COVER INFORMATION Station: HART (Code Hh ) Experiment: Short Observation of an NVSS source Exp. Code: AAH01 Schedule Version: 3.00 Processed by SCHED version: 6.04 March 2006 PI: E. Angelakis Address: Max Planck Institute for Radio Astronomy Auf dem Huegel 69 53121 Bonn Germany Phone: +49 228 525 366 EMAIL: angelaki@mpifr-bonn.mpg.de Fax: +49 228 525 229 Phone during observation: +49 228 525 366 Observing mode: 6cm MkIV 128 Mb/s Notes: Observing at Shanghai ends early (0730UT) since target sets earl Schedule changed following advice from Z. Paragi/C. Reynolds Added 0234+285 and increased fringe finder scans to 10mins Thank you in advance for your efforts Schedule for HART (Code Hh ) Page 2 Short Observation of an NVSS source 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 18 Jun 2006 Day 169 --- Next scan frequencies: 4982.49 4982.49 4990.49 4990.49 Next BBC frequencies: 382.49 382.49 390.49 390.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 05 30 00 0234+285 01 06 02 31.0 23.6 -1.5 0.0 0 1 1 0 05 30 00 05 40 00 --- 01 16 03 31.8 21.2 -1.4 0.0 600 F 1 10 05 30 04 05 45 35 J0334+0800 01 21 39 43.1 48.2 -2.2 0.0 266 1 1 10 05 45 35 05 48 35 =0332+078 01 24 39 43.6 47.5 -2.2 0.0 180 F 1 13 05 45 39 05 49 42 J0259-0019 01 25 46 55.8 45.2 -1.6 0.0 22 1 1 13 05 49 42 05 51 42 =0256-005 01 27 47 56.1 44.5 -1.5 0.0 120 F 1 15 05 49 46 05 51 42 J025515+0037 01 27 47 56.0 42.0 -1.5 0.0 -28 1 1 15 05 51 42 05 55 42 --- 01 31 47 56.6 40.5 -1.4 0.0 212 F 1 18 05 51 46 05 55 42 J0259-0019 01 31 47 56.8 43.1 -1.5 0.0 -28 1 1 18 05 55 42 05 57 42 =0256-005 01 33 48 57.1 42.4 -1.4 0.0 92 F 1 20 05 55 46 05 59 03 J0423-0120 01 35 10 42.6 65.7 -2.8 0.0 13 1 1 20 05 59 03 06 01 03 =0420-014 01 37 10 43.1 65.3 -2.8 0.0 120 F 1 22 05 59 07 06 02 24 J0334+0800 01 38 31 45.8 43.8 -1.9 0.0 29 1 1 22 06 02 24 06 05 24 =0332+078 01 41 31 46.3 43.0 -1.9 0.0 180 F 1 25 06 02 28 06 06 31 J0259-0019 01 42 39 58.4 39.0 -1.3 0.0 22 1 1 25 06 06 31 06 08 31 =0256-005 01 44 39 58.7 38.2 -1.3 0.0 120 F 1 27 06 06 35 06 08 31 J025515+0037 01 44 39 58.4 35.5 -1.2 0.0 -28 1 1 27 06 08 31 06 12 31 --- 01 48 40 58.9 33.9 -1.1 0.0 212 F 1 31 06 08 35 06 12 31 J0259-0019 01 48 40 59.2 36.6 -1.2 0.0 -28 1 1 31 06 12 31 06 14 31 =0256-005 01 50 40 59.5 35.8 -1.2 0.0 92 F 1 33 06 12 35 06 14 31 J025515+0037 01 50 40 59.2 33.0 -1.1 0.0 -28 1 1 33 06 14 31 06 18 31 --- 01 54 41 59.7 31.3 -1.0 0.0 212 F 1 37 06 14 35 06 18 31 J0259-0019 01 54 41 60.0 34.1 -1.1 0.0 -28 1 1 37 06 18 31 06 20 31 =0256-005 01 56 41 60.2 33.2 -1.1 0.0 92 F 1 39 06 18 35 06 21 38 J0334+0800 01 57 48 48.6 38.2 -1.6 0.0 22 1 1 39 06 21 38 06 23 38 =0332+078 01 59 48 48.9 37.5 -1.6 0.0 120 F 1 41 06 21 42 Schedule for HART (Code Hh ) Page 3 Short