COVER INFORMATION Station: ARECIBO (Code Ar ) Experiment: Revealing the radio structure in AT2018cow Exp. Code: RY007B Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Jun Yang, contact person Address: Onsala Space Observatory SE-439 92 Onsala Sweden Phone: +46 31 7725531 EMAIL: jun.yang@chalmers.se Fax: +46 31 7725590 Phone during observation: +46 31 7725531 Observing mode: 1024-16-2 Notes: PI: Prashanth Mohan, Shanghai Astronomical Observatory 1024 Mbps, 16x16 MHz, RCP & LCP, 2 bit sampling Full EVN observations at C band/5 GHz DBBC2 stations: Non-E version firmware Schedule for ARECIBO (Code Ar ) Page 2 Revealing the radio structure in AT2018cow 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 20 Oct 2018 Day 293 --- Next scan frequencies: 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 Next BBC frequencies: 807.51 807.51 807.51 807.51 775.51 775.51 775.51 775.51 743.51 743.51 743.51 743.51 711.51 711.51 711.51 711.51 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 17 23 00 VLA1 14 52 29 69.9 75.3 -1.4 D -97.4 0 0 17 23 00 17 25 00 --- 14 54 29 70.4 75.1 -1.4 -97.7 0 15 17 23 01 17 26 00 AT2018 14 55 29 70.6 75.0 -1.4 -97.8 50 15 17 26 00 17 29 00 --- 14 58 30 71.3 74.7 -1.3 -98.4 180 38 17 26 01 17 29 00 J1619+2247 14 58 30 70.4 73.5 -1.4 -99.3 -26 38 No stop 17 30 00 --- 14 59 30 70.7 73.4 -1.3 -99.5 34 46 17 29 01 17 30 00 AT2018 14 59 30 71.5 74.6 -1.3 -98.6 -30 46 No stop 17 32 00 --- 15 01 30 71.9 74.4 -1.3 -99.0 90 61 17 30 01 17 32 00 VLA2 15 01 30 71.8 74.3 -1.3 -99.0 -12 61 No stop 17 33 00 --- 15 02 30 72.0 74.2 -1.2 -99.2 48 69 17 32 01 17 33 30 J1619+2247 15 03 00 71.5 73.0 -1.3 -100.2 7 69 17 33 30 17 34 30 --- 15 04 01 71.7 72.8 -1.3 -100.4 60 77 17 33 31 17 34 30 AT2018 15 04 01 72.5 74.1 -1.2 -99.5 -31 77 No stop 17 37 30 --- 15 07 01 73.2 73.7 -1.2 -100.2 149 100 17 34 31 17 37 30 J1619+2247 15 07 01 72.4 72.4 -1.2 -101.1 -27 100 No stop 17 38 30 --- 15 08 01 72.6 72.3 -1.2 -101.4 33 108 17 37 31 17 38 30 AT2018 15 08 01 73.4 73.6 -1.1 -100.4 -31 108 No stop 17 41 30 --- 15 11 02 74.1 73.1 -1.1 -101.2 149 131 17 38 31 17 41 30 J1619+2247 15 11 02 73.3 71.8 -1.1 -102.1 -27 131 No stop 17 42 30 --- 15 12 02 73.5 71.6 -1.1 -102.4 33 138 17 41 31 17 43 00 VLA1 15 12 32 74.5 72.8 -1.1 -101.7 -3 138 17 43 00 17 45 00 --- 15 14 32 75.0 72.4 -1.0 -102.2 117 154 17 43 01 17 45 00 J1619+2247 15 14 32 74.1 71.2 -1.1 -103.1 -28 154 No stop 17 46 00 --- 15 15 32 74.3 71.0 -1.1 -103.3 32 161 17 45 01 17 46 00 AT2018 15 15 32 75.1 72.3 -1.0 -102.4 -31 161 No stop 17 49 00 --- 15 18 33 75.8 71.7 -1.0 -103.3 149 184 17 46 01 Schedule for ARECIBO (Code Ar ) Page 3 Revealing the radio structure in AT2018cow 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 20 Oct 2018 Day 293 --- 17 49 00 J1619+2247 15 18 33 75.0 70.3 -1.0 -104.2 -27 184 No stop 17 50 00 --- 15 19 33 75.2 70.1 -1.0 -104.5 33 192 17 49 01 17 50 00 AT2018 15 19 33 76.0 71.5 -1.0 -103.6 -31 192 No stop 17 