COVER INFORMATION Station: TIANMA65 (Code T6 ) 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 TIANMA65 (Code T6 ) 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 --- ---------- Fringe finder 1/1 ---------- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 643.51 643.51 643.51 643.51 579.51 579.51 579.51 579.51 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 11 04 20 J0145+2319 05 59 41 34.1 278.8 4.2 67.3 0 0 11 04 20 11 08 20 =0143+230 06 03 42 33.3 279.2 4.3 67.1 240 31 11 04 21 11 09 00 J0151+2517 06 04 22 35.0 280.9 4.2 68.6 31 31 11 09 00 11 10 20 =0148+250 06 05 42 34.7 281.1 4.2 68.5 80 41 11 09 01 11 10 20 ILTJ015915 06 05 42 36.1 279.2 4.1 68.3 -8 41 No stop 11 15 20 --- 06 10 43 35.0 279.8 4.2 68.1 292 80 11 10 21 11 16 00 J0151+2517 06 11 23 33.5 281.6 4.3 68.2 32 80 11 16 00 11 17 20 =0148+250 06 12 44 33.2 281.8 4.3 68.1 80 90 11 16 01 11 17 20 ILTJ015915 06 12 44 34.6 280.0 4.2 68.0 -7 90 No stop 11 22 20 --- 06 17 44 33.5 280.5 4.3 67.8 293 129 11 17 21 11 23 00 J0151+2517 06 18 24 32.0 282.4 4.4 67.8 32 129 11 23 00 11 24 20 =0148+250 06 19 45 31.7 282.5 4.5 67.8 80 139 11 23 01 11 24 20 ILTJ015915 06 19 45 33.1 280.7 4.3 67.7 -7 139 No stop 11 29 20 --- 06 24 46 32.1 281.2 4.4 67.4 293 178 11 24 21 11 30 00 J0151+2517 06 25 26 30.5 283.1 4.5 67.4 32 178 11 30 00 11 31 20 =0148+250 06 26 46 30.3 283.2 4.6 67.4 80 188 11 30 01 11 31 20 J0205+2416 06 26 46 32.9 280.6 4.3 67.5 -12 188 No stop 11 34 20 =0202+240 06 29 46 32.2 280.9 4.4 67.4 168 211 11 31 21 11 35 00 J0151+2517 06 30 26 29.5 283.6 4.6 67.2 27 211 11 35 00 11 36 20 =0148+250 06 31 47 29.2 283.7 4.7 67.1 80 222 11 35 01 11 36 20 ILTJ015915 06 31 47 30.6 281.9 4.5 67.1 -7 222 No stop 11 41 20 --- 06 36 47 29.5 282.5 4.6 66.8 293 260 11 36 21 11 42 00 J0151+2517 06 37 28 28.0 284.3 4.8 66.8 32 260 11 42 00 11 43 20 =0148+250 06 38 48 27.8 284.4 4.8 66.7 80 271 11 42 01 11 43 20 ILTJ015915 06 38 48 29.1 282.7 4.6 66.7 -7 271 No stop 11 48 20 --- 06 43 49 28.1 283.2 4.7 66.4 293 309 11 43 21 Schedule for TIANMA65 (Code T6 ) 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 49 00 J0151+2517 06 44 29 26.6 285.0 4.9 66.3 33 309 11 49 00 11 50 20 =0148+250 06 45 49 26.3 285.1 4.9 66.2 80 319 11 49 01 11 50 20 ILTJ015915 06 45 49 27.7 283.4 4.8 66.3 -7 319 No stop 11 55 20 --- 06 50 50 26.6 283.9 4.8 66.0 293 358 11 50 21 11 56 00 J0151+2517 06 51 30 25.1 285.7 5.0 65.9 33 358 11 56 00 11 57 20 =0148+250 06 52 50 24.9 285.8 5.0 65.8 80 368 11 56 01 11 57 20 ILTJ015915 06 52 50 26.2 284.1 4.9 65.9 -7 368 No stop 12 02 20 --- 06 57 51 25.2 284.6 5.0 65.6 293 407 11 57 21 12 03 00 J0151+2517 06 58 31 23.7 286.4 5.1 65.4 33 407 12 03 00 12 04 20 =0148+250 06 59 51 23.4 286.5 5.1 65.3 80 417 12 03 01 12 04 20 J0205+2416 06 59 51 25.9 284.1 4.9 65.8 -12 417 No stop 12 07 20 =0202+240 07 02 52 25.3 284.4 4.9 65.6 168 441 12 04 21 12 08 00 J0151+2517 07 03 32 22.7 286.9 5.2 65.1 28 441 12 08 00 12 09 20 =0148+250 07 04 52 22.4 287.1 5.2 65.0 80 451 12 08 01 12 09 20 ILTJ015915 07 04 52 23.7 285.4 5.1 65.2 -7 451 No stop 12 14 20 --- 07 09 53 22.7 285.9 5.2 64.9 293 490 12 09 21 12 15 00 