Observation of an NVSS source 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 18 Jun 2006 Day 169 --- 06 24 46 J0259-0019 02 00 57 60.7 31.3 -1.0 0.0 23 1 1 41 06 24 46 06 26 46 =0256-005 02 02 57 61.0 30.4 -0.9 0.0 120 F 1 43 06 24 50 06 26 46 J025515+0037 02 02 57 60.6 27.6 -0.9 0.0 -28 1 1 43 06 26 46 06 30 46 --- 02 06 58 61.0 25.7 -0.8 0.0 212 F 1 46 06 26 50 06 30 46 J0259-0019 02 06 58 61.4 28.5 -0.9 0.0 -28 1 1 46 06 30 46 06 32 46 =0256-005 02 08 58 61.6 27.6 -0.8 0.0 92 F 1 48 06 30 50 06 32 46 J025515+0037 02 08 58 61.2 24.8 -0.8 0.0 -28 1 1 48 06 32 46 06 36 46 --- 02 12 59 61.5 22.8 -0.7 0.0 212 F 1 52 06 32 50 06 36 46 J0259-0019 02 12 59 62.0 25.6 -0.8 0.0 -28 1 1 52 06 36 46 06 38 46 =0256-005 02 14 59 62.2 24.6 -0.7 0.0 92 F 1 54 06 36 50 06 39 53 J0334+0800 02 16 06 51.0 32.2 -1.3 0.0 23 1 1 54 06 39 53 06 41 53 =0332+078 02 18 07 51.3 31.5 -1.3 0.0 120 F 1 56 06 39 57 06 43 02 J0259-0019 02 19 16 62.6 22.5 -0.7 0.0 24 1 1 56 06 43 02 06 45 02 =0256-005 02 21 16 62.8 21.5 -0.6 0.0 120 F 1 58 06 43 06 06 45 02 J025515+0037 02 21 16 62.2 18.6 -0.6 0.0 -28 1 1 58 06 45 02 06 49 02 --- 02 25 17 62.5 16.6 -0.5 0.0 212 F 1 62 06 45 06 06 49 02 J0259-0019 02 25 17 63.1 19.4 -0.6 0.0 -28 1 1 62 06 49 02 06 51 02 =0256-005 02 27 17 63.2 18.3 -0.5 0.0 92 F 1 64 06 49 06 06 51 02 J025515+0037 02 27 17 62.6 15.5 -0.5 0.0 -28 1 1 64 06 51 02 06 55 02 --- 02 31 18 62.8 13.4 -0.4 0.0 212 F 1 68 06 51 06 06 55 02 J0259-0019 02 31 18 63.5 16.1 -0.5 0.0 -28 1 1 68 06 55 02 06 57 02 =0256-005 02 33 18 63.6 15.0 -0.4 0.0 92 F 1 70 06 55 06 06 58 10 J0334+0800 02 34 26 53.0 25.6 -1.0 0.0 23 1 1 70 06 58 10 07 00 10 =0332+078 02 36 26 53.2 24.8 -1.0 0.0 120 F 1 72 06 58 14 07 01 19 J0259-0019 02 37 36 63.9 12.7 -0.4 0.0 24 1 1 72 07 01 19 07 03 19 =0256-005 02 39 36 64.0 11.6 -0.3 0.0 120 F 1 74 07 01 23 07 03 19 J025515+0037 02 39 36 63.2 8.9 -0.3 0.0 -28 1 1 74 07 03 19 07 07 19 --- 02 43 37 63.3 6.7 -0.2 0.0 212 F 1 77 07 03 23 07 07 19 J0259-0019 02 43 37 64.1 9.3 -0.3 0.0 -28 1 1 77 07 07 19 07 09 19 =0256-005 02 45 37 64.2 8.2 -0.2 0.0 92 F 1 79 07 07 23 Schedule for HART (Code Hh ) Page 4 Short Observation of an NVSS source 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 18 Jun 2006 Day 169 --- 07 09 19 J025515+0037 02 45 37 63.3 5.6 -0.2 0.0 -28 1 1 79 07 09 19 07 13 19 --- 02 49 38 63.4 3.3 -0.1 0.0 212 F 1 83 07 09 23 07 13 19 J0259-0019 02 49 38 64.3 5.9 -0.2 0.0 -28 1 1 83 07 13 19 07 15 19 =0256-005 02 51 38 64.3 4.7 -0.1 0.0 92 F 1 85 07 13 23 07 18 04 3C84 02 54 23 22.3 5.2 -0.4 0.0 54 1 1 85 07 18 04 07 28 04 --- 03 04 25 22.5 3.2 -0.3 0.0 600 F 1 95 07 18 08 07 30 22 J0334+0800 03 06 44 55.4 12.5 -0.5 0.0 44 1 1 95 07 30 22 07 32 22 =0332+078 03 08 44 55.5 11.6 -0.4 