COVER INFORMATION Station: KUNMING (Code Km ) 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 KUNMING (Code Km ) 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: 75.00 75.00 75.00 75.00 139.00 139.00 139.00 139.00 203.00 203.00 203.00 203.00 267.00 267.00 267.00 267.00 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 14 01 55 58.0 227.4 1.5 41.9 0 0 04 30 00 04 33 00 --- 14 04 55 57.5 228.4 1.6 42.7 180 46 04 30 01 04 34 00 NGC4261 14 05 55 58.2 237.0 1.8 49.8 48 46 04 34 00 04 44 00 --- 14 15 57 56.3 239.9 1.9 52.0 600 200 04 34 01 04 44 30 NGC4261 14 16 27 56.2 240.1 1.9 52.1 28 200 04 44 30 04 54 30 --- 14 26 29 54.2 242.7 2.1 54.0 600 354 04 44 31 04 55 00 NGC4261 14 26 59 54.1 242.8 2.1 54.1 28 354 04 55 00 05 05 00 --- 14 37 00 52.0 245.2 2.3 55.8 600 508 04 55 01 05 06 00 3C273 14 38 01 51.5 238.2 2.1 50.4 49 508 05 06 00 05 09 00 --- 14 41 01 50.9 239.0 2.2 51.0 180 554 05 06 01 05 10 00 NGC4261 14 42 01 51.0 246.3 2.4 56.5 49 554 05 10 00 05 20 00 --- 14 52 03 48.9 248.4 2.5 57.9 600 708 05 10 01 05 20 30 NGC4261 14 52 33 48.8 248.5 2.5 57.9 28 708 05 20 30 05 30 30 --- 15 02 35 46.7 250.5 2.7 59.1 600 862 05 20 31 05 31 00 NGC4261 15 03 05 46.5 250.6 2.7 59.2 28 862 05 31 00 05 41 00 --- 15 13 06 44.4 252.4 2.9 60.2 600 1015 05 31 01 05 42 00 3C273 15 14 07 44.2 246.3 2.7 56.1 50 1015 05 42 00 05 45 00 --- 15 17 07 43.6 246.8 2.8 56.5 180 1062 05 42 01 05 46 00 NGC4261 15 18 07 43.3 253.2 3.0 60.7 50 1062 05 46 00 05 56 00 --- 15 28 09 41.1 254.8 3.1 61.5 600 1215 05 46 01 05 56 30 NGC4261 15 28 39 41.0 254.9 3.1 61.6 28 1215 05 56 30 06 06 30 --- 15 38 41 38.8 256.4 3.3 62.3 600 1369 05 56 31 06 07 00 NGC4261 15 39 11 38.7 256.5 3.3 62.3 28 1369 06 07 00 06 17 00 --- 15 49 12 36.5 258.0 3.5 63.0 600 1523 06 07 01 06 18 00 3C273 15 50 12 36.6 252.5 3.3 59.9 50 1523 06 18 00 06 21 00 --- 15 53 13 35.9 253.0 3.4 60.1 180 1569 06 18 01 Schedule for KUNMING (Code Km ) 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 15 54 13 35.4 258.7 3.6 63.2 50 1569 06 22 00 06 32 00 --- 16 04 15 33.1 260.0 3.7 63.7 600 1723 06 22 01 06 32 30 NGC4261 16 04 45 33.0 260.1 3.7 63.8 28 1723 06 32 30 06 42 30 --- 16 14 47 30.8 261.4 3.9 64.2 600 1877 06 32 31 06 43 00 NGC4261 16 15 17 30.7 261.4 3.9 64.2 28 1877 06 43 00 06 53 00 --- 16 25 18 28.4 262.7 4.1 64.6 600 2031 06 43 01 06 54 00 3C273 16 26 18 28.7 257.7 3.9 62.4 51 2031 06 54 00 06 57 00 --- 16 29 19 28.0 258.1 4.0 62.5 180 2077 06 54 01 06 58 00 NGC4261 16 30 19 27.3 263.3 4.2 64.7 51 2077 06 58 00 07 08 00 --- 16 40 21 25.0 264.4 4.3 65.0 600 2231 06 58 01 07 08 30 NGC4261 16 40 51 24.9 264.5 4.3 65.0 28 2231 07 08 30 07 18 30 --- 16 50 52 22.7 265.7 4.5 65.2 600 2385 07 08 31 07 19 00 NGC4261 16 51 23 22.6 265.7 4.5 65.2 28 2385 07 19 00 07 29 00 --- 17 01 24 20.3 266.8 4.7 65.4 600 2538 07 19 01 07 30 00 3C273 17 02 24 20.6 262.2 4.5 63.9 51 2538 07 30 00 07 33 00 --- 17 05 25 20.0 262.5 4.6 64.0 180 2585 07 30 01 07 34 00 NGC4261 17 06 25 19.1 267.4 4.8 65.5 51 2585 07 34 00 07 44 00 --- 17 16 27 16.9 268.5 4.9 65.5 600 2738 07 34 01 07 44 30 NGC4261 17 16 57 16.8 268.5 4.9 65.6 28 2738 07 44 30 07 54 30 --- 17 26 58 14.5 269.6 5.1 65.6 600 2892 07 44 31 07 55 00 NGC4261 17 27 28 14.4 269.6 5.1 65.6 28 2892 07 55 00 08 05 00 --- 17 37 30 12.1 270.7 5.3 65.6 600 3046 07 55 01 08 06 00 3C273 17 38 30 12.5 266.3 5.1 64.8 51 3046 08 06 00 08 09 00 --- 17 41 31 11.8 266.6 5.2 64.8 180 3092 08 06 01 08 10 00 NGC4261 17 42 31 11.0 271.2 5.4 65.6 51 3092 08 10 00 08 20 00 --- 17 52 33 8.7 272.3 5.5 65.5 600 3246 08 10 01 08 20 30 NGC4261 17 53 03 8.6 272.3 5.5 65.5 28 3246 08 20 30 08 30 30 --- 18 03 04 6.3 273.4 5.7 65.4 600 3400 08 20 31 08 31 00 NGC4261 18 03 34 6.2 273.4 5.7 65.4 28 3400 08 31 00 08 41 00 --- 18 13 36 3.9 274.5 5.9 D 65.2 0 3554 08 31 01 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: 10 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= 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 5900.00 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: 12 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= 75.00 75.00 75.00 75.00 139.00 139.00 139.00 139.00 203.00 203.00 203.00 203.00 267.00 267.00 267.00 267.00 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: 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) * 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