COVER INFORMATION Station: GBT_COLD (Code Gb ) Experiment: The nuclear structure in nearby AGN Exp. Code: gs032c Schedule Version: 1.00 Processed by SCHED version: 11.10 Version 11.1 Beta of about April 26, 201 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: C/K-band, dual-pol Notes: C/K-band, Radioastron-compatible frequency setup P-CAL is ON, Tsys is ON auto-level (AGC) is ON Please, send Mk5 disk packs to MPIfR-Bonn Schedule for GBT_COLD (Code Gb ) 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 5 Feb 2014 Day 36 --- ---------- Space segment 05: K-band VLBI scans ---------- Next scan frequencies: 22236.00 22236.00 22236.00 22236.00 Next BBC frequencies: 800.00 800.00 800.00 800.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 03 00 00 1228+126 06 41 24 9.5 81.8 -5.8 -52.5 0 0 03 00 00 03 09 30 --- 06 50 55 11.4 83.2 -5.7 -52.8 570 18 03 00 01 03 10 00 1228+126 06 51 26 11.5 83.3 -5.7 -52.8 9 18 03 10 00 03 19 30 --- 07 00 57 13.3 84.7 -5.5 -53.0 570 37 03 10 01 03 20 00 1228+126 07 01 27 13.4 84.8 -5.5 -53.0 9 37 03 20 00 03 30 00 --- 07 11 29 15.4 86.3 -5.3 -53.1 600 56 03 20 01 ---------- GBT pointing scan. ---------- 03 31 00 1228+126 07 12 29 15.6 86.5 -5.3 -53.2 39 56 Stopped 03 44 30 --- 07 26 01 18.2 88.5 -5.1 -53.3 810 56 03 46 00 1228+126 07 27 31 18.5 88.8 -5.1 -53.3 69 56 03 46 00 03 50 00 --- 07 31 32 19.3 89.4 -5.0 -53.3 240 63 03 46 01 03 50 40 1228+126 07 32 12 19.4 89.5 -5.0 -53.3 19 63 03 50 40 03 57 30 --- 07 39 03 20.8 90.6 -4.9 -53.3 410 77 03 50 41 03 58 10 1228+126 07 39 43 20.9 90.7 -4.9 -53.3 19 77 03 58 10 04 05 00 --- 07 46 35 22.2 91.7 -4.7 -53.3 410 90 03 58 11 04 07 00 1236+077 07 48 35 18.0 94.8 -4.9 -51.9 79 90 04 07 00 04 09 00 --- 07 50 35 18.4 95.2 -4.8 -51.9 120 94 04 07 01 04 10 00 1226+023 07 51 35 17.1 101.5 -4.6 -50.2 12 94 04 10 00 04 20 00 --- 08 01 37 19.1 103.2 -4.5 -49.7 600 113 04 10 01 04 21 15 1228+126 08 02 52 25.4 94.4 -4.5 -53.1 18 113 04 21 15 04 25 00 --- 08 06 38 26.2 95.0 -4.4 -53.0 225 120 04 21 16 04 25 40 1228+126 08 07 18 26.3 95.1 -4.4 -53.0 19 120 04 25 40 04 34 00 --- 08 15 39 27.9 96.5 -4.3 -52.8 500 136 04 25 41 04 34 40 1228+126 08 16 19 28.1 96.6 -4.3 -52.8 19 136 04 34 40 04 43 00 --- 08 24 41 29.7 98.0 -4.1 -52.6 500 152 04 34 41 Schedule for GBT_COLD (Code Gb ) 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 5 Feb 2014 Day 36 --- ---------- Space segment 06: K-band VLBI scans ---------- 04 45 00 1228+126 08 26 41 30.1 98.3 -4.1 -52.5 99 152 04 45 00 04 54 30 --- 08 36 13 31.9 100.0 -3.9 -52.1 570 170 04 45 01 04 55 00 1228+126 08 36 43 32.0 100.1 -3.9 -52.1 9 170 04 55 00 05 04 30 --- 08 46 14 33.8 101.8 -3.8 -51.7 570 189 04 55 01 05 05 00 1228+126 08 46 44 33.9 101.9 -3.7 -51.7 9 189 05 05 00 05 15 00 --- 08 56 46 35.8 103.7 -3.6 -51.2 600 208 05 05 01 ---------- GBT pointing scan. ---------- 05 16 00 1228+126 08 57 46 36.0 103.9 -3.6 -51.1 39 208 Stopped 05 27 30 --- 09 