0.0 120 F 1 97 07 30 26 07 33 32 J0259-0019 03 09 54 64.3 354.2 0.2 0.0 24 1 1 97 07 33 32 07 35 32 =0256-005 03 11 54 64.3 353.0 0.2 0.0 120 F 1 99 07 33 36 07 35 32 J025515+0037 03 11 54 63.2 350.9 0.3 0.0 -28 1 1 99 07 35 32 07 39 32 --- 03 15 55 63.0 348.7 0.3 0.0 212 F 1 103 07 35 36 07 39 32 J0259-0019 03 15 55 64.1 350.7 0.3 0.0 -28 1 1 103 07 39 32 07 41 32 =0256-005 03 17 55 64.0 349.6 0.3 0.0 92 F 1 105 07 39 36 07 41 32 J025515+0037 03 17 55 62.9 347.7 0.4 0.0 -28 1 1 105 07 41 32 07 45 32 --- 03 21 56 62.7 345.5 0.4 0.0 212 F 1 108 07 41 36 07 45 32 J0259-0019 03 21 56 63.9 347.4 0.4 0.0 -28 1 1 108 07 45 32 07 47 32 =0256-005 03 23 56 63.8 346.2 0.4 0.0 92 F 1 110 07 45 36 07 48 39 J0334+0800 03 25 03 56.0 4.5 -0.2 0.0 23 1 1 110 07 48 39 07 50 39 =0332+078 03 27 04 56.0 3.6 -0.1 0.0 120 F 1 112 07 48 43 07 51 48 J0259-0019 03 28 13 63.5 343.9 0.5 0.0 24 1 1 112 07 51 48 07 53 48 =0256-005 03 30 13 63.4 342.8 0.5 0.0 120 F 1 114 07 51 52 07 53 48 J025515+0037 03 30 13 62.2 341.2 0.6 0.0 -28 1 1 114 07 53 48 07 57 48 --- 03 34 14 61.9 339.1 0.6 0.0 212 F 1 118 07 53 52 07 57 48 J0259-0019 03 34 14 63.1 340.7 0.6 0.0 -28 1 1 118 07 57 48 07 59 48 =0256-005 03 36 14 62.9 339.6 0.6 0.0 92 F 1 120 07 57 52 07 59 48 J025515+0037 03 36 14 61.7 338.1 0.7 0.0 -28 1 1 120 07 59 48 08 03 48 --- 03 40 15 61.3 336.2 0.7 0.0 212 F 1 124 07 59 52 08 03 48 J0259-0019 03 40 15 62.6 337.5 0.7 0.0 -28 1 1 124 08 03 48 08 05 48 =0256-005 03 42 15 62.4 336.5 0.7 0.0 92 F 1 126 08 03 52 Schedule for HART (Code Hh ) Page 5 Short Observation of an NVSS source 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 18 Jun 2006 Day 169 --- 08 06 55 J0334+0800 03 43 22 56.0 356.4 0.1 0.0 22 1 1 126 08 06 55 08 08 55 =0332+078 03 45 22 56.0 355.5 0.2 0.0 120 F 1 128 08 06 59 08 10 03 J0259-0019 03 46 31 62.0 334.4 0.8 0.0 23 1 1 128 08 10 03 08 12 03 =0256-005 03 48 31 61.8 333.4 0.8 0.0 120 F 1 130 08 10 07 08 12 03 J025515+0037 03 48 31 60.5 332.3 0.9 0.0 -28 1 1 130 08 12 03 08 16 03 --- 03 52 32 60.1 330.4 0.9 0.0 212 F 1 134 08 12 07 08 16 03 J0259-0019 03 52 32 61.4 331.5 0.9 0.0 -28 1 1 134 08 16 03 08 18 03 =0256-005 03 54 32 61.2 330.6 0.9 0.0 92 F 1 135 08 16 07 08 18 03 J025515+0037 03 54 32 59.9 329.5 1.0 0.0 -28 1 1 135 08 18 03 08 22 03 --- 03 58 33 59.4 327.8 1.0 0.0 212 F 1 139 08 18 07 08 22 03 J0259-0019 03 58 33 60.8 328.7 1.0 0.0 -28 1 1 139 08 22 03 08 24 03 =0256-005 04 00 33 60.5 327.8 1.0 0.0 92 F 1 141 08 22 07 08 25 08 J0334+0800 04 01 39 55.5 348.4 0.4 0.0 21 1 1 141 08 25 08 08 27 08 =0332+078 04 03 39 55.4 347.5 0.5 0.0 120 F 1 143 08 25 12 08 28 15 J0259-0019 04 04 46 60.0 326.0 1.1 0.0 22 1 1 143 08 28 15 08 30 15 =0256-005 04 06 47 59.7 325.1 1.1 0.0 120 F 1 145 08 28 19 