COVER INFORMATION Station: WSTRBORK (Code Wb ) Experiment: Dual AGN J1328+2752 Exp. Code: EN008A Schedule Version: 4.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Sumana Nandi Address: National Centre for Radio Astrophysics - TIFR S.P. Pune Univ. Campus, Ganeshkhind Pune 411007 India Phone: +91 9845687023 EMAIL: sumana1981@gmail.com Fax: 91-020-25692149 Phone during observation: +91 9845687023 Observing mode: Phase-referenced continuum observation at 3.6cm Notes: v4 to 2Gbps, with PC approval Schedule for WSTRBORK (Code Wb ) Page 2 Dual AGN J1328+2752 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 ---------------------------------------------------------------------------------------- --- Fri 12 Mar 2021 Day 71 --- Next scan frequencies: 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 Next BBC frequencies: 371.49 371.49 371.49 371.49 435.49 435.49 435.49 435.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 21 00 00 J1327+2210 08 49 17 29.6 92.0 -4.6 0.0 0 0 21 00 00 21 05 30 --- 08 54 48 30.4 93.1 -4.6 0.0 330 43 21 00 01 21 05 30 J1333+2725 08 54 48 33.4 87.8 -4.7 0.0 -30 43 No stop 21 07 30 --- 08 56 48 33.7 88.2 -4.6 0.0 90 58 21 05 31 21 07 30 J1328+2752 08 56 48 34.7 88.7 -4.6 0.0 -17 58 No stop 21 11 00 --- 09 00 19 35.2 89.3 -4.5 0.0 193 85 21 07 31 21 11 00 J1333+2725 09 00 19 34.3 88.9 -4.6 0.0 -17 85 No stop 21 12 30 --- 09 01 49 34.5 89.2 -4.5 0.0 73 97 21 11 01 21 13 10 J1328+2752 09 02 29 35.6 89.8 -4.5 0.0 23 97 21 13 10 21 16 00 --- 09 05 20 36.0 90.3 -4.4 0.0 170 119 21 13 11 21 16 30 J1333+2725 09 05 50 35.1 90.0 -4.5 0.0 13 119 21 16 30 21 18 00 --- 09 07 20 35.3 90.3 -4.4 0.0 90 130 21 16 31 21 18 00 J1328+2752 09 07 20 36.3 90.7 -4.4 0.0 -17 130 No stop 21 21 30 --- 09 10 50 36.8 91.5 -4.3 0.0 193 157 21 18 01 21 21 30 J1333+2725 09 10 50 35.8 91.0 -4.4 0.0 -17 157 No stop 21 23 00 --- 09 12 21 36.1 91.3 -4.4 0.0 73 169 21 21 31 21 23 40 J1328+2752 09 13 01 37.1 91.9 -4.3 0.0 23 169 21 23 40 21 26 30 --- 09 15 51 37.6 92.5 -4.2 0.0 170 191 21 23 41 21 27 00 J1333+2725 09 16 21 36.7 92.1 -4.3 0.0 13 191 21 27 00 21 28 30 --- 09 17 52 36.9 92.4 -4.3 0.0 90 202 21 27 01 21 28 30 J1328+2752 09 17 52 37.9 92.9 -4.2 0.0 -17 202 No stop 21 32 00 --- 09 21 22 38.4 93.6 -4.1 0.0 193 229 21 28 31 21 32 00 J1333+2725 09 21 22 37.4 93.1 -4.2 0.0 -17 229 No stop 21 33 30 --- 09 22 52 37.6 93.4 -4.2 0.0 73 241 21 32 01 21 34 10 J1328+2752 09 23 33 38.7 94.1 -4.1 0.0 23 241 21 34 10 21 37 00 --- 09 26 23 39.2 94.7 -4.1 0.0 170 263 21 34 11 21 37 30 J1333+2725 09 26 53 38.3 94.2 -4.1 0.0 13 263 21 37 30 21 39 00 --- 09 28 23 38.5 94.6 -4.1 0.0 90 274 21 37 31 Schedule for WSTRBORK (Code Wb ) Page 3 Dual AGN J1328+2752 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 ---------------------------------------------------------------------------------------- --- Fri 12 Mar 2021 Day 71 --- 21 39 00 J1328+2752 09 