COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: Multi-frequency phase-ref. observations of NGC6240 Exp. Code: EH023B Schedule Version: 2.00 Processed by SCHED version: 8.10 Bug fixs and minor enhancements PI: Yoshiaki Hagiwara Address: NAOJ Osawa 2-21-1 Mitaka Tokyo, 181-8588 Japan Phone: +81-422-34-3590 EMAIL: yoshiaki.hagiwara@nao.ac.jp Fax: +81-422-34-3869 Phone during observation: +81-422-34-3590 Observing mode: Phase-referencing of a source at S/X (512 Mb/s) Notes: Schedule for SHANGHAI (Code Sh ) Page 2 Multi-frequency phase-ref. observations of NGC6240 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Wed 17 Jun 2009 Day 168 --- Next scan frequencies: 2248.99 2248.99 2264.99 2264.99 2280.99 2280.99 2296.99 2296.99 8360.99 8360.99 8376.99 8376.99 8392.99 8392.99 8408.99 8408.99 Next BBC frequencies: 648.99 648.99 664.99 664.99 680.99 680.99 696.99 696.99 739.01 739.01 723.01 723.01 707.01 707.01 691.01 691.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 17 30 00 3C345 19 19 11 57.4 -63.6 2.6 93.1 0 1 1 0 17 30 00 17 35 00 --- 19 24 12 56.4 -63.7 2.7 92.2 300 F 1 19 17 30 01 17 40 05 J1651+0129 19 29 18 42.4 239.3 2.6 47.4 0 1 1 19 17 40 05 17 41 35 =1648+015 19 30 48 42.1 239.7 2.7 47.7 90 F 1 25 17 40 06 17 41 35 NGC6240 19 30 48 43.1 240.1 2.6 48.0 -4 1 1 25 No stop 17 45 05 --- 19 34 19 42.4 240.9 2.7 48.5 206 F 1 39 17 41 36 17 45 05 J1651+0129 19 34 19 41.5 240.4 2.7 48.2 -4 1 1 39 No stop 17 46 35 =1648+015 19 35 49 41.2 240.8 2.7 48.4 86 F 1 45 17 45 06 17 46 35 NGC6240 19 35 49 42.2 241.3 2.7 48.7 -4 1 1 45 No stop 17 50 05 --- 19 39 20 41.5 242.0 2.8 49.2 206 F 1 58 17 46 36 17 50 35 J1651+0129 19 39 50 40.4 241.7 2.8 48.9 26 1 1 58 17 50 35 17 52 05 =1648+015 19 41 20 40.2 242.0 2.8 49.1 90 F 1 64 17 50 36 17 52 05 NGC6240 19 41 20 41.1 242.5 2.8 49.5 -4 1 1 64 No stop 17 55 35 --- 19 44 51 40.5 243.2 2.9 49.9 206 F 1 77 17 52 06 17 55 35 J1651+0129 19 44 51 39.5 242.7 2.9 49.6 -4 1 1 77 No stop 17 57 05 =1648+015 19 46 21 39.2 243.0 2.9 49.8 86 F 1 83 17 55 36 17 57 05 NGC6240 19 46 21 40.2 243.5 2.9 50.1 -4 1 1 83 No stop 18 00 35 --- 19 49 52 39.5 244.3 2.9 50.5 206 F 1 97 17 57 06 18 01 05 J1651+0129 19 50 22 38.4 243.9 3.0 50.3 26 1 1 97 18 01 05 18 02 35 =1648+015 19 51 52 38.2 244.2 3.0 50.4 90 F 1 103 18 01 06 18 02 35 NGC6240 19 51 52 39.1 244.7 3.0 50.8 -4 1 1 103 No stop 18 06 05 --- 19 55 22 38.4 245.4 3.0 51.2 206 F 1 116 18 02 36 Schedule for SHANGHAI (Code Sh ) Page 3 Multi-frequency phase-ref. observations of NGC6240 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Wed 17 Jun 2009 Day 168 --- 18 06 05 J1651+0129 19 55 22 37.5 244.9 3.1 50.8 -4 1 1 116 No stop 18 07 35 =1648+015 19 56 