COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: 18cm global VLBI observations of the starburst galaxy Arp 220 Exp. Code: gv028c Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Eskil Varenius Address: Chalmers University of Technology Onsala Space Observatory 439 92 Onsala Sweden Phone: +46706755341 EMAIL: eskil.varenius@chalmers.se Fax: Phone during observation: +46706755341 Observing mode: vlbi Notes: VLA please use all 27 stations at 18cm. Phase calibrator: J1532+2344 Fringe finder: J1516+1932 Pol. cal.: OQ208 COVER LETTER: This is one of three .key files to observe Arp 220 at 18cm, 6cm and 3.6cm during EVN session I 2023. Arp 220 has two nuclei 1 arcsec apart; we aim to point right in the middle of them, to get both at the same time. OPERATOR NOTES: VLA27: Please use all 27 stations at 18cm. Schedule for JODRELL1 (Code Jb ) Page 2 18cm global VLBI observations of the starburst galaxy Arp 220 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 12 Mar 2023 Day 71 --- Next scan frequencies: 1626.00 1626.00 1626.00 1626.00 1690.00 1690.00 1690.00 1690.00 Next BBC frequencies: 646.00 646.00 646.00 646.00 582.00 582.00 582.00 582.00 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 22 30 00 J1516+1932 09 42 01 19.0 82.7 -5.6 -39.0 0 0 22 30 00 22 35 00 =1514+197 09 47 01 19.8 83.7 -5.5 -39.1 300 39 22 30 01 22 37 23 OQ208 09 49 25 37.3 91.3 -4.3 -42.8 0 39 22 37 23 22 42 23 --- 09 54 26 38.0 92.3 -4.2 -42.8 300 77 22 37 24 22 44 35 J1532+2344 09 56 37 22.1 79.6 -5.6 -40.0 0 77 22 44 35 22 46 05 =1530+239 09 58 08 22.3 79.9 -5.6 -40.0 90 89 22 44 36 22 46 31 ARP220 09 58 34 21.9 79.7 -5.6 -39.9 11 89 22 46 31 22 57 01 --- 10 09 06 23.4 81.7 -5.4 -40.2 630 170 22 46 32 22 57 28 J1532+2344 10 09 33 24.0 82.1 -5.4 -40.3 11 170 22 57 28 22 58 58 =1530+239 10 11 03 24.2 82.4 -5.4 -40.4 90 182 22 57 29 22 59 24 ARP220 10 11 30 23.8 82.2 -5.4 -40.3 11 182 22 59 24 23 09 54 --- 10 22 01 25.3 84.2 -5.2 -40.5 630 263 22 59 25 23 10 21 J1532+2344 10 22 28 25.9 84.6 -5.2 -40.6 11 263 23 10 21 23 11 51 =1530+239 10 23 59 26.1 84.8 -5.2 -40.6 90 274 23 10 22 23 12 18 ARP220 10 24 25 25.7 84.7 -5.2 -40.5 11 274 23 12 18 23 22 48 --- 10 34 57 27.3 86.7 -5.0 -40.6 630 356 23 12 19 23 23 15 J1532+2344 10 35 24 27.8 87.1 -5.0 -40.7 11 356 23 23 15 23 24 45 =1530+239 10 36 54 28.1 87.4 -4.9 -40.7 90 367 23 23 16 23 25 11 ARP220 10 37 21 27.6 87.2 -5.0 -40.7 11 367 23 25 11 23 35 41 --- 10 47 52 29.2 89.3 -4.8 -40.7 630 448 23 25 12 23 36 08 J1532+2344 10 48 19 29.8 89.6 -4.8 -40.8 11 448 23 36 08 23 37 38 =1530+239 10 49 50 30.0 89.9 -4.7 -40.8 90 460 23 36 09 23 39 54 OQ208 10 52 06 46.5 105.0 -3.3 -41.0 0 460 23 39 54 23 44 54 --- 10 57 07 47.3 106.3 -3.2 -40.8 300 499 23 39 55 23 47 04 J1532+2344 10 59 18 31.4 91.8 -4.6 -40.8 0 499 23 47 04 23 48 34 =1530+239 11 00 48 31.6 92.1 -4.5 -40.8 90 510 23 47 05 