COVER INFORMATION Station: ZELENCHK (Code Zc ) 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 ZELENCHK (Code Zc ) 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: 8319.49 8319.49 8319.49 8319.49 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 8511.49 8511.49 8511.49 8511.49 Next BBC frequencies: 239.49 239.49 239.49 239.49 303.49 303.49 303.49 303.49 367.49 367.49 367.49 367.49 431.49 431.49 431.49 431.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 21 00 00 J1327+2210 11 09 10 54.1 475.9 -2.3 -44.5 0 0 21 00 00 21 05 30 --- 11 14 41 55.0 477.4 -2.2 -43.7 330 85 21 00 01 21 05 30 J1333+2725 11 14 41 57.5 468.8 -2.3 -50.3 -31 85 No stop 21 07 30 --- 11 16 41 57.9 469.4 -2.3 -50.0 89 115 21 05 31 21 07 30 J1328+2752 11 16 41 58.9 469.9 -2.2 -50.1 -14 115 No stop 21 11 00 --- 11 20 12 59.5 470.9 -2.2 -49.7 196 169 21 07 31 21 11 00 J1333+2725 11 20 12 58.5 470.3 -2.2 -49.6 -14 169 No stop 21 12 30 --- 11 21 42 58.7 470.7 -2.2 -49.4 76 192 21 11 01 21 13 10 J1328+2752 11 22 22 59.9 471.5 -2.1 -49.4 26 192 21 13 10 21 16 00 --- 11 25 13 60.3 472.3 -2.1 -49.0 170 236 21 13 11 21 16 30 J1333+2725 11 25 43 59.4 471.9 -2.1 -48.9 16 236 21 16 30 21 18 00 --- 11 27 13 59.7 472.3 -2.1 -48.7 90 259 21 16 31 21 18 00 J1328+2752 11 27 13 60.7 472.9 -2.0 -48.7 -14 259 No stop 21 21 30 --- 11 30 44 61.3 474.0 -2.0 -48.2 196 313 21 18 01 21 21 30 J1333+2725 11 30 44 60.2 473.3 -2.1 -48.2 -14 313 No stop 21 23 00 --- 11 32 14 60.5 473.8 -2.0 -48.0 76 336 21 21 31 21 23 40 J1328+2752 11 32 54 61.6 474.6 -1.9 -47.9 26 336 21 23 40 21 26 30 --- 11 35 44 62.1 475.5 -1.9 -47.4 170 379 21 23 41 21 27 00 J1333+2725 11 36 14 61.2 475.0 -2.0 -47.4 16 379 21 27 00 21 28 30 --- 11 37 45 61.4 475.5 -1.9 -47.2 90 403 21 27 01 21 28 30 J1328+2752 11 37 45 62.4 476.2 -1.9 -47.1 -14 403 No stop 21 32 00 --- 11 41 15 63.0 477.3 -1.8 -46.4 196 456 21 28 31 21 32 00 J1333+2725 11 41 15 62.0 476.6 -1.9 -46.6 -14 456 No stop 21 33 30 --- 11 42 46 62.2 477.1 -1.9 -46.3 76 479 21 32 01 21 34 10 J1328+2752 11 43 26 63.3 478.1 -1.8 -46.0 26 479 21 34 10 21 37 00 --- 11 46 16 63.8 479.1 -1.7 -45.5 170 523 21 34 11 Schedule for ZELENCHK (Code Zc ) 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 37 30 J1333+2725 11 46 46 62.9 478.5 -1.8 -45.6 16 523 21 37 30 21 39 00 --- 11 48 16 63.1 479.0 -1.8 -45.3 90 546 21 37 31 21 39 00 J1328+2752 11 48 16 64.1 479.8 -1.7 -45.1 -14 546 No stop 21 42 30 --- 11 51 47 64.6 481.0 -1.6 -44.3 196 600 21 39 01 21 42 30 J1333+2725 11 51 47 63.6 480.2 -1.7 -44.6 -14 600 No stop 21 44 