53 37.2 245.2 3.1 51.0 86 F 1 122 18 06 06 18 07 35 NGC6240 19 56 53 38.1 245.7 3.1 51.4 -4 1 1 122 No stop 18 11 05 --- 20 00 23 37.4 246.4 3.1 51.7 206 F 1 135 18 07 36 18 11 35 J1651+0129 20 00 53 36.4 246.0 3.2 51.5 26 1 1 135 18 11 35 18 13 05 =1648+015 20 02 24 36.1 246.2 3.2 51.6 90 F 1 141 18 11 36 18 13 05 NGC6240 20 02 24 37.0 246.8 3.1 52.0 -4 1 1 141 No stop 18 16 35 --- 20 05 54 36.4 247.4 3.2 52.3 206 F 1 155 18 13 06 18 16 35 J1651+0129 20 05 54 35.4 246.9 3.2 52.0 -4 1 1 155 No stop 18 18 05 =1648+015 20 07 24 35.1 247.2 3.3 52.1 86 F 1 161 18 16 36 18 18 05 NGC6240 20 07 24 36.1 247.7 3.2 52.5 -4 1 1 161 No stop 18 21 35 --- 20 10 55 35.4 248.4 3.3 52.8 206 F 1 174 18 18 06 18 22 05 J1651+0129 20 11 25 34.3 247.9 3.3 52.5 26 1 1 174 18 22 05 18 23 35 =1648+015 20 12 55 34.0 248.2 3.4 52.7 90 F 1 180 18 22 06 18 23 35 NGC6240 20 12 55 35.0 248.7 3.3 53.0 -4 1 1 180 No stop 18 27 05 --- 20 16 26 34.3 249.4 3.4 53.3 206 F 1 194 18 23 36 18 27 05 J1651+0129 20 16 26 33.3 248.9 3.4 53.0 -4 1 1 194 No stop 18 28 35 =1648+015 20 17 56 33.0 249.1 3.4 53.2 86 F 1 199 18 27 06 18 28 35 NGC6240 20 17 56 34.0 249.7 3.4 53.5 -4 1 1 199 No stop 18 32 05 --- 20 21 27 33.3 250.3 3.5 53.8 206 F 1 213 18 28 36 18 32 35 J1651+0129 20 21 57 32.2 249.8 3.5 53.5 26 1 1 213 18 32 35 18 34 05 =1648+015 20 23 27 31.9 250.1 3.5 53.6 90 F 1 219 18 32 36 18 34 05 NGC6240 20 23 27 32.8 250.6 3.5 54.0 -4 1 1 219 No stop 18 37 35 --- 20 26 58 32.1 251.2 3.6 54.2 206 F 1 232 18 34 06 18 37 35 J1651+0129 20 26 58 31.2 250.7 3.6 53.9 -4 1 1 232 No stop 18 39 05 =1648+015 20 28 28 30.9 251.0 3.6 54.1 86 F 1 238 18 37 36 18 39 05 NGC6240 20 28 28 31.8 251.5 3.6 54.4 -4 1 1 238 No stop 18 42 35 --- 20 31 58 31.1 252.1 3.6 54.6 206 F 1 252 18 39 06 18 43 05 J1651+0129 20 32 29 30.1 251.6 3.7 54.4 26 1 1 252 18 43 05 18 44 35 =1648+015 20 33 59 29.8 251.9 3.7 54.5 90 F 1 257 18 43 06 Schedule for SHANGHAI (Code Sh ) Page 4 Multi-frequency phase-ref. observations of NGC6240 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Wed 17 Jun 2009 Day 168 --- 18 44 35 NGC6240 20 33 59 30.7 252.4 3.7 54.8 -4 1 1 257 No stop 18 48 05 --- 20 37 29 30.0 253.0 3.7 55.0 206 F 1 271 18 44 36 18 48 05 J1651+0129 20 37 29 29.1 252.5 3.8 54.8 -4 1 1 271 No stop 18 49 35 =1648+015 20 39 00 28.8 252.7 3.8 54.9 86 F 1 277 18 48 06 18 49 35 NGC6240 20 39 00 29.7 253.3 3.8 55.2 -4 1 1 277 No stop 18 53 05 --- 20 42 30 29.0 253.8 3.8 55.4 206 F 1 290 18 49 36 18 53 35 J1651+0129 20 43 00 27.9 253.4 3.9 55.2 26 1 1 290 18 53 35 18 55 05 =1648+015 20 44 30 27.6 253.6 3.9 55.3 90 F 1 296 18 53 36 18 55 05 NGC6240 20 44 30 28.6 254.2 3.9 55.5 -4 1 1 296 No stop 18 58 35 --- 20 48 01 