COVER INFORMATION Station: ARECIBO (Code Ar ) Experiment: Revealing the radio structure in AT2018cow Exp. Code: RY007C 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 ---------------------------------------------------------------------------------------- --- Sun 21 Oct 2018 Day 294 --- 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 18 30 AT2018 14 51 54 69.7 75.4 -1.4 D -97.2 0 0 17 18 30 17 21 30 --- 14 54 55 70.4 75.1 -1.4 -97.7 0 23 17 18 31 17 23 00 VLA1 14 56 25 70.8 74.9 -1.3 -98.1 79 23 17 23 00 17 25 00 --- 14 58 26 71.3 74.7 -1.3 -98.5 120 38 17 23 01 17 25 00 J1619+2247 14 58 26 70.4 73.5 -1.4 -99.3 -28 38 No stop 17 26 00 --- 14 59 26 70.6 73.4 -1.3 -99.5 32 46 17 25 01 17 26 00 AT2018 14 59 26 71.5 74.6 -1.3 -98.6 -30 46 No stop 17 29 00 --- 15 02 26 72.2 74.3 -1.2 -99.2 150 69 17 26 01 17 29 00 J1619+2247 15 02 26 71.3 73.0 -1.3 -100.1 -27 69 No stop 17 30 00 --- 15 03 26 71.6 72.9 -1.3 -100.3 33 77 17 29 01 17 30 00 AT2018 15 03 26 72.4 74.2 -1.2 -99.4 -31 77 No stop 17 32 00 --- 15 05 27 72.8 73.9 -1.2 -99.8 89 92 17 30 01 17 32 00 VLA2 15 05 27 72.7 73.9 -1.2 -99.9 -12 92 No stop 17 33 00 --- 15 06 27 72.9 73.7 -1.2 -100.1 48 100 17 32 01 17 33 30 J1619+2247 15 06 57 72.3 72.4 -1.2 -101.1 7 100 17 33 30 17 34 30 --- 15 07 57 72.6 72.3 -1.2 -101.4 60 108 17 33 31 17 34 30 AT2018 15 07 57 73.4 73.6 -1.1 -100.4 -31 108 No stop 17 37 30 --- 15 10 58 74.1 73.1 -1.1 -101.2 149 131 17 34 31 17 37 30 J1619+2247 15 10 58 73.3 71.8 -1.2 -102.1 -27 131 No stop 17 38 30 --- 15 11 58 73.5 71.6 -1.1 -102.4 33 138 17 37 31 17 38 30 AT2018 15 11 58 74.3 72.9 -1.1 -101.4 -31 138 No stop 17 41 30 --- 15 14 58 75.0 72.4 -1.0 -102.2 149 161 17 38 31 17 41 30 J1619+2247 15 14 58 74.2 71.1 -1.1 -103.2 -27 161 No stop 17 42 30 --- 15 15 58 74.4 70.9 -1.1 -103.5 33 169 17 41 31 17 43 00 VLA1 15 16 29 75.4 72.0 -1.0 -102.8 -3 169 17 43 00 17 45 00 --- 15 18 29 75.9 71.6 -1.0 -103.4 117 184 17 43 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 ---------------------------------------------------------------------------------------- --- Sun 21 Oct 2018 Day 294 --- 17 45 00 J1619+2247 15 18 29 74.9 70.4 -1.0 -104.2 -29 184 No stop 17 46 00 --- 15 19 29 75.2 70.1 -1.0 -104.5 31 192 17 45 01 17 46 00 AT2018 15 19 29 76.0 71.5 -1.0 -103.5 -31 192 No stop 17 49 00 --- 15 22 30 76.7 70.8 -0.9 -104.5 149 215 17 46 01 17 49 00 J1619+2247 15 22 30 75.8 69.4 -1.0 -105.5 -27 215 No stop 17 50 00 --- 15 23 30 76.1 69.2 -0.9 -105.9 33 223 17 49 01 17 50 00 AT2018 15 23 30 76.9 70.5 -0.9 -104.9 -31 223 No stop 17 52 00 --- 15 25 30 77.4 69.9 -0.9 -105.6 89 238 17 50 01 17 52 00 VLA2 15 25 30 77.2 69.9 -0.9 -105.5 -12 238 No stop 17 53 00 --- 15 26 30 77.4 69.6 -0.8 -105.9 48 246 17 52 01 17 53 30 J1619+2247 15 27 00 76.8 68.2 -0.9 -107.2 6 246 17 53 30 17 54 30 --- 15 28 00 77.1 67.9 -0.9 -107.5 60 253 17 53 31 17 54 30 AT2018 15 28 00 77.9 69.2 -0.8 -106.6 -32 253 No stop 17 57 30 --- 15 31 01 78.6 68.2 -0.8 -107.8 148 276 17 54 31 17 57 30 J1619+2247 15 31 01 77.7 66.9 -0.8 -108.8 -28 276 No stop 17 58 30 --- 15 32 01 77.9 66.5 -0.8 -109.3 32 284 17 57 31 17 58 30 AT2018 15 32 01 78.8 67.8 -0.7 -108.3 -32 284 No stop 18 01 30 --- 15 35 02 79.5 66.6 -0.7 -109.8 148 307 17 58 31 18 01 30 J1619+2247 15 35 02 78.6 65.4 -0.7 -110.7 -28 307 No stop 18 02 30 --- 15 36 02 78.8 64.9 -0.7 -111.2 32 315 18 01 31 18 03 00 VLA1 15 36 32 79.9 65.8 -0.7 -110.8 -4 315 18 03 00 18 05 00 --- 15 38 32 80.3 64.8 -0.6 -111.9 116 330 18 03 01 18 05 00 J1619+2247 15 38 32 79.3 63.8 -0.7 -112.5 -30 330 No stop 18 06 00 --- 15 39 32 79.6 63.3 -0.7 -113.1 30 338 18 05 01 18 06 00 AT2018 15 39 32 80.4 64.5 -0.6 -112.3 -32 338 No stop 18 09 00 --- 15 42 33 81.1 62.7 -0.6 -114.3 148 361 18 06 01 18 09 00 J1619+2247 15 42 33 80.2 61.7 -0.6 -115.0 -28 361 No stop 18 10 00 --- 15 43 33 80.4 61.1 -0.6 -115.7 32 369 18 09 01 18 10 00 AT2018 15 43 33 81.3 62.1 -0.6 -115.0 -32 369 No stop 18 12 00 --- 15 45 33 81.7 60.7 -0.5 -116.5 88 384 18 10 01 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 ---------------------------------------------------------------------------------------- --- Sun 21 Oct 2018 Day 294 --- 18 12 00 VLA2 15 45 33 81.6 60.9 -0.5 -116.3 -12 384 No stop 18 13 00 --- 15 46 33 81.8 60.2 -0.5 -117.1 48 392 18 12 01 18 13 30 J1619+2247 15 47 04 81.1 58.8 -0.5 -118.3 5 392 18 13 30 18 14 30 --- 15 48 04 81.3 58.1 -0.5 -119.1 60 399 18 13 31 18 14 30 AT2018 15 48 04 82.2 58.8 -0.5 -118.7 -32 399 No stop 18 17 30 --- 15 51 04 82.8 56.1 -0.4 -121.6 148 422 18 14 31 18 17 30 J1619+2247 15 51 04 81.9 55.7 -0.5 -121.8 -29 422 No stop 18 18 30 --- 15 52 04 82.1 54.8 -0.5 -122.7 31 430 18 17 31 18 18 30 AT2018 15 52 04 83.0 55.1 -0.4 -122.7 -32 430 No stop 18 21 30 --- 15 55 05 83.6 51.7 -0.4 -126.4 148 453 18 18 31 18 21 30 J1619+2247 15 55 05 82.7 51.9 -0.4 -126.0 -29 453 No stop 18 22 30 --- 15 56 05 82.9 50.8 -0.4 -127.1 31 461 18 21 31 18 23 00 VLA1 15 56 35 83.9 49.3 -0.3 -128.9 -4 461 18 23 00 18 25 00 --- 15 58 35 84.3 46.4 -0.3 -132.1 116 476 18 23 01 18 25 00 J1619+2247 15 58 35 83.3 47.7 -0.4 -130.4 -30 476 No stop 18 26 00 --- 15 59 36 83.5 46.4 -0.3 -131.8 30 484 18 25 01 18 26 00 AT2018 15 59 36 84.4 45.3 -0.3 -133.2 -32 484 No stop 18 29 00 --- 16 02 36 84.9 40.0 -0.2 -138.8 148 507 18 26 01 18 29 00 J1619+2247 16 02 36 84.0 