COVER INFORMATION Station: HART (Code Hh ) 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 HART (Code Hh ) 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: 4772.00 4772.00 4772.00 4772.00 4836.00 4836.00 4836.00 4836.00 4900.00 4900.00 4900.00 4900.00 4964.00 4964.00 4964.00 4964.00 Next BBC frequencies: 172.00 172.00 172.00 172.00 236.00 236.00 236.00 236.00 300.00 300.00 300.00 300.00 364.00 364.00 364.00 364.00 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 00 00 00 J1516+1932 12 09 09 25.5 50.1 -3.1 0.0 0 0 00 00 00 00 05 00 =1514+197 12 14 10 26.4 49.2 -3.1 0.0 300 77 00 00 01 00 07 23 OQ208 12 16 33 29.5 28.2 -1.9 0.0 81 77 00 07 23 00 12 23 --- 12 21 34 30.0 27.1 -1.8 0.0 300 155 00 07 24 00 14 35 J1532+2344 12 23 46 22.4 46.9 -3.2 0.0 62 155 00 14 35 00 16 05 =1530+239 12 25 16 22.7 46.7 -3.1 0.0 90 178 00 14 36 00 16 31 ARP220 12 25 43 22.5 47.2 -3.2 0.0 1 178 00 16 31 00 20 31 --- 12 29 43 23.2 46.5 -3.1 0.0 240 240 00 16 32 00 20 58 J1532+2344 12 30 10 23.5 45.8 -3.1 0.0 1 240 00 20 58 00 22 28 =1530+239 12 31 41 23.7 45.6 -3.0 0.0 90 263 00 20 59 00 22 54 ARP220 12 32 07 23.6 46.0 -3.1 0.0 1 263 00 22 54 00 26 54 --- 12 36 08 24.2 45.3 -3.0 0.0 240 325 00 22 55 00 27 21 J1532+2344 12 36 35 24.5 44.7 -3.0 0.0 1 325 00 27 21 00 28 51 =1530+239 12 38 05 24.7 44.4 -2.9 0.0 90 348 00 27 22 00 29 18 ARP220 12 38 32 24.6 44.9 -3.0 0.0 1 348 00 29 18 00 33 18 --- 12 42 32 25.3 44.1 -2.9 0.0 240 410 00 29 19 00 33 45 J1532+2344 12 42 59 25.5 43.5 -2.8 0.0 1 410 00 33 45 00 35 15 =1530+239 12 44 29 25.7 43.2 -2.8 0.0 90 433 00 33 46 00 35 41 ARP220 12 44 56 25.6 43.7 -2.9 0.0 1 433 00 35 41 00 39 41 --- 12 48 57 26.2 42.9 -2.8 0.0 240 495 00 35 42 00 40 08 J1532+2344 12 49 24 26.5 42.3 -2.7 0.0 1 495 00 40 08 00 41 38 =1530+239 12 50 54 26.7 42.0 -2.7 0.0 90 518 00 40 09 00 42 04 ARP220 12 51 20 26.6 42.5 -2.7 0.0 1 518 00 42 04 00 46 04 --- 12 55 21 27.2 41.7 -2.7 0.0 240 580 00 42 05 00 46 31 J1532+2344 12 55 48 27.4 41.0 -2.6 0.0 1 580 00 46 31 00 48 01 =1530+239 12 57 18 27.7 40.7 -2.6 0.0 90 603 00 46 32 Schedule for HART (Code Hh ) 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 48 28 ARP220 12 57 45 27.6 41.2 -2.6 0.0 1 603 00 48 28 00 52 28 --- 13 01 45 28.2 40.4 -2.6 0.0 240 665 00 48 29 00 52 55 J1532+2344 13 02 12 28.4 39.7 -2.5 0.0 1 665 00 52 55 00 54 25 =1530+239 13 03 43 28.6 39.4 -2.5 0.0 90 688 