27.8 254.7 3.9 55.8 206 F 1 310 18 55 06 18 58 35 J1651+0129 20 48 01 26.9 254.2 3.9 55.5 -4 1 1 310 No stop 19 00 05 =1648+015 20 49 31 26.6 254.4 4.0 55.6 86 F 1 315 18 58 36 19 00 05 NGC6240 20 49 31 27.5 255.0 3.9 55.9 -4 1 1 315 No stop 19 03 35 --- 20 53 02 26.8 255.5 4.0 56.1 206 F 1 329 19 00 06 19 04 05 J1651+0129 20 53 32 25.8 255.0 4.0 55.8 26 1 1 329 19 04 05 19 05 35 =1648+015 20 55 02 25.5 255.3 4.1 55.9 90 F 1 335 19 04 06 19 05 35 NGC6240 20 55 02 26.4 255.8 4.0 56.2 -4 1 1 335 No stop 19 09 05 --- 20 58 33 25.6 256.4 4.1 56.4 206 F 1 348 19 05 36 19 09 05 J1651+0129 20 58 33 24.7 255.8 4.1 56.1 -4 1 1 348 No stop 19 10 35 =1648+015 21 00 03 24.4 256.1 4.1 56.2 86 F 1 354 19 09 06 19 10 35 NGC6240 21 00 03 25.3 256.6 4.1 56.5 -4 1 1 354 No stop 19 14 05 --- 21 03 34 24.6 257.1 4.2 56.7 206 F 1 368 19 10 36 19 14 35 J1651+0129 21 04 04 23.6 256.7 4.2 56.5 26 1 1 368 19 14 35 19 16 05 =1648+015 21 05 34 23.3 256.9 4.2 56.5 90 F 1 374 19 14 36 19 16 05 NGC6240 21 05 34 24.2 257.4 4.2 56.8 -4 1 1 374 No stop 19 19 35 --- 21 09 05 23.4 258.0 4.3 56.9 206 F 1 387 19 16 06 19 19 35 J1651+0129 21 09 05 22.5 257.4 4.3 56.7 -4 1 1 387 No stop 19 21 05 =1648+015 21 10 35 22.2 257.6 4.3 56.8 86 F 1 393 19 19 36 19 21 05 NGC6240 21 10 35 23.1 258.2 4.3 57.0 -3 1 1 393 No stop 19 24 35 --- 21 14 05 22.4 258.7 4.3 57.2 207 F 1 406 19 21 06 Schedule for SHANGHAI (Code Sh ) Page 5 Multi-frequency phase-ref. observations of NGC6240 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Wed 17 Jun 2009 Day 168 --- 19 25 05 J1651+0129 21 14 35 21.4 258.2 4.4 57.0 26 1 1 406 19 25 05 19 26 35 =1648+015 21 16 06 21.1 258.4 4.4 57.1 90 F 1 412 19 25 06 19 26 35 NGC6240 21 16 06 22.0 259.0 4.4 57.3 -3 1 1 412 No stop 19 30 05 --- 21 19 36 21.2 259.5 4.4 57.4 207 F 1 426 19 26 36 19 30 05 J1651+0129 21 19 36 20.3 259.0 4.5 57.2 -3 1 1 426 No stop 19 31 35 =1648+015 21 21 06 20.0 259.2 4.5 57.3 87 F 1 432 19 30 06 19 31 35 NGC6240 21 21 06 20.9 259.7 4.5 57.5 -3 1 1 432 No stop 19 35 05 --- 21 24 37 20.2 260.2 4.5 57.6 207 F 1 445 19 31 36 19 35 35 J1651+0129 21 25 07 19.2 259.7 4.6 57.4 26 1 1 445 19 35 35 19 37 05 =1648+015 21 26 37 18.9 260.0 4.6 57.5 90 F 1 451 19 35 36 19 37 05 NGC6240 21 26 37 19.8 260.5 4.6 57.7 -3 1 1 451 No stop 19 40 35 --- 21 30 08 19.0 261.0 4.6 57.8 207 F 1 464 19 37 06 19 40 35 J1651+0129 21 30 08 18.1 260.5 4.6 57.6 -3 1 1 464 No stop 19 42 05 =1648+015 21 31 38 17.8 260.7 4.7 57.7 87 F 1 470 19 40 36 19 42 05 NGC6240 21 31 38 18.7 261.2 4.6 57.9 -3 1 1 470 No stop 19 45 35 --- 21 35 09 18.0 261.7 4.7 58.0 207 F 1 484 19 42 06 19 46 05 J1651+0129 21 35 39 17.0 261.2 4.7 57.8 26 1 1 484 19 46 05 19 47 35 =1648+015 21 37 