COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: Type-2 quasars Exp. Code: EK024C Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 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 Gbit at 18cm Notes: >>> THANK YOU TO MAKE THIS EXPERIMENT POSSIBLE <<< 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. 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 ---------------------------------------------------------------------------------------- --- Sun 11 Mar 2007 Day 70 --- 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 01 00 00 J1722+5856 20 18 04 49.6 -33.5 2.9 113.9 0 1 1 0 01 00 00 01 05 00 =1721+589 20 23 05 49.0 -33.8 3.0 112.5 300 F 1 39 01 00 01 01 05 00 J1722+6105 20 23 05 48.1 -30.9 3.0 114.7 -5 1 1 39 01 05 00 01 11 00 =1722+611 20 29 06 47.4 -31.3 3.1 113.1 355 F 1 85 01 05 01 01 12 00 J1722+5856 20 30 06 48.1 -34.3 3.1 110.6 55 1 1 85 01 12 00 01 15 00 =1721+589 20 33 07 47.8 -34.5 3.2 109.8 180 F 1 108 01 12 01 01 15 00 AMS14 20 33 07 47.3 -34.9 3.2 108.7 -3 1 1 108 01 15 00 01 23 00 --- 20 41 08 46.3 -35.4 3.4 106.7 477 F 1 170 01 15 01 01 24 00 J1722+5856 20 42 08 46.7 -35.1 3.3 107.5 57 1 1 170 01 24 00 01 27 00 =1721+589 20 45 09 46.3 -35.3 3.4 106.7 180 F 1 194 01 24 01 01 27 00 AMS14 20 45 09 45.8 -35.6 3.4 105.7 -3 1 1 194 01 27 00 01 35 00 --- 20 53 10 44.8 -36.0 3.6 103.7 477 F 1 255 01 27 01 01 36 00 J1722+5856 20 54 10 45.2 -35.7 3.5 104.5 57 1 1 255 01 36 00 01 39 00 =1721+589 20 57 11 44.8 -35.8 3.6 103.7 180 F 1 279 01 36 01 01 39 00 AMS17 20 57 11 44.6 -36.0 3.6 103.2 -2 1 1 279 01 39 00 01 47 00 --- 21 05 12 43.6 -36.3 3.7 101.3 478 F 1 341 01 39 01 01 48 00 J1722+5856 21 06 12 43.7 -36.2 3.7 101.6 58 1 1 341 01 48 00 01 51 00 =1721+589 21 09 13 43.3 -36.3 3.8 100.8 180 F 1 364 01 48 01 01 51 00 AMS17 21 09 13 43.1 -36.5 3.8 100.3 -2 1 1 364 01 51 00 01 59 00 --- 21 17 14 42.0 -36.7 3.9 98.5 478 F 1 426 01 51 01 02 00 00 J1722+5856 21 18 14 42.1 -36.6 3.9 98.7 58 1 1 426 02 00 00 02 03 00 =1721+589 21 21 15 41.7 -36.6 4.0 98.0 180 F 1 449 02 00 01 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. 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 ---------------------------------------------------------------------------------------- --- Sun 11 Mar 2007 Day 70 --- 02 03 00 AMS13 21 21 15 41.2 -36.2 4.0 97.5 -3 1 1 449 02 03 00 02 11 00 --- 21 29 16 40.2 -36.4 4.2 95.7 477 F 1 511 02 03 01 02 12 00 J1722+5856 21 30 16 40.6 -36.8 4.1 96.0 57 1 1 511 02 12 00 02 15 00 =1721+589 21 33 17 40.2 -36.9 4.2 95.3 180 F 1 534 02 12 01 02 15 00 AMS13 21 33 17 39.7 -36.4 4.2 94.8 -3 1 1 534 02 15 00 02 23 00 --- 21 41 18 38.7 -36.5 4.4 93.0 477 F 1 596 02 15 01 02 24 00 J1722+5856 21 42 18 39.0 -37.0 4.3 93.3 57 1 1 596 02 24 00 02 27 00 =1721+589 21 45 19 38.7 -37.0 4.4 92.6 180 F 1 619 02 24 01 02 27 00 AMS20 21 45 19 38.4 -36.6 4.4 92.6 -2 1 1 619 02 27 00 02 35 00 --- 21 53 20 37.4 -36.6 4.5 90.8 478 F 1 681 02 27 01 02 36 00 J1722+5856 21 54 20 37.5 -37.1 4.5 90.7 58 1 1 681 02 36 00 02 39 00 =1721+589 21 57 21 37.1 -37.1 4.6 