COVER INFORMATION Station: JODRELL2 (Code Jb ) Experiment: Probing the radio jets in GRS1915+105 in a new puzzling accretion state Exp. Code: EM144A Schedule Version: 2.50 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: S.E.Motta Address: INAF - Osservatorio Astronomico di Brera Via E. Bianchi 46, I-23807 Merate Italy Phone: +39 3339445713 EMAIL: sara.motta@inaf.it Fax: Phone during observation: +39 3339445713 Observing mode: EVN, 6 GHz continuum Notes: Target (phase ref): GRS 1915+105 (J1905+0952) Fringe finders: J1800+3848, J2253+1608 Check source: J1913+0932 Schedule for JODRELL2 (Code Jb ) Page 2 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- Next scan frequencies: 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 833.51 833.51 833.51 833.51 769.51 769.51 769.51 769.51 705.51 705.51 705.51 705.51 641.51 641.51 641.51 641.51 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 12 30 00 J1800+3848 14 57 56 55.8 96.1 -3.1 -49.8 0 0 12 30 00 12 35 00 =1758+388 15 02 57 56.6 97.3 -3.0 -49.6 300 77 12 30 01 12 37 00 J1905+0952 15 04 57 25.4 108.5 -4.0 -35.2 9 77 12 37 00 12 39 30 =1903+097 15 07 27 25.7 109.1 -4.0 -35.1 150 116 12 37 01 12 39 30 GRS1915 15 07 27 25.3 106.2 -4.1 -35.8 -28 116 No stop 12 43 00 --- 15 10 58 25.8 107.0 -4.1 -35.7 182 170 12 39 31 12 43 00 J1905+0952 15 10 58 26.2 109.8 -3.9 -34.9 -29 170 No stop 12 45 30 =1903+097 15 13 28 26.6 110.4 -3.9 -34.7 121 209 12 43 01 12 45 30 GRS1915 15 13 28 26.1 107.6 -4.0 -35.5 -28 209 No stop 12 49 00 --- 15 16 59 26.6 108.4 -4.0 -35.4 182 263 12 45 31 12 49 40 J1905+0952 15 17 39 27.2 111.4 -3.8 -34.5 11 263 12 49 40 12 51 30 =1903+097 15 19 29 27.4 111.8 -3.8 -34.3 110 291 12 49 41 12 51 30 GRS1915 15 19 29 27.0 108.9 -3.9 -35.2 -28 291 No stop 12 55 00 --- 15 23 00 27.5 109.7 -3.9 -35.0 182 345 12 51 31 12 55 00 J1905+0952 15 23 00 27.9 112.6 -3.7 -34.1 -29 345 No stop 12 57 30 =1903+097 15 25 30 28.3 113.2 -3.7 -34.0 121 384 12 55 01 12 57 30 GRS1915 15 25 30 27.8 110.3 -3.8 -34.9 -28 384 No stop 13 01 00 --- 15 29 01 28.3 111.1 -3.8 -34.7 182 438 12 57 31 13 01 40 J1905+0952 15 29 41 28.8 114.1 -3.6 -33.7 11 438 13 01 40 13 03 30 =1903+097 15 31 31 29.1 114.6 -3.6 -33.5 110 466 13 01 41 13 03 30 GRS1915 15 31 31 28.7 111.7 -3.7 -34.5 -28 466 No stop 13 07 00 --- 15 35 02 29.2 112.5 -3.7 -34.3 182 520 13 03 31 13 07 00 J1905+0952 15 35 02 29.6 115.4 -3.5 -33.3 -30 520 No stop 13 09 30 =1903+097 15 37 32 29.9 116.0 -3.5 -33.1 120 559 13 07 01 13 09 30 GRS1915 15 37 32 29.5 113.1 -3.6 -34.1 -29 559 No stop 13 13 00 --- 15 41 03 30.0 113.9 -3.6 -33.9 181 613 13 09 31 Schedule for JODRELL2 (Code Jb ) Page 3 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 13 13 40 J1905+0952 15 41 43 30.5 117.0 -3.4 -32.8 10 613 13 13 40 13 15 30 =1903+097 15 43 33 30.7 117.4 -3.4 -32.6 110 642 13 13 41 13 15 30 GRS1915 15 43 33 30.3 114.5 -3.5 -33.7 -29 642 No stop 13 19 00 --- 15 47 04 30.8 115.3 -3.5 -33.4 181 696 13 15 31 13 19 00 J1905+0952 15 47 04 31.2 118.3 -3.3 -32.3 -30 696 No stop 13 21 30 =1903+097 15 49 34 31.5 118.9 -3.3 -32.1 120 734 13 19 01 