! $Id: 6138,v 8.1 1994/12/29 22:54:44 pepsa Exp $ coverpage: title_1: LONG TERM STABILITY MONITORING OF FGS3 - EARLY 1995 sci_cat: N/A proposal_for: ENG/AST pi_title: PROF. pi_fname: WILLIAM pi_mi: H. pi_lname: JEFFERYS pi_inst: UNIVERSITY OF TEXAS pi_country: USA pi_phone: (512)471-1455 keywords_1: FINE GUIDANCE SENSORS, FGS, CALIBRATION, DISTORTION hours_pri: 20.00 num_pri: 10 fgs: Y pi_position: PROFESSOR ! end of coverpage abstract: line_1: The goal of these activities is to determine the optical field line_2: angle distortions of FGS units #3 to within an arbitrary line_3: scale factor, with a level of accuracy sufficient to support line_4: an overall astrometry error budget of +/- 0.0027 arcseconds rms. line_5: The actual solutions will provide the Project Data Base with line_6: the significant terms, their values, and their covariances line_7: including errors, which may then be applied to general FGS line_8: observations to reduce them for field angle distortions, line_9: except scale, alignment, and color corrections. line_11: THIS PROPOSAL ASSUMES THAT FGS#3 IS THE PRIME UNIT. ! ! end of abstract general_form_proposers: lname: JEFFERYS fname: WILLIAM title: DR. mi: H. inst: UNIVERSITY OF TEXAS country: USA ! lname: BENEDICT fname: GEORGE title: DR. mi: F. inst: UNIVERSITY OF TEXAS country: USA ! lname: DUNCOMBE fname: RAYNOR title: DR. mi: L. inst: UNIVERSITY OF TEXAS country: USA ! lname: HEMENWAY fname: PAUL title: DR. mi: D. inst: UNIVERSITY OF TEXAS country: USA ! lname: SHELUS fname: PETER title: DR. mi: S. inst: UNIVERSITY OF TEXAS country: USA ! lname: WHIPPLE fname: ARTHUR title: DR. mi: L. inst: UNIVERSITY OF TEXAS country: USA ! lname: SISYPHUS fname: I. title: DR. mi: M. inst: STONE UNIVERSITY country: CORINTH ! lname: FRANZ fname: OTTO title: DR. mi: G. inst: LOWELL OBSERVATORY country: USA ! lname: FREDRICK fname: LAURENCE title: DR. mi: W. inst: UNIVERSITY OF VIRGINIA country: USA ! lname: VAN ALTENA fname: WILLIAM title: DR. mi: F. inst: YALE UNIVERSITY country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: This calibration will provide the terms of the field distortions line_2: for FGS units #3 to allow milliarcsecond astrometry to line_3: be performed. The observations and reductions form a set of line_4: calibrations which must be performed in order for routine line_5: astrometric observations to be reduced at the milliarcsecond line_6: level. Because the nature of the long and short spatial line_7: frequencies is predicted from pre-launch measurements, but line_8: because the final in-orbit values are not known, a sufficient line_9: number of stars with selected relative positions must be line_10: chosen to adequately cover the distortions expected yet line_11: give a sample of other spatial frequencies which may occur. line_13: The requirement of an adequate number of stars between 9th line_14: and 14th magnitudes, and consideration of sun-angle roll line_15: constraints, have led to the choice of M35 as the observation line_16: field. M35 is an ecliptic field. Beginning on approximately line_17: January 10 it has near optimal visibility with regard to line_18: SSA avoidance and sun angle that will minimize the risk of line_19: guide star loss of lock. For this reason this calibration line_20: should be begun as close to January 10 as possible. M35 is also line_21: the target for the ongoing STScI focal plane stability test. ! question: 3 section: 1 line_1: Acquire guide stars in the FGS units selected for guiding. line_2: With each position and orientation of the FGS, measure 30 line_3: stars (including check stars) in the astrometry FGS with the line_4: CLEAR filter. The stars have been chosen to be line_5: well distributed about the FGS FOV. The offsets described below line_6: will move the stars about the FGS FOV, sampling the distortions line_7: at different positions. Guide stars should be changed as needed line_8: except where reacquisitions are specifically requested in line_9: exposure line comment fields. ! question: 3 section: 2 line_1: Successively offset and roll the HST relative to the first pointing, line_2: as described below. Here (x,y,d) means an offset of x arcseconds in line_3: the FGS X direction and y arcseconds in the FGS Y direction, and line_4: a roll of d degrees. The offsets are from the spring pointing of the line_5: STScI focal plane stability test and are: (+60,0,0), (0,0,0), line_6: (+30,+52,0), (-30,+52,0), (-60,0,0), (-30,-52,0), (+30,-52,0), line_7: (0,0,+30), (0,0,-25), (-189,+24,0), (-189,+24,+30), (-189,+24,-25), line_8: (+189,+24,0), (+189,+24,+30), (+189,+24,-25), (-309,+69,0), line_9: (+309,+69,0), (-420,+132,0), (+420,+132,0), (0,0,0). The last orbit line_10: is a repeat of the second to monitor secondary mirror stability. ! question: 3 section: 3 line_1: Hughes Danbury Optical Systems, Inc (HDOS) will use the derived line_2: star catalog from this calibration for use with the calibration line_3: of other FGS units for HST pointing purposes. ! question: 4 section: 1 line_1: Ground-based limits will be reached in M35 at approximately line_2: the 0.01 arcsec level. ! question: 5 section: 1 line_1: The off-nominal rolls have been chosen to meet all constraint line_2: during the spring observing period beginning on January 10. line_5: Several of the pointings also include PC parallel exposures, line_6: to monitor possible changes in the HST focus ("breathing"). line_8: Because of the critical nature of this test and the length of the line_9: observations, special measures should be taken to protect the data line_10: (eg., the data may be written to the onboard tape recorder so that line_11: they can be recovered in case of transmission errors. ! question: 5 section: 2 line_1: The observations should be scheduled to begin as soon after line_2: January 10, 1993 as possible to minimize SSA impact and line_3: the risk of guide star loss of lock. ! question: 6 section: 1 line_1: N/A ! question: 7 section: 1 line_1: Data reduction will be performed using the ADRS within the SDAS line_2: system at STScI with other reductions being performed in Austin. line_3: The data will be put into SDAS Table format for analysis using the line_4: GaussFit module. Initial values of the field distortion parameters line_6: will come from the PDB. The scale value used will also come line_7: from the PDB. The initial model will come from the line_8: physical model of the FGS. line_10: Ground calibration of the short wavelength terms will line_11: be examined for consistency with the data. The data will be line_12: insufficient to derive a complete map of the short wavelength line_13: variations. Different polynomial and/or spline approximations line_14: will be tried to determine the most appropriate representation of line_15: the data. Sufficient data should be available to give a good line_16: solution. The covariances and residuals will be examined to line_17: determine a "best fit" solution. The terms, their values, line_18: their errors, and their covariances will be entered into the line_19: Project Data Base for Standard Astrometric observations. ! question: 8 section: 1 line_1: FGS numbers refer to BAY NUMBERS. ! question: 8 section: 2 line_1: The results from this procedure, which will be line_2: resident on the Calibration Data Base, will be required for line_3: virtually every HST astrometry observation made with the FGS. line_5: The derivation of the astrometric parameters line_6: from these data for the CDB will be coordinated with line_7: HDOS. ! question: 9 section: 1 line_1: N/A ! question: 10 section: 1 line_1: GaussFit is available in Austin and at STScI. At least one line_2: Astrometry Team representative, and usually two to three, will line_3: be available at STScI or GSFC during the tests to analyze the line_4: data. ! !end of general form text general_form_address: lname: Jefferys fname: William mi: H. title: DR. category: PI inst: University of Texas addr_1: Department