COVER INFORMATION Station: IRBENE (Code Ir ) Experiment: Characterizing OCRs in dwarf galaxies Exp. Code: ev026c 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 ILTJ125915.34+274604.2 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 its source size, and evalute if the radio emission is due to star formation processes or not. Schedule for IRBENE (Code Ir ) 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 ---------------------------------------------------------------------------------------- --- Sat 9 Mar 2024 Day 69 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 276.49 276.49 276.49 276.49 340.49 340.49 340.49 340.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 20 00 00 J1300+2830 08 39 25 36.6-266.3 -4.4 -37.5 0 0 20 00 00 20 02 00 =1258+287 08 41 25 36.9-265.8 -4.3 -37.5 120 15 20 00 01 20 02 00 ILTJ125915 08 41 25 36.5-265.0 -4.3 -37.1 -3 15 No stop 20 07 00 --- 08 46 26 37.1-263.9 -4.2 -37.0 297 54 20 02 01 20 07 30 J1300+2830 08 46 56 37.6-264.6 -4.2 -37.4 27 54 20 07 30 20 08 50 =1258+287 08 48 16 37.8-264.3 -4.2 -37.4 80 64 20 07 31 20 08 50 ILTJ125915 08 48 16 37.4-263.5 -4.2 -37.0 -3 64 No stop 20 13 50 --- 08 53 17 38.0-262.4 -4.1 -36.9 297 103 20 08 51 20 14 20 J1300+2830 08 53 47 38.5-263.1 -4.1 -37.3 27 103 20 14 20 20 15 40 =1258+287 08 55 07 38.7-262.8 -4.1 -37.2 80 113 20 14 21 20 15 40 ILTJ125915 08 55 07 38.3-262.0 -4.1 -36.8 -3 113 No stop 20 20 40 --- 09 00 08 38.9-260.8 -4.0 -36.7 297 152 20 15 41 20 21 10 J1300+2830 09 00 38 39.4-261.6 -4.0 -37.1 27 152 20 21 10 20 22 30 =1258+287 09 01 58 39.6-261.2 -4.0 -37.1 80 162 20 21 11 20 22 30 J1258+2820 09 01 58 39.8-260.6 -4.0 -36.9 -3 162 No stop 20 25 30 =1255+286 09 04 59 40.2-259.9 -3.9 -36.8 177 185 20 22 31 20 26 00 J1300+2830 09 05 29 40.1-260.4 -3.9 -37.0 27 185 20 26 00 20 27 20 =1258+287 09 06 49 40.3-260.1 -3.9 -36.9 80 196 20 26 01 20 27 20 ILTJ125915 09 06 49 39.8-259.3 -3.9 -36.5 -3 196 No stop 20 32 20 --- 09 11 50 40.5-258.1 -3.8 -36.3 297 234 20 27 21 20 32 50 J1300+2830 09 12 20 41.0-258.9 -3.8 -36.7 27 234 20 32 50 20 34 10 =1258+287 09 13 40 41.2-258.5 -3.8 -36.7 80 245 20 32 51 20 34 10 ILTJ125915 09 13 40 40.7-257.7 -3.8 -36.3 -3 245 No stop 20 39 10 --- 09 18 41 41.4-256.5 -3.7 -36.1 297 283 20 34 11 20 39 40 J1300+2830 09 19 11 41.9-257.2 -3.7 -36.5 27 283 20 39 40 20 41 00 =1258+287 09 20 31 42.1-256.9 -3.7 -36.4 80 294 20 39 41 20 41 00 ILTJ125915 09 20 31 41.6-256.1 -3.7 -36.0 -3 294 No stop 20 46 00 --- 09 25 32 42.3-254.8 -3.6 -35.8 297 332 20 41 01 Schedule for IRBENE (Code Ir ) 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 ---------------------------------------------------------------------------------------- --- Sat 9 Mar 2024 Day 69 --- 20 46 30 