COVER INFORMATION Station: KUNMING (Code Km ) Experiment: A definite answer to the nature of the water gigamaser in TXS2226-184 Exp. Code: ET045B Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: A. Tarchi Address: INAF - Osservatorio Astronomico di Cagliari Via della Scienza 5 I-09047 Selargius (Cagliari) Italy Phone: +39 07071180235 EMAIL: andrea.tarchi@inaf.it Fax: Phone during observation: +39 07071180235 Observing mode: Observations of TXS2226-184 at 5 GHz (2048 Mb/s) Notes: phase-cal OFF EVN+MERLIN Schedule for KUNMING (Code Km ) Page 2 A definite answer to the nature of the water gigamaser in TXS2226-184 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 ---------------------------------------------------------------------------------------- --- Sun 7 Mar 2021 Day 66 --- 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: 630.49 630.49 630.49 630.49 694.49 694.49 694.49 694.49 758.49 758.49 758.49 758.49 822.49 822.49 822.49 822.49 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 07 44 00 J2232-1659 01 36 12 28.9 231.4 3.0 47.8 0 0 07 44 00 07 46 00 =2229-172 01 38 12 28.5 231.8 3.1 48.1 120 31 07 44 01 07 46 00 TXS 01 38 12 27.2 231.4 3.1 48.1 -6 31 No stop 07 49 00 --- 01 41 13 26.6 231.9 3.2 48.6 174 77 07 46 01 07 49 30 J2232-1659 01 41 43 27.9 232.4 3.1 48.6 24 77 07 49 30 07 51 30 =2229-172 01 43 43 27.5 232.8 3.2 48.9 120 108 07 49 31 07 51 30 TXS 01 43 43 26.2 232.3 3.2 49.0 -6 108 No stop 07 54 30 --- 01 46 44 25.6 232.9 3.3 49.4 174 154 07 51 31 07 54 30 J2232-1659 01 46 44 27.0 233.3 3.2 49.4 -6 154 No stop 07 56 30 =2229-172 01 48 44 26.6 233.7 3.3 49.7 114 185 07 54 31 07 56 30 TXS 01 48 44 25.3 233.2 3.3 49.7 -6 185 No stop 07 59 30 --- 01 51 44 24.7 233.7 3.4 50.2 174 231 07 56 31 08 00 00 J2232-1659 01 52 14 26.0 234.3 3.3 50.2 24 231 08 00 00 08 02 00 =2229-172 01 54 15 25.6 234.6 3.3 50.5 120 262 08 00 01 08 02 00 TXS 01 54 15 24.3 234.1 3.4 50.6 -6 262 No stop 08 05 00 --- 01 57 15 23.7 234.6 3.4 51.0 174 308 08 02 01 08 05 00 J2232-1659 01 57 15 25.1 235.1 3.4 51.0 -6 308 No stop 08 07 00 =2229-172 01 59 16 24.7 235.4 3.4 51.2 114 338 08 05 01 08 07 00 TXS 01 59 16 23.3 234.9 3.5 51.3 -6 338 No stop 08 10 00 --- 02 02 16 22.8 235.4 3.5 51.7 174 385 08 07 01 08 10 30 J2232-1659 02 02 46 24.0 236.0 3.5 51.7 24 385 08 10 30 08 12 30 =2229-172 02 04 47 23.6 236.3 3.5 52.0 120 415 08 10 31 08 12 30 TXS 02 04 47 22.3 235.8 3.6 52.0 -6 415 No stop 08 15 30 --- 02 07 47 21.8 236.3 3.6 52.5 174 462 08 12 31 08 15 30 J2232-1659 02 07 47 23.1 236.8 3.6 52.4 -6 462 No stop 08 17 30 =2229-172 02 09 47 22.7 237.1 3.6 52.7 114 492 08 15 31 Schedule for KUNMING (Code Km ) Page 3 A definite answer to the nature of the water gigamaser in TXS2226-184 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 ---------------------------------------------------------------------------------------- --- Sun 7 Mar 2021 Day 66 --- 08 17 30 TXS 02 09 47 21.4 236.6 3.7 52.7 -6 492 No stop 08 20 30 --- 02 12 48 20.8 237.1 3.7 53.1 174 538 08 17 31 08 21 00 J2232-1659 02 13 18 22.0 237.7 3.7 53.2 24 538 08 21 00 08 23 00 =2229-172 02 15 18 21.6 238.0 3.7 53.4 120 569 08 21 01 08 23 00 TXS 02 15 18 20.3 237.4 3.7 53.5 -6 569 No stop 08 26 00 --- 02 18 19 19.7 237.9 3.8 53.8 174 615 08 23 01 08 26 00 J2232-1659 02 18 19 21.1 238.5 3.7 53.8 -6 