00 52 56 00 54 51 ARP220 13 04 09 28.5 40.0 -2.5 0.0 1 688 00 54 51 00 58 51 --- 13 08 10 29.1 39.1 -2.5 0.0 240 750 00 54 52 00 59 18 J1532+2344 13 08 37 29.3 38.4 -2.4 0.0 1 750 00 59 18 01 00 48 =1530+239 13 10 07 29.5 38.1 -2.4 0.0 90 773 00 59 19 01 01 14 ARP220 13 10 33 29.4 38.6 -2.4 0.0 1 773 01 01 14 01 05 14 --- 13 14 34 30.0 37.8 -2.4 0.0 240 835 01 01 15 01 05 41 J1532+2344 13 15 01 30.2 37.1 -2.3 0.0 1 835 01 05 41 01 07 11 =1530+239 13 16 31 30.4 36.8 -2.3 0.0 90 858 01 05 42 01 09 26 OQ208 13 18 46 34.5 13.2 -0.8 0.0 64 858 01 09 26 01 14 26 --- 13 23 47 34.7 11.9 -0.7 0.0 300 935 01 09 27 01 16 35 J1532+2344 13 25 56 31.6 34.7 -2.1 0.0 60 935 01 16 35 01 18 05 =1530+239 13 27 26 31.8 34.4 -2.1 0.0 90 958 01 16 36 01 18 31 ARP220 13 27 53 31.8 34.9 -2.1 0.0 1 958 01 18 31 01 22 31 --- 13 31 54 32.3 34.0 -2.1 0.0 240 1020 01 18 32 01 22 58 J1532+2344 13 32 20 32.4 33.3 -2.0 0.0 1 1020 01 22 58 01 24 28 =1530+239 13 33 51 32.6 32.9 -2.0 0.0 90 1043 01 22 59 01 24 54 ARP220 13 34 17 32.6 33.5 -2.0 0.0 1 1043 01 24 54 01 28 54 --- 13 38 18 33.1 32.5 -2.0 0.0 240 1105 01 24 55 01 29 21 J1532+2344 13 38 45 33.2 31.8 -1.9 0.0 1 1105 01 29 21 01 30 51 =1530+239 13 40 15 33.4 31.4 -1.9 0.0 90 1128 01 29 22 01 31 17 ARP220 13 40 41 33.3 32.0 -1.9 0.0 1 1128 01 31 17 01 35 17 --- 13 44 42 33.8 31.0 -1.9 0.0 240 1190 01 31 18 01 35 44 J1532+2344 13 45 09 33.9 30.3 -1.8 0.0 1 1190 01 35 44 01 37 14 =1530+239 13 46 39 34.1 29.9 -1.8 0.0 90 1213 01 35 45 01 37 41 ARP220 13 47 06 34.1 30.4 -1.8 0.0 1 1213 01 37 41 01 41 41 --- 13 51 06 34.5 29.5 -1.7 0.0 240 1275 01 37 42 Schedule for HART (Code Hh ) 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 42 07 J1532+2344 13 51 33 34.6 28.7 -1.7 0.0 1 1275 01 42 07 01 43 37 =1530+239 13 53 03 34.8 28.3 -1.7 0.0 90 1298 01 42 08 01 44 04 ARP220 13 53 30 34.8 28.9 -1.7 0.0 1 1298 01 44 04 01 48 04 --- 13 57 30 35.2 27.9 -1.6 0.0 240 1360 01 44 05 01 48 30 J1532+2344 13 57 57 35.3 27.1 -1.6 0.0 1 1360 01 48 30 01 50 00 =1530+239 13 59 27 35.5 26.7 -1.6 0.0 90 1384 01 48 31 01 50 27 ARP220 13 59 54 35.5 27.3 -1.6 0.0 1 1384 01 50 27 01 54 27 --- 14 03 54 35.9 26.3 -1.5 0.0 240 1445 01 50 28 01 54 53 J1532+2344 14 04 21 35.9 25.5 -1.5 0.0 1 1445 01 54 53 01 56 23 =1530+239 14 05 52 36.1 25.1 -1.5 0.0 90 1469 01 54 54 01 56 50 ARP220 14 06 18 36.1 25.7 -1.5 0.0 1 1469 01 56 50 02 00 50 --- 14 10 19 