of Astronomy city: Austin state: TX zip: 78712 country: USA phone: (512)471-1455 telex: TEXASTRO ! lname: Whipple fname: Arthur mi: L. title: DR. category: ADV inst: University of Texas addr_1: McDonald Observatory city: Austin state: TX zip: 78712 country: USA phone: (512)471-6332 telex: TEXASTRO ! lname: van Altena fname: William mi: F. title: DR. category: CON inst: Yale University addr_1: Department of Astronomy addr_2: PO Box 6666 addr_3: 260 Whitney Avenue city: New Haven state: CT zip: 06511 country: USA phone: (203)432-3020 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: OF1-REF name_2: (GSC 9) descr_1: J,701 pos_1: RA = 92.0891708D +/- 0.5", pos_2: DEC = 24.36399D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.25 +/- 0.1 ! targnum: 2 name_1: OF2-REF name_2: (GSC 81) descr_1: J,701 pos_1: RA = 92.0224708D +/- 0.5", pos_2: DEC = 24.36284D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.51 +/- 0.1 ! targnum: 3 name_1: OF3-REF name_2: (GSC 419) descr_1: J,701 pos_1: RA = 92.1221083D +/- 0.5", pos_2: DEC = 24.34729D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.07 +/- 0.1 ! targnum: 4 name_1: OF4-REF name_2: (GSC 445) descr_1: J,701 pos_1: RA = 92.4723583D +/- 0.5", pos_2: DEC = 24.30228D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.57 +/- 0.1 ! targnum: 5 name_1: OF5-REF name_2: (GSC 457) descr_1: J,701 pos_1: RA = 92.4738792D +/- 0.5", pos_2: DEC = 24.3737D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.63 +/- 0.1 ! targnum: 6 name_1: OF6-REF name_2: (GSC 470) descr_1: J,701 pos_1: RA = 92.3577083D +/- 0.5", pos_2: DEC = 24.35866D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.29 +/- 0.1 ! targnum: 7 name_1: OF7-REF name_2: (GSC 478) descr_1: J,701 pos_1: RA = 92.2685292D +/- 0.5", pos_2: DEC = 24.36524D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.09 +/- 0.1 ! targnum: 8 name_1: OF8-REF name_2: (GSC 480) descr_1: J,701 pos_1: RA = 92.3932583D +/- 0.5", pos_2: DEC = 24.32652D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.75 +/- 0.1 ! targnum: 9 name_1: OF9-REF name_2: (GSC 489) descr_1: J,701 pos_1: RA = 92.4047708D +/- 0.5", pos_2: DEC = 24.35642D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.12 +/- 0.1 ! targnum: 10 name_1: OF10-REF name_2: (GSC 496) descr_1: J,701 pos_1: RA = 92.3268583D +/- 0.5", pos_2: DEC = 24.36833D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 9.79 +/- 0.1 ! targnum: 11 name_1: OF11-REF name_2: (GSC 509) descr_1: J,701 pos_1: RA = 92.2354792D +/- 0.5", pos_2: DEC = 24.35992D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 8.08 +/- 0.1 ! targnum: 12 name_1: OF12-REF name_2: (GSC 514) descr_1: J,701 pos_1: RA = 92.2000583D +/- 0.5", pos_2: DEC = 24.35253D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.64 +/- 0.1 ! targnum: 13 name_1: OF13-REF name_2: (GSC 520) descr_1: J,701 pos_1: RA = 92.2005708D +/- 0.5", pos_2: DEC = 24.31381D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.36 +/- 0.1 ! targnum: 14 name_1: OF14-REF name_2: (GSC 534) descr_1: J,701 pos_1: RA = 92.3559292D +/- 0.5", pos_2: DEC = 24.32507D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.67 +/- 0.1 ! targnum: 15 name_1: OF15-REF name_2: (GSC 539) descr_1: J,701 pos_1: RA = 92.1340208D +/- 0.5", pos_2: DEC = 24.35663D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.4 +/- 0.1 ! targnum: 16 name_1: OF16-REF name_2: (GSC 543) descr_1: J,701 pos_1: RA = 92.1130792D +/- 0.5", pos_2: DEC = 24.33505D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.93 +/- 0.1 ! targnum: 17 name_1: OF17-REF name_2: (GSC 554) descr_1: J,701 pos_1: RA = 92.2711D +/- 0.5", pos_2: DEC = 24.34419D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.5 +/- 0.1 ! targnum: 18 name_1: OF18-REF name_2: (GSC 564) descr_1: J,701 pos_1: RA = 92.41915D +/- 0.5", pos_2: DEC = 24.32398D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.73 +/- 0.1 ! targnum: 19 name_1: OF19-REF name_2: (GSC 572) descr_1: J,701 pos_1: RA = 92.0937417D +/- 0.5", pos_2: DEC = 