COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Characterizing OCRs in dwarf galaxies Exp. Code: ev026b Schedule Version: 2.00 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 J015915.79+242500.6 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 ---------------------------------------------------------------------------------------- --- Mon 4 Mar 2024 Day 64 --- ---------- Test pulsar 1 ---------- 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 11 00 00 B0329+54_D 21 41 34 41.6 50.6 -5.9 -53.1 0 0 11 00 00 11 01 30 --- 21 43 04 41.8 50.8 -5.9 -53.3 90 12 11 00 01 ---------- Fringe finder 1/1 ---------- 11 04 20 J0145+2319 21 45 55 36.2 99.0 -4.0 -40.1 -39 12 11 04 20 11 08 20 =0143+230 21 49 55 36.8 99.8 -4.0 -40.0 201 43 11 04 21 11 09 00 J0151+2517 21 50 35 37.6 97.2 -4.0 -41.1 14 43 11 09 00 11 10 20 =0148+250 21 51 56 37.8 97.5 -4.0 -41.1 80 53 11 09 01 11 10 20 ILTJ015915 21 51 56 35.9 96.5 -4.1 -40.8 -25 53 No stop 11 15 20 --- 21 56 57 36.7 97.6 -4.1 -40.7 275 91 11 10 21 11 17 20 ILTJ015915 21 58 57 37.0 98.0 -4.0 -40.7 112 91 11 17 20 11 22 20 --- 22 03 58 37.7 99.1 -3.9 -40.5 300 130 11 17 21 11 23 00 J0151+2517 22 04 38 39.7 100.3 -3.8 -40.7 14 130 11 23 00 11 24 20 =0148+250 22 05 58 39.9 100.6 -3.8 -40.6 80 140 11 23 01 11 24 20 ILTJ015915 22 05 58 38.0 99.5 -3.9 -40.5 -25 140 No stop 11 29 20 --- 22 10 59 38.8 100.6 -3.8 -40.3 275 179 11 24 21 11 30 00 J0151+2517 22 11 39 40.7 101.9 -3.7 -40.4 14 179 11 30 00 11 31 20 =0148+250 22 12 59 40.9 102.2 -3.7 -40.4 80 189 11 30 01 11 35 00 J0151+2517 22 16 40 41.4 103.0 -3.6 -40.2 211 189 11 35 00 11 36 20 =0148+250 22 18 00 41.6 103.3 -3.6 -40.1 80 200 11 35 01 11 36 20 ILTJ015915 22 18 00 39.8 102.2 -3.7 -40.0 -25 200 No stop 11 41 20 --- 22 23 01 40.5 103.4 -3.6 -39.8 275 238 11 36 21 11 42 00 J0151+2517 22 23 41 42.5 104.7 -3.5 -39.9 14 238 11 42 00 11 43 20 =0148+250 22 25 01 42.7 105.0 -3.5 -39.8 80 249 11 42 01 11 43 20 ILTJ015915 22 25 01 40.8 103.8 -3.6 -39.7 -25 249 No stop 11 48 20 --- 22 30 02 41.5 105.0 -3.5 -39.5 275 287 11 43 21 11 50 20 ILTJ015915 22 32 02 41.8 105.5 -3.5 -39.4 112 287 11 50 20 11 55 20 --- 22 37 03 42.5 106.7 -3.4 -39.1 300 326 11 50 21 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 ---------------------------------------------------------------------------------------- --- Mon 4 Mar 2024 Day 64 --- 11 56 00 J0151+2517 22 37 43 44.5 108.0 -3.2 -39.1 14 326 11 56 00 11 57 20 =0148+250 22 39 03 44.7 108.4 -3.2 -39.0 80 336 11 56 01 11 57 20 ILTJ015915 22 39 03 42.8 107.1 -3.4 -39.0 -25 336 No stop 12 02 20 --- 22 44 04 43.5 108.4 -3.3 -38.6 275 375 11 57 21 12 03 00 J0151+2517 22 44 44 45.5 109.8 -3.1 -38.6 14 375 12 03 00 12 04 20 =0148+250 22 46 05 45.7 110.1 -3.1 -38.5 80 385 12 03 01 12 08 00 J0151+2517 22 49 45 46.2 111.1 -3.0 -38.2 211 385 12 08 00 12 09 20 =0148+250 22 51 05 46.4 111.4 -3.0 -38.1 80 395 12 08 01 12 09 20 ILTJ015915 22 51 05 44.5 110.1 -3.2 -38.2 -25 395 No stop 12 14 20 --- 22 56 06 45.2 111.4 -3.1 -37.8 275 434 12 09 21 12 15 00 J0151+2517 22 56 46 47.2 112.9 -2.9 -37.6 14 434 12 15 00 12 16 20 =0148+250 22 58 07 47.3 113.2 -2.9 -37.5 80 444 12 15 01 12 16 20 ILTJ015915 22 58 07 45.5 111.9 -3.0 -37.6 -25 444 No stop 12 21 20 --- 23 03 07 46.2 113.2 -3.0 -37.2 275 483 12 16 21 12 23 20 ILTJ015915 23 05 08 46.5 113.7 -2.9 -37.0 112 483 12 23 20 12 28 20 --- 23 10 08 47.2 115.0 -2.8 -36.6 300 522 12 23 21 12 29 00 J0151+2517 23 10 49 49.1 116.7 -2.7 -36.3 14 522 12 29 00 12 30 20 =0148+250 23 12 09 49.2 117.0 -2.7 -36.2 80 532 12 29 01 12 30 20 ILTJ015915 23 12 09 47.4 115.6 -2.8 -36.4 -25 532 No stop 12 35 20 --- 23 17 10 48.1 117.0 -2.7 -35.9 275 571 12 30 21 12 36 00 J0151+2517 23 17 50 50.0 118.7 -2.6 -35.6 14 571 12 36 00 12 37 20 =0148+250 23 19 10 50.2 119.0 -2.6 -35.4 80 581 12 36 01 12 41 00 J0151+2517 23 22 51 50.6 120.1 -2.5 -35.0 211 581 12 41 00 12 42 20 =0148+250 23 24 11 50.8 120.5 -2.5 -34.8 80 591 12 41 01 12 42 20 ILTJ015915 23 24 11 49.0 118.9 -2.6 -35.2 -25 591 No stop 12 47 20 --- 23 29 12 49.7 120.4 -2.5 -34.6 275 630 12 42 21 12 48 00 J0151+2517 23 29 52 51.5 122.2 -2.4 -34.1 15 630 12 48 00 12 49 20 =0148+250 23 31 12 51.7 122.6 -2.4 -33.9 80 640 12 48 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 ---------------------------------------------------------------------------------------- --- Mon 4 Mar 2024 Day 64 --- ---------- Fringe finder 2/1 ---------- 12 50 00 J0145+2319 23 31 52 50.8 126.1 -2.3 -31.8 11 640 12 50 00 12 54 00 =0143+230 23 35 53 51.3 127.3 -2.2 -31.2 240 671 12 50 01 12 54 40 J0151+2517 23 36 33 52.4 124.2 -2.3 -33.2 12 671 12 54 40 12 56 00 =0148+250 23 37 53 52.5 124.6 -2.2 -33.0 80 681 12 54 41 12 56 00 ILTJ015915 23 37 53 50.8 122.9 -2.4 -33.5 -25 681 No stop 13 01 00 --- 23 42 54 51.4 124.4 -2.3 -32.9 275 720 12 56 01 13 03 00 ILTJ015915 23 44 54 51.7 125.1 -2.3 -32.6 111 720 13 03 00 13 08 00 --- 23 49 55 52.3 126.6 -2.2 -31.9 300 759 13 03 01 13 08 40 J0151+2517 23 50 35 54.1 128.7 -2.0 -31.1 15 759 13 08 40 13 10 00 =0148+250 23 51 55 54.2 129.1 -2.0 -30.9 80 769 13 08 41 13 10 00 ILTJ015915 