42.0 -0.3 -136.5 -29 507 No stop 18 30 00 --- 16 03 36 84.1 40.3 -0.3 -138.2 31 515 18 29 01 18 30 00 AT2018 16 03 36 85.0 37.9 -0.2 -140.9 -31 515 No stop 18 32 00 --- 16 05 37 85.3 33.5 -0.2 -145.5 89 530 18 30 01 18 32 00 VLA2 16 05 37 85.2 34.7 -0.2 -144.2 -13 530 No stop 18 33 00 --- 16 06 37 85.3 32.4 -0.2 -146.6 47 538 18 32 01 18 33 30 J1619+2247 16 07 07 84.7 33.8 -0.2 -145.0 5 538 18 33 30 18 34 30 --- 16 08 07 84.8 31.8 -0.2 -147.2 60 545 18 33 31 18 34 30 AT2018 16 08 07 85.6 27.2 -0.1 -152.0 -30 545 No stop 18 37 30 --- 16 11 07 85.9 18.6 -0.1 -160.9 150 568 18 34 31 18 37 30 J1619+2247 16 11 07 85.1 24.9 -0.1 -154.3 -26 568 No stop 18 38 30 --- 16 12 08 85.2 22.4 -0.1 -156.9 34 576 18 37 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 ---------------------------------------------------------------------------------------- --- Sun 21 Oct 2018 Day 294 --- 18 38 30 AT2018 16 12 08 86.0 15.5 -0.1 -164.1 -30 576 No stop 18 41 30 --- 16 15 08 86.1 5.6 -0.0 -174.3 150 599 18 38 31 18 41 30 J1619+2247 16 15 08 85.4 14.3 -0.1 -165.3 -29 599 No stop 18 42 30 --- 16 16 08 85.5 11.5 -0.1 -168.2 31 607 18 41 31 18 43 00 VLA1 16 16 38 86.1 359.4 0.0 W 179.4 -724 607 18 43 00 18 45 00 --- 16 18 39 86.1 352.6 0.0 W 172.4 0 622 18 43 01 18 45 00 J1619+2247 16 18 39 85.6 364.1 -0.0 -175.8 -35 622 No stop 18 46 00 --- 16 19 39 85.6 361.1 -0.0 -178.9 25 630 18 45 01 18 46 00 AT2018 16 19 39 86.1 350.3 0.0 170.0 -41 630 No stop 18 49 00 --- 16 22 39 85.9 340.7 0.1 160.2 139 653 18 46 01 18 49 00 J1619+2247 16 22 39 85.5 352.1 0.0 171.9 -35 653 No stop 18 50 00 --- 16 23 40 85.5 349.2 0.1 168.9 25 660 18 49 01 18 50 00 AT2018 16 23 40 85.8 337.7 0.1 157.1 -42 660 No stop 18 52 00 --- 16 25 40 85.6 332.2 0.1 151.4 78 676 18 50 01 18 52 00 VLA2 16 25 40 85.6 334.3 0.1 153.5 -15 676 No stop 18 53 00 --- 16 26 40 85.5 331.6 0.2 150.8 45 684 18 52 01 18 53 30 J1619+2247 16 27 10 85.3 339.5 0.1 158.9 -1 684 18 53 30 18 54 30 --- 16 28 10 85.2 337.0 0.1 156.2 59 691 18 53 31 18 54 30 AT2018 16 28 10 85.3 326.0 0.2 145.0 -40 691 No stop 18 57 30 --- 16 31 11 84.9 319.6 0.2 138.3 140 714 18 54 31 18 57 30 J1619+2247 16 31 11 84.9 329.8 0.2 148.9 -33 714 No stop 18 58 30 --- 16 32 11 84.7 327.7 0.2 146.6 27 722 18 57 31 18 58 30 AT2018 16 32 11 84.7 317.7 0.3 136.4 -37 722 No stop 19 01 30 --- 16 35 11 84.2 312.7 0.3 131.1 143 745 18 58 31 19 01 30 J1619+2247 16 35 11 84.3 321.8 0.3 140.5 -31 745 No stop 19 02 30 --- 16 36 12 84.2 320.1 0.3 138.6 29 753 19 01 31 19 03 00 VLA1 16 36 42 83.9 310.2 0.3 128.5 -5 753 19 03 00 19 05 00 --- 16 38 42 83.5 307.7 0.4 125.7 115 768 19 03 01 19 05 00 J1619+2247 16 38 42 83.8 316.1 