COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: EVN-MERLIN-18CM-0836+710 Exp. Code: EL034 Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Andrei Lobanov Address: Max-Planck-Institut fuer Radioastronomie Auf dem Huegel 69 53121 Bonn Germany Phone: +49 228 525 191 EMAIL: alobanov@mpifr-bonn.mpg.de Fax: +49 228 525 229 Phone during observation: Observing mode: Continuum Notes: Schedule for SHANGHAI (Code Sh ) Page 2 EVN-MERLIN-18CM-0836+710 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 ---------------------------------------------------------------------------------------- --- Tue 13 Mar 2007 Day 72 --- Next scan frequencies: 1634.49 1634.49 1634.49 1634.49 1650.49 1650.49 1650.49 1650.49 1666.49 1666.49 1666.49 1666.49 1682.49 1682.49 1682.49 1682.49 Next BBC frequencies: 665.51 665.51 665.51 665.51 649.51 649.51 649.51 649.51 633.51 633.51 633.51 633.51 617.51 617.51 617.51 617.51 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 14 30 00 0836+710 09 58 11 48.9 -9.3 1.3 154.9 0 1 1 0 14 30 00 14 40 00 --- 10 08 12 48.5 -10.4 1.4 151.7 600 F 1 39 14 30 01 14 40 15 0836+710 10 08 27 48.5 -10.5 1.4 151.6 13 1 1 39 14 40 15 14 50 00 --- 10 18 14 48.1 -11.5 1.6 148.6 585 F 1 76 14 40 16 14 50 15 0836+710 10 18 29 48.1 -11.5 1.6 148.5 13 1 1 76 14 50 15 15 00 00 --- 10 28 16 47.7 -12.5 1.8 145.4 585 F 1 114 14 50 16 15 00 15 0836+710 10 28 31 47.6 -12.6 1.8 145.3 13 1 1 114 15 00 15 15 10 00 --- 10 38 17 47.2 -13.5 1.9 142.3 585 F 1 152 15 00 16 15 10 15 0836+710 10 38 32 47.2 -13.5 1.9 142.3 13 1 1 152 15 10 15 15 20 00 --- 10 48 19 46.6 -14.5 2.1 139.3 585 F 1 190 15 10 16 15 21 00 0859+681 10 49 19 50.1 -15.0 1.7 143.9 52 1 1 190 15 21 00 15 29 00 --- 10 57 20 49.7 -15.9 1.9 141.3 480 F 1 221 15 21 01 15 29 15 0836+710 10 57 35 46.1 -15.3 2.3 136.5 7 1 1 221 15 29 15 15 39 00 --- 11 07 22 45.6 -16.1 2.4 133.6 585 F 1 258 15 29 16 15 39 15 0836+710 11 07 37 45.6 -16.1 2.4 133.5 13 1 1 258 15 39 15 15 49 00 --- 11 17 24 45.0 -16.9 2.6 130.7 585 F 1 296 15 39 16 15 50 00 0859+681 11 18 24 48.3 -18.2 2.2 134.8 52 1 1 296 15 50 00 15 58 00 --- 11 26 25 47.8 -18.9 2.4 132.3 480 F 1 327 15 50 01 16 03 00 4C39.25 11 31 26 63.6 -64.0 2.1 97.8 253 1 1 327 16 03 00 16 11 00 --- 11 39 27 62.0 -64.4 2.2 96.2 480 F 1 358 16 03 01 16 17 00 0836+710 11 45 28 43.1 -18.8 3.1 122.7 312 1 1 358 16 17 00 16 24 00 --- 11 52 29 42.6 -19.2 3.2 120.8 420 F 1 385 16 17 01 Schedule for SHANGHAI (Code Sh ) Page 3 EVN-MERLIN-18CM-0836+710 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 ---------------------------------------------------------------------------------------- --- Tue 13 Mar 2007 Day 72 --- 16 24 15 0836+710 11 52 44 42.6 -19.2 3.2 120.7 13 1 1 385 16 24 15 16 34 00 --- 12 02 31 41.9 -19.7 3.3 118.1 585 F 1 423 16 24 16 16 35 