COVER INFORMATION Station: URUMQI (Code Ur ) 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 URUMQI (Code Ur ) 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: 152.00 152.00 152.00 152.00 216.00 216.00 216.00 216.00 280.00 280.00 280.00 280.00 344.00 344.00 344.00 344.00 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 16 07 07 63.9 207.1 0.8 20.5 0 0 00 00 00 00 05 00 =1514+197 16 12 08 63.4 209.6 0.9 22.3 300 77 00 00 01 00 07 23 OQ208 16 14 32 60.5 249.6 2.1 50.6 99 77 00 07 23 00 12 23 --- 16 19 32 59.7 251.0 2.2 51.2 300 154 00 07 24 00 14 35 J1532+2344 16 21 44 67.9 210.3 0.8 23.6 86 154 00 14 35 00 16 05 =1530+239 16 23 15 67.7 211.2 0.8 24.2 90 177 00 14 36 00 16 31 ARP220 16 23 41 67.7 210.0 0.8 23.3 21 177 00 16 31 00 20 31 --- 16 27 42 67.3 212.1 0.9 24.9 240 238 00 16 32 00 20 58 J1532+2344 16 28 09 67.2 213.8 0.9 26.2 22 238 00 20 58 00 22 28 =1530+239 16 29 39 67.1 214.6 0.9 26.7 90 262 00 20 59 00 22 54 ARP220 16 30 05 67.1 213.4 0.9 25.8 21 262 00 22 54 00 26 54 --- 16 34 06 66.6 215.5 1.0 27.4 240 323 00 22 55 00 27 21 J1532+2344 16 34 33 66.6 217.1 1.0 28.6 22 323 00 27 21 00 28 51 =1530+239 16 36 03 66.4 217.9 1.0 29.1 90 346 00 27 22 00 29 18 ARP220 16 36 30 66.4 216.7 1.0 28.2 21 346 00 29 18 00 33 18 --- 16 40 30 65.9 218.7 1.1 29.7 240 408 00 29 19 00 33 45 J1532+2344 16 40 57 65.8 220.3 1.1 30.8 22 408 00 33 45 00 35 15 =1530+239 16 42 28 65.7 221.0 1.1 31.3 90 431 00 33 46 00 35 41 ARP220 16 42 54 65.7 219.9 1.1 30.5 21 431 00 35 41 00 39 41 --- 16 46 55 65.2 221.8 1.2 31.8 240 492 00 35 42 00 40 08 J1532+2344 16 47 22 65.1 223.3 1.2 32.9 22 492 00 40 08 00 41 38 =1530+239 16 48 52 64.9 224.0 1.3 33.4 90 515 00 40 09 00 42 04 ARP220 16 49 19 64.9 222.9 1.2 32.6 21 515 00 42 04 00 46 04 --- 16 53 19 64.4 224.7 1.3 33.8 240 577 00 42 05 00 46 31 J1532+2344 16 53 46 64.2 226.1 1.3 34.8 22 577 00 46 31 00 48 01 =1530+239 16 55 16 64.1 226.8 1.4 35.3 90 600 00 46 32 Schedule for URUMQI (Code Ur ) 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 16 55 43 64.1 225.7 1.3 34.5 21 600 00 48 28 00 52 28 --- 16 59 44 63.6 227.4 1.4 35.6 240 662 00 48 29 00 52 55 J1532+2344 17 00 11 63.4 228.8 1.4 36.6 22 662 00 52 55 00 54 25 =1530+239 17 01 41 63.2 229.5 1.5 37.0 90 685 00 52 56 00 54 51 ARP220 17 02 07 63.2 228.4 1.4 36.3 21 685 00 54 51 00 58 51 --- 17 06 08 62.7 230.1 1.5 37.3 240 746 00 54 52 00 59 18 J1532+2344 