28 23 39.5 95.1 -4.0 0.0 -17 274 No stop 21 42 30 --- 09 31 54 40.0 95.8 -4.0 0.0 193 301 21 39 01 21 42 30 J1333+2725 09 31 54 39.0 95.3 -4.0 0.0 -17 301 No stop 21 44 00 --- 09 33 24 39.2 95.6 -4.0 0.0 73 313 21 42 31 21 44 40 J1328+2752 09 34 04 40.3 96.3 -3.9 0.0 23 313 21 44 40 21 47 30 --- 09 36 55 40.7 96.9 -3.9 0.0 170 335 21 44 41 21 48 00 J1333+2725 09 37 25 39.8 96.5 -3.9 0.0 13 335 21 48 00 21 49 30 --- 09 38 55 40.1 96.8 -3.9 0.0 90 347 21 48 01 21 49 30 J1328+2752 09 38 55 41.0 97.3 -3.8 0.0 -17 347 No stop 21 53 00 --- 09 42 26 41.6 98.1 -3.8 0.0 193 374 21 49 31 21 53 00 J1333+2725 09 42 26 40.6 97.5 -3.9 0.0 -17 374 No stop 21 54 30 --- 09 43 56 40.8 97.9 -3.8 0.0 73 385 21 53 01 21 55 10 J1328+2752 09 44 36 41.9 98.6 -3.8 0.0 23 385 21 55 10 21 58 00 --- 09 47 26 42.3 99.2 -3.7 0.0 170 407 21 55 11 21 58 30 J1333+2725 09 47 57 41.4 98.7 -3.8 0.0 13 407 21 58 30 22 00 00 --- 09 49 27 41.6 99.1 -3.7 0.0 90 419 21 58 31 22 00 00 J1328+2752 09 49 27 42.6 99.6 -3.7 0.0 -17 419 No stop 22 03 30 --- 09 52 57 43.1 100.4 -3.6 0.0 193 446 22 00 01 22 03 30 J1333+2725 09 52 57 42.2 99.9 -3.7 0.0 -17 446 No stop 22 05 00 --- 09 54 28 42.4 100.2 -3.7 0.0 73 457 22 03 31 22 05 40 J1328+2752 09 55 08 43.4 100.9 -3.6 0.0 23 457 22 05 40 22 08 30 --- 09 57 58 43.9 101.5 -3.5 0.0 170 479 22 05 41 22 09 00 J1333+2725 09 58 28 43.0 101.1 -3.6 0.0 13 479 22 09 00 22 10 30 --- 09 59 58 43.2 101.4 -3.6 0.0 90 491 22 09 01 22 10 30 J1328+2752 09 59 58 44.2 102.0 -3.5 0.0 -17 491 No stop 22 14 00 --- 10 03 29 44.7 102.8 -3.4 0.0 193 518 22 10 31 22 14 00 J1333+2725 10 03 29 43.7 102.2 -3.5 0.0 -17 518 No stop 22 15 30 --- 10 04 59 43.9 102.6 -3.5 0.0 73 529 22 14 01 22 16 10 J1328+2752 10 05 39 45.0 103.3 -3.4 0.0 23 529 22 16 10 22 19 00 --- 10 08 30 45.4 104.0 -3.4 0.0 170 551 22 16 11 Schedule for WSTRBORK (Code Wb ) Page 4 Dual AGN J1328+2752 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 ---------------------------------------------------------------------------------------- --- Fri 12 Mar 2021 Day 71 --- 22 19 30 J1333+2725 10 09 00 44.5 103.5 -3.4 0.0 13 551 22 19 30 22 21 00 --- 10 10 30 44.7 103.9 -3.4 0.0 90 563 22 19 31 22 21 00 J1328+2752 10 10 30 45.7 104.5 -3.3 0.0 -17 563 No stop 22 24 30 --- 10 14 01 46.2 105.3 -3.3 0.0 193 590 22 21 01 22 24 30 J1333+2725 10 14 01 45.3 104.7 -3.3 0.0 -17 590 No stop 22 26 00 --- 10 15 31 45.5 105.1 -3.3 0.0 73 602 22 24 31 22 26 40 J1328+2752 10 16 11 46.5 105.8 -3.2 0.0 23 602 22 26 40 22 29 30 --- 10 19 02 46.9 106.5 -3.2 0.0 170 623 22 26 41 22 30 00 J1333+2725 10 19 32 46.1 106.0 -3.2 0.0 13 623 22 30 00 22 31 30 --- 10 21 02 46.3 106.4 -3.2 0.0 90 635 22 30 01 22 31 30 J1328+2752 10 21 02 47.2 107.0 -3.1 0.0 -17 635 No stop 22 35 00 --- 10 24 33 47.7 107.9 -3.1 0.0 193 662 22 31 31 22 35 00 J1333+2725 10 24 33 46.8 107.3 -3.2 0.0 -17 662 No stop 22 36 30 --- 10 26 03 47.0 107.6 -3.1 