COVER INFORMATION Station: VLA27 (Code Y ) 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 VLA27 (Code Y ) 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: 465.25 465.25 529.25 529.25 593.25 593.25 657.25 657.25 Next scan bandwidths: 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.00 05 50 00 3C286 09 04 37 34.4 73.9 -4.5 -67.3 0 0 Stopped 05 59 00 --- 09 13 39 36.2 74.8 -4.3 -67.9 540 0 05 59 00 3C286 09 13 39 36.2 74.8 -4.3 -67.9 -6 0 05 59 06 06 04 00 --- 09 18 40 37.2 75.3 -4.2 -68.3 294 76 05 59 01 06 05 25 3C318 09 20 05 11.0 72.9 -6.0 -57.5 0 76 06 05 25 06 08 25 --- 09 23 05 11.6 73.3 -6.0 -57.7 180 122 06 05 26 06 08 44 J1532+2344 09 23 24 11.0 68.8 -6.2 -57.5 6 122 06 08 44 06 11 44 =1530+239 09 26 24 11.6 69.2 -6.1 -57.7 180 168 06 08 45 06 12 09 ARP220 09 26 50 11.2 69.1 -6.1 -57.5 18 168 06 12 09 06 22 09 --- 09 36 52 13.1 70.4 -6.0 -58.3 600 323 06 12 10 06 22 35 J1532+2344 09 37 17 13.7 70.5 -5.9 -58.5 18 323 06 22 35 06 25 35 =1530+239 09 40 18 14.3 70.9 -5.9 -58.7 180 369 06 22 36 06 26 00 ARP220 09 40 43 13.9 70.9 -5.9 -58.5 18 369 06 26 00 06 36 00 --- 09 50 45 15.8 72.1 -5.7 -59.2 600 524 06 26 01 06 36 14 3C318 09 50 58 17.2 76.9 -5.5 -59.3 0 524 06 36 14 06 37 14 --- 09 51 59 17.4 77.0 -5.5 -59.3 60 539 06 36 15 06 37 21 J1516+1932 09 52 07 17.7 78.1 -5.4 -59.3 0 539 06 37 21 06 38 21 =1514+197 09 53 07 17.9 78.2 -5.4 -59.3 60 555 06 37 15 06 39 12 J1532+2344 09 53 58 17.0 72.5 -5.7 -59.6 36 555 06 39 12 06 42 12 =1530+239 09 56 58 17.6 72.9 -5.6 -59.8 180 601 06 39 13 06 42 38 ARP220 09 57 24 17.1 72.9 -5.6 -59.6 18 601 06 42 38 06 52 38 --- 10 07 25 19.1 74.1 -5.5 -60.3 600 756 06 42 39 06 53 04 J1532+2344 10 07 51 19.8 74.2 -5.4 -60.5 18 756 06 53 04 06 56 04 =1530+239 10 10 52 20.4 74.6 -5.4 -60.7 180 802 06 53 05 06 56 29 ARP220 10 11 17 19.9 74.6 -5.4 -60.5 18 802 06 56 29 07 06 29 --- 10 21 19 21.9 75.8 -5.2 -61.1 600 957 06 56 30 07 06 43 3C318 10 21 33 23.4 80.7 -5.0 -60.6 0 957 07 06 43 07 07 43 --- 10 22 33 23.6 80.8 -5.0 -60.6 60 972 07 06 44 Schedule for VLA27 (Code Y ) 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 --- 07 08 15 J1532+2344 10 23 05 22.8 76.0 -5.2 -61.4 18 972 07 08 15 07 10 15 =1530+239 10 25 05 23.2 76.3 -5.1 -61.5 120 1003 07 08 16 07 10 40 ARP220 10 25 31 22.8 76.3 -5.2 -61.3 18 1003 07 10 40 07 20 40 --- 