COVER INFORMATION Station: DARNHALL (Code Da ) Experiment: 6cm global VLBI observations of the starburst galaxy Arp 220 Exp. Code: gv028a Schedule Version: 4.00 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 exclude outer 3 stations for each arm. 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 exclude outer 3 stations on each arm, to get C-array synthesized beam size. EF: Gaps for pointing at : end of scan 56 at 03:18:10 UT to start of scan 59 at 03:26:46 end of scan 120 at 06:45:37 UT to start of scan 124 at 06:54:19 end of scan 188 at 09:46:29 UT to start of scan 191 at 09:54:39 Schedule for DARNHALL (Code Da ) Page 2 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- Next scan frequencies: 4868.00 4868.00 Next BBC frequencies: 796.00 796.00 Next scan bandwidths: 64.00 64.00 00 00 00 J1516+1932 10 08 16 22.9 87.8 -5.2 -39.5 0 0 00 00 00 00 05 00 =1514+197 10 13 17 23.7 88.8 -5.1 -39.5 300 19 00 00 01 00 07 23 OQ208 10 15 40 41.2 96.7 -3.9 -42.6 68 19 00 07 23 00 12 23 --- 10 20 41 42.0 97.8 -3.8 -42.5 300 39 00 07 24 00 14 35 J1532+2344 10 22 53 26.0 84.6 -5.2 -40.7 60 39 00 14 35 00 16 05 =1530+239 10 24 23 26.2 84.9 -5.2 -40.7 90 44 00 14 36 00 16 31 ARP220 10 24 50 25.8 84.7 -5.2 -40.6 13 44 00 16 31 00 20 31 --- 10 28 50 26.4 85.5 -5.1 -40.7 240 60 00 16 32 00 20 58 J1532+2344 10 29 17 26.9 85.8 -5.1 -40.8 13 60 00 20 58 00 22 28 =1530+239 10 30 48 27.1 86.1 -5.0 -40.8 90 66 00 20 59 00 22 54 ARP220 10 31 14 26.7 86.0 -5.1 -40.7 13 66 00 22 54 00 26 54 --- 10 35 15 27.3 86.7 -5.0 -40.7 240 81 00 22 55 00 27 21 J1532+2344 10 35 42 27.9 87.1 -5.0 -40.8 13 81 00 27 21 00 28 51 =1530+239 10 37 12 28.1 87.4 -4.9 -40.8 90 87 00 27 22 00 29 18 ARP220 10 37 38 27.7 87.2 -5.0 -40.7 13 87 00 29 18 00 33 18 --- 10 41 39 28.3 88.0 -4.9 -40.8 240 102 00 29 19 00 33 45 J1532+2344 10 42 06 28.8 88.3 -4.9 -40.9 13 102 00 33 45 00 35 15 =1530+239 10 43 36 29.1 88.6 -4.8 -40.9 90 108 00 33 46 00 35 41 ARP220 10 44 03 28.6 88.5 -4.9 -40.8 13 108 00 35 41 00 39 41 --- 10 48 04 29.2 89.3 -4.8 -40.8 240 124 00 35 42 00 40 08 J1532+2344 10 48 31 29.8 89.6 -4.8 -40.9 13 124 00 40 08 00 41 38 =1530+239 10 50 01 30.0 89.9 -4.7 -40.9 90 129 00 40 09 00 42 04 ARP220 10 50 27 29.6 89.7 -4.8 -40.8 13 129 00 42 04 00 46 04 --- 10 54 28 30.2 90.6 -4.7 -40.8 240 145 00 42 05 00 46 31 J1532+2344 10 54 55 30.8 90.9 -4.6 -40.9 13 145 00 46 31 00 48 01 =1530+239 10 56 25 31.0 91.2 -4.6 -40.9 90 151 00 46 32 00 48 28 ARP220 10 56 52 30.6 91.0 -4.7 -40.8 13 151 00 48 28 00 52 28 --- 11 00 52 31.2 91.8 -4.6 -40.8 240 166 00 48 29 Schedule for DARNHALL (Code Da ) Page 3 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 00 52 55 J1532+2344 11 01 19 31.7 92.2 -4.5 -40.9 13 166 00 52 55 00 54 25 =1530+239 11 02 50 31.9 92.5 -4.5 -40.8 90 172 00 52 56 00 54 51 ARP220 11 03 16 31.5 92.3 -4.5 -40.8 13 172 00 54 51 00 58 51 --- 11 07 17 32.1 93.2 -4.5 -40.7 240 187 00 54 52 00 59 18 J1532+2344 11 07 44 32.7 93.5 -4.4 -40.8 13 187 00 59 18 01 00 48 =1530+239 11 09 14 32.9 93.8 -4.4 -40.8 90 193 00 59 19 01 01 14 ARP220 11 09 40 32.5 93.6 -4.4 -40.7 13 193 01 01 14 01 05 14 --- 11 13 41 33.1 94.5 -4.4 -40.7 240 209 01 01 15 01 05 41 J1532+2344 11 14 08 33.6 94.8 -4.3 -40.7 13 209 01 05 41 01 07 11 =1530+239 11 15 38 33.9 95.2 -4.3 -40.7 90 214 01 05 42 01 09 26 OQ208 11 17 53 50.2 111.5 -2.8 -39.3 63 214 01 09 26 01 14 26 --- 11 22 54 50.9 112.8 -2.8 -38.9 300 234 01 09 27 01 16 35 J1532+2344 11 25 03 35.3 97.1 -4.1 -40.5 59 234 01 16 35 01 18 05 =1530+239 11 26 33 35.5 97.5 -4.1 -40.5 90 240 01 16 36 01 18 31 ARP220 11 27 00 35.1 97.3 -4.1 -40.4 13 240 01 18 31 01 22 31 --- 11 31 00 35.7 98.1 -4.1 -40.3 240 255 01 18 32 01 22 58 J1532+2344 11 31 27 36.2 98.5 -4.0 -40.3 13 255 01 22 58 01 24 28 =1530+239 11 32 58 36.4 98.8 -4.0 -40.3 90 261 01 22 59 01 24 54 ARP220 11 33 24 36.0 98.7 -4.0 -40.2 13 261 01 24 54 01 28 54 --- 11 37 25 36.6 99.5 -4.0 -40.1 240 276 01 24 55 01 29 21 J1532+2344 11 37 52 37.2 99.9 -3.9 -40.2 13 276 01 29 21 01 30 51 =1530+239 11 39 22 37.4 100.2 -3.9 -40.1 90 282 01 29 22 01 31 17 ARP220 11 39 48 37.0 100.0 -3.9 -40.0 13 282 01 31 17 01 35 17 --- 11 43 49 37.5 100.9 -3.9 -39.9 240 298 01 31 18 01 35 44 J1532+2344 