23 51 55 52.5 127.3 -2.1 -31.6 -24 769 No stop 13 15 00 --- 23 56 56 53.1 128.9 -2.1 -30.8 276 808 13 10 01 13 15 40 J0151+2517 23 57 36 54.9 131.1 -1.9 -30.0 15 808 13 15 40 13 17 00 =0148+250 23 58 56 55.0 131.5 -1.9 -29.8 80 818 13 15 41 13 20 40 J0151+2517 00 02 37 55.4 132.8 -1.8 -29.1 210 818 13 20 40 13 22 00 =0148+250 00 03 57 55.6 133.2 -1.8 -28.9 80 828 13 20 41 13 22 00 ILTJ015915 00 03 57 53.9 131.2 -1.9 -29.7 -24 828 No stop 13 27 00 --- 00 08 58 54.5 132.9 -1.9 -28.8 276 867 13 22 01 13 27 40 J0151+2517 00 09 38 56.2 135.3 -1.7 -27.8 15 867 13 27 40 13 29 00 =0148+250 00 10 58 56.3 135.7 -1.7 -27.5 80 877 13 27 41 13 29 00 ILTJ015915 00 10 58 54.7 133.6 -1.8 -28.5 -24 877 No stop 13 34 00 --- 00 15 59 55.2 135.3 -1.7 -27.5 276 916 13 29 01 13 36 00 ILTJ015915 00 18 00 55.4 136.0 -1.7 -27.2 111 916 13 36 00 13 41 00 --- 00 23 00 55.9 137.9 -1.6 -26.2 300 955 13 36 01 13 41 40 J0151+2517 00 23 41 57.6 140.5 -1.5 -25.0 14 955 13 41 40 13 43 00 =0148+250 00 25 01 57.7 141.0 -1.5 -24.7 80 965 13 41 41 13 43 00 ILTJ015915 00 25 01 56.1 138.6 -1.6 -25.8 -25 965 No stop 13 48 00 --- 00 30 02 56.6 140.4 -1.5 -24.8 275 1004 13 43 01 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 ---------------------------------------------------------------------------------------- --- Mon 4 Mar 2024 Day 64 --- 13 48 40 J0151+2517 00 30 42 58.2 143.2 -1.4 -23.4 14 1004 13 48 40 13 50 00 =0148+250 00 32 02 58.4 143.7 -1.3 -23.1 80 1014 13 48 41 13 53 40 J0151+2517 00 35 43 58.7 145.2 -1.3 -22.2 210 1014 13 53 40 13 55 00 =0148+250 00 37 03 58.8 145.7 -1.3 -21.9 80 1024 13 53 41 13 55 00 ILTJ015915 00 37 03 57.3 143.1 -1.4 -23.3 -25 1024 No stop 14 00 00 --- 00 42 04 57.7 145.1 -1.3 -22.1 275 1063 13 55 01 14 00 40 J0151+2517 00 42 44 59.3 148.0 -1.2 -20.5 13 1063 14 00 40 14 02 00 =0148+250 00 44 04 59.4 148.6 -1.1 -20.2 80 1073 14 00 41 14 02 00 ILTJ015915 00 44 04 57.9 145.9 -1.3 -21.7 -26 1073 No stop 14 07 00 --- 00 49 05 58.3 147.9 -1.2 -20.5 274 1112 14 02 01 14 09 00 ILTJ015915 00 51 05 58.5 148.7 -1.2 -20.0 111 1112 14 09 00 14 14 00 --- 00 56 06 58.8 150.8 -1.1 -18.7 300 1150 14 09 01 14 14 40 J0151+2517 00 56 46 60.3 154.0 -0.9 -16.9 12 1150 14 14 40 14 16 00 =0148+250 00 58 06 60.4 154.6 -0.9 -16.5 80 1161 14 14 41 14 16 00 ILTJ015915 00 58 06 59.0 151.6 -1.0 -18.2 -27 1161 No stop 14 21 00 --- 01 03 07 59.3 153.7 -1.0 -16.9 273 1199 14 16 01 14 21 40 J0151+2517 01 03 47 60.7 157.1 -0.8 -14.9 11 1199 14 21 40 14 23 00 =0148+250 01 05 07 60.8 157.7 -0.8 -14.6 80 1210 14 21 41 14 26 40 