COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: Zooming into the centre of the mysterious high-redshift quasar PMN J0909 Exp. Code: EP115 Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Krisztina Perger Address: Eotvos University Pazmany P setany 1/A H-1117 Budapest Hungary Phone: +36 20 9959334 EMAIL: pergertina@gmail.com Fax: Phone during observation: +36 20 9959334 Observing mode: 6 cm 1 Gb/s Notes: Schedule for URUMQI (Code Ur ) Page 2 Zooming into the centre of the mysterious high-redshift quasar PMN J0909 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 Mar 2019 Day 60 --- Next scan frequencies: 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 Next BBC frequencies: 322.49 322.49 322.49 322.49 354.49 354.49 354.49 354.49 386.49 386.49 386.49 386.49 418.49 418.49 418.49 418.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 18 30 00 J0909+0121 10 55 48 41.7 216.6 1.8 25.6 0 0 18 30 00 18 40 00 =0906+015 11 05 50 40.6 219.5 1.9 27.5 600 77 18 30 01 18 41 30 J0909+0354 11 07 20 42.7 221.6 2.0 28.8 82 77 18 41 30 18 56 30 =0906+041 11 22 23 40.8 225.9 2.2 31.5 900 192 18 41 31 18 57 00 J0909+0354 11 22 53 40.7 226.0 2.2 31.6 28 192 18 57 00 19 12 00 =0906+041 11 37 55 38.7 230.1 2.5 33.9 900 308 18 57 01 19 12 30 J0909+0354 11 38 25 38.6 230.3 2.5 34.0 28 308 19 12 30 19 27 30 =0906+041 11 53 28 36.5 234.1 2.7 36.1 900 423 19 12 31 19 28 00 J0909+0354 11 53 58 36.4 234.3 2.7 36.2 28 423 19 28 00 19 43 00 =0906+041 12 09 00 34.1 237.9 3.0 38.1 900 538 19 28 01 19 43 30 J0909+0354 12 09 30 34.0 238.1 3.0 38.1 28 538 19 43 30 19 58 30 =0906+041 12 24 33 31.7 241.5 3.2 39.7 900 654 19 43 31 19 59 00 J0909+0354 12 25 03 31.6 241.6 3.2 39.8 28 654 19 59 00 20 14 00 =0906+041 12 40 05 29.2 244.9 3.5 41.2 900 769 19 59 01 20 22 30 J0909+0354 12 48 37 27.7 246.8 3.6 41.9 508 769 20 22 30 20 37 30 =0906+041 13 03 39 25.2 249.8 3.9 43.1 900 885 20 22 31 20 39 00 J0909+0835 13 05 10 28.3 253.8 3.9 44.8 80 885 20 39 00 20 44 00 =0906+087 13 10 10 27.4 254.8 4.0 45.1 300 923 20 39 01 20 45 30 J0909+0354 13 11 41 23.8 251.4 4.0 43.6 80 923 20 45 30 21 00 30 =0906+041 13 26 43 21.2 254.4 4.3 44.5 900 1038 20 45 31 21 01 00 J0909+0354 13 27 13 21.1 254.5 4.3 44.5 28 1038 21 01 00 21 16 00 =0906+041 13 42 16 18.5 257.3 4.5 45.2 900 1154 21 01 01 21 16 30 J0909+0354 13 42 46 18.4 257.4 4.5 45.2 28 1154 21 16 30 21 31 30 =0906+041 13 57 48 15.7 260.1 4.8 45.8 900 1269 21 16 31 21 32 00 J0909+0354 13 58 18 15.6 260.2 4.8 45.8 28 1269 21 32 00 21 47 00 =0906+041 14 13 21 12.9 262.9 5.1 46.2 900 1385 21 32 01 Schedule for URUMQI (Code Ur ) Page 3 Zooming into the centre of the mysterious high-redshift quasar PMN J0909 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 Mar 2019 Day 60 --- 21 48 30 J0909+0354 14 14 51 12.7 263.2 5.1 46.2 88 1385 21 48 30 22 03 30 =0906+041 14 29 53 10.0 265.8 5.3 46.5 900 1500 21 48 31 22 04 00 J0909+0354 14 30 24 9.9 265.9 5.3 46.5 28 1500 22 04 00 22 19 00 =0906+041 14 45 26 7.1 268.5 5.6 46.6 900 1615 22 04 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess119.C1024 --- 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: 14 Station: URUMQI Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 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 = A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 8 Setup file default. Used with PCAL = off LO sum= 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 BBC fr= 322.49 322.49 322.49 322.49 354.49 354.49 354.49 354.49 386.49 386.49 386.49 386.49 418.49 418.49 418.49 418.49 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 8 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) 0906+015 09 06 35.181592 * 09 09 10.091598 09 10 09.697860 0.11 * J0909+0121 01 33 48.12918 * 01 21 35.61770 01 16 47.34205 0.11 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.rfc rfc_2018a Petrov and Kovalev, in preparation 1139 observations 0906+087 09 06 31.437175 * 09 09 12.157509 09 10 13.928511 0.18 * J0909+0835 08 47 53.54414 * 08 35 41.09893 08 30 53.70712 0.28 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.rfc rfc_2018a Petrov and Kovalev, in preparation 222 observations 0906+041 09 06 38.966604 * 09 09 15.910976 09 10 16.273447 0.36 * J0909+0354 04 06 55.50047 * 03 54 42.75896 03 49 54.68799 0.73 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.rfc rfc_2018a Petrov and Kovalev, in preparation 45 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 J0909+0121 sess119.C1024 1 2 3 4 5 6 7 8 9 10 11 14 0.167 17.500 J0909+0835 sess119.C1024 1 2 3 4 5 6 8 9 10 11 14 0.167 13.083 J0909+0354 sess119.C1024 1 2 3 4 5 6 7 8 9 10 11 14 5.242 425.200 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) J0909+0121 154.4 J0909+0835 155.3 J0909+0354 155.0 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