COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Characterizing OCRs in dwarf galaxies Exp. Code: ev026f 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 J121407.57+423829.2 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 it s 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 ---------------------------------------------------------------------------------------- --- Tue 28 May 2024 Day 149 --- ---------- Fringe-finder ---------- 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 14 00 00 J1159+2914 06 17 11 25.3 74.5 -5.7 -41.3 0 0 14 00 00 14 02 00 =1156+295 06 19 11 25.6 74.9 -5.7 -41.4 120 15 14 00 01 14 02 10 J1159+2914 06 19 21 25.6 74.9 -5.7 -41.4 3 15 14 02 10 14 06 10 =1156+295 06 23 22 26.2 75.7 -5.6 -41.6 240 46 14 02 11 ---------- Going to ILTJ1214 ---------- 14 12 10 J1209+4119 06 29 23 34.4 65.3 -5.7 -46.3 292 46 14 12 10 14 13 40 =1206+416 06 30 53 34.6 65.5 -5.7 -46.4 90 58 14 12 11 14 13 40 ILTJ1214 06 30 53 34.8 63.6 -5.7 -46.7 -23 58 No stop 14 18 40 --- 06 35 54 35.5 64.4 -5.7 -47.1 277 97 14 13 41 14 20 40 ILTJ1214 06 37 54 35.8 64.7 -5.6 -47.2 112 97 14 20 40 14 25 40 --- 06 42 55 36.5 65.5 -5.5 -47.6 300 135 14 20 41 14 26 20 J1209+4119 06 43 35 36.3 67.5 -5.5 -47.3 17 135 14 26 20 14 27 40 =1206+416 06 44 55 36.5 67.8 -5.4 -47.4 80 146 14 26 21 14 27 40 ILTJ1214 06 44 55 36.7 65.8 -5.5 -47.8 -23 146 No stop 14 32 40 --- 06 49 56 37.4 66.6 -5.4 -48.2 277 184 14 27 41 14 33 20 J1209+4119 06 50 36 37.3 68.7 -5.3 -47.8 16 184 14 33 20 14 34 40 =1206+416 06 51 56 37.5 68.9 -5.3 -47.9 80 195 14 33 21 14 39 40 ILTJ1214 06 56 57 38.4 67.7 -5.3 -48.7 277 195 14 39 40 14 44 40 --- 07 01 58 39.1 68.4 -5.2 -49.0 300 233 14 39 41 14 45 20 J1209+4119 07 02 38 39.0 70.6 -5.1 -48.6 16 233 14 45 20 14 46 40 =1206+416 07 03 58 39.2 70.8 -5.1 -48.7 80 243 14 45 21 14 46 40 ILTJ1214 07 03 58 39.4 68.8 -5.2 -49.2 -23 243 No stop 14 51 40 --- 07 08 59 40.1 69.5 -5.1 -49.5 277 282 14 46 41 14 53 40 ILTJ1214 07 11 00 40.3 69.9 -5.1 -49.7 112 282 14 53 40 14 58 40 --- 07 16 00 41.0 70.6 -5.0 -50.0 300 321 14 53 41 14 59 20 J1209+4119 07 16 41 41.0 72.8 -4.9 -49.5 16 321 14 59 20 15 00 40 =1206+416 07 18 01 41.2 73.0 -4.9 -49.5 80 331 14 59 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 ---------------------------------------------------------------------------------------- --- Tue 28 May 2024 Day 149 --- 15 00 40 ILTJ1214 07 18 01 41.3 71.0 -5.0 -50.1 -24 331 No stop 15 05 40 --- 07 23 02 42.0 71.7 -4.9 -50.4 276 370 15 00 41 15 06 20 J1209+4119 07 23 42 42.0 74.0 -4.8 -49.9 16 370 15 06 20 15 07 40 =1206+416 07 25 02 42.2 74.2 -4.8 -49.9 80 380 15 06 21 15 12 40 ILTJ1214 07 30 03 43.0 72.9 -4.8 -50.9 276 380 15 12 40 15 17 40 --- 07 35 04 43.8 73.7 -4.7 -51.2 300 419 15 12 41 15 18 20 J1209+4119 07 35 44 43.7 76.0 -4.6 -50.5 15 419 15 18 20 15 19 40 =1206+416 07 37 04 43.9 76.2 -4.6 -50.6 80 429 15 18 21 ---------- Fringe-finder ---------- 15 21 00 