11 44 16 38.1 101.3 -3.8 -39.9 13 298 01 35 44 01 37 14 =1530+239 11 45 46 38.3 101.7 -3.8 -39.9 90 303 01 35 45 01 37 41 ARP220 11 46 12 37.9 101.5 -3.8 -39.8 13 303 01 37 41 01 41 41 --- 11 50 13 38.5 102.4 -3.8 -39.7 240 319 01 37 42 01 42 07 J1532+2344 11 50 40 39.0 102.8 -3.7 -39.7 13 319 01 42 07 01 43 37 =1530+239 11 52 10 39.3 103.1 -3.7 -39.6 90 325 01 42 08 Schedule for DARNHALL (Code Da ) Page 4 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 01 44 04 ARP220 11 52 37 38.8 102.9 -3.7 -39.6 13 325 01 44 04 01 48 04 --- 11 56 37 39.4 103.8 -3.7 -39.4 240 340 01 44 05 01 48 30 J1532+2344 11 57 04 40.0 104.2 -3.6 -39.4 13 340 01 48 30 01 50 00 =1530+239 11 58 34 40.2 104.6 -3.6 -39.3 90 346 01 48 31 01 50 27 ARP220 11 59 01 39.8 104.4 -3.6 -39.3 13 346 01 50 27 01 54 27 --- 12 03 01 40.3 105.3 -3.5 -39.1 240 361 01 50 28 01 54 53 J1532+2344 12 03 28 40.9 105.7 -3.5 -39.1 13 361 01 54 53 01 56 23 =1530+239 12 04 59 41.1 106.1 -3.5 -39.0 90 367 01 54 54 01 56 50 ARP220 12 05 25 40.7 105.9 -3.5 -38.9 13 367 01 56 50 02 00 50 --- 12 09 25 41.3 106.8 -3.4 -38.7 240 383 01 56 51 02 01 16 J1532+2344 12 09 52 41.8 107.3 -3.4 -38.7 13 383 02 01 16 02 02 46 =1530+239 12 11 23 42.0 107.6 -3.4 -38.6 90 388 02 01 17 02 03 13 ARP220 12 11 49 41.6 107.4 -3.4 -38.6 13 388 02 03 13 02 07 13 --- 12 15 50 42.2 108.4 -3.3 -38.3 240 404 02 03 14 02 07 39 J1532+2344 12 16 16 42.7 108.8 -3.3 -38.3 13 404 02 07 39 02 09 09 =1530+239 12 17 47 43.0 109.2 -3.3 -38.2 90 410 02 07 40 02 11 15 OQ208 12 19 53 58.2 130.6 -1.8 -31.2 39 410 02 11 15 02 16 15 --- 12 24 53 58.8 132.4 -1.7 -30.2 300 429 02 11 16 02 18 16 J1532+2344 12 26 54 44.2 111.5 -3.1 -37.5 34 429 02 18 16 02 19 46 =1530+239 12 28 24 44.4 111.8 -3.1 -37.4 90 435 02 18 17 02 20 12 ARP220 12 28 51 44.0 111.6 -3.1 -37.4 13 435 02 20 12 02 24 12 --- 12 32 51 44.6 112.6 -3.1 -37.1 240 450 02 20 13 02 24 38 J1532+2344 12 33 18 45.1 113.1 -3.0 -37.0 13 450 02 24 38 02 26 08 =1530+239 12 34 48 45.3 113.5 -3.0 -36.9 90 456 02 24 39 02 26 34 ARP220 12 35 14 44.9 113.2 -3.0 -36.9 13 456 02 26 34 02 30 34 --- 12 39 15 45.5 114.3 -2.9 -36.6 240 471 02 26 35 02 31 01 J1532+2344 12 39 42 46.0 114.8 -2.9 -36.5 13 471 02 31 01 02 32 31 =1530+239 12 41 12 46.2 115.2 -2.9 -36.3 90 477 02 31 02 02 32 57 ARP220 12 41 38 45.8 114.9 -2.9 -36.4 13 477 02 32 57 02 36 57 --- 12 45 39 46.3 116.0 -2.8 -36.0 240 493 02 32 58 Schedule for DARNHALL (Code Da ) Page 5 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 02 37 24 J1532+2344 12 46 06 46.9 116.5 -2.8 -35.9 13 493 02 37 24 02 38 54 =1530+239 12 47 36 47.1 116.9 -2.8 -35.7 90 499 02 37 25 02 39 20 ARP220 12 48 02 46.6 116.6 -2.8 -35.7 13 499 02 39 20 02 43 20 --- 12 52 03 47.2 117.7 -2.7 -35.3 240 514 02 39 21 02 43 47 J1532+2344 12 52 30 47.7 118.2 -2.7 -35.2 14 514 02 43 47 02 45 17 =1530+239 12 54 00 47.9 118.7 -2.7 -35.1 90 520 02 43 48 02 45 43 ARP220 12 54 26 47.5 118.4 -2.7 -35.1 13 520 02 45 43 02 49 43 --- 12 58 27 48.0 119.5 -2.6 -34.7 240 535 02 45 44 02 50 10 J1532+2344 12 58 54 48.6 120.0 -2.6 -34.5 14 535 02 50 10 02 51 40 =1530+239 13 00 24 48.8 120.5 -2.6 -34.3 90 541 02 50 11 02 52 06 ARP220 13 00 50 48.3 120.2 -2.6 -34.4 13 541 02 52 06 02 56 06 --- 13 04 51 48.9 121.3 -2.5 -33.9 240 556 02 52 07 02 56 34 J1532+2344 13 05 18 49.4 121.9 -2.5 -33.8 14 556 02 56 34 02 58 04 =1530+239 13 06 49 49.6 122.3 -2.4 -33.6 90 562 02 56 35 02 58 30 ARP220 13 07 15 49.2 122.0 -2.5 -33.6 14 562 02 58 30 03 02 30 --- 13 11 16 49.7 123.2 -2.4 -33.1 240 578 02 58 31 03 02 58 J1532+2344 13 11 44 50.2 123.8 -2.4 -33.0 14 578 03 02 58 03 04 28 =1530+239 13 13 14 50.4 124.2 -2.3 -32.8 90 584 03 02 59 03 04 54 ARP220 13 13 41 50.0 123.9 -2.4 -32.8 14 584 03 04 54 03 08 54 --- 13 17 41 50.5 125.1 -2.3 -32.3 240 599 03 04 55 03 09 22 J1532+2344 13 18 09 51.0 125.8 -2.3 -32.1 15 599 03 09 22 03 10 52 =1530+239 13 19 40 51.2 126.2 -2.2 -31.9 90 605 03 09 23 03 13 10 OQ208 13 21 57 63.8 156.6 -0.8 -15.7 24 605 03 13 10 03 18 10 --- 13 26 58 64.1 159.0 -0.7 -14.1 300 624 03 13 11 03 20 25 J1532+2344 13 29 14 52.3 129.2 -2.1 -30.5 23 624 03 20 25 03 21 55 =1530+239 13 30 44 52.5 129.7 -2.1 -30.2 90 630 03 20 26 03 22 20 ARP220 13 31 09 52.1 