COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Characterizing OCRs in dwarf galaxies Exp. Code: ev026a Schedule Version: 3.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Dany Vohl Address: Anton Pannekoek Institute for Astronomy, University of Amsterdam 1098 XH Amsterdam Amsterdam The Netherlands Phone: +31 6 1887 9982 EMAIL: d.vohl@uva.nl Fax: Phone during observation: +31 6 1887 9982 Observing mode: vlbi Notes: # Please, make sure PHASE CAL is OFF # COVER LETTER: This observation is to observe ILT J075257.15+401026.3 first identified in the LoTSS DR2 data as potential analogue to persistent radio sources associated to some fast radio bursts. With the observation, we wish to constrain its source size, and evalute if the radio emission is due to star formation processes or not. Schedule for JODRELL1 (Code Jb ) Page 2 Characterizing OCRs in dwarf galaxies 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 ---------------------------------------------------------------------------------------- --- Fri 1 Mar 2024 Day 61 --- ---------- test pulsar ---------- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 645.51 645.51 645.51 645.51 581.51 581.51 581.51 581.51 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 16 00 00 B0540+23_D 02 30 34 43.1 109.8 -3.2 -37.9 0 0 16 00 00 16 03 00 --- 02 33 34 43.5 110.6 -3.2 -37.7 180 23 16 00 01 ---------- Fringe-finder ---------- 16 04 40 J0555+3948 02 35 14 53.7 90.8 -3.4 -51.2 5 23 16 04 40 16 08 40 =0552+398 02 39 15 54.3 91.6 -3.3 -51.2 240 54 16 04 41 ---------- Going to ILTJ0752 region ---------- 16 10 40 J0743+3941 02 41 15 38.6 72.8 -5.1 -47.9 -9 54 16 10 40 16 12 10 =0739+398 02 42 46 38.8 73.0 -5.0 -48.0 81 66 16 10 41 16 12 10 ILTJ0752 02 42 46 37.7 71.0 -5.2 -47.7 -24 66 No stop 16 17 10 --- 02 47 46 38.4 71.8 -5.1 -48.0 276 104 16 12 11 16 19 10 ILTJ0752 02 49 47 38.7 72.1 -5.1 -48.1 112 104 16 19 10 16 24 10 --- 02 54 48 39.4 72.9 -5.0 -48.4 300 143 16 19 11 16 24 50 J0743+3941 02 55 28 40.6 75.1 -4.8 -48.7 16 143 16 24 50 16 26 10 =0739+398 02 56 48 40.8 75.4 -4.8 -48.8 80 153 16 24 51 16 26 10 ILTJ0752 02 56 48 39.7 73.3 -5.0 -48.5 -24 153 No stop 16 31 10 --- 03 01 49 40.4 74.1 -4.9 -48.8 276 192 16 26 11 16 31 50 J0743+3941 03 02 29 41.6 76.3 -4.7 -49.0 16 192 16 31 50 16 33 10 =0739+398 03 03 49 41.8 76.6 -4.7 -49.1 80 202 16 31 51 16 36 50 J0743+3941 03 07 30 42.4 77.2 -4.6 -49.3 212 202 16 36 50 16 38 10 =0739+398 03 08 50 42.6 77.4 -4.6 -49.3 80 213 16 36 51 16 38 10 ILTJ0752 03 08 50 41.4 75.3 -4.8 -49.2 -24 213 No stop 16 43 10 --- 03 13 51 42.2 76.1 -4.7 -49.4 276 251 16 38 11 16 43 50 J0743+3941 03 14 31 43.4 78.4 -4.5 -49.6 16 251 16 43 50 16 45 10 =0739+398 03 15 51 43.6 78.6 -4.5 -49.6 80 262 16 43 51 16 45 10 ILTJ0752 03 15 51 42.5 76.4 -4.6 -49.5 -24 262 No stop 16 50 10 --- 03 20 52 43.2 77.3 -4.6 -49.8 276 300 16 45 11 Schedule for JODRELL1 (Code Jb ) Page 3 Characterizing OCRs in