J0151+2517 01 08 48 61.0 159.4 -0.7 -13.5 210 1210 14 26 40 14 28 00 =0148+250 01 10 08 61.1 160.0 -0.7 -13.1 80 1220 14 26 41 14 28 00 ILTJ015915 01 10 08 59.8 156.8 -0.8 -15.0 -28 1220 No stop 14 33 00 --- 01 15 09 60.0 159.0 -0.8 -13.7 272 1259 14 28 01 14 33 40 J0151+2517 01 15 49 61.3 162.6 -0.6 -11.5 10 1259 14 33 40 14 35 00 =0148+250 01 17 09 61.4 163.2 -0.6 -11.1 80 1269 14 33 41 14 35 00 ILTJ015915 01 17 09 60.2 159.9 -0.7 -13.1 -28 1269 No stop 14 40 00 --- 01 22 10 60.4 162.1 -0.6 -11.7 272 1308 14 35 01 14 42 00 ILTJ015915 01 24 10 60.5 163.0 -0.6 -11.1 110 1308 14 42 00 14 47 00 --- 01 29 11 60.7 165.3 -0.5 -9.6 300 1346 14 42 01 14 47 40 J0151+2517 01 29 51 61.9 169.1 -0.4 -7.2 9 1346 14 47 40 14 49 00 =0148+250 01 31 12 61.9 169.8 -0.4 -6.8 80 1356 14 47 41 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 ---------------------------------------------------------------------------------------- --- Mon 4 Mar 2024 Day 64 --- 14 49 00 ILTJ015915 01 31 12 60.8 166.2 -0.5 -9.0 -29 1356 No stop 14 54 00 --- 01 36 12 60.9 168.5 -0.4 -7.5 271 1395 14 49 01 14 54 40 J0151+2517 01 36 53 62.0 172.5 -0.3 -5.0 9 1395 14 54 40 14 56 00 =0148+250 01 38 13 62.0 173.1 -0.2 -4.5 80 1405 14 54 41 14 59 40 J0151+2517 01 41 53 62.1 174.9 -0.2 -3.4 209 1405 14 59 40 15 01 00 =0148+250 01 43 14 62.1 175.5 -0.2 -2.9 80 1416 14 59 41 15 01 00 ILTJ015915 01 43 14 61.1 171.8 -0.3 -5.4 -30 1416 No stop 15 06 00 --- 01 48 14 61.2 174.2 -0.2 -3.8 270 1454 15 01 01 15 06 40 J0151+2517 01 48 55 62.2 178.3 -0.1 -1.1 8 1454 15 06 40 15 08 00 =0148+250 01 50 15 62.2 178.9 -0.0 -0.7 80 1465 15 06 41 15 08 00 ILTJ015915 01 50 15 61.2 175.1 -0.2 -3.2 -30 1465 No stop 15 13 00 --- 01 55 16 61.3 177.5 -0.1 -1.7 270 1503 15 08 01 15 15 00 ILTJ015915 01 57 16 61.3 178.4 -0.1 -1.0 110 1503 15 15 00 15 20 00 --- 02 02 17 61.3 180.8 0.0 0.5 300 1542 15 15 01 15 20 40 J0151+2517 02 02 57 62.1 185.1 0.2 3.4 8 1542 15 20 40 15 22 00 =0148+250 02 04 17 62.1 185.7 0.2 3.8 80 1552 15 20 41 15 22 00 ILTJ015915 02 04 17 61.3 181.7 0.1 1.1 -31 1552 No stop 15 27 00 --- 02 09 18 61.3 184.1 0.1 2.7 269 1591 15 22 01 15 27 40 J0151+2517 02 09 58 62.0 188.4 0.3 5.6 7 1591 15 27 40 15 29 00 =0148+250 02 11 18 62.0 189.1 0.3 6.0 80 1601 15 27 41 15 32 40 J0151+2517 02 14 59 61.9 190.8 0.4 7.2 210 1601 15 32 40 15 34 00 =0148+250 02 16 19 61.8 191.5 0.4 7.6 80 1612 15 32 41 15 34 00 ILTJ015915 02 16 19 61.1 187.4 0.3 4.9 -31 1612 No stop 15 39 00 --- 02 21 20 61.0 189.8 0.3 6.4 269 1650 15 34 01 15 39 40 J0151+2517 02 22 00 61.6 194.2 0.5 