00 --- 11 53 17 63.9 480.7 -1.7 -44.3 76 623 21 42 31 21 44 40 J1328+2752 11 53 57 65.0 481.9 -1.6 -43.9 26 623 21 44 40 21 47 30 --- 11 56 48 65.4 482.9 -1.6 -43.2 170 667 21 44 41 21 48 00 J1333+2725 11 57 18 64.5 482.2 -1.6 -43.4 16 667 21 48 00 21 49 30 --- 11 58 48 64.7 482.8 -1.6 -43.1 90 690 21 48 01 21 49 30 J1328+2752 11 58 48 65.7 483.7 -1.5 -42.7 -14 690 No stop 21 53 00 --- 12 02 19 66.2 485.1 -1.5 -41.9 196 744 21 49 31 21 53 00 J1333+2725 12 02 19 65.3 484.1 -1.5 -42.3 -14 744 No stop 21 54 30 --- 12 03 49 65.5 484.7 -1.5 -41.9 76 767 21 53 01 21 55 10 J1328+2752 12 04 29 66.5 486.0 -1.4 -41.3 26 767 21 55 10 21 58 00 --- 12 07 20 67.0 487.2 -1.4 -40.5 170 810 21 55 11 21 58 30 J1333+2725 12 07 50 66.1 486.4 -1.4 -40.9 16 810 21 58 30 22 00 00 --- 12 09 20 66.3 487.0 -1.4 -40.5 90 833 21 58 31 22 00 00 J1328+2752 12 09 20 67.2 488.1 -1.3 -39.9 -15 833 No stop 22 03 30 --- 12 12 50 67.7 489.7 -1.3 -38.9 195 887 22 00 01 22 03 30 J1333+2725 12 12 50 66.8 488.5 -1.4 -39.5 -14 887 No stop 22 05 00 --- 12 14 21 67.0 489.2 -1.3 -39.1 76 910 22 03 31 22 05 40 J1328+2752 12 15 01 68.0 490.7 -1.2 -38.2 25 910 22 05 40 22 08 30 --- 12 17 51 68.4 492.0 -1.2 -37.3 170 954 22 05 41 22 09 00 J1333+2725 12 18 21 67.5 491.0 -1.3 -37.8 15 954 22 09 00 22 10 30 --- 12 19 52 67.8 491.7 -1.2 -37.4 90 977 22 09 01 22 10 30 J1328+2752 12 19 52 68.7 493.0 -1.2 -36.6 -16 977 No stop 22 14 00 --- 12 23 22 69.1 494.7 -1.1 -35.4 194 1031 22 10 31 22 14 00 J1333+2725 12 23 22 68.2 493.3 -1.2 -36.2 -15 1031 No stop 22 15 30 --- 12 24 52 68.4 494.0 -1.2 -35.7 75 1054 22 14 01 Schedule for ZELENCHK (Code Zc ) 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 16 10 J1328+2752 12 25 33 69.4 495.8 -1.1 -34.6 24 1054 22 16 10 22 19 00 --- 12 28 23 69.8 497.3 -1.0 -33.6 170 1097 22 16 11 22 19 30 J1333+2725 12 28 53 68.9 496.1 -1.1 -34.3 14 1097 22 19 30 22 21 00 --- 12 30 23 69.1 496.8 -1.1 -33.8 90 1121 22 19 31 22 21 00 J1328+2752 12 30 23 70.0 498.4 -1.0 -32.8 -17 1121 No stop 22 24 30 --- 12 33 54 70.4 500.4 -0.9 -31.4 193 1174 22 21 01 22 24 30 J1333+2725 12 33 54 69.5 498.7 -1.0 -32.4 -16 1174 No stop 22 26 00 --- 12 35 24 69.7 499.5 -1.0 -31.9 74 1197 22 24 31 22 26 40 J1328+2752 12 36 04 70.7 501.6 -0.9 -30.5 23 1197 22 26 40 22 29 30 --- 12 38 55 71.0 503.3 -0.8 -29.2 170 1241 22 26 41 22 30 00 J1333+2725 12 39 25 70.2 501.7 -0.9 -30.2 13 1241 22 30 00 22 31 30 --- 12 40 55 70.3 502.6 -0.9 -29.6 90 1264 22 30 01 22 31 30 J1328+2752 12 40 55 71.2 504.5 -0.8 -28.3 -18 1264 No stop 22 35 00 --- 12 44 26 71.6 506.6 -0.8 -26.7 192 1318 22 31 31 22 35 00 J1333+2725 12 44 26 70.7 504.6 -0.8 -28.1 -17 1318 No stop 22 36 30 --- 12 45 56 70.9 505.5 -0.8 -27.4 73 1341 22 35 01 22 37 10 J1328+2752 12 46 36 71.8 508.0 -0.7 -25.6 22 1341 22 37 10 22 40 00 --- 12 49 26 72.0 509.8 -0.7 -24.2 170 1385 22 37 11 22 40 30 J1333+2725 12 49 57 71.3 508.0 -0.7 -25.5 12 1385 22 40 30 22 42 00 --- 12 51 27 71.4 508.9 -0.7 -24.8 90 1408 22 40 31 22 42 00 J1328+2752 12 51 27 72.2 511.1 -0.6 -23.2 -19 1408 No stop 22 45 30 --- 12 54 57 72.5 513.5 -0.6 -21.3 191 1462 22 42 01 22 45 30 J1333+2725 12 54 57 71.7 511.2 -0.7 -23.1 -18 1462 No stop 22 47 00 --- 12 56 28 71.9 512.2 -0.6 -22.3 72 1485 22 45 31 22 47 40 J1328+2752 12 57 08 72.7 515.0 -0.5 -20.2 21 1485 22 47 40 22 50 30 --- 12 59 58 72.9 517.0 -0.5 -18.6 170 1528 22 47 41 22 51 00 J1333+2725 13 00 28 72.2 514.9 -0.6 -20.2 11 1528 22 51 00 22 52 30 --- 13 01 58 72.3 515.9 -0.5 -19.4 90 1551 22 51 01 22 52 30 J1328+2752 13 01 58 73.0 518.5 -0.5 -17.4 -20 1551 No stop 22 56 00 --- 13 05 29 73.2 521.0 -0.4 -15.4 190 1605 22 52 31 Schedule for ZELENCHK (Code Zc ) 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 56 00 J1333+2725 13 05 29 72.5 518.3 -0.5 -17.5 -19 1605 No stop 22 57 30 --- 13 06 59 72.6 519.4 -0.5 -16.6 71 1628 22 56 01 22 58 10 J1328+2752 13 07 39 73.4 522.6 -0.4 -14.1 20 1628 22 58 10 23 01 00 --- 13 10 30 73.5 524.8 -0.3 -12.4 170 1672 22 58 11 23 01 30 J1333+2725 13 11 00 72.9 522.3 -0.4 -14.3 10 1672 23 01 30 23 03 00 --- 13 12 30 73.0 523.4 -0.4 -13.4 90 1695 23 01 31 23 03 00 J1328+2752 13 12 30 73.6 526.3 -0.3 -11.1 -21 1695 No stop 23 06 30 --- 13 16 01 73.7 529.0 -0.2 -8.9 189 1749 23 03 01 23 06 30 J1333+2725 13 16 01 73.1 526.0 -0.3 -11.3 -20 1749 No stop 23 08 00 --- 13 17 31 73.2 527.2 -0.3 -10.4 70 1772 23 06 31 23 08 40 J1328+2752 13 18 11 73.8 530.7 -0.2 -7.5 19 1772 23 08 40 23 11 30 --- 13 21 02 73.9 533.0 -0.1 -5.7 170 1815 23 08 41 23 12 00 J1333+2725 13 21 32 73.3 530.2 -0.2 -7.9 10 1815 23 12 00 23 13 30 --- 13 23 02 73.4 531.4 -0.2 -7.0 90 1838 23 12 01 23 13 30 J1328+2752 13 23 02 73.9 534.6 -0.1 -4.4 -22 1838 No stop 23 17 00 --- 13 26 33 74.0 537.4 -0.1 -2.1 188 1892 23 13 31 23 17 00 J1333+2725 13 26 33 73.5 534.1 -0.1 -4.8 -21 1892 No stop 23 18 30 --- 13 28 03 73.5 535.3 -0.1 -3.9 69 1915 23 17 01 23 19 10 J1328+2752 13 28 43 74.0 539.1 -0.0 -0.7 18 1915 23 19 10 23 22 00 --- 13 31 33 74.0 541.4 0.0 1.1 170 1959 23 19 11 23 22 30 J1333+2725 13 32 03 73.5 538.4 -0.0 -1.3 9 1959 23 22 30 23 24 00 --- 13 33 34 73.5 539.6 -0.0 -0.4 90 