COVER INFORMATION Station: VLBA_BR (Code Br ) Experiment: No description given. Exp. Code: bc120ae Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Shami Chatterjee Address: Cornell University 515 Space Sciences Ithaca NY 14853 USA Phone: 607 255 9020 EMAIL: shami@astro.cornell.edu Fax: Phone during observation: 607 255 9020 Observing mode: Notes: The optimal observation date is Apr 22. Please try to observe within 2 weeks of this date. Schedule for VLBA_BR (Code Br ) Page 2 No description given. 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) ---------------------------------------------------------------------------------------- --- Fri 25 Apr 2003 Day 115 --- Next scan frequencies: 1409.99 1409.99 1503.99 1503.99 1589.99 1589.99 1679.99 1679.99 Next BBC frequencies: 990.01 990.01 896.01 896.01 810.01 810.01 720.01 720.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 11 30 11 J1935+2031 17 43 45 54.5 131.1 -1.9 -32.5 0 1 1 0 11 30 01 11 37 39 --- 17 51 14 55.4 133.7 -1.7 -31.0 448 F 1 6104 11 37 49 B1937+21 17 51 24 55.7 131.2 -1.8 -32.7 2 1 1 6104 11 37 39 11 39 49 --- 17 53 24 56.0 131.9 -1.8 -32.3 120 F 1 7834 11 40 00 J1946+2300 17 53 36 56.4 128.3 -1.9 -34.7 3 1 1 7834 11 39 49 11 41 30 --- 17 55 06 56.6 128.8 -1.9 -34.4 90 F 1 9188 11 41 47 J1935+2031 17 55 22 55.9 135.2 -1.7 -30.2 6 1 1 9188 11 41 30 11 43 16 --- 17 56 52 56.0 135.7 -1.6 -29.8 90 F 1 10606 11 43 27 B1937+21 17 57 03 56.4 133.2 -1.7 -31.5 3 1 1 10606 11 43 16 11 45 26 --- 17 59 03 56.7 133.9 -1.7 -31.1 120 F 1 12339 11 45 39 J1946+2300 17 59 15 57.1 130.3 -1.8 -33.6 4 1 1 12339 11 45 26 11 47 08 --- 18 00 45 57.3 130.8 -1.8 -33.3 90 F 1 13700 11 47 26 J1935+2031 18 01 02 56.5 137.3 -1.6 -28.9 7 1 1 13700 11 47 08 11 48 56 --- 18 02 32 56.7 137.8 -1.5 -28.6 90 F 1 15128 11 49 06 B1937+21 18 02 43 57.1 135.3 -1.6 -30.3 3 1 1 15128 11 48 56 11 51 06 --- 18 04 43 57.3 136.0 -1.6 -29.9 120 F 1 16864 11 51 19 J1946+2300 18 04 56 57.8 132.3 -1.7 -32.4 4 1 2 16864 11 51 06 11 52 48 --- 18 06 26 58.0 132.9 -1.7 -32.1 90 R 1 16969 11 53 06 J1935+2031 18 06 44 57.2 139.4 -1.5 -27.6 8 1 2 16969 11 52 48 11 54 36 --- 18 08 14 57.3 140.0 -1.5 -27.3 90 R 1 15531 11 54 47 B1937+21 18 08 25 57.8 137.4 -1.5 -29.1 3 1 2 15531 11 54 36 11 56 47 --- 18 10 25 58.0 138.2 -1.5 -28.6 120 R 1 13792 11 57 00 J1946+2300 18 10 38 58.5 134.5 -1.6 -31.2 5 1 2 13792 11 56 47 11 58 30 --- 18 12 08 58.7 135.0 -1.6 -30.8 90 R 1 12419 Schedule for VLBA_BR (Code Br ) Page 3 No description given. 