615 No stop 08 28 00 =2229-172 02 20 19 20.7 238.8 3.8 54.1 114 646 08 26 01 08 28 00 TXS 02 20 19 19.4 238.2 3.8 54.1 -6 646 No stop 08 31 00 --- 02 23 20 18.8 238.6 3.9 54.5 174 692 08 28 01 08 31 30 J2232-1659 02 23 50 20.0 239.3 3.8 54.5 24 692 08 31 30 08 33 30 =2229-172 02 25 50 19.6 239.6 3.9 54.7 120 723 08 31 31 08 33 30 TXS 02 25 50 18.3 239.0 3.9 54.8 -6 723 No stop 08 36 30 --- 02 28 50 17.7 239.4 4.0 55.2 174 769 08 33 31 08 36 30 J2232-1659 02 28 50 19.0 240.0 3.9 55.1 -6 769 No stop 08 38 30 =2229-172 02 30 51 18.6 240.3 4.0 55.3 114 800 08 36 31 08 38 30 TXS 02 30 51 17.3 239.7 4.0 55.4 -6 800 No stop 08 41 30 --- 02 33 51 16.7 240.1 4.1 55.8 174 846 08 38 31 08 42 00 J2232-1659 02 34 21 17.9 240.8 4.0 55.7 24 846 08 42 00 08 44 00 =2229-172 02 36 22 17.5 241.1 4.0 56.0 120 877 08 42 01 08 44 00 TXS 02 36 22 16.2 240.5 4.1 56.0 -6 877 No stop 08 47 00 --- 02 39 22 15.6 240.9 4.2 56.4 174 923 08 44 01 08 47 00 J2232-1659 02 39 22 16.9 241.5 4.1 56.3 -6 923 No stop 08 49 00 =2229-172 02 41 23 16.5 241.8 4.1 56.5 114 954 08 47 01 08 49 00 TXS 02 41 23 15.2 241.2 4.2 56.6 -6 954 No stop 08 52 00 --- 02 44 23 14.6 241.6 4.2 57.0 174 1000 08 49 01 08 52 30 J2232-1659 02 44 53 15.8 242.3 4.2 56.9 24 1000 08 52 30 08 54 30 =2229-172 02 46 53 15.4 242.5 4.2 57.2 120 1031 08 52 31 08 54 30 TXS 02 46 53 14.1 241.9 4.3 57.2 -6 1031 No stop 08 57 30 --- 02 49 54 13.5 242.3 4.3 57.6 174 1077 08 54 31 Schedule for KUNMING (Code Km ) Page 4 A definite answer to the nature of the water gigamaser in TXS2226-184 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 ---------------------------------------------------------------------------------------- --- Sun 7 Mar 2021 Day 66 --- 08 57 30 J2232-1659 02 49 54 14.8 242.9 4.3 57.5 -6 1077 No stop 08 59 30 =2229-172 02 51 54 14.4 243.2 4.3 57.7 114 1108 08 57 31 08 59 30 TXS 02 51 54 13.1 242.6 4.4 57.8 -6 1108 No stop 09 02 30 --- 02 54 55 12.5 243.0 4.4 58.1 174 1154 08 59 31 09 03 00 J2232-1659 02 55 25 13.7 243.7 4.4 58.1 24 1154 09 03 00 09 05 00 =2229-172 02 57 25 13.3 243.9 4.4 58.3 120 1185 09 03 01 09 05 00 TXS 02 57 25 12.0 243.3 4.5 58.4 -6 1185 No stop 09 08 00 --- 03 00 26 11.4 243.7 4.5 58.7 174 1231 09 05 01 09 08 00 J2232-1659 03 00 26 12.7 244.3 4.4 58.6 -6 1231 No stop 09 10 00 =2229-172 03 02 26 12.3 244.6 4.5 58.8 114 1262 09 08 01 09 10 00 TXS 03 02 26 11.0 243.9 4.5 58.9 -6 1262 No stop 09 13 00 --- 03 05 26 10.4 244.3 4.6 59.2 174 1308 09 10 01 09 13 30 J2232-1659 03 05 57 11.6 245.0 4.5 59.1 24 1308 09 13 30 09 15 30 =2229-172 03 07 57 11.1 245.3 4.6 59.3 120 1338 09 13 31 09 15 30 TXS 03 07 57 9.9 244.6 4.6 59.4 -6 1338 No stop 09 18 30 --- 03 10 57 9.3 245.0 4.7 59.7 174 1385 09 15 31 09 18 30 J2232-1659 03 10 57 10.5 245.6 4.6 59.6 -6 1385 No stop 09 20 30 =2229-172 03 12 58 10.1 245.9 4.7 59.8 114 1415 09 18 31 09 20 30 TXS 03 12 58 8.9 245.2 4.7 59.9 -6 1415 No stop 09 23 30 --- 03 15 58 8.2 245.6 4.8 60.2 174 1462 09 20 31 09 24 00 J2232-1659 03 16 28 9.4 246.3 4.7 60.1 24 1462 09 24 00 09 26 00 =2229-172 03 18 29 9.0 246.5 4.8 60.3 120 1492 09 24 01 09 26 00 TXS 03 18 29 7.7 245.9 4.8 60.4 -6 1492 No stop 09 29 00 --- 03 21 29 7.1 246.2 4.9 60.7 174 1538 09 26 01 09 29 00 J2232-1659 03 21 29 8.3 246.9 4.8 60.6 -6 1538 No stop 09 31 00 =2229-172 03 23 29 7.9 247.1 4.8 60.8 114 