J0151+2517 07 10 33 21.2 287.7 5.3 64.6 33 490 12 15 00 12 16 20 =0148+250 07 11 53 21.0 287.8 5.3 64.5 80 500 12 15 01 12 16 20 ILTJ015915 07 11 53 22.3 286.1 5.2 64.8 -7 500 No stop 12 21 20 --- 07 16 54 21.2 286.6 5.3 64.4 293 538 12 16 21 12 22 00 J0151+2517 07 17 34 19.8 288.4 5.4 64.1 33 538 12 22 00 12 23 20 =0148+250 07 18 54 19.5 288.5 5.4 64.0 80 549 12 22 01 12 23 20 ILTJ015915 07 18 54 20.8 286.8 5.3 64.3 -7 549 No stop 12 28 20 --- 07 23 55 19.8 287.4 5.4 64.0 293 587 12 23 21 12 29 00 J0151+2517 07 24 35 18.4 289.1 5.5 63.6 33 587 12 29 00 12 30 20 =0148+250 07 25 56 18.1 289.3 5.6 63.5 80 598 12 29 01 12 30 20 ILTJ015915 07 25 56 19.4 287.6 5.4 63.8 -7 598 No stop 12 35 20 --- 07 30 56 18.4 288.1 5.5 63.5 293 636 12 30 21 12 36 00 J0151+2517 07 31 36 17.0 289.9 5.7 63.1 33 636 12 36 00 12 37 20 =0148+250 07 32 57 16.7 290.0 5.7 63.0 80 647 12 36 01 Schedule for TIANMA65 (Code T6 ) 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 --- 12 37 20 J0205+2416 07 32 57 19.1 287.5 5.4 63.7 -12 647 No stop 12 40 20 =0202+240 07 35 57 18.5 287.9 5.5 63.5 168 670 12 37 21 12 41 00 J0151+2517 07 36 37 16.0 290.4 5.7 62.7 28 670 12 41 00 12 42 20 =0148+250 07 37 57 15.7 290.6 5.8 62.6 80 680 12 41 01 12 42 20 ILTJ015915 07 37 57 16.9 288.9 5.6 63.0 -7 680 No stop 12 47 20 --- 07 42 58 15.9 289.4 5.7 62.6 293 719 12 42 21 12 48 00 J0151+2517 07 43 38 14.6 291.2 5.9 62.1 33 719 12 48 00 12 49 20 =0148+250 07 44 59 14.3 291.3 5.9 62.0 80 729 12 48 01 ---------- Fringe finder 2/1 ---------- 12 50 00 J0145+2319 07 45 39 12.2 290.2 6.0 61.2 30 729 12 50 00 12 54 00 =0143+230 07 49 39 11.4 290.7 6.0 60.9 240 760 12 50 01 12 54 40 J0151+2517 07 50 20 13.2 291.9 6.0 61.6 30 760 12 54 40 12 56 00 =0148+250 07 51 40 13.0 292.1 6.0 61.5 80 770 12 54 41 12 56 00 ILTJ015915 07 51 40 14.2 290.4 5.9 62.0 -7 770 No stop 13 01 00 --- 07 56 41 13.2 290.9 5.9 61.6 293 809 12 56 01 13 01 40 J0151+2517 07 57 21 11.8 292.7 6.1 61.0 33 809 13 01 40 13 03 00 =0148+250 07 58 41 11.6 292.8 6.1 60.9 80 819 13 01 41 13 03 00 ILTJ015915 07 58 41 12.8 291.1 6.0 61.4 -7 819 No stop 13 08 00 --- 08 03 42 11.8 291.7 6.1 61.0 293 858 13 03 01 13 08 40 J0151+2517 08 04 22 10.4 293.5 6.2 60.4 33 858 13 08 40 13 10 00 =0148+250 08 05 42 10.2 293.6 6.2 60.3 80 868 13 08 41 13 10 00 ILTJ015915 08 05 42 11.4 291.9 6.1 60.8 -7 868 No stop 13 15 00 --- 08 10 43 10.4 292.5 6.2 60.4 293 907 13 10 01 13 17 00 J0205+2416 08 12 43 11.1 291.9 6.1 60.7 113 907 13 17 00 13 20 00 =0202+240 08 15 44 10.5 292.2 6.2 60.5 180 930 13 17 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: 11 Station: TIANMA65 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= 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 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 5 1 5 2 6 2 6 BBC SB= U U L L U U L L IF = A4 B3 A4 B3 A4 B3 A4 B3 The following frequency sets based on these setups were used. Frequency Set: 16 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= 643.51 643.51 643.51 643.51 579.51 579.51 579.51 579.51 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 16 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