J1159+2914 07 38 24 37.3 89.9 -4.4 -43.2 10 429 15 21 00 15 26 00 =1156+295 07 43 25 38.0 90.9 -4.3 -43.2 300 468 15 21 01 ---------- Going to ILTJ1214 ---------- 15 27 20 J1209+4119 07 44 45 45.0 77.5 -4.4 -50.9 11 468 15 27 20 15 28 50 =1206+416 07 46 15 45.2 77.7 -4.4 -51.0 90 479 15 27 21 15 28 50 ILTJ1214 07 46 15 45.4 75.5 -4.5 -51.8 -24 479 No stop 15 33 50 --- 07 51 16 46.1 76.3 -4.4 -52.1 276 518 15 28 51 15 35 50 ILTJ1214 07 53 17 46.4 76.6 -4.4 -52.2 112 518 15 35 50 15 40 50 --- 07 58 17 47.1 77.4 -4.3 -52.4 300 556 15 35 51 15 41 30 J1209+4119 07 58 57 47.1 79.9 -4.2 -51.5 15 556 15 41 30 15 42 50 =1206+416 08 00 18 47.3 80.1 -4.2 -51.6 80 567 15 41 31 15 42 50 ILTJ1214 08 00 18 47.4 77.8 -4.3 -52.5 -25 567 No stop 15 47 50 --- 08 05 18 48.2 78.6 -4.2 -52.7 275 605 15 42 51 15 48 30 J1209+4119 08 05 59 48.1 81.1 -4.1 -51.8 15 605 15 48 30 15 49 50 =1206+416 08 07 19 48.3 81.3 -4.1 -51.8 80 616 15 48 31 15 49 50 J1214+3309 08 07 19 42.2 89.2 -4.1 -45.5 -57 616 No stop 15 52 50 =1211+334 08 10 19 42.7 89.8 -4.1 -45.6 123 639 15 49 51 15 54 50 ILTJ1214 08 12 20 49.2 79.8 -4.1 -53.0 61 639 15 54 50 15 59 50 --- 08 17 20 49.9 80.6 -4.0 -53.2 300 678 15 54 51 16 00 30 J1209+4119 08 18 01 49.9 83.2 -3.9 -52.2 14 678 16 00 30 16 01 50 =1206+416 08 19 21 50.1 83.4 -3.9 -52.2 80 688 16 00 31 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 ---------------------------------------------------------------------------------------- --- Tue 28 May 2024 Day 149 --- 16 01 50 ILTJ1214 08 19 21 50.2 81.0 -3.9 -53.3 -25 688 No stop 16 06 50 --- 08 24 22 51.0 81.8 -3.9 -53.5 275 727 16 01 51 16 08 50 ILTJ1214 08 26 22 51.3 82.2 -3.8 -53.6 112 727 16 08 50 16 13 50 --- 08 31 23 52.0 83.1 -3.7 -53.7 300 765 16 08 51 16 14 30 J1209+4119 08 32 03 52.0 85.8 -3.6 -52.5 14 765 16 14 30 16 15 50 =1206+416 08 33 23 52.2 86.0 -3.6 -52.5 80 775 16 14 31 16 15 50 ILTJ1214 08 33 23 52.3 83.4 -3.7 -53.8 -26 775 No stop 16 20 50 --- 08 38 24 53.0 84.3 -3.6 -53.9 274 814 16 15 51 16 21 30 J1209+4119 08 39 04 53.1 87.1 -3.5 -52.6 14 814 16 21 30 16 22 50 =1206+416 08 40 24 53.3 87.3 -3.5 -52.6 80 824 16 21 31 16 22 50 J1214+3309 08 40 24 47.2 96.0 -3.6 -45.2 -56 824 No stop 16 25 50 =1211+334 08 43 25 47.6 96.7 -3.5 -45.2 124 848 16 22 51 16 27 50 ILTJ1214 08 45 25 54.1 85.6 -3.5 -54.1 59 848 16 27 50 16 32 50 --- 08 50 26 54.8 86.6 -3.4 -54.1 300 886 16 27 51 16 33 30 J1209+4119 08 51 06 54.9 89.4 -3.3 -52.7 13 886 16 33 30 16 34 50 =1206+416 08 52 26 55.1 89.7 -3.3 -52.7 80 897 16 33 31 16 34 50 ILTJ1214 08 52 26 55.1 86.9 -3.4 -54.2 -26 897 No stop 16 39 50 --- 08 57 27 55.9 87.9 -3.3 -54.2 274 935 16 34 51 16 41 50 ILTJ1214 08 59 27 56.2 88.3 -3.3 -54.2 112 935 16 41 50 16 46 50 --- 09 04 28 56.9 89.2 -3.2 -54.3 300 974 16 41 51 16 47 30 J1209+4119 09 05 08 57.0 92.3 -3.1 -52.6 13 974 16 47 30 16 48 50 =1206+416 09 06 28 57.2 92.6 -3.1 -52.6 80 984 16 47 31 16 48 50 ILTJ1214 09 06 28 57.2 89.6 -3.1 -54.3 -27 984 No stop 16 53 50 --- 09 11 29 58.0 90.7 -3.1 -54.3 273 1023 16 48 51 16 54 30 J1209+4119 09 12 09 58.0 93.8 -3.0 -52.5 12 1023 16 54 30 16 55 50 =1206+416 09 13 30 58.2 94.1 -3.0 -52.5 80 1033 16 54 31 16 55 50 J1214+3309 09 13 30 52.1 103.6 -3.0 -43.9 -57 1033 No stop 16 58 50 =1211+334 09 16 30 52.5 104.4 -3.0 -43.8 123 1056 16 55 51 17 00 50 ILTJ1214 09 18 30 59.0 92.1 -2.9 -54.2 54 1056 17 00 50 17 05 50 --- 09 23 31 59.8 93.2 -2.9 -54.2 300 1095 17 00 51 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 ---------------------------------------------------------------------------------------- --- Tue 28 May 2024 Day 149 --- 17 06 30 J1209+4119 09 24 11 59.8 96.5 -2.8 -52.2 11 1095 17 06 30 17 07 50 =1206+416 09 25 32 60.0 96.8 -2.8 -52.2 80 1105 17 06 31 17 07 50 ILTJ1214 09 25 32 60.1 93.6 -2.8 -54.1 -28 1105 No stop 17 12 50 --- 09 30 32 60.8 94.7 -2.7 -54.0 272 1144 17 07 51 17 14 50 ILTJ1214 09 32 33 61.1 95.1 -2.7 -54.0 112 1144 17 14 50 17 19 50 --- 09 37 34 61.9 96.3 -2.6 -53.8 300 1183 17 14 51 17 20 30 J1209+4119 09 38 14 61.9 99.8 -2.5 -51.6 11 1183 17 20 30 17 21 50 =1206+416 09 39 34 62.1 100.1 -2.5 -51.5 80 1193 17 20 31 17 21 50 ILTJ1214 09 39 34 62.2 96.8 -2.6 -53.7 -29 1193 No stop 17 26 50 --- 09 44 35 62.9 97.9 -2.5 -53.5 271 1232 17 21 51 17 27 30 J1209+4119 09 45 15 62.9 101.6 -2.4 -51.2 10 1232 17 27 30 17 28 50 =1206+416 09 46 35 63.1 101.9 -2.4 -51.1 80 1242 17 27 31 17 28 50 J1214+3309 09 46 35 56.8 112.4 -2.5 -41.3 -59 1242 No stop 17 31 50 =1211+334 09 49 36 57.2 113.3 -2.4 -41.0 121 1265 17 28 51 17 33 50 ILTJ1214 09 51 36 64.0 99.7 -2.4 -53.2 49 1265 17 33 50 17 38 50 --- 09 56 37 64.7 101.0 -2.3 -52.9 300 1304 17 33 51 17 39 30 J1209+4119 09 57 17 64.7 104.8 -2.2 -50.3 9 1304 17 39 30 17 40 50 =1206+416 09 58 37 64.9 105.2 -2.2 -50.1 80 1314 17 39 31 17 40 50 ILTJ1214 09 58 37 65.0 101.5 -2.3 -52.7 -30 1314 No stop 17 45 50 --- 10 03 38 65.7 102.8 -2.2 -52.3 270 1353 17 40 51 17 47 50 ILTJ1214 10 05 38 66.0 103.4 -2.2 -52.2 111 1353 17 47 50 17 52 50 --- 10 10 39 66.8 104.8 -2.1 -51.7 300 1391 17 47 51 17 53 30 J1209+4119 10 11 19 66.7 109.0 -2.0 -48.8 8 1391 17 53 30 17 54 50 =1206+416 10 12 39 66.9 109.4 -2.0 -48.6 80 1402 17 53 31 17 54 50 ILTJ1214 10 12 39 67.0 105.4 -2.0 -51.5 -31 1402 No stop 17 59 50 --- 10 17 40 67.8 106.9 -2.0 -51.0 269 1440 17 54 51 18 00 30 J1209+4119 10 18 20 67.7 111.2 -1.9 -47.8 7 1440 18 00 30 18 01 50 =1206+416 10 19 40 67.9 111.7 -1.8 -47.7 80 1451 18 00 31 18 01 50 J1214+3309 10 19 40 61.2 122.9 -1.9 -36.8 -62 1451 No stop 18 04 50 =1211+334 10 22 41 61.5 123.9 -1.9 -36.3 118 1474 18 01 51 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 ---------------------------------------------------------------------------------------- --- Tue 28 May 2024 Day 149 --- 18 06 50 ILTJ1214 10 24 41 68.8 109.1 -1.8 -50.1 44 1474 18 06 50 18 11 50 --- 10 29 42 69.5 110.8 -1.8 -49.4 300 1512 18 06 51 18 