23 49 01 ARP220 11 01 14 31.2 92.0 -4.6 -40.7 11 510 23 49 01 23 59 31 --- 11 11 46 32.8 94.1 -4.4 -40.6 630 591 23 49 02 Schedule for JODRELL1 (Code Jb ) Page 3 18cm global VLBI observations of the starburst galaxy Arp 220 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: Sun 12 Mar 2023 Day 71 -- Stop: Mon 13 Mar 2023 Day 72 --- 23 59 58 J1532+2344 11 12 13 33.3 94.5 -4.4 -40.6 11 591 23 59 58 00 01 28 =1530+239 11 13 43 33.6 94.8 -4.3 -40.6 90 603 23 59 59 00 01 54 ARP220 11 14 10 33.1 94.6 -4.4 -40.6 11 603 00 01 54 00 12 24 --- 11 24 41 34.7 96.8 -4.2 -40.4 630 684 00 01 55 00 12 51 J1532+2344 11 25 08 35.3 97.2 -4.1 -40.4 11 684 00 12 51 00 14 21 =1530+239 11 26 39 35.5 97.5 -4.1 -40.4 90 696 00 12 52 00 14 47 ARP220 11 27 05 35.1 97.3 -4.1 -40.3 11 696 00 14 47 00 25 17 --- 11 37 37 36.6 99.6 -4.0 -40.0 630 777 00 14 48 00 25 44 J1532+2344 11 38 04 37.2 100.0 -3.9 -40.0 11 777 00 25 44 00 27 14 =1530+239 11 39 34 37.4 100.3 -3.9 -40.0 90 788 00 25 45 00 27 41 ARP220 11 40 00 37.0 100.2 -3.9 -39.9 11 788 00 27 41 00 38 11 --- 11 50 32 38.5 102.5 -3.8 -39.6 630 870 00 27 42 00 38 37 J1532+2344 11 50 59 39.1 102.9 -3.7 -39.6 11 870 00 38 37 00 40 07 =1530+239 11 52 29 39.3 103.2 -3.7 -39.5 90 881 00 38 38 00 42 18 OQ208 11 54 40 55.1 122.2 -2.2 -35.1 0 881 00 42 18 00 47 18 --- 11 59 41 55.7 123.8 -2.1 -34.4 300 920 00 42 19 00 49 23 J1532+2344 12 01 46 40.6 105.4 -3.5 -39.0 0 920 00 49 23 00 50 53 =1530+239 12 03 17 40.9 105.8 -3.5 -39.0 90 931 00 49 24 00 51 19 ARP220 12 03 43 40.4 105.5 -3.5 -38.9 11 931 00 51 19 01 01 49 --- 12 14 15 41.9 108.0 -3.4 -38.3 630 1013 00 51 20 01 02 16 J1532+2344 12 14 41 42.5 108.5 -3.3 -38.3 11 1013 01 02 16 01 03 46 =1530+239 12 16 12 42.7 108.9 -3.3 -38.2 90 1024 01 02 17 01 04 12 ARP220 12 16 38 42.3 108.6 -3.3 -38.2 11 1024 01 04 12 01 14 42 --- 12 27 10 43.8 111.2 -3.1 -37.4 630 1105 01 04 13 01 15 09 J1532+2344 12 27 36 44.3 111.7 -3.1 -37.4 11 1105 01 15 09 01 16 39 =1530+239 12 29 07 44.5 112.1 -3.1 -37.3 90 1117 01 15 10 01 17 05 ARP220 12 29 33 44.1 111.8 -3.1 -37.3 11 1117 01 17 05 01 27 35 --- 12 40 05 45.5 114.6 -2.9 -36.4 630 1198 01 17 06 01 28 01 J1532+2344 12 40 31 46.1 115.1 -2.9 -36.3 11 1198 01 28 01 01 29 31 =1530+239 12 42 01 46.3 115.5 -2.9 -36.2 90 1210 01 28 02 Schedule for JODRELL1 (Code Jb ) Page 4 18cm global VLBI observations of the starburst galaxy Arp 220 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 13 Mar 2023 Day 72 --- 01 29 58 ARP220 12 42 28 45.9 115.2 -2.9 -36.2 11 1210 01 29 58 01 40 28 --- 12 52 59 47.3 118.0 -2.7 -35.1 630 1291 01 29 59 01 40 54 J1532+2344 12 53 26 47.8 118.6 -2.7 -35.0 12 1291 01 40 54 01 42 24 =1530+239 12 54 57 48.0 119.0 -2.6 -34.9 90 1302 01 40 55 01 44 25 OQ208 12 56 57 61.9 145.2 -1.2 -22.8 0 1302 01 44 25 01 49 25 --- 13 01 58 62.3 147.4 -1.1 -21.5 300 1341 01 44 26 01 51 24 J1532+2344 