129.3 -2.1 -30.4 13 630 03 22 20 03 26 20 --- 13 35 10 52.5 130.7 -2.0 -29.7 240 645 03 22 21 03 26 46 J1532+2344 13 35 36 53.0 131.3 -2.0 -29.4 11 645 03 26 46 03 28 16 =1530+239 13 37 06 53.2 131.8 -1.9 -29.2 90 651 03 26 47 Schedule for DARNHALL (Code Da ) Page 6 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 03 28 43 ARP220 13 37 34 52.8 131.4 -2.0 -29.3 15 651 03 28 43 03 32 43 --- 13 41 34 53.2 132.8 -1.9 -28.7 240 667 03 28 44 03 33 13 J1532+2344 13 42 04 53.7 133.5 -1.9 -28.4 15 667 03 33 13 03 34 43 =1530+239 13 43 34 53.9 134.0 -1.8 -28.1 90 672 03 33 14 03 35 11 ARP220 13 44 02 53.5 133.6 -1.9 -28.2 15 672 03 35 11 03 39 11 --- 13 48 03 53.9 135.0 -1.8 -27.5 240 688 03 35 12 03 39 40 J1532+2344 13 48 32 54.4 135.7 -1.8 -27.2 15 688 03 39 40 03 41 10 =1530+239 13 50 03 54.6 136.3 -1.7 -26.9 90 694 03 39 41 03 41 39 ARP220 13 50 31 54.2 135.8 -1.8 -27.1 15 694 03 41 39 03 45 39 --- 13 54 32 54.6 137.3 -1.7 -26.3 240 709 03 41 40 03 46 09 J1532+2344 13 55 02 55.1 138.0 -1.6 -26.0 15 709 03 46 09 03 47 39 =1530+239 13 56 32 55.2 138.6 -1.6 -25.7 90 715 03 46 10 03 48 07 ARP220 13 57 00 54.9 138.1 -1.6 -25.9 15 715 03 48 07 03 52 07 --- 14 01 01 55.3 139.6 -1.6 -25.1 240 730 03 48 08 03 52 37 J1532+2344 14 01 32 55.7 140.4 -1.5 -24.7 15 730 03 52 37 03 54 07 =1530+239 14 03 02 55.9 141.0 -1.5 -24.3 90 736 03 52 38 03 54 36 ARP220 14 03 31 55.5 140.5 -1.5 -24.6 15 736 03 54 36 03 58 36 --- 14 07 31 55.9 142.0 -1.5 -23.7 240 752 03 54 37 03 59 07 J1532+2344 14 08 02 56.3 142.8 -1.4 -23.3 15 752 03 59 07 04 00 37 =1530+239 14 09 32 56.5 143.4 -1.4 -23.0 90 757 03 59 08 04 01 06 ARP220 14 10 01 56.1 142.9 -1.4 -23.2 15 757 04 01 06 04 05 06 --- 14 14 02 56.5 144.5 -1.4 -22.3 240 773 04 01 07 04 05 37 J1532+2344 14 14 33 56.9 145.4 -1.3 -21.8 15 773 04 05 37 04 07 07 =1530+239 14 16 03 57.0 145.9 -1.3 -21.5 90 779 04 05 38 04 07 36 ARP220 14 16 33 56.7 145.4 -1.3 -21.8 15 779 04 07 36 04 11 36 --- 14 20 33 57.0 147.0 -1.3 -20.8 240 794 04 07 37 04 12 08 J1532+2344 14 21 05 57.5 147.9 -1.2 -20.3 15 794 04 12 08 04 13 38 =1530+239 14 22 35 57.6 148.5 -1.2 -20.0 90 800 04 12 09 04 16 35 OQ208 14 25 33 65.0 189.1 0.3 6.2 34 800 04 16 35 04 21 35 --- 14 30 34 64.8 191.7 0.4 8.0 300 819 04 16 36 Schedule for DARNHALL (Code Da ) Page 7 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 04 24 26 J1532+2344 14 33 25 58.4 153.0 -1.0 -17.3 31 819 04 24 26 04 25 56 =1530+239 14 34 55 58.5 153.6 -1.0 -16.9 90 825 04 24 27 04 26 26 ARP220 14 35 26 58.1 153.0 -1.0 -17.2 15 825 04 26 26 04 30 26 --- 14 39 26 58.4 154.7 -0.9 -16.2 240 841 04 26 27 04 30 58 J1532+2344 14 39 58 58.8 155.7 -0.9 -15.6 15 841 04 30 58 04 32 28 =1530+239 14 41 29 58.9 156.4 -0.9 -15.2 90 846 04 30 59 04 32 58 ARP220 14 41 59 58.6 155.8 -0.9 -15.6 15 846 04 32 58 04 36 58 --- 14 46 00 58.8 157.5 -0.8 -14.5 240 862 04 32 59 04 37 30 J1532+2344 14 46 32 59.2 158.5 -0.8 -13.9 15 862 04 37 30 04 39 00 =1530+239 14 48 02 59.3 159.2 -0.8 -13.4 90 868 04 37 31 04 39 31 ARP220 14 48 33 58.9 158.6 -0.8 -13.8 15 868 04 39 31 04 43 31 --- 14 52 33 59.1 160.3 -0.7 -12.7 240 883 04 39 32 04 44 03 J1532+2344 14 53 06 59.5 161.4 -0.7 -12.0 15 883 04 44 03 04 45 33 =1530+239 14 54 36 59.6 162.1 -0.7 -11.6 90 889 04 44 04 04 46 04 ARP220 14 55 07 59.3 161.4 -0.7 -12.0 15 889 04 46 04 04 50 04 --- 14 59 08 59.5 163.2 -0.6 -10.9 240 904 04 46 05 04 50 37 J1532+2344 14 59 40 59.8 164.3 -0.6 -10.2 15 904 04 50 37 04 52 07 =1530+239 15 01 11 59.9 165.0 -0.5 -9.7 90 910 04 50 38 04 52 37 ARP220 15 01 41 59.6 164.3 -0.6 -10.2 15 910 04 52 37 04 56 37 --- 15 05 42 59.7 166.1 -0.5 -9.0 240 926 04 52 38 04 57 10 J1532+2344 15 06 15 60.0 167.3 -0.5 -8.3 15 926 04 57 10 04 58 40 =1530+239 15 07 45 60.1 168.0 -0.4 -7.8 90 931 04 57 11 04 59 11 ARP220 15 08 16 59.8 167.3 -0.5 -8.3 15 931 04 59 11 05 03 11 --- 15 12 17 59.9 169.1 -0.4 -7.1 240 947 04 59 12 05 03 44 J1532+2344 15 12 50 60.2 170.3 -0.3 -6.3 14 947 05 03 44 05 05 14 =1530+239 15 14 20 60.3 171.0 -0.3 -5.9 90 953 05 03 45 05 05 45 ARP220 15 14 51 60.0 170.3 -0.4 -6.3 14 953 05 05 45 05 09 45 --- 15 18 52 60.1 172.1 -0.3 -5.1 240 968 05 05 46 05 10 18 J1532+2344 15 19 25 60.4 173.3 -0.2 -4.4 14 968 05 10 18 05 