COVER INFORMATION Station: GBT_COLD (Code Gb ) Experiment: GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. Exp. Code: GK052 Schedule Version: 3.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Jae-Young Kim Address: Max Planck Institute for Radio Astronomy Auf dem Huegel 69 53121 Bonn Germany Phone: +49-228-525-387 EMAIL: jykim@mpifr-bonn.mpg.de Fax: +49-228-525-229 Phone during observation: +49-228-525-387 Observing mode: continuum global VLBI at 7mm Notes: Schedule for GBT_COLD (Code Gb ) Page 2 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- ---------- GBT pointing scan. ---------- Next scan frequencies: 43040.00 43040.00 43104.00 43104.00 43168.00 43168.00 43232.00 43232.00 Next BBC frequencies: 640.00 640.00 704.00 704.00 768.00 768.00 832.00 832.00 Next scan bandwidths: 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.00 03 30 00 1156+295 06 59 47 28.5 74.0 -5.0 -59.5 0 0 Stopped 03 36 30 --- 07 06 18 29.8 74.8 -4.9 -59.9 390 0 03 40 30 M87 07 10 18 15.1 86.1 -5.4 -53.1 163 0 03 40 30 03 45 30 --- 07 15 19 16.1 86.9 -5.3 -53.2 300 77 03 40 31 03 46 30 M87 07 16 19 16.3 87.1 -5.3 -53.2 39 77 03 46 30 03 51 30 --- 07 21 20 17.3 87.8 -5.2 -53.2 300 155 03 46 31 03 57 30 1156+295 07 27 21 33.8 77.5 -4.6 -61.1 282 155 03 57 30 04 00 30 --- 07 30 22 34.4 77.8 -4.5 -61.3 180 201 03 57 31 04 02 30 M87 07 32 22 19.4 89.5 -5.0 -53.3 44 201 04 02 30 04 07 30 --- 07 37 23 20.4 90.3 -4.9 -53.3 300 278 04 02 31 04 08 30 M87 07 38 23 20.6 90.5 -4.9 -53.3 39 278 04 08 30 04 13 30 --- 07 43 24 21.6 91.2 -4.8 -53.3 300 356 04 08 31 ---------- GBT pointing scan. ---------- 04 14 30 3C273 07 44 24 15.7 100.3 -4.8 -50.5 3 356 Stopped 04 21 00 --- 07 50 55 17.0 101.3 -4.7 -50.2 390 356 04 23 00 3C279 07 52 55 7.1 103.4 -5.1 -50.0 60 356 04 23 00 04 28 00 --- 07 57 56 8.1 104.2 -5.0 -49.8 300 433 04 23 01 ---------- Segment (C). Ef+Ys+Mh+KVN+GBT+VLBA (0430-0630) ---------- 04 30 00 M87 07 59 56 24.8 93.9 -4.5 -53.1 39 433 04 30 00 04 35 00 --- 08 04 57 25.8 94.7 -4.4 -53.0 300 510 04 30 01 04 36 00 M87 08 05 57 26.0 94.8 -4.4 -53.0 39 510 04 36 00 04 41 00 --- 08 10 58 27.0 95.7 -4.3 -52.9 300 587 04 36 01 04 47 00 1156+295 08 16 59 43.4 83.9 -3.7 -63.1 283 587 04 47 00 04 50 00 --- 08 20 00 43.9 84.3 -3.7 -63.2 180 634 04 47 01 04 52 00 M87 08 22 00 29.1 97.5 -4.2 -52.6 44 634 04 52 00 04 57 00 --- 08 27 01 30.1 98.4 -4.1 -52.5 300 711 04 52 01 Schedule for GBT_COLD (Code Gb ) Page 3 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- 04 