13 21 30 GRS1915 15 49 34 31.1 115.9 -3.4 -33.3 -29 734 No stop 13 25 00 --- 15 53 05 31.6 116.8 -3.4 -33.0 181 788 13 21 31 13 25 40 J1905+0952 15 53 45 32.0 119.9 -3.2 -31.8 10 788 13 25 40 13 27 30 =1903+097 15 55 35 32.3 120.4 -3.2 -31.6 110 817 13 25 41 13 27 30 J1913+0932 15 55 35 31.0 118.7 -3.3 -32.2 -22 817 No stop 13 30 00 --- 15 58 06 31.3 119.3 -3.3 -32.0 128 855 13 27 31 13 30 40 J1905+0952 15 58 46 32.7 121.2 -3.1 -31.3 17 855 13 30 40 13 32 40 =1903+097 16 00 46 33.0 121.7 -3.1 -31.1 120 886 13 30 41 13 32 40 GRS1915 16 00 46 32.6 118.6 -3.3 -32.4 -29 886 No stop 13 36 10 --- 16 04 17 33.1 119.5 -3.2 -32.1 181 940 13 32 41 13 36 10 J1905+0952 16 04 17 33.4 122.6 -3.0 -30.8 -30 940 No stop 13 38 40 =1903+097 16 06 47 33.7 123.2 -3.0 -30.6 120 979 13 36 11 13 38 40 GRS1915 16 06 47 33.4 120.1 -3.2 -31.8 -29 979 No stop 13 42 10 --- 16 10 18 33.9 121.0 -3.1 -31.5 181 1033 13 38 41 13 42 50 J1905+0952 16 10 58 34.2 124.3 -2.9 -30.1 10 1033 13 42 50 13 44 40 =1903+097 16 12 48 34.5 124.7 -2.9 -30.0 110 1061 13 42 51 13 44 40 GRS1915 16 12 48 34.2 121.6 -3.1 -31.3 -29 1061 No stop 13 48 10 --- 16 16 19 34.6 122.5 -3.0 -30.9 181 1116 13 44 41 13 48 10 J1905+0952 16 16 19 34.9 125.7 -2.8 -29.6 -30 1116 No stop 13 50 40 =1903+097 16 18 49 35.2 126.3 -2.8 -29.3 120 1154 13 48 11 13 50 40 GRS1915 16 18 49 35.0 123.2 -3.0 -30.7 -29 1154 No stop 13 54 10 --- 16 22 20 35.4 124.1 -2.9 -30.3 181 1208 13 50 41 13 54 50 J1905+0952 16 23 00 35.7 127.4 -2.7 -28.9 9 1208 13 54 50 13 56 40 =1903+097 16 24 50 35.9 127.9 -2.7 -28.6 110 1237 13 54 51 Schedule for JODRELL2 (Code Jb ) Page 4 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 13 56 40 GRS1915 16 24 50 35.7 124.7 -2.9 -30.1 -30 1237 No stop 14 00 10 --- 16 28 21 36.1 125.7 -2.8 -29.7 180 1291 13 56 41 14 00 10 J1905+0952 16 28 21 36.3 128.8 -2.6 -28.2 -31 1291 No stop 14 02 40 =1903+097 16 30 51 36.6 129.5 -2.6 -27.9 119 1329 14 00 11 14 02 40 GRS1915 16 30 51 36.4 126.3 -2.8 -29.4 -30 1329 No stop 14 06 10 --- 16 34 22 36.9 127.3 -2.7 -29.0 180 1384 14 02 41 14 06 50 J1905+0952 16 35 02 37.1 130.7 -2.5 -27.4 9 1384 14 06 50 14 08 40 =1903+097 16 36 52 37.3 131.2 -2.5 -27.2 110 1412 14 06 51 14 08 40 GRS1915 16 36 52 37.2 127.9 -2.7 -28.7 -30 1412 No stop 14 12 10 --- 16 40 23 37.6 128.9 -2.6 -28.3 180 1466 14 08 41 14 12 10 J1905+0952 16 40 23 37.7 132.1 -2.4 -26.8 -31 1466 No stop 14 14 40 =1903+097 16 42 53 38.0 132.8 -2.4 -26.5 119 1505 14 12 11 14 14 40 GRS1915 16 42 53 37.9 129.6 -2.6 -28.0 -30 1505 No stop 14 18 10 --- 16 46 24 38.3 130.5 -2.5 -27.6 180 1559 14 14 41 14 18 50 J1905+0952 16 47 04 38.4 134.0 -2.3 -25.9 9 1559 14 18 50 14 20 40 =1903+097 16 48 54 38.6 134.5 -2.3 -25.7 110 1587 14 18 51 14 20 40 J1913+0932 16 48 54 37.5 132.5 -2.4 -26.6 -24 1587 No stop 14 23 10 --- 16 51 24 37.8 133.2 -2.4 -26.2 126 1626 14 20 41 14 23 50 J1905+0952 16 52 04 39.0 135.4 -2.2 -25.2 15 1626 14 23 50 14 25 50 =1903+097 16 54 05 39.2 136.0 -2.2 -25.0 120 1657 14 23 51 14 25 50 GRS1915 16 54 05 39.1 132.7 -2.4 -26.6 -30 1657 No stop 14 29 20 --- 16 57 35 39.5 133.7 -2.3 -26.2 180 1711 14 25 51 14 29 20 J1905+0952 16 57 35 39.5 137.0 -2.2 -24.5 -32 1711 No stop 14 31 50 =1903+097 17 00 06 39.8 137.8 -2.1 -24.1 118 1749 14 29 21 14 31 50 GRS1915 17 00 06 39.8 134.4 -2.3 -25.8 -30 1749 No stop 14 35 20 --- 17 03 36 40.1 135.4 -2.2 -25.3 180 1803 14 31 51 14 36 00 J1905+0952 17 04 16 40.2 139.0 -2.0 -23.5 8 1803 14 36 00 14 37 50 =1903+097 17 06 07 40.4 139.5 -2.0 -23.2 110 1832 14 36 01 14 37 50 GRS1915 17 06 07 40.4 136.1 -2.2 -25.0 -30 1832 No stop 14 41 20 --- 17 09 37 40.8 137.2 -2.1 -24.5 180 1886 14 37 51 Schedule for JODRELL2 (Code Jb ) Page 5 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 14 41 20 J1905+0952 17 09 37 40.7 140.6 -2.0 -22.7 -32 1886 No stop 14 43 50 =1903+097 17 12 08 40.9 141.3 -1.9 -22.3 118 1925 14 41 21 14 43 50 GRS1915 17 12 08 41.0 137.9 -2.1 -24.1 -31 1925 No stop 14 47 20 --- 17 15 38 41.4 139.0 -2.0 -23.6 179 1979 14 43 51 14 48 00 J1905+0952 17 16 18 41.3 142.6 -1.8 -21.7 8 1979 14 48 00 14 49 50 =1903+097 17 18 09 41.5 143.2 -1.8 -21.4 110 2007 14 48 01 14 49 50 GRS1915 17 18 09 41.6 139.7 -2.0 -23.2 -31 2007 No stop 14 53 20 --- 17 21 39 41.9 140.8 -1.9 -22.7 179 2061 14 49 51 14 53 20 J1905+0952 17 21 39 41.8 144.2 -1.7 -20.8 -32 2061 No stop 14 55 50 =1903+097 17 24 10 42.0 145.0 -1.7 -20.4 118 2100 14 53 21 14 55 50 GRS1915 17 24 10 42.2 141.5 -1.9 -22.3 -31 2100 No stop 14 59 20 --- 17 27 40 42.5 142.6 -1.8 -21.7 179 2154 14 55 51 15 00 00 J1905+0952 17 28 20 42.4 146.3 -1.6 -19.7 8 2154 15 00 00 15 01 50 =1903+097 17 30 11 42.5 146.9 -1.6 -19.4 110 2182 15 00 01 15 01 50 GRS1915 17 30 11 42.7 143.4 -1.8 -21.3 -31 2182 No stop 15 05 20 --- 17 33 41 43.0 144.5 -1.7 -20.7 179 2236 15 01 51 15 05 20 J1905+0952 17 33 41 42.8 148.0 -1.5 -18.8 -32 2236 No stop 15 07 50 =1903+097 17 36 12 43.0 148.8 -1.5 -18.3 118 2275 15 05 21 15 07 50 GRS1915 17 36 12 43.3 145.3 -1.7 -20.3 -31 2275 No stop 15 11 20 --- 17 39 42 43.5 146.4 -1.6 -19.7 179 2329 15 07 51 15 12 00 J1905+0952 17 40 22 43.3 150.2 -1.4 -17.6 8 2329 15 12 00 15 13 50 =1903+097 17 42 13 43.5 150.7 -1.4 -17.3 110 2357 15 12 01 15 13 50 J1913+0932 17 42 13 42.6 148.4 -1.5 -18.5 -26 2357 No stop 15 16 20 --- 17 44 43 42.8 149.2 -1.5 -18.1 124 2396 15 13 51 15 17 00 J1905+0952 17 45 23 43.7 151.8 -1.4 -16.7 13 2396 15 17 00 15 19 00 =1903+097 17 47 24 43.8 152.4 -1.3 -16.3 120 2427 15 17 01 15 19 00 GRS1915 17 47 24 44.2 148.9 -1.5 -18.4 -31 2427 No stop 15 22 30 --- 17 50 54 44.4 150.0 -1.4 -17.7 179 2481 15 19 01 15 22 30 J1905+0952 17 50 54 44.1 153.6 -1.3 -15.7 -33 2481 No stop 15 25 00 =1903+097 17 53 25 44.2 154.4 -1.2 -15.2 117 2520 15 22 31 Schedule for JODRELL2 (Code Jb ) Page 6 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 15 25 00 GRS1915 17 53 25 44.6 150.8 -1.4 -17.3 -31 2520 No stop 15 28 30 --- 17 56 55 44.9 152.0 -1.3 -16.6 179 2574 15 25 01 15 29 10 J1905+0952 17 57 35 44.5 155.8 -1.2 -14.4 7 2574 15 29 10 15 31 00 =1903+097 17 59 26 44.6 156.4 -1.1 -14.1 110 2602 15 29 11 15 31 00 GRS1915 17 59 26 45.0 152.8 -1.3 -16.2 -31 2602 No stop 15 34 30 --- 18 02 56 45.3 154.0 -1.2 -15.5 179 2656 15 31 01 15 34 30 J1905+0952 18 02 56 44.8 157.6 -1.1 -13.4 -33 2656 No stop 15 37 00 =1903+097 18 05 27 45.0 158.5 -1.0 -12.9 117 2695 15 34 31 15 37 00 GRS1915 18 05 27 45.4 154.9 -1.2 -15.0 -31 2695 No stop 15 40 30 --- 18 08 57 45.7 156.1 -1.1 -14.3 179 2749 15 37 01 15 41 10 J1905+0952 18 09 37 45.2 159.9 -1.0 -12.1 7 2749 15 41 10 15 43 00 =1903+097 18 11 27 45.3 160.5 -0.9 -11.7 110 2777 15 41 11 15 43 00 GRS1915 18 11 27 45.8 156.9 -1.1 -13.8 -31 2777 No stop 15 46 30 --- 18 14 58 46.0 158.1 -1.0 -13.1 179 2831 15 43 01 15 46 30 J1905+0952 18 14 58 45.4 161.7 -0.9 -11.0 -33 2831 No stop 15 49 00 =1903+097 18 17 28 45.6 162.6 -0.8 -10.5 117 2870 15 46 31 15 49 00 GRS1915 18 17 28 46.1 159.0 -1.0 -12.6 -31 2870 No stop 15 52 30 --- 18 20 59 46.3 160.2 -0.9 -11.9 179 2924 15 49 01 15 53 10 J1905+0952 18 21 39 45.7 164.0 -0.7 -9.6 7 2924 15 53 10 15 55 00 =1903+097 18 23 29 45.8 164.7 -0.7 -9.2 110 2953 15 53 11 15 55 00 GRS1915 18 23 29 46.5 161.1 -0.9 -11.4 -31 2953 No stop 15 58 30 --- 18 27 00 46.6 162.3 -0.8 -10.7 179 3007 15 55 01 15 58 30 J1905+0952 18 27 00 45.9 165.9 -0.7 -8.5 -33 3007 No stop 16 01 00 =1903+097 18 29 30 46.0 166.8 -0.6 -8.0 117 3045 15 58 31 16 01 00 GRS1915 18 29 30 46.7 163.2 -0.8 -10.2 -31 3045 No stop 16 04 30 --- 18 33 01 46.9 164.4 -0.7 -9.4 179 3099 16 01 01 16 05 10 J1905+0952 18 33 41 46.2 168.2 -0.5 -7.1 7 3099 16 05 10 16 07 00 =1903+097 18 35 31 46.2 168.9 -0.5 -6.7 110 3128 16 05 11 16 07 00 J1913+0932 18 35 31 45.7 166.2 -0.6 -8.3 -27 3128 No stop 16 09 30 --- 18 38 02 45.7 167.1 -0.6 -7.8 123 3166 16 07 01 Schedule for JODRELL2 (Code Jb ) Page 7 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 16 10 00 J1800+3848 18 38 32 74.2 207.8 0.6 21.0 -119 3166 16 10 00 16 15 00 =1758+388 18 43 33 73.8 211.1 0.7 23.3 181 3244 16 10 01 16 15 40 J1905+0952 18 44 13 46.4 172.0 -0.4 -4.9 -98 3244 16 15 40 16 17 40 =1903+097 18 46 13 46.5 172.7 -0.3 -4.4 22 3275 16 15 41 16 17 40 GRS1915 18 46 13 47.3 169.1 -0.5 -6.6 -31 3275 No stop 16 21 10 --- 18 49 44 47.4 170.4 -0.4 -5.8 179 3329 16 17 41 16 21 10 J1905+0952 18 49 44 46.5 173.9 -0.3 -3.7 -33 3329 No stop 16 23 40 =1903+097 18 52 14 46.6 174.8 -0.2 -3.1 117 3367 16 21 11 16 23 40 GRS1915 18 52 14 47.5 171.3 -0.4 -5.3 -31 3367 No stop 16 27 10 --- 18 55 45 47.6 172.6 -0.3 -4.5 179 3421 16 23 41 16 27 50 J1905+0952 18 56 25 46.6 176.3 -0.2 -2.2 8 3421 16 27 50 16 29 40 =1903+097 18 58 15 46.6 177.0 -0.1 -1.8 110 3450 16 27 51 16 29 40 GRS1915 18 58 15 47.6 173.5 -0.3 -4.0 -31 3450 No stop 16 33 10 --- 19 01 46 47.7 174.8 -0.2 -3.2 179 3504 16 29 41 16 33 10 J1905+0952 19 01 46 46.7 178.3 -0.1 -1.1 -32 3504 No stop 16 35 40 =1903+097 19 04 16 46.7 179.2 -0.0 -0.5 118 3543 16 33 11 16 35 40 GRS1915 19 04 16 47.7 175.7 -0.2 -2.6 -31 3543 No stop 16 39 10 --- 19 07 47 47.7 176.9 -0.1 -1.9 179 3597 16 35 41 16 39 50 J1905+0952 19 08 27 46.7 180.7 0.0 0.4 8 3597 16 39 50 16 41 40 =1903+097 19 10 17 46.7 181.3 0.1 0.8 110 3625 16 39 51 16 41 40 GRS1915 19 10 17 47.7 177.9 -0.1 -1.3 -31 3625 No stop 16 45 10 --- 19 13 48 47.7 179.1 -0.0 -0.5 179 3679 16 41 41 16 45 10 J1905+0952 19 13 48 46.6 182.6 0.1 1.6 -32 3679 No stop 16 47 40 =1903+097 19 16 18 46.6 183.5 0.2 2.1 118 3718 16 45 11 16 47 40 GRS1915 19 16 18 47.8 180.1 0.0 0.0 -30 3718 No stop 16 51 10 --- 19 19 49 47.7 181.3 0.1 0.8 180 3772 16 47 41 16 51 50 J1905+0952 19 20 29 46.6 185.0 0.2 3.0 8 3772 16 51 50 16 53 40 =1903+097 19 22 19 46.6 185.6 0.3 3.4 110 3800 16 51 51 16 53 40 GRS1915 19 22 19 47.7 182.3 0.1 1.4 -30 3800 No stop 16 57 10 --- 19 25 50 47.7 183.5 0.2 2.2 180 3854 16 53 41 Schedule for JODRELL2 (Code Jb ) Page 8 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 16 57 10 J1905+0952 19 25 50 46.5 186.9 0.3 4.2 -32 3854 No stop 16 59 40 =1903+097 19 28 20 46.4 187.8 0.4 4.7 118 3893 16 57 11 16 59 40 GRS1915 19 28 20 47.7 184.4 0.2 2.7 -30 3893 No stop 17 03 10 --- 19 31 51 47.6 185.7 0.3 3.5 180 3947 16 59 41 17 03 50 J1905+0952 19 32 31 46.4 189.3 0.4 5.6 9 3947 17 03 50 17 05 40 =1903+097 19 34 21 46.3 189.9 0.5 6.0 110 3975 17 03 51 17 05 40 J1913+0932 19 34 21 46.2 187.1 0.3 4.3 -28 3975 No stop 17 08 10 --- 19 36 51 46.1 188.0 0.4 4.9 122 4014 17 05 41 17 08 50 J1905+0952 19 37 32 46.2 191.0 0.5 6.7 11 4014 17 08 50 17 10 50 =1903+097 19 39 32 46.2 191.7 0.5 7.1 120 4045 17 08 51 17 10 50 GRS1915 19 39 32 47.5 188.5 0.4 5.2 -30 4045 No stop 17 14 20 --- 19 43 02 47.4 189.8 0.4 5.9 180 4099 17 10 51 17 14 20 J1905+0952 19 43 02 46.1 193.0 0.6 7.8 -31 4099 No stop 17 16 50 =1903+097 19 45 33 46.0 193.9 0.6 8.4 119 4138 17 14 21 17 16 50 GRS1915 19 45 33 47.3 190.7 0.5 6.5 -29 4138 No stop 17 20 20 --- 19 49 03 47.2 191.9 0.5 7.2 181 4192 17 16 51 17 21 00 J1905+0952 19 49 44 45.8 195.3 0.7 9.2 9 4192 17 21 00 17 22 50 =1903+097 19 51 34 45.7 196.0 0.7 9.6 110 4220 17 21 01 17 22 50 GRS1915 19 51 34 47.2 192.8 0.6 7.8 -29 4220 No stop 17 26 20 --- 19 55 04 47.0 194.1 0.6 8.5 181 4274 17 22 51 17 26 20 J1905+0952 19 55 04 45.6 197.2 0.8 10.3 -30 4274 No stop 17 28 50 =1903+097 19 57 35 45.5 198.0 0.8 10.8 120 4313 17 26 21 17 28 50 GRS1915 19 57 35 46.9 195.0 0.7 9.1 -29 4313 No stop 17 32 20 --- 20 01 05 46.8 196.2 0.7 9.8 181 4367 17 28 51 17 33 00 J1905+0952 20 01 46 45.3 199.5 0.9 11.7 10 4367 17 33 00 17 34 50 =1903+097 20 03 36 45.2 200.1 0.9 12.1 110 4395 17 33 01 17 34 50 GRS1915 20 03 36 46.7 197.1 0.8 10.3 -29 4395 No stop 17 38 20 --- 20 07 06 46.5 198.3 0.8 11.1 181 4449 17 34 51 17 38 20 J1905+0952 20 07 06 45.0 201.3 1.0 12.8 -30 4449 No stop 17 40 50 =1903+097 20 09 37 44.9 202.2 1.0 13.2 120 4488 17 38 21 Schedule for JODRELL2 (Code Jb ) Page 9 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 17 40 50 GRS1915 20 09 37 46.4 199.2 0.9 11.6 -28 4488 No stop 17 44 20 --- 20 13 07 46.2 200.4 0.9 12.3 182 4542 17 40 51 17 45 00 J1905+0952 20 13 48 44.6 203.6 1.1 14.1 10 4542 17 45 00 17 46 50 =1903+097 20 15 38 44.5 204.2 1.2 14.4 110 4571 17 45 01 17 46 50 GRS1915 20 15 38 46.1 201.3 1.0 12.8 -28 4571 No stop 17 50 20 --- 20 19 08 45.9 202.5 1.0 13.5 182 4625 17 46 51 17 50 20 J1905+0952 20 19 08 44.3 205.3 1.2 15.1 -29 4625 No stop 17 52 50 =1903+097 20 21 