COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: EVN Astrometry of PSR J1022+1001 Exp. Code: EY010E 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 9 Jun 2011 Day 160 --- 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 11 20 00 J0927+3902 12 34 44 51.4 -65.0 3.1 87.0 0 0 11 20 00 11 27 00 =0923+392 12 41 45 50.0 -64.9 3.2 86.0 420 27 11 20 01 11 32 30 J1025+1253 12 47 16 52.9 248.5 2.3 54.8 13 27 11 32 30 11 34 30 =1023+131 12 49 16 52.5 249.0 2.4 55.0 120 35 11 32 31 11 34 30 J1022+1001 12 49 16 50.2 245.9 2.4 52.5 -8 35 No stop 11 42 45 --- 12 57 32 48.6 247.8 2.6 53.6 487 67 11 34 31 11 43 30 J1025+1253 12 58 18 50.6 251.0 2.5 56.1 37 67 11 43 30 11 45 00 =1023+131 12 59 48 50.3 251.3 2.6 56.3 90 73 11 43 31 11 45 00 J1022+1001 12 59 48 48.1 248.3 2.6 53.9 -8 73 No stop 11 48 15 --- 13 03 03 47.5 249.0 2.7 54.3 187 85 11 45 01 11 49 00 J1025+1253 13 03 48 49.5 252.1 2.6 56.7 37 85 11 49 00 11 50 30 =1023+131 13 05 19 49.2 252.4 2.6 56.8 90 91 11 49 01 11 50 30 J1022+1001 13 05 19 47.0 249.5 2.7 54.5 -8 91 No stop 11 53 45 --- 13 08 34 46.3 250.2 2.7 54.9 187 104 11 50 31 11 53 45 J1025+1253 13 08 34 48.6 253.1 2.7 57.2 -8 104 No stop 11 55 15 =1023+131 13 10 04 48.2 253.4 2.7 57.3 82 109 11 53 46 11 55 15 J1022+1001 13 10 04 46.0 250.5 2.8 55.0 -8 109 No stop 11 58 30 --- 13 13 20 45.4 251.1 2.8 55.4 187 122 11 55 16 11 59 15 J1025+1253 13 14 05 47.4 254.2 2.8 57.7 37 122 11 59 15 12 00 45 =1023+131 13 15 35 47.1 254.4 2.8 57.8 90 128 11 59 16 12 00 45 J1022+1001 13 15 35 44.9 251.6 2.9 55.6 -8 128 No stop 12 04 00 --- 13 18 51 44.3 252.2 2.9 55.9 187 140 12 00 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 9 Jun 2011 Day 160 --- 12 04 00 J1025+1253 13 18 51 46.4 255.1 2.9 58.1 -8 140 No stop 12 05 30 =1023+131 13 20 21 46.1 255.3 2.9 58.2 82 146 12 04 01 12 05 30 J1022+1001 13 20 21 44.0 252.5 2.9 56.0 -8 146 No stop 12 08 45 --- 13 23 37 43.3 253.1 3.0 56.3 187 159 12 05 31 12 09 30 J1025+1253 13 24 22 45.3 256.1 3.0 58.5 37 159 12 09 30 12 11 00 =1023+131 13 25 52 45.0 256.3 3.0 58.6 90 165 12 09 31 12 11 00 J1022+1001 13 25 52 42.8 253.5 3.0 56.5 -8 165 No stop 12 14 15 --- 13 29 08 42.2 254.1 3.1 56.8 187 177 12 11 01 12 14 15 J1025+1253 13 29 08 44.3 256.9 3.0 58.8 -8 177 No stop 12 15 45 =1023+131 13 30 38 44.0 257.2 3.1 58.9 82 183 12 14 16 12 15 45 J1022+1001 13 30 38 41.8 254.4 3.1 56.9 -8 183 No stop 12 19 00 --- 13 33 53 41.2 255.0 3.2 57.1 187 195 12 15 46 12 19 45 J1025+1253 13 34 38 43.2 257.9 3.1 59.2 37 195 12 19 45 12 21 15 =1023+131 13 36 09 42.8 258.1 3.2 59.3 90 201 12 19 46 12 21 15 J1022+1001 13 36 09 40.7 255.4 3.2 57.3 -8 201 No stop 12 24 30 --- 13 39 24 40.0 256.0 3.3 57.5 187 214 12 21 16 12 24 30 J1025+1253 13 39 24 42.2 258.7 3.2 59.4 -8 214 No stop 12 26 00 =1023+131 13 40 55 41.8 258.9 3.2 59.5 82 220 12 24 31 12 26 00 J1022+1001 13 40 55 39.7 256.2 3.3 57.6 -8 220 No stop 12 29 15 --- 13 44 10 39.0 256.8 3.3 57.8 187 232 12 26 01 12 30 00 J1025+1253 