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) ---------------------------------------------------------------------------------------- --- Fri 25 Apr 2003 Day 115 --- 11 58 48 J1935+2031 18 12 27 57.8 141.6 -1.4 -26.3 8 1 2 12419 11 58 30 12 00 18 --- 18 13 57 57.9 142.2 -1.4 -25.9 90 R 1 10973 12 00 29 B1937+21 18 14 07 58.4 139.6 -1.4 -27.7 3 1 2 10973 12 00 18 12 02 29 --- 18 16 07 58.6 140.4 -1.4 -27.2 120 R 1 9233 12 02 42 J1946+2300 18 16 21 59.2 136.6 -1.5 -29.9 5 1 2 9233 12 02 29 12 04 12 --- 18 17 51 59.3 137.2 -1.5 -29.5 90 R 1 7854 12 04 31 J1935+2031 18 18 10 58.3 143.9 -1.3 -24.8 9 1 2 7854 12 04 12 12 06 01 --- 18 19 40 58.5 144.5 -1.3 -24.4 90 R 1 6402 12 06 12 B1937+21 18 19 51 59.0 141.9 -1.3 -26.3 3 1 2 6402 12 06 01 12 08 11 --- 18 21 51 59.2 142.7 -1.3 -25.8 120 R 1 4662 12 08 25 J1946+2300 18 22 05 59.8 138.9 -1.4 -28.5 5 1 2 4662 12 08 11 12 09 55 --- 18 23 35 60.0 139.5 -1.4 -28.1 90 R 1 3280 12 10 14 J1935+2031 18 23 54 58.9 146.3 -1.2 -23.3 9 1 2 3280 12 09 55 12 11 44 --- 18 25 24 59.0 146.9 -1.2 -22.9 90 R 1 1826 12 11 55 B1937+21 18 25 35 59.6 144.3 -1.2 -24.8 3 1 2 1826 12 11 44 12 13 54 --- 18 27 35 59.8 145.1 -1.2 -24.3 120 R 1 88 12 14 08 J1946+2300 18 27 49 60.4 141.3 -1.3 -27.0 5 1 3 88 12 13 54 12 15 38 --- 18 29 19 60.6 141.9 -1.3 -26.6 90 F 1 1470 12 15 57 J1935+2031 18 29 38 59.4 148.7 -1.1 -21.8 8 1 3 1470 12 15 38 12 17 27 --- 18 31 08 59.5 149.3 -1.1 -21.3 90 F 1 2919 12 17 37 B1937+21 18 31 18 60.1 146.7 -1.1 -23.2 3 1 3 2919 12 17 27 12 19 37 --- 18 33 18 60.3 147.5 -1.1 -22.7 120 F 1 4652 12 19 50 J1946+2300 18 33 32 61.0 143.7 -1.2 -25.4 5 1 3 4652 12 19 37 12 21 20 --- 18 35 02 61.2 144.3 -1.2 -25.0 90 F 1 6029 12 21 38 J1935+2031 18 35 20 59.9 151.1 -1.0 -20.1 7 1 3 6029 12 21 20 12 23 08 --- 18 36 50 60.0 151.8 -1.0 -19.7 90 F 1 7466 12 23 18 B1937+21 18 37 00 60.6 149.2 -1.0 -21.6 2 1 3 7466 12 23 08 12 25 18 --- 18 39 00 60.8 150.0 -1.0 -21.0 120 F 1 9198 Schedule for VLBA_BR (Code Br ) Page 4 No description given. 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) ---------------------------------------------------------------------------------------- --- Fri 25 Apr 2003 Day 115 --- 12 25 30 J1946+2300 18 39 13 61.6 146.1 -1.1 -23.8 4 1 3 9198 12 25 18 12 27 00 --- 18 40 43 61.7 146.8 -1.1 -23.4 90 F 1 10565 12 27 17 J1935+2031 18 41 00 60.3 153.6 -0.9 -18.4 7 1 3 10565 12 27 00 12 28 47 --- 18 42 30 60.4 154.3 -0.9 -18.0 90 F 1 11992 12 28 57 B1937+21 18 42 41 61.1 151.7 -1.0 -19.9 3 1 3 11992 12 28 47 12 30 57 --- 18 44 41 61.2 152.6 -0.9 -19.3 120 F 1 13724 12 31 10 J1946+2300 18 44 53 62.1 148.7 -1.0 -22.1 4 1 3 13724 12 30 57 12 32 39 --- 18 46 23 62.2 149.4 -1.0 -21.7 90 F 1 15090 12 32 57 J1935+2031 18 46 41 60.7 156.2 -0.8 -16.7 7 1 3 15090 12 32 39 12 34 27 --- 18 48 11 60.8 156.9 -0.8 -16.2 90 F 1 16520 12 34 37 B1937+21 18 48 21 61.5 154.3 -0.9 -18.1 3 1 4 16520 12 34 27 12 36 37 --- 18 50 21 61.7 155.2 -0.8 -17.5 120 R 1 16947 12 36 49 J1946+2300 18 50 34 62.5 151.3 -0.9 -20.4 4 1 4 16947 12 36 37 12 38 19 --- 18 52 04 62.7 152.0 -0.9 -19.9 90 R 1 15580 12 38 37 J1935+2031 18 52 22 61.1 158.9 -0.7 -14.9 7 1 4 15580 12 38 19 12 40 07 --- 18 53 52 61.2 159.6 -0.7 -14.4 90 R 1 14149 12 40 17 B1937+21 18 54 02 61.9 156.9 -0.8 -16.3 2 1 4 14149 12 40 07 12 42 16 --- 18 56 02 62.0 157.9 -0.7 -15.7 120 R 1 12418 12 42 29 J1946+2300 18 56 15 63.0 154.0 -0.8 -18.5 4 1 4 12418 12 42 16 12 43 59 --- 18 57 45 63.1 154.7 -0.8 -18.0 90 R 1 11050 12 44 16 J1935+2031 18 58 02 61.4 161.5 -0.6 -13.0 7 1 4 11050 12 43 59 12 45 46 --- 18 59 32 61.5 162.2 -0.6 -12.6 90 R 1 9623 12 45 56 B1937+21 18 59 42 62.3 159.7 -0.7 -14.4 2 1 4 9623 12 45 46 12 47 56 --- 19 01 42 62.4 160.6 -0.6 -13.8 120 R 1 7895 12 48 08 J1946+2300 19 01 55 63.4 156.8 -0.7 -16.6 4 1 4 7895 12 47 56 12 49 38 --- 19 03 25 63.5 157.5 -0.7 -16.1 90 R 1 6531 12 49 55 J1935+2031 19 03 41 61.7 164.2 -0.5 -11.2 6 1 4 6531 12 49 38 12 51 24 --- 19 05 11 61.7 165.0 -0.5 -10.6 90 R 1 5111 Schedule for VLBA_BR (Code Br ) Page 5 No description given. 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) ---------------------------------------------------------------------------------------- --- Fri 25 Apr 2003 Day 115 --- 12 51 34 B1937+21 19 05 21 62.6 162.4 -0.6 -12.5 2 1 4 5111 12 51 24 12 53 34 --- 19 07 21 62.7 163.4 -0.5 -11.8 120 R 1 3389 12 53 46 J1946+2300 19 07 33 63.7 159.6 -0.6 -14.7 4 1 4 3389 12 53 34 12 55 15 --- 19 09 03 63.8 160.3 -0.6 -14.1 90 R 1 2030 12 55 31 J1935+2031 19 09 19 61.9 167.0 -0.4 -9.2 5 1 4 2030 12 55 15 12 57 01 --- 19 10 49 62.0 167.7 -0.4 -8.7 90 R 1 623 12 57 10 B1937+21 19 10 58 62.8 165.2 -0.5 -10.6 1 1 5 623 12 57 01 12 59 10 --- 19 12 58 62.9 166.2 -0.4 -9.9 120 F 1 1094 12 59 21 J1946+2300 19 13 09 64.0 162.4 -0.6 -12.7 3 1 5 1094 12 59 10 13 00 51 --- 19 14 39 64.1 163.2 -0.5 -12.1 90 F 1 2443 13 01 05 J1935+2031 19 14 54 62.1 169.7 -0.3 -7.3 4 1 5 2443 13 00 51 13 02 35 --- 19 16 24 62.1 170.5 -0.3 -6.8 90 F 1 3833 13 02 44 B1937+21 19 16 33 63.0 168.0 -0.4 -8.6 1 1 5 3833 13 02 35 13 04 44 --- 19 18 33 63.1 169.0 -0.4 -7.8 120 F 1 5548 13 04 54 J1946+2300 19 18 44 64.3 165.3 -0.5 -10.6 2 1 5 5548 13 04 44 13 06 24 --- 19 20 14 64.3 166.1 -0.4 -10.1 90 F 1 6887 13 06 38 J1935+2031 19 20 27 62.2 172.5 -0.2 -5.3 3 1 5 6887 13 06 24 13 08 07 --- 19 21 57 62.3 173.3 -0.2 -4.8 90 F 1 8262 13 08 16 B1937+21 19 22 06 63.2 170.9 -0.3 -6.6 1 1 5 8262 13 08 07 13 10 16 --- 19 24 06 63.3 171.9 -0.3 -5.8 120 F 1 9976 13 10 26 J1946+2300 19 24 16 64.5 168.2 -0.4 -8.5 2 1 5 9976 13 10 16 13 11 56 --- 19 25 46 64.5 169.0 -0.3 -8.0 90 F 1 11310 13 12 09 J1935+2031 19 25 59 62.3 175.3 -0.2 -3.4 3 1 5 11310 13 11 56 13 13 39 --- 19 27 29 62.4 176.1 -0.1 -2.8 90 F 1 12682 13 13 48 B1937+21 19 27 38 63.3 173.7 -0.2 -4.5 1 1 5 12682 13 13 39 13 15 47 --- 19 29 38 63.4 174.7 -0.2 -3.8 120 F 1 14396 13 15 58 J1946+2300 19 29 49 64.7 171.1 -0.3 -6.4 2 1 5 14396 13 15 47 13 17 27 --- 19 31 19 64.7 171.9 -0.2 -5.8 90 F 1 15728 Schedule for VLBA_BR (Code Br ) Page 6 No description given. 