COVER INFORMATION Station: EFLSBERG (Code Ef ) Experiment: Characterizing OCRs in dwarf galaxies Exp. Code: ev026d 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 ILTJ090406.54+530314.6 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 it s source size, and evalute if the radio emission is due to star formation processes or not. Schedule for EFLSBERG (Code Ef ) 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 24 May 2024 Day 145 --- ---------- Fringe-finder ---------- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 116.49 116.49 116.49 116.49 180.49 180.49 180.49 180.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 10 30 00 J0905+4850 03 07 36 35.5 54.1 -6.0 -51.4 0 0 10 30 00 10 32 00 =0902+490 03 09 36 35.8 54.4 -6.0 -51.6 120 15 10 30 01 ---------- Fringe-finder ---------- 10 32 00 J0905+4850 03 09 36 35.8 54.4 -6.0 -51.6 -16 15 No stop 10 34 00 =0902+490 03 11 37 36.1 54.6 -5.9 -51.8 104 31 10 32 01 ---------- Going to ILTJ0904 ---------- 10 36 00 J0902+5402 03 13 37 39.8 49.9 -5.8 -55.7 71 31 10 36 00 10 37 30 =0858+542 03 15 07 40.0 50.1 -5.8 -55.9 90 43 10 36 01 10 37 30 ILTJ0904 03 15 07 39.2 50.9 -5.8 -55.0 -30 43 No stop 10 42 30 --- 03 20 08 39.8 51.5 -5.8 -55.7 270 81 10 37 31 10 43 00 J0902+5402 03 20 38 40.6 50.6 -5.7 -56.7 0 81 10 43 00 10 44 20 =0858+542 03 21 59 40.8 50.8 -5.7 -56.8 80 91 10 43 01 10 44 20 ILTJ0904 03 21 59 40.0 51.7 -5.7 -55.9 -30 91 No stop 10 49 20 --- 03 26 59 40.6 52.2 -5.6 -56.5 270 130 10 44 21 10 49 50 J0902+5402 03 27 29 41.5 51.4 -5.6 -57.6 0 130 10 49 50 10 51 10 =0858+542 03 28 50 41.6 51.5 -5.6 -57.8 80 140 10 49 51 10 51 10 ILTJ0904 03 28 50 40.9 52.4 -5.6 -56.8 -31 140 No stop 10 56 10 --- 03 33 50 41.5 53.0 -5.5 -57.4 269 179 10 51 11 10 56 40 J0902+5402 03 34 21 42.3 52.1 -5.5 -58.5 0 179 10 56 40 10 58 00 =0858+542 03 35 41 42.5 52.2 -5.5 -58.7 80 189 10 56 41 10 58 00 J0927+3902 03 35 41 30.0 63.9 -5.9 -47.2 -79 189 No stop 11 01 00 =4C39.25 03 38 41 30.5 64.4 -5.8 -47.5 101 213 10 58 01 11 02 00 J0902+5402 03 39 41 43.0 52.6 -5.4 -59.2 -20 213 11 02 00 11 03 20 =0858+542 03 41 02 43.2 52.8 -5.4 -59.4 60 223 11 02 01 11 03 20 ILTJ0904 03 41 02 42.4 53.8 -5.4 -58.3 -31 223 No stop 11 08 20 --- 03 46 02 43.1 54.3 -5.3 -59.0 269 262 11 03 21 Schedule for EFLSBERG (Code Ef ) 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 24 May 2024 Day 145 --- 11 08 50 J0902+5402 03 46 33 43.9 53.3 -5.3 -60.1 -1 262 11 08 50 11 10 10 =0858+542 03 47 53 44.0 53.5 -5.3 -60.3 79 272 11 08 51 11 10 10 ILTJ0904 03 47 53 43.3 54.5 -5.3 -59.2 -31 272 No stop 11 