58 00 M87 08 28 01 30.3 98.5 -4.1 -52.4 39 711 04 58 00 05 03 00 --- 08 33 02 31.2 99.4 -4.0 -52.3 300 788 04 58 01 ---------- GBT pointing scan. ---------- 05 04 00 3C273 08 34 02 25.1 108.9 -3.9 -47.9 1 788 Stopped 05 10 30 --- 08 40 33 26.3 110.1 -3.8 -47.4 390 788 05 13 30 M87 08 43 34 33.3 101.3 -3.8 -51.8 122 788 05 13 30 05 18 30 --- 08 48 34 34.2 102.2 -3.7 -51.6 300 866 05 13 31 05 24 30 3C279 08 54 35 18.6 113.9 -4.0 -46.1 279 866 05 24 30 05 27 30 --- 08 57 36 19.1 114.4 -4.0 -45.8 180 912 05 24 31 05 29 30 M87 08 59 36 36.3 104.3 -3.5 -51.0 37 912 05 29 30 05 34 30 --- 09 04 37 37.3 105.2 -3.5 -50.7 300 989 05 29 31 05 35 30 M87 09 05 37 37.5 105.4 -3.4 -50.6 39 989 05 35 30 05 40 30 --- 09 10 38 38.4 106.4 -3.4 -50.3 300 1067 05 35 31 ---------- GBT pointing scan. ---------- 05 41 30 3C273 09 11 38 31.9 116.3 -3.3 -44.6 0 1067 Stopped 05 48 00 --- 09 18 09 33.0 117.7 -3.2 -44.0 390 1067 05 51 00 M87 09 21 10 40.4 108.6 -3.2 -49.5 120 1067 05 51 00 05 56 00 --- 09 26 11 41.3 109.6 -3.1 -49.0 300 1144 05 51 01 05 57 00 M87 09 27 11 41.5 109.8 -3.1 -49.0 39 1144 05 57 00 06 02 00 --- 09 32 11 42.4 110.9 -3.0 -48.5 300 1221 05 57 01 06 08 00 3C279 09 38 12 26.1 122.3 -3.3 -41.7 277 1221 06 08 00 06 11 00 --- 09 41 13 26.6 122.9 -3.3 -41.4 180 1268 06 08 01 06 13 00 M87 09 43 13 44.4 113.4 -2.8 -47.4 35 1268 06 13 00 06 18 00 --- 09 48 14 45.3 114.6 -2.7 -46.8 300 1345 06 13 01 06 19 00 M87 09 49 14 45.5 114.8 -2.7 -46.7 39 1345 06 19 00 06 24 00 --- 09 54 15 46.4 116.0 -2.6 -46.1 300 1422 06 19 01 ---------- GBT pointing scan. Segment (D) (0630-0930) ---------- 06 30 00 3C273 10 00 16 40.0 127.5 -2.5 -38.4 298 1422 Stopped 06 36 30 --- 10 06 47 41.0 129.2 -2.4 -37.4 390 1422 Schedule for GBT_COLD (Code Gb ) Page 4 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- 06 38 30 M87 10 08 47 48.9 119.8 -2.4 -44.1 60 1422 06 38 30 06 43 30 --- 10 13 48 49.7 121.1 -2.3 -43.3 300 1499 06 38 31 06 44 30 M87 10 14 48 49.9 121.4 -2.3 -43.2 39 1499 06 44 30 06 49 30 --- 10 19 49 50.7 122.8 -2.2 -42.4 300 1577 06 44 31 06 55 30 1156+295 10 25 50 68.3 108.3 -1.6 -58.4 278 1577 06 55 30 06 58 30 --- 10 28 51 68.9 109.2 -1.5 -57.9 180 1623 06 55 31 07 00 30 M87 10 30 51 52.5 126.1 -2.0 -40.4 36 1623 07 00 30 07 05 30 --- 10 35 52 53.3 127.6 -1.9 -39.4 300 1700 07 00 31 07 06 30 M87 10 36 52 53.5 127.9 -1.9 -39.2 39 1700 07 06 30 07 11 30 --- 10 41 53 54.2 129.6 -1.8 -38.2 300 1778 07 06 31 ---------- GBT pointing scan. ---------- 07 12 31 3C273 10 42 54 