COVER INFORMATION Station: DARNHALL (Code Da ) Experiment: Accurate Localization of FAST FRB 190520 and its Host Exp. Code: RZ001B Schedule Version: 2.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Chenhui Niu Address: National Astronomical Observatories, CAS 20A Datun Road, Chaoyang District 100012, Beijing China Phone: 86 010 64888708 EMAIL: peterniu@@nao.cas.cn Fax: Phone during observation: Observing mode: Notes: SCHED key file contact person: Bo Zhang, zb@shao.ac.cn PLEASE TURN OFF CONTINUOUS-CAL AND AUTOMATIC GAIN CONTROL SYSTEMS AS WELL AS PHASE-CAL TONES v2 with out-stations Schedule for DARNHALL (Code Da ) Page 2 Accurate Localization of FAST FRB 190520 and its Host 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 ---------------------------------------------------------------------------------------- --- Mon 22 Jun 2020 Day 174 --- Next scan frequencies: 1626.49 1626.49 Next BBC frequencies: 645.51 645.51 Next scan bandwidths: 64.00 64.00 19 30 00 1600+335 13 25 37 55.9 109.4 -2.6 -42.6 0 0 19 30 00 19 32 00 --- 13 27 37 56.2 110.0 -2.6 -42.4 120 8 19 30 01 19 35 25 J1605-1139 13 31 03 17.1 140.0 -2.6 -23.2 65 8 19 35 25 19 36 45 --- 13 32 23 17.3 140.3 -2.6 -23.0 80 13 19 35 26 19 36 45 FRB190520 13 32 23 17.9 140.9 -2.5 -22.7 -15 13 No stop 19 41 45 --- 13 37 24 18.4 142.1 -2.4 -22.0 285 32 19 36 46 19 41 45 J1605-1139 13 37 24 17.8 141.5 -2.5 -22.4 -14 32 No stop 19 43 15 --- 13 38 54 17.9 141.9 -2.5 -22.2 76 38 19 41 46 19 43 55 FRB190520 13 39 34 18.6 142.7 -2.4 -21.8 25 38 19 43 55 19 48 55 --- 13 44 35 19.0 143.9 -2.3 -21.1 300 57 19 43 56 19 48 55 J1605-1139 13 44 35 18.4 143.2 -2.4 -21.5 -14 57 No stop 19 50 25 --- 13 46 05 18.5 143.6 -2.3 -21.3 76 63 19 48 56 19 51 05 FRB190520 13 46 45 19.2 144.4 -2.3 -20.9 25 63 19 51 05 19 56 05 --- 13 51 46 19.7 145.6 -2.2 -20.2 300 82 19 51 06 19 56 05 J1605-1139 13 51 46 19.0 145.0 -2.2 -20.6 -14 82 No stop 19 57 35 --- 13 53 16 19.2 145.3 -2.2 -20.4 76 88 19 56 06 19 58 15 FRB190520 13 53 57 19.8 146.1 -2.2 -19.9 25 88 19 58 15 20 03 15 --- 13 58 57 20.3 147.4 -2.1 -19.2 300 108 19 58 16 20 03 15 J1605-1139 13 58 57 19.6 146.7 -2.1 -19.6 -14 108 No stop 20 04 45 --- 14 00 28 19.8 147.1 -2.1 -19.4 76 113 20 03 16 20 05 25 FRB190520 14 01 08 20.4 147.9 -2.0 -19.0 24 113 20 05 25 20 10 25 --- 14 06 09 20.8 149.2 -2.0 -18.3 300 133 20 05 26 20 10 25 J1605-1139 14 06 09 20.2 148.5 -2.0 -18.7 -15 133 No stop 20 11 55 --- 14 07 39 20.3 148.8 -2.0 -18.5 75 138 20 10 26 20 12 35 FRB190520 14 08 19 21.0 149.7 -1.9 -18.0 24 138 20 12 35 20 17 35 --- 14 13 20 21.4 151.0 -1.8 -17.3 300 158 20 12 36 20 17 35 J1605-1139 14 13 20 20.8 150.3 -1.9 -17.7 -15 158 No stop 20 19 05 --- 14 14 50 20.9 150.6 -1.9 -17.5 75 164 20 17 36 Schedule for DARNHALL (Code Da ) Page 3 Accurate Localization of FAST FRB 190520 and its Host 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 ---------------------------------------------------------------------------------------- --- Mon 22 Jun 2020 Day 174 --- 20 19 45 FRB190520 14 15 30 21.5 151.5 -1.8 -17.0 24 164 20 19 45 20 24 45 --- 14 20 31 21.9 152.8 -1.7 -16.2 300 183 20 19 46 20 24 45 J1605-1139 14 20 31 21.3 152.1 -1.8 -16.7 -15 183 No stop 20 26 15 --- 14 22 01 21.4 152.4 -1.7 -16.5 75 189 20 24 46 20 26 55 FRB190520 14 22 41 22.0 153.3 -1.7 -15.9 24 189 20 26 55 20 31 55 --- 14 27 42 22.3 154.6 -1.6 -15.2 300 208 20 26 56 20 31 55 J1605-1139 14 27 42 21.8 153.9 -1.6 -15.6 -15 208 No stop 20 33 25 --- 14 29 12 21.9 154.3 -1.6 -15.4 75 214 20 31 56 20 34 05 FRB190520 14 29 52 22.5 155.2 -1.6 -14.9 24 214 20 34 05 20 39 05 --- 14 34 53 22.8 156.4 -1.5 -14.1 300 233 20 34 06 20 39 05 J1605-1139 14 34 53 22.2 155.7 -1.5 -14.6 -15 233 No stop 20 40 35 --- 14 36 24 22.3 156.1 -1.5 -14.4 75 239 20 39 06 20 44 10 1611+343 14 40 00 64.7 129.2 -1.6 -34.2 66 239 20 44 10 20 46 10 --- 14 42 10 64.9 130.0 -1.5 -33.7 120 247 20 44 11 20 49 45 J1605-1139 14 45 35 22.9 158.5 -1.3 -13.0 66 247 20 49 45 20 51 05 --- 14 46 56 22.9 158.8 -1.3 -12.8 80 252 20 49 46 20 51 05 FRB190520 14 46 56 23.5 159.6 -1.3 -12.3 -16 252 No stop 20 56 05 --- 14 51 56 23.7 160.9 -1.2 -11.6 284 271 20 51 06 20 56 05 J1605-1139 14 51 56 23.2 160.1 -1.2 -12.0 -15 271 No stop 20 57 35 --- 14 53 27 23.3 160.5 -1.2 -11.8 75 277 20 56 06 20 58 15 FRB190520 14 54 07 23.8 161.5 -1.2 -11.2 23 277 20 58 15 21 03 15 --- 14 59 08 24.1 162.8 -1.1 -10.4 300 296 20 58 16 21 03 15 J1605-1139 14 59 08 23.6 162.0 -1.1 -10.9 -15 296 No stop 21 04 38 --- 15 00 31 23.6 162.4 -1.1 -10.7 68 302 21 03 16 21 05 18 FRB190520 15 01 11 24.1 163.3 -1.0 -10.1 23 302 21 05 18 21 10 18 --- 15 06 12 24.4 164.6 -0.9 -9.3 300 321 21 05 19 21 10 18 J1605-1139 15 06 12 23.9 163.9 -1.0 -9.8 -16 321 No stop 21 11 41 --- 15 07 35 23.9 164.2 -1.0 -9.6 67 326 21 10 19 21 12 21 FRB190520 15 08 15 24.4 165.2 -0.9 -9.0 23 326 21 12 21 21 17 21 --- 15 13 16 24.6 166.5 -0.8 -8.2 300 346 21 12 22 Schedule for DARNHALL (Code Da ) Page 4 Accurate Localization of FAST FRB 190520 and its Host 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 ---------------------------------------------------------------------------------------- --- Mon 22 Jun 2020 Day 174 --- 21 17 21 J1605-1139 15 13 16 24.1 165.7 -0.9 -8.7 -16 346 No stop 21 18 44 --- 15 14 39 24.2 166.1 -0.9 -8.5 67 351 21 17 22 21 19 24 FRB190520 15 15 19 24.7 167.1 -0.8 -7.9 23 351 21 19 24 21 24 24 --- 15 20 20 24.8 168.4 -0.7 -7.1 300 370 21 19 25 21 24 24 J1605-1139 15 20 20 24.4 167.6 -0.8 -7.6 -16 370 No stop 21 25 47 --- 15 21 43 24.4 168.0 -0.7 -7.3 67 376 21 24 25 21 26 27 FRB190520 15 22 23 24.9 169.0 -0.7 -6.7 23 376 21 26 27 21 31 27 --- 15 27 24 25.0 170.3 -0.6 -5.9 300 395 21 26 28 21 31 27 J1605-1139 15 27 24 24.6 169.5 -0.7 -6.4 -16 395 No stop 21 32 50 --- 15 28 48 24.6 169.9 -0.6 -6.2 67 400 21 31 28 21 33 30 FRB190520 15 29 28 25.1 170.9 -0.6 -5.6 23 400 21 33 30 21 38 30 --- 15 34 28 25.2 172.2 -0.5 -4.7 300 420 21 33 31 21 38 30 J1605-1139 15 34 28 24.8 171.4 -0.5 -5.3 -16 420 No stop 21 39 53 --- 15 35 52 24.8 171.8 -0.5 -5.0 67 425 21 38 31 21 40 33 FRB190520 15 36 32 25.2 172.8 -0.4 -4.4 23 425 21 40 33 21 45 33 --- 15 41 33 25.3 174.1 -0.4 -3.6 300 444 21 40 34 21 45 33 J1605-1139 15 41 33 24.9 173.3 -0.4 -4.1 -16 444 No stop 21 46 56 --- 15 42 56 24.9 173.7 -0.4 -3.9 67 450 21 45 34 21 47 36 FRB190520 15 43 36 25.4 174.7 -0.3 -3.2 23 450 21 47 36 21 52 36 --- 15 48 37 25.4 176.1 -0.2 -2.4 300 469 21 47 37 21 52 36 J1605-1139 15 48 37 25.0 175.2 -0.3 -2.9 -16 469 No stop 21 53 59 --- 15 50 00 25.0 175.6 -0.3 -2.7 67 474 21 52 37 21 58 05 1641+399 15 54 06 74.2 142.8 -0.8 -28.2 76 474 21 58 05 22 00 05 --- 15 56 17 74.4 144.1 -0.8 -27.2 120 482 21 58 06 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess220.L1024 --- 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: 9 Station: DARNHALL Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 2 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 2272.00 2272.00 Net SB= U U IF SB = L L Pol. = RCP LCP BBC = 1 9 BBC SB= L L IF = A1 B1 The following frequency sets based on these setups were used. Frequency Set: 8 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 BBC fr= 645.51 645.51 Bandwd= 64.00 64.00 Matching frequency sets: 8 9 10 11 12 Track assignments are: track1= 1, 2 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * 1600+335 16 00 11.909370 * 16 02 07.263500 16 02 55.082054 0.00 33 35 09.59231 * 33 26 53.07200 33 23 41.36848 0.00 From catalog imbedded in main SCHED input file. * 1611+343 16 11 47.914209 * 16 13 41.064200 16 14 28.049355 0.00 34 20 19.83398 * 34 12 47.90900 34 09 53.80790 0.00 From catalog imbedded in main SCHED input file. * 1641+399 16 41 17.606263 * 16 42 58.810000 16 43 41.188996 0.00 39 54 10.81494 * 39 48 36.99400 39 46 29.58639 0.00 From catalog imbedded in main SCHED input file. * J1605-1139 16 02 31.767616 * 16 05 17.531700 16 06 25.527812 0.00 -11 31 20.63016 *-11 39 26.83100 -11 42 41.06438 0.00 From catalog imbedded in main SCHED input file. * FRB190520 15 59 16.359238 * 16 02 01.640000 16 03 09.430530 0.00 -11 09 09.88153 *-11 17 28.50000 -11 20 47.75530 0.00 From catalog imbedded in main SCHED input file. 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 1600+335 sess220.L1024 1 2 3 4 5 6 7 8 0.033 2.200 1611+343 sess220.L1024 1 2 3 4 5 6 7 8 0.033 2.200 1641+399 sess220.L1024 1 2 3 4 5 6 7 8 0.033 2.200 J1605-1139 sess220.L1024 1 2 3 4 5 6 7 8 0.479 23.505 FRB190520 sess220.L1024 1 2 3 4 5 6 7 8 1.500 90.093 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) 1600+335 115.8 1611+343 116.4 1641+399 113.8 J1605-1139 148.8 FRB190520 147.9 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