COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: The nuclear structure in nearby AGN Exp. Code: gs032d Schedule Version: 1.00 Processed by SCHED version: 11.30 Version 11.3 update 1. April 14, 2014 PI: Tuomas Savolainen Address: MPIfR Bonn Auf dem Huegel 69 53121 Bonn, Germany Phone: +49 228 525 473 EMAIL: tsavolainen@mpifr-bonn.mpg.de Fax: +49 228 525 229 Phone during observation: +7 903 661 4865 Observing mode: L-band, dual-pol Notes: L-band, Radioastron-compatible frequency setup Mark5C stations should record in Mk5B+ format P-CAL is ON, Tsys is ON, auto-level (AGC) is ON Please send diskpacks to MPIfR Bonn Schedule for VLBA_MK (Code Mk ) Page 2 The nuclear structure in nearby AGN 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 5 Jun 2014 Day 156 --- Next scan frequencies: 1668.00 1668.00 1668.00 1668.00 Next BBC frequencies: 932.00 932.00 932.00 932.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 00 23 50 1228+126 06 55 27 9.7 80.3 -5.6 -71.7 0 0 00 23 50 00 33 30 --- 07 05 09 11.9 81.0 -5.4 -72.0 580 19 00 23 51 00 33 50 1228+126 07 05 29 12.0 81.1 -5.4 -72.1 14 19 00 33 50 00 43 30 --- 07 15 10 14.2 81.8 -5.3 -72.4 580 37 00 33 51 00 45 00 1236+077 07 16 41 11.1 86.0 -5.4 -71.2 75 37 00 45 00 00 47 30 --- 07 19 11 11.6 86.2 -5.3 -71.2 150 42 00 45 01 00 48 40 1222+037 07 20 21 14.0 91.4 -5.1 -70.4 58 42 00 48 40 00 51 40 --- 07 23 22 14.7 91.7 -5.0 -70.4 180 48 00 48 41 00 53 00 1228+126 07 24 42 16.5 82.5 -5.1 -72.7 66 48 00 53 00 01 01 40 --- 07 33 23 18.5 83.2 -5.0 -73.0 520 65 00 53 01 01 02 00 1228+126 07 33 43 18.6 83.2 -5.0 -73.0 14 65 01 02 00 01 11 40 --- 07 43 25 20.8 83.9 -4.8 -73.3 580 83 01 02 01 01 12 40 1236+077 07 44 25 17.6 88.3 -4.9 -71.5 45 83 01 12 40 01 15 10 --- 07 46 56 18.2 88.5 -4.9 -71.5 150 88 01 12 41 01 16 10 1228+126 07 47 56 21.9 84.3 -4.7 -73.4 45 88 01 16 10 01 20 10 --- 07 51 56 22.8 84.6 -4.7 -73.5 240 96 01 16 11 01 20 30 1228+126 07 52 16 22.9 84.6 -4.7 -73.5 14 96 01 20 30 01 30 00 --- 08 01 48 25.1 85.3 -4.5 -73.7 570 114 01 20 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: ra18cm2.set Matching groups in ./gs032d_freq.dat: v20cm_2 Beware RFI at high end. Setup group: 10 Station: VLBA_MK Total bit rate: 256 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 2600.00 2600.00 2600.00 2600.00 Net SB= L L U U IF SB = L L L L Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U L L IF = A C A C VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.6 15.4 The following frequency sets based on these setups were used. See the crd files for VLBA legacy system setups and pcal detection details. Frequency Set: 20 Setup file default. Used with PCAL = 1MHz LO sum= 1668.00 1668.00 1668.00 1668.00 BBC fr= 932.00 932.00 932.00 932.00 Bandwd= 16.00 16.00 16.00 16.00 VLBA legacy crd files using 4 channels based on RDBE channels: 1 2 3 4 CRD fr= 931.99 931.99 932.01 932.01 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 20 21 22 23 24 25 26 27 28 30 Track assignments are: track1= 1, 2, 3, 4 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * FAKERA 11 57 21.769299 * 12 00 00.000000 12 00 41.923521 0.00 85 16 41.77889 * 85 00 00.00000 84 55 27.17430 0.00 From catalog imbedded in main SCHED input file. fake circumpolar target for a TS to look at J1239+0730 12 36 52.308755 * 12 39 24.588327 12 40 09.440650 0.10 * 1236+077 07 46 45.39997 * 07 30 17.18902 07 25 31.24531 0.11 J1239+07 From catalog imbedded in main SCHED input file. rfc_2012b Petrov, 2012, unpublished 1855 observations J1224+0330 12 22 19.097169 * 12 24 52.421935 12 25 37.543272 0.11 * 1222+037 03 47 27.06583 * 03 30 50.29268 03 25 59.94064 0.13 J1224+03 From catalog imbedded in main SCHED input file. rfc_2012b Petrov, 2012, unpublished 688 observations * 1226+023 12 26 33.245835 * 12 29 06.699731 12 29 51.900411 0.00 J1229+0203 02 19 43.30547 * 02 03 08.59797 01 58 18.56773 0.00 3C273B ./gs032d_sources.radioastron 3C273 AGN, rfc_2013d Petrov, 2013, unpublished 32011 observations * 1228+126 12 28 17.569280 * 12 30 49.423382 12 31 34.048480 0.00 J1230+1223 12 40 01.74883 * 12 23 28.04365 12 18 41.71051 0.00 3C274 ./gs032d_sources.radioastron M87 AGN, rfc_2013d Petrov, 2013, unpublished 55201 observations VIR-A 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 FAKERA ra18cm2.set 8 5.525 0.000 1236+077 ra18cm2.set 1 2 3 4 6 7 8 13 14 15 16 1 + 1.192 78.475 1222+037 ra18cm2.set 1 2 3 4 6 7 13 14 15 16 17 + 0.483 28.442 1226+023 ra18cm2.set 1 2 3 4 6 7 8 13 14 15 16 1 + 0.589 40.489 1228+126 ra18cm2.set 1 2 3 4 6 7 8 13 14 15 16 1 + 12.719 1103.989 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) FAKERA 69.1 1236+077 111.8 1222+037 110.4 1226+023 112.0 1228+126 107.7 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