COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: Type-2 quasars Exp. Code: EK022B Schedule Version: 1.00 Processed by SCHED version: 6.02 July 2005 PI: Hans-Rainer Kloeckner Address: University of Oxford Keble Road,Oxford OX1 3RH United Kingdom Phone: +44 1865 273435 EMAIL: hrk@astro.ox.ac.uk Fax: +44 1865 273390 Phone during observation: +44 1865 273435 Observing mode: 1 Gbs at 18cm Notes: >>> THANK YOU <<< Schedule for SHANGHAI (Code Sh ) Page 2 Type-2 quasars 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). 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 ---------------------------------------------------------------------------------------- --- Sun 30 Oct 2005 Day 303 --- Next scan frequencies: 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 Next BBC frequencies: 689.51 689.51 689.51 689.51 657.51 657.51 657.51 657.51 625.51 625.51 625.51 625.51 593.51 593.51 593.51 593.51 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 09 30 00 J1722+5856 20 10 00 50.5 -32.8 2.8 116.1 0 1 1 0 09 30 00 09 35 00 =1721+589 20 15 01 49.9 -33.2 2.9 114.7 300 F 1 0 09 30 10 09 35 00 J1722+6105 20 15 01 49.0 -30.2 2.9 117.0 -8 1 1 0 09 35 00 09 41 00 =1722+611 20 21 02 48.3 -30.7 3.0 115.3 352 F 1 0 09 35 10 09 42 00 J1722+5856 20 22 02 49.1 -33.8 3.0 112.8 52 1 1 0 09 42 00 09 45 00 =1721+589 20 25 03 48.7 -34.0 3.0 112.0 180 F 1 0 09 42 10 09 45 00 AMS01 20 25 03 47.3 -33.2 3.2 110.5 -7 1 1 0 09 45 00 09 53 00 --- 20 33 04 46.3 -33.7 3.3 108.4 473 F 1 0 09 45 10 09 54 00 J1722+5856 20 34 04 47.6 -34.6 3.2 109.6 54 1 1 0 09 54 00 09 57 00 =1721+589 20 37 05 47.3 -34.8 3.2 108.8 180 F 1 0 09 54 10 09 57 00 AMS01 20 37 05 45.8 -34.0 3.4 107.4 -7 1 1 0 09 57 00 10 05 00 --- 20 45 06 44.9 -34.4 3.5 105.3 473 F 1 0 09 57 10 10 06 00 J1722+5856 20 46 06 46.2 -35.3 3.4 106.5 54 1 1 0 10 06 00 10 09 00 =1721+589 20 49 07 45.8 -35.5 3.4 105.7 180 F 1 0 10 06 10 10 09 00 AMS06 20 49 07 44.4 -34.5 3.6 104.5 -7 1 1 0 10 09 00 10 17 00 --- 20 57 08 43.5 -34.8 3.7 102.5 473 F 1 0 10 09 10 10 18 00 J1722+5856 20 58 08 44.7 -35.9 3.6 103.5 54 1 1 0 10 18 00 10 21 00 =1721+589 21 01 09 44.3 -36.0 3.6 102.8 180 F 1 0 10 18 10 10 21 00 AMS06 21 01 09 43.0 -35.0 3.8 101.6 -6 1 1 0 10 21 00 10 29 00 --- 21 09 10 42.0 -35.2 3.9 99.7 474 F 1 0 10 21 10 10 30 00 J1722+5856 21 10 10 43.1 -36.3 3.8 100.6 54 1 1 0 10 30 00 10 33 00 =1721+589 21 13 11 42.8 -36.4 3.8 99.9 180 F 1 0 10 30 10 Schedule for SHANGHAI (Code Sh ) Page 3 Type-2 quasars 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). 