52 00 --- 15 21 33 76.5 71.0 -0.9 -104.2 89 207 17 50 01 17 52 00 VLA2 15 21 33 76.3 70.9 -0.9 -104.2 -12 207 No stop 17 53 00 --- 15 22 34 76.5 70.7 -0.9 -104.5 48 215 17 52 01 17 53 30 J1619+2247 15 23 04 76.0 69.3 -0.9 -105.7 6 215 17 53 30 17 54 30 --- 15 24 04 76.2 69.0 -0.9 -106.1 60 223 17 53 31 17 54 30 AT2018 15 24 04 77.0 70.3 -0.9 -105.1 -31 223 No stop 17 57 30 --- 15 27 04 77.7 69.5 -0.8 -106.2 149 246 17 54 31 17 57 30 J1619+2247 15 27 04 76.9 68.2 -0.9 -107.2 -28 246 No stop 17 58 30 --- 15 28 05 77.1 67.8 -0.9 -107.6 32 253 17 57 31 17 58 30 AT2018 15 28 05 77.9 69.2 -0.8 -106.6 -32 253 No stop 18 01 30 --- 15 31 05 78.6 68.2 -0.8 -107.9 148 276 17 58 31 18 01 30 J1619+2247 15 31 05 77.7 66.9 -0.8 -108.8 -28 276 No stop 18 02 30 --- 15 32 05 77.9 66.5 -0.8 -109.3 32 284 18 01 31 18 03 00 VLA1 15 32 35 79.0 67.4 -0.7 -108.7 -4 284 18 03 00 18 05 00 --- 15 34 36 79.4 66.6 -0.7 -109.7 116 300 18 03 01 18 05 00 J1619+2247 15 34 36 78.5 65.5 -0.8 -110.5 -29 300 No stop 18 06 00 --- 15 35 36 78.7 65.1 -0.7 -111.0 31 307 18 05 01 18 06 00 AT2018 15 35 36 79.6 66.4 -0.7 -110.1 -32 307 No stop 18 09 00 --- 15 38 36 80.2 64.9 -0.6 -111.7 148 330 18 06 01 18 09 00 J1619+2247 15 38 36 79.4 63.8 -0.7 -112.6 -28 330 No stop 18 10 00 --- 15 39 36 79.6 63.3 -0.7 -113.2 32 338 18 09 01 18 10 00 AT2018 15 39 36 80.5 64.4 -0.6 -112.3 -32 338 No stop 18 12 00 --- 15 41 37 80.9 63.3 -0.6 -113.6 88 353 18 10 01 18 12 00 VLA2 15 41 37 80.7 63.4 -0.6 -113.5 -12 353 No stop 18 13 00 --- 15 42 37 80.9 62.8 -0.6 -114.1 48 361 18 12 01 18 13 30 J1619+2247 15 43 07 80.3 61.4 -0.6 -115.4 5 361 18 13 30 18 14 30 --- 15 44 07 80.5 60.8 -0.6 -116.1 60 369 18 13 31 Schedule for ARECIBO (Code Ar ) Page 4 Revealing the radio structure in AT2018cow 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 20 Oct 2018 Day 293 --- 18 14 30 AT2018 15 44 07 81.4 61.7 -0.5 -115.4 -32 369 No stop 18 17 30 --- 15 47 08 82.0 59.6 -0.5 -117.9 148 392 18 14 31 18 17 30 J1619+2247 15 47 08 81.1 58.8 -0.5 -118.3 -29 392 No stop 18 18 30 --- 15 48 08 81.3 58.1 -0.5 -119.1 31 399 18 17 31 18 18 30 AT2018 15 48 08 82.2 58.8 -0.5 -118.7 -32 399 No stop 18 21 30 --- 15 51 08 82.8 56.1 -0.4 -121.7 148 422 18 18 31 18 21 30 J1619+2247 15 51 08 81.9 55.6 -0.5 -121.8 -29 422 No stop 18 22 30 --- 15 52 08 82.1 54.7 -0.5 -122.8 31 430 18 21 31 18 23 00 VLA1 15 52 39 83.2 54.2 -0.4 -123.8 -4 430 18 23 00 18 25 00 --- 15 54 39 83.6 51.8 -0.4 -126.3 116 445 18 23 01 18 25 00 J1619+2247 15 54 39 82.6 52.3 -0.4 -125.5 -30 445 No stop 18 26 00 --- 15 55 39 82.8 51.2 -0.4 -126.6 30 453 18 25 01 18 26 00 AT2018 15 55 39 83.7 51.0 -0.4 -127.1 -32 453 No stop 18 29 00 --- 15 58 40 84.2 46.8 -0.3 -131.6 148 476 18 26 01 18 29 00 J1619+2247 15 58 40 83.3 47.7 -0.4 -130.5 -29 476 No stop 18 30 00 --- 15 59 40 83.5 46.3 -0.3 -131.9 31 484 18 29 01 18 30 00 AT2018 15 59 40 84.4 45.2 -0.3 -133.3 -32 484 No stop 18 32 00 --- 16 01 40 84.7 41.7 -0.3 -136.9 88 