9.3 7 1650 15 39 40 15 41 00 =0148+250 02 23 20 61.6 194.8 0.5 9.7 80 1660 15 39 41 15 41 00 ILTJ015915 02 23 20 61.0 190.7 0.4 7.0 -31 1660 No stop 15 46 00 --- 02 28 21 60.8 193.0 0.5 8.5 269 1699 15 41 01 15 48 00 ILTJ015915 02 30 21 60.8 194.0 0.5 9.1 110 1699 15 48 00 15 52 40 --- 02 35 02 60.6 196.1 0.6 10.5 280 1735 15 48 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 ---------------------------------------------------------------------------------------- --- Mon 4 Mar 2024 Day 64 --- 15 53 20 J0151+2517 02 35 42 61.0 200.5 0.7 13.4 7 1735 15 53 20 15 54 20 =0148+250 02 36 42 61.0 200.9 0.7 13.7 60 1743 15 53 21 15 54 20 ILTJ015915 02 36 42 60.5 196.9 0.6 11.0 -31 1743 No stop 15 58 20 --- 02 40 43 60.3 198.7 0.7 12.2 209 1774 15 54 21 15 59 00 J0151+2517 02 41 23 60.7 203.0 0.8 15.0 7 1774 15 59 00 16 00 00 =0148+250 02 42 23 60.6 203.5 0.8 15.3 60 1782 15 59 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: 2 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: 2 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) * ILTJ015915 01 56 27.193418 * 01 59 15.785900 02 00 35.990298 0.00 24 10 28.28454 * 24 25 00.69438 24 32 02.04437 0.00 From catalog imbedded in main SCHED input file. * B0329+54_D 03 29 11.066308 * 03 32 59.368000 03 34 48.638484 0.00 54 24 37.47697 * 54 34 43.57000 54 39 48.36229 0.00 From catalog imbedded in main SCHED input file. 0143+230 01 43 06.540944 * 01 45 52.906251 01 47 11.981753 0.11 * J0145+2319 23 04 19.64260 * 23 19 19.29804 23 26 32.94040 0.15 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 189 observations. 0148+250 01 48 18.016496 * 01 51 06.233864 01 52 26.204000 0.18 * J0151+2517 25 02 39.27253 * 25 17 28.66225 25 24 38.10204 0.29 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 122 observations. 0202+240 02 02 32.139201 * 02 05 21.322716 02 06 41.845975 0.15 * J0205+2416 24 02 13.83766 * 24 16 32.85044 24 23 27.94308 0.18 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 113 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 ILTJ015915 sess124.L1024 1 2 3 4 5 6 7 8 9 10 15 16 2.894 294.350 B0329+54_D sess124.L1024 1 2 3 4 5 6 7 8 9 10 0.025 2.275 J0145+2319 sess124.L1024 1 2 3 4 5 6 7 8 9 10 15 16 0.133 15.498 J0151+2517 sess124.L1024 1 2 3 4 5 6 7 8 9 10 15 16 0.989 106.297 J0205+2416 sess124.L1024 1 3 4 5 6 7 8 9 10 15 16 0.400 32.133 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) ILTJ015915 53.0 B0329+54_D 82.6 J0145+2319 49.8 J0151+2517 51.9 J0205+2416 54.2 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