46.1 139.5 -1.8 -30.6 0 1778 Stopped 07 18 31 --- 10 48 55 46.8 141.4 -1.7 -29.3 360 1778 07 20 30 3C279 10 50 54 36.9 139.4 -2.1 -30.8 60 1778 07 20 30 07 23 30 --- 10 53 55 37.3 140.2 -2.1 -30.3 180 1824 07 20 31 07 25 30 M87 10 55 55 56.3 134.4 -1.6 -35.0 31 1824 07 25 30 07 30 30 --- 11 00 56 57.0 136.2 -1.5 -33.7 300 1901 07 25 31 07 36 30 1156+295 11 06 57 75.5 126.0 -0.9 -46.5 275 1901 07 36 30 07 39 30 --- 11 09 58 76.0 127.8 -0.8 -45.1 180 1948 07 36 31 07 41 30 M87 11 11 58 58.4 140.5 -1.3 -30.7 35 1948 07 41 30 07 46 30 --- 11 16 59 59.0 142.5 -1.2 -29.2 300 2025 07 41 31 07 47 30 M87 11 17 59 59.1 143.0 -1.2 -28.9 38 2025 07 47 30 07 52 30 --- 11 23 00 59.7 145.1 -1.1 -27.3 300 2102 07 47 31 ---------- GBT pointing scan. ---------- 07 53 30 3C273 11 24 00 50.5 153.5 -1.1 -20.5 3 2102 Stopped 07 59 30 --- 11 30 01 51.0 155.7 -1.0 -18.8 360 2102 08 01 30 3C279 11 32 01 41.5 151.2 -1.4 -22.3 62 2102 08 01 30 08 04 30 --- 11 35 02 41.8 152.1 -1.4 -21.6 180 2149 08 01 31 08 06 30 M87 11 37 02 61.2 151.4 -0.9 -22.6 30 2149 08 06 30 08 11 30 --- 11 42 03 61.6 153.8 -0.8 -20.8 300 2226 08 06 31 Schedule for GBT_COLD (Code Gb ) Page 5 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- 08 17 30 1156+295 11 48 04 80.4 163.6 -0.2 -14.7 273 2226 08 17 30 08 20 30 --- 11 51 04 80.5 167.5 -0.2 -11.2 180 2272 08 17 31 08 22 30 M87 11 53 05 62.5 159.2 -0.6 -16.5 34 2272 08 22 30 08 27 30 --- 11 58 05 62.8 161.8 -0.6 -14.5 300 2350 08 22 31 08 28 30 M87 11 59 06 62.9 162.3 -0.5 -14.1 38 2350 08 28 30 08 33 30 --- 12 04 06 63.1 164.9 -0.5 -12.0 300 2427 08 28 31 ---------- GBT pointing scan. ---------- 08 34 30 3C273 12 05 07 53.1 169.6 -0.4 -8.1 0 2427 Stopped 08 40 30 --- 12 11 08 53.3 172.1 -0.3 -6.2 360 2427 08 42 30 3C279 12 13 08 44.5 164.6 -0.7 -12.1 65 2427 08 42 30 08 45 30 --- 12 16 08 44.7 165.6 -0.7 -11.3 180 2473 08 42 31 08 47 30 M87 12 18 09 63.7 172.5 -0.2 -6.0 31 2473 08 47 30 08 52 30 --- 12 23 10 63.8 175.3 -0.1 -3.8 300 2551 08 47 31 08 58 30 1156+295 12 29 10 79.0 214.8 0.5 30.8 208 2551 08 58 30 09 01 30 --- 12 32 11 78.6 217.6 0.5 33.2 180 2597 08 58 31 09 03 30 M87 12 34 11 63.9 181.4 0.0 1.1 -33 2597 09 04 03 09 08 30 --- 12 39 12 63.8 184.1 0.1 3.3 267 2666 09 03 31 09 09 30 M87 12 40 12 63.8 184.7 0.1 3.8 38 2666 09 09 30 09 14 30 --- 12 45 13 63.7 187.4 0.2 6.0 300 2743 09 09 31 09 20 30 1156+295 12 51 14 76.0 232.3 0.8 45.2 183 2743 09 20 30 09 23 30 --- 12 54 15 75.5 234.2 0.9 46.7 180 2789 09 20 31 09 24 00 1156+295 12 