00 0859+681 12 03 31 45.0 -22.0 3.0 121.5 53 1 1 423 16 35 00 16 43 00 --- 12 11 32 44.4 -22.5 3.1 119.3 480 F 1 454 16 35 01 16 44 00 0836+710 12 12 33 41.2 -20.2 3.5 115.4 53 1 1 454 16 44 00 16 52 00 --- 12 20 34 40.6 -20.6 3.6 113.2 480 F 1 485 16 44 01 16 52 15 0836+710 12 20 49 40.6 -20.6 3.6 113.2 13 1 1 485 16 52 15 17 02 00 --- 12 30 36 39.8 -21.0 3.8 110.6 585 F 1 523 16 52 16 17 03 00 0859+681 12 31 36 42.7 -23.7 3.4 113.8 53 1 1 523 17 03 00 17 11 00 --- 12 39 37 42.0 -24.1 3.6 111.7 480 F 1 554 17 03 01 17 12 00 0836+710 12 40 37 39.0 -21.3 4.0 108.0 53 1 1 554 17 12 00 17 21 00 --- 12 49 39 38.3 -21.6 4.1 105.7 540 F 1 588 17 12 01 17 21 15 0836+710 12 49 54 38.3 -21.6 4.1 105.6 13 1 1 588 17 21 15 17 31 00 --- 12 59 40 37.5 -21.9 4.3 103.2 585 F 1 626 17 21 16 17 32 00 0859+681 13 00 41 40.1 -24.9 3.9 106.3 54 1 1 626 17 32 00 17 40 00 --- 13 08 42 39.4 -25.2 4.1 104.3 480 F 1 657 17 32 01 17 41 00 0836+710 13 09 42 36.7 -22.1 4.5 100.7 54 1 1 657 17 41 00 17 50 00 --- 13 18 43 36.0 -22.2 4.6 98.5 540 F 1 692 17 41 01 17 50 15 0836+710 13 18 59 36.0 -22.2 4.6 98.4 13 1 1 692 17 50 15 18 00 00 --- 13 28 45 35.2 -22.4 4.8 96.0 585 F 1 730 17 50 16 18 01 00 0859+681 13 29 45 37.4 -25.7 4.4 99.1 54 1 1 730 18 01 00 18 09 00 --- 13 37 47 36.7 -25.8 4.6 97.1 480 F 1 761 18 01 01 18 10 00 0836+710 13 38 47 34.4 -22.5 4.9 93.6 54 1 1 761 18 10 00 18 19 00 --- 13 47 48 33.6 -22.5 5.1 91.4 540 F 1 795 18 10 01 18 19 15 0836+710 13 48 03 33.6 -22.5 5.1 91.4 13 1 1 795 18 19 15 18 29 00 --- 13 57 50 32.8 -22.5 5.3 89.1 585 F 1 833 18 19 16 18 30 00 0859+681 13 58 50 34.7 -26.0 4.9 92.1 54 1 1 833 18 30 00 18 38 00 --- 14 06 51 34.0 -26.0 5.0 90.3 480 F 1 864 18 30 01 18 39 00 0836+710 14 07 52 32.0 -22.5 5.4 86.7 54 1 1 864 18 39 00 18 48 00 --- 14 16 53 31.3 -22.4 5.6 84.6 540 F 1 899 18 39 01 Schedule for SHANGHAI (Code Sh ) Page 4 EVN-MERLIN-18CM-0836+710 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 ---------------------------------------------------------------------------------------- --- Tue 13 Mar 2007 Day 72 --- 18 48 15 0836+710 14 17 08 31.2 -22.4 5.6 84.6 13 1 1 899 18 48 15 18 58 00 --- 14 26 55 30.4 -22.3 5.7 82.3 585 F 1 937 18 48 16 18 59 00 0859+681 14 27 55 32.0 -25.9 5.4 85.4 54 1 1 937 18 59 00 19 07 00 --- 14 35 56 31.3 -25.9 5.5 83.6 480 F 1 968 18 59 01 19 08 00 0836+710 14 36 56 29.6 -22.1 5.9 80.0 54 1 1 968 19 08 00 19 17 00 --- 14 45 58 28.9 -22.0 6.1 78.0 540 F 1 1003 19 08 01 19 17 15 0836+710 14 46 13 28.9 -22.0 6.1 77.9 13 1 1 1003 19 17 15 19 27 00 --- 14 55 59 28.1 -21.8 6.2 75.7 585 F 1 1040 19 17 16 19 28 00 0859+681 14 57 00 29.3 -25.5 5.9 78.9 54 1 1 1040 19 28 00 19 36 00 --- 15 05 01 28.6 -25.3 6.0 77.1 480 F 1 1071 19 28 01 19 37 00 0836+710 15 06 01 27.3 -21.5 6.4 73.4 54 1 1 1071 19 37 