10 35 32 24.8 77.5 -5.0 -61.8 600 1158 07 10 41 07 21 06 J1532+2344 10 35 58 25.4 77.6 -5.0 -62.0 18 1158 07 21 06 07 24 06 =1530+239 10 38 58 26.0 77.9 -4.9 -62.2 180 1204 07 21 07 07 24 31 ARP220 10 39 24 25.6 77.9 -4.9 -62.0 18 1204 07 24 31 07 34 31 --- 10 49 26 27.6 79.1 -4.8 -62.5 600 1359 07 24 32 07 34 45 3C318 10 49 40 29.2 84.3 -4.5 -61.4 0 1359 07 34 45 07 35 45 --- 10 50 40 29.4 84.4 -4.5 -61.4 60 1374 07 34 46 07 36 45 J1516+1932 10 51 40 29.9 85.7 -4.4 -61.2 52 1374 07 36 45 07 37 45 =1514+197 10 52 40 30.1 85.8 -4.4 -61.2 60 1390 07 36 46 07 38 38 J1532+2344 10 53 33 29.0 79.7 -4.7 -62.8 37 1390 07 38 38 07 41 38 =1530+239 10 56 34 29.6 80.0 -4.6 -63.0 180 1436 07 38 39 07 41 59 ARP220 10 56 55 29.1 80.0 -4.6 -62.8 13 1436 07 41 59 07 51 59 --- 11 06 56 31.2 81.2 -4.5 -63.2 600 1591 07 42 00 07 52 20 J1532+2344 11 07 18 31.8 81.3 -4.4 -63.4 14 1591 07 52 20 07 55 20 =1530+239 11 10 18 32.4 81.7 -4.4 -63.5 180 1637 07 52 21 07 55 41 ARP220 11 10 39 31.9 81.7 -4.4 -63.3 13 1637 07 55 41 08 05 41 --- 11 20 41 34.0 82.9 -4.3 -63.6 600 1792 07 55 42 08 05 56 3C318 11 20 55 35.6 88.4 -4.0 -61.9 0 1792 08 05 56 08 06 56 --- 11 21 55 35.8 88.5 -4.0 -61.9 60 1807 08 05 57 08 07 12 J1532+2344 11 22 12 34.8 83.1 -4.2 -63.9 2 1807 08 07 12 08 09 12 =1530+239 11 24 13 35.3 83.4 -4.2 -63.9 120 1838 08 07 13 08 09 33 ARP220 11 24 33 34.8 83.4 -4.2 -63.7 13 1838 08 09 33 08 19 33 --- 11 34 35 36.8 84.6 -4.0 -64.0 600 1993 08 09 34 08 19 54 J1532+2344 11 34 56 37.5 84.7 -4.0 -64.2 13 1993 08 19 54 08 22 54 =1530+239 11 37 56 38.1 85.1 -3.9 -64.3 180 2039 08 19 55 08 23 14 ARP220 11 38 17 37.6 85.1 -4.0 -64.1 13 2039 08 23 14 08 33 14 --- 11 48 18 39.7 86.4 -3.8 -64.3 600 2194 08 23 15 Schedule for VLA27 (Code Y ) 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 --- 08 33 29 3C318 11 48 34 41.3 92.3 -3.5 -61.9 0 2194 08 33 29 08 34 29 --- 11 49 34 41.5 92.4 -3.5 -61.9 60 2209 08 33 30 08 35 20 J1516+1932 11 50 24 42.0 93.9 -3.5 -61.2 42 2209 08 35 20 08 36 20 =1514+197 11 51 24 42.2 94.0 -3.4 -61.2 60 2224 08 35 21 08 37 12 J1532+2344 11 52 17 41.1 86.9 -3.7 -64.6 36 2224 08 37 12 08 40 12 =1530+239 11 55 18 41.7 87.3 -3.6 -64.6 180 2271 08 37 13 08 40 33 ARP220 11 55 38 41.2 87.3 -3.7 -64.4 12 2271 08 40 33 08 50 33 --- 12 05 39 43.3 88.7 -3.5 -64.5 600 2425 08 40 34 08 50 53 J1532+2344 