17 06 35 62.5 231.4 1.5 38.3 22 746 00 59 18 01 00 48 =1530+239 17 08 05 62.3 232.0 1.6 38.6 90 769 00 59 19 01 01 14 ARP220 17 08 32 62.4 231.0 1.5 37.9 21 769 01 01 14 01 05 14 --- 17 12 32 61.8 232.5 1.6 38.9 240 831 01 01 15 01 05 41 J1532+2344 17 12 59 61.6 233.8 1.7 39.8 22 831 01 05 41 01 07 11 =1530+239 17 14 30 61.4 234.4 1.7 40.1 90 854 01 05 42 01 09 26 OQ208 17 16 44 49.5 264.1 3.1 55.1 101 854 01 09 26 01 14 26 --- 17 21 45 48.6 265.0 3.2 55.2 300 931 01 09 27 01 16 35 J1532+2344 17 23 54 59.9 237.7 1.8 42.0 97 931 01 16 35 01 18 05 =1530+239 17 25 25 59.7 238.2 1.9 42.3 90 954 01 16 36 01 18 31 ARP220 17 25 51 59.8 237.3 1.8 41.7 21 954 01 18 31 01 22 31 --- 17 29 52 59.2 238.7 1.9 42.5 240 1015 01 18 32 01 22 58 J1532+2344 17 30 19 58.9 239.8 1.9 43.2 22 1015 01 22 58 01 24 28 =1530+239 17 31 49 58.7 240.3 2.0 43.5 90 1038 01 22 59 01 24 54 ARP220 17 32 15 58.8 239.4 1.9 42.9 21 1038 01 24 54 01 28 54 --- 17 36 16 58.2 240.7 2.0 43.6 240 1100 01 24 55 01 29 21 J1532+2344 17 36 43 57.9 241.8 2.0 44.3 22 1100 01 29 21 01 30 51 =1530+239 17 38 13 57.7 242.3 2.1 44.5 90 1123 01 29 22 01 31 17 ARP220 17 38 40 57.8 241.5 2.0 44.0 22 1123 01 31 17 01 35 17 --- 17 42 40 57.2 242.7 2.1 44.6 240 1185 01 31 18 01 35 44 J1532+2344 17 43 07 56.9 243.8 2.2 45.3 22 1185 01 35 44 01 37 14 =1530+239 17 44 37 56.7 244.2 2.2 45.5 90 1208 01 35 45 01 37 41 ARP220 17 45 04 56.8 243.4 2.2 45.0 22 1208 01 37 41 01 41 41 --- 17 49 04 56.1 244.6 2.2 45.6 240 1269 01 37 42 Schedule for URUMQI (Code Ur ) 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 17 49 31 55.8 245.6 2.3 46.2 22 1269 01 42 07 01 43 37 =1530+239 17 51 02 55.6 246.0 2.3 46.4 90 1292 01 42 08 01 44 04 ARP220 17 51 28 55.7 245.3 2.3 45.9 22 1292 01 44 04 01 48 04 --- 17 55 29 55.1 246.4 2.3 46.4 240 1354 01 44 05 01 48 30 J1532+2344 17 55 56 54.8 247.4 2.4 47.0 22 1354 01 48 30 01 50 00 =1530+239 17 57 26 54.5 247.8 2.4 47.2 90 1377 01 48 31 01 50 27 ARP220 17 57 52 54.7 247.0 2.4 46.7 22 1377 01 50 27 01 54 27 --- 18 01 53 54.0 248.1 2.4 47.2 240 1438 01 50 28 01 54 53 J1532+2344 18 02 20 53.7 249.1 2.5 47.7 22 1438 01 54 53 01 56 23 =1530+239 18 03 50 53.4 249.5 2.5 47.9 90 1462 01 54 54 01 56 50 ARP220 18 04 16 53.6 248.7 2.5 47.5 22 1462 01 56 50 02 00 50 --- 18 08 17 52.9 249.8 2.5 47.9 240 1523 01 56 51 02 01 16 J1532+2344 18 08 44 52.6 250.7 2.6 48.4 22 1523 02 01 16 02 02 46 =1530+239 