36.5 24.6 -1.4 0.0 240 1530 01 56 51 02 01 16 J1532+2344 14 10 45 36.5 23.8 -1.4 0.0 1 1530 02 01 16 02 02 46 =1530+239 14 12 16 36.7 23.4 -1.4 0.0 90 1554 02 01 17 02 03 13 ARP220 14 12 42 36.7 24.0 -1.4 0.0 1 1554 02 03 13 02 07 13 --- 14 16 43 37.1 22.9 -1.3 0.0 240 1615 02 03 14 02 07 39 J1532+2344 14 17 09 37.1 22.1 -1.3 0.0 1 1615 02 07 39 02 09 09 =1530+239 14 18 40 37.2 21.7 -1.3 0.0 90 1639 02 07 40 02 11 15 OQ208 14 20 46 35.7 356.6 0.2 0.0 55 1639 02 11 15 02 16 15 --- 14 25 46 35.6 355.2 0.3 0.0 300 1716 02 11 16 02 18 16 J1532+2344 14 27 47 37.9 19.3 -1.1 0.0 51 1716 02 18 16 02 19 46 =1530+239 14 29 18 38.1 18.8 -1.1 0.0 90 1739 02 18 17 02 20 12 ARP220 14 29 44 38.1 19.4 -1.1 0.0 1 1739 02 20 12 02 24 12 --- 14 33 44 38.4 18.3 -1.0 0.0 240 1801 02 20 13 02 24 38 J1532+2344 14 34 11 38.4 17.5 -1.0 0.0 1 1801 02 24 38 02 26 08 =1530+239 14 35 41 38.5 17.1 -1.0 0.0 90 1824 02 24 39 02 26 34 ARP220 14 36 07 38.6 17.6 -1.0 0.0 1 1824 02 26 34 02 30 34 --- 14 40 08 38.9 16.5 -0.9 0.0 240 1886 02 26 35 02 31 01 J1532+2344 14 40 35 38.8 15.7 -0.9 0.0 1 1886 02 31 01 02 32 31 =1530+239 14 42 05 38.9 15.3 -0.9 0.0 90 1909 02 31 02 Schedule for HART (Code Hh ) 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 32 57 ARP220 14 42 31 39.0 15.8 -0.9 0.0 1 1909 02 32 57 02 36 57 --- 14 46 32 39.3 14.7 -0.8 0.0 240 1971 02 32 58 02 37 24 J1532+2344 14 46 59 39.2 13.9 -0.8 0.0 1 1971 02 37 24 02 38 54 =1530+239 14 48 29 39.3 13.4 -0.8 0.0 90 1994 02 37 25 02 39 20 ARP220 14 48 55 39.4 14.0 -0.8 0.0 1 1994 02 39 20 02 43 20 --- 14 52 56 39.6 12.8 -0.7 0.0 240 2056 02 39 21 02 43 47 J1532+2344 14 53 23 39.5 12.0 -0.7 0.0 1 2056 02 43 47 02 45 17 =1530+239 14 54 53 39.6 11.6 -0.6 0.0 90 2079 02 43 48 02 45 43 ARP220 14 55 19 39.7 12.1 -0.7 0.0 1 2079 02 45 43 02 49 43 --- 14 59 20 39.9 11.0 -0.6 0.0 240 2141 02 45 44 02 50 10 J1532+2344 14 59 47 39.8 10.1 -0.6 0.0 2 2141 02 50 10 02 51 40 =1530+239 15 01 17 39.8 9.7 -0.5 0.0 90 2164 02 50 11 02 52 06 ARP220 15 01 43 40.0 10.3 -0.6 0.0 1 2164 02 52 06 02 56 06 --- 15 05 44 40.1 9.1 -0.5 0.0 240 2226 02 52 07 02 56 34 J1532+2344 15 06 12 40.0 8.3 -0.5 0.0 2 2226 02 56 34 02 58 04 =1530+239 15 07 42 40.1 7.8 -0.4 0.0 90 2249 02 56 35 02 58 30 ARP220 15 08 08 40.2 8.4 -0.5 0.0 1 2249 02 58 30 03 02 30 --- 15 12 09 40.4 7.2 -0.4 0.0 240 2311 02 58 31 03 02 58 J1532+2344 15 12 37 40.2 6.3 -0.4 0.0 