5940( 19) - 12/04/96 13:17 - [ 0] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 5940 Version: 19 Check-in Date: 04-Dec-1996 13:04:30 1.Proposal Title: The Origin of the Alignment Effect: Imaging polarimetry of two z~1 radio galaxies ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle AGN GO 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Wil van Breugel INSTITUTE OF GEOPHYSICS AND PLANETARY PHYSICS CoI: Arjun Dey National Optical Astronomy Observatories / Y Kitt Peak National Observatory CoI: Hyron Spinrad University of California, Berkeley N CoI: Mark Dickinson Space Telescope Science Institute, N Baltimore CoI: Robert Antonucci University of California, Santa Barbara N ------------------------------------------------------------------------------------ 6. Abstract We propose to employ the unique imaging capabilities of HST to obtain high spatial resolution WFPC2 polarization images of the high redshift radio galaxy 3C324. These polarimetric observations are crucial to the understanding of the spectacular morphologies recently discovered in high redshift radio galaxies by HST. The galaxy selected for our study is known to have highly polarized restframe UV continuum emission from ground-based observations. Cycle 4 HST PC observations of 3C324 (z=1.206) have discovered underlinenumerous high surface brightness clumps on underline~0"per1 (sub-kpc distributed in a roughly linear structure along the radio source major axis. The goal of this proposal is to study the distribution of the polarized light and infer the physical properties and detailed spatial structure of the scattering medium in this galaxy. These observations will provide a strong test of the radio galaxy -- quasar AGN unification model and the scattering hypothesis for the alignment effect seen in high redshift radio galaxies. ------------------------------------------------------------------------------------ Observations Description ------------------------ The aim of this proposal is to study the rest-frame near-UV continuum polarization of the z=1.2 radio galaxy 3C324 using the WFPC2+POLQ+F555W instrument configuration. We will image the target on WF2 and WF4 in two separate observing sessions, each session with the instrument in a different orientation (i.e. telescope in a different roll angle). The relative orientation angle between two observing sessions must be close to 45degrees -- this is an important requirement of our project. The two CCDs (+ polarizer quad) sample orthogonal polarization states and each observing session will allow us to construct one linear Stokes parameter. This method is a compromise between using all four WFPC2 CCDs (PC1, & WF2,3,4) to cover a range of four well separated polarization angles (0degrees, 45degrees, 90degrees and 135degrees), and our desire to avoid any difficulties due to relative calibration errors, different image scales and CCD properties. To maximize our sensitivity to the polarized signal, which will mostly have a polarization position angle orthogonal to the optical major axis, we request that the orientations during the first observing sessions for 3C324 be 135degrees\\ (and 45degrees\\ different during the second session). The WFPC2+POLQ+F555W combination maximizes throughput for polarized signals with the greatest purity and at the same time avoids contamination of the continuum by strong emission lines. For 3C324, the wavelength range covered ( 2470Angstrom < lambda_rest < 3120Angstrom) is free of contamination by strong emission lines. From our Keck spectra we derive that the total contamination by all emission lines in the bandpass is <10 percent. During each visit to 3C324 we will expose for 4 orbits (~9000s) with the target centered on WF2 and then for 4 orbits with the target centered on WF4. Since we desire an accuracy of ~2\\ of 1.4\\ flux density in 3C324 is measured from Cycle 4 HST PC observations (Fig. 2) to be ~1MuJy, we require an exposure time of t_exp=9000s per angle. This exposure time allows us to detect a surface brightness of 3.4MuJy/\\sq" at 70Sigma, and a surface brightness of 0.4MuJy/\\sq" at 10Sigma in a 5x5 pixel box. We therefore request a total of 16 orbits (4x9000s). begintabularlll Cycle 5 & Primary Orbits:16 & Exposures:16 endtabular sectionParallel Observations with the FOC In order to maximize the potential of HST for serendipitous discoveries, we request parallel UV imaging observations with the FOC and the F220W filter. Although the FOV of the F/96 relay is small, our integration times will be very long and should reach interestingly faint flux limits. The faint blue galaxy population seen in deep field imaging data is numerous and we should have a reasonable chance of obtaining UV photometry and perhaps morphologies for several such objects. The cost in terms of telescope overhead is negligible and the opportunity for chance discovery using HST's unique UV capabilities is worth the additional effort. Deep Keck spectra (1 hr using the LRIS spectrograph) of 3C324 already are in hand and further polarimetric and spectroscopic observations of this radio galaxy with the Keck Telescope are planned. In addition, we intend to obtain high spatial resolution deep radio imaging observations (at 3.6cm and 2cm) using the VLA. These data will provide additional important information about the physical conditions such as electron densities and temperatures, ionization parameters, kinematics, scattering media and source, and location of the radio AGN. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: Dr. Arjun Dey, NOAO/KPNO, 950 N. Cherry Ave., PO Box 26732, Tucson, AZ 85726- 6732 Ship Via: UPS Email: dey@noao.edu , ------------------------------------------------------------------------------------ 5940( 19) - 12/04/96 13:17 - [ 1] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 3C324 GALAXY, HIGH Z GAL RA = 15H 49M 48.84S +/- 0.01S, J2000 Z = V = 22.6 DEC = 21D 25' 37.9" +/- 0.1" 1.206 2 3C324-PAR GALAXY, HIGH Z GAL RA = 15H 49M 48.84S, DEC = 21D J2000 Z = V = 22.6 25' 37.9", REGION,R=10' 1.206 Comments: Flux value is merely that for 3C324 itself. Location of FOC parallel fields is determined by the ORIENT and target position and aperture of choice for the WFPC2 primary exposures. Target description is also just taken from that of 3C324 on the assumption that there will be other high-z galaxies in the vicinity. 