, E/S0 or S0/a galaxy (RC2/RC3 type -3.9 to 0); B_T brighter than 14.5 and v_0<1200 km/s, augmented by a sample with B_T<12.5 and v_0 <2800 km/s. In addition, catalogs of galaxies for Fornax and Virgo were also the source of cluster galaxies for B_T<14.5. Visual inspection was used to remove galaxies with strong dust lanes. This strategy ensures that we have a good sampling of S0s in high-density as well as low density environments (cluster vs field), as well as across a broad magnitude range. Real Time Justification ----------------------- None. No supporting observations are required. However, we plan follow-up ground-based imaging of some of the galaxies to provide large-scale morphological characteristics (e.g. disk scale-lengths), as well as (ground- based) spectroscopic observations to measure velocity dispersions in morphologically interesting cases. Such observations may be carried out at Lick Observatory or the Keck telescope, to which our team has access, in addition to centers such as NOAO or La Palma or ESO. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 3] Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: __User-Comments__ ----------- End Forwarded Message, ------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 4] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC0404 Galaxy,Lenticular RA= 1H 9M 27.00S +/- 1.0", 2000 V = +250 V = 11.21+/-0.2 DEC= 35D 43' 4.0" +/- 1" 2 NGC0524 Galaxy,Lenticular RA= 1H 24M 47.80S +/- 1.0", 2000 V = V = 11.30+/-0.2 DEC= 9D 32' 21.0" +/- 1" +2609 3 NGC1332 Galaxy,Lenticular RA= 3H 26M 17.30S +/- 1.0", 2000 V = V = 11.25+/-0.2 DEC= -21D 20' 9.0" +/- 1" +1522 4 ESO358-059 Galaxy,Lenticular RA= 3H 45M 3.40S +/- 1.0", 2000 V = +909 V = 13.99+/-0.2 DEC= -35D 58' 22.0" +/- 1" 5 ESO118-034 Galaxy,Lenticular RA= 4H 40M 17.20S +/- 1.0", 2000 V = +968 V = 13.52+/-0.2 DEC= -58D 44' 47.0" +/- 1" 6 NGC2328 Galaxy,Lenticular RA= 7H 2M 36.70S +/- 1.0", 2000 V = +920 V = 12.75+/-0.2 DEC= -42D 4' 9.0" +/- 1" 7 NGC2902 Galaxy,Lenticular RA= 9H 30M 53.00S +/- 1.0", 2000 V = V = 12.21+/-0.2 DEC= -14D 44' 10.0" +/- 1" +1801 8 NGC3056 Galaxy,Lenticular RA= 9H 54M 33.00S +/- 1.0", 2000 V = +740 V = 12.57+/-0.2 DEC= -28D 17' 49.0" +/- 1" 9 MCG126021 Galaxy,Lenticular RA= 10H 5M 41.70S +/- 1.0", 2000 V = +497 V = 13.20+/-0.2 DEC= -7D 58' 53.0" +/- 1" 10 NGC3489 Galaxy,Lenticular RA= 11H 0M 18.20S +/- 1.0", 2000 V = +564 V = 11.12+/-0.2 DEC= 13D 54' 8.0" +/- 1" 11 NGC3599 Galaxy,Lenticular RA= 11H 15M 27.0S +/- 1.0", DEC= 2000 V = +677 V = 12.82+/-0.2 18D 6' 40.0" +/- 1" 12 NGC3607 Galaxy,Lenticular RA= 11H 16M 54.10S +/- 1.0", 2000 V = +831 V = 10.82+/-0.2 DEC= 18D 3' 12.0" +/- 1" 13 NGC3870 Galaxy,Lenticular RA= 11H 45M 56.10S +/- 1.0", 2000 V = +726 V = 13.50+/-0.2 DEC= 50D 12' 3.0" +/- 1" 14 NGC3156 Galaxy,Lenticular RA= 10H 12M 41.3S +/- 1.0", DEC= 2000 V = V = 11.61+/-0.2 03D 07' 45.3" +/- 1" +1163 15 NGC4150 Galaxy,Lenticular RA= 12H 10M 33.50S +/- 1.0", 2000 V = +212 V = 12.44+/-0.2 DEC= 30D 24' 6.0" +/- 1" 16 NGC4203 Galaxy,Lenticular RA= 12H 15M 5.30S +/- 1.0", 2000 V = V = 11.80+/-0.2 DEC= 33D 11' 53.0" +/- 1" +1028 17 NGC5102 Galaxy,Lenticular RA= 13H 21M 57.80S +/- 1.0", 2000 V = +249 V = 10.35+/-0.2 DEC= -36D 37' 47.0" +/- 1" 18 NGC2768 Galaxy,Lenticular RA= 09H 11M 34.5S +/- 1.0", 2000 V = V = 12.44+/-0.2 DEC= 60D 02' 42.3" +/- 1" +1082 19 NGC5838 Galaxy,Lenticular RA= 15H 5M 26.60S +/- 1.0", 2000 V = V = 11.92+/-0.2 DEC= 2D 6' 1.0" +/- 1" +1287 20 NGC6703 Galaxy,Lenticular RA= 18H 47M 19.00S +/- 1.0", 2000 V = V = 12.32+/-0.2 DEC= 45D 33' 3.0" +/- 1" +2603 21 NGC6861 Galaxy,Lenticular RA= 20H 7M 19.20S +/- 1.0", 2000 V = V = 12.12+/-0.2 DEC= -48D 22' 12.0" +/- 1" +2695 22 NGC0474 Galaxy,Lenticular RA= 1H 20M 6.80S +/- 1.0", 2000 V = V = 12.37+/-0.2 DEC= 3D 25' 0.0" +/- 1" +2481 23 NGC3414 Galaxy,Lenticular RA= 10H 51M 16.30S +/- 1.0", 2000 V = V = 11.96+/-0.2 DEC= 27D 58' 33.0" +/- 1" +1380 24 IC1919 Galaxy,Lenticular RA= 3H 24M 2.00S +/- 1.0", 1950 V = V = 13.50+/-0.2 DEC= -33D 4' 6.0" +/- 1" +1486 25 NGC1375 Galaxy,Lenticular RA= 3H 33M 21.00S +/- 1.0", 1950 V = V = 13.60+/-0.2 DEC= -35D 25' 48.0" +/- 1" +1486 26 NGC1389 Galaxy,Lenticular RA= 3H 35M 17.00S +/- 1.0", 1950 V = V = 12.80+/-0.2 DEC= -35D 54' 30.0" +/- 1" +1486 5999( 11) - 02/06/96 10:48 - [ 5] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 27 NGC1400 Galaxy,Lenticular RA= 3H 37M 16.00S +/- 1.0", 1950 V = +536 V = 12.10+/-0.2 DEC= -18D 51' 0.0" +/- 1" 28 NGC1553 Galaxy,Lenticular RA= 4H 15M 5.00S +/- 1.0", 1950 V = V = 10.40+/-0.2 DEC= -55D 54' 12.0" +/- 1" +1055 29 NGC1581 Galaxy,Lenticular RA= 4H 23M 38.40S +/- 1.0", 1950 V = V = 13.50+/-0.2 DEC= -55D 3' 8.0" +/- 1" +1341 30 IC3065 Galaxy,Lenticular RA= 12H 12M 39.60S +/- 1.0", 1950 V = V = 14.40+/-0.2 DEC= 14D 42' 48.0" +/- 1" +1026 31 VCC165 Galaxy,Lenticular RA= 12H 13M 20.40S +/- 1.0", 1950 V = V = 14.87+/-0.2 