! File: 1008C.PROP ! Database: PEPDB ! Date: 15-FEB-1994:21:52:31 coverpage: title_1: TRIGONOMETRIC PARALLAX OF RR LYRAE AND SU CAS sci_cat: STELLAR POPULATIONS sci_subcat: ASTROMETRY proposal_for: GTO/AST longterm: 2 pi_fname: WILLIAM pi_mi: H. pi_lname: JEFFERYS pi_inst: TEXAS, UNIVERSITY OF pi_country: USA pi_phone: 512-471-4461 keywords_1: VARIABLES, DISTANCE SCALE, POP I, POP II, PARALLAX, RR keywords_2: LYRAE, CEPHEID, SU CAS hours_pri: 8.00 num_pri: 22 fgs: X time_crit: X pi_position: PROFESSOR ! end of coverpage abstract: line_1: The goal of this project is to determine trigonometric parallaxes for RR Lyrae line_2: and SU Cas. Both the RR Lyrae stars and the Classical Cepheids are the line_3: fundamental distance indicators for the galactic and extragalactic distance line_4: scales. Unfortunately, RR Lyrae is the only true RR Lyrae star within the line_5: parallax range of the ST. The FGS yields an accuracy of 0.0005 arcsec for the line_6: trigonometric parallax, which should provide an accuracy for the absolute line_7: magnitude of RR Lyrae of 0.28 mag. line_9: SU Cas is nearest Classical Cepheid to us that is also faint enough to observe line_10: with the FGS. All other Cepheids are either too bright or too far for an line_11: accurate parallax to be determined. We expect that the accuracy of the final line_12: absolute magnitude for SU Cas will be 0.35 mag. line_14: While neither of these two parallax determinations will be definitive, we feel line_15: that the fundamental importance of the distance scale problem demands that we line_16: attempt to determine the trigonometric parallaxes of these two stars. ! ! end of abstract general_form_proposers: lname: JEFFERYS fname: WILLIAM mi: H. inst: TEXAS, UNIVERSITY OF country: USA ! lname: BENEDICT fname: GEORGE mi: F. inst: TEXAS, UNIVERSITY OF country: USA ! lname: DUNCOMBE fname: RAYNOR mi: L. inst: TEXAS, UNIVERSITY OF country: USA ! lname: FRANZ fname: OTTO mi: G. inst: LOWELL OBSERVATORY country: USA ! lname: FREDRICK fname: LAURENCE mi: W. inst: VIRGINIA, UNIVERSITY OF country: USA ! lname: HEMENWAY fname: PAUL mi: D. inst: TEXAS, UNIVERSITY OF country: USA ! lname: SHELUS fname: PETER mi: J. inst: TEXAS, UNIVERSITY OF country: USA ! lname: VAN ALTENA fname: WILLIAM mi: F. inst: YALE UNIVERSITY country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: Five epochs of observations will be made, each epoch being separated from line_2: the other by six months. Each epoch consists of 4 or 6 observations, line_3: distributed as follow:4,6,4,6,4, yielding 12 observations on each side of the line_4: earth's orbit. The observations extend over a two year period, occurring every line_5: six months starting in October 1986. If the launch is delayed then the line_6: observation period could start in February 1987. line_8: Cycle 1 0.67 hours line_9: Cycle 2 3.33 hours line_10: Cycle 3 1.67 hours line_11: Cycle 4 1.67 hours line_12: Cycle 5 0.67 hours ! question: 4 section: 1 line_1: Ground-based parallaxes are in the very best cases limited to an accuracy line_2: of 0.002 arcsec, which is some 4 times poorer than the projected accuracy from line_3: the ST. Given the large distances estimated for RR Lyrae and SU Cas, it is line_4: impossible to determine an accurate parallax for these stars from the ground line_5: even using the best available methods. ! question: 5 section: 1 line_1: Parallax observations must be made during the times when the parallax line_2: factor is at a maximum in order to