00 19 46 00 --- 15 15 03 26.6 -21.3 6.5 71.4 540 F 1 1106 19 37 01 19 46 15 0836+710 15 15 18 26.6 -21.3 6.6 71.4 13 1 1 1106 19 46 15 19 56 00 --- 15 25 04 25.8 -21.0 6.7 69.2 585 F 1 1144 19 46 16 19 57 00 0859+681 15 26 04 26.7 -24.7 6.4 72.5 54 1 1 1144 19 57 00 20 05 00 --- 15 34 06 25.9 -24.5 6.5 70.8 480 F 1 1175 19 57 01 20 06 00 0836+710 15 35 06 25.1 -20.6 6.9 67.0 54 1 1 1175 20 06 00 20 15 00 --- 15 44 07 24.4 -20.3 7.0 65.0 540 F 1 1210 20 06 01 20 15 15 0836+710 15 44 22 24.4 -20.3 7.0 64.9 13 1 1 1210 20 15 15 20 25 00 --- 15 54 09 23.7 -19.9 7.2 62.8 585 F 1 1247 20 15 16 20 26 00 0859+681 15 55 09 24.1 -23.7 6.8 66.2 54 1 1 1247 20 26 00 20 34 00 --- 16 03 10 23.4 -23.3 7.0 64.5 480 F 1 1278 20 26 01 20 35 00 0836+710 16 04 11 22.9 -19.5 7.4 60.6 54 1 1 1278 20 35 00 20 44 00 --- 16 13 12 22.3 -19.1 7.5 58.6 540 F 1 1313 20 35 01 20 44 15 0836+710 16 13 27 22.3 -19.1 7.5 58.5 13 1 1 1313 20 44 15 20 54 00 --- 16 23 14 21.6 -18.6 7.7 56.4 585 F 1 1351 20 44 16 20 55 00 0859+681 16 24 14 21.7 -22.3 7.3 60.0 54 1 1 1351 20 55 00 21 03 00 --- 16 32 15 21.0 -21.9 7.5 58.3 480 F 1 1382 20 55 01 21 04 00 0836+710 16 33 15 20.9 -18.1 7.9 54.2 54 1 1 1382 21 04 00 21 13 00 --- 16 42 17 20.3 -17.6 8.0 52.3 540 F 1 1417 21 04 01 Schedule for SHANGHAI (Code Sh ) Page 5 EVN-MERLIN-18CM-0836+710 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 ---------------------------------------------------------------------------------------- --- Tue 13 Mar 2007 Day 72 --- 21 13 15 0836+710 16 42 32 20.3 -17.6 8.0 52.2 13 1 1 1417 21 13 15 21 23 00 --- 16 52 18 19.7 -17.1 8.2 50.1 585 F 1 1454 21 13 16 21 24 00 0859+681 16 53 19 19.4 -20.8 7.8 53.8 54 1 1 1454 21 24 00 21 32 00 --- 17 01 20 18.8 -20.3 7.9 52.1 480 F 1 1485 21 24 01 21 33 00 0836+710 17 02 20 19.1 -16.5 8.3 47.9 54 1 1 1485 21 33 00 21 42 00 --- 17 11 22 18.5 -16.0 8.5 45.9 540 F 1 1520 21 33 01 21 42 15 0836+710 17 11 37 18.5 -15.9 8.5 45.9 13 1 1 1520 21 42 15 21 52 00 --- 17 21 23 18.0 -15.3 8.7 43.8 585 F 1 1558 21 42 16 21 53 00 0859+681 17 22 23 17.3 -18.9 8.3 47.7 54 1 1 1558 21 53 00 22 01 00 --- 17 30 25 16.7 -18.4 8.4 46.0 480 F 1 1589 21 53 01 22 02 00 0836+710 17 31 25 17.4 -14.7 8.8 41.6 54 1 1 1589 22 02 00 22 11 00 --- 17 40 26 16.9 -14.1 9.0 39.6 540 F 1 1624 22 02 01 22 11 15 0836+710 17 40 41 16.9 -14.1 9.0 39.6 13 1 1 1624 22 11 15 22 21 00 --- 17 50 28 16.4 -13.5 9.1 37.4 585 F 1 1662 22 11 16 22 22 00 0859+681 17 51 28 15.3 -16.9 8.8 41.5 55 1 1 1662 22 22 00 22 30 00 --- 17 59 29 14.9 -16.3 8.9 39.8 480 F 1 1692 22 22 01 22 31 00 0836+710 18 00 30 15.9 -12.8 9.3 35.3 54 1 1 1692 22 31 00 22 40 00 --- 18 09 31 15.5 -12.1 9.5 33.3 540 F 1 1727 22 31 01 22 40 15 0836+710 18 09 46 15.5 -12.1 9.5 33.3 13 1 1 1727 22 40 15 22 50 00 --- 18 19 33 15.1 -11.4 9.6 