COVER INFORMATION Station: VLBA_MK (Code Mk ) 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 VLBA_MK (Code Mk ) 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: 4740.00 4740.00 4804.00 4804.00 4868.00 4868.00 4932.00 4932.00 Next BBC frequencies: 640.00 640.00 704.00 704.00 768.00 768.00 832.00 832.00 Next scan bandwidths: 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.00 09 48 06 OQ208 09 46 17 30.3 68.0 -4.4 -82.5 0 0 09 48 06 09 49 06 --- 09 47 18 30.5 68.1 -4.3 -82.6 60 15 09 48 07 09 49 06 OQ208 09 47 18 30.5 68.1 -4.3 -82.6 -6 15 09 49 12 09 53 06 --- 09 51 18 31.4 68.2 -4.3 -83.0 234 76 09 49 07 09 54 39 J1532+2344 09 52 52 12.0 68.9 -5.7 -73.4 44 76 09 54 39 09 55 39 =1530+239 09 53 52 12.2 69.0 -5.7 -73.5 60 91 09 54 40 09 55 39 J1532+2344 09 53 52 12.2 69.0 -5.7 -73.5 -6 91 09 55 45 09 56 09 =1530+239 09 54 23 12.3 69.0 -5.7 -73.6 24 97 09 55 40 09 56 36 ARP220 09 54 50 11.9 69.1 -5.7 -73.4 18 97 09 56 36 10 00 36 --- 09 58 50 12.8 69.4 -5.6 -73.7 240 159 09 56 37 10 01 04 J1532+2344 09 59 18 13.4 69.4 -5.6 -74.0 19 159 10 01 04 10 02 34 =1530+239 10 00 48 13.7 69.5 -5.5 -74.1 90 182 10 01 05 10 03 01 ARP220 10 01 15 13.3 69.6 -5.6 -73.9 18 182 10 03 01 10 07 01 --- 10 05 16 14.2 69.8 -5.5 -74.3 240 244 10 03 02 10 07 29 J1532+2344 10 05 44 14.8 69.8 -5.5 -74.5 19 244 10 07 29 10 08 29 =1530+239 10 06 44 15.0 69.8 -5.5 -74.6 60 260 10 07 30 10 08 29 J1532+2344 10 06 44 15.0 69.8 -5.5 -74.6 -6 260 10 08 35 10 08 59 =1530+239 10 07 14 15.1 69.9 -5.4 -74.7 24 266 10 08 30 10 09 26 ARP220 10 07 41 14.7 70.0 -5.5 -74.5 18 266 10 09 26 10 13 26 --- 10 11 42 15.6 70.2 -5.4 -74.8 240 328 10 09 27 10 13 53 J1532+2344 10 12 09 16.2 70.2 -5.4 -75.1 19 328 10 13 53 10 15 23 =1530+239 10 13 39 16.6 70.3 -5.3 -75.2 90 351 10 13 54 10 15 50 ARP220 10 14 06 16.1 70.4 -5.4 -75.0 18 351 10 15 50 10 19 50 --- 10 18 07 17.0 70.6 -5.3 -75.3 240 413 10 15 51 10 20 18 J1532+2344 10 18 35 17.7 70.6 -5.3 -75.6 19 413 10 20 18 10 21 18 =1530+239 10 19 35 17.9 70.6 -5.2 -75.7 60 428 10 20 19 10 21 18 J1532+2344 10 19 35 17.9 70.6 -5.2 -75.7 -6 428 10 21 24 10 21 48 =1530+239 10 20 05 18.0 70.6 -5.2 -75.7 24 434 10 21 19 Schedule for VLBA_MK (Code Mk ) 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 --- 10 22 14 ARP220 10 20 32 17.5 70.8 -5.3 -75.5 18 434 10 22 14 10 26 14 --- 10 24 32 18.4 71.0 -5.2 -75.8 240 496 10 22 15 10 26 42 J1532+2344 10 25 00 19.1 70.9 -5.1 -76.1 19 496 10 26 42 10 28 12 =1530+239 10 26 30 19.4 71.0 -5.1 -76.2 90 519 10 26 43 10 28 39 ARP220 10 26 57 19.0 71.2 -5.2 -76.0 18 519 10 28 39 10 32 39 --- 10 30 58 19.9 71.4 -5.1 -76.3 240 581 10 28 40 10 33 06 J1532+2344 10 31 25 20.5 71.3 -5.0 -76.6 19 581 10 33 06 10 34 06 =1530+239 10 32 26 20.7 71.4 -5.0 -76.7 60 597 10 33 07 10 34 06 J1532+2344 10 32 26 20.7 71.4 -5.0 -76.7 -6 597 10 34 12 10 34 36 =1530+239 10 32 56 20.8 71.4 -5.0 -76.8 24 603 10 34 07 10 35 03 ARP220 10 33 23 20.4 71.5 -5.0 -76.5 18 603 10 35 03 10 39 03 --- 10 37 23 21.3 71.8 -5.0 -76.9 240 665 10 35 04 10 39 30 J1532+2344 10 37 51 21.9 71.7 -4.9 -77.2 18 665 10 39 30 10 41 00 =1530+239 10 39 21 22.3 71.7 -4.9 -77.3 90 688 10 39 31 10 41 27 ARP220 10 39 48 21.8 71.9 -4.9 -77.1 18 688 10 41 27 10 45 27 --- 10 43 48 22.7 72.1 -4.9 -77.4 240 750 10 41 28 10 45 55 J1532+2344 10 44 16 23.4 72.0 -4.8 -77.7 18 750 10 45 55 10 47 25 =1530+239 10 45 46 23.7 72.1 -4.8 -77.8 90 773 10 45 56 10 48 57 OQ208 10 47 19 43.7 69.3 -3.3 -89.0 43 773 10 48 57 10 49 57 --- 10 48 19 43.9 69.3 -3.3 -89.2 60 788 10 48 58 10 49 57 OQ208 10 48 19 43.9 69.3 -3.3 -89.2 -6 788 10 50 03 10 53 57 --- 10 52 20 44.8 69.3 -3.3 -89.6 234 849 10 49 58 10 55 31 J1532+2344 10 53 53 25.5 72.5 -4.7 -78.4 44 849 10 55 31 10 56 31 =1530+239 10 54 54 25.8 72.6 -4.6 -78.5 60 864 10 55 32 10 56 31 J1532+2344 10 54 54 25.8 72.6 -4.6 -78.5 -6 864 10 56 37 10 57 01 =1530+239 10 55 24 25.9 72.6 -4.6 -78.5 24 870 10 56 32 10 57 16 ARP220 10 55 39 25.4 72.7 -4.7 -78.3 7 870 10 57 16 11 01 16 --- 10 59 40 26.3 72.9 -4.6 -78.6 240 932 10 57 17 11 01 32 J1532+2344 10 59 55 26.9 72.8 -4.6 -78.9 7 932 11 01 32 11 03 02 =1530+239 11 01 26 27.2 72.9 -4.5 -79.0 90 955 11 01 33 Schedule for VLBA_MK (Code Mk ) 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 --- 11 03 17 ARP220 11 01 41 26.8 73.0 -4.6 -78.8 7 955 11 03 17 11 07 17 --- 11 05 42 27.7 73.2 -4.5 -79.1 240 1017 11 03 18 11 07 33 J1532+2344 11 05 58 28.2 73.1 -4.5 -79.4 7 1017 11 07 33 11 08 33 =1530+239 11 06 58 28.5 73.2 -4.4 -79.4 60 1033 11 07 34 11 08 33 J1532+2344 11 06 58 28.5 73.2 -4.4 -79.4 -6 1033 11 08 39 11 09 03 =1530+239 11 07 28 28.6 73.2 -4.4 -79.5 24 1039 11 08 34 11 09 18 ARP220 11 07 43 28.1 73.3 -4.5 -79.2 7 1039 11 09 18 11 13 18 --- 11 11 44 29.0 73.5 -4.4 -79.5 240 1101 11 09 19 11 13 34 J1532+2344 11 12 00 29.6 73.4 -4.4 -79.8 7 1101 11 13 34 11 15 04 =1530+239 11 13 30 29.9 73.5 -4.3 -80.0 90 1124 11 13 35 11 15 19 ARP220 11 13 45 29.5 73.6 -4.4 -79.7 7 1124 11 15 19 11 19 19 --- 11 17 46 30.4 73.8 -4.3 -80.0 240 1186 11 15 20 11 19 35 J1532+2344 11 18 02 31.0 73.7 -4.3 -80.3 7 1186 11 19 35 11 20 35 =1530+239 11 19 02 31.2 73.7 -4.2 -80.4 60 1201 11 19 36 11 20 35 J1532+2344 11 19 02 31.2 73.7 -4.2 -80.4 -6 1201 11 20 41 11 21 05 =1530+239 11 19 32 31.3 73.7 -4.2 -80.4 24 1207 11 20 36 11 21 20 ARP220 11 19 47 30.8 73.9 -4.3 -80.1 7 1207 11 21 20 11 25 20 --- 11 23 48 31.7 74.1 -4.2 -80.4 240 1269 11 21 21 11 25 36 J1532+2344 11 24 04 32.3 73.9 -4.2 -80.8 7 1269 11 25 36 11 27 06 =1530+239 11 25 34 32.7 74.0 -4.1 -80.9 90 1292 11 25 37 11 27 21 ARP220 11 25 49 32.2 74.2 -4.2 -80.6 7 1292 11 27 21 11 31 21 --- 11 29 50 33.1 74.4 -4.1 -80.9 240 1354 11 27 22 11 31 37 J1532+2344 11 30 06 33.7 74.2 -4.1 -81.2 7 1354 11 31 37 11 32 37 =1530+239 11 31 06 33.9 74.2 -4.0 -81.3 60 1370 11 31 38 11 32 37 J1532+2344 11 31 06 33.9 74.2 -4.0 -81.3 -6 1370 11 32 43 11 33 07 =1530+239 11 31 36 34.0 74.3 -4.0 -81.3 24 1376 11 32 38 11 33 22 ARP220 11 31 51 33.6 74.4 -4.1 -81.0 7 1376 11 33 22 11 37 22 --- 11 35 52 34.5 74.6 -4.0 -81.4 240 1438 11 33 23 11 37 38 J1532+2344 11 36 08 35.1 74.4 -4.0 -81.7 7 1438 11 37 38 11 39 08 =1530+239 11 37 38 35.4 74.5 -3.9 -81.8 90 1461 11 37 39 Schedule for VLBA_MK (Code Mk ) 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 --- 11 39 23 ARP220 11 37 53 34.9 74.7 -4.0 -81.5 7 1461 11 39 23 11 43 23 --- 11 41 54 35.8 74.9 -3.9 -81.8 240 1523 11 39 24 11 43 39 J1532+2344 11 42 10 36.4 74.7 -3.9 -82.2 7 1523 11 43 39 11 45 09 =1530+239 11 43 40 36.8 74.7 -3.8 -82.3 90 1546 11 43 40 11 47 55 OQ208 11 46 26 56.7 68.2 -2.4 -96.9 117 1546 11 47 55 11 48 55 --- 11 47 27 56.9 68.2 -2.3 -97.1 60 1561 11 47 56 11 48 55 OQ208 11 47 27 56.9 68.2 -2.3 -97.1 -6 1561 11 49 01 11 52 55 --- 11 51 27 57.8 68.0 -2.3 -97.7 234 1622 11 48 56 11 55 32 J1532+2344 11 54 04 39.1 75.1 -3.7 -83.1 108 1622 11 55 32 11 56 32 =1530+239 11 55 04 39.4 75.2 -3.6 -83.2 60 1637 11 55 33 11 56 32 J1532+2344 11 55 04 39.4 75.2 -3.6 -83.2 -6 1637 11 56 38 11 57 02 =1530+239 11 55 34 39.5 75.2 -3.6 -83.2 24 1643 11 56 33 11 57 11 ARP220 11 55 44 39.0 75.4 -3.7 -82.9 1 1643 11 57 10 12 01 11 --- 11 59 45 39.9 75.5 -3.6 -83.2 240 1705 11 57 03 12 01 22 J1532+2344 11 59 55 40.5 75.3 -3.6 -83.5 1 1705 12 01 22 12 02 52 =1530+239 12 01 26 40.8 75.4 -3.5 -83.7 90 1728 12 01 23 12 03 02 ARP220 12 01 36 40.3 75.6 -3.6 -83.3 1 1728 12 03 02 12 07 02 --- 12 05 36 41.2 75.7 -3.5 -83.6 240 1790 12 03 03 12 07 13 J1532+2344 12 05 47 41.8 75.5 -3.5 -84.0 2 1790 12 07 13 12 08 13 =1530+239 12 06 47 42.0 75.6 -3.4 -84.1 60 1806 12 07 14 12 08 13 J1532+2344 12 06 47 42.0 75.6 -3.4 -84.1 -6 1806 12 08 19 12 08 43 =1530+239 12 07 17 42.1 75.6 -3.4 -84.1 24 1812 12 08 14 12 08 53 ARP220 12 07 28 41.7 75.8 -3.5 -83.8 2 1812 12 08 53 12 12 53 --- 12 11 29 42.6 75.9 -3.4 -84.1 240 1874 12 08 54 12 13 04 J1532+2344 12 11 40 43.1 75.7 -3.4 -84.5 2 1874 12 13 04 12 14 34 =1530+239 12 13 10 43.5 75.7 -3.3 -84.6 90 1897 12 13 05 12 14 45 ARP220 12 13 21 43.0 76.0 -3.4 -84.2 2 1897 12 14 45 12 18 45 --- 12 17 21 43.9 76.1 -3.3 -84.5 240 1959 12 14 46 12 18 56 J1532+2344 12 17 32 44.5 75.9 -3.3 -84.9 2 1959 12 18 56 12 19 56 =1530+239 12 18 33 44.7 75.9 -3.3 -85.0 60 1974 12 18 57 Schedule for VLBA_MK (Code Mk ) 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 --- 12 19 56 J1532+2344 12 18 33 44.7 75.9 -3.3 -85.0 -6 1974 12 20 02 12 20 26 =1530+239 12 19 03 44.8 75.9 -3.2 -85.1 24 1980 12 19 57 12 20 37 ARP220 12 19 13 44.3 76.2 -3.3 -84.7 2 1980 12 20 37 12 24 37 --- 12 23 14 45.3 76.3 -3.2 -85.0 240 2042 12 20 38 12 24 47 J1532+2344 12 23 25 45.8 76.0 -3.2 -85.4 2 2042 12 24 47 12 26 17 =1530+239 12 24 55 46.2 76.1 -3.1 -85.5 90 2065 12 24 48 12 26 28 ARP220 12 25 06 45.7 76.4 -3.2 -85.1 2 2065 12 26 28 12 30 28 --- 12 29 07 46.6 76.5 -3.1 -85.5 240 2127 12 26 29 12 30 39 J1532+2344 12 29 17 47.2 76.2 -3.1 -85.9 2 2127 12 30 39 12 31 39 =1530+239 12 30 17 47.4 76.2 -3.1 -86.0 60 2143 12 30 40 12 31 39 J1532+2344 12 30 17 47.4 76.2 -3.1 -86.0 -6 2143 12 31 45 12 32 09 =1530+239 12 30 48 47.5 76.2 -3.0 -86.0 24 2149 12 31 40 12 32 19 ARP220 12 30 58 47.0 76.5 -3.1 -85.6 2 2149 12 32 19 12 36 19 --- 12 34 59 47.9 76.6 -3.0 -85.9 240 2211 12 32 20 12 36 30 J1532+2344 12 35 09 48.5 76.3 -3.0 -86.4 2 2211 12 36 30 12 38 00 =1530+239 12 36 40 48.8 76.3 -3.0 -86.5 90 2234 12 36 31 12 38 10 ARP220 12 36 50 48.4 76.7 -3.0 -86.1 2 2234 12 38 10 12 42 10 --- 12 40 51 49.3 76.7 -2.9 -86.4 240 2296 12 38 11 12 42 21 J1532+2344 12 41 01 49.8 76.4 -2.9 -86.9 2 2296 12 42 21 12 43 51 =1530+239 12 42 32 50.2 76.5 -2.9 -87.0 90 2319 12 42 22 12 45 26 OQ208 12 44 07 69.1 61.9 -1.4 -109.4 47 2319 12 45 26 12 46 26 --- 12 45 07 69.3 61.7 -1.4 -109.7 60 2334 12 45 27 12 46 26 OQ208 12 45 07 69.3 61.7 -1.4 -109.7 -6 2334 12 46 32 12 50 26 --- 12 49 08 70.1 60.8 -1.3 -111.1 234 2395 12 46 27 12 51 50 J1532+2344 12 50 32 52.0 76.6 -2.7 -87.7 38 2395 12 51 50 12 52 50 =1530+239 12 51 32 52.2 76.6 -2.7 -87.8 60 2410 12 51 51 12 52 50 J1532+2344 12 51 32 52.2 76.6 -2.7 -87.8 -6 2410 12 52 56 12 53 20 =1530+239 12 52 03 52.4 76.6 -2.7 -87.8 24 2416 12 52 51 12 53 31 ARP220 12 52 13 51.9 77.0 -2.7 -87.4 2 2416 12 53 31 12 57 31 --- 12 56 14 52.8 77.0 -2.7 -87.7 240 2478 12 53 32 Schedule for VLBA_MK (Code Mk ) 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 --- 12 57 41 J1532+2344 12 56 24 53.4 76.7 -2.6 -88.2 2 2478 12 57 41 12 59 11 =1530+239 12 57 54 53.7 76.7 -2.6 -88.4 90 2501 12 57 42 12 59 21 ARP220 12 58 05 53.2 77.1 -2.6 -87.9 1 2501 12 59 21 13 03 21 --- 13 02 05 54.2 77.1 -2.6 -88.2 240 2563 12 59 22 13 03 32 J1532+2344 13 02 15 54.7 76.7 -2.5 -88.8 1 2563 13 03 32 13 04 32 =1530+239 13 03 16 54.9 76.7 -2.5 -88.9 60 2579 13 03 33 13 04 32 J1532+2344 13 03 16 54.9 76.7 -2.5 -88.9 -6 2579 13 04 38 13 05 02 =1530+239 13 03 46 55.0 76.8 -2.5 -88.9 24 2585 13 04 33 13 05 12 ARP220 13 03 56 54.6 77.1 -2.5 -88.4 1 2585 13 05 12 13 09 12 --- 13 07 56 55.5 77.2 -2.5 -88.8 240 2647 13 05 13 13 09 22 J1532+2344 13 08 07 56.0 76.8 -2.4 -89.3 1 2647 13 09 22 13 10 52 =1530+239 13 09 37 56.4 76.8 -2.4 -89.5 90 2670 13 09 23 13 11 02 ARP220 13 09 47 55.9 77.2 -2.4 -88.9 1 2670 13 11 01 13 15 02 --- 13 13 47 56.8 77.2 -2.4 -89.3 240 2732 13 10 53 13 15 11 J1532+2344 13 13 57 57.4 76.8 -2.3 -89.9 1 2732 13 15 11 13 16 11 =1530+239 13 14 57 57.6 76.8 -2.3 -90.0 60 2748 13 15 03 13 16 11 J1532+2344 13 14 57 57.6 76.8 -2.3 -90.0 -6 2748 13 16 17 13 16 41 =1530+239 13 15 28 57.7 76.8 -2.3 -90.1 24 2754 13 16 12 13 16 51 ARP220 13 15 37 57.3 77.2 -2.3 -89.5 1 2754 13 16 50 13 20 51 --- 13 19 38 58.2 77.2 -2.3 -89.9 240 2816 13 16 42 13 21 01 J1532+2344 13 19 48 58.7 76.8 -2.2 -90.5 1 2816 13 21 00 13 22 31 =1530+239 13 21 18 59.1 76.8 -2.2 -90.7 90 2839 13 20 52 13 22 40 ARP220 13 21 27 58.6 77.2 -2.2 -90.1 1 2839 13 22 40 13 26 40 --- 13 25 28 59.5 77.2 -2.2 -90.5 240 2902 13 22 32 13 26 50 J1532+2344 13 25 38 60.1 76.7 -2.1 -91.1 1 2902 13 26 49 13 27 50 =1530+239 13 26 38 60.3 76.7 -2.1 -91.2 60 2917 13 26 41 13 27 50 J1532+2344 13 26 38 60.3 76.7 -2.1 -91.2 -6 2917 13 27 56 13 28 20 =1530+239 13 27 08 60.4 76.7 -2.1 -91.3 24 2923 13 27 51 13 28 29 ARP220 13 27 17 59.9 77.2 -2.1 -90.7 1 2923 13 28 29 13 32 29 --- 13 31 18 60.9 77.2 -2.1 -91.1 240 2986 13 28 21 Schedule for VLBA_MK (Code Mk ) 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 --- 13 32 39 J1532+2344 13 31 27 61.4 76.7 -2.0 -91.8 1 2986 13 32 38 13 34 09 =1530+239 13 32 58 61.7 76.7 -2.0 -91.9 90 3009 13 32 30 13 34 18 ARP220 13 33 07 61.3 77.2 -2.0 -91.3 1 3009 13 34 17 13 38 18 --- 13 37 08 62.2 77.1 -2.0 -91.7 240 3071 13 34 10 13 38 27 J1532+2344 13 37 17 62.7 76.6 -1.9 -92.4 1 3071 13 38 27 13 39 57 =1530+239 13 38 47 63.1 76.5 -1.9 -92.6 90 3094 13 38 19 13 40 50 OQ208 13 39 40 79.3 35.8 -0.5 -141.3 10 3094 13 40 50 13 41 50 --- 13 40 40 79.4 34.9 -0.5 -142.3 60 3110 13 40 51 13 41 50 OQ208 13 40 40 79.4 34.9 -0.5 -142.3 -6 3110 13 41 56 13 45 50 --- 13 44 41 79.9 30.9 -0.4 -146.8 234 3170 13 41 51 13 46 42 J1532+2344 13 45 33 64.6 76.4 -1.8 -93.5 11 3170 13 46 42 13 47 42 =1530+239 13 46 33 64.8 76.3 -1.8 -93.6 60 3186 13 46 43 13 47 42 J1532+2344 13 46 33 64.8 76.3 -1.8 -93.6 -6 3186 13 47 48 13 48 12 =1530+239 13 47 03 65.0 76.3 -1.8 -93.7 24 3192 13 47 43 13 48 21 ARP220 13 47 12 64.5 76.9 -1.8 -92.9 0 3192 13 48 20 13 52 21 --- 13 51 13 65.4 76.8 -1.7 -93.4 240 3254 13 48 13 13 52 30 J1532+2344 13 51 22 65.9 76.1 -1.7 -94.2 0 3254 13 52 30 13 54 00 =1530+239 13 52 52 66.3 76.1 -1.7 -94.4 90 3277 13 52 22 13 54 09 ARP220 13 53 01 65.8 76.7 -1.7 -93.6 0 3277 13 54 09 13 58 09 --- 13 57 02 66.8 76.6 -1.6 -94.2 240 3339 13 54 01 13 58 18 J1532+2344 13 57 11 67.3 75.9 -1.6 -95.1 0 3339 13 58 18 13 59 18 =1530+239 13 58 11 67.5 75.8 -1.6 -95.2 60 3354 13 58 10 13 59 18 J1532+2344 13 58 11 67.5 75.8 -1.6 -95.2 -6 3354 13 59 24 13 59 48 =1530+239 13 58 41 67.6 75.8 -1.6 -95.3 24 3360 13 59 19 13 59 57 ARP220 13 58 50 67.2 76.5 -1.6 -94.4 0 3360 13 59 57 14 03 57 --- 14 02 51 68.1 76.3 -1.6 -95.0 240 3422 13 59 49 14 04 06 J1532+2344 14 03 00 68.6 75.5 -1.5 -96.0 0 3422 14 04 06 14 05 36 =1530+239 14 04 30 68.9 75.4 -1.5 -96.2 90 3445 14 03 58 14 05 45 ARP220 14 04 39 68.5 76.2 -1.5 -95.3 0 3445 14 05 45 14 09 45 --- 14 08 40 69.4 