15 10 --- 03 52 54 44.0 55.0 -5.2 -59.9 269 310 11 10 11 11 15 40 J0902+5402 03 53 24 44.7 54.0 -5.2 -61.0 -1 310 11 15 40 11 17 00 =0858+542 03 54 44 44.9 54.2 -5.2 -61.2 79 321 11 15 41 11 17 00 ILTJ0904 03 54 44 44.2 55.2 -5.2 -60.1 -31 321 No stop 11 22 00 --- 03 59 45 44.9 55.7 -5.1 -60.7 269 359 11 17 01 11 22 30 J0902+5402 04 00 15 45.6 54.7 -5.1 -61.9 -1 359 11 22 30 11 23 50 =0858+542 04 01 35 45.8 54.9 -5.0 -62.1 79 370 11 22 31 11 23 50 ILTJ0904 04 01 35 45.1 55.9 -5.1 -60.9 -32 370 No stop 11 28 50 --- 04 06 36 45.8 56.4 -5.0 -61.6 268 408 11 23 51 11 29 20 J0902+5402 04 07 06 46.5 55.4 -4.9 -62.8 -1 408 11 29 20 11 30 40 =0858+542 04 08 26 46.7 55.5 -4.9 -63.0 79 419 11 29 21 11 30 40 J0927+3902 04 08 26 34.8 68.9 -5.3 -49.7 -77 419 No stop 11 33 40 =4C39.25 04 11 27 35.2 69.4 -5.3 -49.9 103 442 11 30 41 11 34 40 J0902+5402 04 12 27 47.2 55.9 -4.9 -63.5 -18 442 11 34 40 11 36 00 =0858+542 04 13 47 47.4 56.0 -4.8 -63.7 62 452 11 34 41 11 36 00 ILTJ0904 04 13 47 46.7 57.2 -4.9 -62.5 -32 452 No stop 11 41 00 --- 04 18 48 47.4 57.7 -4.8 -63.1 268 491 11 36 01 11 41 30 J0902+5402 04 19 18 48.1 56.6 -4.7 -64.4 -2 491 11 41 30 11 42 50 =0858+542 04 20 38 48.3 56.7 -4.7 -64.6 78 501 11 41 31 ---------- Fringe-finder ---------- 11 43 40 J0905+4850 04 21 28 45.6 63.2 -4.8 -59.4 -4 501 11 43 40 11 47 40 =0902+490 04 25 29 46.1 63.7 -4.7 -59.8 236 532 11 43 41 ---------- Going to ILTJ0904 ---------- 11 48 30 J0902+5402 04 26 19 49.1 57.2 -4.6 -65.3 -4 532 11 48 30 11 50 00 =0858+542 04 27 49 49.3 57.4 -4.6 -65.5 86 544 11 48 31 11 50 00 ILTJ0904 04 27 49 48.6 58.6 -4.6 -64.2 -33 544 No stop 11 55 00 --- 04 32 50 49.3 59.1 -4.6 -64.9 267 582 11 50 01 Schedule for EFLSBERG (Code Ef ) 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 24 May 2024 Day 145 --- 11 55 30 J0902+5402 04 33 20 50.0 57.9 -4.5 -66.2 -2 582 11 55 30 11 56 50 =0858+542 04 34 40 50.2 58.0 -4.5 -66.4 78 593 11 55 31 11 56 50 ILTJ0904 04 34 40 49.5 59.3 -4.5 -65.1 -33 593 No stop 12 01 50 --- 04 39 41 50.2 59.7 -4.4 -65.7 267 631 11 56 51 12 02 20 J0902+5402 04 40 11 50.9 58.5 -4.4 -67.1 -3 631 12 02 20 12 03 40 =0858+542 04 41 32 51.1 58.6 -4.4 -67.3 77 642 12 02 21 12 03 40 ILTJ0904 04 41 32 50.5 59.9 -4.4 -66.0 -33 642 No stop 12 08 40 --- 04 46 32 51.2 60.4 -4.3 -66.6 267 680 12 03 41 12 09 10 J0902+5402 04 47 02 51.9 59.1 -4.3 -68.0 -3 680 12 09 10 12 10 30 =0858+542 04 48 23 52.1 59.2 -4.3 -68.2 77 690 12 09 11 12 10 30 J0927+3902 04 48 23 40.8 75.1 -4.7 -52.2 -78 690 No stop 12 13 30 =4C39.25 04 51 23 41.3 75.6 -4.6 -52.3 102 714 12 10 31 12 