12 06 00 43.9 88.7 -3.5 -64.7 13 2425 08 50 53 08 53 53 =1530+239 12 09 01 44.5 89.2 -3.4 -64.7 180 2472 08 50 54 08 54 13 ARP220 12 09 21 44.0 89.2 -3.4 -64.5 12 2472 08 54 13 09 04 13 --- 12 19 22 46.1 90.6 -3.3 -64.5 600 2626 08 54 14 09 04 29 3C318 12 19 38 47.8 97.2 -3.0 -61.1 0 2626 09 04 29 09 05 29 --- 12 20 39 48.0 97.3 -3.0 -61.1 60 2642 09 04 30 09 05 45 J1532+2344 12 20 55 47.0 90.8 -3.2 -64.7 0 2642 09 05 45 09 07 45 =1530+239 12 22 55 47.4 91.1 -3.2 -64.7 120 2673 09 05 46 09 08 05 ARP220 12 23 15 46.9 91.1 -3.2 -64.5 12 2673 09 08 05 09 18 05 --- 12 33 17 49.0 92.6 -3.0 -64.4 600 2827 09 08 06 09 18 25 J1532+2344 12 33 37 49.6 92.7 -3.0 -64.6 13 2827 09 18 25 09 21 25 =1530+239 12 36 37 50.2 93.2 -2.9 -64.6 180 2874 09 18 26 09 21 45 ARP220 12 36 57 49.7 93.2 -3.0 -64.3 12 2874 09 21 45 09 31 45 --- 12 46 59 51.8 94.8 -2.8 -64.1 600 3028 09 21 46 09 32 02 3C318 12 47 16 53.4 102.2 -2.6 -59.6 0 3028 09 32 02 09 33 02 --- 12 48 16 53.6 102.4 -2.5 -59.5 60 3044 09 32 03 09 33 51 J1516+1932 12 49 05 54.0 104.3 -2.5 -58.4 39 3044 09 33 51 09 34 51 =1514+197 12 50 05 54.2 104.5 -2.5 -58.3 60 3059 09 33 52 09 35 43 J1532+2344 12 50 58 53.2 95.4 -2.7 -64.2 33 3059 09 35 43 09 36 43 =1530+239 12 51 58 53.4 95.6 -2.7 -64.2 60 3075 09 35 44 09 37 03 ARP220 12 52 18 52.9 95.6 -2.7 -64.0 12 3075 09 37 03 09 47 03 --- 13 02 19 55.0 97.4 -2.6 -63.6 600 3229 09 37 04 Schedule for VLA27 (Code Y ) 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 --- 09 47 23 J1532+2344 13 02 39 55.6 97.5 -2.5 -63.7 12 3229 09 47 23 09 50 23 =1530+239 13 05 40 56.2 98.0 -2.5 -63.6 180 3276 09 47 24 09 50 43 ARP220 13 05 59 55.7 98.0 -2.5 -63.4 12 3276 09 50 43 10 00 43 --- 13 16 01 57.8 99.9 -2.3 -62.8 600 3430 09 50 44 10 01 02 3C318 13 16 21 59.2 108.7 -2.1 -56.7 0 3430 10 01 02 10 02 02 --- 13 17 21 59.4 108.9 -2.1 -56.6 60 3446 10 01 03 10 02 21 J1532+2344 13 17 40 58.7 100.3 -2.3 -62.8 0 3446 10 02 21 10 04 21 =1530+239 13 19 40 59.1 100.7 -2.2 -62.7 120 3477 10 02 22 10 04 41 ARP220 13 20 00 58.6 100.7 -2.3 -62.5 12 3477 10 04 41 10 14 41 --- 13 30 01 60.6 102.9 -2.1 -61.7 600 3631 10 04 42 10 15 01 J1532+2344 13 30 21 61.2 103.0 -2.1 -61.8 12 3631 10 15 01 10 18 01 =1530+239 13 33 22 61.8 103.7 -2.0 -61.5 180 3678 10 15 02 10 18 20 ARP220 13 33 41 61.4 103.7 -2.0 -61.3 12 3678 10 18 20 10 28 