COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: 18cm global VLBI observations of Arp220 Exp. Code: GV022A Schedule Version: 5.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Eskil Varenius Address: Department of Earth and Space Sciences, Chalmers University of T Onsala Space Observatory 439 92 Onsala Sweden Phone: +46 31 772 55 45 EMAIL: varenius@chalmers.se Fax: +46(0)31 772 5590 Phone during observation: +46 31 772 55 45 Observing mode: 18cm 2Gbps global VLBI with phased D-array VLA Notes: Phase calibrator : J1532+2344 Fringe finder / pol. cal / bandpass cal : J1516+1932 VLA phase-up calibrator: J1520+2016 (3C318) Schedule for VLBA_MK (Code Mk ) Page 2 18cm global VLBI observations of Arp220 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- Next scan frequencies: 1504.25 1504.25 1568.25 1568.25 1632.25 1632.25 1696.25 1696.25 Next BBC frequencies: 895.75 895.75 831.75 831.75 767.75 767.75 703.75 703.75 Next scan bandwidths: 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.00 09 32 41 J1516+1932 09 36 34 10.7 73.0 -5.7 -72.6 0 0 09 32 41 09 33 41 =1514+197 09 37 34 10.9 73.1 -5.7 -72.7 60 15 09 32 42 09 33 51 J1516+1932 09 37 44 11.0 73.1 -5.7 -72.7 4 15 09 33 51 09 34 51 =1514+197 09 38 44 11.2 73.1 -5.6 -72.8 60 31 09 33 52 09 35 43 J1532+2344 09 39 37 9.1 68.0 -5.9 -72.3 40 31 09 35 43 09 36 43 =1530+239 09 40 37 9.4 68.1 -5.9 -72.4 60 46 09 35 44 09 37 03 ARP220 09 40 57 8.9 68.2 -5.9 -72.2 11 46 09 37 03 09 47 03 --- 09 50 58 11.1 68.9 -5.7 -73.1 600 201 09 37 04 09 47 23 J1532+2344 09 51 19 11.7 68.8 -5.7 -73.3 11 201 09 47 23 09 50 23 =1530+239 09 54 19 12.4 69.0 -5.7 -73.6 180 247 09 47 24 09 50 43 ARP220 09 54 39 11.9 69.1 -5.7 -73.4 11 247 09 50 43 10 00 43 --- 10 04 40 14.1 69.8 -5.5 -74.2 600 402 09 50 44 10 01 03 J1532+2344 10 05 00 14.7 69.7 -5.5 -74.5 11 402 10 01 03 10 02 03 =1530+239 10 06 00 14.9 69.8 -5.5 -74.6 60 417 10 01 04 10 02 21 J1532+2344 10 06 19 15.0 69.8 -5.5 -74.6 12 417 10 02 21 10 04 21 =1530+239 10 08 19 15.5 69.9 -5.4 -74.8 120 448 10 02 22 10 04 41 ARP220 10 08 39 15.0 70.0 -5.5 -74.6 10 448 10 04 41 10 14 41 --- 10 18 40 17.2 70.7 -5.3 -75.4 600 603 10 04 42 10 15 01 J1532+2344 10 19 00 17.8 70.6 -5.2 -75.7 11 603 10 15 01 10 18 01 =1530+239 10 22 01 18.5 70.8 -5.2 -75.9 180 649 10 15 02 10 18 20 ARP220 10 22 20 18.0 70.9 -5.2 -75.7 10 649 10 18 20 10 28 20 --- 10 32 22 20.2 71.5 -5.1 -76.5 600 804 10 18 21 10 29 16 J1516+1932 10 33 18 23.6 76.7 -4.7 -76.3 41 804 10 29 16 10 30 16 =1514+197 10 34 18 23.8 76.8 -4.7 -76.3 60 819 10 29 17 10 30 22 J1516+1932 10 34 24 23.8 76.8 -4.7 -76.3 0 819 10 30 22 10 31 22 =1514+197 10 35 24 24.1 76.9 -4.7 -76.4 60 835 10 30 17 10 32 14 J1532+2344 10 36 17 21.7 71.6 -5.0 -77.1 39 835 10 32 14 10 35 14 =1530+239 10 39 17 22.3 71.7 -4.9 -77.3 