499 18 30 01 18 32 00 VLA2 16 01 40 84.6 42.6 -0.3 -136.0 -12 499 No stop 18 33 00 --- 16 02 40 84.8 40.8 -0.2 -137.9 48 507 18 32 01 18 33 30 J1619+2247 16 03 10 84.1 41.1 -0.3 -137.5 4 507 18 33 30 18 34 30 --- 16 04 10 84.2 39.4 -0.3 -139.2 60 515 18 33 31 18 34 30 AT2018 16 04 10 85.1 36.7 -0.2 -142.2 -31 515 No stop 18 37 30 --- 16 07 11 85.5 29.7 -0.2 -149.5 149 538 18 34 31 18 37 30 J1619+2247 16 07 11 84.7 33.7 -0.2 -145.2 -28 538 No stop 18 38 30 --- 16 08 11 84.8 31.6 -0.2 -147.4 32 545 18 37 31 18 38 30 AT2018 16 08 11 85.6 27.1 -0.1 -152.2 -30 545 No stop 18 41 30 --- 16 11 12 85.9 18.4 -0.1 -161.1 150 568 18 38 31 18 41 30 J1619+2247 16 11 12 85.1 24.7 -0.1 -154.5 -26 568 No stop 18 42 30 --- 16 12 12 85.2 22.2 -0.1 -157.1 34 576 18 41 31 Schedule for ARECIBO (Code Ar ) Page 5 Revealing the radio structure in AT2018cow 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 20 Oct 2018 Day 293 --- 18 43 00 VLA1 16 12 42 86.0 12.7 -0.1 -167.0 -4 576 18 43 00 18 45 00 --- 16 14 42 86.1 6.0 -0.0 -173.8 116 591 18 43 01 18 45 00 J1619+2247 16 14 42 85.4 15.5 -0.1 -164.0 -31 591 No stop 18 46 00 --- 16 15 42 85.5 12.7 -0.1 -166.9 29 599 18 45 01 18 46 00 AT2018 16 15 42 86.1 363.7 -0.0 W -176.2 -754 599 No stop 18 49 00 --- 16 18 43 86.1 353.4 0.0 W 173.3 0 622 18 46 01 18 49 00 J1619+2247 16 18 43 85.6 363.9 -0.0 -176.0 -33 622 No stop 18 50 00 --- 16 19 43 85.6 360.9 -0.0 -179.1 27 630 18 49 01 18 50 00 AT2018 16 19 43 86.1 350.1 0.0 169.8 -41 630 No stop 18 52 00 --- 16 21 43 85.9 343.6 0.1 163.2 79 645 18 50 01 18 52 00 VLA2 16 21 43 85.9 345.9 0.1 165.5 -15 645 No stop 18 53 00 --- 16 22 43 85.9 342.8 0.1 162.3 45 653 18 52 01 18 53 30 J1619+2247 16 23 14 85.5 350.5 0.1 170.2 -1 653 18 53 30 18 54 30 --- 16 24 14 85.5 347.6 0.1 167.2 59 660 18 53 31 18 54 30 AT2018 16 24 14 85.7 336.1 0.1 155.5 -42 660 No stop 18 57 30 --- 16 27 14 85.4 328.2 0.2 147.3 138 684 18 54 31 18 57 30 J1619+2247 16 27 14 85.3 339.4 0.1 158.7 -35 684 No stop 18 58 30 --- 16 28 14 85.2 336.8 0.1 156.1 25 691 18 57 31 18 58 30 AT2018 16 28 14 85.3 325.8 0.2 144.8 -40 691 No stop 19 01 30 --- 16 31 15 84.8 319.5 0.2 138.2 140 714 18 58 31 19 01 30 J1619+2247 16 31 15 84.9 329.7 0.2 148.7 -33 714 No stop 19 02 30 --- 16 32 15 84.7 327.5 0.2 146.5 27 722 19 01 31 19 03 00 VLA1 16 32 45 84.6 316.2 0.3 134.8 -8 722 19 03 00 19 05 00 --- 16 34 45 84.2 313.0 0.3 131.4 112 737 19 03 01 19 05 00 J1619+2247 16 34 45 84.4 322.6 0.2 141.3 -32 737 No stop 19 06 00 --- 16 35 46 84.3 320.8 0.3 139.4 28 745 19 05 01 19 06 00 AT2018 16 35 46 84.1 311.9 0.3 130.3 -34 745 No stop 19 09 00 --- 16 38 46 83.5 307.9 0.4 126.0 146 768 19 06 01 19 09 00 J1619+2247 16 38 46 83.8 316.0 0.3 134.3 -29 768 No stop 19 10 00 --- 16 39 46 83.6 314.5 0.3 132.8 31 776 19 09 01 Schedule for ARECIBO (Code Ar ) Page 6 Revealing the radio structure in AT2018cow 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 20 Oct 2018 Day 293 --- 19 10 00 