COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: EVN Astrometry of PSR J1022+1001 Exp. Code: EY010D Schedule Version: 1.00 Processed by SCHED version: 9.40 Release Jan. 13, 2011. PI: Zhen Yan Address: Shanghai Astronomical Observatory NO.80 Nandan Road Shanghai China Phone: 86-13402136110 EMAIL: yanzhen@shao.ac.cn,zshen@shao.ac.cn Fax: 86-21-64281104 Phone during observation: 86-13402136110 Observing mode: Phase-referencing of a source at 18cm (512 Mb/s) Notes: Target source: PSR J1022+1001, s=3mJy(1.4GHz) Phase calibrator source: J1025+1253, s=0.88Jy(S-band) Fringe finder, etc: J0927+3902 (4C39.25), s=4.71Jy(S-band) Fringe finder, etc: J1310+3220 (1308+326), s=2.23Jy(S-band) Schedule for SHANGHAI (Code Sh ) Page 2 EVN Astrometry of PSR J1022+1001 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 24 Feb 2011 Day 55 --- 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 18 00 00 J0927+3902 12 21 51 53.9 -65.2 2.9 89.0 0 0 18 00 00 18 07 00 =0923+392 12 28 52 52.5 -65.1 3.0 87.9 420 27 18 00 01 18 12 30 J1025+1253 12 34 23 55.4 245.3 2.1 52.9 16 27 18 12 30 18 14 30 =1023+131 12 36 23 55.0 245.8 2.2 53.3 120 35 18 12 31 18 14 30 J1022+1001 12 36 23 52.7 242.8 2.2 50.6 -8 35 No stop 18 22 45 --- 12 44 40 51.1 244.8 2.4 51.9 487 67 18 14 31 18 23 30 J1025+1253 12 45 25 53.2 248.0 2.3 54.5 37 67 18 23 30 18 25 00 =1023+131 12 46 55 52.9 248.4 2.3 54.7 90 73 18 23 31 18 25 00 J1022+1001 12 46 55 50.6 245.4 2.4 52.2 -8 73 No stop 18 28 15 --- 12 50 11 50.0 246.1 2.4 52.7 187 85 18 25 01 18 29 00 J1025+1253 12 50 56 52.1 249.3 2.4 55.3 37 85 18 29 00 18 30 30 =1023+131 12 52 26 51.8 249.7 2.4 55.4 90 91 18 29 01 18 30 30 J1022+1001 12 52 26 49.6 246.7 2.5 53.0 -8 91 No stop 18 33 45 --- 12 55 42 48.9 247.4 2.5 53.4 187 104 18 30 31 18 33 45 J1025+1253 12 55 42 51.2 250.4 2.5 55.8 -8 104 No stop 18 35 15 =1023+131 12 57 12 50.9 250.7 2.5 56.0 82 109 18 33 46 18 35 15 J1022+1001 12 57 12 48.6 247.7 2.6 53.6 -8 109 No stop 18 38 30 --- 13 00 27 48.0 248.5 2.6 54.0 187 122 18 35 16 18 39 15 J1025+1253 13 01 13 50.1 251.6 2.6 56.4 37 122 18 39 15 18 40 45 =1023+131 13 02 43 49.8 251.9 2.6 56.6 90 128 18 39 16 18 40 45 J1022+1001 13 02 43 47.5 248.9 2.7 54.2 -8 128 No stop 18 44 00 --- 13 05 58 46.9 249.6 2.7 54.6 187 140 18 40 46 Schedule for SHANGHAI (Code Sh ) Page 3 EVN Astrometry of PSR J1022+1001 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 24 Feb 2011 Day 55 --- 18 44 00 J1025+1253 13 05 58 49.1 252.5 2.7 56.9 -8 140 No stop 18 45 30 =1023+131 13 07 29 48.8 252.9 2.7 57.1 82 146 18 44 01 18 45 30 J1022+1001 13 07 29 46.6 249.9 2.7 54.8 -8 146 No stop 18 48 45 --- 13 10 44 45.9 250.6 2.8 55.1 187 159 18 45 31 18 49 30 