14 30 J0902+5402 04 52 23 52.6 59.6 -4.2 -68.7 -17 714 12 14 30 12 15 50 =0858+542 04 53 44 52.8 59.7 -4.2 -68.9 63 724 12 14 31 12 15 50 ILTJ0904 04 53 44 52.2 61.1 -4.2 -67.5 -34 724 No stop 12 20 50 --- 04 58 44 52.9 61.5 -4.1 -68.1 266 763 12 15 51 12 21 20 J0902+5402 04 59 14 53.5 60.2 -4.1 -69.7 -3 763 12 21 20 12 22 40 =0858+542 05 00 35 53.7 60.3 -4.1 -69.8 77 773 12 21 21 12 22 40 ILTJ0904 05 00 35 53.1 61.7 -4.1 -68.3 -34 773 No stop 12 27 40 --- 05 05 35 53.8 62.2 -4.0 -69.0 266 812 12 22 41 12 28 10 J0902+5402 05 06 06 54.5 60.8 -4.0 -70.6 -4 812 12 28 10 12 29 30 =0858+542 05 07 26 54.7 60.9 -3.9 -70.7 76 822 12 28 11 12 29 30 ILTJ0904 05 07 26 54.1 62.3 -4.0 -69.2 -34 822 No stop 12 34 30 --- 05 12 27 54.8 62.8 -3.9 -69.8 266 861 12 29 31 12 35 00 J0902+5402 05 12 57 55.4 61.4 -3.9 -71.5 -4 861 12 35 00 12 36 20 =0858+542 05 14 17 55.6 61.5 -3.8 -71.7 76 871 12 35 01 12 36 20 ILTJ0904 05 14 17 55.1 63.0 -3.9 -70.1 -34 871 No stop 12 41 20 --- 05 19 18 55.8 63.4 -3.8 -70.7 266 909 12 36 21 12 41 50 J0902+5402 05 19 48 56.4 61.9 -3.7 -72.4 -4 909 12 41 50 12 43 10 =0858+542 05 21 08 56.6 62.0 -3.7 -72.6 76 920 12 41 51 Schedule for EFLSBERG (Code Ef ) 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 24 May 2024 Day 145 --- 12 43 10 J0927+3902 05 21 08 45.9 80.4 -4.1 -53.7 -84 920 No stop 12 46 10 =4C39.25 05 24 09 46.4 80.9 -4.1 -53.8 96 943 12 43 11 12 47 10 J0902+5402 05 25 09 57.2 62.3 -3.6 -73.1 -24 943 12 47 10 12 48 30 =0858+542 05 26 29 57.3 62.4 -3.6 -73.3 56 953 12 47 11 12 48 30 ILTJ0904 05 26 29 56.8 64.0 -3.7 -71.6 -35 953 No stop 12 53 30 --- 05 31 30 57.5 64.5 -3.6 -72.3 265 992 12 48 31 12 54 00 J0902+5402 05 32 00 58.1 62.9 -3.5 -74.1 -5 992 12 54 00 12 55 20 =0858+542 05 33 20 58.3 63.0 -3.5 -74.3 75 1002 12 54 01 12 55 20 ILTJ0904 05 33 20 57.8 64.6 -3.5 -72.5 -35 1002 No stop 13 00 20 --- 05 38 21 58.5 65.1 -3.5 -73.1 265 1041 12 55 21 13 00 50 J0902+5402 05 38 51 59.1 63.4 -3.4 -75.0 -5 1041 13 00 50 13 02 10 =0858+542 05 40 11 59.3 63.5 -3.4 -75.2 75 1051 13 00 51 13 02 10 ILTJ0904 05 40 11 58.8 65.2 -3.4 -73.4 -36 1051 No stop 13 07 10 --- 05 45 12 59.5 65.6 -3.3 -74.0 264 1090 13 02 11 13 07 40 J0902+5402 05 45 42 60.1 63.9 -3.3 -76.0 -6 1090 13 07 40 13 09 00 =0858+542 05 47 02 60.3 64.0 -3.3 -76.2 74 1100 13 07 41 13 09 00 ILTJ0904 05 47 02 59.7 65.8 -3.3 -74.3 -36 1100 No stop 13 14 00 --- 05 52 03 60.5 66.2 -3.2 -74.9 264 1139 13 09 01 13 14 30 J0902+5402 05 52 33 61.0 64.4 -3.2 -76.9 -6 1139 13 14 30 13 15 50 =0858+542 05 53 53 61.2 64.5 -3.2 -77.1 74 1149 13 14 31 13 15 