09 16.6 261.4 4.8 57.9 90 F 1 490 19 46 06 19 47 35 NGC6240 21 37 09 17.5 262.0 4.7 58.1 -3 1 1 490 No stop 19 51 05 --- 21 40 40 16.8 262.5 4.8 58.2 207 F 1 503 19 47 36 19 51 05 J1651+0129 21 40 40 15.9 261.9 4.8 58.0 -3 1 1 503 No stop 19 52 35 =1648+015 21 42 10 15.6 262.1 4.8 58.0 87 F 1 509 19 51 06 19 52 35 NGC6240 21 42 10 16.5 262.7 4.8 58.2 -3 1 1 509 No stop 19 56 05 --- 21 45 41 15.7 263.1 4.9 58.3 207 F 1 523 19 52 36 19 56 35 J1651+0129 21 46 11 14.7 262.7 4.9 58.2 26 1 1 523 19 56 35 19 58 05 =1648+015 21 47 41 14.4 262.9 4.9 58.2 90 F 1 528 19 56 36 19 58 05 NGC6240 21 47 41 15.3 263.4 4.9 58.4 -3 1 1 528 No stop 20 01 35 --- 21 51 11 14.5 263.9 5.0 58.4 207 F 1 542 19 58 06 20 01 35 J1651+0129 21 51 11 13.7 263.4 5.0 58.3 -3 1 1 542 No stop 20 03 05 =1648+015 21 52 42 13.3 263.6 5.0 58.3 87 F 1 548 20 01 36 Schedule for SHANGHAI (Code Sh ) Page 6 Multi-frequency phase-ref. observations of NGC6240 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Wed 17 Jun 2009 Day 168 --- 20 03 05 NGC6240 21 52 42 14.2 264.1 5.0 58.5 -3 1 1 548 No stop 20 06 35 --- 21 56 12 13.5 264.6 5.0 58.6 207 F 1 561 20 03 06 20 07 05 J1651+0129 21 56 42 12.5 264.1 5.1 58.4 26 1 1 561 20 07 05 20 08 35 =1648+015 21 58 13 12.2 264.3 5.1 58.5 90 F 1 567 20 07 06 20 08 35 NGC6240 21 58 13 13.1 264.8 5.1 58.6 -3 1 1 567 No stop 20 12 05 --- 22 01 43 12.3 265.3 5.1 58.7 207 F 1 581 20 08 36 20 12 05 J1651+0129 22 01 43 11.4 264.8 5.2 58.5 -3 1 1 581 No stop 20 13 35 =1648+015 22 03 13 11.1 265.0 5.2 58.6 87 F 1 586 20 12 06 20 13 35 NGC6240 22 03 13 12.0 265.5 5.2 58.7 -3 1 1 586 No stop 20 17 05 --- 22 06 44 11.2 266.0 5.2 58.7 207 F 1 600 20 13 36 20 17 35 J1651+0129 22 07 14 10.2 265.5 5.3 58.6 26 1 1 600 20 17 35 20 19 05 =1648+015 22 08 44 9.9 265.7 5.3 58.7 90 F 1 606 20 17 36 20 19 05 NGC6240 22 08 44 10.8 266.2 5.3 58.8 -3 1 1 606 No stop 20 22 35 --- 22 12 15 10.1 266.7 5.3 58.8 207 F 1 619 20 19 06 20 22 35 J1651+0129 22 12 15 9.2 266.2 5.3 58.7 -3 1 1 619 No stop 20 24 05 =1648+015 22 13 45 8.9 266.4 5.4 58.7 87 F 1 625 20 22 36 20 24 05 NGC6240 22 13 45 9.7 266.9 5.3 58.8 -3 1 1 625 No stop 20 27 35 --- 22 17 16 9.0 267.4 5.4 58.9 207 F 1 639 20 24 06 20 28 05 J1651+0129 22 17 46 8.0 266.9 5.4 58.8 26 1 1 639 20 28 05 20 29 35 =1648+015 22 19 16 7.7 267.1 5.5 58.8 90 F 1 644 20 28 06 20 29 35 NGC6240 22 19 16 8.6 267.6 5.4 58.9 -3 1 1 644 No stop 20 33 05 --- 22 22 47 7.8 268.1 5.5 58.9 207 F 1 658 20 29 36 20 33 05 J1651+0129 22 22 47 6.9 267.5 5.5 58.8 -3 1 1 658 No stop 20 34 35 =1648+015 22 24 17 6.6 267.7 5.5 58.9 87 F 1 664 20 33 06 20 34 35 NGC6240 22 24 17 7.5 268.3 5.5 58.9 -3 1 1 664 No stop 20 38 05 --- 22 27 47 6.7 268.7 5.6 