11 48 =1530+239 15 20 55 60.4 174.0 -0.2 -3.9 90 974 05 10 19 Schedule for DARNHALL (Code Da ) Page 8 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 05 12 19 ARP220 15 21 26 60.1 173.3 -0.2 -4.4 14 974 05 12 19 05 16 19 --- 15 25 27 60.2 175.1 -0.2 -3.2 240 989 05 12 20 05 16 52 J1532+2344 15 26 00 60.5 176.4 -0.1 -2.4 14 989 05 16 52 05 18 22 =1530+239 15 27 30 60.5 177.1 -0.1 -1.9 90 995 05 16 53 05 21 26 OQ208 15 30 35 60.9 219.6 1.4 25.8 35 995 05 21 26 05 26 26 --- 15 35 36 60.4 221.6 1.5 26.9 300 1014 05 21 27 05 29 19 J1532+2344 15 38 29 60.5 182.2 0.1 1.4 31 1014 05 29 19 05 30 49 =1530+239 15 40 00 60.5 182.9 0.1 1.9 90 1020 05 29 20 05 31 20 ARP220 15 40 31 60.3 182.1 0.1 1.4 14 1020 05 31 20 05 35 20 --- 15 44 31 60.2 184.0 0.1 2.6 240 1036 05 31 21 05 35 53 J1532+2344 15 45 04 60.4 185.2 0.2 3.4 14 1036 05 35 53 05 37 23 =1530+239 15 46 34 60.4 185.9 0.2 3.9 90 1042 05 35 54 05 37 54 ARP220 15 47 06 60.2 185.1 0.2 3.4 14 1042 05 37 54 05 41 54 --- 15 51 06 60.1 187.0 0.3 4.6 240 1057 05 37 55 05 42 27 J1532+2344 15 51 39 60.3 188.3 0.3 5.4 13 1057 05 42 27 05 43 57 =1530+239 15 53 09 60.3 189.0 0.3 5.9 90 1063 05 42 28 05 44 28 ARP220 15 53 40 60.1 188.2 0.3 5.3 14 1063 05 44 28 05 48 28 --- 15 57 41 60.0 190.0 0.4 6.5 240 1078 05 44 29 05 49 00 J1532+2344 15 58 14 60.1 191.3 0.4 7.4 13 1078 05 49 00 05 50 30 =1530+239 15 59 44 60.1 192.0 0.4 7.8 90 1084 05 49 01 05 51 01 ARP220 16 00 15 59.9 191.2 0.4 7.3 14 1084 05 51 01 05 55 01 --- 16 04 15 59.8 193.0 0.5 8.4 240 1099 05 51 02 05 55 34 J1532+2344 16 04 48 59.9 194.3 0.5 9.3 13 1099 05 55 34 05 57 04 =1530+239 16 06 18 59.9 195.0 0.5 9.7 90 1105 05 55 35 05 57 34 ARP220 16 06 49 59.7 194.1 0.5 9.2 13 1105 05 57 34 06 01 34 --- 16 10 50 59.5 195.9 0.6 10.3 240 1121 05 57 35 06 02 07 J1532+2344 16 11 22 59.6 197.2 0.6 11.2 13 1121 06 02 07 06 03 37 =1530+239 16 12 52 59.6 197.9 0.7 11.6 90 1127 06 02 08 06 04 07 ARP220 16 13 23 59.4 197.1 0.6 11.1 13 1127 06 04 07 06 08 07 --- 16 17 24 59.2 198.8 0.7 12.2 240 1142 06 04 08 Schedule for DARNHALL (Code Da ) Page 9 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 06 08 39 J1532+2344 16 17 56 59.3 200.1 0.7 13.0 13 1142 06 08 39 06 10 09 =1530+239 16 19 26 59.3 200.8 0.8 13.4 90 1148 06 08 40 06 10 29 J1532+2344 16 19 46 59.2 200.9 0.8 13.5 15 1148 06 10 29 06 11 29 =1530+239 16 20 46 59.2 201.4 0.8 13.8 60 1152 06 10 30 06 11 29 J1532+2344 16 20 46 59.2 201.4 0.8 13.8 -2 1152 No stop 06 11 59 =1530+239 16 21 16 59.2 201.6 0.8 13.9 28 1154 06 11 30 06 12 30 ARP220 16 21 47 59.0 200.7 0.8 13.4 13 1154 06 12 30 06 16 30 --- 16 25 48 58.8 202.5 0.8 14.5 240 1169 06 12 31 06 17 02 J1532+2344 16 26 20 58.9 203.7 0.9 15.3 13 1169 06 17 02 06 18 32 =1530+239 16 27 50 58.8 204.4 0.9 15.7 90 1175 06 17 03 06 19 02 ARP220 16 28 20 58.7 203.6 0.9 15.1 13 1175 06 19 02 06 23 02 --- 16 32 21 58.4 205.3 0.9 16.2 240 1190 06 19 03 06 23 34 J1532+2344 16 32 53 58.4 206.5 1.0 17.0 13 1190 06 23 34 06 24 34 =1530+239 16 33 53 58.4 206.9 1.0 17.3 60 1194 06 23 35 06 24 34 J1532+2344 16 33 53 58.4 206.9 1.0 17.3 -2 1194 No stop 06 25 04 =1530+239 16 34 23 58.3 207.1 1.0 17.4 28 1196 06 24 35 06 25 34 ARP220 16 34 54 58.2 206.3 1.0 16.8 13 1196 06 25 34 06 29 34 --- 16 38 54 58.0 208.0 1.0 17.9 240 1212 06 25 35 06 30 06 J1532+2344 16 39 26 58.0 209.2 1.1 18.6 13 1212 06 30 06 06 31 36 =1530+239 16 40 56 57.9 209.8 1.1 19.0 90 1217 06 30 07 06 32 06 ARP220 16 41 26 57.8 209.0 1.1 18.5 13 1217 06 32 06 06 36 06 --- 16 45 27 57.5 210.6 1.2 19.5 240 1233 06 32 07 06 36 37 J1532+2344 16 45 58 57.5 211.9 1.2 20.2 12 1233 06 36 37 06 38 07 =1530+239 16 47 29 57.4 212.5 1.2 20.6 90 1239 06 36 38 06 40 37 OQ208 16 49 59 51.4 246.3 2.7 38.6 26 1239 06 40 37 06 41 37 --- 16 50 59 51.2 246.6 2.7 38.7 60 1242 06 40 38 06 41 37 OQ208 16 50 59 51.2 246.6 2.7 38.7 -2 1242 No stop 06 45 37 --- 16 55 00 50.7 247.6 2.8 39.1 238 1258 06 41 38 06 47 58 J1532+2344 16 57 21 56.5 216.3 1.4 22.8 23 1258 06 47 58 06 48 58 =1530+239 16 58 21 56.4 216.7 1.4 23.0 60 1262 06 47 59 Schedule for DARNHALL (Code Da ) Page 10 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 06 48 58 J1532+2344 16 58 21 56.4 216.7 1.4 23.0 -2 1262 No stop 06 