180 881 10 32 15 Schedule for VLBA_MK (Code Mk ) Page 3 18cm global VLBI observations of Arp220 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- 10 35 33 ARP220 10 39 37 21.9 71.9 -4.9 -77.1 10 881 10 35 33 10 45 33 --- 10 49 38 24.1 72.4 -4.8 -77.9 600 1036 10 35 34 10 45 53 J1532+2344 10 49 58 24.7 72.3 -4.7 -78.2 11 1036 10 45 53 10 48 53 =1530+239 10 52 59 25.4 72.5 -4.7 -78.4 180 1082 10 45 54 10 49 12 ARP220 10 53 18 24.9 72.6 -4.7 -78.1 10 1082 10 49 12 10 59 12 --- 11 03 20 27.2 73.1 -4.5 -78.9 600 1237 10 49 13 11 01 06 J1532+2344 11 05 13 28.1 73.1 -4.5 -79.3 104 1237 11 01 06 11 02 06 =1530+239 11 06 13 28.4 73.1 -4.5 -79.4 60 1252 11 01 07 11 02 15 J1532+2344 11 06 22 28.4 73.1 -4.5 -79.4 3 1252 11 02 12 11 04 15 =1530+239 11 08 23 28.9 73.2 -4.4 -79.6 120 1284 11 02 07 11 04 30 ARP220 11 08 38 28.4 73.4 -4.5 -79.3 6 1284 11 04 30 11 14 30 --- 11 18 39 30.6 73.8 -4.3 -80.1 600 1438 11 04 31 11 14 45 J1532+2344 11 18 55 31.2 73.7 -4.2 -80.4 7 1438 11 14 45 11 17 45 =1530+239 11 21 55 31.9 73.8 -4.2 -80.6 180 1485 11 14 46 11 18 00 ARP220 11 22 10 31.4 74.0 -4.2 -80.3 6 1485 11 18 00 11 28 00 --- 11 32 12 33.7 74.4 -4.1 -81.1 600 1639 11 18 01 11 28 33 3C318 11 32 45 36.7 79.1 -3.8 -79.9 19 1639 11 28 33 11 29 33 --- 11 33 45 36.9 79.1 -3.8 -79.9 60 1655 11 28 34 11 29 44 J1516+1932 11 33 56 37.6 80.2 -3.7 -79.6 2 1655 11 29 44 11 30 44 =1514+197 11 34 57 37.8 80.3 -3.7 -79.6 60 1670 11 29 45 11 30 50 J1516+1932 11 35 03 37.8 80.3 -3.7 -79.6 0 1670 11 30 50 11 31 50 =1514+197 11 36 03 38.1 80.3 -3.7 -79.7 60 1686 11 30 45 11 32 43 J1532+2344 11 36 56 35.3 74.5 -3.9 -81.8 39 1686 11 32 43 11 35 43 =1530+239 11 39 56 36.0 74.6 -3.9 -82.0 180 1732 11 32 44 11 35 58 ARP220 11 40 11 35.5 74.8 -3.9 -81.7 6 1732 11 35 58 11 45 58 --- 11 50 13 37.8 75.2 -3.8 -82.5 600 1887 11 35 59 11 46 13 J1532+2344 11 50 28 38.4 75.0 -3.7 -82.8 7 1887 11 46 13 11 49 13 =1530+239 11 53 29 39.1 75.1 -3.7 -83.1 180 1933 11 46 14 11 49 28 ARP220 11 53 44 38.6 75.3 -3.7 -82.7 6 1933 11 49 28 11 59 28 --- 12 03 45 40.9 75.7 -3.5 -83.5 600 2088 11 49 29 Schedule for VLBA_MK (Code Mk ) Page 4 18cm global VLBI observations of Arp220 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- 11 59 44 J1532+2344 12 04 01 41.5 75.4 -3.5 -83.9 7 2088 11 59 44 12 00 44 =1530+239 12 05 01 41.7 75.5 -3.5 -84.0 60 2103 11 59 45 12 01 34 J1532+2344 12 05 51 41.9 75.5 -3.5 -84.0 44 2103 12 01 34 12 03 34 =1530+239 12 07 51 42.3 75.6 -3.4 -84.2 120 2134 12 01 35 12 03 49 ARP220 12 08 06 41.9 75.8 -3.5 -83.8 6 2134 12 03 49 12 13 49 --- 12 18 08 44.2 76.1 -3.3 -84.6 600 2289 12 03 50 12 14 04 J1532+2344 12 18 24 44.7 75.9 -3.3 -85.1 7 2289 12 14 04 12 17 04 =1530+239 12 21 24 45.4 76.0 -3.2 -85.3 180 2335 12 14 05 12 17 19 ARP220 12 21 39 45.0 76.2 -3.2 -84.9 6 