COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: IGR J1746-321 ToO Exp. Code: BM197B Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Amy Mioduszewski Address: NRAO P. O. Box O Socorro, NM 87801 USA Phone: 505-835-7263 EMAIL: amiodusz@nrao.edu Fax: 505-835-7027 Phone during observation: 505-838-0393 Observing mode: VLBA Notes: Target of Opportunity Schedule for VLBA_HN (Code Hn ) Page 2 IGR J1746-321 ToO UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 8 Apr 2003 Day 98 --- Next scan frequencies: 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 Next BBC frequencies: 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 11 02 00 J1733-1304 19 19 15 28.9 209.8 1.8 21.9 0 1 1 0 11 02 00 11 03 00 --- 19 20 15 28.9 210.0 1.8 22.1 60 F 1 800 11 03 00 I1746-321 19 20 15 11.8 200.1 1.6 17.3 -40 1 1 800 11 03 00 11 05 00 --- 19 22 15 11.7 200.5 1.6 17.7 80 F 1 2400 11 05 00 W109 19 22 15 14.8 201.0 1.6 17.4 -12 1 1 2400 11 05 00 11 06 00 --- 19 23 15 14.7 201.2 1.6 17.6 48 F 1 3200 11 06 00 I1746-321 19 23 15 11.6 200.7 1.6 17.8 -12 1 1 3200 11 06 00 11 08 00 --- 19 25 16 11.5 201.1 1.6 18.2 108 F 1 4800 11 08 00 W109 19 25 16 14.6 201.6 1.6 18.0 -12 1 1 4800 11 08 00 11 09 00 --- 19 26 16 14.5 201.8 1.6 18.2 48 F 1 5600 11 09 00 I1746-321 19 26 16 11.4 201.3 1.7 18.4 -12 1 1 5600 11 09 00 11 11 00 --- 19 28 16 11.3 201.8 1.7 18.7 108 F 1 7200 11 11 00 W109 19 28 16 14.4 202.3 1.7 18.5 -12 1 1 7200 11 11 00 11 12 00 --- 19 29 16 14.3 202.5 1.7 18.7 48 F 1 8000 11 12 00 I1746-321 19 29 16 11.2 202.0 1.7 18.9 -12 1 1 8000 11 12 00 11 14 00 --- 19 31 17 11.1 202.4 1.7 19.2 108 F 1 9600 11 14 00 W109 19 31 17 14.2 202.9 1.7 19.0 -12 1 1 9600 11 14 00 11 15 00 --- 19 32 17 14.1 203.1 1.7 19.2 48 F 1 10400 11 15 00 I1746-321 19 32 17 11.0 202.6 1.8 19.4 -12 1 1 10400 11 15 00 11 17 30 --- 19 34 47 10.8 203.1 1.8 19.8 138 F 1 12400 11 17 30 GC441 19 34 47 13.0 205.2 1.9 21.0 -10 1 1 12400 11 17 30 11 18 30 --- 19 35 48 12.9 205.4 1.9 21.1 50 F 1 13200 11 18 30 I1746-321 19 35 48 10.8 203.3 1.8 20.0 -10 1 1 13200 11 18 30 11 20 30 --- 19 37 48 10.6 203.7 1.9 20.4 110 F 1 14800 Schedule for VLBA_HN (Code Hn ) Page 3 IGR J1746-321 ToO UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 8 Apr 2003 Day 98 --- 11 20 30 GC441 19 37 48 12.8 205.8 1.9 21.5 -10 1 1 14800 11 20 30 11 21 30 --- 19 38 48 12.7 206.0 2.0 21.6 50 F 1 15600 11 21 30 W56 19 38 48 14.2 205.4 1.9 20.9 -9 1 1 15600 11 21 30 11 22 30 --- 19 39 48 14.1 205.6 1.9 21.1 51 F 1 16400 11 24 30 J1733-1304 19 41 48 26.7 215.5 2.1 25.9 89 1 1 16400 11 24 30 11 25 30 --- 19 42 49 26.6 215.7 2.2 26.0 60 F 1 17200 11 25 30 I1746-321 19 42 49 10.2 204.7 1.9 21.2 -39 1 2 17200 11 25 30 11 27 30 --- 19 44 49 10.1 205.1 2.0 21.5 81 R 1 15600 11 27 30 W109 19 44 49 13.2 205.8 1.9 21.4 -12 1 2 15600 11 27 30 11 28 30 --- 19 45 49 13.1 206.0 1.9 21.5 48 R 1 14800 11 28 30 I1746-321 19 45 49 10.0 205.3 2.0 21.7 -12 1 2 14800 11 28 30 11 30 30 --- 19 47 49 9.9 205.7 2.0 22.0 108 R 1 13200 11 30 30 W109 19 47 49 12.9 206.4 2.0 21.9 -12 1 2 13200 11 30 30 11 31 30 --- 19 48 50 12.9 206.6 2.0 22.0 48 R 1 12400 11 31 30 I1746-321 19 48 50 9.8 205.9 2.0 22.2 -12 1 2 12400 11 31 30 11 33 30 --- 19 50 50 9.6 206.3 2.1 