09 18 38.2 106.2 -3.4 -50.4 690 208 05 28 40 1228+126 09 10 28 38.4 106.4 -3.4 -50.3 49 208 05 28 40 05 33 00 --- 09 14 49 39.3 107.3 -3.3 -50.0 260 216 05 28 41 05 34 00 1236+077 09 15 49 34.6 110.3 -3.4 -47.8 18 216 05 34 00 05 36 00 --- 09 17 49 35.0 110.7 -3.4 -47.6 120 220 05 34 01 05 37 00 1228+126 09 18 50 40.0 108.1 -3.2 -49.7 18 220 05 37 00 05 41 00 --- 09 22 50 40.7 108.9 -3.1 -49.3 240 228 05 37 01 05 41 40 1228+126 09 23 30 40.9 109.1 -3.1 -49.3 19 228 05 41 40 05 52 00 --- 09 33 52 42.8 111.3 -3.0 -48.3 620 248 05 41 41 05 54 00 1236+077 09 35 52 38.3 114.6 -3.1 -45.9 78 248 05 54 00 05 56 00 --- 09 37 53 38.6 115.0 -3.0 -45.7 120 251 05 54 01 05 57 00 1228+126 09 38 53 43.7 112.4 -2.9 -47.8 17 251 05 57 00 06 06 00 --- 09 47 54 45.3 114.5 -2.7 -46.8 540 269 05 57 01 06 06 40 1228+126 09 48 35 45.4 114.7 -2.7 -46.8 19 269 06 06 40 06 11 00 --- 09 52 55 46.2 115.7 -2.6 -46.2 260 277 06 06 41 06 12 00 1236+077 09 53 55 41.4 118.7 -2.8 -43.9 18 277 06 12 00 06 14 00 --- 09 55 56 41.8 119.2 -2.7 -43.6 120 281 06 12 01 06 15 00 1228+126 09 56 56 46.9 116.7 -2.6 -45.7 17 281 06 15 00 06 19 00 --- 10 00 57 47.6 117.7 -2.5 -45.2 240 289 06 15 01 06 19 40 1228+126 10 01 37 47.7 117.9 -2.5 -45.1 19 289 06 19 40 06 29 30 --- 10 11 28 49.4 120.5 -2.3 -43.7 590 308 06 19 41 Schedule for GBT_COLD (Code Gb ) Page 4 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 5 Feb 2014 Day 36 --- ---------- Space segment 07: K-band VLBI scans ---------- 06 30 00 1228+126 10 11 58 49.5 120.6 -2.3 -43.6 9 308 06 30 00 06 39 30 --- 10 21 30 51.1 123.3 -2.2 -42.1 570 326 06 30 01 06 40 00 1228+126 10 22 00 51.1 123.5 -2.2 -42.0 9 326 06 40 00 06 49 30 --- 10 31 32 52.7 126.3 -2.0 -40.3 570 344 06 40 01 06 50 00 1228+126 10 32 02 52.8 126.5 -2.0 -40.2 9 344 06 50 00 07 00 00 --- 10 42 03 54.3 129.6 -1.8 -38.1 600 363 06 50 01 ---------- GBT pointing scan. ---------- 07 01 00 1228+126 10 43 03 54.5 130.0 -1.8 -37.9 38 363 Stopped 07 14 30 --- 10 56 36 56.4 134.7 -1.6 -34.8 810 363 07 16 00 1228+126 10 58 06 56.6 135.2 -1.6 -34.4 68 363 07 16 00 07 25 10 --- 11 07 17 57.9 138.7 -1.4 -32.0 550 381 07 16 01 07 25 50 1228+126 11 07 58 57.9 139.0 -1.4 -31.8 18 381 07 25 50 07 35 00 --- 11 17 09 59.1 142.7 -1.2 -29.1 550 399 07 25 51 07 37 00 1236+077 11 19 09 54.0 144.3 -1.3 -27.5 76 399 07 37 00 07 39 00 --- 11 21 10 54.2 145.0 -1.3 -26.9 120 402 07 37 01 07 40 00 1226+023 11 22 10 50.4 152.9 -1.1 -21.0 7 402 07 40 00 07 50 00 --- 11 32 12 51.2 156.6 -1.0 -18.1 600 422 07 40 01 07 51 00 1228+126 11 33 12 60.8 149.7 -1.0 -23.9 2 422 07 51 00 08 02 00 --- 11 44 13 61.8 154.9 -0.8 -19.9 660 443 07 51 01 ---------- Space segment 08: K-band VLBI scans ---------- 08 15 00 1228+126 11 57 16 62.8 161.4 -0.6 -14.8 756 443 08 15 00 08 24 30 --- 12 06 47 63.3 166.4 -0.4 -10.8 570 461 08 15 01 08 25 00 1228+126 12 07 17 63.3 166.7 -0.4 -10.6 8 461 08 25 00 08 34 30 --- 12 16 49 63.7 171.9 -0.2 -6.5 