13 03 58 49.2 121.6 -2.5 -33.8 0 1341 01 51 24 01 52 54 =1530+239 13 05 28 49.4 122.0 -2.5 -33.6 90 1353 01 51 25 01 53 20 ARP220 13 05 54 48.9 121.7 -2.5 -33.7 11 1353 01 53 20 02 03 50 --- 13 16 26 50.3 124.8 -2.3 -32.4 630 1434 01 53 21 02 04 18 J1532+2344 13 16 54 50.8 125.4 -2.3 -32.2 13 1434 02 04 18 02 05 48 =1530+239 13 18 24 51.0 125.9 -2.3 -32.0 90 1445 02 04 19 02 06 15 ARP220 13 18 51 50.6 125.6 -2.3 -32.0 12 1445 02 06 15 02 16 45 --- 13 29 23 51.8 128.9 -2.1 -30.5 630 1527 02 06 16 02 17 14 J1532+2344 13 29 51 52.3 129.5 -2.1 -30.3 13 1527 02 17 14 02 18 44 =1530+239 13 31 22 52.5 130.0 -2.0 -30.0 90 1538 02 17 15 02 19 11 ARP220 13 31 49 52.1 129.6 -2.1 -30.2 13 1538 02 19 11 02 29 41 --- 13 42 21 53.3 133.1 -1.9 -28.4 630 1619 02 19 12 02 30 10 J1532+2344 13 42 50 53.8 133.8 -1.8 -28.1 14 1619 02 30 10 02 31 40 =1530+239 13 44 20 53.9 134.4 -1.8 -27.9 90 1631 02 30 11 02 32 08 ARP220 13 44 48 53.5 134.0 -1.9 -28.0 13 1631 02 32 08 02 42 38 --- 13 55 20 54.6 137.6 -1.7 -26.1 630 1712 02 32 09 02 43 08 J1532+2344 13 55 50 55.1 138.4 -1.6 -25.7 14 1712 02 43 08 02 44 38 =1530+239 13 57 20 55.3 138.9 -1.6 -25.4 90 1724 02 43 09 02 47 21 OQ208 14 00 04 65.1 175.8 -0.1 -2.8 0 1724 02 47 21 02 52 21 --- 14 05 04 65.1 178.4 -0.0 -1.1 300 1762 02 47 22 02 54 59 J1532+2344 14 07 43 56.2 142.8 -1.4 -23.3 0 1762 02 54 59 02 56 29 =1530+239 14 09 13 56.4 143.4 -1.4 -22.9 90 1774 02 55 00 02 56 58 ARP220 14 09 42 56.0 142.9 -1.4 -23.2 13 1774 02 56 58 03 07 28 --- 14 20 14 56.9 146.9 -1.3 -20.8 630 1855 02 56 59 Schedule for JODRELL1 (Code Jb ) Page 5 18cm global VLBI observations of the starburst galaxy Arp 220 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 13 Mar 2023 Day 72 --- 03 07 59 J1532+2344 14 20 46 57.4 147.9 -1.2 -20.3 14 1855 03 07 59 03 09 29 =1530+239 14 22 16 57.5 148.5 -1.2 -20.0 90 1867 03 08 00 03 09 59 ARP220 14 22 45 57.1 147.9 -1.2 -20.3 13 1867 03 09 59 03 20 29 --- 14 33 17 57.9 152.2 -1.0 -17.7 630 1948 03 10 00 03 21 01 J1532+2344 14 33 49 58.3 153.2 -1.0 -17.1 14 1948 03 21 01 03 22 31 =1530+239 14 35 19 58.4 153.8 -1.0 -16.8 90 1959 03 21 02 03 23 01 ARP220 14 35 49 58.1 153.2 -1.0 -17.1 14 1959 03 23 01 03 33 31 --- 14 46 21 58.7 157.7 -0.8 -14.3 630 2040 03 23 02 03 34 03 J1532+2344 14 46 53 59.1 158.7 -0.8 -13.7 14 2040 03 34 03 03 35 33 =1530+239 14 48 24 59.2 159.4 -0.8 -13.3 90 2052 03 34 04 03 36 03 ARP220 14 48 54 58.9 158.8 -0.8 -13.7 14 2052 03 36 03 03 46 33 --- 14 59 26 59.4 163.4 -0.6 -10.8 630 2133 03 36 04 03 47 06 J1532+2344 14 59 59 59.7 164.5 -0.6 -10.1 14 2133 03 47 06 03 48 36 =1530+239 15 01 29 59.8 165.2 -0.5 -9.6 90 2145 03 47 07 03 51 44 OQ208 15 04 37 63.0 208.3 0.9 18.8 0 2145 03 51 44 03 56 44 --- 15 09 38 62.6 210.6 1.0 20.2 300 2183 03 51 45 03 59 41 J1532+2344 15 12 35 60.1 170.2 -0.4 -6.4 0 2183 03 59 41 04 01 11 =1530+239 15 14 06 60.2 