54 45 75.4 234.5 0.9 46.9 8 2789 09 24 00 09 27 00 --- 12 57 45 74.9 236.2 1.0 48.2 180 2836 09 24 01 ---------- GBT pointing scan. ---------- 09 30 00 3C273 13 00 46 52.8 192.8 0.5 10.0 1 2836 Stopped 09 36 00 --- 13 06 47 52.6 195.2 0.6 11.9 360 2836 09 38 00 3C279 13 08 47 45.6 184.1 0.2 3.3 54 2836 09 38 00 09 41 00 --- 13 11 47 45.5 185.2 0.2 4.1 180 2882 09 38 01 09 43 00 M87 13 13 48 62.2 202.5 0.7 17.9 35 2882 09 43 00 09 48 00 --- 13 18 49 61.8 205.0 0.8 19.8 300 2959 09 43 01 Schedule for GBT_COLD (Code Gb ) Page 6 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- 09 49 00 M87 13 19 49 61.8 205.5 0.8 20.2 38 2959 09 49 00 09 54 00 --- 13 24 50 61.3 207.9 0.9 22.0 300 3037 09 49 01 09 57 30 1156+295 13 28 20 69.6 249.5 1.5 57.2 38 3037 09 57 30 10 00 30 --- 13 31 21 69.0 250.5 1.5 57.7 180 3083 09 57 31 10 04 00 M87 13 34 51 60.3 212.5 1.1 25.5 48 3083 10 04 00 10 09 00 --- 13 39 52 59.8 214.7 1.1 27.1 300 3160 10 04 01 10 10 00 M87 13 40 52 59.7 215.1 1.2 27.4 38 3160 10 10 00 10 15 00 --- 13 45 53 59.1 217.2 1.2 29.0 300 3238 10 10 01 ---------- GBT pointing scan. ---------- 10 16 00 3C273 13 46 53 49.5 210.4 1.3 23.4 2 3238 Stopped 10 22 00 --- 13 52 54 48.9 212.5 1.4 24.9 360 3238 10 24 00 3C279 13 54 55 43.7 200.1 1.0 15.7 49 3238 10 24 00 10 27 00 --- 13 57 55 43.5 201.1 1.0 16.4 180 3284 10 24 01 10 29 00 M87 13 59 55 57.3 222.8 1.5 33.0 19 3284 10 29 00 10 34 00 --- 14 04 56 56.6 224.7 1.6 34.3 300 3361 10 29 01 10 35 00 M87 14 05 56 56.5 225.0 1.6 34.6 38 3361 10 35 00 10 40 00 --- 14 10 57 55.8 226.8 1.7 35.8 300 3439 10 35 01 10 42 30 1156+295 14 13 28 61.0 261.4 2.2 62.5 3 3439 10 42 30 10 45 30 --- 14 16 28 60.4 262.0 2.3 62.6 180 3485 10 42 31 10 48 00 M87 14 18 58 54.6 229.6 1.8 37.6 9 3485 10 48 00 10 53 00 --- 14 23 59 53.9 231.2 1.9 38.7 300 3562 10 48 01 10 54 00 M87 14 24 59 53.7 231.6 1.9 38.9 39 3562 10 54 00 10 59 00 --- 14 30 00 52.9 233.1 2.0 39.9 300 3640 10 54 01 ---------- GBT pointing scan. ---------- 11 00 00 3C273 14 31 00 44.2 224.6 2.0 33.4 4 3640 Stopped 11 06 00 --- 14 37 01 43.4 226.4 2.1 34.6 360 3640 11 08 00 3C279 14 39 02 39.8 213.8 1.7 26.0 49 3640 11 08 00 11 11 00 --- 14 42 02 39.4 214.7 1.7 26.6 180 3686 11 08 01 11 13 00 M87 14 44 03 50.7 237.3 2.2 42.4 15 3686 11 13 00 11 18 00 --- 14 49 03 49.9 238.7 2.3 43.2 300 3763 11 13 01 Schedule for GBT_COLD (Code Gb ) Page 7 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- 11 19 00 M87 14 50 04 49.7 239.0 2.3 43.4 39 3763 11 19 00 11 24 00 --- 