20 --- 13 43 43 63.4 106.1 -1.9 -60.2 600 3832 10 18 21 10 28 42 3C318 13 44 05 64.5 116.7 -1.6 -52.0 0 3832 10 28 42 10 29 42 --- 13 45 05 64.7 117.1 -1.6 -51.8 60 3848 10 28 43 10 30 22 J1516+1932 13 45 45 64.9 119.7 -1.5 -49.7 30 3848 10 30 16 10 31 22 =1514+197 13 46 45 65.1 120.1 -1.5 -49.5 60 3865 10 30 17 10 32 14 J1532+2344 13 47 38 64.7 107.3 -1.8 -59.7 27 3865 10 32 14 10 35 14 =1530+239 13 50 38 65.3 108.1 -1.7 -59.3 180 3911 10 32 15 10 35 33 ARP220 13 50 58 64.8 108.0 -1.7 -59.1 11 3911 10 35 33 10 45 33 --- 14 00 59 66.8 111.0 -1.6 -57.5 600 4066 10 35 34 10 45 53 J1532+2344 14 01 19 67.4 111.3 -1.5 -57.4 12 4066 10 45 53 10 48 53 =1530+239 14 04 20 67.9 112.3 -1.5 -56.8 180 4112 10 45 54 10 49 12 ARP220 14 04 39 67.5 112.2 -1.5 -56.7 11 4112 10 49 12 10 59 12 --- 14 14 41 69.4 115.7 -1.4 -54.4 600 4266 10 49 13 10 59 39 3C318 14 15 08 69.9 129.4 -1.1 -43.0 0 4266 10 59 39 11 00 39 --- 14 16 08 70.1 129.9 -1.1 -42.6 60 4282 10 59 40 11 01 06 J1532+2344 14 16 34 70.3 116.7 -1.3 -53.9 0 4282 11 01 06 11 02 06 =1530+239 14 17 34 70.4 117.1 -1.3 -53.6 60 4297 11 01 07 Schedule for VLA27 (Code Y ) 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 --- 11 02 15 J1532+2344 14 17 43 70.5 117.2 -1.3 -53.6 3 4297 11 02 12 11 04 15 =1530+239 14 19 43 70.8 118.0 -1.2 -53.0 120 4329 11 02 07 11 04 30 ARP220 14 19 59 70.3 117.8 -1.3 -53.0 7 4329 11 04 30 11 14 30 --- 14 30 00 72.1 122.2 -1.1 -49.8 600 4484 11 04 31 11 14 45 J1532+2344 14 30 16 72.7 122.9 -1.1 -49.4 8 4484 11 14 45 11 17 45 =1530+239 14 33 16 73.2 124.4 -1.0 -48.3 180 4530 11 14 46 11 18 00 ARP220 14 33 31 72.8 124.0 -1.0 -48.5 7 4530 11 18 00 11 28 00 --- 14 43 33 74.4 129.6 -0.9 -44.1 600 4685 11 18 01 11 28 33 3C318 14 44 06 73.9 147.2 -0.6 -28.5 0 4685 11 28 33 11 29 33 --- 14 45 06 74.0 148.0 -0.6 -27.9 60 4700 11 28 34 11 30 50 J1516+1932 14 46 23 73.8 152.5 -0.5 -23.9 66 4700 11 30 44 11 31 50 =1514+197 14 47 24 73.9 153.3 -0.5 -23.2 60 4717 11 30 45 11 32 43 J1532+2344 14 48 16 75.7 133.5 -0.8 -41.0 16 4717 11 32 43 11 35 43 =1530+239 14 51 17 76.1 135.7 -0.7 -39.2 180 4763 11 32 44 11 35 58 ARP220 14 51 32 75.6 134.9 -0.7 -39.8 7 4763 11 35 58 11 45 58 --- 15 01 34 77.0 142.7 -0.6 -33.1 600 4918 11 35 59 11 46 13 J1532+2344 15 01 49 77.5 144.3 -0.5 -31.9 7 4918 11 46 13 11 49 13 =1530+239 15 04 50 77.9 147.1 -0.5 -29.4 180 4964 11 46 14 11 49 28 ARP220 15 05 05 77.4 145.8 -0.5 -30.5 7 4964 11 49 28 11 59 28 --- 15 15 06 78.5 155.7 -0.3 -21.8 600 5119 11 49 29 12 00 03 3C318 15 15 41 76.1 175.0 -0.1 -4.5 0 5119 12 00 03 12 01 03 --- 15 16 42 76.1 175.9 -0.1 -3.6 60 5134 12 00 04 12 01 34 J1532+2344 15 17 12 79.0 160.0 -0.3 -18.0 0 5134 12 01 34 12 03 34 =1530+239 15 19 12 79.1 162.3 -0.2 -15.9 120 5165 12 01 35 12 03 49 ARP220 15 19 27 78.8 160.5 -0.3 -17.6 6 5165 12 03 49 12 13 49 --- 15 29 29 79.3 172.3 -0.1 -6.9 600 5320 12 03 50 12 14 04 J1532+2344 15 29 44 79.6 175.2 -0.1 -4.3 5 5320 12 14 04 12 17 04 =1530+239 15 32 45 79.6 179.0 -0.0 -0.9 180 5366 12 14 05 12 17 19 ARP220 15 33 00 79.3 176.7 -0.0 -3.0 5 5366 12 17 19 12 27 19 --- 15 43 02 79.2 189.0 0.1 8.2 600 5521 12 17 20 Schedule for VLA27 (Code Y ) 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 --- 12 27 43 3C318 15 43 26 75.3 201.3 0.4 18.7 0 5521 12 27 43 12 28 43 --- 15 44 26 75.2 202.1 0.4 19.4 60 5536 12 27 44 12 28 52 J1516+1932 15 44 35 74.2 203.9 0.4 20.9 0 5536 12 28 52 12 29 52 =1514+197 15 45 35 74.1 204.7 0.5 21.6 60 5552 12 28 45 12 30 14 J1532+2344 15 45 57 79.2 195.4 0.2 13.9 0 5552 12 30 14 12 33 14 =1530+239 15 48 58 79.1 199.0 0.3 17.1 180 5598 12 30 15 12 33 24 ARP220 15 49 08 79.0 196.3 0.2 14.7 0 5598 12 33 24 12 43 24 --- 15 59 10 78.2 207.3 0.4 24.4 600 5753 12 33 25 12 43 35 J1532+2344 15 59 20 78.2 210.1 0.4 27.0 0 5753 12 43 35 12 46 35 =1530+239 16 02 21 77.8 213.1 0.5 29.6 180 5799 12 43 36 12 46 45 ARP220 16 02 31 77.9 210.6 0.4 27.4 0 5799 12 46 45 12 56 45 --- 16 12 33 76.7 219.5 0.6 35.1 600 5954 12 46 46 12 57 06 3C318 16 12 53 72.0 223.0 0.9 37.0 0 5954 12 57 06 12 58 06 --- 16 13 53 71.8 223.6 0.9 37.5 60 5969 12 57 07 12 58 25 J1532+2344 16 14 13 76.3 223.2 0.7 38.2 0 5969 12 58 25 13 00 25 =1530+239 16 16 13 76.0 224.7 0.7 39.5 120 6000 12 58 26 13 00 35 ARP220 16 16 23 76.1 222.6 0.7 37.6 0 6000 13 00 35 13 10 35 --- 16 26 25 74.6 229.5 0.8 43.4 600 6155 13 00 36 13 10 45 J1532+2344 16 26 35 74.4 231.6 0.9 45.1 1 6155 13 10 45 13 13 45 =1530+239 16 29 35 73.9 233.3 0.9 46.5 180 6201 13 10 36 13 13 55 ARP220 16 29 45 74.1 231.5 0.9 45.0 1 6201 13 13 54 13 23 55 --- 16 39 47 72.4 237.0 1.1 49.2 600 6356 13 13 46 13 24 15 3C318 16 40 07 67.6 236.7 1.3 47.6 0 6356 13 24 15 13 25 15 --- 