J1025+1253 13 11 29 48.0 253.6 2.7 57.4 37 159 18 49 30 18 51 00 =1023+131 13 12 59 47.6 253.9 2.8 57.6 90 165 18 49 31 18 51 00 J1022+1001 13 12 59 45.5 251.1 2.8 55.3 -8 165 No stop 18 54 15 --- 13 16 15 44.8 251.7 2.9 55.6 187 177 18 51 01 18 54 15 J1025+1253 13 16 15 47.0 254.6 2.8 57.8 -8 177 No stop 18 55 45 =1023+131 13 17 45 46.7 254.9 2.9 58.0 82 183 18 54 16 18 55 45 J1022+1001 13 17 45 44.5 252.0 2.9 55.8 -8 183 No stop 18 59 00 --- 13 21 01 43.8 252.6 3.0 56.1 187 195 18 55 46 18 59 45 J1025+1253 13 21 46 45.8 255.6 2.9 58.3 37 195 18 59 45 19 01 15 =1023+131 13 23 16 45.5 255.9 2.9 58.4 90 201 18 59 46 19 01 15 J1022+1001 13 23 16 43.4 253.0 3.0 56.3 -8 201 No stop 19 04 30 --- 13 26 32 42.7 253.7 3.0 56.5 187 214 19 01 16 19 04 30 J1025+1253 13 26 32 44.8 256.5 3.0 58.6 -8 214 No stop 19 06 00 =1023+131 13 28 02 44.5 256.7 3.0 58.7 82 220 19 04 31 19 06 00 J1022+1001 13 28 02 42.4 253.9 3.1 56.7 -8 220 No stop 19 09 15 --- 13 31 17 41.7 254.5 3.1 56.9 187 232 19 06 01 19 10 00 J1025+1253 13 32 03 43.7 257.4 3.1 59.0 37 232 19 10 00 19 12 00 =1023+131 13 34 03 43.3 257.8 3.1 59.1 120 240 19 10 01 19 15 55 J0927+3902 13 37 59 39.2 297.1 4.2 78.6 192 240 19 15 55 19 23 15 =0923+392 13 45 20 37.8 297.5 4.3 77.7 440 268 19 15 56 19 27 05 J1025+1253 13 49 10 40.1 260.3 3.4 60.0 188 268 19 27 05 19 29 05 =1023+131 13 51 11 39.7 260.6 3.4 60.0 120 276 19 27 06 19 29 05 J1022+1001 13 51 11 37.6 257.9 3.5 58.2 -8 276 No stop 19 32 20 --- 13 54 26 36.9 258.5 3.5 58.4 187 289 19 29 06 19 33 05 J1025+1253 13 55 11 38.8 261.2 3.5 60.2 37 289 19 33 05 19 34 35 =1023+131 13 56 42 38.5 261.5 3.5 60.3 90 294 19 33 06 Schedule for SHANGHAI (Code Sh ) Page 4 EVN Astrometry of PSR J1022+1001 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 24 Feb 2011 Day 55 --- 19 34 35 J1022+1001 13 56 42 36.4 258.8 3.6 58.5 -8 294 No stop 19 37 50 --- 13 59 57 35.7 259.3 3.6 58.7 187 307 19 34 36 19 37 50 J1025+1253 13 59 57 37.8 262.0 3.6 60.4 -8 307 No stop 19 39 20 =1023+131 14 01 27 37.5 262.2 3.6 60.5 82 313 19 37 51 19 39 20 J1022+1001 14 01 27 35.4 259.6 3.6 58.8 -8 313 No stop 19 42 35 --- 14 04 43 34.7 260.1 3.7 58.9 187 325 19 39 21 19 43 20 J1025+1253 14 05 28 36.6 262.8 3.6 60.6 37 325 19 43 20 19 44 50 =1023+131 14 06 58 36.3 263.0 3.7 60.7 90 331 19 43 21 19 44 50 J1022+1001 14 06 58 34.3 260.4 3.7 59.0 -8 331 No stop 19 48 05 --- 14 10 14 33.6 260.9 3.8 59.2 187 344 19 44 51 19 48 05 J1025+1253 14 10 14 35.6 263.5 3.7 60.8 -8 344 No stop 19 49 35 =1023+131 14 11 44 35.3 263.7 3.8 60.8 82 350 19 48 06 19 49 35 J1022+1001 14 11 44 33.3 261.2 3.8 59.2 -8 350 No stop 19 52 50 --- 14 15 00 32.6 261.6 3.9 59.3 187 362 19 49 36 19 53 35 