dwarf galaxies 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 ---------------------------------------------------------------------------------------- --- Fri 1 Mar 2024 Day 61 --- 16 52 10 ILTJ0752 03 22 52 43.5 77.6 -4.5 -49.9 112 300 16 52 10 16 57 10 --- 03 27 53 44.2 78.5 -4.4 -50.1 300 339 16 52 11 16 57 50 J0743+3941 03 28 33 45.4 80.8 -4.3 -50.1 15 339 16 57 50 16 59 10 =0739+398 03 29 53 45.6 81.0 -4.2 -50.1 80 349 16 57 51 16 59 10 ILTJ0752 03 29 53 44.5 78.8 -4.4 -50.2 -24 349 No stop 17 04 10 --- 03 34 54 45.2 79.7 -4.3 -50.4 276 388 16 59 11 17 04 50 J0743+3941 03 35 34 46.5 82.1 -4.2 -50.3 15 388 17 04 50 17 06 10 =0739+398 03 36 54 46.7 82.3 -4.1 -50.4 80 398 17 04 51 17 09 50 J0743+3941 03 40 35 47.2 83.0 -4.1 -50.5 212 398 17 09 50 17 11 10 =0739+398 03 41 55 47.4 83.2 -4.0 -50.5 80 408 17 09 51 17 11 10 ILTJ0752 03 41 55 46.3 80.9 -4.2 -50.6 -25 408 No stop 17 16 10 --- 03 46 56 47.0 81.8 -4.1 -50.8 275 447 17 11 11 17 16 50 J0743+3941 03 47 36 48.3 84.2 -4.0 -50.6 15 447 17 16 50 17 18 10 =0739+398 03 48 56 48.5 84.5 -3.9 -50.7 80 457 17 16 51 ---------- Fringe-finder ---------- 17 19 50 J0555+3948 03 50 37 64.7 109.2 -2.1 -47.4 -34 457 17 19 50 17 23 50 =0552+398 03 54 37 65.3 110.5 -2.0 -46.9 206 488 17 19 51 ---------- Going to ILTJ0752 region ---------- 17 25 50 J0743+3941 03 56 38 49.6 85.9 -3.8 -50.8 -9 488 17 25 50 17 27 20 =0739+398 03 58 08 49.8 86.2 -3.8 -50.8 81 500 17 25 51 17 27 20 ILTJ0752 03 58 08 48.7 83.8 -3.9 -51.1 -25 500 No stop 17 32 20 --- 04 03 09 49.4 84.7 -3.9 -51.2 275 538 17 27 21 17 34 20 ILTJ0752 04 05 09 49.7 85.1 -3.8 -51.2 112 538 17 34 20 17 39 20 --- 04 10 10 50.5 86.0 -3.7 -51.3 300 577 17 34 21 17 40 00 J0743+3941 04 10 50 51.7 88.6 -3.6 -51.0 14 577 17 40 00 17 41 20 =0739+398 04 12 10 51.9 88.9 -3.5 -51.0 80 587 17 40 01 17 41 20 ILTJ0752 04 12 10 50.8 86.4 -3.7 -51.4 -25 587 No stop 17 46 20 --- 04 17 11 51.5 87.4 -3.6 -51.4 275 626 17 41 21 17 47 00 J0743+3941 04 17 51 52.8 90.0 -3.4 -51.0 14 626 17 47 00 17 48 20 =0739+398 04 19 11 53.0 90.3 -3.4 -51.0 80 636 17 47 01 Schedule for JODRELL1 (Code Jb ) Page 4 Characterizing OCRs in dwarf galaxies 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 ---------------------------------------------------------------------------------------- --- Fri 1 Mar 2024 Day 61 --- 17 52 00 J0743+3941 04 22 52 53.5 91.0 -3.4 -51.0 212 636 17 52 00 17 53 20 =0739+398 04 24 12 53.7 91.3 -3.3 -51.0 80 647 17 52 01 17 53 20 ILTJ0752 04 24 12 52.6 88.7 -3.5 -51.5 -26 647 No stop 17 58 20 --- 04 29 13 53.3 89.7 -3.4 -51.5 274 685 17 53 21 17 59 00 J0743+3941 04 29 53 54.6 92.5 -3.2 -50.9 14 685 17 59 00 18 00 20 =0739+398 04 31 13 54.8 92.8 -3.2 -50.9 80 696 17 59 01 18 00 20 ILTJ0752 04 31 13 53.6 90.1 -3.4 -51.5 -26 696 No stop 18 05 20 --- 04 36 14 54.4 91.1 -3.3 -51.5 274 734 18 00 21 18 07 20 ILTJ0752 04 38 15 54.7 91.5 -3.3 -51.5 112 734 18 07 20 18 12 20 --- 04 43 15 55.4 92.6 -3.2 -51.4 300 773 18 07 21 18 13 00 J0743+3941 04 43 55 56.7 95.5 -3.0 -50.7 13 773 18 13 00 18 14 20 =0739+398 04 45 16 56.9 95.8 -3.0 -50.6 80 783 18 13 01 18 14 20 ILTJ0752 04 45 16 55.7 93.0 -3.2 -51.4 -27 783 No stop 18 19 20 --- 04 50 16 56.5 94.1 -3.1 -51.3 273 822 18 14 21 18 20 00 J0743+3941 04 50 57 57.7 97.1 -2.9 -50.5 13 822 18 20 00 18 21 20 =0739+398 04 52 17 57.9 97.4 -2.9 -50.4 80 832 18 20 01 18 25 00 J0743+3941 04 55 57 58.5 98.3 -2.8 -50.3 211 832 18 25 00 18 26 20 =0739+398 04 57 18 58.7 98.6 -2.8 -50.2 80 842 18 25 01 18 26 20 ILTJ0752 04 57 18 57.5 95.6 -3.0 -51.2 -27 842 No stop 18 31 20 --- 05 02 18 58.3 96.8 -2.9 -51.0 273 881 18 26 21 18 32 00 J0743+3941 05 02 59 59.5 99.9 -2.7 -50.0 12 881 18 32 00 18 33 20 =0739+398 05 04 19 59.7 100.3 -2.7 -49.9 80 891 18 32 01 18 33 20 ILTJ0752 05 04 19 58.6 97.2 -2.8 -50.9 -27 891 No stop 18 38 20 --- 05 09 20 59.3 98.4 -2.8 -50.7 273 930 18 33 21 18 40 20 ILTJ0752 05 11 20 59.6 98.9 -2.7 -50.6 112 930 18 40 20 18 45 20 --- 05 16 21 60.3 100.1 -2.6 -50.4 300 969 18 40 21 18 46 00 J0743+3941 05 17 01 61.6 103.5 -2.5 -49.1 11 969 18 46 00 18 47 20 =0739+398 05 18 21 61.8 103.9 -2.4 -49.0 80 979 18 46 01 18 47 20 ILTJ0752 05 18 21 60.6 100.6 -2.6 -50.3 -28 979 No stop 18 52 20 --- 05 23 22 61.4 101.9 -2.5 -50.0 272 1018 18 47 21 Schedule for JODRELL1 (Code Jb ) Page 5 Characterizing OCRs in dwarf galaxies 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 ---------------------------------------------------------------------------------------- --- Fri 1 Mar 2024 Day 61 --- 18 53 00 J0743+3941 05 24 02 62.6 105.4 -2.3 -48.5 10 1018 18 53 00 18 54 20 =0739+398 05 25 22 62.8 105.8 -2.3 -48.4 80 1028 18 53 01 18 58 00 J0743+3941 05 29 03 63.3 106.8 -2.3 -48.1 211 1028 18 58 00 18 59 20 =0739+398 05 30 23 63.5 107.2 -2.2 -47.9 80 1038 18 58 01 18 59 20 ILTJ0752 05 30 23 62.4 103.7 -2.4 -49.5 -29 1038 No stop 19 04 20 --- 05 35 24 63.1 105.1 -2.3 -49.1 271 1077 18 59 21 19 05 00 J0743+3941 05 36 04 64.3 108.9 -2.1 -47.3 9 1077 19 05 00 19 06 20 =0739+398 05 37 24 64.5 109.3 -2.1 -47.2 80 1087 19 05 01 19 06 20 ILTJ0752 05 37 24 63.4 105.6 -2.3 -48.9 -30 1087 No stop 19 11 20 --- 05 42 25 64.1 107.1 -2.2 -48.4 270 1126 19 06 21 19 13 20 ILTJ0752 05 44 25 64.4 107.6 -2.2 -48.2 111 1126 19 13 20 19 18 20 --- 05 49 26 65.1 109.1 -2.1 -47.7 300 1165 19 13 21 19 19 00 J0743+3941 05 50 06 66.3 113.3 -1.9 -45.5 8 1165 19 19 00 19 20 20 =0739+398 05 51 27 66.4 113.8 -1.9 -45.3 80 1175 19 19 01 19 20 20 ILTJ0752 05 51 27 65.4 109.8 -2.1 -47.4 -31 1175 No stop 19 25 20 --- 05 56 27 66.1 111.4 -2.0 -46.8 269 1213 19 20 21 19 26 00 J0743+3941 05 57 07 67.2 115.8 -1.8 -44.4 7 1213 19 26 00 19 27 20 =0739+398 05 58 28 67.4 116.2 -1.8 -44.2 80 1224 19 26 01 19 31 00 J0743+3941 06 02 08 67.9 117.6 -1.7 -43.5 210 1224 19 31 00 19 32 20 =0739+398 06 03 28 68.1 118.1 -1.7 -43.3 80 1234 19 31 01 19 32 20 ILTJ0752 06 03 28 67.1 113.7 -1.9 -45.8 -33 1234 No stop 19 37 20 --- 06 08 29 67.8 115.4 -1.8 -45.0 267 1273 19 32 21 19 38 00 J0743+3941 06 09 09 68.8 120.3 -1.6 -42.2 5 1273 19 38 00 19 39 20 =0739+398 06 10 30 69.0 120.8 -1.6 -41.9 80 1283 19 38 01 19 39 20 ILTJ0752 06 10 30 68.0 116.2 -1.7 -44.6 -33 1283 No stop 19 44 20 --- 06 15 30 68.7 118.0 -1.7 -43.7 267 1322 19 39 21 19 46 20 ILTJ0752 06 17 31 69.0 118.8 -1.6 -43.3 111 1322 19 46 20 19 51 20 --- 06 22 32 69.6 120.8 -1.5 -42.2 300 1360 19 46 21 19 52 00 J0743+3941 06 23 12 70.6 126.2 -1.4 -38.8 3 1360 19 52 00 19 53 20 =0739+398 06 24 32 70.7 126.8 -1.3 -38.5 80 1371 19 52 01 Schedule for JODRELL1 (Code Jb ) Page 6 Characterizing OCRs in dwarf galaxies 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 ---------------------------------------------------------------------------------------- --- Fri 1 Mar 2024 Day 61 --- 19 53 20 ILTJ0752 06 24 32 69.9 121.6 -1.5 -41.8 -35 1371 No stop 19 58 20 --- 06 29 33 70.5 123.7 -1.4 -40.6 265 1409 19 53 21 19 59 00 J0743+3941 06 30 13 71.4 129.5 -1.2 -36.9 2 1409 19 59 00 20 00 20 =0739+398 06 31 33 71.6 130.1 -1.2 -36.5 80 1420 19 59 01 20 04 00 J0743+3941 06 35 14 72.0 131.9 -1.2 -35.3 209 1420 20 04 00 20 05 20 =0739+398 06 36 34 72.1 132.6 -1.1 -34.9 80 1430 20 04 01 20 05 20 ILTJ0752 06 36 34 71.4 126.9 -1.3 -38.7 -37 1430 No stop 20 10 20 --- 06 41 35 72.0 129.3 -1.2 -37.3 263 1469 20 05 21 20 11 00 J0743+3941 06 42 15 72.7 135.6 -1.0 -32.9 -1 1469 20 11 00 20 12 20 =0739+398 06 43 35 72.9 136.4 -1.0 -32.4 79 1479 20 11 01 20 12 20 ILTJ0752 06 43 35 72.2 130.3 -1.2 -36.6 -39 1479 No stop 20 17 20 --- 06 48 36 72.8 132.9 -1.1 -35.0 261 1517 20 12 21 20 19 20 ILTJ0752 06 50 36 73.0 134.0 -1.1 -34.3 110 1517 20 19 20 20 24 20 --- 06 55 37 73.5 136.7 -1.0 -32.4 300 1556 20 19 21 20 25 00 J0743+3941 06 56 17 74.1 143.8 -0.8 -27.3 -4 1556 20 25 00 20 26 20 =0739+398 06 57 37 74.2 144.7 -0.8 -26.7 76 1566 20 25 01 20 26 20 ILTJ0752 06 57 37 73.7 137.9 -0.9 -31.7 -41 1566 No stop 20 31 20 --- 07 02 38 74.2 140.9 -0.9 -29.6 259 1605 20 26 21 20 32 00 J0743+3941 07 03 18 74.7 148.3 -0.7 -24.1 -5 1605 20 32 00 20 33 20 =0739+398 07 04 39 74.8 149.2 -0.7 -23.4 75 1615 20 32 01 20 37 00 J0743+3941 07 08 19 75.0 151.8 -0.6 -21.6 208 1615 20 37 00 20 38 20 =0739+398 07 09 39 75.1 152.7 -0.6 -20.9 80 1626 20 37 01 20 38 20 ILTJ0752 07 09 39 74.8 145.3 -0.7 -26.5 -43 1626 No stop 20 43 20 --- 07 14 40 75.2 148.7 -0.7 -24.0 257 1664 20 38 21 20 44 00 J0743+3941 07 15 20 75.5 156.8 -0.5 -17.9 -8 1664 20 44 00 20 45 20 =0739+398 07 16 40 75.6 157.7 -0.5 -17.1 72 1675 20 44 01 20 45 20 ILTJ0752 07 16 40 75.4 150.0 -0.6 -23.0 -44 1675 No stop 20 49 20 --- 07 20 41 75.7 152.9 -0.6 -20.9 196 1706 20 45 21 20 50 00 J0743+3941 07 21 21 75.8 161.3 -0.4 -14.5 -9 1706 20 50 00 20 51 00 =0739+398 07 22 21 75.9 162.0 -0.4 -13.9 51 1713 20 50 01 Schedule for JODRELL1 (Code Jb ) Page 7 Characterizing OCRs in dwarf galaxies 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 ---------------------------------------------------------------------------------------- --- Fri 1 Mar 2024 Day 61 --- ---------- eMERLIN amplitude calibrator ---------- 20 56 00 3C286 07 27 22 23.2 69.8 -6.1 -40.6 -105 1713 20 56 00 21 00 00 --- 07 31 23 23.8 70.5 -6.0 -40.8 135 1744 20 56 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess124.L1024 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 3 Station: JODRELL1 Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 2272.00 2272.00 2272.00 2272.00 2272.00 2272.00 2272.00 2272.00 Net SB= L L U U L L U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= U U L L U U L L IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 1 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 BBC fr= 645.51 645.51 645.51 645.51 581.51 581.51 581.51 581.51 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 1 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * ILTJ0752 07 49 33.412353 * 07 52 57.153200 07 54 36.548346 0.00 40 18 13.89419 * 40 10 26.38587 40 06 46.70064 0.00 From catalog imbedded in main SCHED input file. * B0540+23_D 05 40 06.938912 * 05 43 09.600000 05 44 37.961073 0.00 23 27 44.80457 * 23 29 05.00000 23 29 48.17973 0.00 From catalog imbedded in main SCHED input file. 0552+398 05 52 01.407168 * 05 55 30.805611 05 57 12.208822 0.00 * J0555+3948 39 48 21.94581 * 39 48 49.16496 39 49 11.53323 0.00 DA193 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0555+39 GSFC 2016a X/S astro solution, 415688 observations. 0739+398 07 39 45.940018 * 07 43 09.886529 07 44 49.321045 0.14 * J0743+3941 39 48 40.02304 * 39 41 30.78073 39 38 09.86367 0.16 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 151 observations. 0751+393 07 51 15.248476 * 07 54 37.069183 07 56 15.529668 1.86 * J0754+3910 39 18 41.79503 * 39 10 47.79774 39 07 04.69953 2.17 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 15 observations. * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 16.347471 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 22 51.59404 0.16 1328+307 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1331+30 GSFC 2016a X/S astro solution, 269 observations. SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline ILTJ0752 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 2.733 285.041 B0540+23_D sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 0.050 6.000 J0555+3948 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 0.133 15.800 J0743+3941 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 0.956 105.302 J0754+3910 sess124.L1024 2 3 4 5 6 7 8 9 10 11 12 0.400 33.754 3C286 sess124.L1024 1 2 3 4 5 6 7 8 9 11 12 0.067 6.496 EFFECT OF SOLAR CORONA 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) ILTJ0752 128.5 B0540+23_D 104.8 J0555+3948 107.0 J0743+3941 127.0 J0754+3910 129.2 3C286 136.0 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