08 30 15 J025515+0037 04 06 47 58.4 324.3 1.2 0.0 -28 1 1 145 08 30 15 08 34 15 --- 04 10 47 57.8 322.7 1.3 0.0 212 F 1 149 08 30 19 08 34 15 J0259-0019 04 10 47 59.2 323.4 1.2 0.0 -28 1 1 149 08 34 15 08 36 15 =0256-005 04 12 48 58.9 322.6 1.2 0.0 92 F 1 151 08 34 19 08 36 15 J025515+0037 04 12 48 57.6 321.9 1.3 0.0 -28 1 1 151 08 36 15 08 40 15 --- 04 16 48 57.0 320.4 1.4 0.0 212 F 1 155 08 36 19 08 40 15 J0259-0019 04 16 48 58.4 321.0 1.3 0.0 -28 1 1 155 08 40 15 08 42 15 =0256-005 04 18 49 58.1 320.2 1.3 0.0 92 F 1 157 08 40 19 08 43 19 J0334+0800 04 19 52 54.4 340.8 0.7 0.0 19 1 1 157 08 43 19 08 45 19 =0332+078 04 21 53 54.2 340.0 0.8 0.0 120 F 1 159 08 43 23 08 46 25 J0259-0019 04 22 58 57.5 318.6 1.4 0.0 20 1 1 159 08 46 25 08 48 25 =0256-005 04 24 59 57.2 317.9 1.4 0.0 120 F 1 161 08 46 29 08 48 25 J025515+0037 04 24 59 55.8 317.4 1.5 0.0 -28 1 1 161 08 48 25 08 52 25 --- 04 28 59 55.2 316.0 1.6 0.0 212 F 1 165 08 48 29 Schedule for HART (Code Hh ) Page 6 Short Observation of an NVSS source 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 18 Jun 2006 Day 169 --- 08 52 25 J0259-0019 04 28 59 56.6 316.5 1.5 0.0 -28 1 1 165 08 52 25 08 54 25 =0256-005 04 31 00 56.3 315.7 1.5 0.0 92 F 1 166 08 52 29 08 54 25 J025515+0037 04 31 00 54.9 315.4 1.6 0.0 -28 1 1 166 08 54 25 08 58 25 --- 04 35 00 54.2 314.0 1.7 0.0 212 F 1 170 08 54 29 08 58 25 J0259-0019 04 35 00 55.6 314.4 1.6 0.0 -28 1 1 170 08 58 25 09 00 25 =0256-005 04 37 01 55.3 313.7 1.6 0.0 92 F 1 172 08 58 29 09 01 26 J0334+0800 04 38 02 52.8 333.7 1.0 0.0 17 1 1 172 09 01 26 09 03 26 =0332+078 04 40 03 52.6 332.9 1.1 0.0 120 F 1 174 09 01 30 09 04 29 J0259-0019 04 41 06 54.6 312.3 1.7 0.0 18 1 1 174 09 04 29 09 06 29 =0256-005 04 43 07 54.3 311.7 1.7 0.0 120 F 1 176 09 04 33 09 06 29 J025515+0037 04 43 07 52.9 311.5 1.8 0.0 -28 1 1 176 09 06 29 09 10 29 --- 04 47 07 52.2 310.3 1.9 0.0 212 F 1 180 09 06 33 09 10 29 J0259-0019 04 47 07 53.6 310.4 1.8 0.0 -28 1 1 180 09 10 29 09 12 29 =0256-005 04 49 08 53.3 309.8 1.8 0.0 92 F 1 182 09 10 33 09 12 29 J025515+0037 04 49 08 51.8 309.7 1.9 0.0 -28 1 1 182 09 12 29 09 16 29 --- 04 53 08 51.1 308.5 2.0 0.0 212 F 1 186 09 12 33 09 16 29 J0259-0019 04 53 08 52.6 308.6 1.9 0.0 -28 1 1 186 09 16 29 09 18 29 =0256-005 04 55 09 52.2 308.1 1.9 0.0 92 F 1 188 09 16 33 09 19 29 J0334+0800 04 56 08 50.8 327.2 1.3 0.0 15 1 1 188 09 19 29 09 21 29 =0332+078 04 58 08 50.5 326.5 1.4 0.0 120 F 1 190 09 19 33 09 22 29 J0259-0019 04 59 09 51.5 306.9 2.0 0.0 15 1 1 190 09 22 29 09 24 29 =0256-005 05 01 09 51.1 306.4 2.0 0.0 120 F 1 192 09 22 33 09 24 29 J025515+0037 05 01 09 49.7 306.3 2.1 0.0 -28 1 1 192 09 24 29 09 28 29 --- 05 05 10 49.0 305.3 2.2 0.0 212 F 1 195 09 24 33 09 28 29 J0259-0019 05 