170.9 -0.3 -5.9 90 2195 03 59 42 04 01 42 ARP220 15 14 37 59.9 170.2 -0.4 -6.4 13 2195 04 01 42 04 12 12 --- 15 25 08 60.1 175.0 -0.2 -3.3 630 2276 04 01 43 04 12 44 J1532+2344 15 25 41 60.4 176.2 -0.1 -2.5 14 2276 04 12 44 04 14 14 =1530+239 15 27 12 60.4 176.9 -0.1 -2.0 90 2288 04 12 45 04 14 46 ARP220 15 27 43 60.1 176.2 -0.1 -2.5 13 2288 04 14 46 04 25 16 --- 15 38 14 60.2 181.0 0.0 0.7 630 2369 04 14 47 04 25 48 J1532+2344 15 38 47 60.4 182.3 0.1 1.5 14 2369 04 25 48 04 27 18 =1530+239 15 40 18 60.4 183.0 0.1 2.0 90 2381 04 25 49 04 27 49 ARP220 15 40 49 60.2 182.2 0.1 1.5 13 2381 04 27 49 04 38 19 --- 15 51 20 60.0 187.1 0.3 4.6 630 2462 04 27 50 04 38 52 J1532+2344 15 51 53 60.2 188.4 0.3 5.5 13 2462 04 38 52 04 40 22 =1530+239 15 53 23 60.2 189.1 0.3 5.9 90 2473 04 38 53 Schedule for JODRELL1 (Code Jb ) Page 6 18cm global VLBI observations of the starburst galaxy Arp 220 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 13 Mar 2023 Day 72 --- 04 40 53 ARP220 15 53 55 60.0 188.3 0.3 5.4 13 2473 04 40 53 04 51 23 --- 16 04 26 59.7 193.0 0.5 8.5 630 2554 04 40 54 04 51 55 J1532+2344 16 04 59 59.8 194.3 0.5 9.3 13 2554 04 51 55 04 53 25 =1530+239 16 06 29 59.8 195.0 0.5 9.7 90 2566 04 51 56 04 56 16 OQ208 16 09 20 56.6 233.9 2.0 33.3 0 2566 04 56 16 04 57 16 --- 16 10 20 56.5 234.2 2.0 33.5 60 2574 04 56 17 04 57 16 OQ208 16 10 20 56.5 234.2 2.0 33.5 -6 2574 No stop 05 01 16 --- 16 14 21 56.0 235.5 2.1 34.1 234 2605 04 57 17 05 03 55 J1532+2344 16 17 01 59.3 199.7 0.7 12.7 0 2605 05 03 55 05 04 55 =1530+239 16 18 01 59.3 200.1 0.7 13.0 60 2612 05 03 56 05 04 55 J1532+2344 16 18 01 59.3 200.1 0.7 13.0 -6 2612 No stop 05 05 25 =1530+239 16 18 31 59.2 200.3 0.7 13.1 24 2616 05 04 56 05 05 56 ARP220 16 19 02 59.1 199.5 0.7 12.6 12 2616 05 05 56 05 16 26 --- 16 29 33 58.5 204.0 0.9 15.4 630 2697 05 05 57 05 16 58 J1532+2344 16 30 05 58.6 205.3 0.9 16.2 13 2697 05 16 58 05 17 58 =1530+239 16 31 05 58.5 205.7 1.0 16.5 60 2705 05 16 59 05 17 58 J1532+2344 16 31 05 58.5 205.7 1.0 16.5 -6 2705 No stop 05 18 28 =1530+239 16 31 35 58.5 205.9 1.0 16.6 24 2709 05 17 59 05 18 58 ARP220 16 32 06 58.3 205.1 0.9 16.1 12 2709 05 18 58 05 29 28 --- 16 42 38 57.6 209.4 1.1 18.7 630 2790 05 18 59 05 30 00 J1532+2344 16 43 09 57.6 210.7 1.2 19.5 12 2790 05 30 00 05 31 00 =1530+239 16 44 09 57.6 211.1 1.2 19.7 60 2798 05 30 01 05 31 00 J1532+2344 16 44 09 57.6 211.1 1.2 19.7 -6 2798 No stop 05 31 30 =1530+239 16 44 39 57.5 211.3 1.2 19.8 24 2802 05 31 01 05 32 00 ARP220 16 45 10 57.4 210.5 1.2 19.3 12 2802 05 32 00 05 42 30 --- 16 55 41 56.6 214.6 1.3 21.7 630 2883 05 32 01 05 43 01 J1532+2344 16 56 12 56.6 215.8 1.4 22.5 12 2883 05 43 01 05 44 01 =1530+239 16 57 13 56.5 216.2 1.4 22.7 60 2891 05 43 02 05 44 01 J1532+2344 16 57 13 56.5 216.2 1.4 22.7 -6 2891 No stop 05 44 31 =1530+239 16 57 43 56.4 216.4 1.4 22.8 24 2895 