39 44.1 206.2 1.3 15.5 121 4663 17 50 21 17 52 50 GRS1915 20 21 39 45.8 203.4 1.1 14.0 -28 4663 No stop 17 56 20 --- 20 25 09 45.5 204.6 1.2 14.7 182 4717 17 52 51 17 57 00 J1905+0952 20 25 50 43.8 207.6 1.3 16.3 11 4717 17 57 00 17 58 50 =1903+097 20 27 40 43.7 208.2 1.4 16.7 110 4746 17 57 01 17 58 50 J1913+0932 20 27 40 43.9 205.5 1.2 15.1 -27 4746 No stop 18 01 20 --- 20 30 10 43.8 206.3 1.3 15.6 123 4784 17 58 51 18 02 00 J1905+0952 20 30 50 43.5 209.2 1.4 17.2 12 4784 18 02 00 18 04 00 =1903+097 20 32 51 43.3 209.8 1.4 17.6 120 4815 18 02 01 18 04 00 GRS1915 20 32 51 45.0 207.1 1.3 16.2 -27 4815 No stop 18 07 30 --- 20 36 21 44.8 208.3 1.3 16.8 183 4869 18 04 01 18 07 30 J1905+0952 20 36 21 43.1 211.0 1.5 18.2 -28 4869 No stop 18 10 00 =1903+097 20 38 52 42.9 211.8 1.5 18.7 122 4908 18 07 31 18 10 00 GRS1915 20 38 52 44.6 209.1 1.4 17.3 -27 4908 No stop 18 13 30 --- 20 42 22 44.4 210.3 1.4 17.9 183 4962 18 10 01 18 14 10 J1905+0952 20 43 02 42.5 213.1 1.6 19.4 12 4962 18 14 10 18 16 10 =1903+097 20 45 03 42.4 213.7 1.6 19.7 120 4993 18 14 11 18 16 10 GRS1915 20 45 03 44.2 211.2 1.5 18.4 -27 4993 No stop 18 19 40 --- 20 48 33 43.9 212.3 1.5 19.0 183 5047 18 16 11 18 19 40 J1905+0952 20 48 33 42.1 214.8 1.7 20.3 -28 5047 No stop 18 22 10 =1903+097 20 51 04 41.9 215.6 1.7 20.7 122 5086 18 19 41 18 22 10 GRS1915 20 51 04 43.7 213.1 1.6 19.5 -26 5086 No stop 18 25 40 --- 20 54 34 43.4 214.2 1.6 20.1 184 5140 18 22 11 Schedule for JODRELL2 (Code Jb ) Page 10 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 18 26 20 J1905+0952 20 55 14 41.5 216.9 1.8 21.4 13 5140 18 26 20 18 28 20 =1903+097 20 57 15 41.3 217.5 1.8 21.7 120 5171 18 26 21 18 28 20 GRS1915 20 57 15 43.2 215.1 1.7 20.5 -26 5171 No stop 18 31 50 --- 21 00 45 42.9 216.2 1.7 21.1 184 5225 18 28 21 18 31 50 J1905+0952 21 00 45 41.0 218.6 1.9 22.3 -27 5225 No stop 18 34 20 =1903+097 21 03 16 40.7 219.3 1.9 22.6 123 5264 18 31 51 18 34 20 GRS1915 21 03 16 42.6 216.9 1.8 21.5 -26 5264 No stop 18 37 50 --- 21 06 46 42.3 218.0 1.8 22.1 184 5318 18 34 21 18 38 30 J1905+0952 21 07 26 40.3 220.6 2.0 23.3 13 5318 18 38 30 18 40 30 =1903+097 21 09 27 40.1 221.1 2.0 23.6 120 5349 18 38 31 18 40 30 GRS1915 21 09 27 42.1 218.9 1.9 22.5 -25 5349 No stop 18 44 00 --- 21 12 57 41.7 219.9 1.9 23.0 185 5403 18 40 31 18 44 00 J1905+0952 21 12 57 39.8 222.2 2.1 24.1 -26 5403 No stop 18 46 30 =1903+097 21 15 28 39.5 222.9 2.1 24.4 124 5441 18 44 01 18 46 30 GRS1915 21 15 28 41.5 220.7 2.0 23.4 -25 5441 No stop 18 50 00 --- 21 18 58 41.1 221.7 2.0 23.9 185 5495 18 46 31 18 50 40 J1905+0952 21 19 38 39.1 224.1 2.2 25.0 14 5495 18 50 40 18 52 40 =1903+097 21 21 39 38.9 224.7 2.3 25.3 120 5526 18 50 41 18 52 40 J1913+0932 21 21 39 39.4 222.3 2.1 24.1 -26 5526 No stop 18 55 10 --- 21 24 09 39.2 223.0 2.2 24.5 124 5565 18 52 41 18 55 50 J1905+0952 21 24 49 38.6 225.6 2.3 25.7 13 5565 18 55 50 18 57 50 =1903+097 21 26 49 38.4 226.2 2.3 26.0 120 5596 18 55 51 18 57 50 GRS1915 21 26 49 40.3 224.0 2.2 25.1 -24 5596 No stop 19 01 20 --- 21 30 20 40.0 225.1 2.2 25.6 186 5650 18 57 51 19 01 20 