DEC= 13D 29' 42.0" +/- 1" +1026 32 IC3131 Galaxy,Lenticular RA= 12H 16M 18.00S +/- 1.0", 1950 V = V = 14.30+/-0.2 DEC= 8D 8' 18.0" +/- 1" +1026 33 IC3303 Galaxy,Lenticular RA= 12H 22M 42.60S +/- 1.0", 1950 V = V = 14.46+/-0.2 DEC= 12D 59' 30.0" +/- 1" +1026 34 NGC4379 Galaxy,Lenticular RA= 12H 22M 43.20S +/- 1.0", 1950 V = V = 12.30+/-0.2 DEC= 15D 53' 0.0" +/- 1" +1026 35 NGC1201 Galaxy,Lenticular RA= 03H 04M 08.0S +/- 1.0", DEC= 2000 V = V = 11.7+/-0.2 -26D 04' 08.0" +/- 1" +1682 36 NGC4431 Galaxy,Lenticular RA= 12H 24M 55.20S +/- 1.0", 1950 V = V = 13.72+/-0.2 DEC= 12D 34' 6.0" +/- 1" +1026 37 NGC4459 Galaxy,Lenticular RA= 12H 26M 28.30S +/- 1.0", 1950 V = V = 11.49+/-0.2 DEC= 14D 15' 18.0" +/- 1" +1026 38 IC3540 Galaxy,Lenticular RA= 12H 32M 55.70S +/- 1.0", 1950 V = V = 14.14+/-0.2 DEC= 13D 1' 32.0" +/- 1" +1026 39 NGC4452 Galaxy,Lenticular RA= 12H 28M 44.00S +/- 1.0", 2000 V = V = 9.83+/-0.2 DEC= 11D 45' 23.0" +/- 1" +1026 40 NGC4762 Galaxy,Lenticular RA= 12H 50M 25.20S +/- 1.0", 1950 V = V = 11.26+/-0.2 DEC= 11D 30' 6.0" +/- 1" +1026 5999( 11) - 02/06/96 10:48 - [ 6] Visit: 01 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC0404 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC0404 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 7] Visit: 02 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC0524 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC0524 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 8] Visit: 03 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC1332 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1332 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 9] Visit: 04 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ESO358-059 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 ESO358-059 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 10] Visit: 05 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ESO118-034 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 ESO118-034 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 11] Visit: 06 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC2328 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC2328 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 12] Visit: 07 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC2902 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC2902 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 13] Visit: 08 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3056 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3056 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 14] Visit: 09 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 MCG126021 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 MCG126021 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 15] Visit: 10 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3489 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 200S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3489 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 100S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 16] Visit: 11 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3599 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3599 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 17] Visit: 12 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3607 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3607 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 18] Visit: 13 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3870 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3870 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 19] Visit: 14 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3156 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3156 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 20] Visit: 15 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4150 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4150 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 21] Visit: 16 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4203 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4203 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 22] Visit: 17 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5102 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5102 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 23] Visit: 18 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC2768 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC2768 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 24] Visit: 19 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5838 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5838 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 25] Visit: 20 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6703 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6703 