49 28 =1530+239 16 58 51 56.4 216.9 1.4 23.1 28 1264 06 48 59 06 49 53 ARP220 16 59 17 56.3 216.1 1.4 22.6 8 1264 06 49 53 06 53 53 --- 17 03 17 56.0 217.6 1.5 23.5 240 1279 06 49 54 06 54 19 J1532+2344 17 03 43 56.0 218.7 1.5 24.2 7 1279 06 54 19 06 55 49 =1530+239 17 05 13 55.8 219.3 1.5 24.5 90 1285 06 54 20 06 56 19 ARP220 17 05 43 55.8 218.5 1.5 24.0 13 1285 06 56 19 07 00 19 --- 17 09 44 55.4 220.0 1.6 24.8 240 1300 06 56 20 07 00 49 J1532+2344 17 10 14 55.3 221.1 1.6 25.5 12 1300 07 00 49 07 02 19 =1530+239 17 11 45 55.2 221.7 1.6 25.8 90 1306 07 00 50 07 02 39 J1532+2344 17 12 05 55.1 221.8 1.6 25.9 15 1306 07 02 39 07 03 39 =1530+239 17 13 05 55.0 222.2 1.7 26.1 60 1310 07 02 40 07 03 39 J1532+2344 17 13 05 55.0 222.2 1.7 26.1 -2 1310 No stop 07 04 09 =1530+239 17 13 35 55.0 222.3 1.7 26.2 28 1312 07 03 40 07 04 39 ARP220 17 14 04 55.0 221.6 1.6 25.7 13 1312 07 04 39 07 08 39 --- 17 18 05 54.5 223.0 1.7 26.5 240 1327 07 04 40 07 09 09 J1532+2344 17 18 36 54.5 224.1 1.7 27.1 12 1327 07 09 09 07 10 39 =1530+239 17 20 06 54.3 224.6 1.8 27.4 90 1333 07 09 10 07 11 08 ARP220 17 20 35 54.3 223.9 1.7 26.9 13 1333 07 11 08 07 15 08 --- 17 24 36 53.9 225.3 1.8 27.7 240 1349 07 11 09 07 15 39 J1532+2344 17 25 06 53.8 226.4 1.9 28.3 12 1349 07 15 39 07 16 39 =1530+239 17 26 06 53.7 226.7 1.9 28.5 60 1353 07 15 40 07 16 39 J1532+2344 17 26 06 53.7 226.7 1.9 28.5 -2 1353 No stop 07 17 09 =1530+239 17 26 36 53.6 226.9 1.9 28.5 28 1355 07 16 40 07 17 38 ARP220 17 27 06 53.6 226.1 1.9 28.1 13 1355 07 17 38 07 21 38 --- 17 31 06 53.2 227.5 1.9 28.8 240 1370 07 17 39 07 22 08 J1532+2344 17 31 37 53.1 228.6 2.0 29.4 12 1370 07 22 08 07 23 38 =1530+239 17 33 07 52.9 229.1 2.0 29.6 90 1376 07 22 09 07 24 07 ARP220 17 33 36 52.9 228.3 2.0 29.2 13 1376 07 24 07 07 28 07 --- 17 37 37 52.4 229.6 2.0 29.9 240 1391 07 24 08 Schedule for DARNHALL (Code Da ) Page 11 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 07 28 37 J1532+2344 17 38 07 52.3 230.7 2.1 30.4 12 1391 07 28 37 07 29 37 =1530+239 17 39 07 52.2 231.0 2.1 30.6 60 1395 07 28 38 07 29 37 J1532+2344 17 39 07 52.2 231.0 2.1 30.6 -2 1395 No stop 07 30 07 =1530+239 17 39 37 52.1 231.2 2.1 30.7 28 1397 07 29 38 07 30 36 ARP220 17 40 06 52.1 230.4 2.1 30.3 13 1397 07 30 36 07 34 36 --- 17 44 06 51.7 231.7 2.1 30.9 240 1413 07 30 37 07 35 06 J1532+2344 17 44 36 51.6 232.8 2.2 31.4 12 1413 07 35 06 07 36 36 =1530+239 17 46 07 51.4 233.2 2.2 31.6 90 1418 07 35 07 07 37 04 ARP220 17 46 35 51.4 232.5 2.2 31.2 13 1418 07 37 04 07 41 04 --- 17 50 36 50.9 233.8 2.2 31.8 240 1434 07 37 05 07 41 34 J1532+2344 17 51 06 50.8 234.8 2.3 32.3 12 1434 07 41 34 07 43 04 =1530+239 17 52 36 50.6 235.2 2.3 32.5 90 1440 07 41 35 07 45 07 OQ208 17 54 39 42.1 262.1 3.8 42.4 19 1440 07 45 07 07 46 07 --- 17 55 39 41.9 262.3 3.8 42.5 60 1443 07 45 08 07 46 07 OQ208 17 55 39 41.9 262.3 3.8 42.5 -2 1443 No stop 07 50 07 --- 17 59 40 41.3 263.1 3.9 42.6 238 1459 07 46 08 07 52 03 J1532+2344 18 01 36 49.5 237.9 2.5 33.7 18 1459 07 52 03 07 53 03 =1530+239 18 02 37 49.3 238.2 2.5 33.8 60 1463 07 52 04 07 53 03 J1532+2344 18 02 37 49.3 238.2 2.5 33.8 -2 1463 No stop 07 53 33 =1530+239 18 03 07 49.3 238.4 2.5 33.9 28 1465 07 53 04 07 54 01 ARP220 18 03 35 49.3 237.7 2.5 33.5 13 1465 07 54 01 07 58 01 --- 18 07 36 48.8 238.8 2.5 34.0 240 1480 07 54 02 07 58 31 J1532+2344 18 08 05 48.6 239.8 2.6 34.5 12 1480 07 58 31 08 00 01 =1530+239 18 09 35 48.4 240.2 2.6 34.6 90 1486 07 58 32 08 00 29 ARP220 18 10 04 48.5 239.5 2.6 34.3 13 1486 08 00 29 08 04 29 --- 18 14 05 47.9 240.7 2.6 34.7 240 1501 08 00 30 08 04 58 J1532+2344 18 14 34 47.8 241.6 2.7 35.2 12 1501 08 04 58 08 05 58 =1530+239 18 15 34 47.7 241.9 2.7 35.3 60 1505 08 04 59 08 05 58 J1532+2344 18 15 34 47.7 241.9 2.7 35.3 -2 1505 No stop 08 06 28 =1530+239 18 16 04 47.6 242.0 2.7 35.3 28 1507 08 05 59 Schedule for DARNHALL (Code Da ) Page 12 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 08 06 56 ARP220 18 16 32 47.6 241.4 2.7 35.0 13 1507 08 06 56 08 10 56 --- 18 20 33 47.1 242.5 2.7 35.4 240 1523 08 06 57 08 11 25 J1532+2344 18 21 02 46.9 243.4 2.8 35.8 12 1523 08 11 25 08 12 55 =1530+239 18 22 32 46.7 243.8 2.8 36.0 90 1528 08 11 26 08 13 