J1905+0952 21 30 20 38.0 227.2 2.4 26.5 -25 5650 No stop 19 03 50 =1903+097 21 32 50 37.7 227.9 2.4 26.8 125 5689 19 01 21 19 03 50 GRS1915 21 32 50 39.7 225.8 2.3 25.9 -24 5689 No stop 19 07 20 --- 21 36 21 39.3 226.8 2.3 26.4 186 5743 19 03 51 19 08 00 J1905+0952 21 37 01 37.2 229.0 2.5 27.3 15 5743 19 08 00 19 10 00 =1903+097 21 39 01 37.0 229.6 2.5 27.5 120 5774 19 08 01 Schedule for JODRELL2 (Code Jb ) Page 11 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 19 10 00 GRS1915 21 39 01 39.0 227.5 2.4 26.7 -24 5774 No stop 19 13 30 --- 21 42 32 38.6 228.5 2.4 27.2 186 5828 19 10 01 19 13 30 J1905+0952 21 42 32 36.6 230.5 2.6 28.0 -25 5828 No stop 19 16 00 =1903+097 21 45 02 36.3 231.2 2.6 28.3 125 5866 19 13 31 19 16 00 GRS1915 21 45 02 38.4 229.2 2.5 27.5 -24 5866 No stop 19 19 30 --- 21 48 33 38.0 230.2 2.5 27.9 186 5921 19 16 01 19 20 10 J1905+0952 21 49 13 35.8 232.3 2.7 28.7 15 5921 19 20 10 19 22 10 =1903+097 21 51 13 35.6 232.8 2.7 29.0 120 5951 19 20 11 19 22 10 GRS1915 21 51 13 37.6 230.9 2.6 28.3 -23 5951 No stop 19 25 40 --- 21 54 44 37.2 231.9 2.6 28.7 187 6006 19 22 11 19 25 40 J1905+0952 21 54 44 35.2 233.8 2.8 29.3 -24 6006 No stop 19 28 10 =1903+097 21 57 14 34.9 234.4 2.8 29.6 126 6044 19 25 41 19 28 10 GRS1915 21 57 14 36.9 232.6 2.7 29.0 -23 6044 No stop 19 31 40 --- 22 00 45 36.5 233.5 2.7 29.3 187 6098 19 28 11 19 32 20 J1905+0952 22 01 25 34.3 235.5 2.9 30.1 16 6098 19 32 20 19 34 20 =1903+097 22 03 25 34.1 236.0 2.9 30.3 120 6129 19 32 21 19 34 20 J1913+0932 22 03 25 34.8 233.8 2.8 29.3 -25 6129 No stop 19 36 50 --- 22 05 56 34.5 234.5 2.9 29.6 125 6168 19 34 21 19 37 30 J1905+0952 22 06 36 33.7 236.8 3.0 30.6 14 6168 19 37 30 19 39 30 =1903+097 22 08 36 33.4 237.3 3.0 30.8 120 6199 19 37 31 19 39 30 GRS1915 22 08 36 35.6 235.6 2.9 30.2 -23 6199 No stop 19 43 00 --- 22 12 07 35.1 236.5 2.9 30.5 187 6253 19 39 31 19 43 00 J1905+0952 22 12 07 33.0 238.2 3.1 31.1 -23 6253 No stop 19 45 30 =1903+097 22 14 37 32.7 238.9 3.1 31.3 127 6292 19 43 01 19 45 30 GRS1915 22 14 37 34.8 237.1 3.0 30.8 -22 6292 No stop 19 49 00 --- 22 18 08 34.4 238.0 3.0 31.1 188 6346 19 45 31 19 49 40 J1905+0952 22 18 48 32.1 239.9 3.2 31.7 17 6346 19 49 40 19 51 40 =1903+097 22 20 48 31.9 240.4 3.2 31.9 120 6377 19 49 41 19 51 40 GRS1915 22 20 48 34.0 238.7 3.1 31.4 -22 6377 No stop 19 55 10 --- 22 24 19 33.6 239.6 3.1 31.7 188 6431 19 51 41 Schedule for JODRELL2 (Code Jb ) Page 12 Probing the radio jets in GRS1915+105 in a new puzzling accretion state 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 30 Oct 2020 Day 304 --- 19 55 10 J1905+0952 22 24 19 31.4 241.3 3.3 32.2 -23 6431 No stop 19 57 40 =1903+097 22 26 49 31.1 241.9 3.3 32.4 127 6469 19 55 11 19 57 40 GRS1915 22 26 49 33.3 240.2 3.2 31.9 -22 6469 No stop 20 01 10 --- 22 30 20 32.8 241.1 3.2 32.3 188 6523 19 57 41 20 01 50 J1905+0952 22 31 00 30.5 242.9 3.4 32.7 17 6523 20 01 50 20 03 50 =1903+097 22 33 00 30.3 243.4 3.4 32.9 120 6554 20 01 51 20 03 50 GRS1915 22 33 00 32.4 241.7 3.3 32.5 -22 6554 No stop 20 07 20 --- 22 36 31 32.0 242.6 3.3 32.8 188 6608 20 03 