18 10 14 52.4 251.1 2.6 48.6 90 1546 02 01 17 02 03 13 ARP220 18 10 40 52.5 250.4 2.6 48.2 22 1546 02 03 13 02 07 13 --- 18 14 41 51.8 251.4 2.6 48.5 240 1608 02 03 14 02 07 39 J1532+2344 18 15 08 51.5 252.3 2.7 49.0 22 1608 02 07 39 02 09 09 =1530+239 18 16 38 51.2 252.7 2.7 49.1 90 1631 02 07 40 02 11 15 OQ208 18 18 44 38.3 274.9 4.2 55.2 97 1631 02 11 15 02 16 15 --- 18 23 45 37.4 275.7 4.3 55.1 300 1708 02 11 16 02 18 16 J1532+2344 18 25 46 49.7 254.8 2.9 49.9 92 1708 02 18 16 02 19 46 =1530+239 18 27 16 49.4 255.1 2.9 50.0 90 1731 02 18 17 02 20 12 ARP220 18 27 42 49.6 254.5 2.9 49.6 22 1731 02 20 12 02 24 12 --- 18 31 43 48.9 255.4 2.9 49.9 240 1792 02 20 13 02 24 38 J1532+2344 18 32 09 48.5 256.2 3.0 50.3 22 1792 02 24 38 02 26 08 =1530+239 18 33 40 48.3 256.6 3.0 50.4 90 1815 02 24 39 02 26 34 ARP220 18 34 06 48.4 255.9 3.0 50.1 22 1815 02 26 34 02 30 34 --- 18 38 06 47.7 256.8 3.0 50.4 240 1877 02 26 35 02 31 01 J1532+2344 18 38 33 47.4 257.6 3.1 50.7 22 1877 02 31 01 02 32 31 =1530+239 18 40 03 47.1 257.9 3.1 50.8 90 1900 02 31 02 Schedule for URUMQI (Code Ur ) 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 18 40 29 47.3 257.3 3.1 50.5 22 1900 02 32 57 02 36 57 --- 18 44 30 46.6 258.2 3.1 50.7 240 1962 02 32 58 02 37 24 J1532+2344 18 44 57 46.3 259.0 3.2 51.0 22 1962 02 37 24 02 38 54 =1530+239 18 46 27 46.0 259.3 3.2 51.1 90 1985 02 37 25 02 39 20 ARP220 18 46 53 46.2 258.7 3.2 50.8 22 1985 02 39 20 02 43 20 --- 18 50 54 45.5 259.5 3.2 51.0 240 2046 02 39 21 02 43 47 J1532+2344 18 51 21 45.1 260.3 3.3 51.3 23 2046 02 43 47 02 45 17 =1530+239 18 52 51 44.9 260.6 3.3 51.4 90 2069 02 43 48 02 45 43 ARP220 18 53 17 45.0 260.0 3.3 51.2 22 2069 02 45 43 02 49 43 --- 18 57 18 44.3 260.8 3.4 51.3 240 2131 02 45 44 02 50 10 J1532+2344 18 57 45 44.0 261.6 3.4 51.6 23 2131 02 50 10 02 51 40 =1530+239 18 59 15 43.7 261.9 3.4 51.7 90 2154 02 50 11 02 52 06 ARP220 18 59 42 43.9 261.3 3.4 51.4 22 2154 02 52 06 02 56 06 --- 19 03 42 43.2 262.1 3.5 51.6 240 2215 02 52 07 02 56 34 J1532+2344 19 04 10 42.8 262.8 3.5 51.8 23 2215 02 56 34 02 58 04 =1530+239 19 05 40 42.6 263.1 3.5 51.9 90 2238 02 56 35 02 58 30 ARP220 19 06 06 42.7 262.5 3.5 51.6 22 2238 02 58 30 03 02 30 --- 19 10 07 42.0 263.3 3.6 51.8 240 2300 02 58 31 03 02 58 J1532+2344 19 10 35 41.7 264.0 3.6 52.0 24 2300 03 02 58 03 04 28 =1530+239 19 12 05 41.4 264.3 3.6 52.0 90 2323 03 02 59 03 