COVER INFORMATION Station: JODRELL2 (Code Jb ) Experiment: Probing the radio jets in GRS1915+105 in a new puzzling accretion state Exp. Code: EM144B Schedule Version: 2.40 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 5 Mar 2021 Day 64 --- 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 04 00 00 J1800+3848 14 43 18 53.6 93.0 -3.3 -50.1 0 0 04 00 00 04 05 00 =1758+388 14 48 19 54.4 94.0 -3.2 -50.0 300 77 04 00 01 04 07 00 J1905+0952 14 50 19 23.3 105.3 -4.3 -35.9 9 77 04 07 00 04 09 30 =1903+097 14 52 50 23.7 105.8 -4.2 -35.8 150 116 04 07 01 04 09 30 GRS1915 14 52 50 23.1 103.1 -4.4 -36.4 -28 116 No stop 04 13 00 --- 14 56 20 23.7 103.8 -4.3 -36.3 182 170 04 09 31 04 13 00 J1905+0952 14 56 20 24.2 106.6 -4.2 -35.6 -29 170 No stop 04 15 30 =1903+097 14 58 51 24.5 107.1 -4.1 -35.5 121 209 04 13 01 04 15 30 GRS1915 14 58 51 24.0 104.4 -4.3 -36.2 -28 209 No stop 04 19 00 --- 15 02 21 24.5 105.1 -4.2 -36.1 182 263 04 15 31 04 19 40 J1905+0952 15 03 01 25.1 108.1 -4.1 -35.3 11 263 04 19 40 04 21 30 =1903+097 15 04 52 25.4 108.5 -4.0 -35.2 110 291 04 19 41 04 21 30 GRS1915 15 04 52 24.9 105.7 -4.2 -35.9 -28 291 No stop 04 25 00 --- 15 08 22 25.4 106.5 -4.1 -35.8 182 345 04 21 31 04 25 00 J1905+0952 15 08 22 25.9 109.3 -4.0 -35.0 -29 345 No stop 04 27 30 =1903+097 15 10 52 26.2 109.8 -3.9 -34.9 121 384 04 25 01 04 27 30 GRS1915 15 10 52 25.8 107.0 -4.1 -35.7 -28 384 No stop 04 31 00 --- 15 14 23 26.3 107.8 -4.0 -35.5 182 438 04 27 31 04 31 40 J1905+0952 15 15 03 26.8 110.8 -3.9 -34.6 11 438 04 31 40 04 33 30 =1903+097 15 16 53 27.1 111.2 -3.8 -34.5 110 466 04 31 41 04 33 30 GRS1915 15 16 53 26.6 108.3 -4.0 -35.4 -28 466 No stop 04 37 00 --- 15 20 24 27.1 109.1 -3.9 -35.2 182 520 04 33 31 04 37 00 J1905+0952 15 20 24 27.6 112.0 -3.8 -34.3 -29 520 No stop 04 39 30 =1903+097 15 22 54 27.9 112.6 -3.7 -34.1 121 559 04 37 01 04 39 30 GRS1915 15 22 54 27.5 109.7 -3.9 -35.0 -28 559 No stop 04 43 00 --- 15 26 25 28.0 110.5 -3.8 -34.8 182 613 04 39 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 5 Mar 2021 Day 64 --- 04 43 40 J1905+0952 15 27 05 28.5 113.5 -3.7 -33.9 11 613 04 43 40 04 45 30 =1903+097 15 28 55 28.7 114.0 -3.6 -33.7 110 642 04 43 41 04 45 30 GRS1915 15 28 55 28.3 111.1 -3.8 -34.7 -28 642 No stop 04 49 00 --- 15 32 26 28.8 111.9 -3.7 -34.5 182 696 04 45 31 04 49 00 J1905+0952 15 32 26 29.2 114.8 -3.6 -33.5 -29 696 No stop 04 51 30 =1903+097 15 34 56 29.5 115.4 -3.5 -33.3 121 734 04 49 01 04 51 30 GRS1915 15 34 56 29.1 112.5 -3.7 -34.3 -29 734 No stop 04 55 00 --- 15 38 27 29.6 113.3 -3.6 -34.1 181 788 04 51 31 04 55 40 J1905+0952 15 39 07 30.1 116.4 -3.5 -33.0 10 788 04 55 40 04 57 30 =1903+097 15 40 57 30.4 116.8 -3.4 -32.8 110 817 