J1025+1253 14 15 45 34.5 264.3 3.8 60.9 37 362 19 53 35 19 55 05 =1023+131 14 17 15 34.1 264.5 3.8 61.0 90 368 19 53 36 19 55 05 J1022+1001 14 17 15 32.1 262.0 3.9 59.4 -8 368 No stop 19 58 20 --- 14 20 31 31.4 262.5 3.9 59.5 187 381 19 55 06 19 58 20 J1025+1253 14 20 31 33.4 265.0 3.9 61.0 -8 381 No stop 19 59 50 =1023+131 14 22 01 33.1 265.2 3.9 61.1 82 386 19 58 21 19 59 50 J1022+1001 14 22 01 31.1 262.7 4.0 59.6 -8 386 No stop 20 03 05 --- 14 25 16 30.4 263.2 4.0 59.7 187 399 19 59 51 20 03 50 J1025+1253 14 26 01 32.3 265.8 4.0 61.1 37 399 20 03 50 20 05 20 =1023+131 14 27 32 31.9 266.0 4.0 61.2 90 405 20 03 51 20 05 20 J1022+1001 14 27 32 29.9 263.5 4.1 59.7 -8 405 No stop 20 08 35 --- 14 30 47 29.2 263.9 4.1 59.8 187 417 20 05 21 20 08 35 J1025+1253 14 30 47 31.3 266.4 4.1 61.2 -8 417 No stop 20 10 05 =1023+131 14 32 17 30.9 266.6 4.1 61.2 82 423 20 08 36 20 10 05 J1022+1001 14 32 17 28.9 264.2 4.1 59.9 -8 423 No stop 20 13 20 --- 14 35 33 28.2 264.6 4.2 59.9 187 436 20 10 06 Schedule for SHANGHAI (Code Sh ) Page 5 EVN Astrometry of PSR J1022+1001 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 24 Feb 2011 Day 55 --- 20 14 05 J1025+1253 14 36 18 30.1 267.2 4.2 61.3 37 436 20 14 05 20 15 35 =1023+131 14 37 48 29.8 267.4 4.2 61.3 90 442 20 14 06 20 15 35 J1022+1001 14 37 48 27.7 264.9 4.2 60.0 -8 442 No stop 20 18 50 --- 14 41 04 27.0 265.4 4.3 60.1 187 454 20 15 36 20 18 50 J1025+1253 14 41 04 29.1 267.8 4.2 61.4 -8 454 No stop 20 20 20 =1023+131 14 42 34 28.7 268.0 4.3 61.4 82 460 20 18 51 20 20 20 J1022+1001 14 42 34 26.7 265.6 4.3 60.1 -8 460 No stop 20 23 35 --- 14 45 50 26.0 266.0 4.4 60.1 187 473 20 20 21 20 24 20 J1025+1253 14 46 35 27.9 268.5 4.3 61.4 37 473 20 24 20 20 25 50 =1023+131 14 48 05 27.6 268.7 4.4 61.4 90 478 20 24 21 20 25 50 J1022+1001 14 48 05 25.5 266.3 4.4 60.2 -8 478 No stop 20 29 05 --- 14 51 21 24.8 266.8 4.5 60.2 187 491 20 25 51 20 29 05 J1025+1253 14 51 21 26.9 269.2 4.4 61.4 -8 491 No stop 20 30 35 =1023+131 14 52 51 26.5 269.4 4.4 61.4 82 497 20 29 06 20 30 35 J1022+1001 14 52 51 24.5 267.0 4.5 60.2 -8 497 No stop 20 33 50 --- 14 56 06 23.8 267.4 4.5 60.3 187 509 20 30 36 20 34 35 J1025+1253 14 56 51 25.7 269.9 4.5 61.4 38 509 20 34 35 20 36 05 =1023+131 14 58 22 25.4 270.1 4.5 61.4 90 515 20 34 36 20 36 05 J1022+1001 14 58 22 23.3 267.7 4.6 60.3 -8 515 No stop 20 39 20 --- 15 01 37 22.6 268.1 4.6 60.3 187 528 20 36 06 20 39 20 J1025+1253 15 01 37 24.7 270.5 4.6 61.4 -7 528 No stop 20 40 50 =1023+131 15 03 07 24.3 270.7 4.6 61.4 83 534 20 39 21 20 40 50 J1022+1001 15 03 07 22.3 268.3 4.7 60.3 -8 534 No stop 20 44 05 --- 15 06 23 21.6 268.8 4.7 60.4 187 546 20 40 51 20 44 50 J1025+1253 15 07 08 