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 ---------------------------------------------------------------------------------------- --- Sun 30 Oct 2005 Day 303 --- 10 33 00 AMS05 21 13 11 41.5 -35.7 4.0 98.5 -6 1 1 0 10 33 00 10 41 00 --- 21 21 12 40.5 -35.9 4.1 96.6 474 F 1 0 10 33 10 10 42 00 J1722+5856 21 22 12 41.6 -36.7 4.0 97.8 54 1 1 0 10 42 00 10 45 00 =1721+589 21 25 13 41.2 -36.7 4.0 97.1 180 F 1 0 10 42 10 10 45 00 AMS05 21 25 13 40.0 -36.0 4.2 95.7 -6 1 1 0 10 45 00 10 53 00 --- 21 33 14 39.0 -36.1 4.3 93.9 474 F 1 0 10 45 10 10 54 00 J1722+5856 21 34 14 40.1 -36.9 4.2 95.1 54 1 1 0 10 54 00 10 57 00 =1721+589 21 37 14 39.7 -36.9 4.2 94.4 180 F 1 0 10 54 10 10 57 00 AMS03 21 37 14 38.5 -36.4 4.4 92.8 -6 1 1 0 10 57 00 11 05 00 --- 21 45 16 37.5 -36.4 4.5 91.1 474 F 1 0 10 57 10 11 06 00 J1722+5856 21 46 16 38.5 -37.0 4.4 92.4 55 1 1 0 11 06 00 11 09 00 =1721+589 21 49 16 38.1 -37.0 4.4 91.8 180 F 1 0 11 06 10 11 09 00 AMS03 21 49 16 37.0 -36.4 4.6 90.2 -6 1 1 0 11 09 00 11 17 00 --- 21 57 18 36.0 -36.4 4.7 88.5 474 F 1 0 11 09 10 11 18 00 J1722+5856 21 58 18 37.0 -37.1 4.6 89.8 55 1 1 0 11 18 00 11 23 00 =1721+589 22 03 19 36.3 -37.0 4.7 88.7 300 F 1 0 11 18 10 11 23 00 J1722+6105 22 03 19 36.3 -34.4 4.7 90.3 -7 1 1 0 11 23 00 11 29 00 =1722+611 22 09 20 35.6 -34.4 4.8 89.0 353 F 1 0 11 23 10 11 30 00 J1722+5856 22 10 20 35.4 -37.0 4.8 87.3 53 1 1 0 11 30 00 11 33 00 =1721+589 22 13 20 35.0 -37.0 4.8 86.6 180 F 1 0 11 30 10 11 34 00 3C345 22 14 21 24.4 -56.8 5.5 68.9 18 1 1 0 11 34 00 11 45 00 --- 22 25 22 22.4 -56.0 5.7 67.5 660 F 1 0 11 34 10 11 48 00 J1722+5856 22 28 23 33.1 -36.8 5.1 83.5 140 1 1 0 11 48 00 11 51 00 =1721+589 22 31 23 32.7 -36.7 5.1 82.9 180 F 1 0 11 48 10 11 51 00 AMS01 22 31 23 31.7 -35.4 5.3 81.6 -6 1 1 0 11 51 00 11 59 00 --- 22 39 25 30.7 -35.2 5.4 80.0 474 F 1 0 11 51 10 12 00 00 J1722+5856 22 40 25 31.6 -36.5 5.3 81.1 55 1 1 0 12 00 00 12 03 00 =1721+589 22 43 25 31.2 -36.5 5.3 80.5 180 F 1 0 12 00 10 12 03 00 AMS01 22 43 25 30.2 -35.1 5.5 79.2 -5 1 1 0 12 03 00 12 11 00 --- 22 51 27 29.2 -34.8 5.6 77.5 475 F 1 0 12 03 10 Schedule for SHANGHAI (Code Sh ) Page 4 Type-2 quasars 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). 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 ---------------------------------------------------------------------------------------- --- Sun 30 Oct 2005 Day 303 --- 12 12 00 J1722+5856 22 52 27 30.0 -36.2 5.5 78.7 55 1 1 0 12 12 00 12 15 00 =1721+589 22 55 27 29.7 -36.1 5.5 78.1 180 F 1 0 12 12 10 12 15 00 AMS06 22 55 27 28.8 -34.7 5.7 76.8 -5 1 1 0 12 15 00 12 23 00 --- 23 03 29 27.8 -34.4 5.8 75.2 475 F 1 0 12 15 10 12 24 00 J1722+5856 23 04 29 28.5 -35.8 5.7 76.3 55 1 1 0 12 24 00 12 27 00 =1721+589 23 07 29 28.1 -35.7 5.7 75.7 180 F 1 0 12 24 10 12 27 00 AMS06 23 07 29 27.3 -34.3 5.9 74.4 -5 1 1 0 