05 44 02 Schedule for JODRELL1 (Code Jb ) Page 7 18cm global VLBI observations of the starburst galaxy Arp 220 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 13 Mar 2023 Day 72 --- 05 45 01 ARP220 16 58 13 56.4 215.6 1.4 22.3 12 2895 05 45 01 05 55 31 --- 17 08 44 55.4 219.5 1.5 24.5 630 2976 05 45 02 05 56 01 J1532+2344 17 09 15 55.4 220.7 1.6 25.2 12 2976 05 56 01 05 57 31 =1530+239 17 10 45 55.2 221.2 1.6 25.5 90 2987 05 56 02 05 59 51 OQ208 17 13 05 48.1 252.3 3.1 40.4 0 2987 05 59 51 06 00 51 --- 17 14 05 48.0 252.5 3.1 40.4 60 2995 05 59 52 06 00 51 OQ208 17 14 05 48.0 252.5 3.1 40.4 -6 2995 No stop 06 04 51 --- 17 18 06 47.4 253.5 3.2 40.7 234 3026 06 00 52 06 07 02 J1532+2344 17 20 18 54.2 224.6 1.8 27.3 0 3026 06 07 02 06 08 02 =1530+239 17 21 18 54.1 225.0 1.8 27.5 60 3034 06 07 03 06 08 02 J1532+2344 17 21 18 54.1 225.0 1.8 27.5 -6 3034 No stop 06 08 32 =1530+239 17 21 48 54.1 225.2 1.8 27.6 24 3038 06 08 03 06 09 01 ARP220 17 22 17 54.1 224.4 1.8 27.1 12 3038 06 09 01 06 19 31 --- 17 32 49 52.9 228.0 1.9 29.0 630 3119 06 09 02 06 20 01 J1532+2344 17 33 19 52.8 229.0 2.0 29.6 12 3119 06 20 01 06 21 01 =1530+239 17 34 19 52.7 229.4 2.0 29.7 60 3126 06 20 02 06 21 01 J1532+2344 17 34 19 52.7 229.4 2.0 29.7 -6 3126 No stop 06 21 31 =1530+239 17 34 49 52.6 229.5 2.0 29.8 24 3130 06 21 02 06 22 00 ARP220 17 35 18 52.6 228.8 2.0 29.4 12 3130 06 22 00 06 32 30 --- 17 45 50 51.4 232.2 2.2 31.0 630 3211 06 22 01 06 33 00 J1532+2344 17 46 20 51.3 233.2 2.2 31.6 12 3211 06 33 00 06 34 00 =1530+239 17 47 20 51.2 233.5 2.2 31.7 60 3219 06 33 01 06 34 00 J1532+2344 17 47 20 51.2 233.5 2.2 31.7 -6 3219 No stop 06 34 30 =1530+239 17 47 50 51.1 233.7 2.2 31.8 24 3223 06 34 01 06 34 59 ARP220 17 48 19 51.1 233.0 2.2 31.4 12 3223 06 34 59 06 45 29 --- 17 58 51 49.8 236.2 2.4 32.8 630 3304 06 35 00 06 45 58 J1532+2344 17 59 20 49.7 237.2 2.4 33.3 12 3304 06 45 58 06 46 58 =1530+239 18 00 21 49.6 237.5 2.4 33.4 60 3312 06 45 59 06 46 58 J1532+2344 18 00 21 49.6 237.5 2.4 33.4 -6 3312 No stop 06 47 28 =1530+239 18 00 51 49.5 237.6 2.5 33.5 24 3316 06 46 59 Schedule for JODRELL1 (Code Jb ) Page 8 18cm global VLBI observations of the starburst galaxy Arp 220 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 13 Mar 2023 Day 72 --- 06 47 57 ARP220 18 01 19 49.5 236.9 2.4 33.1 11 3316 06 47 57 06 58 27 --- 18 11 51 48.2 240.0 2.6 34.4 630 3397 06 47 58 06 58 56 J1532+2344 18 12 20 48.0 240.9 2.6 34.8 12 3397 06 58 56 07 00 26 =1530+239 18 13 51 47.8 241.3 2.7 35.0 90 3409 06 58 57 07 02 22 OQ208 18 15 47 38.9 266.5 4.1 42.7 0 3409 07 02 22 07 03 22 --- 18 16 47 38.8 266.7 4.1 42.8 60 3416 07 02 23 07 03 22 OQ208 18 16 47 38.8 266.7 4.1 42.8 -6 3416 No stop 07 07 22 --- 18 20 48 38.2 267.5 4.2 42.8 234 3447 07 03 23 07 09 13 J1532+2344 18 22 39 46.7 243.8 2.8 35.9 0 3447 07 09 13 07 10 13 =1530+239 18 23 39 