5940( 19) - 12/04/96 13:17 - [ 2] Visit: 01 Visit Requirements: ORIENT 135D TO 135D On Hold Comments: Additional Comments: Polarization angle is 90D on WF2 and 0D on WF4. Allowable ORIENT range is U3 ORIENT 133D TO 137D. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 101 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1000 S POSition TARGet -12, +12 POLQ SEQ 101,102 NON-INT PAR 103-104 WITH 101-102 Comments: Positioning 3c324 in optimal spot on WF2 for the polarizer quad. ------------------------------------------------------------------------------------------------------------------------------------ 102 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 101 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 103 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 900 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 104 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 105 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 101 SEQ POLQ 105,106 NON-INT PAR 107-108 WITH 105-106 ------------------------------------------------------------------------------------------------------------------------------------ 106 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 101 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 107 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 108 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 109 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1200 S POSition TARGet -12.55, POLQ +12.0 SEQ 109,110 NON-INT PAR 111-112 WITH 109-110 Comments: Dithering by dX=-0.55" from previous position ------------------------------------------------------------------------------------------------------------------------------------ 110 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1200 S SAME POSition AS 109 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 111 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 112 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 113 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 109 SEQ POLQ 113,114 NON-INT PAR 115-116 WITH 113-114 ------------------------------------------------------------------------------------------------------------------------------------ 5940( 19) - 12/04/96 13:17 - [ 3] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 114 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 109 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 115 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 116 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 117 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1000 S POSition TARGet +12, -12 POLQ SEQ 117,118 NON-INT PAR 119-120 WITH 117-118 Comments: Positioning 3c324 in optimal spot on WF4 for the polarizer quad. ------------------------------------------------------------------------------------------------------------------------------------ 118 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1000 S SAME POSition AS 117 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 119 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 900 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 120 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 121 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 117 SEQ POLQ 121,122 NON-INT PAR 123-124 WITH 121-122 ------------------------------------------------------------------------------------------------------------------------------------ 122 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 117 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 123 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 124 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 125 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1200 S POSition TARGet +12.55, POLQ -12.0 SEQ 125,126 NON-INT PAR 127-128 WITH 125-126 Comments: Dithering by dX=+0.55" from previous position ------------------------------------------------------------------------------------------------------------------------------------ 126 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1200 S SAME POSition AS 125 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 127 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 128 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 5940( 19) - 12/04/96 13:17 - [ 4] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 129 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1200 S SAME POSition AS 125 SEQ POLQ 129,130 NON-INT PAR 131-132 WITH 129-130 ------------------------------------------------------------------------------------------------------------------------------------ 130 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1200 S SAME POSition AS 125 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 131 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 132 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 5940( 19) - 12/04/96 13:17 - [ 5] Visit: 02 Visit Requirements: ORIENT 88D TO 88D On Hold Comments: Additional Comments: Polarization Angle = 45D on WF2 and 135D on WF4 Allowable U3 ORIENT range is 88D TO 92D. 88D was picked on the basis of GS search in flight database. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 201 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1000 S POSition TARGet -12, +12 POLQ SEQ 201,202 NON-INT PAR 203-204 WITH 201-202 Comments: Positioning 3c324 in optimal spot on WF2 for the polarizer quad. ------------------------------------------------------------------------------------------------------------------------------------ 202 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 201 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 203 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 900 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 204 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 205 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 201 SEQ POLQ 205,206 NON-INT PAR 207-208 WITH 205-206 ------------------------------------------------------------------------------------------------------------------------------------ 206 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 201 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 207 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 208 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 209 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1200 S POSition TARGet -12.55, POLQ +12.0 SEQ 209,210 NON-INT PAR 211-212 WITH 209-210 Comments: Dithering by dX=-0.55" from previous position ------------------------------------------------------------------------------------------------------------------------------------ 210 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1200 S SAME POSition AS 209 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 211 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 212 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 213 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 209 SEQ POLQ 213,214 NON-INT PAR 215-216 WITH 213-214 ------------------------------------------------------------------------------------------------------------------------------------ 5940( 19) - 12/04/96 13:17 - [ 6] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 214 3C324 WFPC2 IMAGE WF2 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 209 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 215 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 216 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 217 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1000 S POSition TARGet +12, -12 POLQ SEQ 217,218 NON-INT PAR 219-220 WITH 217-218 Comments: Positioning 3c324 in optimal spot on WF4 for the polarizer quad. ------------------------------------------------------------------------------------------------------------------------------------ 218 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 217 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 219 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 900 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 220 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 221 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 217 SEQ POLQ 221,222 NON-INT PAR 223-224 WITH 221-222 ------------------------------------------------------------------------------------------------------------------------------------ 222 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1100 S SAME POSition AS 217 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 223 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 224 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 225 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1200 S POSition TARGet +12.55, POLQ -12.0 SEQ 225,226 NON-INT PAR 227-228 WITH 225-226 Comments: Dithering by dX=+0.55" from previous position ------------------------------------------------------------------------------------------------------------------------------------ 226 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1200 S SAME POSition AS 225 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 227 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 228 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 5940( 19) - 12/04/96 13:17 - [ 7] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 229 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1200 S SAME POSition AS 225 SEQ POLQ 229,230 NON-INT PAR 231-232 WITH 229-230 ------------------------------------------------------------------------------------------------------------------------------------ 230 3C324 WFPC2 IMAGE WF4 F555W, CR-SPLIT=NO 1 1200 S SAME POSition AS 225 POLQ ------------------------------------------------------------------------------------------------------------------------------------ 231 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 232 3C324-PAR FOC/96 IMAGE 512X102 F430W PIXEL=50X25 1 1100 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 5940( 19) - 12/04/96 13:17 - [ 8] Summary Form for Proposal 5940 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 FOC/96 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO PIXEL=50X25 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category AGN ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 135D TO 135D POSition TARGet -12, +12 SEQ 101,102 NON-INT PAR 103-104 WITH 101-102 SAME POSition AS 101 SAME POSition AS 101 SEQ 105,106 NON-INT PAR 107-108 WITH 105-106 POSition TARGet -12.55, +12.0 SEQ 109,110 NON-INT PAR 111-112 WITH 109-110 SAME POSition AS 109 SAME POSition AS 109 SEQ 113,114 NON-INT PAR 115-116 WITH 113-114 POSition TARGet +12, -12 SEQ 117,118 NON-INT PAR 119-120 WITH 117-118 SAME POSition AS 117 SAME POSition AS 117 SEQ 121,122 NON-INT PAR 123-124 WITH 121-122 POSition TARGet +12.55, -12.0 SEQ 125,126 NON-INT PAR 127-128 WITH 125-126 SAME POSition AS 125 SAME POSition AS 125 SEQ 129,130 NON-INT PAR 131-132 WITH 129-130 ORIENT 88D TO 88D POSition TARGet -12, +12 SEQ 201,202 NON-INT PAR 203-204 WITH 201-202 SAME POSition AS 201 SAME POSition AS 201 SEQ 205,206 NON-INT PAR 207-208 WITH 205-206 POSition TARGet -12.55, +12.0 SEQ 209,210 NON-INT PAR 211-212 WITH 209-210 SAME POSition AS 209 SAME POSition AS 209 SEQ 213,214 NON-INT PAR 215-216 WITH 213-214 POSition TARGet +12, -12 SEQ 217,218 NON-INT PAR 219-220 WITH 217-218 SAME POSition AS 217 SAME POSition AS 217 SEQ 221,222 NON-INT PAR 223-224 WITH 221-222 POSition TARGet +12.55, -12.0 SEQ 225,226 NON-INT PAR 227-228 WITH 225-226 SAME POSition AS 225 SAME POSition AS 225 SEQ 229,230 NON-INT PAR 231-232 WITH 229-230 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W,POLQ F430W ------------------------------------------------------------------------------------------------------------------------------------ Target Names 3C324 3C324-PAR ------------------------------------------------------------------------------------------------------------------------------------