59.0 207 F 1 677 20 34 36 20 38 35 J1651+0129 22 28 17 5.7 268.3 5.6 58.9 26 1 1 677 20 38 35 20 40 05 =1648+015 22 29 48 5.4 268.4 5.6 58.9 90 F 1 683 20 38 36 20 42 40 3C345 22 32 23 21.2 304.6 5.8 66.6 117 1 1 683 20 42 40 20 47 40 --- 22 37 24 20.3 305.0 5.9 65.9 300 F 1 703 20 42 41 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: eh023b.sx --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 8 Station: SHANGHAI Total bit rate: 512 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 Speedup factor: 1.00 Disk used to record data. 1st LO= 1600.00 1600.00 1600.00 1600.00 1600.00 1600.00 1600.00 1600.00 9100.00 9100.00 9100.00 9100.00 9100.00 9100.00 9100.00 9100.00 Net SB= L U L U L U L U L U L U L U L U Pol. = RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP BBC = 9 9 10 10 11 11 12 12 1 1 2 2 3 3 4 4 BBC SB= L U L U L U L U U L U L U L U L IF = B B B B B B B B A A A A A A A A The following frequency sets based on this setup were used. Frequency Set: 8 Setup file default. Used pcal sets: 1 LO sum= 2248.99 2248.99 2264.99 2264.99 2280.99 2280.99 2296.99 2296.99 8360.99 8360.99 8376.99 8376.99 8392.99 8392.99 8408.99 8408.99 BBC fr= 648.99 648.99 664.99 664.99 680.99 680.99 696.99 696.99 739.01 739.01 723.01 723.01 707.01 707.01 691.01 691.01 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 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 S9 S11 S13 S15 PCALXB2= S2 S4 S6 S8 S10 S12 S14 S16 PCALFR1= 990 990 990 990 990 990 990 990 PCALFR2= 10 10 10 10 10 10 10 10 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off SOURCE LIST -- Multi-frequency phase-ref. observations of NGC6240 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). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * NGC6240 16 50 27.828434 * 16 52 58.890300 16 53 29.627078 0.00 02 28 57.45831 * 02 24 03.33920 02 23 02.69782 0.00 From catalog imbedded in main SCHED input file. 5.833 scan hours, 113.085 baseline hours above horizon. * J1651+0129 16 48 31.580217 * 16 51 03.662000 16 51 34.593429 0.00 1648+015 01 34 25.63222 * 01 29 23.45800 01 28 21.19464 0.00 J1651+01 From catalog imbedded in main SCHED input file. 680 mJy at X-band 2.575 scan hours, 48.976 baseline hours above horizon. J1642+3948 16 41 17.606227 * 16 42 58.809964 16 43 20.281970 0.26 * 3C345 39 54 10.81495 * 39 48 36.99401 39 47 31.68662 0.40 1641+399 /home/hagiwara/tools/sched/catalogs/sources.vlba J1642+39 VLBA Calib Survey - GSFC sols. - created L.Petrov 2008a_astro 0.333 scan hours, 7.667 baseline hours above horizon. 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) NGC6240 151.2 J1651+0129 151.8 3C345 115.1 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