75.9 -1.5 -95.9 240 3507 14 05 37 Schedule for VLBA_MK (Code Mk ) 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 --- 14 09 54 J1532+2344 14 08 49 69.9 75.1 -1.4 -96.9 0 3507 14 09 54 14 10 54 =1530+239 14 09 49 70.1 75.0 -1.4 -97.1 60 3523 14 09 46 14 10 54 J1532+2344 14 09 49 70.1 75.0 -1.4 -97.1 -6 3523 14 11 00 14 11 24 =1530+239 14 10 19 70.3 75.0 -1.4 -97.2 24 3529 14 10 55 14 11 33 ARP220 14 10 28 69.8 75.8 -1.4 -96.2 0 3529 14 11 33 14 15 33 --- 14 14 29 70.7 75.5 -1.4 -96.9 240 3591 14 11 25 14 15 42 J1532+2344 14 14 38 71.2 74.6 -1.3 -98.0 0 3591 14 15 42 14 17 12 =1530+239 14 16 08 71.6 74.4 -1.3 -98.3 90 3614 14 15 34 14 17 21 ARP220 14 16 17 71.1 75.3 -1.3 -97.2 0 3614 14 17 21 14 21 21 --- 14 20 17 72.1 75.0 -1.3 -98.0 240 3676 14 17 13 14 21 30 J1532+2344 14 20 26 72.6 73.9 -1.2 -99.2 0 3676 14 21 30 14 22 30 =1530+239 14 21 26 72.8 73.8 -1.2 -99.4 60 3691 14 21 22 14 22 30 J1532+2344 14 21 26 72.8 73.8 -1.2 -99.4 -6 3691 14 22 36 14 23 00 =1530+239 14 21 57 72.9 73.8 -1.2 -99.5 24 3697 14 22 31 14 23 08 ARP220 14 22 05 72.5 74.8 -1.2 -98.4 0 3697 14 23 08 14 27 08 --- 14 26 06 73.4 74.3 -1.2 -99.2 240 3759 14 23 01 14 27 17 J1532+2344 14 26 15 73.9 73.2 -1.1 -100.6 0 3759 14 27 17 14 28 47 =1530+239 14 27 45 74.2 72.9 -1.1 -100.9 90 3782 14 27 09 14 28 56 ARP220 14 27 54 73.8 74.0 -1.1 -99.6 0 3782 14 28 56 14 32 56 --- 14 31 54 74.7 73.5 -1.1 -100.6 240 3844 14 28 48 14 33 04 J1532+2344 14 32 03 75.2 72.2 -1.0 -102.1 0 3844 14 33 04 14 34 34 =1530+239 14 33 33 75.5 71.9 -1.0 -102.5 90 3867 14 32 57 14 35 56 OQ208 14 34 55 79.5 -34.4 0.4 142.9 0 3867 14 35 56 14 36 56 --- 14 35 55 79.4 -35.3 0.5 141.8 60 3883 14 35 57 14 36 56 OQ208 14 35 55 79.4 -35.3 0.5 141.8 -6 3883 14 37 02 14 40 56 --- 14 39 56 78.8 -38.9 0.5 137.9 234 3943 14 36 57 14 42 19 J1532+2344 14 41 19 77.2 70.1 -0.9 -105.0 0 3943 14 42 19 14 43 19 =1530+239 14 42 19 77.5 69.8 -0.9 -105.4 60 3959 14 42 20 14 43 19 J1532+2344 14 42 19 77.5 69.8 -0.9 -105.4 -6 3959 14 43 25 14 43 49 =1530+239 14 42 49 77.6 69.7 -0.8 -105.6 24 3965 14 43 20 Schedule for VLBA_MK (Code Mk ) 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 --- 14 43 58 ARP220 14 42 58 77.2 71.2 -0.9 -103.9 0 3965 14 43 58 14 47 58 --- 14 46 59 78.1 70.2 -0.8 -105.3 240 4027 14 43 50 14 48 07 J1532+2344 14 47 08 78.5 68.3 -0.8 -107.3 0 4027 14 48 07 14 49 37 =1530+239 14 48 38 78.8 67.8 -0.8 -108.0 90 4050 14 47 59 14 49 46 ARP220 14 48 47 78.5 69.6 -0.8 -106.0 0 4050 14 49 46 14 53 46 --- 14 52 48 79.3 68.2 -0.7 -107.8 240 4112 14 49 38 14 53 56 J1532+2344 14 52 57 79.8 66.1 -0.7 -110.2 0 4112 14 53 56 14 54 56 =1530+239 14 53 58 80.0 65.6 -0.7 -110.7 60 4127 14 53 47 14 54 56 J1532+2344 14 53 58 80.0 65.6 -0.7 -110.7 -6 4127 14 55 02 14 55 26 =1530+239 14 54 28 80.1 65.4 -0.7 -111.0 24 4133 14 54 57 14 55 35 ARP220 14 54 37 79.7 67.5 -0.7 -108.7 0 4133 14 55 35 14 59 35 --- 14 58 38 80.6 65.7 -0.6 -110.9 240 4195 14 55 27 14 59 45 J1532+2344 14 58 48 81.0 63.1 -0.6 -113.7 0 4195 14 59 45 15 01 15 =1530+239 15 00 18 81.3 62.1 -0.6 -114.8 90 4218 14 59 36 15 01 24 ARP220 15 00 28 81.0 64.7 -0.6 -112.0 0 4218 15 01 24 15 05 24 --- 15 04 28 81.8 62.3 -0.5 -114.8 240 4280 15 01 16 15 05 34 J1532+2344 15 04 38 82.2 59.0 -0.5 -118.3 0 4280 15 05 34 15 06 34 =1530+239 15 05 39 82.4 58.2 -0.5 -119.2 60 4296 15 05 35 15 06 34 J1532+2344 15 05 39 82.4 58.2 -0.5 -119.2 -6 4296 15 06 40 15 07 04 =1530+239 15 06 09 82.5 57.8 -0.5 -119.7 24 4302 15 06 35 15 07 15 ARP220 15 06 19 82.2 60.9 -0.5 -116.3 0 4302 15 07 15 15 11 15 --- 15 10 19 83.0 