achieve the highest possible accuracy in the line_3: parallax. The time tolerance of +/- 21 days in the observation dates is line_4: already at the maximum level that is acceptable. ! question: 6 section: 1 line_1: All of the FGS observations must be uninterrupted in order to minimize the line_2: effects of thermal drifts in the ST structure. ! question: 7 section: 1 line_1: The data reduction will be done with the Astrometric Data Reduction line_2: Software developed by the Astrometry Team on computational facilities already line_3: available at the home institutions of the Team members. ! question: 10 section: 1 line_1: Computational facilities and the ADRS software package. ! question: 12 section: 1 line_1: In order to obtain the highest possible accuracy, it is necessary to line_2: operate in a purely differential manner. In the case of the FGS, this means line_3: that the target field should always be placed in precisely the same part of the line_4: FGS pickle. In this case we are most concerned with local errors in the field line_5: distortion and encoders. These errors can be minimized if we are careful to line_6: keep our measurements as differential as is possible. To accomplish this we line_7: must orient the ST at the same roll angle for each observation at epochs 1, 3 line_8: and 5 and 180 degrees from that angle for epochs 2 and 4. Since each line_9: observation will take about 10 minutes, it is possible to complete all of the 4 line_10: or 6 observations for one epoch during one orbit. ! question: 13 section: 1 line_1: Trigonometric parallaxes will be obtained for the variable stars RR Lyrae line_2: and SU CAS. These observations should enable us to determine their absolute line_3: magnitudes to an accuracy of about 0.3 mag. and provide a check on their line_4: absolute magnitudes determined by other methods. ! !end of general form text general_form_address: lname: JEFFERYS fname: WILLIAM mi: H. category: PI inst: UNIVERSITY OF TEXAS addr_1: ASTRONOMY DEPARTMENT city: AUSTIN state: TX zip: 78712 country: USA phone: 512-471-4461 ! lname: VAN ALTENA fname: WILLIAM mi: F. category: CON inst: YALE UNIVERSITY addr_1: 260 WHITNEY AVENUE city: NEW HAVEN state: CT zip: 06511 country: USA phone: 203-436-8318 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: PCENRR descr_1: PICKLE CENTER FOR RR LYRAE pos_1: RA=19H 23M 52.54S +/- 0.1S, pos_2: DEC=+42D 41' 13.3" +/- 1" equinox: 1950 pm_or_par: NO comment_1: THIS TARGET WILL NOT BE MEASURED fluxnum_1: 1 fluxval_1: V= 10.0 +/- 1.0 ! targnum: 2 name_1: RR-LYRAE name_2: N18 descr_1: RR-LYRAE pos_1: RA= 19H 23M 52.25S +/- 0.1S, pos_2: DEC= +42D 41' 12.4" +/- 1" equinox: ^ pm_or_par: Y pos_epoch_bj: B pos_epoch_yr: 1950.00 ra_pm_val: -0.121000 ra_pm_unct: 0.010000 dec_pm_val: -0.1840 dec_pm_unct: 0.0100 fluxnum_1: 1 fluxval_1: V=7.9 +/- 0.7 ! targnum: 3 name_1: AST3-REF name_2: N20 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=-0.1S +/- 0.1S, pos_2: DEC-OFF=+72.6" +/- 1", pos_3: FROM 1 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=13.9 +/- 1.0 ! targnum: 4 name_1: AST4-REF name_2: N22 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=-10.5S +/- 0.1S, pos_2: DEC-OFF=+75.7" +/- 1", pos_3: FROM 1 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=15.0 +/- 1.0 ! targnum: 5 name_1: AST5-REF name_2: N36 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=-4.0S +/- 0.1S, pos_2: DEC-OFF=+23.9" +/- 1", pos_3: FROM 1 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=15.2 +/- 1.0 ! targnum: 