0.3 134.4 -30 768 No stop 19 06 00 --- 16 39 42 83.6 314.6 0.3 132.9 30 776 19 05 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 ---------------------------------------------------------------------------------------- --- Sun 21 Oct 2018 Day 294 --- 19 06 00 AT2018 16 39 42 83.4 306.8 0.4 124.8 -31 776 No stop 19 09 00 --- 16 42 43 82.8 303.7 0.4 121.4 149 799 19 06 01 19 09 00 J1619+2247 16 42 43 83.1 310.7 0.4 128.7 -27 799 No stop 19 10 00 --- 16 43 43 82.9 309.5 0.4 127.4 33 806 19 09 01 19 10 00 AT2018 16 43 43 82.6 302.7 0.4 120.4 -28 806 No stop 19 12 00 --- 16 45 43 82.2 301.0 0.5 118.5 92 822 19 10 01 19 12 00 VLA2 16 45 43 82.3 301.9 0.5 119.4 -13 822 No stop 19 13 00 --- 16 46 43 82.1 301.0 0.5 118.5 47 829 19 12 01 19 13 30 J1619+2247 16 47 13 82.3 305.9 0.5 123.5 7 829 19 13 30 19 14 30 --- 16 48 14 82.1 305.0 0.5 122.5 60 837 19 13 31 19 14 30 AT2018 16 48 14 81.7 299.1 0.5 116.4 -26 837 No stop 19 17 30 --- 16 51 14 81.0 297.1 0.6 114.1 154 860 19 14 31 19 17 30 J1619+2247 16 51 14 81.5 302.5 0.5 119.7 -23 860 No stop 19 18 30 --- 16 52 14 81.3 301.7 0.5 118.9 37 868 19 17 31 19 18 30 AT2018 16 52 14 80.8 296.5 0.6 113.4 -24 868 No stop 19 21 30 --- 16 55 15 80.2 294.9 0.6 111.6 156 891 19 18 31 19 21 30 J1619+2247 16 55 15 80.7 299.6 0.6 116.6 -22 891 No stop 19 22 30 --- 16 56 15 80.4 299.0 0.6 115.8 38 899 19 21 31 19 23 00 VLA1 16 56 45 79.8 294.1 0.7 110.6 7 899 19 23 00 19 25 00 --- 16 58 45 79.4 293.2 0.7 109.5 120 914 19 23 01 19 25 00 J1619+2247 16 58 45 79.9 297.6 0.6 114.2 -21 914 No stop 19 26 00 --- 16 59 45 79.7 297.1 0.7 113.6 39 922 19 25 01 19 26 00 AT2018 16 59 45 79.2 292.9 0.7 109.1 -22 922 No stop 19 29 00 --- 17 02 46 78.5 291.7 0.8 107.7 158 945 19 26 01 19 29 00 J1619+2247 17 02 46 79.1 295.6 0.7 111.8 -20 945 No stop 19 30 00 --- 17 03 46 78.9 295.2 0.7 111.3 40 952 19 29 01 19 30 00 AT2018 17 03 46 78.3 291.4 0.8 107.3 -23 952 No stop 19 32 00 --- 17 05 46 77.9 290.7 0.8 106.5 97 968 19 30 01 19 32 00 VLA2 17 05 46 78.0 291.2 0.8 107.0 -11 968 No stop 19 33 00 --- 17 06 47 77.8 290.9 0.8 106.6 49 975 19 32 01 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 ---------------------------------------------------------------------------------------- --- Sun 21 Oct 2018 Day 294 --- 19 33 30 J1619+2247 17 07 17 78.1 293.8 0.8 109.6 12 975 19 33 30 19 34 30 --- 17 08 17 77.9 293.4 0.8 109.1 60 983 19 33 31 19 34 30 AT2018 17 08 17 77.3 290.0 0.9 105.5 -23 983 No stop 19 37 30 --- 17 11 17 76.6 289.2 0.9 104.4 157 1006 19 34 31 19 37 30 J1619+2247 17 11 17 77.2 292.4 0.9 107.8 -21 1006 No stop 19 38 30 --- 17 12 17 77.0 292.1 0.9 107.4 39 1014 19 37 31 19 38 30 AT2018 