23.5 271.2 4.7 61.4 38 546 20 44 50 20 46 20 =1023+131 15 08 38 23.2 271.4 4.7 61.4 90 552 20 44 51 20 46 20 J1022+1001 15 08 38 21.1 269.1 4.8 60.4 -8 552 No stop 20 49 35 --- 15 11 54 20.4 269.5 4.8 60.4 187 564 20 46 21 20 49 35 J1025+1253 15 11 54 22.5 271.8 4.8 61.4 -7 564 No stop 20 51 05 =1023+131 15 13 24 22.1 272.0 4.8 61.4 83 570 20 49 36 Schedule for SHANGHAI (Code Sh ) Page 6 EVN Astrometry of PSR J1022+1001 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 24 Feb 2011 Day 55 --- 20 51 05 J1022+1001 15 13 24 20.1 269.7 4.8 60.4 -8 570 No stop 20 54 20 --- 15 16 40 19.4 270.1 4.9 60.4 187 583 20 51 06 20 55 05 J1025+1253 15 17 25 21.3 272.5 4.8 61.3 38 583 20 55 05 20 56 35 =1023+131 15 18 55 21.0 272.7 4.9 61.3 90 589 20 55 06 20 56 35 J1022+1001 15 18 55 18.9 270.4 4.9 60.4 -8 589 No stop 20 59 50 --- 15 22 11 18.2 270.8 5.0 60.4 187 601 20 56 36 20 59 50 J1025+1253 15 22 11 20.3 273.1 4.9 61.3 -7 601 No stop 21 01 20 =1023+131 15 23 41 19.9 273.3 5.0 61.3 83 607 20 59 51 21 01 20 J1022+1001 15 23 41 17.9 271.0 5.0 60.4 -8 607 No stop 21 04 35 --- 15 26 56 17.2 271.4 5.1 60.4 187 620 21 01 21 21 05 20 J1025+1253 15 27 42 19.1 273.8 5.0 61.2 37 620 21 05 20 21 06 50 =1023+131 15 29 12 18.8 274.0 5.0 61.2 90 625 21 05 21 21 06 50 J1022+1001 15 29 12 16.7 271.7 5.1 60.3 -8 625 No stop 21 10 05 --- 15 32 27 16.0 272.1 5.1 60.3 187 638 21 06 51 21 10 05 J1025+1253 15 32 27 18.1 274.4 5.1 61.1 -8 638 No stop 21 11 35 =1023+131 15 33 58 17.7 274.6 5.1 61.1 82 644 21 10 06 21 11 35 J1022+1001 15 33 58 15.7 272.3 5.2 60.3 -8 644 No stop 21 14 50 --- 15 37 13 15.0 272.7 5.2 60.3 187 656 21 11 36 21 15 35 J1025+1253 15 37 58 16.9 275.0 5.2 61.0 37 656 21 15 35 21 17 05 =1023+131 15 39 28 16.6 275.2 5.2 61.0 90 662 21 15 36 21 17 05 J1022+1001 15 39 28 14.5 273.0 5.3 60.3 -8 662 No stop 21 20 20 --- 15 42 44 13.8 273.4 5.3 60.2 187 675 21 17 06 21 20 20 J1025+1253 15 42 44 15.9 275.6 5.3 60.9 -8 675 No stop 21 21 50 =1023+131 15 44 14 15.6 275.8 5.3 60.9 82 681 21 20 21 21 21 50 J1022+1001 15 44 14 13.5 273.6 5.3 60.2 -8 681 No stop 21 25 05 --- 15 47 30 12.8 274.0 5.4 60.1 187 693 21 21 51 21 25 50 J1025+1253 15 48 15 14.7 276.3 5.4 60.8 37 693 21 25 50 21 27 20 =1023+131 15 49 45 14.4 276.5 5.4 60.8 90 699 21 25 51 21 27 20 J1022+1001 15 49 45 12.3 274.3 5.4 60.1 -8 699 No stop 21 30 35 --- 15 53 01 11.6 274.7 5.5 60.0 187 712 21 27 21 Schedule for SHANGHAI (Code Sh ) Page 7 EVN Astrometry of PSR J1022+1001 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 24 Feb 2011 Day 55 --- 21 30 35 J1025+1253 15 53 01 13.7 276.9 5.4 60.7 -8 712 No stop 21 32 05 =1023+131 15 54 31 13.4 277.1 5.5 60.6 82 717 21 30 36 21 32 05 J1022+1001 