1569 09 29 01 09 31 00 TXS 03 23 29 6.7 246.5 4.9 60.9 -6 1569 No stop 09 34 00 --- 03 26 30 6.1 246.8 4.9 61.2 174 1615 09 31 01 09 34 30 J2232-1659 03 27 00 7.2 247.6 4.9 61.1 24 1615 09 34 30 09 36 30 =2229-172 03 29 00 6.8 247.8 4.9 61.2 120 1646 09 34 31 Schedule for KUNMING (Code Km ) Page 5 A definite answer to the nature of the water gigamaser in TXS2226-184 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 ---------------------------------------------------------------------------------------- --- Sun 7 Mar 2021 Day 66 --- 09 36 30 TXS 03 29 00 5.5 247.1 5.0 61.4 -6 1646 No stop 09 39 30 --- 03 32 01 4.9 247.4 5.0 D 61.7 0 1692 09 36 31 09 39 30 J2232-1659 03 32 01 6.1 248.1 5.0 61.5 -6 1692 No stop 09 41 30 =2229-172 03 34 01 5.7 248.4 5.0 61.7 114 1723 09 39 31 11 23 15 3C48 05 16 03 42.4 293.2 3.6 85.1 6018 1723 11 23 15 11 30 15 --- 05 23 04 40.9 293.4 3.7 84.2 420 1831 11 23 16 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess121.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: 13 Station: KUNMING Total bit rate: 2048 Format: MARK5B 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= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 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 5 1 5 2 6 2 6 3 7 3 7 4 8 4 8 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: 20 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= 630.49 630.49 630.49 630.49 694.49 694.49 694.49 694.49 758.49 758.49 758.49 758.49 822.49 822.49 822.49 822.49 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: 20 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) * TXS 22 26 30.065630 * 22 29 12.494600 22 30 18.881967 0.00 -18 26 09.57617 *-18 10 47.24200 -18 04 28.99753 0.00 From catalog imbedded in main SCHED input file. J0137+3309 01 34 49.826374 * 01 37 41.299440 01 38 51.768519 0.52 0134+329 32 54 20.25881 * 33 09 35.13299 33 15 56.63291 0.50 * 3C48 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.vlba.2012jul J0137+33 rfc_2012b Petrov, 2012, unpublished 140 observations J1642+3948 16 41 17.606228 * 16 42 58.809965 16 43 41.199694 0.77 * 3C345 39 54 10.81496 * 39 48 36.99402 39 45 58.75868 0.52 1641+399 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.vlba.2012jul J1642+39 GSFC 2011B astro solution 52621 Observations * J2232-1659 22 29 40.999940 * 22 32 22.564554 22 33 28.600541 0.26 2229-172 -17 14 29.56607 *-16 59 01.89249 -16 52 41.60980 0.43 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.vlba.2012jul rfc_2012b Petrov, 2012, unpublished 86 observations J2253+1608 22 51 29.519738 * 22 53 57.747937 22 54 58.244678 0.68 * 3C454.3 15 52 54.34810 * 16 08 53.56093 16 15 26.22048 0.72 2251+158 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.vlba.2012jul J2253+16 GSFC 2011B astro solution 39747 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 TXS sess121.C2048 1 2 3 4 5 6 7 8 9 13 18 19 + 3.500 337.788 3C48 sess121.C2048 1 2 3 4 5 6 7 8 9 13 18 19 + 0.117 22.154 3C345 sess121.C2048 1 2 3 4 5 6 7 8 9 13 0.133 18.133 J2232-1659 sess121.C2048 1 2 3 4 5 6 7 8 9 13 18 19 + 2.417 251.118 3C454.3 sess121.C2048 1 2 3 4 5 7 8 9 13 19 0.176 21.167 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) TXS 16.6 3C48 51.7 3C345 98.8 J2232-1659 15.2 3C454.3 21.8 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