46.5 244.0 2.8 36.0 60 3455 07 09 14 07 10 13 J1532+2344 18 23 39 46.5 244.0 2.8 36.0 -6 3455 No stop 07 10 43 =1530+239 18 24 09 46.5 244.2 2.8 36.0 24 3459 07 10 14 07 11 11 ARP220 18 24 37 46.5 243.5 2.8 35.7 11 3459 07 11 11 07 21 41 --- 18 35 09 45.1 246.3 3.0 36.7 630 3540 07 11 12 07 22 10 J1532+2344 18 35 38 44.9 247.2 3.0 37.0 12 3540 07 22 10 07 23 10 =1530+239 18 36 38 44.8 247.4 3.0 37.1 60 3548 07 22 11 07 23 10 J1532+2344 18 36 38 44.8 247.4 3.0 37.1 -6 3548 No stop 07 23 40 =1530+239 18 37 08 44.7 247.6 3.1 37.2 24 3552 07 23 11 07 24 08 ARP220 18 37 36 44.7 246.9 3.0 36.9 11 3552 07 24 08 07 34 38 --- 18 48 08 43.3 249.6 3.2 37.7 630 3633 07 24 09 07 35 06 J1532+2344 18 48 36 43.1 250.5 3.2 38.0 12 3633 07 35 06 07 36 06 =1530+239 18 49 37 43.0 250.7 3.3 38.1 60 3640 07 35 07 07 36 06 J1532+2344 18 49 37 43.0 250.7 3.3 38.1 -6 3640 No stop 07 36 36 =1530+239 18 50 07 42.9 250.8 3.3 38.1 24 3644 07 36 07 07 37 04 ARP220 18 50 34 42.9 250.2 3.2 37.9 11 3644 07 37 04 07 47 34 --- 19 01 06 41.4 252.8 3.4 38.5 630 3725 07 37 05 07 48 02 J1532+2344 19 01 35 41.2 253.6 3.5 38.8 12 3725 07 48 02 07 49 02 =1530+239 19 02 35 41.1 253.8 3.5 38.9 60 3733 07 48 03 07 49 02 J1532+2344 19 02 35 41.1 253.8 3.5 38.9 -6 3733 No stop 07 49 32 =1530+239 19 03 05 41.0 254.0 3.5 38.9 24 3737 07 49 03 Schedule for JODRELL1 (Code Jb ) Page 9 18cm global VLBI observations of the starburst galaxy Arp 220 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 13 Mar 2023 Day 72 --- 07 50 00 ARP220 19 03 33 41.1 253.4 3.5 38.7 11 3737 07 50 00 08 00 30 --- 19 14 04 39.6 255.8 3.6 39.2 630 3818 07 50 01 08 00 58 J1532+2344 19 14 33 39.4 256.6 3.7 39.5 12 3818 08 00 58 08 02 28 =1530+239 19 16 03 39.2 257.0 3.7 39.5 90 3830 08 00 59 08 04 10 OQ208 19 17 45 29.7 278.6 5.2 42.2 0 3830 08 04 10 08 05 10 --- 19 18 45 29.5 278.8 5.2 42.2 60 3838 08 04 11 08 05 10 OQ208 19 18 45 29.5 278.8 5.2 42.2 -6 3838 No stop 08 09 10 --- 19 22 46 28.9 279.6 5.2 42.1 234 3868 08 05 11 08 10 49 J1532+2344 19 24 25 37.9 258.9 3.8 39.9 0 3868 08 10 49 08 11 49 =1530+239 19 25 25 37.8 259.1 3.9 39.9 60 3876 08 10 50 08 11 49 J1532+2344 19 25 25 37.8 259.1 3.9 39.9 -6 3876 No stop 08 12 19 =1530+239 19 25 55 37.7 259.2 3.9 39.9 24 3880 08 11 50 08 12 46 ARP220 19 26 23 37.8 258.6 3.8 39.7 11 3880 08 12 46 08 23 16 --- 19 36 54 36.2 260.9 4.0 40.1 630 3961 08 12 47 08 23 44 J1532+2344 19 37 22 36.0 261.7 4.1 40.3 12 3961 08 23 44 08 24 44 =1530+239 19 38 23 35.9 261.9 4.1 40.3 60 3969 08 23 45 08 24 44 J1532+2344 19 38 23 35.9 261.9 4.1 40.3 -6 3969 No stop 08 25 14 =1530+239 19 38 53 35.8 262.0 4.1 40.3 24 3973 08 24 45 08 25 42 ARP220 19 39 20 35.9 261.5 4.1 40.2 11 3973 08 25 42 08 36 12 --- 19 49 52 34.3 263.7 4.2 40.4 630 4054 08 25 43 08 36 39 J1532+2344 19 50 20 34.1 264.5 4.3 40.6 12 4054 08 36 39 08 37 39 =1530+239 19 51 20 33.9 264.7 