13 44 55 41.0 259.6 3.3 59.7 37 232 12 30 00 12 32 00 =1023+131 13 46 55 40.6 259.9 3.3 59.8 120 240 12 30 01 12 35 55 J0927+3902 13 50 51 36.7 297.8 4.4 77.0 193 240 12 35 55 12 43 15 =0923+392 13 58 12 35.3 298.2 4.5 76.1 440 268 12 35 56 12 47 05 J1025+1253 14 02 03 37.4 262.3 3.6 60.5 190 268 12 47 05 12 49 05 =1023+131 14 04 03 36.9 262.6 3.6 60.6 120 276 12 47 06 12 49 05 J1022+1001 14 04 03 34.9 260.0 3.7 58.9 -8 276 No stop 12 52 20 --- 14 07 19 34.2 260.5 3.7 59.0 187 289 12 49 06 12 53 05 J1025+1253 14 08 04 36.1 263.2 3.7 60.7 37 289 12 53 05 12 54 35 =1023+131 14 09 34 35.8 263.4 3.7 60.7 90 294 12 53 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 9 Jun 2011 Day 160 --- 12 54 35 J1022+1001 14 09 34 33.7 260.8 3.8 59.1 -8 294 No stop 12 57 50 --- 14 12 50 33.0 261.3 3.8 59.3 187 307 12 54 36 12 57 50 J1025+1253 14 12 50 35.1 263.9 3.8 60.8 -8 307 No stop 12 59 20 =1023+131 14 14 20 34.8 264.1 3.8 60.9 82 313 12 57 51 12 59 20 J1022+1001 14 14 20 32.7 261.6 3.8 59.3 -8 313 No stop 13 02 35 --- 14 17 36 32.0 262.0 3.9 59.4 187 325 12 59 21 13 03 20 J1025+1253 14 18 21 33.9 264.7 3.9 61.0 37 325 13 03 20 13 04 50 =1023+131 14 19 51 33.6 264.9 3.9 61.0 90 331 13 03 21 13 04 50 J1022+1001 14 19 51 31.5 262.4 3.9 59.5 -8 331 No stop 13 08 05 --- 14 23 06 30.8 262.8 4.0 59.6 187 344 13 04 51 13 08 05 J1025+1253 14 23 06 32.9 265.3 3.9 61.1 -8 344 No stop 13 09 35 =1023+131 14 24 37 32.6 265.6 4.0 61.1 82 350 13 08 06 13 09 35 J1022+1001 14 24 37 30.5 263.1 4.0 59.7 -8 350 No stop 13 12 50 --- 14 27 52 29.8 263.5 4.1 59.8 187 362 13 09 36 13 13 35 J1025+1253 14 28 37 31.7 266.1 4.0 61.2 37 362 13 13 35 13 15 05 =1023+131 14 30 08 31.4 266.3 4.1 61.2 90 368 13 13 36 13 15 05 J1022+1001 14 30 08 29.3 263.8 4.1 59.8 -8 368 No stop 13 18 20 --- 14 33 23 28.7 264.3 4.2 59.9 187 381 13 15 06 13 18 20 J1025+1253 14 33 23 30.7 266.8 4.1 61.3 -8 381 No stop 13 19 50 =1023+131 14 34 53 30.4 267.0 4.1 61.3 82 386 13 18 21 13 19 50 J1022+1001 14 34 53 28.3 264.5 4.2 59.9 -8 386 No stop 13 23 05 --- 14 38 09 27.6 265.0 4.2 60.0 187 399 13 19 51 13 23 50 J1025+1253 14 38 54 29.5 267.5 4.2 61.3 37 399 13 23 50 13 25 20 =1023+131 14 40 24 29.2 267.7 4.2 61.3 90 405 13 23 51 13 25 20 J1022+1001 14 40 24 27.2 265.3 4.3 60.1 -8 405 No stop 13 28 35 --- 14 43 40 26.5 265.7 4.3 60.1 187 417 13 25 21 13 28 35 J1025+1253 14 43 40 28.5 268.2 4.3 61.4 -8 417 No stop 13 30 05 =1023+131 14 45 10 28.2 268.4 4.3 61.4 82 423 13 28 36 13 30 05 J1022+1001 14 45 10 26.1 265.9 4.4 60.1 -8 423 No stop 13 33 20 --- 14 48 26 25.4 266.4 4.4 60.2 187 436 13 30 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 9 Jun 2011 Day 160 --- 13 34 05 J1025+1253 14 49 11 27.3 268.9 4.4 61.4 37 436 13 34 05 13 35 35 =1023+131 14 50 41 27.0 269.1 4.4 61.4 90 442 13 34 06 13 35 35 J1022+1001 14 50 41 25.0 266.7 4.5 60.2 -8 442 No stop 13 38 50 --- 14 53 56 24.3 267.1 4.5 60.3 187 454 13 35 36 13 38 50 J1025+1253 14 53 56 26.3 269.5 4.5 61.4 -7 