2 2311 03 02 58 03 04 28 =1530+239 15 14 07 40.2 5.9 -0.3 0.0 90 2334 03 02 59 03 04 54 ARP220 15 14 34 40.4 6.5 -0.4 0.0 1 2334 03 04 54 03 08 54 --- 15 18 34 40.5 5.2 -0.3 0.0 240 2396 03 04 55 03 09 22 J1532+2344 15 19 02 40.3 4.4 -0.2 0.0 2 2396 03 09 22 03 10 52 =1530+239 15 20 33 40.4 4.0 -0.2 0.0 90 2419 03 09 23 03 13 10 OQ208 15 22 50 32.9 340.4 1.2 0.0 67 2419 03 13 10 03 18 10 --- 15 27 51 32.5 339.1 1.3 0.0 300 2497 03 13 11 03 20 25 J1532+2344 15 30 07 40.4 1.1 -0.1 0.0 66 2497 03 20 25 03 21 55 =1530+239 15 31 37 40.5 0.7 -0.0 0.0 90 2520 03 20 26 03 22 20 ARP220 15 32 02 40.7 1.2 -0.1 0.0 0 2520 03 22 20 03 26 20 --- 15 36 03 40.7 360.0 0.0 0.0 240 2582 03 22 21 Schedule for HART (Code Hh ) 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 26 46 J1532+2344 15 36 29 40.5 359.2 0.0 0.0 0 2582 03 26 46 03 28 16 =1530+239 15 37 59 40.4 358.7 0.1 0.0 90 2605 03 26 47 03 28 43 ARP220 15 38 27 40.7 359.2 0.0 0.0 2 2605 03 28 43 03 32 43 --- 15 42 27 40.7 358.0 0.1 0.0 240 2667 03 28 44 03 33 13 J1532+2344 15 42 57 40.4 357.2 0.2 0.0 4 2667 03 33 13 03 34 43 =1530+239 15 44 27 40.4 356.8 0.2 0.0 90 2690 03 33 14 03 35 11 ARP220 15 44 55 40.6 357.3 0.1 0.0 2 2690 03 35 11 03 39 11 --- 15 48 56 40.6 356.1 0.2 0.0 240 2752 03 35 12 03 39 40 J1532+2344 15 49 25 40.3 355.3 0.3 0.0 4 2752 03 39 40 03 41 10 =1530+239 15 50 56 40.3 354.8 0.3 0.0 90 2775 03 39 41 03 41 39 ARP220 15 51 24 40.5 355.3 0.3 0.0 3 2775 03 41 39 03 45 39 --- 15 55 25 40.5 354.1 0.3 0.0 240 2837 03 41 40 03 46 09 J1532+2344 15 55 55 40.2 353.4 0.4 0.0 4 2837 03 46 09 03 47 39 =1530+239 15 57 25 40.1 352.9 0.4 0.0 90 2860 03 46 10 03 48 07 ARP220 15 57 54 40.4 353.4 0.4 0.0 3 2860 03 48 07 03 52 07 --- 16 01 54 40.3 352.2 0.4 0.0 240 2922 03 48 08 03 52 37 J1532+2344 16 02 25 40.0 351.4 0.5 0.0 5 2922 03 52 37 03 54 07 =1530+239 16 03 55 39.9 351.0 0.5 0.0 90 2945 03 52 38 03 54 36 ARP220 16 04 24 40.2 351.4 0.5 0.0 3 2945 03 54 36 03 58 36 --- 16 08 24 40.1 350.3 0.5 0.0 240 3007 03 54 37 03 59 07 J1532+2344 16 08 55 39.7 349.5 0.6 0.0 5 3007 03 59 07 04 00 37 =1530+239 16 10 25 39.7 349.1 0.6 0.0 90 3030 03 59 08 04 01 06 ARP220 16 10 54 40.0 349.5 0.6 0.0 4 3030 04 01 06 04 05 06 --- 16 14 55 39.8 348.3 0.6 0.0 240 3092 04 01 07 04 05 37 J1532+2344 16 15 26 39.4 347.6 0.7 0.0 5 3092 04 05 37 04 07 07 =1530+239 16 16 56 39.4 347.2 0.7 0.0 90 3115 04 05 38 04 07 