22.5 108 R 1 10800 11 33 30 W109 19 50 50 12.7 207.0 2.0 22.4 -12 1 2 10800 11 33 30 11 34 30 --- 19 51 50 12.6 207.2 2.0 22.5 48 R 1 10000 11 34 30 I1746-321 19 51 50 9.5 206.5 2.1 22.7 -12 1 2 10000 11 34 30 11 36 30 --- 19 53 50 9.4 206.9 2.1 23.0 108 R 1 8400 11 36 30 W109 19 53 50 12.4 207.6 2.1 22.9 -12 1 2 8400 11 36 30 11 37 30 --- 19 54 51 12.4 207.8 2.1 23.0 48 R 1 7600 11 37 30 I1746-321 19 54 51 9.3 207.1 2.1 23.2 -12 1 2 7600 11 37 30 11 40 00 --- 19 57 21 9.1 207.6 2.2 23.6 138 R 1 5600 11 40 00 GC441 19 57 21 11.1 209.8 2.3 24.7 -10 1 2 5600 11 40 00 11 41 00 --- 19 58 21 11.0 210.0 2.3 24.9 50 R 1 4800 11 41 00 I1746-321 19 58 21 9.0 207.8 2.2 23.8 -10 1 2 4800 11 41 00 11 43 00 --- 20 00 22 8.8 208.2 2.2 24.1 110 R 1 3200 Schedule for VLBA_HN (Code Hn ) Page 4 IGR J1746-321 ToO UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 8 Apr 2003 Day 98 --- 11 43 00 GC441 20 00 22 10.8 210.4 2.3 25.2 -10 1 2 3200 11 43 00 11 44 00 --- 20 01 22 10.7 210.6 2.3 25.3 50 R 1 2400 11 44 00 W56 20 01 22 12.2 210.1 2.3 24.6 -9 1 2 2400 11 44 00 11 45 00 --- 20 02 22 12.1 210.3 2.3 24.8 51 R 1 1600 11 47 00 J1733-1304 20 04 22 24.2 220.9 2.5 29.5 90 1 2 1600 11 47 00 11 48 00 --- 20 05 22 24.0 221.1 2.5 29.6 60 R 1 800 11 48 00 I1746-321 20 05 22 8.4 209.1 2.3 24.9 -37 1 3 800 11 48 00 11 50 00 --- 20 07 23 8.2 209.5 2.3 25.3 83 F 1 800 11 50 00 W109 20 07 23 11.2 210.4 2.3 25.1 -12 1 3 800 11 50 00 11 51 00 --- 20 08 23 11.1 210.6 2.3 25.2 48 F 1 1600 11 51 00 I1746-321 20 08 23 8.1 209.7 2.4 25.4 -12 1 3 1600 11 51 00 11 53 00 --- 20 10 23 7.9 210.1 2.4 25.7 108 F 1 3200 11 53 00 W109 20 10 23 11.0 211.0 2.4 25.6 -12 1 3 3200 11 53 00 11 54 00 --- 20 11 23 10.9 211.2 2.4 25.7 48 F 1 4000 11 54 00 I1746-321 20 11 23 7.8 210.3 2.4 25.9 -12 1 3 4000 11 54 00 11 56 00 --- 20 13 24 7.6 210.7 2.4 26.2 108 F 1 5600 11 56 00 W109 20 13 24 10.7 211.6 2.4 26.0 -12 1 3 5600 11 56 00 11 57 00 --- 20 14 24 10.6 211.8 2.4 26.2 48 F 1 6400 11 57 00 I1746-321 20 14 24 7.5 210.9 2.5 26.4 -12 1 3 6400 11 57 00 11 59 00 --- 20 16 24 7.4 211.3 2.5 26.7 108 F 1 8000 11 59 00 W109 20 16 24 10.4 212.2 2.5 26.5 -12 1 3 8000 11 59 00 12 00 00 --- 20 17 24 10.3 212.4 2.5 26.7 48 F 1 8800 12 00 00 I1746-321 20 17 24 7.3 211.5 2.5 26.9 -12 1 3 8800 12 00 00 12 02 30 --- 20 19 55 7.0 211.9 2.6 27.2 138 F 1 10800 12 02 30 GC441 20 19 55 8.9 214.2 2.6 28.3 -10 1 3 10800 12 02 30 12 03 30 --- 20 20 55 8.8 214.4 2.7 28.4 50 F 1 11600 12 03 30 I1746-321 20 20 55 6.9 212.1 2.6 27.4 -10 1 3 11600 12 03 30 12 05 30 --- 20 22 55 6.7 212.5 2.6 27.7 110 F 1 13200 Schedule for VLBA_HN (Code Hn ) Page 5 IGR J1746-321 ToO UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 8 Apr 2003 Day 98 --- 12 05 30 GC441 20 22 55 8.6 214.8 2.7 28.7 -10 1 3 13200 12 05 30 12 06 30 --- 20 23 55 8.5 215.0 2.7 28.9 50 F 1 14000 12 06 30 W56 20 23 55 10.0 214.6 2.6 28.2 -9 1 3 14000 12 06 30 12 07 30 --- 20 24 56 9.9 214.8 2.6 28.4 51 F 1 14800 12 09 30 J1733-1304 20 26 56 21.3 226.0 2.9 32.7 91 1 3 14800 12 09 30 12 10 30 --- 20 27 56 21.2 226.2 2.9 32.8 60 F 1 15600 12 10 30 I1746-321 20 27 56 6.2 213.4 2.7 28.5 -36 1 3 15600 12 10 30 12 12 30 --- 20 29 56 6.0 213.8 2.7 28.8 84 F 1 17200 12 12 30 W109 20 29 56 