57.6 -0.4 -120.1 240 4364 15 07 16 15 11 25 J1532+2344 15 10 30 83.4 53.5 -0.4 -124.4 0 4364 15 11 25 15 12 55 =1530+239 15 12 00 83.6 51.7 -0.4 -126.3 90 4387 15 11 26 15 13 06 ARP220 15 12 11 83.4 55.7 -0.4 -122.1 0 4387 15 13 06 15 17 06 --- 15 16 12 84.2 50.9 -0.3 -127.3 240 4449 15 13 07 15 17 18 J1532+2344 15 16 23 84.4 45.6 -0.3 -132.8 0 4449 15 17 18 15 18 18 =1530+239 15 17 24 84.6 43.9 -0.3 -134.6 60 4464 15 17 19 15 18 18 J1532+2344 15 17 24 84.6 43.9 -0.3 -134.6 -6 4464 15 18 24 15 18 48 =1530+239 15 17 54 84.7 43.0 -0.3 -135.5 24 4470 15 18 19 Schedule for VLBA_MK (Code Mk ) 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 --- 15 18 59 ARP220 15 18 05 84.5 48.1 -0.3 -130.2 0 4470 15 18 59 15 22 59 --- 15 22 06 85.2 41.0 -0.2 -137.7 240 4532 15 19 00 15 23 12 J1532+2344 15 22 18 85.3 34.1 -0.2 -144.8 0 4532 15 23 12 15 24 42 =1530+239 15 23 49 85.5 30.5 -0.2 -148.5 90 4555 15 23 13 15 24 54 ARP220 15 24 01 85.4 36.9 -0.2 -142.0 0 4555 15 24 54 15 28 54 --- 15 28 02 85.9 26.6 -0.1 -152.7 240 4617 15 24 55 15 29 08 J1532+2344 15 28 15 85.9 18.2 -0.1 -161.3 0 4617 15 29 08 15 30 38 =1530+239 15 29 46 86.0 13.4 -0.1 -166.2 90 4640 15 29 09 15 31 37 OQ208 15 30 46 69.3 -61.6 1.4 109.8 0 4640 15 31 37 15 32 37 --- 15 31 46 69.1 -61.9 1.4 109.5 60 4656 15 31 38 15 32 37 OQ208 15 31 46 69.1 -61.9 1.4 109.5 -6 4656 15 32 43 15 36 37 --- 15 35 46 68.3 -62.6 1.5 108.3 234 4716 15 32 38 15 37 30 J1532+2344 15 36 39 86.1 -9.7 0.0 170.0 7 4716 15 37 30 15 38 30 =1530+239 15 37 39 86.0 -13.0 0.1 166.7 60 4732 15 37 31 15 38 30 J1532+2344 15 37 39 86.0 -13.0 0.1 166.7 -6 4732 15 38 36 15 39 00 =1530+239 15 38 09 86.0 -14.6 0.1 165.0 24 4738 15 38 31 15 39 12 ARP220 15 38 22 86.3 -8.7 0.0 171.1 0 4738 15 39 12 15 43 12 --- 15 42 22 86.1 -22.1 0.1 157.3 240 4800 15 39 13 15 43 24 J1532+2344 15 42 34 85.6 -27.5 0.1 151.7 0 4800 15 43 24 15 44 54 =1530+239 15 44 04 85.5 -31.4 0.2 147.7 90 4823 15 43 25 15 45 04 ARP220 15 44 15 85.9 -27.6 0.1 151.6 0 4823 15 45 04 15 49 04 --- 15 48 15 85.4 -37.7 0.2 141.1 240 4885 15 45 05 15 49 14 J1532+2344 15 48 25 84.9 -40.8 0.2 137.9 0 4885 15 49 14 15 50 14 =1530+239 15 49 26 84.7 -42.6 0.3 135.9 60 4900 15 49 15 15 50 14 J1532+2344 15 49 26 84.7 -42.6 0.3 135.9 -6 4900 15 50 20 15 50 44 =1530+239 15 49 56 84.6 -43.5 0.3 135.0 24 4906 15 50 15 15 50 54 ARP220 15 50 05 85.1 -41.6 0.2 137.1 0 4906 15 50 54 15 54 54 --- 15 54 06 84.4 -48.5 0.3 129.8 240 4968 15 50 45 15 55 03 J1532+2344 15 54 15 83.9 -50.1 0.3 128.0 0 4968 15 55 03 15 56 33 =1530+239 15 55 45 83.6 -52.0 0.4 126.0 90 4991 15 54 55 Schedule for VLBA_MK (Code Mk ) 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 --- 15 56 42 ARP220 15 55 54 84.1 -51.1 0.3 127.1 0 4991 15 56 42 16 00 42 --- 15 59 54 83.4 -55.9 0.4 121.9 240 5053 15 56 34 16 00 51 J1532+2344 16 00 03 82.8 -56.6 0.4 121.0 0 5053 16 00 51 16 01 51 =1530+239 16 01 04 82.6 -57.5 0.5 120.0 60 5069 16 00 43 16 01 51 J1532+2344 16 01 04 82.6 -57.5 0.5 120.0 -6 5069 16 01 57 16 02 21 =1530+239 16 01 34 82.5 -57.9 0.5 119.5 24 5075 16 01 52 16 02 29 ARP220 16 01 43 83.0 -57.7 0.4 119.9 0 5075 16 02 29 16 06 29 --- 16 05 43 82.2 -61.0 0.5 116.2 240 5137 16 02 22 16 06 38 J1532+2344 16 05 52 81.6 -61.2 0.5 115.8 0 5137 16 06 38 16 08 08 =1530+239 16 07 23 81.3 -62.2 0.6 114.7 90 5160 16 06 30 16 08 17 ARP220 16 07 32 81.8 -62.3 0.5 114.8 0 5160 16 08 17 16 12 17 --- 16 11 32 81.0 -64.8 0.6 112.0 240 5222 16 08 09 16 12 26 J1532+2344 16 11 41 80.4 -64.7 0.6 111.8 0 5222 16 12 26 16 13 26 =1530+239 16 12 41 80.2 -65.2 0.6 111.2 