36 ARP220 16 17 26 39.7 347.6 0.7 0.0 4 3115 04 07 36 04 11 36 --- 16 21 27 39.5 346.4 0.8 0.0 240 3177 04 07 37 04 12 08 J1532+2344 16 21 58 39.1 345.7 0.8 0.0 6 3177 04 12 08 04 13 38 =1530+239 16 23 28 39.0 345.3 0.8 0.0 90 3200 04 12 09 Schedule for HART (Code Hh ) 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 16 35 OQ208 16 26 26 26.4 326.1 2.3 0.0 107 3200 04 16 35 04 21 35 --- 16 31 27 25.8 325.1 2.4 0.0 300 3277 04 16 36 04 24 26 J1532+2344 16 34 18 38.3 342.3 1.0 0.0 101 3277 04 24 26 04 25 56 =1530+239 16 35 48 38.2 341.8 1.0 0.0 90 3300 04 24 27 04 26 26 ARP220 16 36 19 38.6 342.2 1.0 0.0 5 3300 04 26 26 04 30 26 --- 16 40 19 38.3 341.1 1.1 0.0 240 3362 04 26 27 04 30 58 J1532+2344 16 40 51 37.9 340.4 1.1 0.0 6 3362 04 30 58 04 32 28 =1530+239 16 42 22 37.8 340.0 1.1 0.0 90 3385 04 30 59 04 32 58 ARP220 16 42 52 38.1 340.4 1.1 0.0 5 3385 04 32 58 04 36 58 --- 16 46 53 37.8 339.3 1.2 0.0 240 3447 04 32 59 04 37 30 J1532+2344 16 47 25 37.4 338.7 1.2 0.0 7 3447 04 37 30 04 39 00 =1530+239 16 48 55 37.2 338.3 1.3 0.0 90 3470 04 37 31 04 39 31 ARP220 16 49 26 37.6 338.6 1.2 0.0 5 3470 04 39 31 04 43 31 --- 16 53 26 37.2 337.5 1.3 0.0 240 3532 04 39 32 04 44 03 J1532+2344 16 53 59 36.8 336.9 1.3 0.0 7 3532 04 44 03 04 45 33 =1530+239 16 55 29 36.7 336.5 1.4 0.0 90 3555 04 44 04 04 46 04 ARP220 16 56 00 37.0 336.8 1.3 0.0 5 3555 04 46 04 04 50 04 --- 17 00 01 36.7 335.8 1.4 0.0 240 3617 04 46 05 04 50 37 J1532+2344 17 00 33 36.2 335.2 1.4 0.0 7 3617 04 50 37 04 52 07 =1530+239 17 02 04 36.1 334.8 1.5 0.0 90 3640 04 50 38 04 52 37 ARP220 17 02 34 36.4 335.1 1.4 0.0 5 3640 04 52 37 04 56 37 --- 17 06 35 36.0 334.1 1.5 0.0 240 3702 04 52 38 04 57 10 J1532+2344 17 07 08 35.6 333.5 1.6 0.0 7 3702 04 57 10 04 58 40 =1530+239 17 08 38 35.4 333.1 1.6 0.0 90 3725 04 57 11 04 59 11 ARP220 17 09 09 35.8 333.4 1.6 0.0 5 3725 04 59 11 05 03 11 --- 17 13 10 35.4 332.4 1.6 0.0 240 3787 04 59 12 05 03 44 J1532+2344 17 13 43 34.9 331.9 1.7 0.0 7 3787 05 03 44 05 05 14 =1530+239 17 15 13 34.7 331.5 1.7 0.0 90 3810 05 03 45 05 05 45 ARP220 17 15 44 35.1 331.8 1.7 0.0 6 3810 05 05 45 05 09 45 --- 17 19 45 34.7 330.8 1.7 0.0 240 3872 05 05 46 Schedule for HART (Code Hh ) 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 10 18 J1532+2344 17 20 18 34.2 330.3 1.8 0.0 7 3872 05 10 18 05 11 48 =1530+239 17 21 48 34.0 329.9 1.8 0.0 90 3895 05 10 19 