COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: EVN observations of a new sample of faint blazars Exp. Code: EM097a Schedule Version: 1.00 Processed by SCHED version: 10.20 Release of about July 12, 2012 PI: Franco Mantovani Address: Istituto di Radioastronomia Via P. Gobetti, 101 I-40129 Bologna Italy Phone: +39 51 6399377 EMAIL: fmantovani@ira.inaf.it Fax: +39 51 6399431 Phone during observation: Observing mode: Continuum Notes: Schedule for SHANGHAI (Code Sh ) Page 2 EVN observations of a new sample of faint blazars 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 ---------------------------------------------------------------------------------------- --- Sun 24 Feb 2013 Day 55 --- Next scan frequencies: 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 4998.49 4998.49 4998.49 4998.49 5014.49 5014.49 5014.49 5014.49 Next BBC frequencies: 766.49 766.49 766.49 766.49 782.49 782.49 782.49 782.49 798.49 798.49 798.49 798.49 814.49 814.49 814.49 814.49 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 12 30 00 J0319+4130 06 52 59 46.7 -60.7 3.5 86.2 0 0 12 30 00 12 45 00 =0316+413 07 08 01 43.9 -60.3 3.8 84.0 900 58 12 30 01 12 48 00 J0449+1121 07 11 02 51.9 246.7 2.4 53.3 -132 58 12 48 00 12 51 00 =0446+112 07 14 02 51.3 247.4 2.4 53.7 48 70 12 48 01 12 51 41 J0421.5+1433 07 14 43 47.3 257.3 2.9 59.7 27 70 12 51 41 12 57 41 --- 07 20 44 46.1 258.4 3.0 60.1 360 93 12 51 42 12 58 28 J0502.5+1338 07 21 32 53.8 249.0 2.3 55.4 30 93 12 58 28 13 04 28 --- 07 27 33 52.6 250.4 2.4 56.1 360 116 12 58 29 13 05 01 J0510.0+1800 07 28 05 56.3 255.3 2.3 60.6 22 116 13 05 01 13 11 01 --- 07 34 06 55.1 256.5 2.4 61.1 360 139 13 05 02 13 11 53 J0518.2+0624 07 34 59 49.7 239.3 2.3 47.8 31 139 13 11 53 13 17 53 --- 07 41 00 48.6 240.8 2.4 48.8 360 163 13 11 54 13 18 21 J0513.8+0156 07 41 28 44.7 237.2 2.4 46.1 17 163 13 18 21 13 24 21 --- 07 47 29 43.6 238.7 2.5 47.1 360 186 13 18 22 13 30 21 J1026.4+6746 07 53 30 47.1 380.3 -2.6 -128.5 214 186 13 30 21 13 36 21 --- 07 59 31 47.5 379.8 -2.5 -130.3 360 209 13 30 22 13 37 20 J0931.9+5533 08 00 30 60.7 387.0 -1.5 -136.7 33 209 13 37 20 13 43 20 --- 08 06 31 61.2 385.7 -1.4 -139.1 360 232 13 37 21 13 45 12 J0651.9+6955 08 08 23 49.8 350.2 1.2 154.8 72 232 13 45 12 13 51 12 --- 08 14 24 49.6 349.4 1.3 152.8 360 255 13 45 13 13 51 34 J0646.8+6807 08 14 46 50.9 347.4 1.4 149.9 16 255 13 51 34 13 57 34 --- 08 20 47 50.6 346.6 1.5 148.0 360 279 13 51 35 13 58 34 J0638+5933 08 21 48 56.8 336.4 1.7 137.5 45 279 13 58 34 14 01 34 =0633+595 08 24 48 56.5 335.9 1.8 136.4 180 290 13 58 35 14 05 34 J1026.4+6746 08 28 49 49.5 376.8 -2.0 -139.3 195 290 14 05 34 14 11 34 --- 08 34 50 49.8 376.1 -1.9 -141.2 360 314 14 05 35 Schedule for SHANGHAI (Code Sh ) Page 3 EVN observations of a new sample of faint blazars 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 ---------------------------------------------------------------------------------------- --- Sun 24 Feb 2013 Day 55 --- 14 12 34 J0931.9+5533 08 35 49 63.6 378.3 -1.0 -151.6 33 314 14 12 34 14 18 34 --- 08 41 50 64.0 376.6 -0.9 -154.4 360 337 14 12 35 14 20 26 J0651.9+6955 08 43 43 48.2 346.2 1.8 143.5 78 337 14 20 26 14 26 26 --- 08 49 44 47.9 345.6 1.9 141.6 360 360 14 20 27 14 26 50 J0646.8+6807 08 50 08 49.0 343.3 2.0 138.6 17 360 14 26 50 14 32 50 --- 08 56 09 48.6 342.6 2.1 136.7 360 383 14 26 51 14 38 50 J0535.1-0239 09 02 10 30.5 245.3 3.4 51.1 258 383 14 38 50 14 44 50 --- 09 08 10 29.3 246.4 3.5 51.7 360 406 14 38 51 14 45 43 J0447.9-0322 09 09 04 19.2 253.6 4.3 55.4 32 406 14 45 43 14 51 43 --- 09 15 05 18.0 254.5 4.4 55.7 360 430 14 45 44 14 52 19 J0435.1-0811 09 15 41 12.5 252.3 4.7 55.5 24 