2335 12 17 19 12 27 19 --- 12 31 41 47.3 76.5 -3.1 -85.7 600 2490 12 17 20 12 27 44 J1516+1932 12 32 06 51.1 83.2 -2.8 -82.3 9 2490 12 27 44 12 28 44 =1514+197 12 33 06 51.3 83.3 -2.7 -82.3 60 2505 12 27 45 12 28 52 J1516+1932 12 33 14 51.4 83.3 -2.7 -82.4 2 2505 12 28 51 12 29 52 =1514+197 12 34 15 51.6 83.3 -2.7 -82.4 60 2521 12 28 45 12 30 14 J1532+2344 12 34 36 48.4 76.3 -3.0 -86.4 7 2521 12 30 14 12 33 14 =1530+239 12 37 37 49.1 76.3 -2.9 -86.6 180 2567 12 30 15 12 33 24 ARP220 12 37 47 48.7 76.6 -3.0 -86.2 2 2567 12 33 24 12 43 24 --- 12 47 49 50.9 76.9 -2.8 -87.0 600 2722 12 33 25 12 43 35 J1532+2344 12 47 59 51.5 76.5 -2.8 -87.5 2 2722 12 43 35 12 46 35 =1530+239 12 51 00 52.2 76.6 -2.7 -87.8 180 2768 12 43 36 12 46 45 ARP220 12 51 10 51.7 76.9 -2.7 -87.3 2 2768 12 46 45 12 56 45 --- 13 01 12 54.0 77.1 -2.6 -88.2 600 2923 12 46 46 12 56 56 J1532+2344 13 01 22 54.6 76.7 -2.5 -88.7 1 2923 12 56 56 12 57 56 =1530+239 13 02 22 54.8 76.7 -2.5 -88.8 60 2938 12 56 57 12 58 25 J1532+2344 13 02 52 54.9 76.7 -2.5 -88.9 23 2938 12 58 25 13 00 25 =1530+239 13 04 52 55.4 76.7 -2.5 -89.1 120 2969 12 58 26 13 00 35 ARP220 13 05 02 54.9 77.1 -2.5 -88.6 1 2969 13 00 35 13 10 35 --- 13 15 04 57.2 77.2 -2.3 -89.5 600 3124 13 00 36 13 10 45 J1532+2344 13 15 14 57.7 76.8 -2.3 -90.1 1 3124 13 10 44 13 13 45 =1530+239 13 18 14 58.4 76.7 -2.3 -90.4 180 3170 13 10 36 Schedule for VLBA_MK (Code Mk ) Page 5 18cm global VLBI observations of Arp220 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- 13 13 55 ARP220 13 18 24 58.0 77.2 -2.3 -89.8 1 3170 13 13 54 13 23 55 --- 13 28 26 60.3 77.2 -2.1 -90.8 600 3325 13 13 46 13 24 16 J1516+1932 13 28 47 64.4 86.1 -1.8 -84.6 4 3325 13 24 16 13 25 16 =1514+197 13 29 47 64.6 86.1 -1.8 -84.7 60 3341 13 24 17 13 25 24 J1516+1932 13 29 56 64.6 86.1 -1.8 -84.7 3 3341 13 25 22 13 26 24 =1514+197 13 30 56 64.9 86.2 -1.8 -84.7 60 3357 13 25 17 13 26 47 J1532+2344 13 31 18 61.4 76.6 -2.0 -91.8 7 3357 13 26 47 13 29 47 =1530+239 13 34 19 62.1 76.6 -2.0 -92.2 180 3403 13 26 48 13 29 56 ARP220 13 34 28 61.6 77.1 -2.0 -91.5 1 3403 13 29 56 13 39 56 --- 13 44 30 63.9 76.9 -1.9 -92.7 600 3558 13 29 48 13 40 06 J1532+2344 13 44 39 64.5 76.3 -1.8 -93.4 0 3558 13 40 05 13 43 06 =1530+239 13 47 40 65.2 76.2 -1.8 -93.8 180 3605 13 39 57 13 43 15 ARP220 13 47 49 64.7 76.8 -1.8 -93.1 0 3605 13 43 14 13 53 15 --- 13 57 51 67.0 76.5 -1.6 -94.4 600 3759 13 43 07 13 53 24 J1532+2344 13 58 00 67.5 75.8 -1.6 -95.3 0 3759 13 53 24 13 54 24 =1530+239 13 59 00 67.7 75.7 -1.6 -95.4 60 3775 13 53 16 13 54 54 J1532+2344 13 59 30 67.9 75.7 -1.6 -95.5 24 3775 13 54 54 13 56 54 =1530+239 14 01 31 68.3 75.5 -1.5 -95.8 120 3806 13 54 55 13 57 03 ARP220 14 01 40 67.9 76.3 -1.6 -94.9 0 3806 13 57 03 14 07 03 --- 14 11 41 70.2 75.6 -1.4 -96.5 600 3960 