50 J0927+3902 05 53 53 51.1 86.0 -3.6 -54.6 -91 1149 No stop 13 18 50 =4C39.25 05 56 54 51.6 86.5 -3.5 -54.7 89 1172 13 15 51 13 19 50 J0902+5402 05 57 54 61.8 64.7 -3.1 -77.7 -31 1172 13 19 50 13 21 10 =0858+542 05 59 14 62.0 64.8 -3.1 -77.9 49 1183 13 19 51 13 21 10 ILTJ0904 05 59 14 61.5 66.7 -3.1 -75.8 -37 1183 No stop 13 26 10 --- 06 04 15 62.3 67.1 -3.0 -76.5 263 1221 13 21 11 13 26 40 J0902+5402 06 04 45 62.8 65.2 -3.0 -78.7 -7 1221 13 26 40 13 28 00 =0858+542 06 06 05 63.0 65.3 -3.0 -78.9 73 1232 13 26 41 13 28 00 ILTJ0904 06 06 05 62.5 67.3 -3.0 -76.8 -37 1232 No stop 13 33 00 --- 06 11 06 63.3 67.6 -2.9 -77.4 263 1270 13 28 01 Schedule for EFLSBERG (Code Ef ) 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 24 May 2024 Day 145 --- 13 33 30 J0902+5402 06 11 36 63.8 65.6 -2.9 -79.7 -7 1270 13 33 30 13 34 50 =0858+542 06 12 57 64.0 65.7 -2.9 -79.9 73 1280 13 33 31 13 34 50 ILTJ0904 06 12 57 63.5 67.8 -2.9 -77.7 -38 1280 No stop 13 39 50 --- 06 17 57 64.3 68.1 -2.8 -78.3 262 1319 13 34 51 13 40 20 J0902+5402 06 18 27 64.8 66.0 -2.8 -80.7 -8 1319 13 40 20 13 41 40 =0858+542 06 19 48 65.0 66.1 -2.7 -80.9 72 1329 13 40 21 13 41 40 ILTJ0904 06 19 48 64.5 68.2 -2.8 -78.6 -38 1329 No stop 13 46 40 --- 06 24 48 65.3 68.6 -2.7 -79.3 262 1368 13 41 41 13 47 10 J0902+5402 06 25 19 65.8 66.3 -2.6 -81.8 -8 1368 13 47 10 13 48 30 =0858+542 06 26 39 66.0 66.4 -2.6 -82.0 72 1378 13 47 11 13 48 30 J0927+3902 06 26 39 56.3 92.2 -3.0 -54.8 -102 1378 No stop 13 51 30 =4C39.25 06 29 39 56.8 92.8 -3.0 -54.7 78 1402 13 48 31 13 52 30 J0902+5402 06 30 39 66.6 66.6 -2.6 -82.6 -42 1402 13 52 30 13 53 50 =0858+542 06 32 00 66.8 66.7 -2.5 -82.8 38 1412 13 52 31 13 53 50 ILTJ0904 06 32 00 66.3 69.1 -2.6 -80.3 -39 1412 No stop 13 58 50 --- 06 37 00 67.1 69.4 -2.5 -81.0 261 1451 13 53 51 13 59 20 J0902+5402 06 37 31 67.6 66.9 -2.4 -83.7 -9 1451 13 59 20 14 00 40 =0858+542 06 38 51 67.8 67.0 -2.4 -83.9 71 1461 13 59 21 14 00 40 ILTJ0904 06 38 51 67.4 69.5 -2.5 -81.3 -40 1461 No stop 14 05 40 --- 06 43 52 68.1 69.8 -2.4 -82.0 260 1499 14 00 41 14 06 10 J0902+5402 06 44 22 68.6 67.2 -2.3 -84.9 -10 1499 14 06 10 14 07 30 =0858+542 06 45 42 68.8 67.2 -2.3 -85.1 70 1510 14 06 11 14 07 30 ILTJ0904 06 45 42 68.4 69.9 -2.3 -82.3 -40 1510 No stop 14 12 30 --- 06 50 43 69.1 70.1 -2.3 -83.0 260 1548 14 07 31 14 13 00 J0902+5402 06 51 13 69.6 67.4 -2.2 -86.0 -11 1548 14 13 00 14 14 20 =0858+542 06 52 33 69.8 67.5 -2.2 -86.3 69 1559 14 13 01 14 14 20 ILTJ0904 06 52 33 69.4 70.2 -2.2 -83.3 -41 1559 No stop 14 19 20 --- 06 57 34 70.2 70.5 -2.1 -84.1 259 