14 55 04 48.8 240.3 2.4 44.2 300 3841 11 19 01 11 26 30 1156+295 14 57 35 52.4 269.3 3.0 63.7 22 3841 11 26 30 11 29 30 --- 15 00 35 51.8 269.8 3.0 63.7 180 3887 11 26 31 11 32 00 M87 15 03 06 47.5 242.4 2.5 45.3 27 3887 11 32 00 11 37 00 --- 15 08 07 46.6 243.7 2.6 45.9 300 3964 11 32 01 11 38 00 M87 15 09 07 46.4 243.9 2.6 46.1 39 3964 11 38 00 11 43 00 --- 15 14 08 45.5 245.2 2.7 46.7 300 4042 11 38 01 ---------- GBT pointing scan. ---------- 11 44 00 3C273 15 15 08 37.6 236.3 2.8 40.7 3 4042 Stopped 11 50 00 --- 15 21 09 36.6 237.7 2.9 41.5 360 4042 11 52 00 3C279 15 23 09 34.2 225.7 2.4 34.3 51 4042 11 52 00 11 55 00 --- 15 26 09 33.8 226.5 2.5 34.8 180 4088 11 52 01 11 57 00 M87 15 28 10 43.0 248.4 2.9 48.2 17 4088 11 57 00 12 02 00 --- 15 33 11 42.1 249.5 3.0 48.7 300 4165 11 57 01 12 03 00 M87 15 34 11 41.9 249.7 3.0 48.8 39 4165 12 03 00 12 08 00 --- 15 39 12 41.0 250.8 3.1 49.2 300 4243 12 03 01 12 10 30 1156+295 15 41 42 43.8 275.8 3.7 63.2 37 4243 12 10 30 12 13 30 --- 15 44 43 43.2 276.2 3.7 63.1 180 4289 12 10 31 12 16 00 M87 15 47 13 39.5 252.4 3.3 49.9 40 4289 12 16 00 12 21 00 --- 15 52 14 38.5 253.5 3.3 50.2 300 4366 12 16 01 12 22 00 M87 15 53 14 38.3 253.7 3.4 50.3 39 4366 12 22 00 12 27 00 --- 15 58 15 37.4 254.6 3.4 50.6 300 4443 12 22 01 ---------- GBT pointing scan. ---------- 12 28 00 3C273 15 59 15 30.0 245.9 3.5 45.7 3 4443 Stopped 12 34 00 --- 16 05 16 28.9 247.1 3.6 46.2 360 4443 12 36 00 3C279 16 07 16 27.5 235.8 3.2 40.7 54 4443 12 36 00 12 39 00 --- 16 10 17 27.0 236.5 3.2 41.0 180 4490 12 36 01 12 41 00 M87 16 12 17 34.7 257.3 3.7 51.5 21 4490 12 41 00 12 46 00 --- 16 17 18 33.8 258.2 3.8 51.7 300 4567 12 41 01 Schedule for GBT_COLD (Code Gb ) Page 8 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- 12 47 00 M87 16 18 18 33.6 258.4 3.8 51.8 39 4567 12 47 00 12 52 00 --- 16 23 19 32.6 259.3 3.9 52.0 300 4644 12 47 01 12 54 30 1156+295 16 25 49 35.3 281.6 4.4 61.5 46 4644 12 54 30 12 57 30 --- 16 28 50 34.7 281.9 4.5 61.3 180 4691 12 54 31 13 00 00 M87 16 31 20 31.1 260.7 4.0 52.3 49 4691 13 00 00 13 05 00 --- 16 36 21 30.1 261.6 4.1 52.5 300 4768 13 00 01 13 06 00 M87 16 37 21 29.9 261.8 4.1 52.5 39 4768 13 06 00 13 11 00 --- 16 42 22 28.9 262.6 4.2 52.7 300 4845 13 06 01 ---------- GBT pointing scan. ---------- 13 12 00 3C273 16 43 22 21.9 254.2 4.2 49.0 4 4845 Stopped 13 18 00 --- 16 49 23 20.7 255.3 4.3 49.3 360 4845 13 20 00 3C279 16 51 23 20.0 244.6 3.9 45.4 56 4845 13 20 00 13 23 00 --- 16 54 24 19.5 245.2 