430 14 52 19 14 58 19 --- 09 21 42 11.3 253.2 4.8 55.9 360 453 14 52 20 14 58 41 J0427.2-0756 09 22 05 9.7 254.5 4.9 56.4 16 453 14 58 41 15 04 41 --- 09 28 06 8.5 255.4 5.0 56.8 360 476 14 58 42 15 06 00 J0449+1121 09 29 24 23.0 269.7 4.7 60.9 50 476 15 06 00 15 09 00 =0446+112 09 32 25 22.3 270.1 4.7 60.9 180 488 15 06 01 15 09 41 J0421.5+1433 09 33 06 17.9 276.6 5.2 61.5 30 488 15 09 41 15 15 41 --- 09 39 07 16.6 277.3 5.3 61.4 360 511 15 09 42 15 16 28 J0502.5+1338 09 39 54 24.7 271.5 4.6 61.7 29 511 15 16 28 15 22 28 --- 09 45 55 23.4 272.2 4.7 61.7 360 534 15 16 29 15 23 03 J0510.0+1800 09 46 30 26.9 275.7 4.6 63.6 24 534 15 23 03 15 29 03 --- 09 52 31 25.6 276.4 4.7 63.5 360 557 15 23 04 15 30 00 J0518.2+0624 09 53 28 21.6 264.4 4.6 59.0 41 557 15 30 00 15 36 00 --- 09 59 29 20.3 265.2 4.7 59.2 360 581 15 30 01 15 36 35 J0513.8+0156 10 00 05 16.9 261.9 4.8 58.0 26 581 15 36 35 15 42 35 --- 10 06 06 15.6 262.7 4.9 58.2 360 604 15 36 36 15 48 35 J0535.1-0239 10 12 07 16.4 256.5 4.6 56.5 349 604 15 48 35 15 54 35 --- 10 18 08 15.1 257.4 4.7 56.8 360 627 15 48 36 16 22 57 J0502.5+1338 10 46 34 10.5 279.7 5.7 60.3 1679 627 16 22 57 16 28 57 --- 10 52 35 9.3 280.4 5.8 60.1 360 650 16 22 58 Schedule for SHANGHAI (Code Sh ) Page 4 EVN observations of a new sample of faint blazars 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 ---------------------------------------------------------------------------------------- --- Sun 24 Feb 2013 Day 55 --- 16 29 32 J0510.0+1800 10 53 11 12.9 283.5 5.7 61.1 25 650 16 29 32 16 35 32 --- 10 59 12 11.6 284.2 5.8 60.8 360 674 16 29 33 16 36 30 J0518.2+0624 11 00 09 7.3 273.1 5.7 59.4 43 674 16 36 30 16 42 30 --- 11 06 10 6.0 273.9 5.8 59.3 360 697 16 36 31 17 03 06 J1026.4+6746 11 26 50 52.4 350.9 1.0 159.0 1152 697 17 03 06 17 09 06 --- 11 32 51 52.2 350.0 1.1 156.9 360 720 17 03 07 17 10 06 J0931.9+5533 11 33 50 57.6 327.8 2.0 126.3 33 720 17 10 06 17 16 06 --- 11 39 51 57.0 326.9 2.1 124.3 360 743 17 10 07 17 18 33 J0651.9+6955 11 42 19 35.1 336.4 4.8 94.8 107 743 17 18 33 17 24 33 --- 11 48 20 34.6 336.4 4.9 93.3 360 766 17 18 34 17 24 55 J0646.8+6807 11 48 42 34.1 334.2 5.0 90.8 16 766 17 24 55 17 30 55 --- 11 54 43 33.6 334.2 5.1 89.4 360 790 17 24 56 17 31 59 J0638+5933 11 55 48 31.8 324.1 5.3 81.7 50 790 17 31 59 17 34 59 =0633+595 11 58 48 31.4 324.2 5.3 81.1 180 801 17 32 00 17 40 59 J1026.4+6746 12 04 49 50.7 345.7 1.6 146.2 323 801 17 40 59 17 46 59 --- 12 10 50 50.4 345.0 1.7 144.2 360 824 17 41 00 17 48 17 J0931.9+5533 12 12 08 53.0 323.0 2.7 114.5 52 824 17 48 17 17 54 17 --- 12 18 09 52.2 322.4 2.8 112.8 360 848 17 48 18 17 56 44 J0651.9+6955 12 20 37 31.8 336.4 5.5 85.8 109 848 17 56 44 18 02 44 --- 12 26 38 31.3 336.5 5.6 84.4 360 871 17 56 45 18 03 05 J0646.8+6807 12 26 59 30.6 334.5 5.6 82.0 15 871 18 03 05 18 09 05 --- 12 33 00 30.0 334.6 5.7 80.7 360 894 18 03 06 18 19 05 J0724.3-0715 12 43 01 5.1 258.3 5.3 57.7 519 894 18 19 05 18 25 05 --- 12 49 02 3.8 259.1 5.4 D 58.0 0 917 18 19 06 18 26 01 J0816.0-0736 12 49 58 14.2 251.8 4.6 55.1 36 917 18 26 01 18 32 01 --- 12 55 59 13.0 252.6 4.7 55.5 360 941 18 26 02 18 33 10 J0927.7-0900 12 57 09 25.9 240.1 3.5 48.8 43 941 18 33 10 18 39 10 --- 13 03 10 24.8 241.2 3.6 49.5 360 964 18 33 11 19 36 54 J0927.7-0900 14 01 03 13.5 250.5 4.5 54.8 3461 964 19 36 54 19 42 54 --- 14 07 04 12.3 251.4 4.6 55.2 360 987 19 36 55 Schedule for SHANGHAI (Code Sh ) Page 5 EVN observations of a new sample of faint blazars 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 ---------------------------------------------------------------------------------------- --- Sun 24 Feb 2013 Day 55 --- 23 23 47 J1026.4+6746 