454 No stop 13 40 20 =1023+131 14 55 27 26.0 269.7 4.5 61.4 83 460 13 38 51 13 40 20 J1022+1001 14 55 27 23.9 267.3 4.5 60.3 -8 460 No stop 13 43 35 --- 14 58 42 23.2 267.8 4.6 60.3 187 473 13 40 21 13 44 20 J1025+1253 14 59 27 25.1 270.2 4.5 61.4 38 473 13 44 20 13 45 50 =1023+131 15 00 58 24.8 270.4 4.6 61.4 90 478 13 44 21 13 45 50 J1022+1001 15 00 58 22.8 268.1 4.6 60.3 -8 478 No stop 13 49 05 --- 15 04 13 22.1 268.5 4.7 60.4 187 491 13 45 51 13 49 05 J1025+1253 15 04 13 24.1 270.8 4.6 61.4 -7 491 No stop 13 50 35 =1023+131 15 05 43 23.8 271.0 4.7 61.4 83 497 13 49 06 13 50 35 J1022+1001 15 05 43 21.7 268.7 4.7 60.4 -8 497 No stop 13 53 50 --- 15 08 59 21.0 269.1 4.8 60.4 187 509 13 50 36 13 54 35 J1025+1253 15 09 44 22.9 271.5 4.7 61.4 38 509 13 54 35 13 56 05 =1023+131 15 11 14 22.6 271.7 4.7 61.4 90 515 13 54 36 13 56 05 J1022+1001 15 11 14 20.6 269.4 4.8 60.4 -8 515 No stop 13 59 20 --- 15 14 30 19.9 269.8 4.8 60.4 187 528 13 56 06 13 59 20 J1025+1253 15 14 30 21.9 272.1 4.8 61.4 -7 528 No stop 14 00 50 =1023+131 15 16 00 21.6 272.3 4.8 61.3 83 534 13 59 21 14 00 50 J1022+1001 15 16 00 19.5 270.0 4.9 60.4 -8 534 No stop 14 04 05 --- 15 19 16 18.8 270.4 4.9 60.4 187 546 14 00 51 14 04 50 J1025+1253 15 20 01 20.7 272.8 4.9 61.3 37 546 14 04 50 14 06 20 =1023+131 15 21 31 20.4 273.0 4.9 61.3 90 552 14 04 51 14 06 20 J1022+1001 15 21 31 18.4 270.7 5.0 60.4 -8 552 No stop 14 09 35 --- 15 24 47 17.7 271.2 5.0 60.4 187 564 14 06 21 14 09 35 J1025+1253 15 24 47 19.7 273.4 5.0 61.2 -8 564 No stop 14 11 05 =1023+131 15 26 17 19.4 273.6 5.0 61.2 82 570 14 09 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 9 Jun 2011 Day 160 --- 14 11 05 J1022+1001 15 26 17 17.3 271.3 5.0 60.4 -8 570 No stop 14 14 20 --- 15 29 32 16.6 271.8 5.1 60.3 187 583 14 11 06 14 15 05 J1025+1253 15 30 17 18.5 274.1 5.1 61.2 37 583 14 15 05 14 16 35 =1023+131 15 31 48 18.2 274.3 5.1 61.1 90 589 14 15 06 14 16 35 J1022+1001 15 31 48 16.2 272.0 5.1 60.3 -8 589 No stop 14 19 50 --- 15 35 03 15.5 272.5 5.2 60.3 187 601 14 16 36 14 19 50 J1025+1253 15 35 03 17.5 274.7 5.1 61.1 -8 601 No stop 14 21 20 =1023+131 15 36 33 17.2 274.9 5.2 61.1 82 607 14 19 51 14 21 20 J1022+1001 15 36 33 15.1 272.6 5.2 60.3 -8 607 No stop 14 24 35 --- 15 39 49 14.4 273.1 5.3 60.2 187 620 14 21 21 14 25 20 J1025+1253 15 40 34 16.3 275.4 5.2 61.0 37 620 14 25 20 14 26 50 =1023+131 15 42 04 16.0 275.6 5.3 60.9 90 625 14 25 21 14 26 50 J1022+1001 15 42 04 14.0 273.3 5.3 60.2 -8 625 No stop 14 30 05 --- 15 45 20 13.3 273.8 5.4 60.2 187 638 14 26 51 14 30 05 J1025+1253 15 45 20 15.3 276.0 5.3 60.9 -8 638 No stop 14 31 35 =1023+131 15 46 50 15.0 276.1 5.3 60.8 82 644 14 30 06 14 31 35 J1022+1001 15 46 50 12.9 273.9 5.4 60.2 -8 644 No stop 14 34 50 --- 15 50 06 12.3 274.4 5.4 60.1 187 656 14 31 36 14 35 35 J1025+1253 15 50 51 14.1 276.6 5.4 60.7 37 656 14 35 35 14 37 05 =1023+131 15 52 21 13.8 276.8 5.4 60.7 90 662 14 35 36 14 37 05 J1022+1001 15 52 21 11.8 274.6 5.5 