16 41 07 67.5 237.2 1.3 47.9 60 6372 13 24 16 13 25 24 J1516+1932 16 41 17 66.4 237.1 1.4 47.5 0 6372 13 25 24 13 26 24 =1514+197 16 42 17 66.2 237.5 1.4 47.8 60 6387 13 25 17 13 26 47 J1532+2344 16 42 39 71.7 240.0 1.2 51.5 0 6387 13 26 47 13 29 47 =1530+239 16 45 40 71.1 241.3 1.2 52.5 180 6433 13 26 48 13 29 56 ARP220 16 45 49 71.4 239.8 1.2 51.3 1 6433 13 29 56 13 39 56 --- 16 55 51 69.5 244.0 1.3 54.2 600 6588 13 29 48 Schedule for VLA27 (Code Y ) 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 --- 13 40 06 J1532+2344 16 56 00 69.2 245.4 1.4 55.3 1 6588 13 40 05 13 43 06 =1530+239 16 59 01 68.7 246.5 1.4 56.0 180 6635 13 39 57 13 43 15 ARP220 16 59 10 68.9 245.2 1.4 55.1 1 6635 13 43 14 13 53 15 --- 17 09 12 67.0 248.6 1.6 57.2 600 6790 13 43 07 13 53 35 3C318 17 09 32 62.3 247.0 1.8 54.3 0 6790 13 53 35 13 54 35 --- 17 10 32 62.1 247.3 1.8 54.5 60 6805 13 53 36 13 54 54 J1532+2344 17 10 51 66.4 250.3 1.6 58.4 0 6805 13 54 54 13 56 54 =1530+239 17 12 52 66.0 250.9 1.7 58.7 120 6836 13 54 55 13 57 03 ARP220 17 13 01 66.3 249.8 1.6 57.9 1 6836 13 57 02 14 07 03 --- 17 23 02 64.3 252.7 1.8 59.5 600 6991 13 56 55 14 07 12 J1532+2344 17 23 11 63.9 253.7 1.8 60.3 1 6991 14 07 11 14 10 12 =1530+239 17 26 12 63.3 254.5 1.9 60.6 180 7038 14 07 04 14 10 21 ARP220 17 26 20 63.6 253.5 1.8 60.0 1 7038 14 10 20 14 20 21 --- 17 36 22 61.6 256.0 2.0 61.2 600 7192 14 10 13 14 20 41 3C318 17 36 42 57.0 254.0 2.3 58.0 0 7192 14 20 41 14 21 41 --- 17 37 42 56.8 254.3 2.3 58.2 60 7208 14 20 42 14 22 00 J1532+2344 17 38 01 61.0 257.3 2.1 61.9 0 7208 14 22 00 14 24 00 =1530+239 17 40 02 60.6 257.7 2.1 62.1 120 7239 14 22 01 14 24 09 ARP220 17 40 10 60.9 256.9 2.1 61.5 1 7239 14 24 08 14 34 09 --- 17 50 12 58.8 259.0 2.2 62.4 600 7394 14 24 01 14 34 17 J1532+2344 17 50 21 58.5 259.9 2.3 62.9 1 7394 14 34 16 14 37 17 =1530+239 17 53 21 57.9 260.5 2.3 63.1 180 7440 14 34 10 14 37 26 ARP220 17 53 30 58.2 259.7 2.3 62.7 1 7440 14 37 25 14 47 26 --- 18 03 32 56.1 261.6 2.5 63.3 600 7595 14 37 18 14 47 46 3C318 18 03 52 51.5 259.6 2.7 60.2 0 7595 14 47 46 14 48 46 --- 18 04 52 51.3 259.8 2.7 60.3 60 7611 14 47 47 14 48 57 J1516+1932 18 05 03 50.2 259.4 2.8 59.7 1 7611 14 48 56 14 49 57 =1514+197 18 06 03 50.0 259.6 2.8 59.8 60 7626 14 48 52 14 50 24 J1532+2344 18 06 30 55.2 262.9 2.5 63.8 5 7626 14 50 24 