COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: Snapshot observations of high Rotation Measure (RM) sources Exp. Code: ep091b Schedule Version: 1.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: A. Pasetto Address: Max-Planck-Institut fuer Radioastronomie Auf dem Huegel 69 Bonn Germany Phone: 0049-228-525-531 EMAIL: apasetto@mpifr-bonn.mpg.de Fax: 0049-2257-301-106 Phone during observation: 0049-15732747191 Observing mode: Snapshot observations of sources at 6cm (256 Mb/s) Notes: 8Sources to be observed at 6cm: 11.5 hours Schedule for SHANGHAI (Code Sh ) Page 2 Snapshot observations of high Rotation Measure (RM) sources 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 4 Jun 2015 Day 155 --- 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: 742.49 742.49 742.49 742.49 774.49 774.49 774.49 774.49 806.49 806.49 806.49 806.49 838.49 838.49 838.49 838.49 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 16 47 50 1311+14 17 43 52 26.0 271.4 4.5 62.0 0 0 16 47 50 16 57 50 --- 17 53 54 23.8 272.7 4.7 61.9 600 77 16 47 51 16 59 40 3C286 17 55 44 34.2 287.8 4.4 71.0 88 77 16 59 40 17 00 40 --- 17 56 44 34.0 287.9 4.4 71.0 60 85 16 59 41 17 00 50 3C286 17 56 54 34.0 287.9 4.4 70.9 8 85 17 00 50 17 01 50 --- 17 57 54 33.8 288.0 4.4 70.9 60 92 17 00 51 17 03 40 J1407+2827 17 59 45 40.1 282.6 3.9 71.8 95 92 17 03 40 17 04 40 =OQ208 18 00 45 39.9 282.7 3.9 71.7 60 100 17 03 41 17 04 50 J1407+2827 18 00 55 39.9 282.7 3.9 71.7 8 100 17 04 50 17 05 50 =OQ208 18 01 55 39.7 282.8 3.9 71.7 60 108 17 04 51 18 21 10 3C286 19 17 27 17.9 295.2 5.8 63.9 4504 108 18 21 10 18 22 10 --- 19 18 28 17.7 295.3 5.8 63.8 60 115 18 21 11 18 22 20 3C286 19 18 38 17.7 295.4 5.8 63.8 8 115 18 22 20 18 23 20 --- 19 19 38 17.5 295.5 5.8 63.7 60 123 18 22 21 18 25 40 J1333+2725 19 21 58 16.1 292.6 5.8 62.9 133 123 18 25 40 18 26 40 =1330+276 19 22 58 15.9 292.7 5.8 62.8 60 131 18 25 41 18 26 50 J1333+2725 19 23 08 15.8 292.7 5.8 62.8 8 131 18 26 50 18 27 50 =1330+276 19 24 09 15.6 292.8 5.8 62.7 60 138 18 26 51 18 30 10 J1407+2827 19 26 29 22.4 290.6 5.3 65.6 124 138 18 30 10 18 31 10 =OQ208 19 27 29 22.2 290.7 5.3 65.5 60 146 18 30 11 18 31 20 J1407+2827 19 27 39 22.1 290.7 5.3 65.5 8 146 18 31 20 18 32 20 =OQ208 19 28 39 21.9 290.8 5.3 65.5 60 154 18 31 21 --- Fri 5 Jun 2015 Day 156 --- 00 52 10 J2145+1115 01 49 32 30.7 264.8 4.1 60.4 22610 154 00 52 10 00 53 10 =2142+110 01 50 32 30.5 264.9 4.1 60.4 60 162 00 52 11 Schedule for SHANGHAI (Code Sh ) Page 3 Snapshot observations of high Rotation Measure (RM) sources 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 5 Jun 2015 Day 156 --- 00 53 20 J2145+1115 01 50 42 30.4 264.9 4.1 60.4 8 162 00 53 20 00 54 20 =2142+110 01 51 42 30.2 265.1 4.1 60.5 60 169 00 53 21 00 56 50 2147+09 01 54 12 29.2 