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 26] Visit: 21 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6861 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6861 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 27] Visit: 22 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC0474 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC0474 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 28] Visit: 23 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3414 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3414 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 29] Visit: 24 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 IC1919 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 IC1919 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 30] Visit: 25 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC1375 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1375 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 31] Visit: 26 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC1389 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1389 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 32] Visit: 27 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC1400 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1400 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 33] Visit: 28 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC1553 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1553 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 34] Visit: 29 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC1581 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1581 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 35] Visit: 30 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 IC3065 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 IC3065 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 36] Visit: 31 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 VCC165 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 VCC165 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 37] Visit: 32 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 IC3131 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 IC3131 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 38] Visit: 33 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 IC3303 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 IC3303 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 39] Visit: 34 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4379 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4379 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 40] Visit: 35 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC1201 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1201 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 41] Visit: 36 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4431 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4431 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 42] Visit: 37 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4459 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4459 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 43] Visit: 38 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 IC3540 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 IC3540 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 44] Visit: 39 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4452 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4452 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 45] Visit: 40 Visit Requirements: PCS Mode F On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4762 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5,CR 1 320S -TOLERANCE=0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4762 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 160S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5999( 11) - 02/06/96 10:48 - [ 46] Summary Form for Proposal 5999 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=0.5 CR-TOLERANCE=0.0 CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category SNAP ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category Galaxies & Clusters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS Mode F SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F814W F555W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC0404 NGC0524 NGC1332 ESO358-059 ESO118-034 NGC2328 NGC2902 NGC3056 MCG126021 NGC3489 NGC3599 NGC3607 NGC3870 NGC3156 NGC4150 NGC4203 NGC5102 NGC2768 NGC5838 NGC6703 NGC6861 NGC0474 NGC3414 IC1919 NGC1375 NGC1389 NGC1400 NGC1553 NGC1581 IC3065 VCC165 IC3131 IC3303 NGC4379 NGC1201 NGC4431 NGC4459 IC3540 NGC4452 NGC4762 ------------------------------------------------------------------------------------------------------------------------------------