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) ---------------------------------------------------------------------------------------- --- Fri 25 Apr 2003 Day 115 --- 13 17 40 J1935+2031 19 31 32 62.4 178.1 -0.1 -1.4 3 1 5 15728 13 17 27 13 19 10 --- 19 33 02 62.4 178.8 0.0 -0.8 90 F 1 17100 13 19 19 B1937+21 19 33 11 63.4 176.6 -0.1 -2.5 1 1 6 17100 13 19 10 13 21 19 --- 19 35 11 63.4 177.6 -0.1 -1.7 120 R 1 16386 13 21 29 J1946+2300 19 35 21 64.8 174.1 -0.2 -4.3 1 1 6 16386 13 21 19 13 22 59 --- 19 36 51 64.8 174.9 -0.2 -3.7 90 R 1 15055 13 23 12 J1935+2031 19 37 04 62.4 180.9 0.0 0.6 2 1 6 15055 13 22 59 13 24 41 --- 19 38 34 62.4 181.6 0.1 1.2 90 R 1 13683 13 24 50 B1937+21 19 38 43 63.5 179.4 0.0 -0.4 1 1 6 13683 13 24 41 13 26 50 --- 19 40 43 63.5 180.5 0.0 0.4 120 R 1 11969 13 27 00 J1946+2300 19 40 53 64.8 177.1 -0.1 -2.1 1 1 6 11969 13 26 50 13 28 30 --- 19 42 23 64.9 177.9 -0.1 -1.5 90 R 1 10638 13 28 43 J1935+2031 19 42 36 62.4 183.7 0.1 2.6 2 1 6 10638 13 28 30 13 30 13 --- 19 44 06 62.3 184.4 0.1 3.2 90 R 1 9266 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: v18cm-256-8-2-psrvlb.set Matches group v20cm_2 in /home/filehost/cwalker/sched/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. 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= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 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= L L L L L L L L IF = A C A C A C A C VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 1409.99 1409.99 1503.99 1503.99 1589.99 1589.99 1679.99 1679.99 BBC fr= 990.01 990.01 896.01 896.01 810.01 810.01 720.01 720.01 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 = OFF PCALXB1= S1 S2 S3 S4 S5 S6 S7 S8 PCALXB2= M1 M2 M3 M4 M5 M6 M7 M8 PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- No description given. 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) * B1937+21 19 37 28.745934 * 19 39 38.584075 19 39 46.593605 21 28 00.96175 * 21 34 58.76899 21 35 06.64805 From catalog imbedded in main SCHED input file. * J1935+2031 19 32 59.558226 * 19 35 10.472879 19 35 18.576108 20 25 14.21753 * 20 31 54.15430 20 32 01.23229 From catalog imbedded in main SCHED input file. * J1946+2300 19 43 57.820616 * 19 46 06.251974 19 46 14.134034 22 52 41.05335 * 23 00 04.41105 23 00 13.46865 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) B1937+21 92.1 J1935+2031 93.4 J1946+2300 90.3 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