13 56 55 14 07 12 J1532+2344 14 11 50 70.7 74.8 -1.4 -97.6 0 3960 14 07 12 14 10 12 =1530+239 14 14 51 71.3 74.5 -1.3 -98.2 180 4007 14 07 04 14 10 21 ARP220 14 15 00 70.9 75.4 -1.3 -97.1 0 4007 14 10 21 14 20 21 --- 14 25 01 73.2 74.3 -1.2 -99.1 600 4161 14 10 13 14 20 30 J1532+2344 14 25 10 73.7 73.2 -1.1 -100.4 0 4161 14 20 30 14 21 30 =1530+239 14 26 10 73.9 73.0 -1.1 -100.7 60 4177 14 20 22 14 22 00 J1532+2344 14 26 40 74.0 73.0 -1.1 -100.8 24 4177 14 22 00 14 24 00 =1530+239 14 28 41 74.5 72.6 -1.1 -101.3 120 4207 14 22 01 14 24 09 ARP220 14 28 49 74.0 73.8 -1.1 -100.0 0 4207 14 24 09 14 34 09 --- 14 38 51 76.3 72.0 -0.9 -102.7 600 4362 14 24 01 Schedule for VLBA_MK (Code Mk ) Page 6 18cm global VLBI observations of Arp220 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- 14 34 17 J1532+2344 14 39 00 76.8 70.5 -0.9 -104.4 0 4362 14 34 17 14 37 17 =1530+239 14 42 00 77.4 69.7 -0.9 -105.5 180 4408 14 34 10 14 37 26 ARP220 14 42 09 77.0 71.3 -0.9 -103.8 0 4408 14 37 26 14 47 26 --- 14 52 11 79.3 68.2 -0.7 -107.7 600 4563 14 37 18 14 47 51 J1516+1932 14 52 35 84.1 92.1 -0.4 -85.8 0 4563 14 47 51 14 48 51 =1514+197 14 53 36 84.3 92.3 -0.4 -85.7 60 4578 14 47 52 14 48 57 J1516+1932 14 53 42 84.3 92.3 -0.4 -85.7 0 4578 14 48 57 14 49 57 =1514+197 14 54 42 84.6 92.5 -0.4 -85.6 60 4594 14 48 52 14 50 24 J1532+2344 14 55 09 80.3 64.8 -0.6 -111.7 0 4594 14 50 24 14 53 24 =1530+239 14 58 09 80.9 63.1 -0.6 -113.6 180 4640 14 50 25 14 53 33 ARP220 14 58 19 80.6 65.6 -0.6 -111.0 0 4640 14 53 33 15 03 33 --- 15 08 21 82.7 58.9 -0.5 -118.5 600 4795 14 53 25 15 03 44 J1532+2344 15 08 31 83.0 55.1 -0.4 -122.5 0 4795 15 03 44 15 06 44 =1530+239 15 11 32 83.6 51.8 -0.4 -126.1 180 4841 15 03 45 15 06 55 ARP220 15 11 43 83.3 55.8 -0.4 -122.0 0 4841 15 06 55 15 16 55 --- 15 21 44 85.1 41.1 -0.2 -137.7 600 4996 15 06 56 15 17 07 J1532+2344 15 21 57 85.3 34.2 -0.2 -144.7 0 4996 15 17 07 15 20 07 =1530+239 15 24 57 85.6 26.8 -0.1 -152.4 180 5042 15 17 08 15 20 20 ARP220 15 25 10 85.6 33.4 -0.2 -145.6 0 5042 15 20 20 15 30 10 --- 15 35 02 86.4 2.4 -0.0 -177.5 590 5194 15 20 21 15 30 23 J1532+2344 15 35 15 86.1 -5.9 0.0 174.0 0 5194 15 30 23 15 31 23 =1530+239 15 36 15 86.1 -9.2 0.0 170.6 60 5210 15 30 24 15 31 48 J1532+2344 15 36 40 86.1 -10.6 0.1 169.1 18 5210 15 31 48 15 33 48 =1530+239 15 38 41 85.9 -17.0 0.1 162.6 120 5241 15 31 49 15 34 00 ARP220 15 38 53 86.3 -11.3 0.1 168.4 0 5241 15 34 00 15 44 00 --- 15 48 54 85.2 -39.5 0.2 139.3 600 5395 15 34 01 15 44 10 J1532+2344 15 49 04 84.7 -42.3 0.3 136.3 0 5395 15 44 10 15 47 10 =1530+239 15 52 05 84.2 -47.2 0.3 131.1 180 5442 15 44 01 15 47 19 ARP220 15 52 13 84.7 -45.8 0.3 132.7 0 5442 15 47 19 15 57 19 --- 16 02 15 82.8 -58.3 0.4 119.3 600 5596 15 47 11 Schedule for VLBA_MK (Code Mk ) Page 7 18cm