4.3 40.6 60 4062 08 36 40 08 37 39 J1532+2344 19 51 20 33.9 264.7 4.3 40.6 -6 4062 No stop 08 38 09 =1530+239 19 51 50 33.9 264.8 4.3 40.6 24 4066 08 37 40 08 38 37 ARP220 19 52 17 34.0 264.2 4.3 40.5 11 4066 08 38 37 08 49 07 --- 20 02 49 32.4 266.4 4.4 40.6 630 4147 08 38 38 08 49 34 J1532+2344 20 03 17 32.2 267.1 4.5 40.7 12 4147 08 49 34 08 50 34 =1530+239 20 04 17 32.0 267.3 4.5 40.7 60 4154 08 49 35 08 50 34 J1532+2344 20 04 17 32.0 267.3 4.5 40.7 -6 4154 No stop 08 51 04 =1530+239 20 04 47 31.9 267.5 4.5 40.7 24 4158 08 50 35 Schedule for JODRELL1 (Code Jb ) Page 10 18cm global VLBI observations of the starburst galaxy Arp 220 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 13 Mar 2023 Day 72 --- 08 51 31 ARP220 20 05 14 32.0 266.9 4.5 40.6 11 4158 08 51 31 09 02 01 --- 20 15 46 30.4 269.1 4.7 40.7 630 4239 08 51 32 09 02 29 J1532+2344 20 16 13 30.2 269.8 4.7 40.8 12 4239 09 02 29 09 03 59 =1530+239 20 17 44 30.0 270.1 4.7 40.8 90 4251 09 02 30 09 05 34 OQ208 20 19 19 20.8 289.9 6.2 39.7 0 4251 09 05 34 09 06 34 --- 20 20 19 20.6 290.1 6.2 39.7 60 4259 09 05 35 09 06 34 OQ208 20 20 19 20.6 290.1 6.2 39.7 -6 4259 No stop 09 10 34 --- 20 24 20 20.1 290.8 6.3 39.5 234 4290 09 06 35 09 12 06 J1532+2344 20 25 52 28.8 271.7 4.9 40.8 0 4290 09 12 06 09 13 06 =1530+239 20 26 52 28.6 271.9 4.9 40.8 60 4297 09 12 07 09 13 06 J1532+2344 20 26 52 28.6 271.9 4.9 40.8 -6 4297 No stop 09 13 36 =1530+239 20 27 22 28.6 272.0 4.9 40.8 24 4301 09 13 07 09 14 03 ARP220 20 27 49 28.6 271.5 4.9 40.7 11 4301 09 14 03 09 24 33 --- 20 38 21 27.1 273.5 5.0 40.6 630 4382 09 14 04 09 25 00 J1532+2344 20 38 49 26.8 274.2 5.1 40.7 12 4382 09 25 00 09 26 00 =1530+239 20 39 49 26.7 274.4 5.1 40.7 60 4390 09 25 01 09 26 00 J1532+2344 20 39 49 26.7 274.4 5.1 40.7 -6 4390 No stop 09 26 30 =1530+239 20 40 19 26.6 274.5 5.1 40.6 24 4394 09 26 01 09 26 57 ARP220 20 40 46 26.7 274.0 5.1 40.6 12 4394 09 26 57 09 37 27 --- 20 51 17 25.1 276.1 5.3 40.4 630 4475 09 26 58 09 37 55 J1532+2344 20 51 45 24.9 276.7 5.3 40.5 12 4475 09 37 55 09 38 55 =1530+239 20 52 45 24.8 276.9 5.3 40.4 60 4483 09 37 56 09 38 55 J1532+2344 20 52 45 24.8 276.9 5.3 40.4 -6 4483 No stop 09 39 25 =1530+239 20 53 15 24.7 277.0 5.3 40.4 24 4487 09 38 56 09 39 52 ARP220 20 53 42 24.8 276.5 5.3 40.4 12 4487 09 39 52 09 50 22 --- 21 04 14 23.2 278.5 5.5 40.2 630 4568 09 39 53 09 50 49 J1532+2344 21 04 41 23.0 279.2 5.5 40.2 12 4568 09 50 49 09 51 49 =1530+239 21 05 41 22.9 279.4 5.5 40.1 60 4576 09 50 50 09 51 49 J1532+2344 21 05 41 22.9 279.4 5.5 40.1 -6 4576 No stop 09 52 19 =1530+239 21 06 11 22.8 279.5 5.5 40.1 24 4580 09 51 50 Schedule for JODRELL1 (Code Jb ) Page 11 18cm global VLBI observations of the starburst galaxy Arp 220 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 13 Mar 2023 Day 72 --- 09 52 46 ARP220 21 06 38 22.9 279.0 5.5 40.1 12 4580 