570 479 08 25 01 08 35 00 1228+126 12 17 19 63.7 172.1 -0.2 -6.3 8 479 08 35 00 08 45 00 --- 12 27 21 63.9 177.7 -0.1 -1.9 600 499 08 35 01 Schedule for GBT_COLD (Code Gb ) Page 5 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 5 Feb 2014 Day 36 --- ---------- GBT pointing scan. ---------- 08 46 00 1228+126 12 28 21 63.9 178.2 -0.1 -1.4 38 499 Stopped 09 00 00 --- 12 42 23 63.8 186.0 0.2 4.8 840 499 ---------- K-band GRT-only VLBI scans - segment 09Ka ---------- Next scan frequencies: 4836.00 4836.00 4836.00 4836.00 Next BBC frequencies: 764.00 764.00 764.00 764.00 09 04 00 1236+077 12 46 24 59.0 183.0 0.1 2.4 198 499 09 04 00 09 06 00 --- 12 48 24 58.9 184.0 0.1 3.1 120 502 09 04 01 09 07 00 1228+126 12 49 24 63.6 189.8 0.3 7.9 15 502 09 07 00 09 17 00 --- 12 59 26 63.2 195.2 0.5 12.1 600 522 09 07 01 09 18 00 1236+077 13 00 26 58.7 189.7 0.3 7.6 14 522 09 18 00 09 20 00 --- 13 02 26 58.6 190.6 0.4 8.4 120 525 09 18 01 09 21 00 1228+126 13 03 26 62.9 197.3 0.5 13.8 12 525 09 21 00 09 31 00 --- 13 13 28 62.3 202.4 0.7 17.8 600 545 09 21 01 09 32 00 1236+077 13 14 28 58.0 196.2 0.6 12.8 12 545 09 32 00 09 34 00 --- 13 16 29 57.9 197.1 0.6 13.5 120 549 09 32 01 09 35 00 1228+126 13 17 29 62.0 204.4 0.8 19.4 9 549 09 35 00 09 45 00 --- 13 27 30 61.1 209.2 0.9 23.0 600 568 09 35 01 09 46 00 1236+077 13 28 31 57.1 202.5 0.8 17.6 10 568 09 46 00 09 48 00 --- 13 30 31 57.0 203.4 0.8 18.3 120 572 09 46 01 09 49 00 1228+126 13 31 31 60.7 211.1 1.0 24.4 8 572 09 49 00 09 59 00 --- 13 41 33 59.6 215.5 1.2 27.7 600 591 09 49 01 ---------- Space segment 09: K-band VLBI scans ---------- Next scan frequencies: 22236.00 22236.00 22236.00 22236.00 Next BBC frequencies: 800.00 800.00 800.00 800.00 10 20 00 1228+126 14 02 36 57.0 223.9 1.5 33.8 1236 591 10 20 00 10 29 30 --- 14 12 08 55.6 227.3 1.7 36.1 570 609 10 20 01 10 30 00 1228+126 14 12 38 55.6 227.5 1.7 36.2 9 609 10 30 00 10 39 30 --- 14 22 09 54.1 230.7 1.8 38.4 570 627 10 30 01 10 40 00 1228+126 14 22 39 54.1 230.9 1.9 38.5 9 627 10 40 00 10 49 30 --- 14 32 11 52.6 233.9 2.0 40.4 570 646 10 40 01 Schedule for GBT_COLD (Code Gb ) Page 6 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 5 Feb 2014 Day 36 --- 10 50 00 1228+126 14 32 41 52.5 234.0 2.0 40.5 9 646 10 50 00 10 59 30 --- 14 42 13 51.0 236.9 2.2 42.2 570 664 10 50 01 11 00 00 1228+126 14 42 43 50.9 237.0 2.2 42.3 9 664 11 00 00 11 09 30 --- 14 52 14 49.3 239.7 2.3 43.8 570 682 11 00 01 11 10 00 1228+126 14 52 44 49.2 239.8 2.4 43.9 9 682 11 10 00 11 20 00 --- 15 02 46 47.5 242.4 2.5 45.3 600 701 11 10 01 ---------- GBT pointing scan. ---------- 11 21 00 1228+126 15 03 46 47.3 242.7 2.5 45.4 39 701 Stopped 11 33 00 --- 15 15 48 45.2 245.6 2.7 46.9 720 701 11 37 30 1228+126 15 20 19 44.4 246.7 2.8 47.4 248 701 11 37 30 11 42 30 --- 15 25 20 43.5 247.8 2.9 47.9 300 711 11 37 31 11 53 30 1226+023 15 36 22 34.0 241.2 3.1 43.4 603 711 11 53 30 11 56 30 --- 15 39 