51 20 07 20 J1905+0952 22 36 31 29.8 244.2 3.5 33.2 -23 6608 No stop 20 09 50 =1903+097 22 39 01 29.5 244.8 3.5 33.3 127 6647 20 07 21 20 09 50 GRS1915 22 39 01 31.6 243.2 3.4 33.0 -22 6647 No stop 20 13 20 --- 22 42 32 31.2 244.0 3.4 33.2 188 6701 20 09 51 20 14 00 J1905+0952 22 43 12 28.9 245.8 3.6 33.6 18 6701 20 14 00 20 16 00 =1903+097 22 45 12 28.6 246.2 3.6 33.8 120 6732 20 14 01 20 16 00 J1913+0932 22 45 12 29.4 244.2 3.5 33.1 -24 6732 No stop 20 18 30 --- 22 47 43 29.1 244.8 3.6 33.3 126 6771 20 16 01 20 19 10 J1905+0952 22 48 23 28.2 247.0 3.7 34.0 15 6771 20 19 10 20 22 40 =1903+097 22 51 53 27.7 247.8 3.8 34.2 210 6825 20 19 11 20 24 00 J2253+1608 22 53 14 53.0 179.3 -0.0 -0.4 -145 6825 20 24 00 20 30 00 =3C454.3 22 59 15 53.0 181.7 0.1 1.1 215 6918 20 24 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess320.C2048 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 5 Station: JODRELL2 Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= U U L L U U L L U U L L U U L L IF = A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 The following frequency sets based on these setups were used. Frequency Set: 1 Setup file default. Used with PCAL = off LO sum= 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 833.51 833.51 833.51 833.51 769.51 769.51 769.51 769.51 705.51 705.51 705.51 705.51 641.51 641.51 641.51 641.51 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 1 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * GRS1915 19 12 49.958613 * 19 15 11.544821 19 16 08.946282 0.00 GRS1915+105 10 51 26.57111 * 10 56 44.62477 10 59 05.89093 0.00 From catalog imbedded in main SCHED input file. * J1913+0932 19 11 00.869981 * 19 13 24.025348 19 14 22.061653 0.00 09 27 34.81592 * 09 32 45.37648 09 35 03.19161 0.00 From catalog imbedded in main SCHED input file. 1758+388 17 58 44.703954 * 18 00 24.765363 18 01 04.600553 0.01 * J1800+3848 38 48 32.47350 * 38 48 30.69748 38 48 44.84096 0.01 J1800+38 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 5095 observations. 1903+097 19 03 17.231910 * 19 05 39.898972 19 06 37.696026 0.13 * J1905+0952 09 47 30.15815 * 09 52 08.40750 09 54 13.05426 0.22 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 104 observations. 3C454.3 22 51 29.519739 * 22 53 57.747939 22 54 59.130379 0.65 * J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 37.30815 0.73 2251+158 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J2253+16 GSFC 2016a X/S astro solution, 41272 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 GRS1915 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 3.967 475.462 J1913+0932 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 0.375 40.584 J1800+3848 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 0.167 21.144 J1905+0952 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 2.850 343.015 J2253+1608 sess320.C2048 1 2 3 4 5 7 8 9 10 11 14 0.100 9.530 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) GRS1915 77.2 J1913+0932 76.4 J1800+3848 73.6 J1905+0952 74.7 J2253+1608 130.3 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