60.1 -8 662 No stop 14 40 20 --- 15 55 37 11.1 275.0 5.5 60.0 187 675 14 37 06 14 40 20 J1025+1253 15 55 37 13.1 277.2 5.5 60.6 -8 675 No stop 14 41 50 =1023+131 15 57 07 12.8 277.4 5.5 60.6 82 681 14 40 21 14 41 50 J1022+1001 15 57 07 10.8 275.2 5.6 60.0 -8 681 No stop 14 45 05 --- 16 00 22 10.1 275.6 5.6 59.9 187 693 14 41 51 14 45 50 J1025+1253 16 01 07 12.0 277.9 5.6 60.4 37 693 14 45 50 14 47 20 =1023+131 16 02 38 11.6 278.1 5.6 60.4 90 699 14 45 51 14 47 20 J1022+1001 16 02 38 9.6 275.9 5.7 59.9 -8 699 No stop 14 50 35 --- 16 05 53 8.9 276.3 5.7 59.8 187 712 14 47 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 9 Jun 2011 Day 160 --- 14 50 35 J1025+1253 16 05 53 11.0 278.5 5.7 60.3 -8 712 No stop 14 52 05 =1023+131 16 07 24 10.6 278.7 5.7 60.2 82 717 14 50 36 14 52 05 J1022+1001 16 07 24 8.6 276.5 5.7 59.7 -8 717 No stop 14 55 20 --- 16 10 39 7.9 276.9 5.8 59.7 187 730 14 52 06 14 56 05 J1025+1253 16 11 24 9.8 279.2 5.7 60.1 37 730 14 56 05 14 57 35 =1023+131 16 12 54 9.5 279.4 5.8 60.1 90 736 14 56 06 14 57 35 J1022+1001 16 12 54 7.4 277.2 5.8 59.6 -8 736 No stop 15 00 50 --- 16 16 10 6.7 277.6 5.9 59.5 187 748 14 57 36 15 00 50 J1025+1253 16 16 10 8.8 279.8 5.8 59.9 -8 748 No stop 15 02 20 =1023+131 16 17 40 8.5 279.9 5.9 59.9 82 754 15 00 51 15 02 20 J1022+1001 16 17 40 6.4 277.8 5.9 59.5 -8 754 No stop 15 05 35 --- 16 20 56 5.7 278.2 6.0 59.4 187 767 15 02 21 15 06 20 J1025+1253 16 21 41 7.6 280.4 5.9 59.7 37 767 15 06 20 15 08 20 =1023+131 16 23 41 7.2 280.7 6.0 59.7 120 774 15 06 21 15 13 05 J1310+3220 16 28 27 48.4 285.1 3.3 77.9 211 774 15 13 05 15 20 00 =1308+326 16 35 23 46.9 285.6 3.4 77.4 415 801 15 13 06 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: sess211.L512 Matching groups in /psr/soft/sched9.4/catalogs/freq.dat: sh18cm Huang Xinyong 27Sept05 Setup group: 6 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 34.997293 0.00 10 17 03.79035 * 10 01 52.61483 09 58 18.67428 0.00 From catalog imbedded in main SCHED input file. 2.087 scan and 121.213 baseline hours in setup: sess211.L512 * J0927+3902 09 23 55.319214 * 09 27 03.013935 09 27 46.230531 0.26 0923+392 39 15 23.56647 * 39 02 20.85187 38 59 24.55132 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 15.767 baseline hours in setup: sess211.L512 * J1025+1253 10 23 16.285228 * 10 25 56.285369 10 26 33.589825 0.31 1023+131 13 09 05.49493 * 12 53 49.02205 12 50 14.85199 0.21 From catalog imbedded in main SCHED input file. VLBA Calib Survey - GSFC sols. - created L.Petrov 2008a_astro 1.008 scan and 55.534 baseline hours in setup: sess211.L512 * J1310+3220 13 08 07.560131 * 13 10 28.663850 13 11 02.541723 0.24 1308+326 32 36 40.23883 * 32 20 43.78290 32 17 07.48225 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 7.608 baseline hours in setup: sess211.L512 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 75.6 J0927+3902 56.5 J1025+1253 75.3 J1310+3220 100.7 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