04 54 ARP220 19 12 32 41.6 263.8 3.6 51.8 22 2323 03 04 54 03 08 54 --- 19 16 33 40.8 264.5 3.7 51.9 240 2385 03 04 55 03 09 22 J1532+2344 19 17 01 40.5 265.2 3.7 52.1 24 2385 03 09 22 03 10 52 =1530+239 19 18 31 40.2 265.5 3.7 52.2 90 2408 03 09 23 03 13 10 OQ208 19 20 49 27.2 284.4 5.2 53.0 109 2408 03 13 10 03 18 10 --- 19 25 49 26.3 285.1 5.3 52.8 300 2485 03 13 11 03 20 25 J1532+2344 19 28 05 38.5 267.3 3.9 52.3 107 2485 03 20 25 03 21 55 =1530+239 19 29 35 38.2 267.5 3.9 52.3 90 2508 03 20 26 03 22 20 ARP220 19 30 01 38.4 267.0 3.9 52.2 21 2508 03 22 20 03 26 20 --- 19 34 01 37.7 267.7 4.0 52.2 240 2569 03 22 21 Schedule for URUMQI (Code Ur ) 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 19 34 27 37.4 268.4 4.0 52.4 21 2569 03 26 46 03 28 16 =1530+239 19 35 57 37.1 268.7 4.0 52.4 90 2592 03 26 47 03 28 43 ARP220 19 36 25 37.2 268.1 4.0 52.2 23 2592 03 28 43 03 32 43 --- 19 40 26 36.5 268.8 4.1 52.3 240 2654 03 28 44 03 33 13 J1532+2344 19 40 55 36.2 269.5 4.1 52.4 25 2654 03 33 13 03 34 43 =1530+239 19 42 25 35.9 269.8 4.1 52.4 90 2677 03 33 14 03 35 11 ARP220 19 42 53 36.1 269.3 4.1 52.3 24 2677 03 35 11 03 39 11 --- 19 46 54 35.3 269.9 4.2 52.3 240 2738 03 35 12 03 39 40 J1532+2344 19 47 24 35.0 270.6 4.2 52.4 25 2738 03 39 40 03 41 10 =1530+239 19 48 54 34.7 270.9 4.3 52.4 90 2762 03 39 41 03 41 39 ARP220 19 49 22 34.9 270.4 4.2 52.3 24 2762 03 41 39 03 45 39 --- 19 53 23 34.2 271.1 4.3 52.3 240 2823 03 41 40 03 46 09 J1532+2344 19 53 53 33.8 271.7 4.3 52.4 26 2823 03 46 09 03 47 39 =1530+239 19 55 23 33.6 272.0 4.4 52.4 90 2846 03 46 10 03 48 07 ARP220 19 55 52 33.7 271.5 4.3 52.2 24 2846 03 48 07 03 52 07 --- 19 59 52 33.0 272.2 4.4 52.2 240 2908 03 48 08 03 52 37 J1532+2344 20 00 23 32.6 272.8 4.4 52.3 26 2908 03 52 37 03 54 07 =1530+239 20 01 53 32.4 273.1 4.5 52.3 90 2931 03 52 38 03 54 36 ARP220 20 02 22 32.5 272.6 4.4 52.2 25 2931 03 54 36 03 58 36 --- 20 06 23 31.8 273.2 4.5 52.2 240 2992 03 54 37 03 59 07 J1532+2344 20 06 53 31.5 273.9 4.6 52.2 27 2992 03 59 07 04 00 37 =1530+239 20 08 24 31.2 274.1 4.6 52.2 90 3015 03 59 08 04 01 06 ARP220 20 08 53 31.4 273.6 4.5 52.1 25 3015 04 01 06 04 05 06 --- 20 12 53 30.6 274.3 4.6 52.1 240 3077 04 01 07 04 05 37 J1532+2344 20 13 24 30.3 275.0 4.7 52.1 27 3077 04 05 37 04 07 07 =1530+239 20 14 55 30.0 275.2 4.7 52.1 90 3100 04 05 38 04 07 36 ARP220 20 15 24 30.2 274.7 4.7 52.0 25 3100 04 