17 12 17 76.4 288.9 0.9 104.1 -24 1014 No stop 19 41 30 --- 17 15 18 75.7 288.3 1.0 103.2 156 1037 19 38 31 19 41 30 J1619+2247 17 15 18 76.3 291.2 0.9 106.3 -21 1037 No stop 19 42 30 --- 17 16 18 76.1 290.9 0.9 105.9 39 1044 19 41 31 19 43 00 VLA1 17 16 48 75.3 287.9 1.0 102.7 4 1044 19 43 00 19 45 00 --- 17 18 49 74.9 287.5 1.0 102.1 120 1060 19 43 01 19 45 00 J1619+2247 17 18 49 75.6 290.3 1.0 105.1 -23 1060 No stop 19 46 00 --- 17 19 49 75.3 290.0 1.0 104.8 37 1068 19 45 01 19 46 00 AT2018 17 19 49 74.7 287.4 1.1 101.9 -25 1068 No stop 19 49 00 --- 17 22 49 74.0 286.9 1.1 101.1 155 1091 19 46 01 19 49 00 J1619+2247 17 22 49 74.7 289.4 1.0 103.8 -22 1091 No stop 19 50 00 --- 17 23 49 74.4 289.2 1.1 103.5 38 1098 19 49 01 19 50 00 AT2018 17 23 49 73.8 286.7 1.1 100.9 -25 1098 No stop 19 52 00 --- 17 25 50 73.4 286.4 1.2 100.4 95 1114 19 50 01 19 52 00 VLA2 17 25 50 73.5 286.7 1.1 100.7 -12 1114 No stop 19 53 00 --- 17 26 50 73.3 286.5 1.2 100.5 48 1121 19 52 01 19 53 30 J1619+2247 17 27 20 73.6 288.5 1.1 102.6 11 1121 19 53 30 19 54 30 --- 17 28 20 73.4 288.3 1.1 102.3 60 1129 19 53 31 19 54 30 AT2018 17 28 20 72.8 286.0 1.2 99.8 -25 1129 No stop 19 57 30 --- 17 31 21 72.1 285.7 1.2 99.2 155 1152 19 54 31 19 57 30 J1619+2247 17 31 21 72.7 287.8 1.2 101.5 -23 1152 No stop 20 00 00 --- 17 33 51 72.2 287.5 1.2 100.9 127 1171 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 46.757813 0.00 22 23 28.30125 * 22 16 04.89000 22 13 37.66756 0.00 From catalog imbedded in main SCHED input file. * VLA1 16 13 32.504723 * 16 15 41.690800 16 16 28.226025 0.00 22 23 52.84715 * 22 16 28.22500 22 14 00.54363 0.00 From catalog imbedded in main SCHED input file. * VLA2 16 14 31.729582 * 16 16 40.813800 16 17 27.314618 0.00 22 26 17.16485 * 22 18 56.41100 22 16 30.20193 0.00 From catalog imbedded in main SCHED input file. * J1619+2247 16 17 06.466942 * 16 19 14.824599 16 20 01.061096 0.00 22 54 58.47384 * 22 47 47.85108 22 45 25.53578 0.00 From catalog imbedded in main SCHED input file. 3C345 16 41 17.606229 * 16 42 58.809967 16 43 34.851986 0.79 * J1642+3948 39 54 10.81492 * 39 48 36.99399 39 46 52.88278 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 + 6.467 512.682 VLA1 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 1.167 104.376 VLA2 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 0.583 40.744 J1619+2247 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 3.017 205.359 J1642+3948 sess318.C1024 1 2 3 4 5 6 7 8 9 10 14 15 + 0.100 10.444 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 49.8 VLA1 49.8 VLA2 50.0 J1619+2247 50.8 J1642+3948 65.4 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