17 48 34 21.4 337.5 7.3 59.7 13165 987 23 23 47 23 29 47 --- 17 54 35 20.9 337.8 7.5 58.4 360 1010 23 23 48 23 31 57 J0931.9+5533 17 56 45 8.1 332.4 8.4 44.4 105 1010 23 31 57 23 37 57 --- 18 02 46 7.5 333.0 8.5 43.3 360 1033 23 31 58 23 40 24 J0651.9+6955 18 05 13 11.4 355.8 11.2 10.5 121 1033 23 40 24 23 46 24 --- 18 11 14 11.3 356.3 11.3 9.2 360 1057 23 40 25 23 46 45 J0646.8+6807 18 11 35 9.4 356.6 11.4 7.9 13 1057 23 46 45 23 52 45 --- 18 17 36 9.4 357.1 11.5 6.6 360 1080 23 46 46 --- Mon 25 Feb 2013 Day 56 --- 00 00 06 J1026.4+6746 18 24 58 18.6 339.6 8.0 51.9 419 1080 00 00 06 00 06 06 --- 18 30 59 18.1 340.0 8.1 50.7 360 1103 00 00 07 00 16 19 J0651.9+6955 18 41 14 11.0 358.9 11.8 2.7 592 1103 00 16 19 00 22 19 --- 18 47 15 11.0 359.5 11.9 1.3 360 1126 00 16 20 00 22 39 J0646.8+6807 18 47 35 9.2 359.9 12.0 0.1 12 1126 00 22 39 00 28 39 --- 18 53 36 9.2 360.5-11.9 -1.2 360 1150 00 22 40 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess113.C512 Matching groups in /home/marco/sched_10.2/catalogs/freq.dat: sh6cm Update freq. range AnTao 22Mar08 Setup group: 12 Station: SHANGHAI Total bit rate: 512 Format: MARK5B 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= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 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= L L U U L L U U L L U U L L U U IF = C A C A C A C A C A C A C A C A The following frequency sets based on these setups were used. Frequency Set: 14 Setup file default. Used pcal sets: 1 LO sum= 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 4998.49 4998.49 4998.49 4998.49 5014.49 5014.49 5014.49 5014.49 BBC fr= 766.49 766.49 766.49 766.49 782.49 782.49 782.49 782.49 798.49 798.49 798.49 798.49 814.49 814.49 814.49 814.49 Bandwd= 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 Matching frequency sets: 14 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, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 barrel=roll_off SOURCES USED IN RECORDING SCANS -- EVN observations of a new sample of faint blazars 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) * J0421.5+1433 04 18 43.690142 * 04 21 33.110000 04 22 18.792377 0.00 14 27 00.05677 * 14 34 03.00000 14 35 47.52398 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 34.235 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0427.2-0756 04 24 49.069927 * 04 27 14.210000 04 27 53.312681 0.00 -08 03 04.37716 *-07 56 24.83000 -07 54 54.09460 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 30.155 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0435.1-0811 04 32 43.633428 * 04 35 08.384000 04 35 47.426809 0.00 -08 17 10.78020 *-08 11 03.17000 -08 09 41.18005 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 30.146 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0447.9-0322 04 45 24.800110 * 04 47 54.753000 04 48 35.278300 0.00 -03 27 58.46152 *-03 22 43.19000 -03 21 33.91752 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 30.006 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0502.5+1338 04 59 43.844691 * 05 02 33.223000 05 03 19.096812 0.00 13 33 56.76239 * 13 38 11.30000 13 39 09.65605 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 36.050 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0510.0+1800 05 07 07.503321 * 05 10 02.386000 05 10 49.793488 0.00 17 56 58.89574 * 18 00 41.83000 18 01 33.06172 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 36.222 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0513.8+0156 05 11 16.007420 * 05 13 51.944000 05 14 34.227409 0.00 01 53 30.16159 * 01 56 56.12000 01 57 37.47056 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 31.662 