24 ARP220 18 23 01 46.8 243.2 2.8 35.7 13 1528 08 13 24 08 17 24 --- 18 27 01 46.2 244.2 2.9 36.1 240 1544 08 13 25 08 17 52 J1532+2344 18 27 30 46.0 245.1 2.9 36.4 12 1544 08 17 52 08 18 52 =1530+239 18 28 30 45.9 245.4 2.9 36.5 60 1548 08 17 53 08 18 52 J1532+2344 18 28 30 45.9 245.4 2.9 36.5 -2 1548 No stop 08 19 22 =1530+239 18 29 00 45.8 245.5 2.9 36.6 28 1550 08 18 53 08 19 50 ARP220 18 29 29 45.9 244.9 2.9 36.3 13 1550 08 19 50 08 23 50 --- 18 33 29 45.3 245.9 3.0 36.6 240 1565 08 19 51 08 24 19 J1532+2344 18 33 58 45.2 246.8 3.0 37.0 12 1565 08 24 19 08 25 49 =1530+239 18 35 28 45.0 247.2 3.0 37.1 90 1571 08 24 20 08 26 17 ARP220 18 35 56 45.0 246.6 3.0 36.8 13 1571 08 26 17 08 30 17 --- 18 39 57 44.5 247.6 3.1 37.2 240 1586 08 26 18 08 30 46 J1532+2344 18 40 26 44.3 248.5 3.1 37.5 12 1586 08 30 46 08 31 46 =1530+239 18 41 26 44.1 248.7 3.1 37.6 60 1590 08 30 47 08 31 46 J1532+2344 18 41 26 44.1 248.7 3.1 37.6 -2 1590 No stop 08 32 16 =1530+239 18 41 56 44.1 248.9 3.1 37.6 28 1592 08 31 47 08 32 44 ARP220 18 42 24 44.1 248.2 3.1 37.4 13 1592 08 32 44 08 36 44 --- 18 46 25 43.6 249.3 3.2 37.7 240 1608 08 32 45 08 37 12 J1532+2344 18 46 53 43.4 250.1 3.2 38.0 12 1608 08 37 12 08 38 42 =1530+239 18 48 23 43.1 250.5 3.2 38.1 90 1613 08 37 13 08 39 10 ARP220 18 48 51 43.2 249.9 3.2 37.8 13 1613 08 39 10 08 43 10 --- 18 52 52 42.6 250.9 3.3 38.1 240 1629 08 39 11 08 43 39 J1532+2344 18 53 20 42.4 251.7 3.3 38.4 12 1629 08 43 39 08 45 09 =1530+239 18 54 51 42.2 252.1 3.4 38.5 90 1635 08 43 40 08 46 54 OQ208 18 56 37 32.8 274.7 4.8 42.8 15 1635 08 46 54 08 47 54 --- 18 57 37 32.7 274.9 4.8 42.8 60 1639 08 46 55 Schedule for DARNHALL (Code Da ) Page 13 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 08 47 54 OQ208 18 57 37 32.7 274.9 4.8 42.8 -2 1639 No stop 08 51 54 --- 19 01 38 32.1 275.6 4.9 42.7 238 1654 08 47 55 08 53 36 J1532+2344 19 03 20 41.0 254.1 3.5 39.0 14 1654 08 53 36 08 54 36 =1530+239 19 04 20 40.9 254.3 3.5 39.1 60 1658 08 53 37 08 54 36 J1532+2344 19 04 20 40.9 254.3 3.5 39.1 -2 1658 No stop 08 55 06 =1530+239 19 04 50 40.8 254.4 3.5 39.1 28 1660 08 54 37 08 55 34 ARP220 19 05 18 40.9 253.8 3.5 38.9 13 1660 08 55 34 08 59 34 --- 19 09 18 40.3 254.8 3.6 39.1 240 1675 08 55 35 09 00 02 J1532+2344 19 09 47 40.1 255.6 3.6 39.3 13 1675 09 00 02 09 01 32 =1530+239 19 11 17 39.9 255.9 3.6 39.4 90 1681 09 00 03 09 01 59 ARP220 19 11 44 39.9 255.4 3.6 39.2 13 1681 09 01 59 09 05 59 --- 19 15 45 39.4 256.3 3.7 39.4 240 1697 09 02 00 09 06 28 J1532+2344 19 16 13 39.1 257.1 3.7 39.6 13 1697 09 06 28 09 07 28 =1530+239 19 17 14 39.0 257.3 3.7 39.7 60 1700 09 06 29 09 07 28 J1532+2344 19 17 14 39.0 257.3 3.7 39.7 -2 1700 No stop 09 07 58 =1530+239 19 17 44 38.9 257.4 3.7 39.7 28 1702 09 07 29 09 08 25 ARP220 19 18 11 39.0 256.8 3.7 39.5 13 1702 09 08 25 09 12 25 --- 19 22 12 38.4 257.7 3.8 39.7 240 1718 09 08 26 09 12 53 J1532+2344 19 22 40 38.2 258.5 3.8 39.9 13 1718 09 12 53 09 14 23 =1530+239 19 24 10 38.0 258.9 3.8 40.0 90 1724 09 12 54 09 14 51 ARP220 19 24 38 38.1 258.3 3.8 39.8 13 1724 09 14 51 09 18 51 --- 19 28 38 37.5 259.2 3.9 39.9 240 1739 09 14 52 09 19 19 J1532+2344 19 29 06 37.3 260.0 3.9 40.1 13 1739 09 19 19 09 20 19 =1530+239 19 30 06 37.1 260.2 3.9 40.2 60 1743 09 19 20 09 20 19 J1532+2344 19 30 06 37.1 260.2 3.9 40.2 -2 1743 No stop 09 20 49 =1530+239 19 30 37 37.0 260.3 3.9 40.2 28 1745 09 20 20 09 21 16 ARP220 19 31 04 37.1 259.7 3.9 40.0 13 1745 09 21 16 09 25 16 --- 19 35 05 36.5 260.6 4.0 40.1 240 1760 09 21 17 09 25 44 J1532+2344 19 35 33 36.3 261.4 4.0 40.3 13 1760 09 25 44 09 27 14 =1530+239 19 37 03 36.1 261.7 4.1 40.4 90 1766 09 25 45 Schedule for DARNHALL (Code Da ) Page 14 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 09 27 41 ARP220 19 37 30 36.2 261.1 4.0 40.2 13 1766 09 27 41 09 31 41 --- 19 41 31 35.6 262.0 4.1 40.3 240 1782 09 27 42 09 32 09 J1532+2344 19 41 59 35.3 262.7 4.1 40.5 13 1782 09 32 09 09 33 09 =1530+239 19 42 59 35.2 263.0 4.2 40.5 60 1785 09 32 10 09 33 09 J1532+2344 19 42 59 35.2 263.0 4.2 40.5 -2 1785 No stop 09 33 39 =1530+239 19 43 29 35.1 263.1 4.2 40.5 28 1787 09 33 10 09 34 06 ARP220 19 43 56 35.2 262.5 4.1 40.4 13 1787 09 34 06 09 38 06 --- 19 47 57 34.6 263.4 4.2 40.5 240 1803 09 34 07 09 38 34 J1532+2344 19 48 25 34.4 264.1 4.2 40.6 13 1803 09 38 34 09 40 04 =1530+239 19 49 55 34.2 264.4 4.3 40.7 90 1809 09 38 35 09 40 31 ARP220 19 50 22 34.2 263.9 4.2 40.5 13 1809 09 40 31 09 44 31 --- 19 54 23 33.6 264.7 4.3 40.6 240 1824 09 40 32 09 44 59 J1532+2344 19 54 51 33.4 265.5 4.4 40.7 13 1824 09 44 59 09 46 29 =1530+239 19 56 21 33.2 265.8 4.4 40.8 90 1830 09 45 00 09 48 06 OQ208 19 57 58 23.8 286.1 5.8 40.9 13 1830 09 48 06 09 49 06 --- 19 58 58 23.6 286.3 5.8 40.8 60 1834 09 48 07 09 49 06 OQ208 19 58 58 23.6 286.3 5.8 40.8 -2 1834 No stop 09 53 06 --- 20 02 59 23.1 287.0 5.9 40.7 238 1849 09 49 07 09 54 39 J1532+2344 20 04 33 32.0 267.5 4.5 40.8 12 1849 09 54 39 09 55 39 =1530+239 20 05 33 31.8 267.7 4.5 40.8 60 1853 09 54 40 09 55 39 J1532+2344 20 05 33 31.8 267.7 4.5 40.8 -2 1853 No stop 09 56 09 =1530+239 20 06 03 31.7 267.8 4.5 40.9 28 1855 09 55 40 09 56 36 ARP220 20 06 30 31.8 267.2 4.5 40.7 13 1855 09 56 36 10 00 36 --- 20 10 31 31.2 268.0 4.6 40.8 240 1870 09 56 37 10 01 04 J1532+2344 20 10 59 31.0 268.8 4.6 40.9 13 1870 10 01 04 10 02 34 =1530+239 20 12 29 30.8 269.1 4.6 40.9 90 1876 10 01 05 10 03 01 ARP220 20 12 56 30.9 268.5 4.6 40.8 13 1876 10 03 01 10 07 01 --- 20 16 57 30.3 269.3 4.7 40.8 240 1892 10 03 02 10 07 29 J1532+2344 20 17 24 30.0 270.1 4.7 40.9 13 1892 10 07 29 10 08 29 =1530+239 20 18 25 29.9 270.3 4.7 40.9 60 1896 10 07 30 Schedule for DARNHALL (Code Da ) Page 15 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 10 08 29 J1532+2344 20 18 25 29.9 270.3 4.7 40.9 -2 1896 No stop 10 08 59 =1530+239 20 18 55 29.8 270.4 4.8 40.9 28 1898 10 08 30 10 09 26 ARP220 20 19 22 29.9 269.8 4.7 40.8 13 1898 10 09 26 10 13 26 --- 20 23 22 29.3 270.6 4.8 40.8 240 1913 10 09 27 10 13 53 J1532+2344 20 23 50 29.1 271.3 4.8 40.9 13 1913 10 13 53 10 15 23 =1530+239 20 25 20 28.9 271.6 4.9 40.9 90 1919 10 13 54 10 15 50 ARP220 20 25 47 28.9 271.1 4.8 40.8 13 1919 10 15 50 10 19 50 --- 20 29 48 28.3 271.9 4.9 40.8 240 1934 10 15 51 10 20 18 J1532+2344 20 30 15 28.1 272.6 4.9 40.8 13 1934 10 20 18 10 21 18 =1530+239 20 31 16 28.0 272.8 5.0 40.8 60 1938 10 20 19 10 21 18 J1532+2344 20 31 16 28.0 272.8 5.0 40.8 -2 1938 No stop 10 21 48 =1530+239 20 31 46 27.9 272.9 5.0 40.8 28 1940 10 21 19 10 22 14 ARP220 20 32 13 28.0 272.4 4.9 40.8 13 1940 10 22 14 10 26 14 --- 20 36 13 27.4 273.2 5.0 40.7 240 1955 10 22 15 10 26 42 J1532+2344 20 36 41 27.2 273.9 5.0 40.8 13 1955 10 26 42 10 28 12 =1530+239 20 38 11 26.9 274.1 5.1 40.8 90 1961 10 26 43 10 28 39 ARP220 20 38 38 27.0 273.6 5.0 40.7 13 1961 10 28 39 10 32 39 --- 20 42 39 26.4 274.4 5.1 40.7 240 1977 10 28 40 10 33 06 J1532+2344 20 43 06 26.2 275.1 5.2 40.7 13 1977 10 33 06 10 34 06 =1530+239 20 44 06 26.1 275.3 5.2 40.7 60 1981 10 33 07 10 34 06 J1532+2344 20 44 06 26.1 275.3 5.2 40.7 -2 1981 No stop 10 34 36 =1530+239 20 44 36 26.0 275.4 5.2 40.7 28 1983 10 34 07 10 35 03 ARP220 20 45 03 26.1 274.9 5.2 40.6 13 1983 10 35 03 10 39 03 --- 20 49 04 25.5 275.7 5.2 40.6 240 1998 10 35 04 10 39 30 J1532+2344 20 49 31 25.2 276.3 5.3 40.6 13 1998 10 39 30 10 41 00 =1530+239 20 51 02 25.0 276.6 5.3 40.6 90 2004 10 39 31 10 41 27 ARP220 20 51 29 25.1 276.1 5.3 40.5 13 2004 10 41 27 10 45 27 --- 20 55 29 24.5 276.9 5.3 40.4 240 2019 10 41 28 10 45 55 J1532+2344 20 55 57 24.3 277.6 5.4 40.5 13 2019 10 45 55 10 47 25 =1530+239 20 57 27 24.1 277.9 5.4 40.4 90 2025 10 45 56 Schedule for DARNHALL (Code Da ) Page 16 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 10 48 57 OQ208 20 59 00 15.3 297.1 6.8 37.3 12 2025 10 48 57 10 49 57 --- 21 00 00 15.1 297.3 6.9 37.3 60 2029 10 48 58 10 49 57 OQ208 21 00 00 15.1 297.3 6.9 37.3 -2 2029 No stop 10 53 57 --- 21 04 01 14.6 298.0 6.9 37.0 238 2044 10 49 58 10 55 31 J1532+2344 21 05 34 22.9 279.4 5.5 40.2 14 2044 10 55 31 10 56 31 =1530+239 21 06 34 22.7 279.6 5.5 40.2 60 2048 10 55 32 10 56 31 J1532+2344 21 06 34 22.7 279.6 5.5 40.2 -2 2048 No stop 10 57 01 =1530+239 21 07 04 22.6 279.7 5.6 40.2 28 2050 10 56 32 10 57 16 ARP220 21 07 20 22.7 279.2 5.5 40.2 2 2050 10 57 16 11 01 16 --- 21 11 21 22.2 279.9 5.6 40.1 240 2066 10 57 17 11 01 32 J1532+2344 21 11 