05 10 50.4 305.3 2.1 0.0 -28 1 1 195 09 28 29 09 30 29 =0256-005 05 07 10 50.0 304.8 2.1 0.0 92 F 1 197 09 28 33 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: aah-128-6cm Matches group hh6cm in /homes/antonios/sched/catalogs/freq.dat Values confirmed by E-mail Jonathan Quick 221105 (CR) Setup group: 5 Station: HART Total bit rate: 128 Format: MKIV1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Speedup factor: 2.00 Disk used to record data. 1st LO= 4600.00 4600.00 4600.00 4600.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 2 1 4 3 BBC SB= U U U U IF = 2N 1N 2N 1N The following frequency sets based on this setup were used. Frequency Set: 5 Setup file default. No pcal detection. LO sum= 4982.49 4982.49 4990.49 4990.49 BBC fr= 382.49 382.49 390.49 390.49 Bandwd= 8.000 8.000 8.000 8.000 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_off SOURCE LIST -- Short Observation of an NVSS source 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) * J025515+0037 02 52 40.915843 * 02 55 15.092000 02 55 34.034521 0.00 00 25 33.55765 * 00 37 40.60600 00 39 19.34279 0.00 From catalog imbedded in main SCHED input file. 1.467 scan hours, 13.788 baseline hours above horizon. * J0259-0019 02 56 55.117067 * 02 59 28.516147 02 59 47.347971 0.23 0256-005 -00 31 54.17433 *-00 19 59.97487 -00 18 22.56364 0.40 From catalog imbedded in main SCHED input file. VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 1.133 scan hours, 10.555 baseline hours above horizon. J0237+2848 02 34 55.589592 * 02 37 52.405679 02 38 14.005041 0.23 * 0234+285 28 35 11.40780 * 28 48 08.99005 28 49 46.83148 0.40 J0237+28 /homes/antonios/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.167 scan hours, 2.500 baseline hours above horizon. J0319+4130 03 16 29.567289 * 03 19 48.160119 03 20 12.112326 0.28 0316+413 41 19 51.91677 * 41 30 42.10389 41 32 03.60590 0.41 * 3C84 /homes/antonios/sched/catalogs/sources.vlba J0319+41 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.167 scan hours, 2.500 baseline hours above horizon. * J0334+0800 03 32 12.105504 * 03 34 53.316678 03 35 12.974887 0.35 0332+078 07 50 16.73545 * 08 00 14.41894 08 01 35.93341 0.43 J0334+08 /homes/antonios/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.433 scan hours, 5.500 baseline hours above horizon. * J0423-0120 04 20 43.539852 * 04 23 15.800729 04 23 34.231071 0.20 0420-014 -01 27 28.70007 *-01 20 33.06537 -01 19 32.51363 0.30 J0423-01 /homes/antonios/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.033 scan hours, 0.500 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) J025515+0037 47.3 J0259-0019 46.9 0234+285 42.4 3C84 35.4 J0334+0800 35.0 J0423-0120 31.9 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