J1300+2830 09 26 02 42.8-255.6 -3.6 -36.2 27 332 20 46 30 20 47 50 =1258+287 09 27 23 42.9-255.3 -3.6 -36.1 80 343 20 46 31 20 47 50 ILTJ125915 09 27 23 42.5-254.4 -3.6 -35.7 -3 343 No stop 20 52 50 --- 09 32 23 43.2-253.2 -3.5 -35.4 297 381 20 47 51 20 53 20 J1300+2830 09 32 53 43.7-253.9 -3.5 -35.9 27 381 20 53 20 20 54 40 =1258+287 09 34 14 43.8-253.6 -3.5 -35.8 80 392 20 53 21 20 54 40 J1258+2820 09 34 14 44.0-252.9 -3.4 -35.6 -3 392 No stop 20 57 40 =1255+286 09 37 14 44.4-252.1 -3.4 -35.4 177 415 20 54 41 20 58 10 J1300+2830 09 37 44 44.3-252.7 -3.4 -35.6 27 415 20 58 10 20 59 30 =1258+287 09 39 04 44.5-252.4 -3.4 -35.5 80 425 20 58 11 20 59 30 ILTJ125915 09 39 04 44.0-251.5 -3.4 -35.0 -3 425 No stop 21 04 30 --- 09 44 05 44.6-250.2 -3.3 -34.7 297 464 20 59 31 21 05 00 J1300+2830 09 44 35 45.2-251.0 -3.3 -35.2 27 464 21 05 00 21 06 20 =1258+287 09 45 56 45.3-250.7 -3.3 -35.1 80 474 21 05 01 ---------- Fringe finder 1/2 (all dishes elevation >20 deg) ---------- 21 07 30 J1327+2210 09 47 06 36.9-252.2 -3.7 -33.5 63 474 21 07 30 21 11 30 =1324+224 09 51 06 37.4-251.3 -3.6 -33.2 240 505 21 07 31 21 12 50 J1300+2830 09 52 27 46.1-249.0 -3.2 -34.7 73 505 21 12 50 21 14 10 =1258+287 09 53 47 46.3-248.6 -3.1 -34.6 80 515 21 12 51 21 14 10 ILTJ125915 09 53 47 45.9-247.7 -3.1 -34.1 -3 515 No stop 21 19 10 --- 09 58 48 46.5-246.4 -3.0 -33.7 297 554 21 14 11 21 19 40 J1300+2830 09 59 18 47.0-247.2 -3.0 -34.2 27 554 21 19 40 21 21 00 =1258+287 10 00 38 47.2-246.8 -3.0 -34.1 80 564 21 19 41 21 21 00 ILTJ125915 10 00 38 46.7-245.9 -3.0 -33.6 -3 564 No stop 21 26 00 --- 10 05 39 47.3-244.5 -2.9 -33.1 297 603 21 21 01 21 26 30 J1300+2830 10 06 09 47.8-245.3 -2.9 -33.6 27 603 21 26 30 21 27 50 =1258+287 10 07 29 48.0-245.0 -2.9 -33.5 80 613 21 26 31 21 27 50 ILTJ125915 10 07 29 47.5-244.0 -2.9 -33.0 -3 613 No stop 21 32 50 --- 10 12 30 48.1-242.6 -2.8 -32.5 297 652 21 27 51 Schedule for IRBENE (Code Ir ) 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 ---------------------------------------------------------------------------------------- --- Sat 9 Mar 2024 Day 69 --- 21 33 20 J1300+2830 10 13 00 48.7-243.4 -2.8 -33.0 27 652 21 33 20 21 34 40 =1258+287 10 14 20 48.8-243.1 -2.8 -32.9 80 662 21 33 21 21 34 40 J1258+2820 10 14 20 49.0-242.2 -2.7 -32.6 -3 662 No stop 21 37 40 =1255+286 10 17 21 49.3-241.4 -2.7 -32.3 177 685 21 34 41 21 38 10 J1300+2830 10 17 51 49.2-242.1 -2.7 -32.6 27 685 21 38 10 21 39 30 =1258+287 10 19 11 49.4-241.7 -2.7 -32.5 80 696 21 38 11 21 39 30 ILTJ125915 10 19 11 48.9-240.7 -2.7 -31.9 -3 696 No stop 21 44 30 --- 10 24 12 49.5-239.3 -2.6 -31.4 297 734 21 39 31 21 45 00 J1300+2830 10 24 42 50.0-240.1 -2.6 -31.9 27 734 21 45 00 21 46 20 =1258+287 10 26 02 50.2-239.7 -2.6 -31.8 80 745 21 45 01 21 46 20 ILTJ125915 10 26 02 49.7-238.7 -2.6 -31.2 -3 745 No stop 21 51 20 --- 10 31 03 50.3-237.3 -2.5 -30.6 297 783 21 46 21 21 51 50 J1300+2830 10 31 33 50.8-238.1 -2.5 -31.2 27 783 21 51 50 21 53 10 =1258+287 10 32 53 51.0-237.7 -2.5 -31.0 80 794 21 51 51 21 53 10 ILTJ125915 10 32 53 50.5-236.7 -2.5 -30.4 -3 794 No stop 21 58 10 --- 10 37 54 51.1-235.2 -2.4 -29.8 297 832 21 53 11 21 58 40 J1300+2830 10 38 24 51.6-236.0 -2.4 -30.4 27 832 21 58 40 22 00 00 =1258+287 10 39 44 51.8-235.6 -2.4 -30.2 80 842 21 58 41 22 00 00 ILTJ125915 10 39 44 51.3-234.6 -2.3 -29.6 -3 842 No stop 22 05 00 --- 10 44 45 51.8-233.1 -2.3 -29.0 297 881 22 00 01 22 05 30 J1300+2830 10 45 15 52.4-233.9 -2.3 -29.5 27 881 22 05 30 22 06 50 =1258+287 10 46 36 52.5-233.5 -2.3 -29.3 80 891 22 05 31 22 06 50 J1258+2820 10 46 36 52.6-232.6 -2.2 -28.9 -3 891 No stop 22 09 50 =1255+286 10 49 36 52.9-231.6 -2.2 -28.5 177 915 22 06 51 22 10 20 J1300+2830 10 50 06 52.9-232.4 -2.2 -28.9 27 915 22 10 20 22 11 40 =1258+287 10 51 26 53.0-231.9 -2.2 -28.7 80 925 22 10 21 22 11 40 ILTJ125915 10 51 26 52.5-231.0 -2.2 -28.1 -3 925 No stop 22 16 40 --- 10 56 27 53.0-229.3 -2.1 -27.3 297 964 22 11 41 22 17 10 J1300+2830 10 56 57 53.6-230.1 -2.1 -27.9 27 964 22 17 10 22 18 30 =1258+287 10 58 17 53.7-229.7 -2.1 -27.7 80 974 22 17 11 Schedule for IRBENE (Code Ir ) 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 ---------------------------------------------------------------------------------------- --- Sat 9 Mar 2024 Day 69 --- 22 18 30 ILTJ125915 10 58 17 53.2-228.7 -2.0 -27.1 -3 974 No stop 22 23 30 --- 11 03 18 53.7-227.1 -2.0 -26.3 297 1013 22 18 31 22 24 00 J1300+2830 11 03 48 54.3-227.9 -2.0 -26.9 27 1013 22 24 00 22 25 20 =1258+287 11 05 09 54.4-227.4 -1.9 -26.7 80 1023 22 24 01 22 25 20 ILTJ125915 11 05 09 53.9-226.4 -1.9 -26.0 -3 1023 No stop 22 30 20 --- 11 10 09 54.4-224.7 -1.8 -25.2 297 1061 22 25 21 22 30 50 J1300+2830 11 10 39 55.0-225.5 -1.9 -25.8 27 1061 22 30 50 22 32 10 =1258+287 11 12 00 55.1-225.1 -1.8 -25.6 80 1072 22 30 51 22 32 10 ILTJ125915 11 12 00 54.5-224.1 -1.8 -24.9 -3 1072 No stop 22 37 10 --- 11 17 00 55.0-222.3 -1.7 -24.1 297 1110 22 32 11 22 37 40 J1300+2830 11 17 31 55.6-223.1 -1.7 -24.6 27 1110 22 37 40 22 39 00 =1258+287 11 18 51 55.7-222.7 -1.7 -24.4 80 1121 22 37 41 22 39 00 J1258+2820 11 18 51 55.8-221.7 -1.7 -23.9 -4 1121 No stop 22 42 00 =1255+286 11 21 51 56.1-220.6 -1.6 -23.3 176 1144 22 39 01 22 42 30 J1300+2830 11 22 21 56.0-221.4 -1.7 -23.8 26 1144 22 42 30 22 43 50 =1258+287 11 23 42 56.2-220.9 -1.6 -23.5 80 1154 22 42 31 22 43 50 ILTJ125915 11 23 42 55.6-220.0 -1.6 -22.9 -3 1154 No stop 22 48 50 --- 11 28 42 56.0-218.1 -1.5 -22.0 297 1193 22 43 51 22 