COVER INFORMATION Station: IRBENE (Code Ir ) 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 IRBENE (Code Ir ) 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: 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 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 06 51 49 43.9-245.7 -3.1 -32.7 0 0 19 00 00 19 07 00 =0953+254 06 58 50 44.7-243.8 -3.0 -32.1 420 108 19 00 01 19 08 25 J1007+1356 07 00 15 33.8-238.9 -3.1 -28.2 76 108 19 08 25 19 09 35 =1004+141 07 01 25 33.9-238.6 -3.1 -28.1 70 126 19 08 26 19 09 35 J1010+1413 07 01 25 33.9-239.5 -3.2 -28.5 -3 126 No stop 19 13 05 --- 07 04 56 34.3-238.6 -3.1 -28.2 207 180 19 09 36 19 13 05 J1007+1356 07 04 56 34.3-237.7 -3.1 -27.8 -3 180 No stop 19 14 35 =1004+141 07 06 26 34.5-237.3 -3.0 -27.7 87 204 19 13 06 19 14 35 J1010+1413 07 06 26 34.4-238.2 -3.1 -28.0 -3 204 No stop 19 18 05 --- 07 09 57 34.8-237.3 -3.0 -27.7 207 258 19 14 36 19 18 50 J1007+1356 07 10 42 35.0-236.2 -3.0 -27.3 42 258 19 18 50 19 20 00 =1004+141 07 11 52 35.1-235.9 -2.9 -27.2 70 276 19 18 51 19 20 00 J1010+1413 07 11 52 35.1-236.7 -3.0 -27.6 -3 276 No stop 19 23 30 --- 07 15 23 35.4-235.8 -2.9 -27.2 207 330 19 20 01 19 23 30 J1007+1356 07 15 23 35.5-235.0 -2.9 -26.9 -3 330 No stop 19 25 00 =1004+141 07 16 53 35.7-234.6 -2.9 -26.8 87 353 19 23 31 19 25 00 J1010+1413 07 16 53 35.6-235.4 -2.9 -27.1 -3 353 No stop 19 28 30 --- 07 20 23 36.0-234.5 -2.9 -26.8 207 407 19 25 01 19 29 15 J1007+1356 07 21 09 36.1-233.4 -2.8 -26.3 42 407 19 29 15 19 30 25 =1004+141 07 22 19 36.3-233.1 -2.8 -26.2 70 425 19 29 16 19 30 25 J1010+1413 07 22 19 36.2-234.0 -2.8 -26.6 -3 425 No stop 19 33 55 --- 07 25 49 36.6-233.0 -2.8 -26.2 207 479 19 30 26 19 33 55 J1007+1356 07 25 49 36.6-232.1 -2.7 -25.9 -3 479 No stop 19 35 25 =1004+141 07 27 20 36.8-231.7 -2.7 -25.7 87 502 19 33 56 19 35 25 J1010+1413 07 27 20 36.7-232.6 -2.7 -26.1 -3 502 No stop 19 38 55 --- 07 30 50 37.1-231.7 -2.7 -25.7 207 556 19 35 26 Schedule for IRBENE (Code Ir ) 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 07 31 35 37.2-230.6 -2.6 -25.3 42 556 19 39 40 19 40 50 =1004+141 07 32 45 37.4-230.2 -2.6 -25.1 70 575 19 39 41 19 40 50 J1010+1413 07 32 45 37.3-231.1 -2.6 -25.5 -3 575 No stop 19 44 20 --- 07 36 16 37.7-230.2 -2.6 -25.1 207 629 19 40 51 19 44 20 J1007+1356 07 36 16 37.7-229.3 -2.5 -24.8 -3 629 No stop 19 45 50 =1004+141 07 37 46 37.9-228.9 -2.5 -24.6 87 652 19 44 21 19 45 50 J1010+1413 07 37 46 37.8-229.7 -2.6 -25.0 -3 652 No stop 19 49 20 --- 07 41 17 38.2-228.8 -2.5 -24.6 207 706 19 45 51 19 50 05 J1007+1356 07 42 02 38.3-227.7 -2.4 -24.1 42 706 19 50 05 19 51 15 =1004+141 07 43 12 38.4-227.3 -2.4 -24.0 70 724 19 50 06 19 51 15 J1010+1413 07 43 12 38.4-228.2 -2.5 -24.4 -3 724 No stop 19 54 45 --- 07 46 43 38.7-227.2 -2.4 -24.0 207 778 19 51 16 19 54 45 J1007+1356 07 46 43 38.7-226.3 -2.4 -23.6 -3 778 No stop 19 56 15 =1004+141 07 48 13 38.9-225.9 -2.3 -23.4 87 801 19 54 46 19 56 15 J1010+1413 07 48 13 38.9-226.8 -2.4 -23.8 -3 801 No stop 19 59 45 --- 07 51 44 39.2-225.8 -2.3 -23.4 207 855 19 56 16 20 00 30 J1007+1356 07 52 29 39.3-224.7 -2.3 -22.9 42 855 20 00 30 20 01 40 =1004+141 07 53 39 39.4-224.3 -2.3 -22.7 70 873 20 00 31 20 01 40 J1010+1413 07 53 39 39.4-225.2 -2.3 -23.1 -3 873 No stop 20 05 10 --- 07 57 09 39.7-224.2 -2.2 -22.7 207 927 20 01 41 20 05 10 J1007+1356 07 57 09 39.7-223.3 -2.2 -22.3 -3 927 No stop 20 06 40 =1004+141 07 58 40 39.9-222.9 -2.2 -22.1 87 951 20 05 11 20 06 40 J1010+1413 07 58 40 39.9-223.8 -2.2 -22.5 -3 951 No stop 20 10 10 --- 08 02 10 40.2-222.8 -2.2 -22.1 207 1005 20 06 41 20 10 55 J1007+1356 08 02 55 40.3-221.6 -2.1 -21.5 42 1005 20 10 55 20 12 05 =1004+141 08 04 06 40.4-221.3 -2.1 -21.4 70 1023 20 10 56 20 12 05 J1010+1413 08 04 06 40.4-222.2 -2.1 -21.8 -3 1023 No stop 20 15 35 --- 08 07 36 40.7-221.2 -2.1 -21.4 207 1077 20 12 06 20 15 35 J1007+1356 08 07 36 40.7-220.2 -2.0 -20.9 -3 1077 No stop 20 17 05 =1004+141 08 09 06 40.8-219.8 -2.0 -20.7 87 1100 20 15 36 Schedule for IRBENE (Code Ir ) 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 08 09 06 40.8-220.7 -2.0 -21.1 -3 1100 No stop 20 20 35 --- 08 12 37 41.1-219.7 -2.0 -20.7 207 1154 20 17 06 20 21 20 J1007+1356 08 13 22 41.2-218.5 -1.9 -20.1 42 1154 20 21 20 20 22 30 =1004+141 08 14 32 41.3-218.1 -1.9 -20.0 70 1172 20 21 21 20 22 30 J1010+1413 08 14 32 41.3-219.1 -1.9 -20.4 -3 1172 No stop 20 26 00 --- 08 18 03 41.6-218.0 -1.9 -19.9 207 1226 20 22 31 20 26 00 J1007+1356 08 18 03 41.5-217.1 -1.8 -19.5 -3 1226 No stop 20 27 30 =1004+141 08 19 33 41.7-216.6 -1.8 -19.2 87 1250 20 26 01 20 27 30 J1010+1413 08 19 33 41.7-217.5 -1.9 -19.7 -3 1250 No stop 20 31 00 --- 08 23 04 42.0-216.5 -1.8 -19.2 207 1304 20 27 31 20 31 45 J1007+1356 08 23 49 42.0-215.3 -1.7 -18.6 42 1304 20 31 45 20 32 55 =1004+141 08 24 59 42.1-214.9 -1.7 -18.4 70 1322 20 31 46 20 32 55 J1010+1413 08 24 59 42.1-215.9 -1.8 -18.9 -3 1322 No stop 20 36 25 --- 08 28 30 42.4-214.8 -1.7 -18.4 207 1376 20 32 56 20 36 25 J1007+1356 08 28 30 42.4-213.8 -1.7 -17.9 -3 1376 No stop 20 37 55 =1004+141 08 30 00 42.5-213.4 -1.6 -17.7 87 1399 20 36 26 20 37 55 J1010+1413 08 30 00 42.5-214.3 -1.7 -18.2 -3 1399 No stop 20 41 25 --- 08 33 30 42.8-213.2 -1.6 -17.6 207 1453 20 37 56 20 42 10 J1007+1356 08 34 16 42.8-212.0 -1.6 -17.0 42 1453 20 42 10 20 43 20 =1004+141 08 35 26 42.9-211.7 -1.6 -16.9 70 1471 20 42 11 20 43 20 J1010+1413 08 35 26 42.9-212.6 -1.6 -17.3 -3 1471 No stop 20 46 50 --- 08 38 56 43.2-211.5 -1.5 -16.8 207 1525 20 43 21 20 46 50 J1007+1356 08 38 56 43.1-210.5 -1.5 -16.3 -3 1525 No stop 20 48 20 =1004+141 08 40 27 43.2-210.1 -1.5 -16.1 87 1548 20 46 51 20 48 20 J1010+1413 08 40 27 43.3-211.0 -1.5 -16.6 -3 1548 No stop 20 51 50 --- 08 43 57 43.5-209.9 -1.5 -16.0 207 1603 20 48 21 20 51 50 J1007+1356 08 43 57 43.4-208.9 -1.4 -15.5 -3 1603 No stop 20 53 20 =1004+141 08 45 27 43.5-208.4 -1.4 -15.3 87 1626 20 51 51 20 54 00 J0956+2515 08 46 07 55.2-209.2 -1.2 -16.8 31 1626 20 54 00 21 00 00 =0953+254 08 52 08 55.5-206.9 -1.1 -15.6 360 1718 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 --- 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: 10 Station: IRBENE Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 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 = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 4 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= 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 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: 4 13 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 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