1597 14 14 21 14 19 50 J0902+5402 06 58 04 70.6 67.6 -2.1 -87.3 -11 1597 14 19 50 14 21 10 =0858+542 06 59 24 70.8 67.6 -2.1 -87.5 69 1608 14 19 51 Schedule for EFLSBERG (Code Ef ) 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 24 May 2024 Day 145 --- 14 21 10 J0927+3902 06 59 24 61.5 99.4 -2.5 -53.7 -116 1608 No stop 14 24 10 =4C39.25 07 02 25 61.9 100.1 -2.4 -53.6 64 1631 14 21 11 14 25 10 J0902+5402 07 03 25 71.4 67.7 -2.0 -88.3 -57 1631 14 25 10 14 26 30 =0858+542 07 04 45 71.6 67.7 -2.0 -88.5 23 1641 14 25 11 14 26 30 ILTJ0904 07 04 45 71.2 70.8 -2.0 -85.2 -42 1641 No stop 14 31 30 --- 07 09 46 72.0 71.0 -1.9 -86.1 258 1680 14 26 31 14 32 00 J0902+5402 07 10 16 72.4 67.7 -1.9 -89.6 -13 1680 14 32 00 14 33 20 =0858+542 07 11 36 72.6 67.7 -1.9 -89.8 67 1690 14 32 01 14 33 20 ILTJ0904 07 11 36 72.3 71.0 -1.9 -86.4 -43 1690 No stop 14 38 20 --- 07 16 37 73.0 71.2 -1.8 -87.2 257 1729 14 33 21 14 38 50 J0902+5402 07 17 07 73.4 67.7 -1.8 -91.0 -14 1729 14 38 50 14 40 10 =0858+542 07 18 27 73.6 67.7 -1.8 -91.3 66 1739 14 38 51 14 40 10 ILTJ0904 07 18 27 73.3 71.2 -1.8 -87.6 -44 1739 No stop 14 45 10 --- 07 23 28 74.1 71.3 -1.7 -88.5 256 1778 14 40 11 14 45 40 J0902+5402 07 23 58 74.4 67.6 -1.7 -92.5 -15 1778 14 45 40 14 47 00 =0858+542 07 25 18 74.6 67.6 -1.6 -92.8 65 1788 14 45 41 14 47 00 ILTJ0904 07 25 18 74.3 71.3 -1.7 -88.8 -45 1788 No stop 14 52 00 --- 07 30 19 75.1 71.3 -1.6 -89.8 255 1827 14 47 01 14 52 30 J0902+5402 07 30 49 75.4 67.4 -1.6 -94.1 -16 1827 14 52 30 14 53 50 =0858+542 07 32 10 75.6 67.3 -1.5 -94.4 64 1837 14 52 31 14 53 50 J0927+3902 07 32 10 66.5 108.3 -1.9 -50.9 -139 1837 No stop 14 56 50 =4C39.25 07 35 10 67.0 109.2 -1.9 -50.5 41 1860 14 53 51 14 59 10 ILTJ0904 07 37 30 76.2 71.3 -1.5 -91.3 10 1860 14 59 10 15 04 10 --- 07 42 31 76.9 71.2 -1.4 -92.4 300 1899 14 59 11 15 04 40 J0902+5402 07 43 01 77.2 66.6 -1.4 -97.3 -18 1899 15 04 40 15 06 00 =0858+542 07 44 22 77.4 66.5 -1.3 -97.6 62 1909 15 04 41 15 06 00 ILTJ0904 07 44 22 77.2 71.1 -1.4 -92.8 -48 1909 No stop 15 11 00 --- 07 49 22 78.0 70.9 -1.3 -94.0 252 1948 15 06 01 15 11 40 J0902+5402 07 50 02 78.2 65.9 -1.2 -99.4 -9 1948 15 11 40 15 13 00 =0858+542 07 51 23 78.4 65.8 -1.2 -99.8 71 1958 15 11 41 Schedule for EFLSBERG (Code Ef ) 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 ---------------------------------------------------------------------------------------- --- Fri 24 May 2024 Day 145 --- 15 13 00 ILTJ0904 07 51 23 78.3 70.8 -1.2 -94.5 -49 1958 No stop 15 17 30 --- 07 55 53 78.9 70.5 -1.2 -95.7 221 1993 15 13 01 15 17 50 