05 12 19 ARP220 17 22 19 34.4 330.2 1.8 0.0 6 3895 05 12 19 05 16 19 --- 17 26 20 33.9 329.2 1.8 0.0 240 3957 05 12 20 05 16 52 J1532+2344 17 26 53 33.4 328.7 1.9 0.0 7 3957 05 16 52 05 18 22 =1530+239 17 28 23 33.2 328.3 1.9 0.0 90 3981 05 16 53 05 21 26 OQ208 17 31 28 17.0 314.5 3.4 0.0 115 3981 05 21 26 05 26 26 --- 17 36 29 16.2 313.7 3.5 0.0 300 4058 05 21 27 05 29 19 J1532+2344 17 39 22 31.9 325.8 2.1 0.0 103 4058 05 29 19 05 30 49 =1530+239 17 40 53 31.7 325.5 2.1 0.0 90 4081 05 29 20 05 31 20 ARP220 17 41 24 32.1 325.7 2.1 0.0 6 4081 05 31 20 05 35 20 --- 17 45 24 31.6 324.8 2.2 0.0 240 4143 05 31 21 05 35 53 J1532+2344 17 45 57 31.0 324.3 2.2 0.0 7 4143 05 35 53 05 37 23 =1530+239 17 47 28 30.8 324.0 2.2 0.0 90 4166 05 35 54 05 37 54 ARP220 17 47 59 31.2 324.2 2.2 0.0 6 4166 05 37 54 05 41 54 --- 17 51 59 30.7 323.3 2.3 0.0 240 4228 05 37 55 05 42 27 J1532+2344 17 52 32 30.2 322.9 2.3 0.0 7 4228 05 42 27 05 43 57 =1530+239 17 54 02 30.0 322.6 2.3 0.0 90 4251 05 42 28 05 44 28 ARP220 17 54 33 30.4 322.8 2.3 0.0 6 4251 05 44 28 05 48 28 --- 17 58 34 29.8 321.9 2.4 0.0 240 4313 05 44 29 05 49 00 J1532+2344 17 59 07 29.3 321.5 2.4 0.0 7 4313 05 49 00 05 50 30 =1530+239 18 00 37 29.0 321.2 2.4 0.0 90 4336 05 49 01 05 51 01 ARP220 18 01 08 29.5 321.4 2.4 0.0 5 4336 05 51 01 05 55 01 --- 18 05 08 28.9 320.6 2.5 0.0 240 4398 05 51 02 05 55 34 J1532+2344 18 05 41 28.3 320.2 2.5 0.0 7 4398 05 55 34 05 57 04 =1530+239 18 07 11 28.1 319.9 2.6 0.0 90 4421 05 55 35 05 57 34 ARP220 18 07 42 28.5 320.1 2.5 0.0 5 4421 05 57 34 06 01 34 --- 18 11 43 27.9 319.2 2.6 0.0 240 4483 05 57 35 06 02 07 J1532+2344 18 12 15 27.4 318.9 2.6 0.0 7 4483 06 02 07 06 03 37 =1530+239 18 13 45 27.1 318.6 2.7 0.0 90 4506 06 02 08 Schedule for HART (Code Hh ) 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 04 07 ARP220 18 14 16 27.6 318.7 2.6 0.0 5 4506 06 04 07 06 08 07 --- 18 18 17 27.0 318.0 2.7 0.0 240 4568 06 04 08 06 08 39 J1532+2344 18 18 49 26.4 317.6 2.8 0.0 6 4568 06 08 39 06 10 09 =1530+239 18 20 19 26.1 317.3 2.8 0.0 90 4591 06 08 40 06 10 29 J1532+2344 18 20 39 26.1 317.3 2.8 0.0 -1 4591 06 10 29 06 11 29 =1530+239 18 21 39 25.9 317.1 2.8 0.0 59 4607 06 10 30 06 11 29 J1532+2344 18 21 39 25.9 317.1 2.8 0.0 -20 4607 No stop 06 11 59 =1530+239 18 22 10 25.9 317.0 2.8 0.0 10 4614 06 11 30 06 12 30 ARP220 18 22 40 26.3 317.1 2.8 0.0 5 4614 06 12 30 06 16 