90.0 180 F 1 704 02 36 01 02 39 00 AMS20 21 57 21 36.9 -36.6 4.6 89.9 -2 1 1 704 02 39 00 02 47 00 --- 22 05 22 35.9 -36.6 4.7 88.2 478 F 1 766 02 39 01 02 48 00 J1722+5856 22 06 22 35.9 -37.0 4.7 88.1 58 1 1 766 02 48 00 02 53 00 =1721+589 22 11 23 35.3 -37.0 4.8 87.1 300 F 1 805 02 48 01 02 53 00 J1722+6105 22 11 23 35.4 -34.4 4.8 88.6 -5 1 1 805 02 53 00 02 59 00 =1722+611 22 17 24 34.7 -34.3 4.9 87.3 355 F 1 852 02 53 01 03 00 00 J1722+5856 22 18 24 34.4 -36.9 4.9 85.6 55 1 1 852 03 00 00 03 03 00 =1721+589 22 21 25 34.0 -36.9 5.0 85.0 180 F 1 875 03 00 01 03 04 00 3C345 22 22 25 23.0 -56.2 5.7 67.8 39 1 1 875 03 04 00 03 15 00 --- 22 33 27 21.0 -55.3 5.8 66.4 660 F 1 960 03 04 01 03 18 00 J1722+5856 22 36 27 32.1 -36.6 5.2 81.9 159 1 1 960 03 18 00 03 21 00 =1721+589 22 39 28 31.7 -36.6 5.3 81.3 180 F 1 983 03 18 01 03 21 00 AMS14 22 39 28 31.2 -36.6 5.3 80.5 -3 1 1 983 03 21 00 03 29 00 --- 22 47 29 30.2 -36.4 5.5 78.8 477 F 1 1045 03 21 01 03 30 00 J1722+5856 22 48 29 30.5 -36.3 5.4 79.5 57 1 1 1045 03 30 00 03 33 00 =1721+589 22 51 30 30.2 -36.3 5.5 78.9 180 F 1 1068 03 30 01 03 33 00 AMS14 22 51 30 29.7 -36.2 5.5 78.0 -3 1 1 1068 03 33 00 03 41 00 --- 22 59 31 28.6 -36.0 5.7 76.5 477 F 1 1130 03 33 01 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. 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 ---------------------------------------------------------------------------------------- --- Sun 11 Mar 2007 Day 70 --- 03 42 00 J1722+5856 23 00 31 29.0 -36.0 5.6 77.1 57 1 1 1130 03 42 00 03 45 00 =1721+589 23 03 32 28.6 -35.9 5.7 76.5 180 F 1 1153 03 42 01 03 45 00 AMS17 23 03 32 28.4 -35.9 5.7 76.1 -2 1 1 1153 03 45 00 03 53 00 --- 23 11 33 27.4 -35.6 5.8 74.5 478 F 1 1215 03 45 01 03 54 00 J1722+5856 23 12 33 27.5 -35.6 5.8 74.7 58 1 1 1215 03 54 00 03 57 00 =1721+589 23 15 34 27.1 -35.4 5.9 74.1 180 F 1 1239 03 54 01 03 57 00 AMS17 23 15 34 26.9 -35.4 5.9 73.7 -2 1 1 1239 03 57 00 04 05 00 --- 23 23 35 25.9 -35.1 6.0 72.1 478 F 1 1301 03 57 01 04 06 00 J1722+5856 23 24 35 26.0 -35.1 6.0 72.3 58 1 1 1301 04 06 00 04 09 00 =1721+589 23 27 35 25.7 -34.9 6.1 71.8 180 F 1 1324 04 06 01 04 09 00 AMS13 23 27 35 25.3 -34.3 6.1 71.2 -3 1 1 1324 04 09 00 04 17 00 --- 23 35 37 24.3 -34.0 6.3 69.6 477 F 1 1386 04 09 01 04 18 00 J1722+5856 23 36 37 24.6 -34.5 6.2 70.0 57 1 1 1386 04 18 00 04 21 00 =1721+589 23 39 37 24.2 -34.4 6.3 69.4 180 F 1 1409 04 18 01 04 21 00 AMS13 23 39 37 23.9 -33.8 6.3 68.8 -3 1 1 1409 04 21 00 04 29 00 --- 23 47 39 22.9 -33.3 6.5 67.3 477 F 1 1471 04 21 01 04 30 00 J1722+5856 23 48 39 23.1 -33.9 6.4 67.7 57 1 1 1471 04 30 00 04 33 00 =1721+589 23 51 39 22.8 -33.7 6.5 67.1 180 F 1 1494 04 30 01 04 33 00 AMS20 23 51 39 22.7 -33.3 6.5 66.9 -2 1 1 1494 04 33 00 04 41 00 --- 23 59 41 21.8 -32.8 6.6 65.4 478 F 1 1556 04 33 01 04 42 00 J1722+5856 00 00 41 21.7 -33.2 6.6 65.4 58 1 1 1556 04 42 00 04 45 00 =1721+589 00 03 41 21.3 -33.0 6.7 64.8 180 F 1 1579 04 42 01 04 45 00 AMS20 00 03 41 21.3 -32.6 6.7 64.6 -2 1 1 1579 04 45 00 04 53 00 --- 00 11 43 