4.0 45.6 180 4892 13 20 01 13 25 00 M87 16 56 24 26.2 265.0 4.4 53.0 25 4892 13 25 00 13 30 00 --- 17 01 25 25.2 265.8 4.5 53.1 300 4969 13 25 01 13 31 00 M87 17 02 25 25.0 265.9 4.5 53.1 39 4969 13 31 00 13 36 00 --- 17 07 26 24.1 266.8 4.6 53.2 300 5046 13 31 01 13 38 30 1156+295 17 09 56 26.9 287.1 5.2 59.0 53 5046 13 38 30 13 41 30 --- 17 12 57 26.3 287.5 5.2 58.8 180 5093 13 38 31 13 44 00 M87 17 15 27 22.5 268.0 4.7 53.2 55 5093 13 44 00 13 49 00 --- 17 20 28 21.5 268.8 4.8 53.3 300 5170 13 44 01 13 50 00 M87 17 21 28 21.3 269.0 4.8 53.3 39 5170 13 50 00 13 55 00 --- 17 26 29 20.3 269.8 4.9 53.3 300 5247 13 50 01 ---------- GBT pointing scan. ---------- 13 56 00 3C273 17 27 29 13.4 261.7 5.0 50.9 6 5247 Stopped 14 02 00 --- 17 33 30 12.3 262.7 5.1 51.0 360 5247 14 04 00 3C279 17 35 31 12.0 252.4 4.6 48.6 57 5247 14 04 00 14 07 00 --- 17 38 31 11.4 252.9 4.7 48.8 180 5294 14 04 01 14 09 00 M87 17 40 31 17.6 271.9 5.1 53.2 28 5294 14 09 00 14 14 00 --- 17 45 32 16.6 272.7 5.2 53.2 300 5371 14 09 01 Schedule for GBT_COLD (Code Gb ) Page 9 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- 14 15 00 M87 17 46 32 16.4 272.9 5.2 53.2 39 5371 14 15 00 14 20 00 --- 17 51 33 15.4 273.6 5.3 53.1 300 5448 14 15 01 14 22 30 1156+295 17 54 04 18.8 292.8 5.9 55.8 57 5448 14 22 30 14 25 30 --- 17 57 04 18.2 293.2 5.9 55.6 180 5495 14 22 31 14 28 00 M87 17 59 35 13.8 274.8 5.5 53.0 59 5495 14 28 00 14 33 00 --- 18 04 35 12.9 275.6 5.5 52.9 300 5572 14 28 01 14 34 00 M87 18 05 36 12.7 275.7 5.6 52.9 39 5572 14 34 00 14 39 00 --- 18 10 36 11.7 276.5 5.6 52.8 300 5649 14 34 01 14 53 00 M87 18 24 39 9.0 278.6 5.9 52.4 818 5649 14 53 00 14 58 00 --- 18 29 40 8.0 279.4 6.0 52.3 300 5727 14 53 01 14 59 00 M87 18 30 40 7.8 279.5 6.0 52.2 39 5727 14 59 00 15 04 00 --- 18 35 41 6.8 280.3 6.1 52.1 300 5804 14 59 01 15 06 30 1156+295 18 38 11 11.0 298.6 6.6 51.9 60 5804 15 06 30 15 09 30 --- 18 41 11 10.5 299.0 6.7 51.6 180 5850 15 06 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess317.Q2048glob Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq_RDBE.dat: gbt7mm_c8 LO1=37.168, LO2=15.732, LO3=10.5 Setup group: 1 Station: GBT_COLD Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 8 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 Net SB= U U U U U U U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = A C A C A C A C The following frequency sets based on these setups were used. Frequency Set: 7 Setup file default. Used with PCAL = 1MHz LO sum= 