49 20 J1300+2830 11 29 12 56.6-218.9 -1.5 -22.5 27 1193 22 49 20 22 50 40 =1258+287 11 30 33 56.7-218.4 -1.5 -22.3 80 1203 22 49 21 22 50 40 ILTJ125915 11 30 33 56.2-217.5 -1.5 -21.6 -3 1203 No stop 22 55 40 --- 11 35 34 56.6-215.6 -1.4 -20.6 297 1242 22 50 41 22 56 10 J1300+2830 11 36 04 57.2-216.3 -1.4 -21.2 27 1242 22 56 10 22 57 30 =1258+287 11 37 24 57.3-215.8 -1.4 -20.9 80 1252 22 56 11 22 57 30 ILTJ125915 11 37 24 56.7-214.9 -1.4 -20.3 -3 1252 No stop 23 02 30 --- 11 42 25 57.1-213.0 -1.3 -19.2 297 1291 22 57 31 23 03 00 J1300+2830 11 42 55 57.7-213.7 -1.3 -19.8 27 1291 23 03 00 23 04 20 =1258+287 11 44 15 57.8-213.2 -1.3 -19.5 80 1301 23 03 01 23 04 20 ILTJ125915 11 44 15 57.2-212.3 -1.3 -18.9 -3 1301 No stop 23 09 20 --- 11 49 16 57.6-210.3 -1.2 -17.8 297 1340 23 04 21 Schedule for IRBENE (Code Ir ) 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 ---------------------------------------------------------------------------------------- --- Sat 9 Mar 2024 Day 69 --- 23 09 50 J1300+2830 11 49 46 58.2-211.0 -1.2 -18.3 27 1340 23 09 50 23 11 10 =1258+287 11 51 06 58.3-210.5 -1.2 -18.0 80 1350 23 09 51 23 11 10 J1258+2820 11 51 06 58.3-209.4 -1.1 -17.4 -4 1350 No stop 23 14 10 =1255+286 11 54 07 58.5-208.2 -1.1 -16.7 176 1373 23 11 11 23 14 40 J1300+2830 11 54 37 58.5-209.1 -1.1 -17.2 26 1373 23 14 40 23 16 00 =1258+287 11 55 57 58.6-208.6 -1.1 -16.9 80 1384 23 14 41 23 16 00 ILTJ125915 11 55 57 58.0-207.7 -1.1 -16.3 -3 1384 No stop 23 21 00 --- 12 00 58 58.3-205.6 -1.0 -15.2 297 1422 23 16 01 23 21 30 J1300+2830 12 01 28 59.0-206.3 -1.0 -15.7 27 1422 23 21 30 23 22 50 =1258+287 12 02 48 59.0-205.8 -1.0 -15.4 80 1432 23 21 31 23 22 50 ILTJ125915 12 02 48 58.4-204.9 -1.0 -14.8 -3 1432 No stop 23 27 50 --- 12 07 49 58.7-202.8 -0.9 -13.6 297 1471 23 22 51 23 28 20 J1300+2830 12 08 19 59.4-203.5 -0.9 -14.1 27 1471 23 28 20 23 29 40 =1258+287 12 09 39 59.4-202.9 -0.9 -13.7 80 1481 23 28 21 23 29 40 ILTJ125915 12 09 39 58.8-202.1 -0.8 -13.1 -3 1481 No stop 23 34 40 --- 12 14 40 59.0-200.0 -0.8 -11.9 297 1520 23 29 41 23 35 10 J1300+2830 12 15 10 59.7-200.6 -0.8 -12.4 27 1520 23 35 10 23 36 30 =1258+287 12 16 30 59.8-200.0 -0.8 -12.0 80 1530 23 35 11 23 36 30 ILTJ125915 12 16 30 59.1-199.2 -0.7 -11.5 -3 1530 No stop 23 41 30 --- 12 21 31 59.3-197.1 -0.6 -10.2 297 1569 23 36 31 23 42 00 J1300+2830 12 22 01 60.0-197.6 -0.7 -10.6 27 1569 23 42 00 23 43 20 =1258+287 12 23 21 60.1-197.1 -0.6 -10.3 80 1579 23 42 01 23 43 20 J1258+2820 12 23 21 60.0-195.9 -0.6 -9.6 -4 1579 No stop 23 46 20 =1255+286 12 26 22 60.1-194.6 -0.5 -8.8 176 1603 23 43 21 23 46 50 J1300+2830 12 26 52 60.2-195.5 -0.6 -9.4 26 1603 23 46 50 23 48 10 =1258+287 12 28 12 60.2-194.9 -0.6 -9.0 80 1613 23 46 51 23 48 10 