30 --- 18 26 41 25.7 316.4 2.8 0.0 240 4676 06 12 31 06 17 02 J1532+2344 18 27 13 25.1 316.0 2.9 0.0 6 4676 06 17 02 06 18 32 =1530+239 18 28 43 24.8 315.7 2.9 0.0 90 4699 06 17 03 06 19 02 ARP220 18 29 14 25.3 315.9 2.9 0.0 5 4699 06 19 02 06 23 02 --- 18 33 14 24.6 315.1 3.0 0.0 240 4761 06 19 03 06 23 34 J1532+2344 18 33 46 24.1 314.8 3.0 0.0 6 4761 06 23 34 06 24 34 =1530+239 18 34 46 23.9 314.6 3.0 0.0 60 4777 06 23 35 06 24 34 J1532+2344 18 34 46 23.9 314.6 3.0 0.0 -20 4777 No stop 06 25 04 =1530+239 18 35 16 23.8 314.6 3.0 0.0 10 4784 06 24 35 06 25 34 ARP220 18 35 47 24.2 314.7 3.0 0.0 5 4784 06 25 34 06 29 34 --- 18 39 47 23.6 314.0 3.1 0.0 240 4846 06 25 35 06 30 06 J1532+2344 18 40 19 23.0 313.7 3.1 0.0 6 4846 06 30 06 06 31 36 =1530+239 18 41 49 22.8 313.4 3.1 0.0 90 4869 06 30 07 06 32 06 ARP220 18 42 19 23.2 313.5 3.1 0.0 5 4869 06 32 06 06 36 06 --- 18 46 20 22.5 312.8 3.2 0.0 240 4931 06 32 07 06 36 37 J1532+2344 18 46 51 21.9 312.5 3.2 0.0 6 4931 06 36 37 06 38 07 =1530+239 18 48 22 21.7 312.3 3.2 0.0 90 4954 06 36 38 06 47 58 J1532+2344 18 58 14 20.0 310.6 3.4 0.0 569 4954 06 47 58 06 48 58 =1530+239 18 59 14 19.8 310.5 3.4 0.0 60 4970 06 47 59 06 48 58 J1532+2344 18 59 14 19.8 310.5 3.4 0.0 -20 4970 No stop 06 49 28 =1530+239 18 59 44 19.8 310.4 3.4 0.0 10 4978 06 48 59 Schedule for HART (Code Hh ) 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 49 53 ARP220 19 00 10 20.2 310.5 3.4 0.0 0 4978 06 49 53 06 53 53 --- 19 04 10 19.5 309.9 3.5 0.0 240 5039 06 49 54 06 54 19 J1532+2344 19 04 36 18.9 309.6 3.5 0.0 0 5039 06 54 19 06 55 49 =1530+239 19 06 06 18.7 309.4 3.5 0.0 90 5063 06 54 20 06 56 19 ARP220 19 06 36 19.1 309.5 3.5 0.0 4 5063 06 56 19 07 00 19 --- 19 10 37 18.4 308.8 3.6 0.0 240 5124 06 56 20 07 00 49 J1532+2344 19 11 07 17.8 308.6 3.6 0.0 5 5124 07 00 49 07 02 19 =1530+239 19 12 38 17.5 308.4 3.6 0.0 90 5148 07 00 50 07 02 39 J1532+2344 19 12 58 17.5 308.3 3.7 0.0 -1 5148 07 02 39 07 03 39 =1530+239 19 13 58 17.3 308.2 3.7 0.0 59 5163 07 02 40 07 03 39 J1532+2344 19 13 58 17.3 308.2 3.7 0.0 -20 5163 No stop 07 04 09 =1530+239 19 14 28 17.2 308.1 3.7 0.0 10 5171 07 03 40 07 04 39 ARP220 19 14 57 17.6 308.2 3.7 0.0 4 5171 07 04 39 07 08 39 --- 19 18 58 16.9 307.6 3.7 0.0 240 5233 07 04 40 07 09 09 J1532+2344 19 19 29 16.3 307.3 3.8 0.0 5 5233 07 09 09 07 10 39 =1530+239 19 20 59 16.0 307.1 3.8 0.0 90 5256 