J0902+5402 07 56 13 79.1 65.1 -1.1 -101.4 -31 1993 15 17 50 15 19 10 =0858+542 07 57 34 79.3 64.9 -1.1 -101.9 49 2003 15 17 51 ---------- Fringe-finder ---------- 15 20 00 J0905+4850 07 58 24 78.8 92.4 -1.1 -74.5 -56 2003 15 20 00 15 24 00 =0902+490 08 02 24 79.4 93.3 -1.1 -74.3 184 2034 15 20 01 ---------- test pulsar ---------- 15 27 00 B0950+08_D 08 05 25 41.7 142.6 -1.8 -22.9 -1 2034 15 27 00 15 30 00 --- 08 08 25 42.0 143.5 -1.8 -22.4 179 2057 15 27 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 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: ef18cm 18cm Prime focus receiver, standard LO ****** Only 128.00 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 1 Station: EFLSBERG 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= 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 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 C4 A2 C4 A2 C4 A2 C4 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= 116.49 116.49 116.49 116.49 180.49 180.49 180.49 180.49 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) * ILTJ0904 09 00 30.402581 * 09 04 06.540000 09 05 50.877810 0.00 53 15 10.14434 * 53 03 14.60000 52 57 41.59145 0.00 From catalog imbedded in main SCHED input file. * B0950+08_D 09 50 30.540984 * 09 53 09.300000 09 54 26.268162 0.00 08 09 45.10179 * 07 55 35.70000 07 48 44.25845 0.00 From catalog imbedded in main SCHED input file. 0858+542 08 58 40.320528 * 09 02 19.287471 09 04 04.959958 0.24 * J0902+5402 54 14 47.23572 * 54 02 57.25641 53 57 27.12114 0.16 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 124 observations. 0902+490 09 02 00.374037 * 09 05 27.463885 09 07 07.491669 0.15 * J0905+4850 49 02 49.85961 * 48 50 49.96508 48 45 13.94400 0.15 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 114 observations. 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 33.888179 0.31 * J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 11.96455 0.16 0923+392 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0927+39 GSFC 2016a X/S astro solution, 250526 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 ILTJ0904 sess224.L1024 1 2 3 4 5 6 7 8 13 2.825 203.322 B0950+08_D sess224.L1024 1 2 3 4 5 6 7 8 13 0.050 3.522 J0902+5402 sess224.L1024 1 2 3 4 5 6 7 8 13 0.983 66.680 J0905+4850 sess224.L1024 1 2 3 4 5 6 7 8 13 0.200 14.219 J0927+3902 sess224.L1024 1 2 3 4 5 6 7 8 13 0.400 17.045 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) ILTJ0904 64.3 B0950+08_D 84.2 J0902+5402 64.0 J0905+4850 64.6 J0927+3902 69.7 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