07 36 04 11 36 --- 20 19 25 29.5 275.4 4.7 51.9 240 3162 04 07 37 04 12 08 J1532+2344 20 19 56 29.1 276.0 4.8 52.0 27 3162 04 12 08 04 13 38 =1530+239 20 21 26 28.8 276.3 4.8 52.0 90 3185 04 12 09 Schedule for URUMQI (Code Ur ) 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 20 24 25 16.3 293.8 6.3 49.0 150 3185 04 16 35 04 21 35 --- 20 29 25 15.5 294.6 6.4 48.6 300 3262 04 16 36 04 24 26 J1532+2344 20 32 17 26.9 278.0 5.0 51.7 144 3262 04 24 26 04 25 56 =1530+239 20 33 47 26.6 278.2 5.0 51.6 90 3285 04 24 27 04 26 26 ARP220 20 34 17 26.8 277.8 5.0 51.6 26 3285 04 26 26 04 30 26 --- 20 38 18 26.1 278.4 5.0 51.5 240 3346 04 26 27 04 30 58 J1532+2344 20 38 50 25.7 279.0 5.1 51.5 28 3346 04 30 58 04 32 28 =1530+239 20 40 20 25.4 279.3 5.1 51.4 90 3369 04 30 59 04 32 58 ARP220 20 40 50 25.6 278.8 5.1 51.4 26 3369 04 32 58 04 36 58 --- 20 44 51 24.9 279.4 5.1 51.3 240 3431 04 32 59 04 37 30 J1532+2344 20 45 23 24.5 280.1 5.2 51.3 28 3431 04 37 30 04 39 00 =1530+239 20 46 54 24.3 280.3 5.2 51.2 90 3454 04 37 31 04 39 31 ARP220 20 47 24 24.4 279.8 5.2 51.2 26 3454 04 39 31 04 43 31 --- 20 51 25 23.7 280.5 5.3 51.0 240 3515 04 39 32 04 44 03 J1532+2344 20 51 57 23.4 281.1 5.3 51.0 28 3515 04 44 03 04 45 33 =1530+239 20 53 28 23.1 281.3 5.3 51.0 90 3538 04 44 04 04 46 04 ARP220 20 53 58 23.3 280.9 5.3 51.0 27 3538 04 46 04 04 50 04 --- 20 57 59 22.5 281.5 5.4 50.8 240 3600 04 46 05 04 50 37 J1532+2344 20 58 32 22.2 282.1 5.4 50.8 29 3600 04 50 37 04 52 07 =1530+239 21 00 02 21.9 282.4 5.4 50.7 90 3623 04 50 38 04 52 37 ARP220 21 00 33 22.1 281.9 5.4 50.7 27 3623 04 52 37 04 56 37 --- 21 04 33 21.4 282.5 5.5 50.5 240 3685 04 52 38 04 57 10 J1532+2344 21 05 06 21.0 283.2 5.5 50.5 29 3685 04 57 10 04 58 40 =1530+239 21 06 36 20.8 283.4 5.5 50.4 90 3708 04 57 11 04 59 11 ARP220 21 07 07 20.9 282.9 5.5 50.4 27 3708 04 59 11 05 03 11 --- 21 11 08 20.2 283.6 5.6 50.2 240 3769 04 59 12 05 03 44 J1532+2344 21 11 41 19.9 284.2 5.6 50.2 29 3769 05 03 44 05 05 14 =1530+239 21 13 11 19.6 284.4 5.7 50.1 90 3792 05 03 45 05 05 45 ARP220 21 13 42 19.8 284.0 5.6 50.1 27 3792 05 05 45 05 09 45 --- 21 17 43 19.1 284.6 5.7 49.9 240 3854 05 05 46 Schedule for URUMQI (Code Ur ) 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 21 18 16 18.7 285.2 5.7 49.9 29 3854 05 10 18 05 11 48 =1530+239 21 19 46 18.5 285.4 5.8 49.8 90 3877 05 10 19 05 12 19 ARP220 21 20 17 18.6 285.0 