global VLBI observations of Arp220 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- 15 57 28 J1532+2344 16 02 24 82.3 -58.7 0.5 118.6 0 5596 15 57 28 15 58 28 =1530+239 16 03 24 82.1 -59.5 0.5 117.7 60 5612 15 57 20 15 58 57 J1532+2344 16 03 54 82.0 -59.9 0.5 117.3 23 5612 15 58 57 16 00 57 =1530+239 16 05 54 81.5 -61.3 0.5 115.7 120 5643 15 58 58 16 01 06 ARP220 16 06 03 82.1 -61.3 0.5 115.9 0 5643 16 01 06 16 11 06 --- 16 16 05 79.9 -67.0 0.7 109.3 600 5797 16 00 58 16 11 15 J1532+2344 16 16 14 79.4 -66.7 0.7 109.3 0 5797 16 11 15 16 14 15 =1530+239 16 19 14 78.7 -67.9 0.8 107.9 180 5843 16 11 07 16 14 24 ARP220 16 19 23 79.2 -68.3 0.7 107.7 0 5843 16 14 24 16 24 24 --- 16 29 25 77.0 -71.3 0.9 103.7 600 5998 16 14 16 16 24 44 J1516+1932 16 29 45 73.0 -88.1 1.2 85.9 0 5998 16 24 44 16 25 44 =1514+197 16 30 45 72.8 -88.0 1.2 85.8 60 6014 16 24 45 16 25 53 J1516+1932 16 30 54 72.8 -88.0 1.2 85.8 3 6014 16 25 51 16 26 53 =1514+197 16 31 54 72.5 -87.9 1.2 85.8 60 6030 16 25 45 16 27 15 J1532+2344 16 32 16 75.8 -71.5 1.0 103.0 2 6030 16 27 15 16 30 15 =1530+239 16 35 17 75.2 -72.1 1.0 102.2 180 6076 16 27 16 16 30 24 ARP220 16 35 25 75.7 -72.6 1.0 101.9 0 6076 16 30 24 16 40 24 --- 16 45 27 73.4 -74.2 1.2 99.3 600 6231 16 30 16 16 40 33 J1532+2344 16 45 36 72.8 -73.7 1.2 99.6 0 6231 16 40 33 16 43 33 =1530+239 16 48 37 72.2 -74.1 1.3 98.9 180 6277 16 40 25 16 43 42 ARP220 16 48 45 72.6 -74.6 1.2 98.6 0 6277 16 43 42 16 53 42 --- 16 58 47 70.4 -75.6 1.4 96.7 600 6432 16 43 34 16 53 51 J1532+2344 16 58 56 69.8 -75.1 1.4 96.9 0 6432 16 53 51 16 54 51 =1530+239 16 59 56 69.6 -75.2 1.4 96.8 60 6447 16 53 43 16 55 20 J1532+2344 17 00 26 69.5 -75.2 1.4 96.7 23 6447 16 55 20 16 57 20 =1530+239 17 02 26 69.0 -75.3 1.5 96.3 120 6478 16 55 21 16 57 29 ARP220 17 02 35 69.5 -75.8 1.4 96.1 0 6478 16 57 29 17 07 29 --- 17 12 37 67.2 -76.4 1.6 94.5 600 6633 16 57 21 17 07 38 J1532+2344 17 12 46 66.7 -75.9 1.7 94.7 0 6633 17 07 38 17 10 38 =1530+239 17 15 46 66.0 -76.1 1.7 94.3 180 6679 17 07 30 Schedule for VLBA_MK (Code Mk ) Page 8 18cm global VLBI observations of Arp220 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- 17 10 58 J1516+1932 17 16 06 62.2 -85.6 2.0 84.3 4 6679 17 10 58 17 11 58 =1514+197 17 17 06 61.9 -85.5 2.0 84.2 60 6694 17 10 59 17 12 06 J1516+1932 17 17 15 61.9 -85.5 2.0 84.2 2 6694 17 12 04 17 13 06 =1514+197 17 18 15 61.7 -85.5 2.0 84.2 60 6710 17 11 59 17 13 28 J1532+2344 17 18 37 65.3 -76.2 1.8 93.9 6 6710 17 13 28 17 16 28 =1530+239 17 21 37 64.6 -76.3 1.8 93.5 180 6757 17 13 29 17 16 37 ARP220 17 21 46 65.1 -76.8 1.8 93.3 0 6757 17 16 37 17 23 07 --- 17 28 17 63.6 -77.0 1.9 92.5 390 6857 17 16 29 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess117.L2048glob Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq_RDBE.dat: v20cm_2 FD filtered above 1760. SC filtered above 1740. ****** Only 511.50 of 512.