6 name_1: AST6-REF name_2: N53 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=+7.4S +/- 0.1S, pos_2: DEC-OFF=+77.5" +/- 1", pos_3: FROM 1 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=15.6 +/- 1.0 ! targnum: 7 name_1: AST7-REF name_2: N55 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=+5.3S +/- 0.1S, pos_2: DEC-OFF=-33.3" +/- 1", pos_3: FROM 1 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=16.5 +/- 1.0 ! targnum: 8 name_1: AST8-REF name_2: N56 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=+2.3S +/- 0.1S, pos_2: DEC-OFF=-29.2" +/- 1", pos_3: FROM 1 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=14.6 +/- 1.0 ! targnum: 9 name_1: AST9-REF name_2: N57 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=+2.3S +/- 0.1S, pos_2: DEC-OFF=-63.9" +/- 1", pos_3: FROM 1 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=14.8 +/- 1.0 ! targnum: 10 name_1: AST10-REF name_2: N59 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=+2.5S +/- 0.1S, pos_2: DEC-OFF=+115.2" +/- 1", pos_3: FROM 1 equinox: 1950 pm_or_par: NO fluxnum_1: 1 fluxval_1: V=14.7 +/- 1.0 ! targnum: 11 name_1: AST11-REF name_2: N61 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=-6.1S +/- 0.1S, pos_2: DEC-OFF=+81.2" +/- 1", pos_3: FROM 1 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=14.9 +/- 1.0 ! targnum: 12 name_1: PCENSU descr_1: PICKLE CENTER FOR SU CAS pos_1: RA=2H 47M 27.43S +/- 0.1S, pos_2: DEC=+68D 38' 52.5" +/- 1" equinox: 1950 pm_or_par: NO comment_1: THIS TARGET WILL NOT BE MEASURED fluxnum_1: 1 fluxval_1: V= 10.0 +/- 1.0 ! targnum: 13 name_1: SU-CAS name_2: N27 descr_1: REFERENCE STAR FOR SU CAS descr_2: CLASSICAL CEPHEID VARIABLE STAR pos_1: RA= 2H 47M 27.86S +/- 0.1S, pos_2: DEC= +68D 40' 56.7" +/- 1" equinox: ^ pm_or_par: Y pos_epoch_bj: B pos_epoch_yr: 1950.00 ra_pm_val: 0.005000 ra_pm_unct: 0.004000 dec_pm_val: -0.0070 dec_pm_unct: 0.0030 fluxnum_1: 1 fluxval_1: V=7.1 +/- 0.3 ! targnum: 14 name_1: AST14-REF name_2: N32 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=-26.4S +/- 0.1S, pos_2: DEC-OFF=+107.6" +/- 1", pos_3: FROM 12 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=15.0 +/- 1.0 ! targnum: 15 name_1: AST15-REF name_2: N33 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=-13.7S +/- 0.1S, pos_2: DEC-OFF=+32.3" +/- 1", pos_3: FROM 12 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=16.3 +/- 1.0 ! targnum: 16 name_1: AST16-REF name_2: N34 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=-25.8S +/- 0.1S, pos_2: DEC-OFF=+162.9" +/- 1", pos_3: FROM 12 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=15.4 +/- 1.0 ! targnum: 17 name_1: AST17-REF name_2: N35 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=+0.4S +/- 0.1S, pos_2: DEC-OFF=+46.7" +/- 1", pos_3: FROM 12 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=16.3 +/- 1.0 ! targnum: 18 name_1: AST18-REF name_2: N36 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=+6.3S +/- 0.1S, pos_2: DEC-OFF=+79.2" +/- 1", pos_3: FROM 12 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=16.0 +/- 1.0 ! targnum: 19 name_1: AST19-REF name_2: N44 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=+29.2S +/- 0.1S, pos_2: DEC-OFF=-251.9" +/- 1", pos_3: FROM 12 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=10.9 +/- 1.0 ! targnum: 20 name_1: AST20-REF name_2: N45 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=+12.3S +/- 0.1S, pos_2: DEC-OFF=-237.9" +/- 1", pos_3: FROM 12 equinox: 1950 pm_or_par: NO fluxnum_1: 1 fluxval_1: V=12.2 +/- 1.0 ! targnum: 21 name_1: AST21-REF name_2: N46 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=+6.3S +/- 0.1S, pos_2: DEC-OFF=-167.4" +/- 1", pos_3: FROM 12 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=11.6 +/- 1.0 ! targnum: 22 name_1: AST22-REF name_2: N50 descr_1: REFERENCE STAR FOR SU CAS pos_1: RA-OFF=+5.0S +/- 0.1S, pos_2: DEC-OFF=-32.8" +/- 1", pos_3: FROM 12 equinox: ^ pm_or_par: NO fluxnum_1: 1 fluxval_1: V=12.9 +/- 1.0 ! targnum: 25 name_1: AST25-REF name_2: N75 descr_1: REFERENCE STAR FOR RR LYRAE pos_1: RA-OFF=+5.2S +/- 0.1S, pos_2: DEC-OFF=-207.1" +/- 1", pos_3: FROM 1 equinox: 1950 pm_or_par: NO fluxnum_1: 1 fluxval_1: V=14.1 +/- 1.0 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 0.500 sequence_1: DEFINE sequence_2: SEQ1 targname: PCENRR config: FGS opmode: POS aperture: 2 sp_element: F5ND num_exp: 0 time_per_exp: 53S s_to_n: 35 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32 req_1: SEQ 0.5-12 WITHIN 20M; req_2: SAME POS FOR 1-12 AS 0.5; req_3: SAME ORIENT FOR 1-12 AS 0.5; req_4: NON-INT / 0.5-12 ! linenum: 1.000 sequence_1: DEFINE sequence_2: SEQ1 targname: RR-LYRAE config: FGS opmode: POS aperture: 2 sp_element: F5ND num_exp: 1 time_per_exp: 53S s_to_n: 35 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32 ! linenum: 2.000 sequence_1: ^ targname: AST3-REF config: ^ opmode: ^ aperture: ^ sp_element: F550W num_exp: ^ time_per_exp: 53S s_to_n: 40 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 3.000 sequence_1: ^ targname: AST4-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 65 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 4.000 sequence_1: ^ targname: AST5-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 70 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 5.000 sequence_1: ^ targname: AST6-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 90 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 6.000 sequence_1: ^ targname: AST7-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 104S s_to_n: 190 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 7.000 sequence_1: ^ targname: AST8-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 50 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 8.000 sequence_1: ^ targname: AST9-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 55 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 9.000 sequence_1: DEFINE sequence_2: SEQ1 targname: AST10-REF config: FGS opmode: POS aperture: 2 sp_element: F550W num_exp: 1 time_per_exp: 53S s_to_n: 55 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32 ! linenum: 10.000 sequence_1: ^ targname: AST11-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 60 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 11.000 sequence_1: ^ targname: AST25-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 42 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 12.000 sequence_1: ^ targname: RR-LYRAE config: ^ opmode: ^ aperture: ^ sp_element: F5ND num_exp: ^ time_per_exp: 53S s_to_n: 35 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 13.000 sequence_1: USE SEQ1 req_1: AT 29-APR-90 +/- 30D; req_2: ORIENT 251D +/- 2D; req_3: REPEAT 13 EVERY 1D +/- 30D req_4: FOR 3 MORE TIMES; req_5: CYCLE 0 ! linenum: 14.000 sequence_1: USE SEQ1 req_1: AT 29-APR-91 +/- 30D; req_2: ORIENT 251D +/- 2D; req_3: REPEAT 14 EVERY 1D +/- 30D req_4: FOR 3 MORE TIMES; req_5: CYCLE 1 ! linenum: 15.000 sequence_1: USE SEQ1 req_1: AT 29-APR-92 +/- 30D; req_2: ORIENT 251D +/- 2D; req_3: REPEAT 15 