COVER INFORMATION Station: TIANMA65 (Code T6 ) Experiment: Red Nuggests Exp. Code: EH046A Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Dan Hu Address: Masaryk University Kotlarska 2 Brno Czech Republic Phone: +420 608462199 EMAIL: hudan.bazhaoyu@gmail.com Fax: Phone during observation: Observing mode: vlbi Notes: PCAL off, please COVER LETTER: Target: Mrk1216 Primary phase-reference calibrator: J0830-0636 Secondary phase-reference calibrator: J0827-0708 (08:27:06.167617, -07:08:45.89819, J2000) Fringe-finder: 4C39.25 Calibrator for e-MERLIN: 3C286 Note: the secondary p-ref calibrator is not included in the catalogues. Add manually. Schedule for TIANMA65 (Code T6 ) Page 2 Red Nuggests 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 ---------------------------------------------------------------------------------------- --- Thu 20 Feb 2025 Day 51 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 643.51 643.51 643.51 643.51 579.51 579.51 579.51 579.51 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 18 30 00 J0830-0636 12 38 19 20.2 248.5 4.1 53.3 0 0 18 30 00 18 31 00 =0828-064 12 39 19 20.0 248.7 4.1 53.4 60 8 18 30 01 18 31 00 J0827-0708 12 39 19 18.9 248.8 4.2 53.6 -6 8 No stop 18 34 30 --- 12 42 49 18.2 249.3 4.2 53.9 204 35 18 31 01 18 34 30 J0830-0636 12 42 49 19.3 249.2 4.2 53.7 -6 35 No stop 18 36 30 =0828-064 12 44 50 18.9 249.5 4.2 53.9 114 50 18 34 31 18 40 00 4C39.25 12 48 20 48.9 295.1 3.3 85.2 87 50 18 40 00 18 45 00 --- 12 53 21 47.9 295.3 3.4 84.5 300 89 18 40 01 18 48 00 J0830-0636 12 56 22 16.5 251.3 4.4 54.7 53 89 18 48 00 18 50 00 =0828-064 12 58 22 16.1 251.6 4.4 54.9 120 104 18 48 01 18 50 00 MRK1216 12 58 22 15.5 251.6 4.5 54.9 -4 104 No stop 18 54 00 --- 13 02 23 14.7 252.2 4.5 55.2 236 135 18 50 01 18 54 00 J0830-0636 13 02 23 15.3 252.2 4.5 55.2 -4 135 No stop 18 55 30 =0828-064 13 03 53 15.0 252.4 4.5 55.3 86 147 18 54 01 18 55 30 MRK1216 13 03 53 14.4 252.4 4.6 55.3 -4 147 No stop 18 59 30 --- 13 07 53 13.6 253.0 4.6 55.6 236 178 18 55 31 19 00 00 J0830-0636 13 08 24 14.1 253.0 4.6 55.6 26 178 19 00 00 19 01 00 =0828-064 13 09 24 13.9 253.2 4.6 55.6 60 185 19 00 01 19 01 00 MRK1216 13 09 24 13.3 253.2 4.7 55.7 -4 185 No stop 19 05 00 --- 13 13 24 12.5 253.8 4.7 55.9 236 216 19 01 01 19 05 00 J0830-0636 13 13 24 13.1 253.8 4.7 55.9 -4 216 No stop 19 06 30 =0828-064 13 14 55 12.8 254.0 4.7 56.0 86 228 19 05 01 19 06 30 MRK1216 13 14 55 12.2 254.0 4.7 56.0 -4 228 No stop 19 10 30 --- 13 18 55 11.3 254.5 4.8 56.3 236 259 19 06 31 19 11 00 J0830-0636 13 19 25 11.8 254.6 4.8 56.2 26 259 19 11 00 19 12 00 =0828-064 13 20 26 11.6 254.8 4.8 56.3 60 267 19 11 01 19 12 00 MRK1216 13 20 26 11.0 254.8 4.8 56.4 -4 267 No stop 19 16 00 --- 13 24 26 10.2 255.3 4.9 56.6 236 298 19 12 01 Schedule for TIANMA65 (Code T6 ) Page 3 Red Nuggests 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 ---------------------------------------------------------------------------------------- --- Thu 20 Feb 2025 Day 51 --- 19 16 00 J0830-0636 13 24 26 10.8 255.3 4.9 56.5 -4 298 No stop 19 17 30 =0828-064 13 25 56 10.5 255.5 4.9 56.6 86 309 19 16 01 19 17 30 MRK1216 13 25 56 9.9 255.5 4.9 56.7 -4 309 No stop 19 21 30 --- 13 29 57 9.0 256.1 5.0 56.9 236 340 19 17 31 19 22 00 J0830-0636 13 30 27 9.5 256.2 5.0 56.8 26 340 19 22 00 19 23 00 =0828-064 13 31 27 9.3 256.3 5.0 56.9 60 348 19 22 01 20 28 00 4C39.25 14 36 38 28.3 300.6 5.1 71.4 3774 348 20 28 00 20 33 00 --- 14 41 39 27.4 300.9 5.2 70.8 300 386 20 28 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess125.L1024 --- 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: 9 Station: TIANMA65 Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 Net SB= L L U U L L U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 5 1 5 2 6 2 6 BBC SB= U U L L U U L L IF = A4 B3 A4 B3 A4 B3 A4 B3 The following frequency sets based on these setups were used. Frequency Set: 6 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 BBC fr= 643.51 643.51 643.51 643.51 579.51 579.51 579.51 579.51 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 6 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * MRK1216 08 26 19.790511 * 08 28 47.110000 08 30 02.379772 0.00 -06 46 22.96081 *-06 56 24.50000 -07 01 31.12857 0.00 From catalog imbedded in main SCHED input file. * J0827-0708 08 24 39.080163 * 08 27 06.167617 08 28 21.317220 0.00 -06 58 50.25170 *-07 08 45.89819 -07 13 49.57150 0.00 From catalog imbedded in main SCHED input file. 0828-064 08 28 22.066150 * 08 30 49.744063 08 32 05.198449 0.16 * J0830-0636 -06 26 11.33893 *-06 36 19.99111 -06 41 30.18078 0.36 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 82 observations. * 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 39.211077 0.31 J0927+3902 39 15 23.56644 * 39 02 20.85185 38 55 45.33705 0.16 0923+392 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0927+39 GSFC 2016a X/S astro solution, 250526 observations. * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 19.199008 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 22 30.66870 0.16 1328+307 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1331+30 GSFC 2016a X/S astro solution, 269 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 MRK1216 sess125.L1024 1 2 3 4 5 6 7 8 9 10 3.408 229.607 J0827-0708 sess125.L1024 1 2 3 4 5 6 7 8 9 10 0.175 12.310 J0830-0636 sess125.L1024 1 2 3 4 5 6 7 8 9 10 1.275 78.493 4C39.25 sess125.L1024 1 2 3 4 5 6 7 8 9 10 0.325 25.522 3C286 sess125.L1024 10 0.100 0.746 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) MRK1216 147.9 J0827-0708 147.4 J0830-0636 148.5 4C39.25 149.6 3C286 130.8 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