263.4 4.1 59.6 144 169 00 56 50 01 06 50 --- 02 04 14 27.1 264.8 4.3 59.9 600 246 00 56 51 01 09 20 2245+03 02 06 45 35.4 250.0 3.3 53.7 131 246 01 09 20 01 19 20 --- 02 16 46 33.4 251.8 3.5 54.6 600 323 01 09 21 01 21 50 2147+09 02 19 17 23.9 266.9 4.5 60.1 131 323 01 21 50 01 31 50 --- 02 29 18 21.7 268.2 4.7 60.2 600 400 01 21 51 01 34 20 2245+03 02 31 49 30.3 254.3 3.8 55.7 131 400 01 34 20 01 44 20 --- 02 41 50 28.2 255.9 3.9 56.3 600 477 01 34 21 01 46 50 2147+09 02 44 21 18.5 270.2 4.9 60.3 130 477 01 46 50 01 56 50 --- 02 54 22 16.3 271.5 5.1 60.2 600 554 01 46 51 01 59 20 2245+03 02 56 53 25.1 258.2 4.2 57.1 131 554 01 59 20 02 09 20 --- 03 06 54 23.0 259.7 4.3 57.6 600 631 01 59 21 02 11 50 2147+09 03 09 25 13.1 273.4 5.4 60.1 130 631 02 11 50 02 21 50 --- 03 19 26 11.0 274.6 5.5 59.9 600 708 02 11 51 02 24 20 2245+03 03 21 57 19.8 261.9 4.6 58.1 130 708 02 24 20 02 34 20 --- 03 31 58 17.7 263.2 4.8 58.4 600 785 02 24 21 02 36 50 2147+09 03 34 29 7.8 276.5 5.8 59.6 130 785 02 36 50 02 46 50 --- 03 44 31 5.7 277.8 5.9 59.4 600 862 02 36 51 02 49 20 2245+03 03 47 01 14.5 265.3 5.0 58.8 130 862 02 49 20 02 59 20 --- 03 57 03 12.3 266.6 5.2 58.9 600 938 02 49 21 03 14 10 2245+03 04 11 55 9.1 268.6 5.4 59.0 887 938 03 14 10 03 24 10 --- 04 21 57 7.0 269.9 5.6 59.1 600 1015 03 14 11 03 24 20 2245+03 04 22 07 7.0 269.9 5.6 59.1 8 1015 03 24 20 03 29 20 --- 04 27 08 5.9 270.5 5.7 59.1 300 1054 03 24 21 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: evn_pol.6cm Matching groups in /Applications/SCHED/sched_11.4/catalogs/freq.dat: sh6cm Update freq. range AnTao 22Mar08 Setup group: 2 Station: SHANGHAI Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: 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 2 1 2 3 4 3 4 5 6 5 6 7 8 7 8 BBC SB= L L U U L L U U L L U U L L U U IF = C A C A C A C A C A C A C A C A The following frequency sets based on these setups were used. Frequency Set: 12 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= 742.49 742.49 742.49 742.49 774.49 774.49 774.49 774.49 806.49 806.49 806.49 806.49 838.49 838.49 838.49 838.49 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: 12 Track assignments are: track1= 18, 20, 2, 4, 22, 24, 6, 8, 26, 28, 10, 12, 30, 32, 14, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * 0845+04 08 42 39.211651 * 08 45 17.151000 08 46 05.149965 0.00 04 50 43.96264 * 04 39 46.64900 04 36 13.48645 0.00 From catalog imbedded in main SCHED input file. * 1048+01 10 45 48.428835 * 10 48 22.850000 10 49 10.472164 0.00 01 57 39.27331 * 01 41 47.46100 01 36 47.91161 0.00 From catalog imbedded in main SCHED input file. * 1246-07 12 43 28.786835 * 12 46 04.231000 12 46 52.993546 0.00 -07 14 23.54972 *-07 30 46.63100 -07 35 52.60486 0.00 From catalog imbedded in main SCHED