24.3462D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.23 +/- 0.1 ! targnum: 20 name_1: OF20-REF name_2: (GSC 584) descr_1: J,701 pos_1: RA = 92.1199D +/- 0.5", pos_2: DEC = 24.31142D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.01 +/- 0.1 ! targnum: 21 name_1: OF21-REF name_2: (GSC 588) descr_1: J,701 pos_1: RA = 92.4095792D +/- 0.5", pos_2: DEC = 24.29824D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.92 +/- 0.1 ! targnum: 22 name_1: OF22-REF name_2: (GSC 590) descr_1: J,701 pos_1: RA = 92.3655583D +/- 0.5", pos_2: DEC = 24.30945D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.33 +/- 0.1 ! targnum: 23 name_1: OF23-REF name_2: (GSC 596) descr_1: J,701 pos_1: RA = 92.3816208D +/- 0.5", pos_2: DEC = 24.33236D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.46 +/- 0.1 ! targnum: 24 name_1: OF24-REF name_2: (GSC 603) descr_1: J,701 pos_1: RA = 92.3936292D +/- 0.5", pos_2: DEC = 24.33951D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.63 +/- 0.1 ! targnum: 25 name_1: OF25-REF name_2: (GSC 607) descr_1: J,701 pos_1: RA = 92.2256208D +/- 0.5", pos_2: DEC = 24.36929D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.87 +/- 0.1 ! targnum: 26 name_1: OF26-REF name_2: (GSC 614) descr_1: J,701 pos_1: RA = 92.1795083D +/- 0.5", pos_2: DEC = 24.31883D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.89 +/- 0.1 ! targnum: 27 name_1: OF27-REF name_2: (GSC 627) descr_1: J,701 pos_1: RA = 92.11295D +/- 0.5", pos_2: DEC = 24.32881D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.13 +/- 0.1 ! targnum: 28 name_1: OF28-REF name_2: (GSC 628) descr_1: J,701 pos_1: RA = 92.1128792D +/- 0.5", pos_2: DEC = 24.32181D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.66 +/- 0.1 ! targnum: 29 name_1: OF29-REF name_2: (GSC 629) descr_1: J,701 pos_1: RA = 92.1312583D +/- 0.5", pos_2: DEC = 24.36473D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.84 +/- 0.1 ! targnum: 30 name_1: OF30-REF name_2: (GSC 631) descr_1: J,701 pos_1: RA = 92.3362417D +/- 0.5", pos_2: DEC = 24.36922D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.69 +/- 0.1 ! targnum: 31 name_1: OF31-REF name_2: (GSC 656) descr_1: J,701 pos_1: RA = 92.3637083D +/- 0.5", pos_2: DEC = 24.36793D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.66 +/- 0.1 ! targnum: 32 name_1: OF32-REF name_2: (GSC 659) descr_1: J,701 pos_1: RA = 92.4345583D +/- 0.5", pos_2: DEC = 24.37446D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.11 +/- 0.1 ! targnum: 33 name_1: OF33-REF name_2: (GSC 662) descr_1: J,701 pos_1: RA = 92.7437417D +/- 0.5", pos_2: DEC = 23.79475D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.03 +/- 0.1 ! targnum: 34 name_1: OF34-REF name_2: (GSC 674) descr_1: J,701 pos_1: RA = 92.3211792D +/- 0.5", pos_2: DEC = 24.33804D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 9.36 +/- 0.1 ! targnum: 35 name_1: OF35-REF name_2: (GSC 679) descr_1: J,701 pos_1: RA = 92.3448292D +/- 0.5", pos_2: DEC = 24.34064D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.43 +/- 0.1 ! targnum: 36 name_1: OF36-REF name_2: (GSC 687) descr_1: J,701 pos_1: RA = 92.3359792D +/- 0.5", pos_2: DEC = 24.32104D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.85 +/- 0.1 ! targnum: 37 name_1: OF37-REF name_2: (GSC 688) descr_1: J,701 pos_1: RA = 92.2535417D +/- 0.5", pos_2: DEC = 24.3649D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 9.88 +/- 0.1 ! targnum: 38 name_1: OF38-REF name_2: (GSC 699) descr_1: J,701 pos_1: RA = 92.35615D +/- 0.5", pos_2: DEC = 24.36699D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.53 +/- 0.1 ! targnum: 39 name_1: OF39-REF name_2: (GSC 706) descr_1: J,701 pos_1: RA = 92.4551083D +/- 0.5", pos_2: DEC = 24.36976D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.75 +/- 0.1 ! targnum: 40 name_1: OF40-REF name_2: (GSC 710) descr_1: J,701 pos_1: RA = 92.2949292D +/- 0.5", pos_2: DEC = 24.35184D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.26 +/- 0.1 ! targnum: 41 name_1: OF41-REF name_2: (GSC 712) descr_1: J,701 pos_1: RA = 92.1516583D +/- 0.5", pos_2: DEC = 24.34397D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.59 +/- 0.1 ! targnum: 42 name_1: OF42-REF name_2: (GSC 714) descr_1: J,701 pos_1: RA = 92.1533708D +/- 0.5", pos_2: DEC = 24.36211D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.99 +/- 0.1 ! targnum: 43 name_1: OF43-REF name_2: (GSC 719) descr_1: J,701 pos_1: RA = 92.4081792D +/- 0.5", pos_2: DEC = 24.32464D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.04 +/- 0.1 ! targnum: 44 name_1: OF44-REF name_2: (GSC 729) descr_1: J,701 pos_1: RA = 92.2620583D +/- 0.5", pos_2: DEC = 24.36489D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.69 +/- 0.1 ! targnum: 45 name_1: OF45-REF name_2: (GSC 732) descr_1: J,701 pos_1: RA = 92.2589917D +/- 0.5", pos_2: DEC = 24.3743D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.63 +/- 0.1 ! targnum: 46 name_1: OF46-REF name_2: (GSC 737) descr_1: J,701 pos_1: RA = 92.2645083D +/- 0.5", pos_2: DEC = 24.35976D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.23 +/- 0.1 ! targnum: 47 name_1: OF47-REF name_2: (GSC 756) descr_1: J,701 pos_1: RA = 92.17085D +/- 0.5", pos_2: DEC = 24.35863D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.04 +/- 0.1 ! targnum: 48 name_1: OF48-REF name_2: (GSC 797) descr_1: J,701 pos_1: RA = 92.4568708D +/- 0.5", pos_2: DEC = 24.35911D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 9.91 +/- 0.1 ! targnum: 49 name_1: OF49-REF name_2: (GSC 798) descr_1: J,701 pos_1: RA = 92.4123708D +/- 0.5", pos_2: DEC = 24.34752D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.22 +/- 0.1 ! targnum: 50 name_1: OF50-REF name_2: (GSC 817) descr_1: J,701 pos_1: RA = 92.2151708D +/- 0.5", pos_2: DEC = 24.35715D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.91 +/- 0.1 ! targnum: 51 name_1: OF51-REF name_2: (GSC 845) descr_1: J,701 pos_1: RA = 92.2519583D +/- 0.5", pos_2: DEC = 24.40408D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.66 +/- 0.1 ! targnum: 52 name_1: OF52 name_2: (GSC 853) descr_1: J,701 pos_1: RA = 92.28235D +/- 0.5", pos_2: DEC = 24.3755D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.25 +/- 0.1 ! targnum: 53 name_1: OF53-REF name_2: (GSC 856) descr_1: J,701 pos_1: RA = 92.1123917D +/- 0.5", pos_2: DEC = 24.43257D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.52 +/- 0.1 ! targnum: 54 name_1: OF54-REF name_2: (GSC 859) descr_1: J,701 pos_1: RA = 92.4219708D +/- 0.5", pos_2: DEC = 24.4668D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.67 +/- 0.1 ! targnum: 55 name_1: OF55-REF name_2: (GSC 862) descr_1: J,701 pos_1: RA = 92.4026792D +/- 0.5", pos_2: DEC = 24.41991D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.77 +/- 0.1 ! targnum: 56 name_1: OF56-REF name_2: (GSC 868) descr_1: J,701 pos_1: RA = 92.2933083D +/- 0.5", pos_2: DEC = 24.39031D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.95 +/- 0.1 ! targnum: 57 name_1: OF57-REF name_2: (GSC 875) descr_1: J,701 pos_1: RA = 92.2886D +/- 0.5", pos_2: DEC = 24.38811D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.35 +/- 0.1 ! targnum: 58 name_1: OF58-REF name_2: (GSC 876) descr_1: J,701 pos_1: RA = 92.1330917D +/- 0.5", pos_2: DEC = 24.48645D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.73 +/- 0.1 ! targnum: 59 name_1: OF59-REF name_2: (GSC 877) descr_1: J,701 pos_1: RA = 92.1086292D +/- 0.5", pos_2: DEC = 24.40118D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12 +/- 0.1 ! targnum: 60 name_1: OF60-REF name_2: (GSC 883) descr_1: J,701 pos_1: RA = 92.1211417D +/- 0.5", pos_2: DEC = 24.40712D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.39 +/- 0.1 ! targnum: 61 name_1: OF61-REF name_2: (GSC 885) descr_1: J,701 pos_1: RA = 92.3219D +/- 0.5", pos_2: DEC = 24.42128D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.27 +/- 0.1 ! targnum: 62 name_1: OF62-REF name_2: (GSC 886) descr_1: J,701 pos_1: RA = 92.1660708D +/- 0.5", pos_2: DEC = 24.45323D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.17 +/- 0.1 ! targnum: 63 name_1: OF63-REF name_2: (GSC 894) descr_1: J,701 pos_1: RA = 92.1818D +/- 0.5", pos_2: DEC = 24.42058D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.22 +/- 0.1 ! targnum: 64 name_1: OF64-REF name_2: (GSC 897) descr_1: J,701 pos_1: RA = 92.1788208D +/- 0.5", pos_2: DEC = 24.40557D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.98 +/- 0.1 ! targnum: 65 name_1: OF65-REF name_2: (GSC 900) descr_1: J,701 pos_1: RA = 92.4146792D +/- 0.5", pos_2: DEC = 24.43122D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.24 +/- 0.1 ! targnum: 66 name_1: OF66-REF name_2: (GSC 903) descr_1: J,701 pos_1: RA = 92.3902708D +/- 0.5", pos_2: DEC = 24.47371D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.44 +/- 0.1 ! targnum: 67 name_1: OF67-REF name_2: (GSC 906) descr_1: J,701 pos_1: RA = 92.1065292D +/- 0.5", pos_2: DEC = 24.39337D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.02 +/- 0.1 ! targnum: 68 name_1: OF68-REF name_2: (GSC 911) descr_1: J,701 pos_1: RA = 92.3294708D +/- 0.5", pos_2: DEC = 24.42671D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.56 +/- 0.1 ! targnum: 69 name_1: OF69-REF name_2: (GSC 912) descr_1: J,701 pos_1: RA = 92.2719708D +/- 0.5", pos_2: DEC = 24.38762D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.35 +/- 0.1 ! targnum: 70 name_1: OF70-REF name_2: (GSC 913) descr_1: J,701 pos_1: RA = 92.38D +/- 0.5", pos_2: DEC = 24.41449D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.3 +/- 0.1 ! targnum: 71 name_1: OF71-REF name_2: (GSC 915) descr_1: J,701 pos_1: RA = 92.4082708D +/- 0.5", pos_2: DEC = 24.39285D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.48 +/- 0.1 ! targnum: 72 name_1: OF72-REF name_2: (GSC 918) descr_1: J,701 pos_1: RA = 92.3037583D +/- 0.5", pos_2: DEC = 24.40614D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10 +/- 0.1 ! targnum: 73 name_1: OF73-REF name_2: (GSC 919) descr_1: J,701 pos_1: RA = 92.20955D +/- 0.5", pos_2: DEC = 24.43418D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 9.33 +/- 0.1 ! targnum: 74 name_1: OF74-REF name_2: (GSC 932) descr_1: J,701 pos_1: RA = 92.2915208D +/- 0.5", pos_2: DEC = 24.39461D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.15 +/- 0.1 ! targnum: 75 name_1: OF75-REF name_2: (GSC 934) descr_1: J,701 pos_1: RA = 92.1938708D +/- 0.5", pos_2: DEC = 24.47244D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.48 +/- 0.1 ! targnum: 76 name_1: OF76-REF name_2: (GSC 935) descr_1: J,701 pos_1: RA = 92.3841417D +/- 0.5", pos_2: DEC = 24.39092D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.14 +/- 0.1 ! targnum: 77 name_1: OF77-REF name_2: (GSC 944) descr_1: J,701 pos_1: RA = 92.4313083D +/- 0.5", pos_2: DEC = 24.46185D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.05 +/- 0.1 ! targnum: 78 name_1: OF78-REF name_2: (GSC 946) descr_1: J,701 pos_1: RA = 92.3037208D +/- 0.5", pos_2: DEC = 24.42403D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.09 +/- 0.1 ! targnum: 79 name_1: OF79-REF name_2: (GSC 947) descr_1: J,701 pos_1: RA = 92.2328792D +/- 0.5", pos_2: DEC = 24.40258D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.05 +/- 0.1 ! targnum: 80 name_1: OF80-REF name_2: (GSC 948) descr_1: J,701 pos_1: RA = 92.1951917D +/- 0.5", pos_2: DEC = 24.39622D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.68 +/- 0.1 ! targnum: 81 name_1: OF81-REF name_2: (GSC 950) descr_1: J,701 pos_1: RA = 92.4041292D +/- 0.5", pos_2: DEC = 24.37822D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.19 +/- 0.1 ! targnum: 82 name_1: OF82-REF name_2: (GSC 951) descr_1: J,701 pos_1: RA = 92.1389417D +/- 0.5", pos_2: DEC = 24.44984D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 9.74 +/- 0.1 ! targnum: 83 name_1: OF83-REF name_2: (GSC 957) descr_1: J,701 pos_1: RA = 92.3600792D +/- 0.5", pos_2: DEC = 24.38053D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 9.47 +/- 0.1 ! targnum: 84 name_1: OF84-REF name_2: (GSC 962) descr_1: J,701 pos_1: RA = 92.3412D +/- 