22 33.5 241.8 3.2 43.7 180 717 11 53 31 12 08 00 1228+126 15 50 54 38.8 253.3 3.3 50.2 632 717 12 08 00 12 13 00 --- 15 55 55 37.8 254.2 3.4 50.5 300 726 12 08 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: ra1cm2.set Matching groups in ./gs032c_freq_sess313rdbe.dat: gbt1cm_a4 LO1=28.868, LO2=16.532, LO3=10.5 Setup group: 31 Station: GBT_COLD Total bit rate: 256 Format: MARK5B 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= 23036.00 23036.00 23036.00 23036.00 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 = B D B D The following frequency sets based on these setups were used. Frequency Set: 30 Setup file default. LO sum= 22236.00 22236.00 22236.00 22236.00 BBC fr= 800.00 800.00 800.00 800.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 30 Track assignments are: track1= 2, 4, 6, 8 barrel=roll_off ======== Setup file: ra6cm2.set Matching groups in ./gs032c_freq_sess313rdbe.dat: gbt6cmc2 LO1=7.832, LO2=12.732, LO3=10.5 Setup group: 4 Station: GBT_COLD Total bit rate: 256 Format: MARK5B 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= 5600.00 5600.00 5600.00 5600.00 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 The following frequency sets based on these setups were used. Frequency Set: 62 Setup file default. LO sum= 4836.00 4836.00 4836.00 4836.00 BBC fr= 764.00 764.00 764.00 764.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 62 Track assignments are: track1= 2, 4, 6, 8 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 48.003338 0.00 85 16 41.77889 * 85 00 00.00000 84 54 58.14016 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 08.812805 0.10 * 1236+077 07 46 45.39997 * 07 30 17.18902 07 25 28.10329 0.11 J1239+07 From catalog imbedded in main SCHED input file. rfc_2012b Petrov, 2012, unpublished 1855 observations * 1226+023 12 26 33.245835 * 12 29 06.699731 12 29 51.363058 0.00 J1229+0203 02 19 43.30547 * 02 03 08.59797 01 58 18.79035 0.00 3C273B ./gs032c_sources.radioastron 3C273 AGN, rfc_2013d Petrov, 2013, unpublished 32011 observations * 1228+126 12 28 17.569280 * 12 30 49.423382 12 31 33.520344 0.00 J1230+1223 12 40 01.74883 * 12 23 28.04365 12 18 35.78136 0.00 3C274 ./gs032c_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 ra6cm2.set 11 4.825 0.000 1236+077 ra6cm2.set 1 2 3 4 11 13 16 17 18 19 2 + 1.333 27.967 ra1cm2.set 5 8 9 10 14 15 21 25 26 28 + 1.200 31.800 ra2cm2.set 39 0.067 3.000 ra7mm2.set 49 0.067 3.000 1226+023 ra6cm2.set 1 2 3 4 11 13 16 17 18 19 2 + 1.550 39.583 ra1cm2.set 5 8 9 10 14 15 21 25 26 28 + 1.550 47.583 ra2cm2.set 39 0.050 2.250 ra7mm2.set 49 0.050 2.250 1228+126 ra6cm2.set 1 2 3 4 11 13 16 17 18 19 2 + 15.742 317.813 ra1cm2.set 5 8 9 10 14 15 21 25 26 28 + 14.357 328.818 ra2cm2.set 39 0.783 35.250 ra7mm2.set 49 0.783 35.250 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 109.8 1236+077 129.1 1226+023 130.0 1228+126 132.2 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