COVER INFORMATION Station: TIANMA65 (Code T6 ) Experiment: EVN observation of 6 GHZ OH absorption line Exp. Code: EK045C Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Dongjin Kim Address: Max-Planck-Institut fuer Radioastronomie Auf dem Huegel 69 53121 Bonn Germany Phone: 0049-176457-18197 EMAIL: dongjin@mpifr-bonn.mpg.de Fax: 0049-2257-301-106 Phone during observation: 0049-2257-301-155 Observing mode: 5cm 2048 Mbps, 32-16-2 Notes: Schedule for TIANMA65 (Code T6 ) Page 2 EVN observation of 6 GHZ OH absorption line 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 1 Nov 2019 Day 305 --- Next scan frequencies: 5975.00 5975.00 5975.00 5975.00 6039.00 6039.00 6039.00 6039.00 6103.00 6103.00 6103.00 6103.00 6167.00 6167.00 6167.00 6167.00 Next BBC frequencies: 675.00 675.00 675.00 675.00 739.00 739.00 739.00 739.00 803.00 803.00 803.00 803.00 867.00 867.00 867.00 867.00 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 04 30 00 3C273 15 15 16 41.3 241.5 2.8 48.8 0 0 04 30 00 04 33 00 --- 15 18 17 40.8 242.1 2.8 49.2 180 46 04 30 01 04 34 00 NGC4261 15 19 17 41.1 248.2 3.0 53.1 46 46 04 34 00 04 44 00 --- 15 29 19 39.0 250.2 3.1 54.1 600 201 04 34 01 04 44 30 NGC4261 15 29 49 38.9 250.3 3.2 54.1 28 201 04 44 30 04 54 30 --- 15 39 50 36.9 252.1 3.3 55.0 600 356 04 44 31 04 55 00 NGC4261 15 40 20 36.8 252.2 3.3 55.0 28 356 04 55 00 05 05 00 --- 15 50 22 34.8 253.9 3.5 55.8 600 510 04 55 01 05 06 00 3C273 15 51 22 34.3 248.7 3.4 52.9 47 510 05 06 00 05 09 00 --- 15 54 23 33.7 249.2 3.4 53.2 180 556 05 06 01 05 10 00 NGC4261 15 55 23 33.7 254.8 3.6 56.1 47 556 05 10 00 05 20 00 --- 16 05 25 31.6 256.4 3.8 56.8 600 711 05 10 01 05 20 30 NGC4261 16 05 55 31.5 256.5 3.8 56.8 28 711 05 20 30 05 30 30 --- 16 15 56 29.4 258.1 3.9 57.4 600 866 05 20 31 05 31 00 NGC4261 16 16 26 29.3 258.1 3.9 57.4 28 866 05 31 00 05 41 00 --- 16 26 28 27.2 259.7 4.1 57.8 600 1020 05 31 01 05 42 00 3C273 16 27 28 27.0 254.8 4.0 55.8 48 1020 05 42 00 05 45 00 --- 16 30 29 26.4 255.2 4.0 56.0 180 1067 05 42 01 05 46 00 NGC4261 16 31 29 26.2 260.4 4.2 58.1 48 1067 05 46 00 05 56 00 --- 16 41 30 24.1 261.8 4.4 58.4 600 1221 05 46 01 05 56 30 NGC4261 16 42 01 24.0 261.9 4.4 58.4 28 1221 05 56 30 06 06 30 --- 16 52 02 21.8 263.3 4.5 58.7 600 1376 05 56 31 06 07 00 NGC4261 16 52 32 21.7 263.4 4.5 58.8 28 1376 06 07 00 06 17 00 --- 17 02 34 19.6 264.8 4.7 59.0 600 1530 06 07 01 06 18 00 3C273 17 03 34 19.5 260.2 4.6 57.6 49 1530 06 18 00 06 21 00 --- 17 06 35 18.8 260.6 4.6 57.7 180 1577 06 18 01 Schedule for TIANMA65 (Code T6 ) Page 3 EVN observation of 6 GHZ OH absorption line 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 1 Nov 2019 Day 305 --- 06 22 00 NGC4261 17 07 35 18.5 265.5 4.8 59.1 48 1577 06 22 00 06 32 00 --- 17 17 36 16.4 266.8 5.0 59.2 600 1731 06 22 01 06 32 30 NGC4261 17 18 06 16.3 266.9 5.0 59.2 28 1731 06 32 30 06 42 30 --- 17 28 08 14.1 268.2 5.1 59.3 600 1886 06 32 31 06 43 00 NGC4261 17 28 38 14.0 268.2 5.1 59.3 28 1886 06 43 00 06 53 00 --- 17 38 40 11.9 269.6 5.3 59.4 600 2040 06 43 01 06 54 00 3C273 17 39 40 11.8 265.1 5.2 58.6 49 2040 06 54 00 06 57 00 --- 17 42 41 11.1 265.5 5.2 58.7 180 2087 06 54 01 06 58 00 NGC4261 17 43 41 10.8 270.2 5.4 59.4 49 2087 06 58 00 07 08 00 --- 17 53 42 8.6 271.5 5.6 59.4 600 2241 06 58 01 07 08 30 NGC4261 17 54 12 8.5 271.6 5.6 59.4 28 2241 07 08 30 07 18 30 --- 18 04 14 6.4 272.8 5.7 D 59.3 0 2396 07 08 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess319.M2048oh --- 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: 11 Station: TIANMA65 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= 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 5300.00 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 = A2 B1 A2 B1 A2 B1 A2 B1 A2 B1 A2 B1 A2 B1 A2 B1 The following frequency sets based on these setups were used. Frequency Set: 11 Setup file default. Used with PCAL = off LO sum= 5975.00 5975.00 5975.00 5975.00 6039.00 6039.00 6039.00 6039.00 6103.00 6103.00 6103.00 6103.00 6167.00 6167.00 6167.00 6167.00 BBC fr= 675.00 675.00 675.00 675.00 739.00 739.00 739.00 739.00 803.00 803.00 803.00 803.00 867.00 867.00 867.00 867.00 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: 11 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) * NGC4261 12 16 50.004473 * 12 19 23.216071 12 20 21.778287 0.00 06 06 08.63926 * 05 49 29.70008 05 43 06.33739 0.00 From catalog imbedded in main SCHED input file. * 3C273 12 26 33.245835 * 12 29 06.699731 12 30 05.352590 0.00 02 19 43.30577 * 02 03 08.59827 01 56 47.91501 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 NGC4261 sess319.M2048oh 1 2 3 4 5 6 7 8 9 10 11 12 + 6.500 767.167 3C273 sess319.M2048oh 1 2 3 4 5 6 7 8 9 10 11 12 + 0.700 81.950 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) NGC4261 36.9 3C273 32.8 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