14 53 24 =1530+239 18 09 30 54.5 263.4 2.6 64.0 180 7673 14 50 25 Schedule for VLA27 (Code Y ) Page 9 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 53 33 ARP220 18 09 40 54.9 262.7 2.6 63.6 2 7673 14 53 31 15 03 33 --- 18 19 42 52.8 264.5 2.7 64.0 600 7828 14 53 25 15 03 44 J1532+2344 18 19 52 52.4 265.2 2.8 64.3 3 7828 15 03 44 15 06 44 =1530+239 18 22 53 51.8 265.7 2.8 64.4 180 7874 15 03 45 15 06 55 ARP220 18 23 03 52.1 265.0 2.8 64.1 3 7874 15 06 55 15 16 55 --- 18 33 05 50.0 266.6 3.0 64.3 600 8029 15 06 56 15 17 07 J1532+2344 18 33 18 49.6 267.3 3.0 64.6 5 8029 15 17 07 15 20 07 =1530+239 18 36 18 49.0 267.7 3.0 64.6 180 8075 15 17 08 15 20 20 ARP220 18 36 31 49.3 267.1 3.0 64.4 5 8075 15 20 20 15 30 10 --- 18 46 22 47.3 268.6 3.2 64.5 590 8227 15 20 21 ---------- START of preemt=EXTRA scans (VLBA only) ---------- 15 30 30 3C318 18 46 42 42.7 266.8 3.4 61.8 0 8227 15 30 30 15 31 30 --- 18 47 43 42.5 266.9 3.4 61.8 60 8243 15 30 31 15 31 48 J1532+2344 18 48 01 46.6 269.5 3.2 64.7 0 8243 15 31 48 15 33 48 =1530+239 18 50 01 46.2 269.7 3.3 64.7 120 8274 15 31 49 15 34 00 ARP220 18 50 14 46.5 269.2 3.2 64.5 5 8274 15 34 00 15 44 00 --- 19 00 15 44.4 270.6 3.4 64.5 600 8428 15 34 01 15 44 10 J1532+2344 19 00 25 44.0 271.2 3.4 64.7 2 8428 15 44 08 15 47 10 =1530+239 19 03 25 43.4 271.6 3.5 64.7 180 8475 15 44 01 15 47 19 ARP220 19 03 34 43.7 271.0 3.5 64.5 2 8475 15 47 17 15 57 19 --- 19 13 36 41.6 272.4 3.6 64.4 600 8630 15 47 11 15 57 39 3C318 19 13 56 37.0 270.7 3.9 61.9 0 8630 15 57 39 15 58 39 --- 19 14 56 36.8 270.8 3.9 61.9 60 8646 15 57 40 15 58 57 J1532+2344 19 15 15 40.9 273.1 3.7 64.6 0 8646 15 58 57 16 00 57 =1530+239 19 17 15 40.5 273.4 3.7 64.5 120 8676 15 58 58 16 01 06 ARP220 19 17 24 40.9 272.9 3.7 64.4 2 8676 16 01 05 16 11 06 --- 19 27 26 38.8 274.2 3.9 64.2 600 8832 16 00 58 16 11 15 J1532+2344 19 27 35 38.4 274.7 3.9 64.3 2 8832 16 11 14 16 14 15 =1530+239 19 30 35 37.8 275.1 4.0 64.3 180 8878 16 11 07 Schedule for VLA27 (Code Y ) Page 10 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 --- 16 14 24 ARP220 19 30 44 38.1 274.6 3.9 64.1 2 8878 16 14 23 16 24 24 --- 19 40 46 36.0 275.8 4.1 63.9 600 9034 16 14 16 16 24 44 3C318 19 41 06 31.4 274.3 4.3 61.7 0 9034 16 24 44 16 25 44 --- 19 42 06 31.2 274.5 4.4 61.6 60 9049 16 24 45 16 25 53 J1516+1932 19 42 