1982 23 22 31 23 24 00 J1328+2752 13 33 34 74.0 543.0 0.1 2.5 -22 1982 No stop 23 27 30 --- 13 37 04 73.9 545.8 0.1 4.7 188 2036 23 24 01 23 27 30 J1333+2725 13 37 04 73.5 542.3 0.0 1.9 -21 2036 No stop 23 29 00 --- 13 38 34 73.5 543.5 0.1 2.8 69 2059 23 27 31 23 29 40 J1328+2752 13 39 15 73.9 547.5 0.2 6.1 18 2059 23 29 40 23 32 30 --- 13 42 05 73.8 549.8 0.2 8.0 170 2103 23 29 41 23 33 00 J1333+2725 13 42 35 73.4 546.6 0.1 5.4 9 2103 23 33 00 23 34 30 --- 13 44 05 73.4 547.8 0.2 6.3 90 2126 23 33 01 Schedule for ZELENCHK (Code Zc ) 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 34 30 J1328+2752 13 44 05 73.7 551.3 0.2 9.2 -22 2126 No stop 23 38 00 --- 13 47 36 73.6 554.1 0.3 11.4 188 2179 23 34 31 23 38 00 J1333+2725 13 47 36 73.3 550.5 0.2 8.5 -21 2179 No stop 23 39 30 --- 13 49 06 73.2 551.6 0.2 9.4 69 2203 23 38 01 23 40 10 J1328+2752 13 49 46 73.5 555.7 0.3 12.8 18 2203 23 40 10 23 43 00 --- 13 52 37 73.3 557.8 0.4 14.5 170 2246 23 40 11 23 43 30 J1333+2725 13 53 07 73.1 554.6 0.3 11.9 9 2246 23 43 30 23 45 00 --- 13 54 37 73.0 555.8 0.3 12.8 90 2269 23 43 31 23 45 00 J1328+2752 13 54 37 73.2 559.3 0.4 15.7 -22 2269 No stop 23 48 30 --- 13 58 08 73.0 561.9 0.5 17.7 188 2323 23 45 01 23 48 30 J1333+2725 13 58 08 72.8 558.3 0.4 14.8 -21 2323 No stop 23 50 00 --- 13 59 38 72.7 559.4 0.4 15.7 69 2346 23 48 31 23 50 40 J1328+2752 14 00 18 72.8 563.4 0.5 18.9 18 2346 23 50 40 23 53 30 --- 14 03 09 72.6 565.4 0.6 20.5 170 2390 23 50 41 23 54 00 J1333+2725 14 03 39 72.5 562.3 0.5 17.9 9 2390 23 54 00 23 55 30 --- 14 05 09 72.4 563.3 0.5 18.8 90 2413 23 54 01 23 55 30 J1327+2210 14 05 09 67.0 562.4 0.6 17.3 -26 2413 No stop 23 59 59 --- 14 09 40 66.6 565.0 0.7 19.2 243 2482 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 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: kvzr_x Added by Des Small, 24 February 2012 Setup group: 2 Station: ZELENCHK Total bit rate: 2048 Format: MARK5B Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A B A B A B A B A B A B A B A B The following frequency sets based on these setups were used. Frequency Set: 9 Setup file default. Used with PCAL = off LO sum= 8319.49 8319.49 8319.49 8319.49 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 8511.49 8511.49 8511.49 8511.49 BBC fr= 239.49 239.49 239.49 239.49 303.49 303.49 303.49 303.49 367.49 367.49 367.49 367.49 431.49 431.49 431.49 431.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 9 10 11 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 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