AT2018 16 39 46 83.4 306.7 0.4 124.7 -31 776 No stop 19 12 00 --- 16 41 47 83.0 304.6 0.4 122.4 89 791 19 10 01 19 12 00 VLA2 16 41 47 83.1 305.6 0.4 123.5 -13 791 No stop 19 13 00 --- 16 42 47 82.9 304.6 0.4 122.4 47 799 19 12 01 19 13 30 J1619+2247 16 43 17 83.0 310.0 0.4 128.0 5 799 19 13 30 19 14 30 --- 16 44 17 82.8 308.9 0.4 126.7 60 806 19 13 31 19 14 30 AT2018 16 44 17 82.5 302.2 0.5 119.8 -28 806 No stop 19 17 30 --- 16 47 17 81.9 299.8 0.5 117.1 152 829 19 14 31 19 17 30 J1619+2247 16 47 17 82.2 305.8 0.5 123.4 -25 829 No stop 19 18 30 --- 16 48 18 82.0 304.9 0.5 122.4 35 837 19 17 31 19 18 30 AT2018 16 48 18 81.7 299.0 0.5 116.3 -26 837 No stop 19 21 30 --- 16 51 18 81.0 297.1 0.6 114.1 154 860 19 18 31 19 21 30 J1619+2247 16 51 18 81.5 302.4 0.5 119.7 -23 860 No stop 19 22 30 --- 16 52 18 81.3 301.7 0.5 118.8 37 868 19 21 31 19 23 00 VLA1 16 52 48 80.6 296.1 0.6 112.9 6 868 19 23 00 19 25 00 --- 16 54 49 80.2 295.0 0.6 111.7 120 883 19 23 01 19 25 00 J1619+2247 16 54 49 80.7 299.9 0.6 116.9 -23 883 No stop 19 26 00 --- 16 55 49 80.5 299.3 0.6 116.1 37 891 19 25 01 19 26 00 AT2018 16 55 49 80.1 294.6 0.7 111.2 -23 891 No stop 19 29 00 --- 16 58 49 79.4 293.3 0.7 109.6 157 914 19 26 01 19 29 00 J1619+2247 16 58 49 79.9 297.6 0.6 114.1 -21 914 No stop 19 30 00 --- 16 59 50 79.7 297.0 0.7 113.5 39 922 19 29 01 19 30 00 AT2018 16 59 50 79.2 292.9 0.7 109.1 -22 922 No stop 19 32 00 --- 17 01 50 78.7 292.1 0.8 108.2 98 937 19 30 01 19 32 00 VLA2 17 01 50 78.9 292.6 0.7 108.7 -11 937 No stop 19 33 00 --- 17 02 50 78.7 292.2 0.8 108.2 49 945 19 32 01 19 33 30 J1619+2247 17 03 20 78.9 295.4 0.7 111.5 11 945 19 33 30 19 34 30 --- 17 04 20 78.7 294.9 0.7 111.0 60 952 19 33 31 19 34 30 AT2018 17 04 20 78.2 291.2 0.8 107.1 -23 952 No stop 19 37 30 --- 17 07 21 77.5 290.3 0.8 105.9 157 975 19 34 31 Schedule for ARECIBO (Code Ar ) Page 7 Revealing the radio structure in AT2018cow 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 20 Oct 2018 Day 293 --- 19 37 30 J1619+2247 17 07 21 78.1 293.7 0.8 109.6 -21 975 No stop 19 38 30 --- 17 08 21 77.9 293.4 0.8 109.1 39 983 19 37 31 19 38 30 AT2018 17 08 21 77.3 290.0 0.9 105.5 -23 983 No stop 19 41 30 --- 17 11 21 76.6 289.2 0.9 104.4 157 1006 19 38 31 19 41 30 J1619+2247 17 11 21 77.2 292.3 0.9 107.8 -21 1006 No stop 19 42 30 --- 17 12 22 77.0 292.0 0.9 107.4 39 1014 19 41 31 19 43 00 VLA1 17 12 52 76.2 288.8 0.9 103.9 4 1014 19 43 00 19 45 00 --- 17 14 52 75.8 288.3 1.0 103.2 120 1029 19 43 01 19 45 00 J1619+2247 17 14 52 76.4 291.3 0.9 106.5 -23 1029 No stop 19 46 00 --- 17 15 52 76.2 291.0 0.9 106.1 37 1037 19 45 01 19 46 00 AT2018 17 15 52 75.6 288.1 1.0 103.0 -24 1037 No stop 19 49 00 --- 17 18 53 74.9 287.5 1.0 102.1 156 1060 19 46 01 19 49 00 J1619+2247 17 18 53 75.5 290.3 1.0 105.1 -22 1060 No stop 19 50 00 --- 17 19 53 75.3 290.0 1.0 104.7 38 1068 19 49 01 19 50 00 AT2018 17 19 53 74.7 287.4 1.1 101.9 -25 1068 No stop 19 52 00 --- 17 21 53 