input file. * 1311+14 13 08 39.228589 * 13 11 07.835000 13 11 54.337278 0.00 14 33 42.46904 * 14 17 46.69100 14 12 56.88165 0.00 From catalog imbedded in main SCHED input file. * 1405+04 14 02 29.970657 * 14 05 01.113000 14 05 48.768084 0.00 04 29 55.35285 * 04 15 35.87000 04 11 15.23371 0.00 From catalog imbedded in main SCHED input file. * 1616+04 16 14 09.049716 * 16 16 37.530000 16 17 24.718654 0.00 05 06 53.62193 * 04 59 31.96000 04 57 24.27440 0.00 From catalog imbedded in main SCHED input file. * 2147+09 21 44 42.474294 * 21 47 10.162000 21 47 56.280659 0.00 09 15 51.12554 * 09 29 46.63000 09 34 05.87354 0.00 From catalog imbedded in main SCHED input file. * 2245+03 22 42 55.747012 * 22 45 28.284000 22 46 15.507447 0.00 03 08 20.88831 * 03 24 08.71900 03 29 01.88424 0.00 From catalog imbedded in main SCHED input file. * 3C286 13 28 49.657758 * 13 31 08.288051 13 31 51.687512 0.18 J1331+3030 30 45 58.64059 * 30 30 32.95924 30 25 57.44431 0.17 1328+307 /Applications/SCHED/sched_11.4/catalogs/sources.gsfc J1331+30 GSFC 2015a astro solution, unpublished 225 observations. 1330+276 13 30 47.332192 * 13 33 07.490722 13 33 51.394876 0.14 * J1333+2725 27 40 40.74277 * 27 25 18.38297 27 20 43.15081 0.24 /Applications/SCHED/sched_11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 150 observations. OQ208 14 04 45.615156 * 14 07 00.394414 14 07 42.830797 0.24 * J1407+2827 28 41 29.23518 * 28 27 14.69022 28 23 01.23035 0.34 1404+286 /Applications/SCHED/sched_11.4/catalogs/sources.gsfc J1407+28 GSFC 2015a astro solution, unpublished 67871 observations. 2142+110 21 42 52.346942 * 21 45 18.775070 21 46 04.537112 0.02 * J2145+1115 11 01 36.29886 * 11 15 27.31235 11 19 44.68614 0.05 /Applications/SCHED/sched_11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 1232 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 0845+04 evn_pol.6cm 1 2 3 4 6 7 8 10 11 1.000 54.201 1048+01 evn_pol.6cm 1 2 3 4 6 7 8 10 11 1.000 53.273 1246-07 evn_pol.6cm 1 2 3 4 6 7 8 10 11 1.100 59.686 1311+14 evn_pol.6cm 1 2 3 4 6 7 8 10 11 12 1.333 77.391 1405+04 evn_pol.6cm 1 2 3 4 6 7 8 10 11 1.167 60.912 1616+04 evn_pol.6cm 1 2 3 4 6 7 8 10 11 1.200 65.640 2147+09 evn_pol.6cm 1 2 3 4 6 7 8 10 11 12 1.000 76.000 2245+03 evn_pol.6cm 1 2 3 4 6 7 8 10 11 12 1.083 84.446 3C286 evn_pol.6cm 1 2 3 4 6 7 8 10 11 12 0.067 5.092 J1333+2725 evn_pol.6cm 1 2 3 4 6 7 8 10 11 12 0.033 2.545 J1407+2827 evn_pol.6cm 1 2 3 4 6 7 8 10 11 12 0.067 5.093 J2145+1115 evn_pol.6cm 1 2 3 4 6 7 8 10 11 12 0.033 2.547 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) 0845+04 59.6 1048+01 89.1 1246-07 119.8 1311+14 115.1 1405+04 131.8 1616+04 151.4 2147+09 100.5 2245+03 89.6 3C286 108.8 J1333+2725 111.2 J1407+2827 115.8 J2145+1115 100.1 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