COVER INFORMATION Station: VLBA_OV (Code Ov ) 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_OV (Code Ov ) 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 ---------------------------------------------------------------------------------------- --- Wed 4 Jun 2014 Day 155 --- 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 21 43 00 1228+126 06 42 54 9.6 81.8 -5.8 H -53.8 0 0 21 43 00 21 51 30 --- 06 51 25 11.3 83.1 -5.7 -54.0 0 16 21 43 01 21 52 00 1228+126 06 51 55 11.4 83.1 -5.7 -54.0 24 16 21 52 00 22 01 30 --- 07 01 27 13.3 84.5 -5.5 -54.2 570 35 21 52 01 22 02 30 1236+077 07 02 27 8.9 87.4 -5.6 -53.3 43 35 22 02 30 22 05 00 --- 07 04 57 9.4 87.8 -5.6 -53.4 150 40 22 02 31 22 06 00 1228+126 07 05 57 14.2 85.2 -5.4 -54.3 42 40 22 06 00 22 14 30 --- 07 14 29 15.9 86.4 -5.3 -54.4 510 56 22 06 01 22 15 00 1228+126 07 14 59 16.0 86.5 -5.3 -54.4 24 56 22 15 00 22 20 30 --- 07 20 30 17.1 87.3 -5.2 -54.5 330 67 22 15 01 22 21 30 1236+077 07 21 30 12.7 90.3 -5.3 -53.4 43 67 22 21 30 22 24 00 --- 07 24 00 13.2 90.7 -5.3 -53.4 150 71 22 21 31 ---------- Space segment 08: L-band VLBI scans ---------- 22 25 00 1228+126 07 25 00 18.0 88.0 -5.1 -54.5 42 71 22 25 00 22 44 30 --- 07 44 34 21.9 90.9 -4.8 -54.6 1170 109 22 25 01 22 45 00 1228+126 07 45 04 22.0 91.0 -4.8 -54.6 24 109 22 45 00 23 04 30 --- 08 04 37 25.9 94.1 -4.4 -54.4 1170 147 22 45 01 23 05 00 1228+126 08 05 07 26.0 94.1 -4.4 -54.4 24 147 23 05 00 23 24 30 --- 08 24 40 29.8 97.3 -4.1 -53.9 1170 185 23 05 01 ---------- L-band GRT-only VLBI scans - segment 09L ---------- 23 26 30 1236+077 08 26 41 25.6 100.6 -4.2 -52.1 102 185 23 26 30 23 29 00 --- 08 29 11 26.1 101.0 -4.2 -52.0 150 189 23 26 31 23 30 00 1228+126 08 30 11 30.9 98.2 -4.0 -53.8 42 189 23 30 00 23 31 00 --- 08 31 11 31.1 98.4 -4.0 -53.7 60 191 23 30 01 23 31 20 1228+126 08 31 31 31.2 98.4 -4.0 -53.7 14 191 23 31 20 23 41 20 --- 08 41 33 33.2 100.2 -3.8 -53.3 600 211 23 31 21 23 41 40 1228+126 08 41 53 33.2 100.2 -3.8 -53.3 14 211 23 41 40 23 51 20 --- 08 51 35 35.1 101.9 -3.7 -52.9 580 229 23 41 41 Schedule for VLBA_OV (Code Ov ) Page 3 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 ---------------------------------------------------------------------------------------- --- Wed 4 Jun 2014 Day 155 --- 23 52 20 1236+077 08 52 35 30.6 105.1 -3.8 -50.8 42 229 23 52 20 23 54 50 --- 08 55 05 31.1 105.6 -3.8 -50.7 150 234 23 52 21 23 56 00 1222+037 08 56 15 31.5 112.1 -3.5 -47.6 58 234 23 56 00 23 59 00 --- 08 59 16 32.0 112.7 -3.4 -47.4 180 240 23 56 01 --- Thu 5 Jun 2014 Day 156 --- 00 00 00 1226+023 09 00 16 30.4 113.3 -3.5 -47.0 48 240 00 00 00 00 09 00 --- 09 09 17 32.1 115.1 -3.3 -46.2 540 257 00 00 01 00 10 30 1228+126 09 10 48 38.8 105.5 -3.3 -51.7 68 257 00 10 30 00 13 00 --- 09 13 18 39.3 106.0 -3.3 -51.6 150 262 00 10 31 00 13 20 1228+126 09 13 38 39.4 106.1 -3.3 -51.5 14 262 00 13 20 00 23 30 --- 09 23 50 41.3 108.1 -3.1 -50.8 610 282 00 13 21 00 23 50 1228+126 09 24 10 41.4 108.2 -3.1 -50.7 14 282 00 23 50 00 33 30 --- 09 33 52 43.2 110.3 -3.0 -49.9 580 300 00 23 51 00 33 50 1228+126 09 34 12 43.3 110.3 -3.0 -49.8 14 300 00 33 50 00 43 30 --- 09 43 53 45.1 112.5 -2.8 -48.9 580 319 00 33 51 00 45 00 1236+077 09 45 23 40.5 115.8 -2.9 -46.3 72 319 00 45 00 00 47 30 --- 09 47 54 40.9 116.4 -2.9 -46.0 150 324 00 45 01 00 48 40 1222+037 09 49 04 40.7 123.7 -2.6 -41.6 57 324 00 48 40 00 51 40 --- 09 52 05 41.2 124.5 -2.6 -41.1 180 330 00 48 41 00 53 00 1228+126 09 53 25 46.8 114.7 -2.6 -47.8 61 330 00 53 00 01 01 40 --- 10 02 06 48.4 116.8 -2.5 -46.6 520 347 00 53 01 01 02 00 1228+126 10 02 26 48.4 116.9 -2.5 -46.6 14 347 01 02 00 01 11 40 --- 10 12 08 50.1 119.4 -2.3 -45.2 580 365 01 02 01 01 12 40 1236+077 10 13 08 45.3 122.5 -2.5 -42.6 42 365 01 12 40 01 15 10 --- 10 15 38 45.7 123.1 -2.4 -42.2 150 370 01 12 41 01 16 10 1228+126 10 16 39 50.9 120.7 -2.2 -44.5 42 370 01 16 10 01 20 10 --- 10 20 39 51.6 121.8 -2.2 -43.8 240 378 01 16 11 01 20 30 1228+126 10 20 59 51.6 121.9 -2.2 -43.8 14 378 01 20 30 01 30 00 --- 10 30 31 53.2 124.7 -2.0 -42.1 570 396 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: 9 Station: VLBA_OV 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