09 52 46 10 03 16 --- 21 17 10 21.3 281.0 5.7 39.8 630 4661 09 52 47 10 03 43 J1532+2344 21 17 37 21.1 281.7 5.7 39.8 12 4661 10 03 43 10 05 13 =1530+239 21 19 08 20.9 281.9 5.8 39.7 90 4672 10 03 44 10 07 31 OQ208 21 21 26 12.4 301.2 7.2 35.6 46 4672 10 07 31 10 08 31 --- 21 22 26 12.3 301.4 7.2 35.5 60 4680 10 07 32 10 08 31 OQ208 21 22 26 12.3 301.4 7.2 35.5 -6 4680 No stop 10 12 31 --- 21 26 27 11.7 302.1 7.3 35.2 234 4711 10 08 32 10 14 55 J1532+2344 21 28 52 19.5 283.8 5.9 39.4 55 4711 10 14 55 10 15 55 =1530+239 21 29 52 19.3 284.0 5.9 39.4 60 4719 10 14 56 10 15 55 J1532+2344 21 29 52 19.3 284.0 5.9 39.4 -6 4719 No stop 10 16 25 =1530+239 21 30 22 19.2 284.0 5.9 39.3 24 4723 10 15 56 10 16 40 ARP220 21 30 37 19.3 283.5 5.9 39.4 0 4723 10 16 40 10 27 10 --- 21 41 09 17.8 285.5 6.1 38.9 630 4804 10 16 41 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess123.L1024glob --- 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: 14 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: 1 Setup file default. Used with PCAL = off LO sum= 1626.00 1626.00 1626.00 1626.00 1690.00 1690.00 1690.00 1690.00 BBC fr= 646.00 646.00 646.00 646.00 582.00 582.00 582.00 582.00 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) * ARP220 15 32 46.905485 * 15 34 57.250000 15 35 57.940194 0.00 23 40 07.75728 * 23 30 11.33000 23 25 18.96580 0.00 From catalog imbedded in main SCHED input file. * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 13.487531 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 23 13.19246 0.16 1328+307 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1331+30 GSFC 2016a X/S astro solution, 269 observations. * OQ208 14 04 45.615156 * 14 07 00.394415 14 08 03.650024 0.24 J1407+2827 28 41 29.23515 * 28 27 14.69019 28 20 26.03181 0.35 1404+286 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1407+28 GSFC 2016a X/S astro solution, 68278 observations. 1514+197 15 14 40.985841 * 15 16 56.796164 15 18 00.065612 0.01 * J1516+1932 19 43 10.94247 * 19 32 12.99203 19 26 53.79356 0.02 J1516+19 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 4472 observations. 1530+239 15 30 36.092759 * 15 32 46.345214 15 33 47.008502 0.08 * J1532+2344 23 54 09.32913 * 23 44 05.26796 23 39 09.39949 0.14 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 171 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 ARP220 sess123.L1024glob 1 2 3 4 5 6 7 8 9 10 11 17 + 12.250 1600.189 3C286 sess123.L1024glob 17 0.133 0.000 OQ208 sess123.L1024glob 1 2 3 4 5 6 7 8 9 10 11 17 + 1.500 188.550 J1516+1932 sess123.L1024glob 1 2 3 4 5 6 7 8 9 10 11 0.083 10.000 J1532+2344 sess123.L1024glob 1 2 3 4 5 6 7 8 9 10 11 17 + 2.183 275.621 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) ARP220 117.8 3C286 140.6 OQ208 135.1 J1516+1932 122.6 J1532+2344 118.2 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