ILTJ125915 12 28 12 59.5-194.2 -0.5 -8.5 -3 1613 No stop 23 53 10 --- 12 33 13 59.7-192.0 -0.5 -7.2 297 1651 23 48 11 23 53 40 J1300+2830 12 33 43 60.4-192.5 -0.5 -7.6 27 1651 23 53 40 23 55 00 =1258+287 12 35 03 60.4-191.9 -0.4 -7.2 80 1662 23 53 41 Schedule for IRBENE (Code Ir ) 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 ---------------------------------------------------------------------------------------- --- Start: Sat 9 Mar 2024 Day 69 -- Stop: Sun 10 Mar 2024 Day 70 --- ---------- Fringe finder 2/2 (all dishes elevation >20 deg) ---------- 23 56 10 J1327+2210 12 36 13 53.3-200.4 -0.9 -11.6 63 1662 23 56 10 00 00 10 =1324+224 12 40 14 53.4-198.9 -0.8 -10.8 240 1693 23 56 11 00 01 30 J1300+2830 12 41 34 60.6-189.0 -0.3 -5.5 72 1693 00 01 30 00 02 50 =1258+287 12 42 55 60.6-188.4 -0.3 -5.1 80 1703 00 01 31 00 02 50 ILTJ125915 12 42 55 59.9-187.8 -0.3 -4.7 -3 1703 No stop 00 07 50 --- 12 47 55 60.0-185.6 -0.2 -3.4 297 1742 00 02 51 00 08 20 J1300+2830 12 48 25 60.7-186.0 -0.2 -3.6 27 1742 00 08 20 00 09 40 =1258+287 12 49 46 60.7-185.4 -0.2 -3.3 80 1752 00 08 21 00 09 40 ILTJ125915 12 49 46 60.0-184.7 -0.2 -2.9 -3 1752 No stop 00 14 40 --- 12 54 47 60.1-182.5 -0.1 -1.5 297 1791 00 09 41 00 15 10 J1300+2830 12 55 17 60.8-182.9 -0.1 -1.8 27 1791 00 15 10 00 16 30 =1258+287 12 56 37 60.8-182.3 -0.1 -1.4 80 1801 00 15 11 00 16 30 ILTJ125915 12 56 37 60.1-181.7 -0.1 -1.0 -3 1801 No stop 00 21 30 --- 13 01 38 60.1-179.5 0.0 0.3 297 1840 00 16 31 00 22 00 J1300+2830 13 02 08 60.8-179.8 0.0 0.1 27 1840 00 22 00 00 23 20 =1258+287 13 03 28 60.8-179.2 0.0 0.5 80 1850 00 22 01 00 23 20 J1258+2820 13 03 28 60.6-178.1 0.1 1.2 -4 1850 No stop 00 26 20 =1255+286 13 06 28 60.6-176.7 0.1 2.0 176 1873 00 23 21 00 26 50 J1300+2830 13 06 59 60.8-177.6 0.1 1.5 26 1873 00 26 50 00 28 10 =1258+287 13 08 19 60.8-177.0 0.1 1.8 80 1883 00 26 51 00 28 10 ILTJ125915 13 08 19 60.0-176.5 0.1 2.1 -3 1883 No stop 00 33 10 --- 13 13 20 60.0-174.3 0.2 3.5 297 1922 00 28 11 00 33 40 J1300+2830 13 13 50 60.7-174.5 0.2 3.3 27 1922 00 33 40 00 35 00 =1258+287 13 15 10 60.7-173.9 0.2 3.7 80 1932 00 33 41 00 35 00 ILTJ125915 13 15 10 60.0-173.5 0.2 3.9 -3 1932 No stop 00 40 00 --- 13 20 11 59.9-171.3 0.3 5.3 297 1971 00 35 01 00 40 30 J1300+2830 13 20 41 60.6-171.4 0.3 5.2 27 1971 00 40 30 00 41 50 =1258+287 13 22 01 60.6-170.9 0.3 5.6 80 1981 00 40 31 Schedule for IRBENE (Code Ir ) Page 8 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 ---------------------------------------------------------------------------------------- --- Sun 10 Mar 2024 Day 70 --- 00 41 50 ILTJ125915 13 22 01 59.8-170.5 0.4 5.8 -3 1981 No stop 00 46 50 --- 13 27 02 59.7-168.3 0.4 7.1 297 2020 00 41 51 00 47 20 J1300+2830 13 27 32 