36 22.0 280.5 5.6 40.1 1 2066 11 01 32 11 03 02 =1530+239 21 13 06 21.7 280.8 5.7 40.0 90 2071 11 01 33 11 03 17 ARP220 21 13 22 21.9 280.3 5.6 40.0 2 2071 11 03 17 11 07 17 --- 21 17 23 21.3 281.1 5.7 39.9 240 2087 11 03 18 11 07 33 J1532+2344 21 17 38 21.1 281.7 5.7 39.9 1 2087 11 07 33 11 08 33 =1530+239 21 18 38 20.9 281.9 5.7 39.8 60 2091 11 07 34 11 08 33 J1532+2344 21 18 38 20.9 281.9 5.7 39.8 -2 2091 No stop 11 09 03 =1530+239 21 19 09 20.9 282.0 5.8 39.8 28 2093 11 08 34 11 09 18 ARP220 21 19 24 21.0 281.4 5.7 39.8 2 2093 11 09 18 11 13 18 --- 21 23 25 20.4 282.2 5.8 39.7 240 2108 11 09 19 11 13 34 J1532+2344 21 23 40 20.2 282.8 5.8 39.7 1 2108 11 13 34 11 15 04 =1530+239 21 25 11 20.0 283.1 5.9 39.6 90 2114 11 13 35 11 15 19 ARP220 21 25 26 20.1 282.6 5.8 39.6 2 2114 11 15 19 11 19 19 --- 21 29 27 19.5 283.3 5.9 39.5 240 2129 11 15 20 11 19 35 J1532+2344 21 29 42 19.3 284.0 5.9 39.4 1 2129 11 19 35 11 20 35 =1530+239 21 30 43 19.2 284.1 5.9 39.4 60 2133 11 19 36 11 20 35 J1532+2344 21 30 43 19.2 284.1 5.9 39.4 -2 2133 No stop 11 21 05 =1530+239 21 31 13 19.1 284.2 6.0 39.4 28 2135 11 20 36 11 21 20 ARP220 21 31 28 19.2 283.7 5.9 39.4 2 2135 11 21 20 11 25 20 --- 21 35 29 18.6 284.5 6.0 39.3 240 2151 11 21 21 Schedule for DARNHALL (Code Da ) Page 17 6cm 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2023 Day 56 --- 11 25 36 J1532+2344 21 35 44 18.4 285.1 6.0 39.2 1 2151 11 25 36 11 27 06 =1530+239 21 37 15 18.2 285.4 6.1 39.1 90 2156 11 25 37 11 27 21 ARP220 21 37 30 18.3 284.9 6.0 39.2 2 2156 11 27 21 11 31 21 --- 21 41 31 17.7 285.6 6.1 39.0 240 2172 11 27 22 11 31 37 J1532+2344 21 41 46 17.6 286.2 6.1 38.9 1 2172 11 31 37 11 32 37 =1530+239 21 42 47 17.4 286.4 6.2 38.9 60 2176 11 31 38 11 32 37 J1532+2344 21 42 47 17.4 286.4 6.2 38.9 -2 2176 No stop 11 33 07 =1530+239 21 43 17 17.4 286.5 6.2 38.9 28 2178 11 32 38 11 33 22 ARP220 21 43 32 17.5 286.0 6.1 38.9 2 2178 11 33 22 11 37 22 --- 21 47 33 16.9 286.7 6.2 38.7 240 2193 11 33 23 11 37 38 J1532+2344 21 47 48 16.7 287.3 6.2 38.7 1 2193 11 37 38 11 39 08 =1530+239 21 49 19 16.5 287.6 6.3 38.6 90 2199 11 37 39 11 39 23 ARP220 21 49 34 16.6 287.1 6.2 38.7 2 2199 11 39 23 11 43 23 --- 21 53 35 16.0 287.9 6.3 38.5 240 2214 11 39 24 11 43 39 J1532+2344 21 53 50 15.8 288.5 6.3 38.4 1 2214 11 43 39 11 45 09 =1530+239 21 55 21 15.6 288.7 6.4 38.3 90 2220 11 43 40 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess123.C2048glob --- 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: 25 Station: DARNHALL Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 2 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 5664.00 5664.00 Net SB= U U IF SB = L L Pol. = RCP LCP BBC = 1 9 BBC SB= L L IF = A1 B1 The following frequency sets based on these setups were used. Frequency Set: 13 Setup file default. Used with PCAL = off LO sum= 4868.00 4868.00 BBC fr= 796.00 796.00 Bandwd= 64.00 64.00 Matching frequency sets: 13 14 15 16 17 Track assignments are: track1= 1, 2 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 57.471629 0.00 23 40 07.75728 * 23 30 11.33000 23 25 19.21788 0.00 From catalog imbedded in main SCHED input file. * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 13.126184 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 23 12.11724 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 03.247708 0.24 J1407+2827 28 41 29.23515 * 28 27 14.69019 28 20 25.36264 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 17 59.616614 0.01 * J1516+1932 19 43 10.94247 * 19 32 12.99203 19 26 54.09145 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 46.540710 0.08 * J1532+2344 23 54 09.32913 * 23 44 05.26796 23 39 09.62699 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.C2048glob 1 2 3 4 5 6 7 8 9 10 11 12 + 9.667 1337.178 3C286 sess123.C2048glob 18 0.067 0.000 OQ208 sess123.C2048glob 1 2 3 4 5 6 7 8 9 10 11 12 + 1.417 185.263 J1516+1932 sess123.C2048glob 1 2 3 4 5 6 7 8 9 10 11 12 + 0.083 11.333 J1532+2344 sess123.C2048glob 1 2 3 4 5 6 7 8 9 10 11 12 + 4.089 538.617 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 106.6 3C286 133.2 OQ208 126.1 J1516+1932 110.6 J1532+2344 107.1 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