0.5", pos_2: DEC = 24.43649D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.92 +/- 0.1 ! targnum: 85 name_1: OF85-REF name_2: (GSC 963) descr_1: J,701 pos_1: RA = 92.3508083D +/- 0.5", pos_2: DEC = 24.42428D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.3 +/- 0.1 ! targnum: 86 name_1: OF86-REF name_2: (GSC 964) descr_1: J,701 pos_1: RA = 92.2406792D +/- 0.5", pos_2: DEC = 24.39599D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 10.47 +/- 0.1 ! targnum: 87 name_1: OF87-REF name_2: (GSC 965) descr_1: J,701 pos_1: RA = 92.5598292D +/- 0.5", pos_2: DEC = 24.37938D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.18 +/- 0.1 ! targnum: 88 name_1: OF88-REF name_2: (GSC 967) descr_1: J,701 pos_1: RA = 92.16635D +/- 0.5", pos_2: DEC = 24.40138D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 9.91 +/- 0.1 ! targnum: 89 name_1: OF89-REF name_2: (GSC 972) descr_1: J,701 pos_1: RA = 92.1721D +/- 0.5", pos_2: DEC = 24.44318D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.64 +/- 0.1 ! targnum: 90 name_1: OF90-REF name_2: (GSC 975) descr_1: J,701 pos_1: RA = 92.2224917D +/- 0.5", pos_2: DEC = 24.38458D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.85 +/- 0.1 ! targnum: 91 name_1: OF91-REF name_2: (GSC 978) descr_1: J,701 pos_1: RA = 92.2045583D +/- 0.5", pos_2: DEC = 24.42583D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.54 +/- 0.1 ! targnum: 92 name_1: OF92-REF name_2: (GSC 980) descr_1: J,701 pos_1: RA = 92.3356917D +/- 0.5", pos_2: DEC = 24.39332D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.05 +/- 0.1 ! targnum: 93 name_1: OF93-REF name_2: (GSC 983) descr_1: J,701 pos_1: RA = 92.3568208D +/- 0.5", pos_2: DEC = 24.40572D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.43 +/- 0.1 ! targnum: 94 name_1: OF94-REF name_2: (GSC 985) descr_1: J,701 pos_1: RA = 92.1674083D +/- 0.5", pos_2: DEC = 24.37511D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 12.27 +/- 0.1 ! targnum: 95 name_1: OF95-REF name_2: (GSC 989) descr_1: J,701 pos_1: RA = 92.37225D +/- 0.5", pos_2: DEC = 24.3994D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 13.35 +/- 0.1 ! targnum: 104 name_1: OF104-REF name_2: (GSSC 974) descr_1: J,701 pos_1: RA = 92.2859583D +/- 0.5", pos_2: DEC = 24.57642D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.61 +/- 0.5 ! targnum: 106 name_1: POINTING2 descr_1: J,707 pos_1: RA = 6H 9M 9.372S +/- 0.5", pos_2: DEC = 24D 34' 51.131" +/- 0.5" equinox: 2000 comment_1: DUMMY POINTING FOR comment_2: ORBITS 2 AND 20 ! targnum: 108 name_1: OF108-REF name_2: (GSSC 713) descr_1: J,701 pos_1: RA = 92.403700D +/- 0.5", pos_2: DEC = 24.545580D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.74 +/- 0.5 ! targnum: 110 name_1: OF110-REF name_2: (GSSC 705) descr_1: J,701 pos_1: RA = 92.3338300D +/- 0.5", pos_2: DEC = 24.5803400D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 8.55 +/- 0.5 ! targnum: 111 name_1: OF111-REF name_2: (GSSC 816) descr_1: J,701 pos_1: RA = 92.4357300D +/- 0.5", pos_2: DEC = 24.522130D +/- 0.5" equinox: 2000 fluxnum_1: 1 fluxval_1: V = 11.53 +/- 0.5 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 45.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF52 config: FGS opmode: POS aperture: 3 sp_element: F583W num_exp: 1 time_per_exp: 2S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32, param_2: ACQ-MODE = SEARCH req_1: POS TARG 5.35,15.22; req_2: ORIENT 92.411D +/- 0.01D; req_3: SEQ 45-75 NON-INT; comment_1: CENTRAL STAR ! linenum: 46.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF55-REF config: FGS opmode: POS aperture: 3 sp_element: F583W num_exp: 1 time_per_exp: 2S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32, param_2: ACQ-MODE = SEARCH req_1: SAME POS FOR 46-75 AS 45; req_2: CYCLE 4/45-75; ! linenum: 47.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF52 config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ comment_1: CENTRAL STAR ! linenum: 48.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF63-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 49.