COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: Monitoring the Gravitational Lens PKS 1830-211 Exp. Code: bl098e Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Jim Lovell Address: ATNF/CSIRO c/o COSSA, GPO Box 3023, Canberra, 2601, ACT, Australia Phone: +61 2 6216 7234 (2200 -> 0700 UT) EMAIL: jim.lovell@atnf.csiro.au Fax: +61 2 6216 7222 Phone during observation: +61 2 6287 5527 (0700 -> 2200 UT) Observing mode: 1cm, 2cm, 4cm 128-4-2 Notes: Schedule for VLBA_HN (Code Hn ) Page 2 Monitoring the Gravitational Lens PKS 1830-211 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) ---------------------------------------------------------------------------------------- --- Sat 21 Dec 2002 Day 355 --- Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 14 42 29 3C345 15 54 32 80.4 104.9 -0.8 -67.1 0 1 1 0 14 42 29 14 47 28 --- 15 59 32 81.3 107.3 -0.7 -65.5 299 F 1 1995 Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 14 47 28 3C345 15 59 32 81.3 107.3 -0.7 -65.5 -6 1 1 1995 14 47 28 14 52 27 --- 16 04 32 82.1 110.2 -0.6 -63.4 293 F 1 3989 Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 14 52 27 3C345 16 04 32 82.1 110.2 -0.6 -63.4 -6 1 1 3989 14 52 27 14 57 26 --- 16 09 32 83.0 113.7 -0.6 -60.8 293 F 1 5984 14 59 56 J1751+0939 16 12 02 50.2 139.5 -1.7 -28.8 78 1 1 5984 14 59 56 15 04 55 =1749+096 16 17 02 50.8 141.2 -1.6 -27.7 299 F 1 7978 Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 15 04 55 J1751+0939 16 17 02 50.8 141.2 -1.6 -27.7 -6 1 1 7978 15 04 55 15 06 55 =1749+096 16 19 02 51.1 141.9 -1.5 -27.3 114 F 1 8776 15 06 55 J1751+0939 16 19 02 51.1 141.9 -1.5 -27.3 -6 1 1 8776 15 06 55 15 09 54 =1749+096 16 22 02 51.4 143.0 -1.5 -26.6 174 F 1 9973 Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 15 09 54 J1751+0939 16 22 02 51.4 143.0 -1.5 -26.6 -6 1 1 9973 15 09 54 15 14 53 =1749+096 16 27 02 51.9 144.8 -1.4 -25.4 293 F 1 11967 Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 15 14 53 1830-211 16 27 02 19.7 148.6 -2.1 -24.1 -71 1 1 11967 15 14 53 15 20 52 --- 16 33 02 20.2 150.0 -2.0 -23.1 288 F 1 14361 Source only 8.4 degrees from the Sun. Schedule for VLBA_HN (Code Hn ) Page 3 Monitoring the Gravitational Lens PKS 1830-211 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) ---------------------------------------------------------------------------------------- --- Sat 21 Dec 2002 Day 355 --- Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 15 20 52 1830-211 16 33 02 20.2 150.0 -2.0 -23.1 -6 1 1 14361 15 20 52 15 28 51 --- 16 41 02 20.9 151.8 -1.9 -21.7 473 F 1 17552 Source only 8.4 degrees from the Sun. 15 28 51 1830-211 16 41 02 20.9 151.8 -1.9 -21.7 -6 1 2 17552 15 28 51 15 32 51 --- 16 45 02 21.3 152.8 -1.8 -21.0 233 R 1 15956 Source only 8.4 degrees from the Sun. Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 15 32 51 1830-211 16 45 02 21.3 152.8 -1.8 -21.0 -6 1 2 15956 15 32 51 15 50 48 --- 17 03 02 22.7 157.0 -1.5 -17.8 1071 R 1 8776 Source only 8.4 degrees from the Sun. Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 15 53 17 J1751+0939 17 05 32 55.2 159.8 -0.8 -14.9 79 1 2 8776 15 53 17 15 57 17 =1749+096 17 09 32 55.5 161.5 -0.7 -13.7 239 R 1 7180 15 57 17 1830-211 17 09 32 23.1 158.6 -1.4 -16.6 -71 1 2 7180 15 57 17 16 01 16 --- 17 13 32 23.4 159.6 -1.3 -15.9 169 R 1 5585 Source only 8.4 degrees from the Sun. Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 16 01 16 1830-211 17 13 32 23.4 159.6 -1.3 -15.9 -6 1 2 5585 16 01 16 16 11 14 --- 17 23 32 24.0 162.0 -1.2 -14.0 592 R 1 1596 Source only 8.4 degrees from the Sun. 16 11 14 J1751+0939 17 23 32 56.2 167.5 -0.5 -9.3 -70 1 2 1596 16 11 14 16 15 14 =1749+096 17 27 32 56.3 169.2 -0.4 -8.0 169 R 1 0 Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 16 15 14 J1751+0939 17 27 32 56.3 169.2 -0.4 -8.0 -6 1 3 0 16 15 14 16 19 13 =1749+096 17 31 32 56.4 171.0 -0.3 -6.7 233 F 1 1596 Schedule for VLBA_HN (Code Hn ) Page 4 Monitoring the Gravitational Lens PKS 1830-211 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) ---------------------------------------------------------------------------------------- --- Sat 21 Dec 2002 Day 355 --- 16 19 13 1830-211 17 31 32 24.4 164.0 -1.0 -12.5 -70 1 3 1596 16 19 13 16 37 10 --- 17 49 32 25.2 168.6 -0.7 -8.9 1007 F 1 8776 Source only 8.4 degrees from the Sun. Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 16 37 10 1830-211 17 49 32 25.2 168.6 -0.7 -8.9 -6 1 3 8776 16 37 10 16 44 09 --- 17 56 32 25.4 170.4 -0.6 -7.5 413 F 1 11568 Source only 8.4 degrees from the Sun. Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 16 44 09 1830-211 17 56 32 25.4 170.4 -0.6 -7.5 -6 1 3 11568 16 44 09 16 59 06 --- 18 11 32 25.8 174.2 -0.4 -4.5 892 F 1 17552 Source only 8.4 degrees from the Sun. Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 16 59 06 1830-211 18 11 32 25.8 174.2 -0.4 -4.5 -6 1 4 17552 16 59 06 17 21 03 --- 18 33 32 26.0 179.9 0.0 -0.1 1310 R 1 8776 Source only 8.4 degrees from the Sun. Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 17 23 32 J1751+0939 18 36 02 55.3 199.5 0.7 14.3 85 1 4 8776 17 23 32 17 27 32 =1749+096 18 40 02 55.1 201.2 0.8 15.5 239 R 1 7180 17 27 32 1830-211 18 40 02 26.0 181.6 0.1 1.3 -64 1 4 7180 17 27 32 17 31 31 --- 18 44 02 26.0 182.7 0.2 2.1 175 R 1 5585 Source only 8.4 degrees from the Sun. Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 17 31 31 1830-211 18 44 02 26.0 182.7 0.2 2.1 -6 1 4 5585 17 31 31 17 41 29 --- 18 54 02 25.8 185.2 0.3 4.1 592 R 1 1596 Source only 8.4 degrees from the Sun. Schedule for VLBA_HN (Code Hn ) Page 5 Monitoring the Gravitational Lens PKS 1830-211 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) ---------------------------------------------------------------------------------------- --- Sat 21 Dec 2002 Day 355 --- 17 41 29 J1751+0939 18 54 02 54.0 206.8 1.0 19.6 -62 1 4 1596 17 41 29 17 45 29 =1749+096 18 58 02 53.7 208.4 1.1 20.7 177 R 1 0 Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 17 45 29 J1751+0939 18 58 02 53.7 208.4 1.1 20.7 -6 1 5 0 17 45 29 17 49 28 =1749+096 19 02 02 53.3 209.9 1.2 21.8 233 F 1 1596 17 49 28 1830-211 19 02 02 25.7 187.3 0.5 5.7 -61 1 5 1596 17 49 28 18 07 25 --- 19 20 02 25.1 191.9 0.8 9.3 1016 F 1 8776 Source only 8.4 degrees from the Sun. Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 18 07 25 1830-211 19 20 02 25.1 191.9 0.8 9.3 -6 1 5 8776 18 07 25 18 14 24 --- 19 27 02 24.8 193.7 0.9 10.7 413 F 1 11568 Source only 8.4 degrees from the Sun. Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 18 14 24 1830-211 19 27 02 24.8 193.7 0.9 10.7 -6 1 5 11568 18 14 24 18 19 23 --- 19 32 02 24.6 195.0 1.0 11.7 293 F 1 13563 Source only 8.4 degrees from the Sun. 18 19 23 1830-211 19 32 02 24.6 195.0 1.0 11.7 -6 1 5 13563 18 19 23 18 29 22 --- 19 42 02 24.1 197.5 1.1 13.6 592 F 1 17552 Source only 8.4 degrees from the Sun. Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 18 29 22 1830-211 19 42 02 24.1 197.5 1.1 13.6 -6 1 6 17552 18 29 22 18 51 18 --- 20 04 02 22.7 202.8 1.5 17.7 1310 R 1 8776 Source only 8.4 degrees from the Sun. Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 18 51 18 1830-211 20 04 02 22.7 202.8 1.5 17.7 -6 1 6 8776 18 51 18 18 53 18 --- 20 06 02 22.6 203.3 1.5 18.1 114 R 1 7978 Source only 8.4 degrees from the Sun. Schedule for VLBA_HN (Code Hn ) Page 6 Monitoring the Gravitational Lens PKS 1830-211 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) ---------------------------------------------------------------------------------------- --- Sat 21 Dec 2002 Day 355 --- Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 18 53 18 1830-211 20 06 02 22.6 203.3 1.5 18.1 -6 1 6 7978 18 53 18 18 57 17 --- 20 10 02 22.3 204.3 1.6 18.8 233 R 1 6383 Source only 8.4 degrees from the Sun. Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 18 57 17 1830-211 20 10 02 22.3 204.3 1.6 18.8 -6 1 6 6383 18 57 17 19 05 16 --- 20 18 02 21.7 206.2 1.7 20.2 473 R 1 3191 Source only 8.4 degrees from the Sun. 19 07 45 3C345 20 20 32 49.8 284.7 3.6 67.2 87 1 6 3191 19 07 45 19 11 45 --- 20 24 32 49.1 285.2 3.7 66.9 239 R 1 1596 Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 19 11 45 3C345 20 24 32 49.1 285.2 3.7 66.9 -6 1 6 1596 19 11 45 19 14 44 --- 20 27 32 48.6 285.5 3.7 66.7 174 R 1 399 Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 19 14 44 3C345 20 27 32 48.6 285.5 3.7 66.7 -6 1 7 399 19 14 44 19 17 44 --- 20 30 32 48.0 285.9 3.8 66.5 174 F 1 1596 19 20 13 J1751+0939 20 33 02 41.6 238.6 2.7 39.4 112 1 7 1596 19 20 13 19 24 13 =1749+096 20 37 02 41.0 239.6 2.8 39.9 239 F 1 3191 19 24 13 1830-211 20 37 02 20.0 210.6 2.1 23.5 -48 1 7 3191 19 24 13 19 28 12 --- 20 41 02 19.6 211.5 2.1 24.2 191 F 1 4787 Source only 8.4 degrees from the Sun. Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 19 28 12 1830-211 20 41 02 19.6 211.5 2.1 24.2 -6 1 7 4787 19 28 12 19 38 10 --- 20 51 02 18.6 213.7 2.3 25.8 592 F 1 8776 Source only 8.4 degrees from the Sun. Schedule for VLBA_HN (Code Hn ) Page 7 Monitoring the Gravitational Lens PKS 1830-211 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) ---------------------------------------------------------------------------------------- --- Sat 21 Dec 2002 Day 355 --- 19 38 10 J1751+0939 20 51 02 38.8 243.1 3.0 41.5 -46 1 7 8776 19 38 10 19 42 10 =1749+096 20 55 02 38.1 244.0 3.1 41.9 193 F 1 10372 Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 19 42 10 J1751+0939 20 55 02 38.1 244.0 3.1 41.9 -6 1 7 10372 19 42 10 19 46 09 =1749+096 20 59 02 37.4 244.9 3.1 42.3 233 F 1 11967 19 46 09 1830-211 20 59 02 17.8 215.5 2.4 27.1 -45 1 8 11967 19 46 09 20 04 06 --- 21 17 02 15.8 219.3 2.7 29.8 1032 R 1 16052 Source only 8.4 degrees from the Sun. Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 20 04 06 1830-211 21 17 02 15.8 219.3 2.7 29.8 -6 1 8 16052 20 04 06 20 11 05 --- 21 24 02 15.0 220.8 2.8 30.8 413 R 1 13260 Source only 8.4 degrees from the Sun. Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 20 11 05 1830-211 21 24 02 15.0 220.8 2.8 30.8 -6 1 8 13260 20 11 05 20 26 02 --- 21 39 02 13.1 223.9 3.1 32.9 892 R 1 7276 Source only 8.4 degrees from the Sun. Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 20 26 02 1830-211 21 39 02 13.1 223.9 3.1 32.9 -6 1 9 7276 20 26 02 20 47 59 --- 22 01 02 10.2 228.2 3.5 35.8 1310 F 1 1500 Source only 8.4 degrees from the Sun. Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 20 50 28 J1751+0939 22 03 32 26.2 258.3 4.2 46.6 112 1 9 1500 20 50 28 20 54 28 =1749+096 22 07 32 25.5 259.0 4.3 46.8 239 F 1 3095 Schedule for VLBA_HN (Code Hn ) Page 8 Monitoring the Gravitational Lens PKS 1830-211 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) ---------------------------------------------------------------------------------------- --- Sat 21 Dec 2002 Day 355 --- Next scan frequencies: 15357.49 15357.49 15365.49 15365.49 Next BBC frequencies: 757.49 757.49 765.49 765.49 21 08 25 J1751+0939 22 21 32 23.0 261.6 4.5 47.3 827 1 9 3095 21 08 25 21 12 25 =1749+096 22 25 32 22.3 262.3 4.6 47.4 239 F 1 4691 Next scan frequencies: 22225.49 22225.49 22233.49 22233.49 Next BBC frequencies: 725.49 725.49 733.49 733.49 21 12 25 J1751+0939 22 25 32 22.3 262.3 4.6 47.4 -6 1 9 4691 21 12 25 21 16 24 =1749+096 22 29 32 21.5 263.0 4.6 47.5 233 F 1 6286 Next scan frequencies: 8413.49 8413.49 8421.49 8421.49 Next BBC frequencies: 813.49 813.49 821.49 821.49 22 20 44 J1751+0939 23 34 02 9.8 274.1 5.7 47.8 3830 1 9 6286 22 20 44 22 24 43 =1749+096 23 38 02 9.0 274.8 5.8 47.7 239 F 1 7882 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v1cm-128-4-2.set Matches group v1cm_b3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 21500.00 21500.00 21500.00 21500.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = B D B D VLBA FE= omit 1cm omit 1cm VLBA Synth= 9.1 15.4 12.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 22225.49 22225.49 22233.49 22233.49 BBC fr= 725.49 725.49 733.49 733.49 Bandwd= 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 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto Setup file: /home/filehost/cwalker/sched/setups/v2cm-128-4-2.set Matches group v2cm_d3 in /home/filehost/cwalker/sched/catalogs/freq.dat Fourth 2cm filter Setup group: 2 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 14600.00 14600.00 14600.00 14600.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = 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: 2 Setup file default. Used pcal sets: 1 LO sum= 15357.49 15357.49 15365.49 15365.49 BBC fr= 757.49 757.49 765.49 765.49 Bandwd= 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 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto Setup file: /home/filehost/cwalker/sched/setups/v4cm-128-4-2.set Matches group v4cm_3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 3 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 7600.00 7600.00 7600.00 7600.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = B D B D VLBA FE= omit 4cm omit 4cm VLBA Synth= 7.6 15.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 3 Setup file default. Used pcal sets: 1 LO sum= 8413.49 8413.49 8421.49 8421.49 BBC fr= 813.49 813.49 821.49 821.49 Bandwd= 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 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- Monitoring the Gravitational Lens PKS 1830-211 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) * 1830-211 18 30 40.616786 * 18 33 39.906585 18 33 47.979435 -21 06 00.44358 *-21 03 40.21383 -21 03 36.34097 From catalog imbedded in main SCHED input file. * 3C345 16 41 17.606162 * 16 42 58.809900 16 43 02.534105 39 54 10.81394 * 39 48 36.99300 39 48 12.38179 From catalog imbedded in main SCHED input file. * J1751+0939 17 49 10.387930 * 17 51 32.818573 17 51 38.983895 1749+096 09 39 42.82582 * 09 39 00.72837 09 38 55.81534 J1751+09 From catalog imbedded in main SCHED input file. USNO - Ref Frame 1998-6, Eubanks June 1998 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) 1830-211 8.4 3C345 65.7 J1751+0939 33.1 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