60.5-168.4 0.4 7.0 27 2020 00 47 20 00 48 40 =1258+287 13 28 52 60.4-167.8 0.5 7.4 80 2030 00 47 21 ---------- Test pulsar 2/2 ---------- 00 49 50 B1237+25_D 13 30 02 56.0-159.8 0.8 11.8 63 2030 00 49 50 00 53 10 --- 13 33 23 55.9-158.4 0.9 12.5 200 2056 00 49 51 ---------- eMERLIN amplitude calibrator ---------- 00 55 00 3C286 13 35 13 62.8-178.6 0.0 0.9 97 2056 00 55 00 01 00 00 --- 13 40 14 62.8-176.2 0.1 2.3 300 2095 00 55 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: 9 Station: IRBENE 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= 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A2 C2 A2 C2 A2 C2 A2 C2 The following frequency sets based on these setups were used. Frequency Set: 11 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= 276.49 276.49 276.49 276.49 340.49 340.49 340.49 340.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 11 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) * ILTJ125915 12 56 50.442216 * 12 59 15.343910 13 00 26.682268 0.00 28 02 14.21847 * 27 46 04.24592 27 38 03.96884 0.00 From catalog imbedded in main SCHED input file. * B1237+25_D 12 37 11.843793 * 12 39 40.400000 12 40 53.485070 0.00 25 10 17.10031 * 24 53 49.20000 24 45 41.59691 0.00 From catalog imbedded in main SCHED input file. * J1258+2820 12 55 37.050131 * 12 58 01.926046 12 59 13.266727 0.52 1255+286 28 36 13.64006 * 28 20 02.34372 28 12 01.45990 0.88 From catalog imbedded in main SCHED input file. rfc_2023a Petrov and Kovalev, in preparation 64 observations 1258+287 12 58 04.093391 * 13 00 28.530000 13 01 39.656543 0.15 * J1300+2830 28 46 18.80327 * 28 30 10.18891 28 22 10.44072 0.16 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 130 observations. 1324+224 13 24 37.118627 * 13 27 00.861311 13 28 11.461580 0.00 * J1327+2210 22 26 22.70245 * 22 10 50.16289 22 03 06.98957 0.00 J1327+22 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 46958 observations. * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 16.568150 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 22 51.91534 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 ILTJ125915 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 2.833 312.891 B1237+25_D sess124.L1024 1 2 3 4 5 6 8 9 10 11 12 0.056 5.833 J1258+2820 sess124.L1024 1 3 4 5 6 7 8 9 10 11 12 0.400 37.266 J1300+2830 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 1.011 116.203 J1327+2210 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 0.133 15.955 3C286 sess124.L1024 1 2 3 4 5 6 8 9 10 11 12 0.083 8.722 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) ILTJ125915 146.8 B1237+25_D 152.0 J1258+2820 146.7 J1300+2830 146.1 J1327+2210 144.7 3C286 139.6 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