12 30 J1209+4119 10 30 22 69.3 115.5 -1.7 -45.9 6 1512 18 12 30 18 13 50 =1206+416 10 31 42 69.5 116.0 -1.6 -45.6 80 1523 18 12 31 18 13 50 ILTJ1214 10 31 42 69.7 111.5 -1.7 -49.1 -33 1523 No stop 18 18 50 --- 10 36 43 70.4 113.3 -1.6 -48.2 267 1561 18 13 51 18 20 50 ILTJ1214 10 38 44 70.7 114.0 -1.6 -47.9 111 1561 18 20 50 18 25 50 --- 10 43 44 71.4 115.9 -1.5 -46.9 300 1600 18 20 51 18 26 30 J1209+4119 10 44 25 71.2 121.1 -1.4 -43.0 4 1600 18 26 30 18 27 50 =1206+416 10 45 45 71.3 121.6 -1.4 -42.6 80 1610 18 26 31 18 27 50 ILTJ1214 10 45 45 71.7 116.7 -1.5 -46.5 -34 1610 No stop 18 32 50 --- 10 50 46 72.3 118.8 -1.4 -45.3 266 1649 18 27 51 18 33 30 J1209+4119 10 51 26 72.1 124.2 -1.3 -41.2 3 1649 18 33 30 18 34 50 =1206+416 10 52 46 72.2 124.8 -1.3 -40.8 80 1659 18 33 31 18 34 50 J1214+3309 10 52 46 65.0 135.7 -1.4 -29.9 -65 1659 No stop 18 37 50 =1211+334 10 55 46 65.3 137.0 -1.3 -29.2 115 1682 18 34 51 18 39 50 ILTJ1214 10 57 47 73.2 121.9 -1.3 -43.5 43 1682 18 39 50 18 44 50 --- 11 02 48 73.9 124.3 -1.2 -42.1 300 1721 18 39 51 18 45 30 J1209+4119 11 03 28 73.5 130.1 -1.1 -37.5 2 1721 18 45 30 18 46 50 =1206+416 11 04 48 73.6 130.8 -1.1 -37.0 80 1731 18 45 31 ---------- Fringe-finder ---------- 18 55 00 J1159+2914 11 12 59 64.3 155.3 -0.8 -16.6 388 1731 18 55 00 19 00 00 =1156+295 11 18 00 64.6 157.8 -0.7 -15.0 300 1770 18 55 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess224.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) * ILTJ1214 12 11 37.280056 * 12 14 07.570000 12 15 21.707455 0.00 42 55 09.49919 * 42 38 29.20000 42 30 32.22412 0.00 From catalog imbedded in main SCHED input file. * B1237+25_D 12 37 11.843793 * 12 39 40.400000 12 40 53.567676 0.00 25 10 17.10031 * 24 53 49.20000 24 45 52.16493 0.00 From catalog imbedded in main SCHED input file. 1156+295 11 56 57.786211 * 11 59 31.833912 12 00 47.466951 0.00 * J1159+2914 29 31 25.73880 * 29 14 43.82690 29 06 42.77135 0.00 J1159+29 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 78215 observations. 1206+416 12 06 51.117947 * 12 09 22.788006 12 10 37.529148 0.17 * J1209+4119 41 36 22.62761 * 41 19 41.37011 41 11 43.78026 0.16 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 150 observations. 1211+334 12 11 32.805725 * 12 14 04.115761 12 15 18.573025 0.10 * J1214+3309 33 26 25.95140 * 33 09 45.59508 33 01 45.93285 0.13 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 144 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 ILTJ1214 sess224.L1024 1 2 3 4 5 6 7 8 9 10 2.750 220.837 B1237+25_D sess224.L1024 1 3 4 5 6 7 8 9 10 0.050 3.877 J1159+2914 sess224.L1024 1 2 3 4 5 6 7 8 9 10 0.267 23.537 J1209+4119 sess224.L1024 1 2 3 4 5 6 7 8 9 10 0.961 77.882 J1214+3309 sess224.L1024 1 2 3 4 5 6 7 8 9 10 0.400 24.710 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) ILTJ1214 94.0 B1237+25_D 108.7 J1159+2914 98.8 J1209+4119 94.1 J1214+3309 99.3 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