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF89-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 50.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF91-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 51.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF79-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 52.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF51-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 53.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF69-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 54.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF52 config: FGS opmode: POS aperture: 3 sp_element: F583W num_exp: 1 time_per_exp: 2S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32, param_2: ACQ-MODE = SEARCH comment_1: CENTRAL STAR ! linenum: 55.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF74-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 56.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF72-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 57.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF92-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 58.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF93-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 59.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF70-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 60.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF55-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 61.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF71-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 62.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF76-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 63.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF83-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 64.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF30-REF config: FGS opmode: POS aperture: 3 sp_element: F583W num_exp: 1 time_per_exp: 2S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32, param_2: ACQ-MODE = SEARCH ! linenum: 65.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF52 config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ comment_1: CENTRAL STAR ! linenum: 66.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF46-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 67.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF45-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 68.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF11-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 69.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF25-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 70.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF90-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 71.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF80-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 72.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF88-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 73.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF63-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 74.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF52 config: FGS opmode: POS aperture: 3 sp_element: F583W num_exp: 1 time_per_exp: 2S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32, param_2: ACQ-MODE = SEARCH comment_1: CENTRAL STAR ! linenum: 75.000 sequence_1: DEFINE sequence_2: SEQ1 targname: OF55-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: ^ param_1: ^ param_2: ^ ! linenum: 100.000 sequence_1: USE SEQ1 comment_1: BREAK IN SERIES AVOIDS HST SUN comment_2: AND MSS CONSTRAINTS ! linenum: 101.000 sequence_1: USE SEQ1 req_1: AFTER 100 BY 30D +/- 2D; ! linenum: 102.000 sequence_1: USE SEQ1 req_1: AFTER 100 BY 60D +/- 2D; ! linenum: 103.000 sequence_1: USE SEQ1 req_1: AFTER 100 BY 90D +/- 2D; ! ! end of exposure logsheet ! No scan data records found