15 54 31 11.3 274.9 5.5 60.0 -8 717 No stop 21 35 20 --- 15 57 46 10.6 275.3 5.6 60.0 187 730 21 32 06 21 36 05 J1025+1253 15 58 32 12.5 277.6 5.5 60.5 37 730 21 36 05 21 37 35 =1023+131 16 00 02 12.2 277.8 5.6 60.5 90 736 21 36 06 21 37 35 J1022+1001 16 00 02 10.1 275.6 5.6 59.9 -8 736 No stop 21 40 50 --- 16 03 17 9.4 276.0 5.7 59.8 187 748 21 37 36 21 40 50 J1025+1253 16 03 17 11.5 278.2 5.6 60.4 -8 748 No stop 21 42 20 =1023+131 16 04 48 11.2 278.3 5.6 60.3 82 754 21 40 51 21 42 20 J1022+1001 16 04 48 9.1 276.2 5.7 59.8 -8 754 No stop 21 45 35 --- 16 08 03 8.4 276.6 5.7 59.7 187 767 21 42 21 21 46 20 J1025+1253 16 08 48 10.3 278.8 5.7 60.2 37 767 21 46 20 21 48 20 =1023+131 16 10 49 9.9 279.1 5.7 60.1 120 774 21 46 21 21 53 05 J1310+3220 16 15 34 51.0 284.2 3.1 79.0 211 774 21 53 05 22 00 00 =1308+326 16 22 30 49.6 284.7 3.2 78.4 415 801 21 53 06 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: eyan.18cm Matching groups in /psr/soft/sched9.4/catalogs/freq.dat: sh18cm Huang Xinyong 27Sept05 Setup group: 7 Station: SHANGHAI Total bit rate: 512 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 DBE type: 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: 7 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 SOURCES USED IN RECORDING SCANS -- EVN Astrometry of PSR J1022+1001 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) * J1022+1001 10 20 19.263127 * 10 22 57.995628 10 23 35.816347 0.00 10 17 03.79035 * 10 01 52.61483 09 58 14.74628 0.00 From catalog imbedded in main SCHED input file. 2.087 scan and 101.976 baseline hours in setup: eyan.18cm * J0927+3902 09 23 55.319214 * 09 27 03.013935 09 27 47.749853 0.26 0923+392 39 15 23.56647 * 39 02 20.85187 38 59 16.13565 0.40 4C39.25 From catalog imbedded in main SCHED input file. J0927+39 VLBA Calib Survey - GSFC sols. - created L.Petrov 2008a_astro 0.239 scan and 13.139 baseline hours in setup: eyan.18cm * J1025+1253 10 23 16.285228 * 10 25 56.285369 10 26 34.405706 0.31 1023+131 13 09 05.49493 * 12 53 49.02205 12 50 09.91298 0.21 From catalog imbedded in main SCHED input file. VLBA Calib Survey - GSFC sols. - created L.Petrov 2008a_astro 1.008 scan and 46.419 baseline hours in setup: eyan.18cm * J1310+3220 13 08 07.560131 * 13 10 28.663850 13 11 02.203249 0.24 1308+326 32 36 40.23883 * 32 20 43.78290 32 16 50.31523 0.40 J1310+32 From catalog imbedded in main SCHED input file. VLBA Calib Survey - GSFC sols. - created L.Petrov 2008a_astro 0.115 scan and 6.340 baseline hours in setup: eyan.18cm 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) J1022+1001 178.2 J0927+3902 147.2 J1025+1253 176.4 J1310+3220 136.5 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