12 27 00 12 35 00 --- 23 15 31 26.3 -34.0 6.0 72.8 475 F 1 0 12 27 10 12 35 00 J1722+5856 23 15 31 27.1 -35.4 5.9 74.1 -5 1 1 0 12 35 00 12 38 00 =1721+589 23 18 31 26.8 -35.3 5.9 73.5 175 F 1 0 12 35 10 12 39 00 J1722+5856 23 19 31 26.6 -35.3 5.9 73.3 58 1 1 0 12 39 00 12 42 00 =1721+589 23 22 32 26.3 -35.1 6.0 72.7 180 F 1 0 12 39 10 12 42 00 AMS05 23 22 32 25.4 -34.0 6.1 71.3 -5 1 1 0 12 42 00 12 50 00 --- 23 30 33 24.5 -33.6 6.3 69.7 475 F 1 0 12 42 10 12 51 00 J1722+5856 23 31 33 25.2 -34.7 6.1 71.0 56 1 1 0 12 51 00 12 54 00 =1721+589 23 34 34 24.8 -34.6 6.2 70.4 180 F 1 0 12 51 10 12 54 00 AMS05 23 34 34 24.0 -33.4 6.3 69.0 -5 1 1 0 12 54 00 13 02 00 --- 23 42 35 23.0 -33.0 6.5 67.4 475 F 1 0 12 54 10 13 03 00 J1722+5856 23 43 35 23.7 -34.1 6.3 68.6 56 1 1 0 13 03 00 13 06 00 =1721+589 23 46 36 23.4 -34.0 6.4 68.1 180 F 1 0 13 03 10 13 21 00 J2005+7752 00 01 38 36.7 -13.0 3.9 113.7 854 1 1 0 13 21 00 13 32 00 =2007+777 00 12 40 36.1 -13.2 4.1 110.8 660 F 1 0 13 21 10 13 34 00 J1722+5856 00 14 40 20.1 -32.4 6.9 62.7 64 1 1 0 13 34 00 13 37 00 =1721+589 00 17 41 19.7 -32.2 6.9 62.1 180 F 1 0 13 34 10 13 37 00 J1722+6105 00 17 41 20.7 -30.1 6.9 62.8 -6 1 1 0 13 37 00 13 42 00 =1722+611 00 22 42 20.2 -29.8 7.0 61.8 294 F 1 0 13 37 10 13 43 00 J1722+5856 00 23 42 19.0 -31.8 7.0 60.9 54 1 1 0 13 43 00 13 46 00 =1721+589 00 26 42 18.7 -31.6 7.1 60.3 180 F 1 0 13 43 10 13 46 00 AMS03 00 26 42 18.0 -30.5 7.2 58.8 -4 1 1 0 13 46 00 13 54 00 --- 00 34 44 17.1 -29.9 7.4 57.2 476 F 1 0 13 46 10 Schedule for SHANGHAI (Code Sh ) Page 5 Type-2 quasars 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). 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 ---------------------------------------------------------------------------------------- --- Sun 30 Oct 2005 Day 303 --- 13 55 00 J1722+5856 00 35 44 17.7 -31.0 7.2 58.6 56 1 1 0 13 55 00 13 58 00 =1721+589 00 38 44 17.4 -30.7 7.3 58.0 180 F 1 0 13 55 10 13 58 00 AMS03 00 38 44 16.7 -29.6 7.4 56.4 -4 1 1 0 13 58 00 14 06 00 --- 00 46 46 15.8 -29.0 7.6 54.9 476 F 1 0 13 58 10 14 07 00 J1722+5856 00 47 46 16.4 -30.1 7.4 56.3 56 1 1 0 14 07 00 14 10 00 =1721+589 00 50 46 16.1 -29.9 7.5 55.7 180 F 1 0 14 07 10 14 10 00 AMS01 00 50 46 15.7 -28.3 7.6 54.1 -5 1 1 0 14 10 00 14 18 00 --- 00 58 48 14.8 -27.7 7.8 52.5 475 F 1 0 14 10 10 14 19 00 J1722+5856 00 59 48 15.1 -29.2 7.6 53.9 55 1 1 0 14 19 00 14 22 00 =1721+589 01 02 48 14.8 -28.9 7.7 53.4 180 F 1 0 14 19 10 14 22 00 AMS01 01 02 48 14.5 -27.4 7.8 51.7 -5 1 1 0 14 22 00 14 30 00 --- 01 10 49 13.7 -26.7 8.0 50.2 475 F 1 0 14 22 10 14 31 00 J1722+5856 01 11 50 13.9 -28.2 7.8 51.6 55 1 1 0 14 31 00 14 34 00 =1721+589 01 14 50 13.6 -27.9 7.9 51.0 