20.4 -32.1 6.8 63.0 478 F 1 1641 04 45 01 04 54 00 J1722+5856 00 12 43 20.3 -32.5 6.8 63.0 58 1 1 1641 04 54 00 04 57 00 =1721+589 00 15 43 19.9 -32.3 6.9 62.5 180 F 1 1664 04 54 01 05 12 00 J2005+7752 00 30 46 35.2 -13.6 4.4 106.1 873 1 1 1664 05 12 00 05 23 00 =2007+777 00 41 48 34.7 -13.8 4.6 103.3 660 F 1 1750 05 12 01 05 25 00 J1722+5856 00 43 48 16.8 -30.4 7.4 57.0 88 1 1 1750 05 25 00 05 28 00 =1721+589 00 46 48 16.5 -30.2 7.4 56.5 180 F 1 1773 05 25 01 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. 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 ---------------------------------------------------------------------------------------- --- Sun 11 Mar 2007 Day 70 --- 05 28 00 J1722+6105 00 46 48 17.7 -28.3 7.4 57.0 -4 1 1 1773 05 28 00 05 33 00 =1722+611 00 51 49 17.2 -27.9 7.5 56.0 296 F 1 1811 05 28 01 05 34 00 J1722+5856 00 52 49 15.8 -29.7 7.5 55.3 56 1 1 1811 05 34 00 05 37 00 =1721+589 00 55 50 15.5 -29.5 7.6 54.7 180 F 1 1835 05 34 01 05 37 00 AMS14 00 55 50 15.1 -29.2 7.6 54.0 -3 1 1 1835 05 37 00 05 45 00 --- 01 03 51 14.2 -28.6 7.7 52.4 477 F 1 1897 05 37 01 05 46 00 J1722+5856 01 04 51 14.6 -28.8 7.7 53.0 57 1 1 1897 05 46 00 05 49 00 =1721+589 01 07 52 14.3 -28.5 7.8 52.4 180 F 1 1920 05 46 01 05 49 00 AMS14 01 07 52 13.8 -28.3 7.8 51.6 -3 1 1 1920 05 49 00 05 57 00 --- 01 15 53 13.0 -27.6 8.0 50.1 477 F 1 1982 05 49 01 05 58 00 J1722+5856 01 16 53 13.4 -27.8 7.9 50.6 57 1 1 1982 05 58 00 06 01 00 =1721+589 01 19 54 13.1 -27.5 8.0 50.1 180 F 1 2005 05 58 01 06 01 00 AMS17 01 19 54 12.8 -27.4 8.0 49.7 -2 1 1 2005 06 01 00 06 09 00 --- 01 27 55 12.1 -26.7 8.1 48.1 478 F 1 2067 06 01 01 06 10 00 J1722+5856 01 28 55 12.2 -26.7 8.1 48.3 58 1 1 2067 06 10 00 06 13 00 =1721+589 01 31 56 11.9 -26.5 8.2 47.7 180 F 1 2090 06 10 01 06 13 00 AMS17 01 31 56 11.7 -26.4 8.2 47.3 -2 1 1 2090 06 13 00 06 21 00 --- 01 39 57 10.9 -25.6 8.3 45.8 478 F 1 2152 06 13 01 06 22 00 J1722+5856 01 40 57 11.1 -25.7 8.3 45.9 58 1 1 2152 06 22 00 06 25 00 =1721+589 01 43 58 10.8 -25.4 8.4 45.3 180 F 1 2175 06 22 01 06 25 00 AMS13 01 43 58 10.7 -24.7 8.4 44.6 -3 1 1 2175 06 25 00 06 33 00 --- 01 51 59 10.0 -24.0 8.6 43.0 477 F 1 2237 06 25 01 06 34 00 J1722+5856 01 52 59 10.0 -24.5 8.5 43.6 57 1 1 2237 06 34 00 06 37 00 =1721+589 01 56 00 9.7 -24.3 8.6 43.0 180 F 1 2261 06 34 01 06 37 00 AMS13 01 56 00 9.6 -23.6 8.6 42.2 -3 1 1 2261 06 37 00 06 45 00 --- 02 04 01 9.0 -22.8 8.8 40.6 477 F 1 2322 06 37 01 06 46 00 J1722+5856 02 05 01 8.9 -23.4 8.7 41.2 57 1 1 2322 06 46 00 06 49 00 =1721+589 02 08 02 8.7 -23.1 8.8 40.6 180 F 1 2346 06 46 01 06 49 00 AMS20 02 08 02 8.8 -22.7 8.8 40.3 -2 1 1 2346 06 49 00 06 57 00 --- 02 16 03 8.1 -21.9 8.9 38.7 478 F 1 2408 06 49 01 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. 