60 5237 16 12 18 16 13 26 J1532+2344 16 12 41 80.2 -65.2 0.6 111.2 -6 5237 16 13 32 16 13 56 =1530+239 16 13 12 80.1 -65.4 0.7 110.9 24 5243 16 13 27 16 14 05 ARP220 16 13 20 80.6 -65.7 0.6 110.8 0 5243 16 14 05 16 18 05 --- 16 17 21 79.7 -67.5 0.7 108.7 240 5305 16 13 57 16 18 14 J1532+2344 16 17 30 79.1 -67.3 0.7 108.7 0 5305 16 18 14 16 19 44 =1530+239 16 19 00 78.8 -67.8 0.8 108.0 90 5328 16 18 06 16 19 53 ARP220 16 19 09 79.3 -68.2 0.7 107.8 0 5328 16 19 53 16 23 53 --- 16 23 10 78.5 -69.6 0.8 106.0 240 5390 16 19 45 16 24 02 J1532+2344 16 23 19 77.9 -69.3 0.8 106.1 0 5390 16 24 02 16 25 32 =1530+239 16 24 49 77.5 -69.7 0.9 105.6 90 5413 16 23 54 16 26 24 OQ208 16 25 41 57.6 -68.0 2.3 97.5 2 5413 16 26 24 16 27 24 --- 16 26 42 57.3 -68.1 2.3 97.4 60 5429 16 26 25 16 27 24 OQ208 16 26 42 57.3 -68.1 2.3 97.4 -6 5429 16 27 30 16 31 24 --- 16 30 42 56.5 -68.3 2.4 96.7 234 5489 16 27 25 16 32 15 J1532+2344 16 31 33 76.0 -71.4 1.0 103.2 1 5489 16 32 15 16 33 15 =1530+239 16 32 33 75.8 -71.6 1.0 102.9 60 5504 16 32 16 Schedule for VLBA_MK (Code Mk ) 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 --- 16 33 15 J1532+2344 16 32 33 75.8 -71.6 1.0 102.9 -6 5504 16 33 21 16 33 45 =1530+239 16 33 03 75.7 -71.7 1.0 102.8 24 5511 16 33 16 16 33 54 ARP220 16 33 12 76.2 -72.2 1.0 102.5 0 5511 16 33 54 16 37 54 --- 16 37 13 75.3 -73.0 1.0 101.3 240 5572 16 33 46 16 38 03 J1532+2344 16 37 22 74.7 -72.5 1.1 101.6 0 5572 16 38 03 16 39 33 =1530+239 16 38 52 74.4 -72.8 1.1 101.2 90 5596 16 37 55 16 39 42 ARP220 16 39 01 74.9 -73.3 1.1 100.9 0 5596 16 39 42 16 43 42 --- 16 43 02 74.0 -73.9 1.1 99.9 240 5657 16 39 34 16 43 51 J1532+2344 16 43 11 73.4 -73.4 1.2 100.1 0 5657 16 43 51 16 44 51 =1530+239 16 44 11 73.2 -73.6 1.2 99.9 60 5673 16 43 43 16 44 51 J1532+2344 16 44 11 73.2 -73.6 1.2 99.9 -6 5673 16 44 57 16 45 21 =1530+239 16 44 41 73.1 -73.6 1.2 99.8 24 5679 16 44 52 16 45 30 ARP220 16 44 50 73.6 -74.2 1.1 99.5 0 5679 16 45 30 16 49 30 --- 16 48 51 72.7 -74.7 1.2 98.6 240 5741 16 45 22 16 49 39 J1532+2344 16 49 00 72.1 -74.2 1.3 98.8 0 5741 16 49 39 16 51 09 =1530+239 16 50 30 71.8 -74.3 1.3 98.5 90 5764 16 49 31 16 51 18 ARP220 16 50 39 72.3 -74.9 1.2 98.2 0 5764 16 51 18 16 55 18 --- 16 54 39 71.4 -75.3 1.3 97.4 240 5826 16 51 10 16 55 26 J1532+2344 16 54 48 70.8 -74.8 1.4 97.7 0 5826 16 55 26 16 56 26 =1530+239 16 55 49 70.6 -74.9 1.4 97.5 60 5841 16 55 19 16 56 26 J1532+2344 16 55 49 70.6 -74.9 1.4 97.5 -6 5841 16 56 32 16 56 56 =1530+239 16 56 19 70.5 -74.9 1.4 97.4 24 5848 16 56 27 16 57 05 ARP220 16 56 28 71.0 -75.4 1.3 97.1 0 5848 16 57 05 17 01 05 --- 17 00 28 70.0 -75.7 1.4 96.4 240 5909 16 56 57 17 01 14 J1532+2344 17 00 37 69.5 -75.3 1.4 96.6 0 5909 17 01 14 17 02 44 =1530+239 17 02 07 69.1 -75.4 1.5 96.4 90 5933 17 01 06 17 02 53 ARP220 17 02 16 69.6 -75.9 1.4 96.1 0 5933 17 02 53 17 06 53 --- 17 06 17 68.7 -76.1 1.5 95.5 240 5994 17 02 45 17 07 02 J1532+2344 17 06 26 68.2 -75.6 1.5 95.7 0 5994 17 07 02 17 08 02 =1530+239 17 07 26 67.9 -75.7 1.6 95.5 60 6010 17 06 54 Schedule for VLBA_MK (Code Mk ) 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 --- 17 08 02 J1532+2344 17 07 26 67.9 -75.7 1.6 95.5 -6 6010 17 08 08 17 08 32 =1530+239 17 07 56 67.8 -75.7 1.6 95.4 24 6016 17 08 03 17 08 41 ARP220 17 08 05 68.3 -76.2 1.5 95.2 0 6016 17 08 41 17 12 41 --- 17 12 06 67.4 -76.4 1.6 94.6 240 6078 17 08 33 17 12 50 J1532+2344 17 12 15 66.8 -76.0 1.6 94.8 0 6078 17 12 50 17 14 20 =1530+239 17 13 45 66.5 -76.0 1.7 94.6 90 6101 17 12 42 17 14 29 ARP220 17 13 54 67.0 -76.5 1.6 94.3 