5.7 49.8 27 3877 05 12 19 05 16 19 --- 21 24 18 17.9 285.6 5.8 49.6 240 3938 05 12 20 05 16 52 J1532+2344 21 24 51 17.6 286.2 5.9 49.5 29 3938 05 16 52 05 18 22 =1530+239 21 26 21 17.3 286.5 5.9 49.4 90 3962 05 16 53 05 29 19 J1532+2344 21 37 21 15.4 288.2 6.1 48.8 655 3962 05 29 19 05 30 49 =1530+239 21 38 51 15.1 288.4 6.1 48.7 90 3985 05 29 20 05 31 20 ARP220 21 39 22 15.3 288.0 6.1 48.8 27 3985 05 31 20 05 35 20 --- 21 43 23 14.6 288.6 6.1 48.5 240 4046 05 31 21 05 35 53 J1532+2344 21 43 56 14.3 289.2 6.2 48.4 29 4046 05 35 53 05 37 23 =1530+239 21 45 26 14.0 289.5 6.2 48.3 90 4069 05 35 54 05 37 54 ARP220 21 45 57 14.1 289.0 6.2 48.4 27 4069 05 37 54 05 41 54 --- 21 49 58 13.5 289.6 6.2 48.1 240 4131 05 37 55 05 42 27 J1532+2344 21 50 30 13.2 290.3 6.3 48.0 29 4131 05 42 27 05 43 57 =1530+239 21 52 01 12.9 290.5 6.3 47.9 90 4154 05 42 28 05 44 28 ARP220 21 52 32 13.0 290.1 6.3 48.0 27 4154 05 44 28 05 48 28 --- 21 56 32 12.3 290.7 6.3 47.7 240 4215 05 44 29 05 49 00 J1532+2344 21 57 05 12.0 291.3 6.4 47.6 28 4215 05 49 00 05 50 30 =1530+239 21 58 35 11.8 291.5 6.4 47.5 90 4238 05 49 01 05 51 01 ARP220 21 59 06 11.9 291.1 6.4 47.6 27 4238 05 51 01 05 55 01 --- 22 03 07 11.2 291.7 6.5 47.3 240 4300 05 51 02 05 55 34 J1532+2344 22 03 39 10.9 292.3 6.5 47.1 28 4300 05 55 34 05 57 04 =1530+239 22 05 09 10.7 292.6 6.5 47.0 90 4323 05 55 35 05 57 34 ARP220 22 05 40 10.8 292.1 6.5 47.1 27 4323 05 57 34 06 01 34 --- 22 09 41 10.1 292.8 6.6 46.8 240 4385 05 57 35 06 02 07 J1532+2344 22 10 13 9.8 293.4 6.6 46.7 28 4385 06 02 07 06 03 37 =1530+239 22 11 44 9.6 293.6 6.6 46.5 90 4408 06 02 08 06 04 07 ARP220 22 12 14 9.7 293.2 6.6 46.6 27 4408 06 04 07 06 08 07 --- 22 16 15 9.0 293.8 6.7 46.3 240 4469 06 04 08 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: 21 Station: URUMQI Total bit rate: 2048 Format: MARK5B 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= 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 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 = A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 8 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= 152.00 152.00 152.00 152.00 216.00 216.00 216.00 216.00 280.00 280.00 280.00 280.00 344.00 344.00 344.00 344.00 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: 8 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 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