EVERY 1D +/- 30D req_4: FOR 3 MORE TIMES; req_5: CYCLE 2 ! linenum: 16.000 sequence_1: USE SEQ1 req_1: AT 28-OCT-90 +/- 30D; req_2: ORIENT 71D +/- 2D; req_3: REPEAT 16 EVERY 1D +/- 30D req_4: FOR 5 MORE TIMES; req_5: CYCLE 1 ! linenum: 17.000 sequence_1: USE SEQ1 req_1: AT 28-OCT-91 +/- 30D; req_2: ORIENT 71D +/- 2D; req_3: REPEAT 17 EVERY 1D +/- 30D req_4: FOR 5 MORE TIMES; req_5: CYCLE 2 ! linenum: 18.500 sequence_1: DEFINE sequence_2: SEQ19 targname: PCENSU config: FGS opmode: POS aperture: 2 sp_element: F5ND num_exp: 0 time_per_exp: 53S s_to_n: 30 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32 req_1: SEQ 18.5-30 WITHIN 20M; req_2: SAME POS FOR 19-30 AS 18.5; req_3: SAME ORIENT FOR 19-30 AS 18.5; req_4: NON-INT / 18.5-30 ! linenum: 19.000 sequence_1: DEFINE sequence_2: SEQ19 targname: SU-CAS config: FGS opmode: POS aperture: 2 sp_element: F5ND num_exp: 1 time_per_exp: 53S s_to_n: 30 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32 ! linenum: 20.000 sequence_1: ^ targname: AST14-REF config: ^ opmode: ^ aperture: ^ sp_element: F550W num_exp: ^ time_per_exp: 53S s_to_n: 65 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 21.000 sequence_1: ^ targname: AST15-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 104S s_to_n: 160 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 22.000 sequence_1: ^ targname: AST16-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 80 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 23.000 sequence_1: ^ targname: AST17-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 104S s_to_n: 160 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 24.000 sequence_1: ^ targname: AST18-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 104S s_to_n: 120 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 25.000 sequence_1: ^ targname: AST19-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 30 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 26.000 sequence_1: ^ targname: AST20-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 30 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 27.000 sequence_1: ^ targname: AST21-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 30 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 28.000 sequence_1: ^ targname: AST22-REF config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: 53S s_to_n: 33 fluxnum_1: ^ priority: ^ param_1: ^ ! linenum: 30.000 sequence_1: DEFINE sequence_2: SEQ19 targname: SU-CAS config: FGS opmode: POS aperture: 2 sp_element: F5ND num_exp: 1 time_per_exp: 53S s_to_n: 30 fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32 ! linenum: 31.000 sequence_1: USE SEQ19 req_1: AT 28-AUG-90 +/- 30D; req_2: ORIENT 63D +/- 2D; req_3: REPEAT 31 EVERY 1D +/- 30D req_4: FOR 3 MORE TIMES; req_5: CYCLE 1 ! linenum: 32.000 sequence_1: USE SEQ19 req_1: AT 28-AUG-91 +/- 30D; req_2: ORIENT 63D +/- 2D; req_3: REPEAT 32 EVERY 1D +/- 30D req_4: FOR 3 MORE TIMES; req_5: CYCLE 2 ! linenum: 33.000 sequence_1: USE SEQ19 req_1: AT 28-AUG-92 +/- 30D; req_2: ORIENT 63D +/- 2D; req_3: REPEAT 33 EVERY 1D +/- 30D req_4: FOR 3 MORE TIMES; req_5: CYCLE 3 ! linenum: 34.000 sequence_1: USE SEQ19 req_1: AT 26-FEB-91 +/- 30D; req_2: ORIENT 243D +/- 2D; req_3: REPEAT 34 EVERY 1D +/- 30D req_4: FOR 5 MORE TIMES; req_5: CYCLE 1 ! linenum: 35.000 sequence_1: USE SEQ19 req_1: AT 26-FEB-92 +/- 30D; req_2: ORIENT 243D +/- 2D; req_3: REPEAT 35 EVERY 1D +/- 30D req_4: FOR 5 MORE TIMES; req_5: CYCLE 2 ! ! end of exposure logsheet ! No scan data records found