180 F 1 0 14 31 10 14 34 00 AMS06 01 14 50 13.4 -26.4 8.0 49.5 -5 1 1 0 14 34 00 14 42 00 --- 01 22 51 12.6 -25.7 8.2 47.9 475 F 1 0 14 34 10 14 43 00 J1722+5856 01 23 52 12.7 -27.2 8.0 49.3 55 1 1 0 14 43 00 14 46 00 =1721+589 01 26 52 12.4 -26.9 8.1 48.7 180 F 1 0 14 43 10 14 46 00 AMS06 01 26 52 12.2 -25.4 8.2 47.1 -5 1 1 0 14 46 00 14 54 00 --- 01 34 53 11.5 -24.7 8.4 45.5 475 F 1 0 14 46 10 14 55 00 J1722+5856 01 35 54 11.5 -26.1 8.2 46.9 55 1 1 0 14 55 00 14 58 00 =1721+589 01 38 54 11.2 -25.8 8.3 46.3 180 F 1 0 14 55 10 14 58 00 AMS05 01 38 54 10.9 -24.5 8.4 44.7 -5 1 1 0 14 58 00 15 06 00 --- 01 46 55 10.2 -23.8 8.6 43.1 475 F 1 0 14 58 10 15 07 00 J1722+5856 01 47 56 10.4 -25.0 8.4 44.5 56 1 1 0 15 07 00 15 10 00 =1721+589 01 50 56 10.1 -24.7 8.5 44.0 180 F 1 0 15 07 10 15 10 00 AMS05 01 50 56 9.9 -23.4 8.6 42.3 -5 1 1 0 15 10 00 15 18 00 --- 01 58 57 9.2 -22.6 8.8 40.7 475 F 1 0 15 10 10 15 19 00 J1722+5856 01 59 58 9.3 -23.9 8.6 42.2 56 1 1 0 15 19 00 15 22 00 =1721+589 02 02 58 9.1 -23.6 8.7 41.6 180 F 1 0 15 19 10 Schedule for SHANGHAI (Code Sh ) Page 6 Type-2 quasars 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). 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 ---------------------------------------------------------------------------------------- --- Sun 30 Oct 2005 Day 303 --- 15 22 00 AMS03 02 02 58 8.7 -22.3 8.8 39.8 -4 1 1 0 15 22 00 15 30 00 --- 02 10 59 8.1 -21.5 9.0 38.2 476 F 1 0 15 22 10 15 31 00 J1722+5856 02 12 00 8.3 -22.7 8.8 39.8 56 1 1 0 15 31 00 15 34 00 =1721+589 02 15 00 8.1 -22.4 8.9 39.2 180 F 1 0 15 31 10 15 34 00 AMS03 02 15 00 7.8 -21.1 9.0 37.4 -4 1 1 0 15 34 00 15 42 00 --- 02 23 01 7.2 -20.3 9.2 35.8 476 F 1 0 15 34 10 15 43 00 J1722+5856 02 24 01 7.4 -21.5 9.0 37.4 56 1 1 0 15 43 00 15 48 00 =1721+589 02 29 02 7.0 -20.9 9.1 36.4 300 F 1 0 15 43 10 15 48 00 J1722+6105 02 29 02 8.7 -19.6 9.1 36.5 -8 1 1 0 15 48 00 15 54 00 =1722+611 02 35 03 8.3 -19.0 9.2 35.3 352 F 1 0 15 48 10 15 55 00 J1722+5856 02 36 03 6.4 -20.2 9.2 34.9 52 1 1 0 15 55 00 15 58 00 =1721+589 02 39 04 6.2 -19.9 9.3 34.3 180 F 1 0 15 55 10 15 58 00 AMS01 02 39 04 6.4 -18.3 9.4 32.5 -5 1 1 0 15 58 00 16 06 00 --- 02 47 05 5.9 -17.5 9.6 30.8 475 F 1 0 15 58 10 16 07 00 J1722+5856 02 48 05 5.6 -18.9 9.4 32.5 55 1 1 0 16 07 00 16 10 00 =1721+589 02 51 06 5.4 -18.6 9.5 31.9 180 F 1 0 16 07 10 16 10 00 AMS01 02 51 06 5.6 -17.0 9.6 30.0 -5 1 1 0 16 10 00 16 18 00 --- 02 59 07 5.1 -16.1 9.8 28.4 475 F 1 0 16 10 10 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: 1Gbs.18cm Matches group sh18cm in ./hrkfreq.dat Huang Xinyong 27Sept05 Setup group: 9 Station: SHANGHAI Total bit rate: 1024 Format: MKIV1:2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 Speedup factor: 0.50 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= 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 BBC fr= 689.51 689.51 689.51 689.51 657.51 657.51 657.51 657.51 625.51 625.51 625.51 625.51 593.51 593.51 593.51 593.51 Bandwd= 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 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 -- Type-2 quasars 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) * AMS01 17 12 30.450877 * 17 13 11.167000 17 13 13.994101 0.00 59 59 16.13269 * 59 55 51.53000 59 55 32.97432 0.00 From catalog imbedded in main SCHED input file. 1.067 scan hours, 36.295 baseline hours above horizon. * AMS03 17 12 57.418009 * 17 13 40.191000 17 13 43.278870 0.00 59 31 08.36688 * 59 27 45.76100 59 27 27.46397 0.00 From catalog imbedded in main SCHED input file. 0.933 scan hours, 30.857 baseline hours above horizon. * AMS05 17 13 00.857297 * 17 13 42.766000 17 13 45.745146 0.00 59 42 42.61119 * 59 39 20.22000 59 39 01.94751 0.00 From catalog imbedded in main SCHED input file. 1.067 scan hours, 34.366 baseline hours above horizon. * AMS06 17 13 03.349588 * 17 13 43.906000 17 13 46.714832 0.00 60 00 36.88942 * 59 57 14.62800 59 56 56.36754 0.00 From catalog imbedded in main SCHED input file. 1.067 scan hours, 34.240 baseline hours above horizon. J1642+3948 16 41 17.606231 * 16 42 58.809968 16 43 09.101504 0.26 1641+399 39 54 10.81493 * 39 48 36.99399 39 48 01.86785 0.40 * 3C345 /data/soay/hrk/HRKSOFTWAREBOX/SCHED_6.02/catalogs/sources.vlba J1642+39 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.183 scan hours, 5.874 baseline hours above horizon. * J1722+5856 17 21 52.440263 * 17 22 36.726557 17 22 40.035279 0.62 1721+589 58 59 06.49428 * 58 56 22.26066 58 56 08.80603 0.49 /data/soay/hrk/HRKSOFTWAREBOX/SCHED_6.02/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 2.083 scan hours, 71.793 baseline hours above horizon. * J1722+6105 17 22 05.759508 * 17 22 40.059358 17 22 42.110691 0.52 1722+611 61 08 43.42140 * 61 05 59.78729 61 05 46.38463 0.45 /data/soay/hrk/HRKSOFTWAREBOX/SCHED_6.02/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.483 scan hours, 15.142 baseline hours above horizon. * J2005+7752 20 07 20.430184 * 20 05 30.998512 20 05 15.699597 0.96 2007+777 77 43 58.12306 * 77 52 43.24759 77 53 55.43800 0.40 J2005+77 /data/soay/hrk/HRKSOFTWAREBOX/SCHED_6.02/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.183 scan hours, 6.318 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) AMS01 81.7 AMS03 81.4 AMS05 81.5 AMS06 81.7 3C345 63.3 J1722+5856 81.8 J1722+6105 83.3 J2005+7752 102.9 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