07 09 10 07 11 08 ARP220 19 21 28 16.5 307.2 3.8 0.0 4 5256 07 11 08 07 15 08 --- 19 25 29 15.7 306.6 3.8 0.0 240 5318 07 11 09 07 15 39 J1532+2344 19 25 59 15.1 306.4 3.9 0.0 5 5318 07 15 39 07 16 39 =1530+239 19 26 59 14.9 306.2 3.9 0.0 60 5333 07 15 40 07 16 39 J1532+2344 19 26 59 14.9 306.2 3.9 0.0 -20 5333 No stop 07 17 09 =1530+239 19 27 30 14.8 306.2 3.9 0.0 10 5341 07 16 40 07 17 38 ARP220 19 27 59 15.3 306.2 3.9 0.0 4 5341 07 17 38 07 21 38 --- 19 31 59 14.6 305.6 3.9 0.0 240 5403 07 17 39 07 22 08 J1532+2344 19 32 30 13.9 305.4 4.0 0.0 4 5403 07 22 08 07 23 38 =1530+239 19 34 00 13.7 305.2 4.0 0.0 90 5426 07 22 09 07 24 07 ARP220 19 34 29 14.1 305.3 4.0 0.0 4 5426 07 24 07 07 28 07 --- 19 38 30 13.4 304.7 4.0 0.0 240 5488 07 24 08 07 28 37 J1532+2344 19 39 00 12.7 304.5 4.1 0.0 4 5488 07 28 37 07 29 37 =1530+239 19 40 00 12.6 304.4 4.1 0.0 60 5503 07 28 38 Schedule for HART (Code Hh ) 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 29 37 J1532+2344 19 40 00 12.6 304.4 4.1 0.0 -20 5503 No stop 07 30 07 =1530+239 19 40 30 12.5 304.3 4.1 0.0 10 5511 07 29 38 07 30 36 ARP220 19 40 59 12.9 304.4 4.1 0.0 3 5511 07 30 36 07 34 36 --- 19 45 00 12.2 303.8 4.2 0.0 240 5573 07 30 37 07 35 06 J1532+2344 19 45 29 11.5 303.7 4.2 0.0 4 5573 07 35 06 07 36 36 =1530+239 19 47 00 11.2 303.4 4.2 0.0 90 5596 07 35 07 07 37 04 ARP220 19 47 29 11.7 303.5 4.2 0.0 3 5596 07 37 04 07 41 04 --- 19 51 29 10.9 302.9 4.3 0.0 240 5658 07 37 05 07 41 34 J1532+2344 19 51 59 10.3 302.8 4.3 0.0 4 5658 07 41 34 07 43 04 =1530+239 19 53 29 10.0 302.6 4.3 0.0 90 5681 07 41 35 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess123.C2048glob Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: hh6cm Values confirmed by E-mail Jonathan Quick 20140219 (CR) ****** Only 256.00 of 512.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 15 Station: HART Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 11 Setup file default. Used with PCAL = off LO sum= 4772.00 4772.00 4772.00 4772.00 4836.00 4836.00 4836.00 4836.00 4900.00 4900.00 4900.00 4900.00 4964.00 4964.00 4964.00 4964.00 BBC fr= 172.00 172.00 172.00 172.00 236.00 236.00 236.00 236.00 300.00 300.00 300.00 300.00 364.00 364.00 364.00 364.00 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 11 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 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