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 ---------------------------------------------------------------------------------------- --- Sun 11 Mar 2007 Day 70 --- 06 58 00 J1722+5856 02 17 03 7.9 -22.2 8.9 38.8 58 1 1 2408 06 58 00 07 01 00 =1721+589 02 20 04 7.7 -21.9 9.0 38.2 180 F 1 2431 06 58 01 07 01 00 AMS20 02 20 04 7.8 -21.5 9.0 37.9 -2 1 1 2431 07 01 00 07 09 00 --- 02 28 05 7.2 -20.7 9.1 36.3 478 F 1 2493 07 01 01 07 10 00 J1722+5856 02 29 05 7.0 -20.9 9.1 36.4 58 1 1 2493 07 10 00 07 15 00 =1721+589 02 34 06 6.6 -20.4 9.2 35.3 300 F 1 2531 07 10 01 07 15 00 J1722+6105 02 34 06 8.4 -19.1 9.2 35.5 -5 1 1 2531 07 15 00 07 21 00 =1722+611 02 40 07 7.9 -18.5 9.3 34.3 355 F 1 2578 07 15 01 07 22 00 J1722+5856 02 41 07 6.1 -19.7 9.3 33.9 55 1 1 2578 07 22 00 07 25 00 =1721+589 02 44 08 5.9 -19.3 9.4 33.3 180 F 1 2601 07 22 01 07 34 00 J1722+5856 02 53 09 5.2 -18.3 9.5 31.5 537 1 1 2601 07 34 00 07 37 00 =1721+589 02 56 10 5.0 -18.0 9.6 30.9 180 F 1 2624 07 34 01 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 /SOFT/sched/catalogs/freq.dat Huang Xinyong 27Sept05 ****** Only 244.98 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. 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) * AMS13 17 18 01.524102 * 17 18 44.403000 17 18 50.769659 0.00 59 23 01.68907 * 59 20 00.83300 59 19 05.16131 0.00 From catalog imbedded in main SCHED input file. 1.067 scan hours, 35.134 baseline hours above horizon. * AMS14 17 18 00.510454 * 17 18 45.467000 17 18 52.132474 0.00 58 54 23.35754 * 58 51 22.50300 58 50 26.86752 0.00 From catalog imbedded in main SCHED input file. 1.067 scan hours, 35.186 baseline hours above horizon. * AMS20 17 20 16.244303 * 17 20 59.095000 17 21 05.422305 0.00 59 20 41.68858 * 59 17 50.49400 59 16 56.21974 0.00 From catalog imbedded in main SCHED input file. 1.000 scan hours, 32.369 baseline hours above horizon. * AMS17 17 20 00.448488 * 17 20 45.170000 17 20 51.770719 0.00 58 55 13.59647 * 58 52 21.33500 58 51 26.93868 0.00 From catalog imbedded in main SCHED input file. 1.067 scan hours, 35.389 baseline hours above horizon. J1642+3948 16 41 17.606231 * 16 42 58.809968 16 43 13.916489 0.26 1641+399 39 54 10.81494 * 39 48 36.99400 39 47 21.94641 0.40 * 3C345 /SOFT/sched/catalogs/sources.vlba J1642+39 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.183 scan hours, 6.013 baseline hours above horizon. * J1722+5856 17 21 52.440262 * 17 22 36.726556 17 22 43.235669 0.62 1721+589 58 59 06.49433 * 58 56 22.26071 58 55 29.01987 0.49 /SOFT/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 2.050 scan hours, 70.896 baseline hours above horizon. * J1722+6105 17 22 05.759504 * 17 22 40.059354 17 22 45.125394 0.52 1722+611 61 08 43.42147 * 61 05 59.78736 61 05 06.47932 0.45 /SOFT/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.433 scan hours, 14.013 baseline hours above horizon. * J2005+7752 20 07 20.430185 * 20 05 30.998513 20 05 09.050571 0.96 2007+777 77 43 58.12307 * 77 52 43.24760 77 53 35.90744 0.40 J2005+77 /SOFT/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.183 scan hours, 6.600 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) AMS13 94.0 AMS14 94.0 AMS20 93.7 AMS17 93.7 3C345 100.3 J1722+5856 93.5 J1722+6105 93.5 J2005+7752 86.0 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