43040.00 43040.00 43104.00 43104.00 43168.00 43168.00 43232.00 43232.00 BBC fr= 640.00 640.00 704.00 704.00 768.00 768.00 832.00 832.00 Bandwd= 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.00 VLBA legacy crd files using 4 channels based on RDBE channels: 3 4 5 6 CRD fr= 727.99 727.99 791.99 791.99 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 7 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) J0319+4130 03 16 29.567260 * 03 19 48.160090 03 20 59.919769 1.30 0316+413 41 19 51.91699 * 41 30 42.10412 41 34 35.77274 2.72 * 3C84 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul J0319+41 GSFC 2011B astro solution 9957 Observations J1159+2914 11 56 57.786211 * 11 59 31.833912 12 00 27.537682 0.11 * 1156+295 29 31 25.73868 * 29 14 43.82678 29 08 33.24702 0.10 J1159+29 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul rfc_2012b Petrov, 2012, unpublished 64535 observations J1229+0203 12 26 33.245833 * 12 29 06.699729 12 30 02.260907 1.05 * 3C273 02 19 43.30578 * 02 03 08.59828 01 57 08.02652 1.38 3C273B /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul 1226+023 GSFC 2011B astro solution 31886 Observations J1229+02 J1230+1223 12 28 17.569280 * 12 30 49.423382 12 31 44.309734 0.10 3C274 12 40 01.74884 * 12 23 28.04366 12 17 24.96557 0.10 1228+126 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul J1230+12 rfc_2012b Petrov, 2012, unpublished 47163 observations * M87 J1256-0547 12 53 35.831299 * 12 56 11.166567 12 57 07.355951 0.69 * 3C279 -05 31 07.99595 *-05 47 21.52481 -05 53 10.97901 0.92 1253-055 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul J1256-05 GSFC 2011B astro solution 7402 Observations J1331+3030 13 28 49.657778 * 13 31 08.288070 13 31 58.008621 0.20 * 3C286 30 45 58.64061 * 30 30 32.95925 30 24 50.96806 0.19 1328+307 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul J1331+30 rfc_2012b Petrov, 2012, unpublished 542 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 3C84 sess317.Q2048glob 17 0.117 0.000 ps/vla_x_pointing.set 18 0.167 0.000 1156+295 sess317.Q2048glob 1 2 3 4 7 8 17 1.683 81.008 3C273 ps/vla_x_pointing.set 18 1.283 0.000 M87 sess317.Q2048glob 1 2 3 4 7 8 17 8.875 395.469 3C279 sess317.Q2048glob 1 2 3 4 7 8 17 1.300 47.667 3C286 sess317.Q2048glob 17 0.233 0.000 ps/vla_x_pointing.set 18 0.267 0.000 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) 3C84 104.2 1156+295 137.7 3C273 127.2 M87 129.6 3C279 118.0 3C286 117.9 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