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. 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= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U U U U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C VLBA FE= 20cm omit 20cm omit VLBA Synth= 14.6 2.4 14.6 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: 12 Setup file default. Used with PCAL = off LO sum= 1504.25 1504.25 1568.25 1568.25 1632.25 1632.25 1696.25 1696.25 BBC fr= 895.75 895.75 831.75 831.75 767.75 767.75 703.75 703.75 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= 807.75 807.75 743.75 743.75 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 12 13 14 15 16 17 19 20 21 22 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) * 3C318 15 17 50.628003 * 15 20 05.489700 15 20 51.619460 0.00 20 26 53.10030 * 20 16 05.61100 20 12 19.37298 0.00 From catalog imbedded in main SCHED input file. Pos. from https://science.nrao.edu/facilities/vla/observing/callist#R15 * ARP220 15 32 46.905485 * 15 34 57.250000 15 35 41.749984 0.00 23 40 07.75728 * 23 30 11.33000 23 26 41.88094 0.00 From catalog imbedded in main SCHED input file. Pos. from Batejat. et al 2011 * 3C286 13 28 49.657758 * 13 31 08.288051 13 31 56.137992 0.18 J1331+3030 30 45 58.64059 * 30 30 32.95924 30 25 07.99101 0.17 1328+307 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc J1331+30 GSFC 2015a astro solution, unpublished 225 observations. 1514+197 15 14 40.985840 * 15 16 56.796162 15 17 43.268587 0.01 * J1516+1932 19 43 10.94252 * 19 32 12.99209 19 28 23.33097 0.02 J1516+19 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 2699 observations. 1530+239 15 30 36.092767 * 15 32 46.345222 15 33 30.823776 0.10 * J1532+2344 23 54 09.32921 * 23 44 05.26804 23 40 33.11927 0.17 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 90 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. 'Core' scans are those for which PREEMPT is not 'EXTRA'. The 'DOSCANS' columns are for scans in the range selected by DOSCANS Those are the scans sent to the Vex and other files Source Setup file Frequency sets Core scans (Hours) DOSCANS (duplicates not shown) Scan Baseline Scan Baseline 3C318 sess117.L2048glob 12 18 0.350 0.917 0.433 0.917 ARP220 sess117.L2048glob 1 2 3 4 5 6 7 8 11 12 18 23 8.331 866.845 9.606 914.411 3C286 sess117.L2048glob 18 0.083 0.000 0.083 0.000 J1516+1932 sess117.L2048glob 1 2 3 4 5 6 7 8 11 12 18 23 0.367 34.836 0.433 36.969 J1532+2344 sess117.L2048glob 1 2 3 4 5 6 7 8 11 12 18 23 2.467 256.869 2.917 272.768 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) 3C318 111.1 ARP220 107.8 3C286 134.1 J1516+1932 111.9 J1532+2344 108.3 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