74.3 287.0 1.1 101.3 95 1083 19 50 01 19 52 00 VLA2 17 21 53 74.4 287.3 1.1 101.7 -12 1083 No stop 19 53 00 --- 17 22 53 74.2 287.1 1.1 101.4 48 1091 19 52 01 19 53 30 J1619+2247 17 23 23 74.5 289.3 1.1 103.7 11 1091 19 53 30 19 54 30 --- 17 24 24 74.3 289.1 1.1 103.4 60 1098 19 53 31 19 54 30 AT2018 17 24 24 73.7 286.6 1.1 100.7 -25 1098 No stop 19 57 30 --- 17 27 24 73.0 286.2 1.2 100.0 155 1121 19 54 31 19 57 30 J1619+2247 17 27 24 73.6 288.5 1.1 102.5 -22 1121 No stop 20 00 00 --- 17 29 54 73.1 288.1 1.2 101.9 128 1140 19 57 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess318.C1024 Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq_RDBE.dat: arcb4 Using up-down conversion unit + VLBIinp at 1.5 MHz Setup group: 4 Station: ARECIBO Total bit rate: 1024 Format: MKIV1:2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 0.50 Disk used to record data. 1st LO= 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 1 2 3 4 3 4 5 6 5 6 7 8 7 8 BBC SB= U U L L U U L L U U L L U U L L IF = A C A C A C A C A C A C A C A C The following frequency sets based on these setups were used. Frequency Set: 17 Setup file default. Used with PCAL = off LO sum= 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 BBC fr= 807.51 807.51 807.51 807.51 775.51 775.51 775.51 775.51 743.51 743.51 743.51 743.51 711.51 711.51 711.51 711.51 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 17 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * AT2018 16 13 51.046576 * 16 16 00.224400 16 16 46.771551 0.00 22 23 28.30125 * 22 16 04.89000 22 13 37.85180 0.00 From catalog imbedded in main SCHED input file. * VLA1 16 13 32.504723 * 16 15 41.690800 16 16 28.239736 0.00 22 23 52.84715 * 22 16 28.22500 22 14 00.72800 0.00 From catalog imbedded in main SCHED input file. * VLA2 16 14 31.729582 * 16 16 40.813800 16 17 27.328421 0.00 22 26 17.16485 * 22 18 56.41100 22 16 30.38610 0.00 From catalog imbedded in main SCHED input file. * J1619+2247 16 17 06.466942 * 16 19 14.824599 16 20 01.075181 0.00 22 54 58.47384 * 22 47 47.85108 22 45 25.72085 0.00 From catalog imbedded in main SCHED input file. 3C345 16 41 17.606229 * 16 42 58.809967 16 43 34.871820 0.79 * J1642+3948 39 54 10.81492 * 39 48 36.99399 39 46 53.10993 0.59 1641+399 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J1642+39 GSFC 2016a X/S astro solution, 53724 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 AT2018 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 6.467 515.090 VLA1 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 1.167 104.821 VLA2 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 0.583 40.860 J1619+2247 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 3.017 206.076 J1642+3948 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 0.100 10.476 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) AT2018 50.3 VLA1 50.2 VLA2 50.5 J1619+2247 51.2 J1642+3948 65.7 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