31.1 585 F 1 1765 22 40 16 22 51 00 0859+681 18 20 33 13.6 -14.7 9.3 35.3 55 1 1 1765 22 51 00 22 59 00 --- 18 28 34 13.2 -14.1 9.4 33.6 480 F 1 1796 22 51 01 23 00 00 0836+710 18 29 34 14.7 -10.7 9.8 29.0 55 1 1 1796 23 00 00 23 09 00 --- 18 38 36 14.3 -10.0 9.9 27.0 540 F 1 1831 23 00 01 23 09 15 0836+710 18 38 51 14.3 -10.0 9.9 26.9 13 1 1 1831 23 09 15 23 19 00 --- 18 48 38 14.0 -9.2 10.1 24.8 585 F 1 1869 23 09 16 23 20 00 0859+681 18 49 38 12.2 -12.3 9.8 29.1 55 1 1 1869 23 20 00 23 28 00 --- 18 57 39 11.8 -11.7 9.9 27.4 480 F 1 1900 23 20 01 23 29 00 0836+710 18 58 39 13.6 -8.5 10.3 22.6 55 1 1 1900 23 29 00 23 38 00 --- 19 07 41 13.4 -7.8 10.4 20.7 540 F 1 1934 23 29 01 Schedule for SHANGHAI (Code Sh ) Page 6 EVN-MERLIN-18CM-0836+710 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 ---------------------------------------------------------------------------------------- --- Tue 13 Mar 2007 Day 72 --- 23 38 15 0836+710 19 07 56 13.3 -7.7 10.4 20.6 13 1 1 1934 23 38 15 23 48 00 --- 19 17 42 13.1 -7.0 10.6 18.5 585 F 1 1972 23 38 16 --- Start: Tue 13 Mar 2007 Day 72 -- Stop: Wed 14 Mar 2007 Day 73 --- 23 56 30 3C345 19 26 14 56.0 -63.8 2.7 91.9 436 1 1 1972 23 56 30 00 05 00 --- 19 34 45 54.4 -63.8 2.9 90.5 510 F 1 2005 23 56 31 00 12 00 0836+710 19 41 46 12.5 -5.0 11.0 13.2 348 1 1 2005 00 12 00 00 20 00 --- 19 49 48 12.4 -4.4 11.1 11.5 480 F 1 2036 00 12 01 00 20 15 0836+710 19 50 03 12.4 -4.3 11.1 11.4 13 1 1 2036 00 20 15 00 30 00 --- 19 59 49 12.3 -3.5 11.3 9.3 585 F 1 2074 00 20 16 00 31 00 0859+681 20 00 49 9.7 -6.0 10.9 13.8 54 1 1 2074 00 31 00 00 40 00 --- 20 09 51 9.6 -5.2 11.1 11.9 540 F 1 2109 00 31 01 00 41 00 0836+710 20 10 51 12.1 -2.6 11.5 6.9 54 1 1 2109 00 41 00 00 50 00 --- 20 19 52 12.1 -1.9 11.6 4.9 540 F 1 2143 00 41 01 00 50 15 0836+710 20 20 08 12.0 -1.8 11.6 4.8 13 1 1 2143 00 50 15 01 00 00 --- 20 29 54 12.0 -1.0 11.8 2.7 585 F 1 2181 00 50 16 01 01 00 0859+681 20 30 54 9.2 -3.2 11.4 7.3 53 1 1 2181 01 01 00 01 10 00 --- 20 39 56 9.1 -2.3 11.6 5.3 540 F 1 2216 01 01 01 01 11 00 0836+710 20 40 56 12.0 -0.1 12.0 0.3 53 1 1 2216 01 11 00 01 20 00 --- 20 49 57 12.0 0.6-11.9 -1.7 540 F 1 2251 01 11 01 01 20 15 0836+710 20 50 12 12.0 0.7-11.9 -1.8 13 1 1 2251 01 20 15 01 30 00 --- 20 59 59 12.0 1.5-11.7 -3.9 585 F 1 2289 01 20 16 01 31 00 0859+681 21 00 59 9.0 -0.3 11.9 0.8 53 1 1 2289 01 31 00 01 40 00 --- 21 10 01 9.0 0.5-11.9 -1.2 540 F 1 2323 01 31 01 01 41 00 0836+710 21 11 01 12.1 2.4-11.5 -6.3 53 1 1 2323 01 41 00 01 50 00 --- 21 20 02 12.2 3.2-11.4 -8.3 540 F 1 2358 01 41 01 01 50 15 0836+710 21 20 17 12.2 3.2-11.4 -8.3 13 1 1 2358 01 50 15 02 00 00 --- 21 30 04 12.3 4.0-11.2 -10.5 585 F 1 2396 01 50 16 02 01 00 0859+681 21 31 04 9.2 2.5-11.6 -5.7 53 1 1 2396 02 01 00 02 10 00 --- 21 40 06 9.3 3.4-11.4 -7.7 540 F 1 2431 02 01 01 Schedule for SHANGHAI (Code Sh ) Page 7 EVN-MERLIN-18CM-0836+710 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 14 Mar 2007 Day 73 --- 02 11 00 0836+710 21 41 06 12.5 4.9-11.0 -12.9 53 1 1 2431 02 11 00 02 20 00 --- 21 50 07 12.7 5.6-10.9 -14.9 540 F 1 2466 02 11 01 02 20 15 0836+710 21 50 22 12.7 5.6-10.9 -14.9 13 1 1 2466 02 20 15 02 30 00 --- 22 00 09 12.9 6.4-10.7 -17.0 585 F 1 2503 02 20 16 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: el034.18cm Matches group sh18cm in /homes/vlbsoft/sched/catalogs/freq.dat Huang Xinyong 27Sept05 Setup group: 9 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= 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 Net SB= L L U U L L U U L L U U L L U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 1 2 3 4 3 4 5 6 5 6 7 8 7 8 BBC SB= U U L L U U L L U U L L U U L L IF = C A C A C A C A C A C A C A C A The following frequency sets based on this setup were used. Frequency Set: 9 Setup file default. Used pcal sets: 1 LO sum= 1634.49 1634.49 1634.49 1634.49 1650.49 1650.49 1650.49 1650.49 1666.49 1666.49 1666.49 1666.49 1682.49 1682.49 1682.49 1682.49 BBC fr= 665.51 665.51 665.51 665.51 649.51 649.51 649.51 649.51 633.51 633.51 633.51 633.51 617.51 617.51 617.51 617.51 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= 490 510 490 510 490 510 490 510 PCALFR2= 490 510 490 510 490 510 490 510 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 -- EVN-MERLIN-18CM-0836+710 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) J0841+7053 08 36 21.556636 * 08 41 24.365274 08 42 12.244025 0.62 * 0836+710 71 04 22.42742 * 70 53 42.17305 70 52 23.45147 0.40 J0841+70 /homes/vlbsoft/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 7.637 scan hours, 339.072 baseline hours above horizon. J0903+6757 08 59 23.027466 * 09 03 53.155098 09 04 36.098397 0.74 * 0859+681 68 09 16.15540 * 67 57 22.68628 67 55 50.95888 0.52 J0903+67 /homes/vlbsoft/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 2.867 scan hours, 128.997 baseline hours above horizon. J0927+3902 09 23 55.319213 * 09 27 03.013934 09 27 32.113748 0.26 0923+392 39 15 23.56648 * 39 02 20.85188 39 00 31.28380 0.40 * 4C39.25 /homes/vlbsoft/sched/catalogs/sources.vlba J0927+39 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.133 scan hours, 5.979 baseline hours above horizon. J1642+3948 16 41 17.606231 * 16 42 58.809968 16 43 14.015806 0.26 1641+399 39 54 10.81494 * 39 48 36.99400 39 47 21.95625 0.40 * 3C345 /homes/vlbsoft/sched/catalogs/sources.vlba J1642+39 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.142 scan hours, 6.373 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) 0836+710 106.6 0859+681 110.1 4C39.25 133.8 3C345 101.5 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