15 30.2 274.1 4.4 61.2 0 9049 16 25 53 16 26 53 =1514+197 19 43 15 30.0 274.3 4.4 61.2 60 9064 16 25 45 16 27 15 J1532+2344 19 43 37 35.1 276.7 4.2 63.9 0 9064 16 27 15 16 30 15 =1530+239 19 46 37 34.5 277.1 4.2 63.8 180 9111 16 27 16 16 30 24 ARP220 19 46 46 34.8 276.6 4.2 63.7 2 9111 16 30 22 16 40 24 --- 19 56 48 32.7 277.8 4.4 63.4 600 9266 16 30 16 16 40 33 J1532+2344 19 56 57 32.4 278.4 4.4 63.5 2 9266 16 40 31 16 43 33 =1530+239 19 59 57 31.7 278.7 4.4 63.4 180 9313 16 40 25 16 43 42 ARP220 20 00 06 32.1 278.2 4.4 63.3 2 9313 16 43 40 16 53 42 --- 20 10 08 30.0 279.4 4.6 62.9 600 9468 16 43 34 16 54 02 3C318 20 10 28 25.4 278.1 4.8 60.9 0 9468 16 54 02 16 55 02 --- 20 11 28 25.2 278.2 4.8 60.9 60 9483 16 54 03 16 55 20 J1532+2344 20 11 47 29.3 280.1 4.6 62.9 0 9483 16 55 20 16 57 20 =1530+239 20 13 47 28.9 280.4 4.7 62.8 120 9514 16 55 21 16 57 29 ARP220 20 13 56 29.2 279.9 4.6 62.8 2 9514 16 57 28 17 07 29 --- 20 23 58 27.2 281.1 4.8 62.4 600 9669 16 57 21 17 07 38 J1532+2344 20 24 07 26.8 281.6 4.8 62.4 2 9669 17 07 36 17 10 38 =1530+239 20 27 07 26.2 282.0 4.9 62.2 180 9716 17 07 30 17 10 57 3C318 20 27 26 21.9 280.2 5.1 60.3 0 9716 17 10 57 17 11 57 --- 20 28 26 21.7 280.3 5.1 60.3 60 9732 17 10 58 17 12 06 J1516+1932 20 28 36 20.7 280.1 5.2 59.9 0 9732 17 12 06 17 13 06 =1514+197 20 29 36 20.5 280.2 5.2 59.8 60 9747 17 11 59 17 13 28 J1532+2344 20 29 58 25.6 282.3 4.9 62.1 0 9747 17 13 28 17 16 28 =1530+239 20 32 58 25.0 282.7 5.0 61.9 180 9794 17 13 29 17 16 37 ARP220 20 33 07 25.3 282.2 5.0 61.9 2 9794 17 16 35 17 23 07 --- 20 39 38 24.0 283.0 5.1 61.6 390 9895 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 --- 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: 11 Station: VLA27 Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 8 DBE type: WIDAR Speedup factor: 1.00 Disk used to record data. 1st LO= 1039.00 1039.00 1039.00 1039.00 1039.00 1039.00 1039.00 1039.00 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 B D A C B D The following frequency sets based on these setups were used. Frequency Set: 18 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= 465.25 465.25 529.25 529.25 593.25 593.25 657.25 657.25 Bandwd= 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.00 Matching frequency sets: 18 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