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0518.2+0624 05 15 34.903975 * 05 18 15.987000 05 18 59.685925 0.00 06 21 15.24620 * 06 24 22.51000 06 25 00.22211 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 33.679 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0535.1-0239 05 32 41.622211 * 05 35 12.273000 05 35 53.238929 0.00 -02 41 00.72101 *-02 39 07.02000 -02 38 51.98316 0.00 From catalog imbedded in main SCHED input file. 0.500 scan and 34.620 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0646.8+6807 06 41 24.207543 * 06 46 41.500000 06 48 08.586093 0.00 68 10 54.36440 * 68 07 42.95000 68 06 53.55080 0.00 From catalog imbedded in main SCHED input file. 0.600 scan and 42.833 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 13 14 * J0651.9+6955 06 46 21.954802 * 06 51 54.557000 06 53 25.910981 0.00 69 58 59.51734 * 69 55 26.31000 69 54 31.03388 0.00 From catalog imbedded in main SCHED input file. 0.600 scan and 43.437 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 13 14 * J0724.3-0715 07 21 51.480645 * 07 24 17.325000 07 24 57.507322 0.00 -07 09 24.38665 *-07 15 19.71000 -07 17 11.02651 0.00 From catalog imbedded in main SCHED input file. 0.600 scan and 32.271 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 * J0816.0-0736 08 13 42.098096 * 08 16 08.485000 08 16 48.991374 0.00 -07 27 55.83361 *-07 37 12.29000 -07 39 56.53979 0.00 From catalog imbedded in main SCHED input file. 0.600 scan and 38.525 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0927.7-0900 09 25 19.677026 * 09 27 46.934000 09 28 27.840505 0.00 -08 47 16.45068 *-09 00 22.24000 -09 04 05.93270 0.00 From catalog imbedded in main SCHED input file. 0.600 scan and 40.136 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0931.9+5533 09 28 24.882098 * 09 31 58.093000 09 32 56.953181 0.00 55 46 28.43341 * 55 33 13.08000 55 29 32.93160 0.00 From catalog imbedded in main SCHED input file. 0.600 scan and 40.558 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 13 14 * J1026.4+6746 10 22 52.943152 * 10 26 33.115000 10 27 34.347092 0.00 68 01 29.01655 * 67 46 12.52000 67 41 58.90858 0.00 From catalog imbedded in main SCHED input file. 0.600 scan and 40.142 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 13 14 * J0319+4130 03 16 29.567260 * 03 19 48.160090 03 20 41.512374 1.30 0316+413 41 19 51.91699 * 41 30 42.10412 41 33 37.79825 2.72 3C84 /home/marco/sched_10.2/catalogs/sources.vlba J0319+41 GSFC 2011A astro solution 9957 Observations 0.250 scan and 22.750 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0449+1121 04 46 21.217284 * 04 49 07.671104 04 49 52.683306 0.10 0446+112 11 16 17.84557 * 11 21 28.59636 11 22 41.46784 0.10 J0449+11 /home/marco/sched_10.2/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 7372 observations 0.200 scan and 14.534 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 12 13 14 * J0638+5933 06 33 36.766652 * 06 38 02.871902 06 39 15.737149 0.72 0633+595 59 35 58.24772 * 59 33 22.21386 59 32 41.28514 0.44 /home/marco/sched_10.2/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 124 observations 0.150 scan and 9.664 baseline hours in setup: sess113.C512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 13 14 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) J0421.5+1433 89.9 J0427.2-0756 87.7 J0435.1-0811 89.5 J0447.9-0322 93.5 J0502.5+1338 99.6 J0510.0+1800 101.9 J0513.8+0156 100.7 J0518.2+0624 102.5 J0535.1-0239 105.2 J0646.8+6807 110.7 J0651.9+6955 110.2 J0724.3-0715 130.5 J0816.0-0736 142.3 J0927.7-0900 155.8 J0931.9+5533 132.2 J1026.4+6746 121.5 J0319+4130 83.0 J0449+1121 96.1 J0638+5933 113.6 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