0 6101 17 14 29 17 18 29 --- 17 17 54 66.1 -76.7 1.7 93.8 240 6163 17 14 21 17 18 38 J1532+2344 17 18 03 65.5 -76.2 1.7 94.0 0 6163 17 18 38 17 19 38 =1530+239 17 19 03 65.3 -76.3 1.8 93.8 60 6178 17 18 30 17 19 38 J1532+2344 17 19 03 65.3 -76.3 1.8 93.8 -6 6178 17 19 44 17 20 08 =1530+239 17 19 34 65.2 -76.3 1.8 93.8 24 6185 17 19 39 17 20 16 ARP220 17 19 42 65.6 -76.8 1.7 93.5 0 6185 17 20 16 17 24 16 --- 17 23 43 64.7 -76.9 1.8 93.0 240 6246 17 20 09 17 24 25 J1532+2344 17 23 52 64.2 -76.4 1.8 93.2 0 6246 17 24 25 17 25 55 =1530+239 17 25 22 63.8 -76.5 1.9 93.0 90 6270 17 24 17 17 26 04 ARP220 17 25 31 64.3 -76.9 1.8 92.8 0 6270 17 26 04 17 30 04 --- 17 29 32 63.4 -77.0 1.9 92.3 240 6331 17 25 56 17 30 13 J1532+2344 17 29 41 62.9 -76.6 1.9 92.5 0 6331 17 30 13 17 31 13 =1530+239 17 30 41 62.6 -76.6 1.9 92.4 60 6347 17 30 05 17 31 13 J1532+2344 17 30 41 62.6 -76.6 1.9 92.4 -6 6347 17 31 19 17 31 43 =1530+239 17 31 11 62.5 -76.6 2.0 92.3 24 6353 17 31 14 17 31 52 ARP220 17 31 20 63.0 -77.1 1.9 92.1 0 6353 17 31 52 17 35 52 --- 17 35 20 62.1 -77.1 2.0 91.7 240 6415 17 31 44 17 36 01 J1532+2344 17 35 29 61.5 -76.7 2.0 91.8 0 6415 17 36 01 17 37 31 =1530+239 17 37 00 61.2 -76.7 2.1 91.7 90 6438 17 35 53 17 37 39 ARP220 17 37 08 61.7 -77.1 2.0 91.5 0 6438 17 37 39 17 41 39 --- 17 41 09 60.7 -77.2 2.1 91.0 240 6500 17 37 32 17 41 48 J1532+2344 17 41 18 60.2 -76.7 2.1 91.2 0 6500 17 41 48 17 42 48 =1530+239 17 42 18 60.0 -76.8 2.1 91.1 60 6515 17 41 40 Schedule for VLBA_MK (Code Mk ) 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 --- 17 42 48 J1532+2344 17 42 18 60.0 -76.8 2.1 91.1 -6 6515 17 42 54 17 43 18 =1530+239 17 42 48 59.9 -76.8 2.2 91.0 24 6522 17 42 49 17 43 27 ARP220 17 42 57 60.3 -77.2 2.1 90.8 0 6522 17 43 27 17 47 27 --- 17 46 58 59.4 -77.2 2.2 90.4 240 6583 17 43 19 17 47 36 J1532+2344 17 47 07 58.9 -76.8 2.2 90.6 0 6583 17 47 36 17 49 06 =1530+239 17 48 37 58.5 -76.8 2.2 90.4 90 6607 17 47 28 17 49 15 ARP220 17 48 46 59.0 -77.2 2.2 90.2 0 6607 17 49 15 17 53 15 --- 17 52 46 58.1 -77.2 2.3 89.8 240 6668 17 49 07 17 53 24 J1532+2344 17 52 55 57.5 -76.8 2.3 90.0 0 6668 17 53 24 17 54 43 =1530+239 17 54 14 57.2 -76.8 2.3 89.8 79 6689 17 53 16 17 54 51 ARP220 17 54 23 57.7 -77.2 2.3 89.7 0 6689 17 54 51 17 58 51 --- 17 58 24 56.8 -77.2 2.4 89.3 240 6751 17 54 44 17 59 00 J1532+2344 17 58 33 56.2 -76.8 2.4 89.4 0 6751 17 59 00 18 00 00 =1530+239 17 59 33 56.0 -76.8 2.4 89.3 60 6766 17 58 52 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: vc_d Setup group: 10 Station: VLBA_MK Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 8 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 Net SB= U U U U U U U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = A C A C A C A C VLBA FE= 6cm omit 6cm omit VLBA Synth= 13.6 4.1 13.6 The following frequency sets based on these setups were used. See the crd files for VLBA legacy system setups and pcal detection details. Frequency Set: 19 Setup file default. Used with PCAL = off LO sum= 4740.00 4740.00 4804.00 4804.00 4868.00 4868.00 4932.00 4932.00 BBC fr= 640.00 640.00 704.00 704.00 768.00 768.00 832.00 832.00 Bandwd= 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.00 VLBA legacy crd files using 4 channels based on RDBE channels: 3 4 5 6 CRD fr= 728.00 728.00 792.00 792.00 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 19 20 21 22 23 24 25 26 27 28 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * ARP220 15 32 46.905485 * 15 34 57.250000 15 35 57.471629 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