0.0 73 674 22 35 01 22 37 10 J1328+2752 10 26 43 48.1 108.4 -3.1 0.0 23 674 22 37 10 22 40 00 --- 10 29 33 48.5 109.2 -3.0 0.0 170 696 22 37 11 22 40 30 J1333+2725 10 30 03 47.6 108.6 -3.1 0.0 13 696 22 40 30 22 42 00 --- 10 31 34 47.8 109.0 -3.0 0.0 90 707 22 40 31 22 42 00 J1328+2752 10 31 34 48.7 109.7 -3.0 0.0 -17 707 No stop 22 45 30 --- 10 35 04 49.2 110.6 -2.9 0.0 193 734 22 42 01 22 45 30 J1333+2725 10 35 04 48.3 109.9 -3.0 0.0 -17 734 No stop 22 47 00 --- 10 36 34 48.5 110.3 -3.0 0.0 73 746 22 45 31 22 47 40 J1328+2752 10 37 15 49.5 111.2 -2.9 0.0 23 746 22 47 40 22 50 30 --- 10 40 05 49.9 111.9 -2.8 0.0 170 768 22 47 41 22 51 00 J1333+2725 10 40 35 49.1 111.3 -2.9 0.0 13 768 22 51 00 22 52 30 --- 10 42 05 49.3 111.7 -2.9 0.0 90 779 22 51 01 22 52 30 J1328+2752 10 42 05 50.2 112.4 -2.8 0.0 -17 779 No stop 22 56 00 --- 10 45 36 50.7 113.4 -2.7 0.0 193 806 22 52 31 22 56 00 J1333+2725 10 45 36 49.8 112.7 -2.8 0.0 -17 806 No stop 22 57 30 --- 10 47 06 50.0 113.1 -2.8 0.0 73 818 22 56 01 Schedule for WSTRBORK (Code Wb ) Page 5 Dual AGN J1328+2752 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 ---------------------------------------------------------------------------------------- --- Fri 12 Mar 2021 Day 71 --- 22 58 10 J1328+2752 10 47 46 51.0 114.0 -2.7 0.0 23 818 22 58 10 23 01 00 --- 10 50 37 51.4 114.8 -2.7 0.0 170 840 22 58 11 23 01 30 J1333+2725 10 51 07 50.5 114.2 -2.7 0.0 13 840 23 01 30 23 03 00 --- 10 52 37 50.7 114.6 -2.7 0.0 90 851 23 01 31 23 03 00 J1328+2752 10 52 37 51.7 115.3 -2.6 0.0 -17 851 No stop 23 06 30 --- 10 56 08 52.2 116.3 -2.6 0.0 193 879 23 03 01 23 06 30 J1333+2725 10 56 08 51.2 115.6 -2.6 0.0 -17 879 No stop 23 08 00 --- 10 57 38 51.4 116.0 -2.6 0.0 73 890 23 06 31 23 08 40 J1328+2752 10 58 18 52.4 117.0 -2.5 0.0 23 890 23 08 40 23 11 30 --- 11 01 09 52.8 117.8 -2.5 0.0 170 912 23 08 41 23 12 00 J1333+2725 11 01 39 52.0 117.1 -2.5 0.0 13 912 23 12 00 23 13 30 --- 11 03 09 52.2 117.6 -2.5 0.0 90 924 23 12 01 23 13 30 J1328+2752 11 03 09 53.1 118.4 -2.4 0.0 -17 924 No stop 23 17 00 --- 11 06 39 53.6 119.4 -2.4 0.0 193 951 23 13 31 23 17 00 J1333+2725 11 06 39 52.6 118.6 -2.5 0.0 -17 951 No stop 23 18 30 --- 11 08 10 52.8 119.0 -2.4 0.0 73 962 23 17 01 23 19 10 J1328+2752 11 08 50 53.8 120.1 -2.3 0.0 23 962 23 19 10 23 22 00 --- 11 11 40 54.2 120.9 -2.3 0.0 170 984 23 19 11 23 22 30 J1333+2725 11 12 10 53.3 120.2 -2.4 0.0 13 984 23 22 30 23 24 00 --- 11 13 41 53.5 120.7 -2.3 0.0 90 996 23 22 31 23 24 00 J1328+2752 11 13 41 54.5 121.6 -2.3 0.0 -17 996 No stop 23 27 30 --- 11 17 11 54.9 122.7 -2.2 0.0 193 1023 23 24 01 23 27 30 J1333+2725 11 17 11 54.0 121.8 -2.3 0.0 -17 1023 No stop 23 29 00 --- 11 18 41 54.2 122.2 -2.3 0.0 73 1034 23 27 31 23 29 40 J1328+2752 11 19 21 55.2 123.3 -2.2 0.0 23 1034 23 29 40 23 32 30 --- 11 22 12 55.5 124.3 -2.1 0.0 170 1056 23 29 41 23 33 00 J1333+2725 11 22 42 54.7 123.5 -2.2 0.0 13 1056 23 33 00 23 34 30 --- 11 24 12 54.9 124.0 -2.2 0.0 90 1068 23 33 01 23 34 30 J1328+2752 11 24 12 55.8 124.9 -2.1 0.0 -17 1068 No stop 23 38 00 --- 11 27 43 56.2 126.1 -2.0 0.0 193 1095 23 34 31 Schedule for WSTRBORK (Code Wb ) Page 6 Dual AGN J1328+2752 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 ---------------------------------------------------------------------------------------- --- Fri 12 Mar 2021 Day 71 --- 23 38 00 J1333+2725 11 27 43 55.3 125.1 -2.1 0.0 -17 1095 No stop 23 39 30 --- 11 29 13 55.5 125.6 -2.1 0.0 73 1107 23 38 01 23 40 10 J1328+2752 11 29 53 56.5 126.8 -2.0 0.0 23 1107 23 40 10 23 43 00 --- 11 32 44 56.8 127.7 -2.0 0.0 170 1128 23 40 11 23 43 30 J1333+2725 11 33 14 56.0 126.9 -2.0 0.0 13 1128 23 43 30 23 45 00 --- 11 34 44 56.2 127.4 -2.0 0.0 90 1140 23 43 31 23 45 00 J1328+2752 11 34 44 57.1 128.4 -1.9 0.0 -17 1140 No stop 23 48 30 --- 11 38 15 57.5 129.6 -1.9 0.0 193 1167 23 45 01 23 48 30 J1333+2725 11 38 15 56.6 128.6 -1.9 0.0 -17 1167 No stop 23 50 00 --- 11 39 45 56.8 129.1 -1.9 0.0 73 1179 23 48 31 23 50 40 J1328+2752 11 40 25 57.7 130.4 -1.8 0.0 23 1179 23 50 40 23 53 30 --- 11 43 15 58.1 131.4 -1.8 0.0 170 1201 23 50 41 23 54 00 J1333+2725 11 43 45 57.2 130.5 -1.8 0.0 13 1201 23 54 00 23 55 30 --- 11 45 16 57.4 131.0 -1.8 0.0 90 1212 23 54 01 23 55 30 J1327+2210 11 45 16 53.4 137.6 -1.7 0.0 -30 1212 No stop 23 59 59 --- 11 49 46 53.9 139.2 -1.6 0.0 239 1247 23 55 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess121.X2048 --- 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: 14 Station: WSTRBORK Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 8012.00 8012.00 8012.00 8012.00 8012.00 8012.00 8012.00 8012.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 1 Setup file default. Used with PCAL = off LO sum= 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 BBC fr= 371.49 371.49 371.49 371.49 435.49 435.49 435.49 435.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 1 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) * J1328+2752 13 26 27.936848 * 13 28 48.450000 13 29 48.376348 0.00 28 07 57.38064 * 27 52 27.81000 27 45 47.74249 0.00 From catalog imbedded in main SCHED input file. * J1333+2725 13 30 47.331469 * 13 33 07.490000 13 34 07.250310 0.00 27 40 40.74182 * 27 25 18.38200 27 18 41.22408 0.00 From catalog imbedded in main SCHED input file. * J1327+2210 13 24 37.118315 * 13 27 00.861000 13 28 02.080071 0.00 22 26 22.70157 * 22 10 50.16200 22 04 09.49526 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 J1328+2752 sess121.X2048 1 2 3 4 5 6 7 8 9 13 14 1.689 146.472 J1333+2725 sess121.X2048 1 2 3 4 5 6 7 8 9 13 14 0.833 67.971 J1327+2210 sess121.X2048 1 2 3 4 5 6 7 8 9 13 14 0.166 14.383 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) J1328+2752 142.6 J1333+2725 142.1 J1327+2210 146.1 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