9.0 214.8 2.7 28.6 -12 1 4 17200 12 12 30 12 13 30 --- 20 30 57 8.9 215.0 2.7 28.8 48 R 1 16400 12 13 30 I1746-321 20 30 57 5.9 214.0 2.7 H 29.0 -12 1 4 16400 12 13 30 12 15 30 --- 20 32 57 5.7 214.4 2.8 H 29.3 0 R 1 14800 12 15 30 W109 20 32 57 8.7 215.4 2.7 29.1 -12 1 4 14800 12 15 30 12 16 30 --- 20 33 57 8.6 215.6 2.7 29.2 48 R 1 14000 12 16 30 I1746-321 20 33 57 5.6 214.6 2.8 H 29.4 -12 1 4 14000 12 16 30 12 18 30 --- 20 35 57 5.4 214.9 2.8 H 29.7 0 R 1 12400 12 18 30 W109 20 35 57 8.4 216.0 2.8 29.5 -12 1 4 12400 12 18 30 12 19 30 --- 20 36 58 8.3 216.2 2.8 29.7 48 R 1 11600 12 19 30 I1746-321 20 36 58 5.3 215.1 2.8 H 29.9 -12 1 4 11600 12 19 30 12 21 30 --- 20 38 58 5.1 215.5 2.9 H 30.2 0 R 1 10000 12 21 30 W109 20 38 58 8.0 216.6 2.8 30.0 -12 1 4 10000 12 21 30 12 22 30 --- 20 39 58 7.9 216.8 2.9 30.1 48 R 1 9200 12 22 30 I1746-321 20 39 58 5.0 215.7 2.9 H 30.3 -12 1 4 9200 12 22 30 12 25 00 --- 20 42 28 4.7 216.1 2.9 H 30.7 0 R 1 7200 12 25 00 GC441 20 42 28 6.5 218.5 3.0 31.6 -9 1 4 7200 12 25 00 12 26 00 --- 20 43 29 6.3 218.7 3.0 31.8 51 R 1 6400 12 26 00 I1746-321 20 43 29 4.6 216.3 3.0 H 30.8 -9 1 4 6400 12 26 00 12 28 00 --- 20 45 29 4.4 216.7 3.0 H 31.1 0 R 1 4800 Schedule for VLBA_HN (Code Hn ) Page 6 IGR J1746-321 ToO UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 8 Apr 2003 Day 98 --- 12 28 00 GC441 20 45 29 6.1 219.1 3.1 32.0 -9 1 4 4800 12 28 00 12 29 00 --- 20 46 29 6.0 219.3 3.1 H 32.2 0 R 1 4000 12 29 00 W56 20 46 29 7.6 219.0 3.0 31.5 -9 1 4 4000 12 29 00 12 30 00 --- 20 47 29 7.4 219.2 3.0 31.7 51 R 1 3200 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /users/cwalker/sched/setups/v2cm-256-8-2.set Matches group v2cm_d3 in /users/cwalker/sched/catalogs/freq.dat Fourth 2cm filter Setup group: 1 Station: VLBA Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 14600.00 14600.00 14600.00 14600.00 14600.00 14600.00 14600.00 14600.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = B D B D B D B D VLBA FE= omit 2cm omit 2cm VLBA Synth= 14.6 10.9 10.9 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 BBC fr= 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- IGR J1746-321 ToO Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Source Source position (RA/Dec) (B1950) (J2000) (Date) * I1746-321 17 42 59.799246 * 17 46 15.607000 17 46 27.723285 -32 12 53.51182 *-32 14 00.70000 -32 14 06.16971 From catalog imbedded in main SCHED input file. * GC441 17 37 43.113166 * 17 40 54.524900 17 41 06.394475 -29 28 19.93553 *-29 29 50.29000 -29 29 58.12492 From catalog imbedded in main SCHED input file. * J1733-1304 17 30 13.535186 * 17 33 02.705784 17 33 13.246165 -13 02 45.83985 *-13 04 49.54833 -13 05 04.87816 From catalog imbedded in main SCHED input file. * W109 17 45 34.736305 * 17 48 45.684100 17 48 57.483620 -29 06 43.28585 *-29 07 39.37400 -29 07 45.19707 From catalog imbedded in main SCHED input file. * W56 17 42 42.769582 * 17 45 52.494900 17 46 04.233452 -28 19 17.62858 *-28 20 26.27000 -28 20 33.14011 From catalog imbedded in main SCHED input file. The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) I1746-321 110.9 GC441 112.3 J1733-1304 114.5 W109 110.6 W56 111.2 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg