COVER INFORMATION Station: ZELENCHK (Code Zc ) Experiment: A dual AGN candidate with 0.13 arcsec separation Exp. Code: EG109A Schedule Version: 2.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Krisztina Gabanyi Address: MTA-ELTE Extragalactic Astrophysics Research Group ELTE TTK, Pazmany Peter setany 1/a H-1117 Budapest Hungary Phone: +36 1 3919322 EMAIL: krisztina.g@gmail.com Fax: Phone during observation: Observing mode: 6 cm 2 Gb/s Notes: Schedule for ZELENCHK (Code Zc ) Page 2 A dual AGN candidate with 0.13 arcsec separation 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 ---------------------------------------------------------------------------------------- --- Wed 26 Feb 2020 Day 57 --- Next scan frequencies: 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 330.49 330.49 330.49 330.49 394.49 394.49 394.49 394.49 458.49 458.49 458.49 458.49 522.49 522.49 522.49 522.49 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 19 00 00 J0956+2515 08 10 39 61.3 481.7 -1.8 -42.7 0 0 19 00 00 19 07 00 =0953+254 08 17 40 62.4 484.2 -1.7 -41.3 420 108 19 00 01 19 08 25 J1007+1356 08 19 06 52.0 493.5 -1.8 -32.7 49 108 19 08 25 19 09 35 =1004+141 08 20 16 52.1 493.8 -1.8 -32.4 70 126 19 08 26 19 09 35 J1010+1413 08 20 16 52.0 492.7 -1.9 -33.2 -14 126 No stop 19 13 05 --- 08 23 46 52.5 493.9 -1.8 -32.5 196 179 19 09 36 19 13 05 J1007+1356 08 23 46 52.6 495.0 -1.8 -31.7 -15 179 No stop 19 14 35 =1004+141 08 25 17 52.8 495.5 -1.7 -31.4 75 203 19 13 06 19 14 35 J1010+1413 08 25 17 52.7 494.4 -1.8 -32.1 -14 203 No stop 19 18 05 --- 08 28 47 53.1 495.6 -1.7 -31.4 196 256 19 14 36 19 18 50 J1007+1356 08 29 32 53.3 497.0 -1.7 -30.5 30 256 19 18 50 19 20 00 =1004+141 08 30 43 53.4 497.4 -1.6 -30.2 70 274 19 18 51 19 20 00 J1010+1413 08 30 43 53.4 496.3 -1.7 -31.0 -14 274 No stop 19 23 30 --- 08 34 13 53.8 497.5 -1.6 -30.2 196 328 19 20 01 19 23 30 J1007+1356 08 34 13 53.9 498.7 -1.6 -29.4 -15 328 No stop 19 25 00 =1004+141 08 35 43 54.0 499.2 -1.6 -29.1 75 351 19 23 31 19 25 00 J1010+1413 08 35 43 54.0 498.0 -1.6 -29.9 -15 351 No stop 19 28 30 --- 08 39 14 54.4 499.3 -1.5 -29.0 195 405 19 25 01 19 29 15 J1007+1356 08 39 59 54.5 500.8 -1.5 -28.0 30 405 19 29 15 19 30 25 =1004+141 08 41 09 54.7 501.2 -1.5 -27.8 70 423 19 29 16 19 30 25 J1010+1413 08 41 09 54.6 500.0 -1.5 -28.6 -15 423 No stop 19 33 55 --- 08 44 40 55.0 501.3 -1.4 -27.7 195 477 19 30 26 19 33 55 J1007+1356 08 44 40 55.1 502.5 -1.4 -26.9 -15 477 No stop 19 35 25 =1004+141 08 46 10 55.2 503.1 -1.4 -26.5 75 500 19 33 56 19 35 25 J1010+1413 08 46 10 55.2 501.9 -1.4 -27.4 -15 500 No stop 19 38 55 --- 08 49 41 55.6 503.2 -1.4 -26.5 195 554 19 35 26 Schedule for ZELENCHK (Code Zc ) Page 3 A dual AGN candidate with 0.13 arcsec separation 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 ---------------------------------------------------------------------------------------- --- Wed 26 Feb 2020 Day 57 --- 19 39 40 J1007+1356 08 50 26 55.7 504.7 -1.3 -25.4 30 554 19 39 40 19 40 50 =1004+141 08 51 36 55.8 505.2 -1.3 -25.1 70 572 19 39 41 19 40 50 J1010+1413 08 51 36 55.8 503.9 -1.3 -26.0 -15 572 No stop 19 44 20 --- 08 55 07 56.1 505.3 -1.3 -25.1 195 626 19 40 51 19 44 20 J1007+1356 08 55 07 56.2 506.6 -1.2 -24.2 -15 626 No stop 19 45 50 =1004+141 08 56 37 56.3 507.2 -1.2 -23.8 75 649 19 44 21 19 45 50 J1010+1413 08 56 37 56.3 505.9 -1.2 -24.7 -15 649 No stop 19 49 20 --- 09 00 07 56.6 507.3 -1.2 -23.7 195 703 19 45 51 19 50 05 J1007+1356 09 00 52 56.7 508.9 -1.1 -22.6 30 703 19 50 05 19 51 15 =1004+141 09 02 03 56.8 509.4 -1.1 -22.3 70 721 19 50 06 19 51 15 J1010+1413 09 02 03 56.8 508.1 -1.2 -23.2 -15 721 No stop 19 54 45 --- 09 05 33 57.2 509.5 -1.1 -22.2 195 774 19 51 16 19 54 45 J1007+1356 09 05 33 57.1 510.8 -1.1 -21.2 -15 774 No stop 19 56 15 =1004+141 09 07 03 57.3 511.5 -1.0 -20.8 75 797 19 54 46 19 56 15 J1010+1413 09 07 03 57.3 510.1 -1.1 -21.7 -15 797 No stop 19 59 45 --- 09 10 34 57.6 511.6 -1.0 -20.7 195 851 19 56 16 20 00 30 J1007+1356 09 11 19 57.6 513.3 -1.0 -19.5 29 851 20 00 30 20 01 40 =1004+141 09 12 29 57.7 513.8 -0.9 -19.2 70 869 20 00 31 20 01 40 J1010+1413 09 12 29 57.8 512.4 -1.0 -20.1 -15 869 No stop 20 05 10 --- 09 16 00 58.0 513.9 -0.9 -19.1 195 923 20 01 41 20 05 10 J1007+1356 09 16 00 58.0 515.3 -0.9 -18.1 -16 923 No stop 20 06 40 =1004+141 09 17 30 58.1 515.9 -0.9 -17.6 74 946 20 05 11 20 06 40 J1010+1413 09 17 30 58.2 514.6 -0.9 -18.6 -15 946 No stop 20 10 10 --- 09 21 01 58.4 516.1 -0.8 -17.5 195 1000 20 06 41 20 10 55 J1007+1356 09 21 46 58.4 517.8 -0.8 -16.3 29 1000 20 10 55 20 12 05 =1004+141 09 22 56 58.5 518.3 -0.8 -15.9 70 1018 20 10 56 20 12 05 J1010+1413 09 22 56 58.6 517.0 -0.8 -16.9 -15 1018 No stop 20 15 35 --- 09 26 27 58.8 518.6 -0.8 -15.8 195 1072 20 12 06 20 15 35 J1007+1356 09 26 27 58.7 519.9 -0.7 -14.8 -16 1072 No stop 20 17 05 =1004+141 09 27 57 58.8 520.6 -0.7 -14.3 74 1095 20 15 36 Schedule for ZELENCHK (Code Zc ) Page 4 A dual AGN candidate with 0.13 arcsec separation 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 ---------------------------------------------------------------------------------------- --- Wed 26 Feb 2020 Day 57 --- 20 17 05 J1010+1413 09 27 57 58.9 519.2 -0.7 -15.3 -15 1095 No stop 20 20 35 --- 09 31 27 59.1 520.8 -0.7 -14.1 195 1149 20 17 06 20 21 20 J1007+1356 09 32 13 59.0 522.5 -0.6 -12.9 29 1149 20 21 20 20 22 30 =1004+141 09 33 23 59.1 523.1 -0.6 -12.5 70 1167 20 21 21 20 22 30 J1010+1413 09 33 23 59.2 521.7 -0.6 -13.5 -15 1167 No stop 20 26 00 --- 09 36 53 59.4 523.3 -0.6 -12.3 195 1221 20 22 31 20 26 00 J1007+1356 09 36 53 59.3 524.7 -0.5 -11.3 -16 1221 No stop 20 27 30 =1004+141 09 38 24 59.4 525.4 -0.5 -10.8 74 1244 20 26 01 20 27 30 J1010+1413 09 38 24 59.5 524.0 -0.6 -11.8 -15 1244 No stop 20 31 00 --- 09 41 54 59.7 525.7 -0.5 -10.6 195 1297 20 27 31 20 31 45 J1007+1356 09 42 39 59.5 527.4 -0.4 -9.3 29 1297 20 31 45 20 32 55 =1004+141 09 43 50 59.6 528.0 -0.4 -8.9 70 1315 20 31 46 20 32 55 J1010+1413 09 43 50 59.7 526.6 -0.5 -9.9 -15 1315 No stop 20 36 25 --- 09 47 20 59.9 528.3 -0.4 -8.7 195 1369 20 32 56 20 36 25 J1007+1356 09 47 20 59.7 529.6 -0.4 -7.7 -16 1369 No stop 20 37 55 =1004+141 09 48 50 59.8 530.4 -0.3 -7.2 74 1392 20 36 26 20 37 55 J1010+1413 09 48 50 59.9 529.0 -0.4 -8.2 -15 1392 No stop 20 41 25 --- 09 52 21 60.0 530.7 -0.3 -6.9 195 1446 20 37 56 20 42 10 J1007+1356 09 53 06 59.9 532.4 -0.3 -5.6 29 1446 20 42 10 20 43 20 =1004+141 09 54 16 59.9 533.0 -0.2 -5.2 70 1464 20 42 11 20 43 20 J1010+1413 09 54 16 60.1 531.6 -0.3 -6.2 -15 1464 No stop 20 46 50 --- 09 57 47 60.2 533.3 -0.2 -5.0 195 1518 20 43 21 20 46 50 J1007+1356 09 57 47 60.0 534.7 -0.2 -4.0 -16 1518 No stop 20 48 20 =1004+141 09 59 17 60.0 535.4 -0.2 -3.4 74 1541 20 46 51 20 48 20 J1010+1413 09 59 17 60.2 534.0 -0.2 -4.4 -15 1541 No stop 20 51 50 --- 10 02 48 60.3 535.8 -0.1 -3.2 195 1595 20 48 21 20 51 50 J1007+1356 10 02 48 60.0 537.1 -0.1 -2.2 -16 1595 No stop 20 53 20 =1004+141 10 04 18 60.0 537.8 -0.1 -1.6 74 1618 20 51 51 20 54 00 J0956+2515 10 04 58 71.3 544.9 0.1 3.9 2 1618 20 54 00 21 00 00 =0953+254 10 10 59 71.2 549.2 0.2 7.3 360 1710 20 54 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess120.C2048 Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq.dat: kvzr_c 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= 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 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: 10 Setup file default. Used with PCAL = off LO sum= 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 330.49 330.49 330.49 330.49 394.49 394.49 394.49 394.49 458.49 458.49 458.49 458.49 522.49 522.49 522.49 522.49 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: 10 11 12 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) * J1010+1413 10 07 41.257077 * 10 10 22.957500 10 11 28.322132 0.00 14 27 47.72580 * 14 13 00.87500 14 07 00.31895 0.00 From catalog imbedded in main SCHED input file. 0953+254 09 53 59.738485 * 09 56 49.875379 09 57 58.619738 0.11 * J0956+2515 25 29 33.58574 * 25 15 16.04984 25 09 27.93847 0.10 /home/guest/rmc/SCHED/sched11.5/catalogs/rfc_2018a_cat.key rfc_2018a Petrov and Kovalev, in preparation 29729 observations 1004+141 10 04 59.783934 * 10 07 41.498088 10 08 46.866828 0.10 * J1007+1356 14 11 10.91501 * 13 56 29.60078 13 50 31.24655 0.10 /home/guest/rmc/SCHED/sched11.5/catalogs/rfc_2018a_cat.key rfc_2018a Petrov and Kovalev, in preparation 4729 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 J1010+1413 sess120.C2048 1 2 3 4 5 6 7 8 9 10 14 15 1.167 182.230 J0956+2515 sess120.C2048 1 2 3 4 5 6 7 8 9 10 14 15 0.217 36.393 J1007+1356 sess120.C2048 1 2 3 4 5 6 7 8 9 10 14 15 0.469 70.622 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) J1010+1413 171.6 J0956+2515 161.0 J1007+1356 171.3 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