04 55 41 04 57 30 J1913+0932 15 40 57 29.0 115.2 -3.6 -33.3 -22 817 No stop 05 00 00 --- 15 43 28 29.4 115.8 -3.5 -33.1 128 855 04 57 31 05 00 40 J1905+0952 15 44 08 30.8 117.6 -3.4 -32.6 17 855 05 00 40 05 02 40 =1903+097 15 46 08 31.0 118.1 -3.3 -32.4 120 886 05 00 41 05 02 40 GRS1915 15 46 08 30.7 115.1 -3.5 -33.5 -29 886 No stop 05 06 10 --- 15 49 39 31.2 115.9 -3.4 -33.3 181 940 05 02 41 05 06 10 J1905+0952 15 49 39 31.5 118.9 -3.3 -32.1 -30 940 No stop 05 08 40 =1903+097 15 52 09 31.8 119.5 -3.2 -31.9 120 979 05 06 11 05 08 40 GRS1915 15 52 09 31.5 116.5 -3.4 -33.1 -29 979 No stop 05 12 10 --- 15 55 40 32.0 117.4 -3.3 -32.8 181 1033 05 08 41 05 12 50 J1905+0952 15 56 20 32.4 120.6 -3.2 -31.5 10 1033 05 12 50 05 14 40 =1903+097 15 58 10 32.6 121.0 -3.1 -31.4 110 1061 05 12 51 05 14 40 GRS1915 15 58 10 32.3 118.0 -3.3 -32.6 -29 1061 No stop 05 18 10 --- 16 01 41 32.8 118.9 -3.2 -32.3 181 1116 05 14 41 05 18 10 J1905+0952 16 01 41 33.1 121.9 -3.1 -31.1 -30 1116 No stop 05 20 40 =1903+097 16 04 11 33.4 122.5 -3.0 -30.8 120 1154 05 18 11 05 20 40 GRS1915 16 04 11 33.1 119.5 -3.2 -32.1 -29 1154 No stop 05 24 10 --- 16 07 42 33.5 120.3 -3.1 -31.7 181 1208 05 20 41 05 24 50 J1905+0952 16 08 22 33.9 123.6 -3.0 -30.4 10 1208 05 24 50 05 26 40 =1903+097 16 10 12 34.1 124.1 -2.9 -30.2 110 1237 05 24 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 5 Mar 2021 Day 64 --- 05 26 40 GRS1915 16 10 12 33.9 121.0 -3.1 -31.5 -29 1237 No stop 05 30 10 --- 16 13 43 34.3 121.9 -3.0 -31.2 181 1291 05 26 41 05 30 10 J1905+0952 16 13 43 34.6 125.0 -2.9 -29.9 -30 1291 No stop 05 32 40 =1903+097 16 16 13 34.9 125.6 -2.8 -29.6 120 1329 05 30 11 05 32 40 GRS1915 16 16 13 34.6 122.5 -3.0 -30.9 -29 1329 No stop 05 36 10 --- 16 19 44 35.1 123.4 -2.9 -30.6 181 1384 05 32 41 05 36 50 J1905+0952 16 20 24 35.4 126.7 -2.8 -29.1 9 1384 05 36 50 05 38 40 =1903+097 16 22 14 35.6 127.2 -2.7 -28.9 110 1412 05 36 51 05 38 40 GRS1915 16 22 14 35.4 124.1 -2.9 -30.3 -30 1412 No stop 05 42 10 --- 16 25 45 35.8 125.0 -2.8 -30.0 180 1466 05 38 41 05 42 10 J1905+0952 16 25 45 36.0 128.1 -2.7 -28.5 -31 1466 No stop 05 44 40 =1903+097 16 28 15 36.3 128.8 -2.6 -28.3 119 1505 05 42 11 05 44 40 GRS1915 16 28 15 36.1 125.6 -2.8 -29.7 -30 1505 No stop 05 48 10 --- 16 31 46 36.5 126.6 -2.7 -29.3 180 1559 05 44 41 05 48 50 J1905+0952 16 32 26 36.8 129.9 -2.6 -27.8 9 1559 05 48 50 05 50 40 =1903+097 16 34 16 37.0 130.5 -2.5 -27.5 110 1587 05 48 51 05 50 40 J1913+0932 16 34 16 35.8 128.5 -2.7 -28.3 -23 1587 No stop 05 53 10 --- 16 36 47 36.1 129.2 -2.6 -28.1 127 1626 05 50 41 05 53 50 J1905+0952 16 37 27 37.4 131.3 -2.5 -27.1 15 1626 05 53 50 05 55 50 =1903+097 16 39 27 37.6 131.9 -2.5 -26.9 120 1657 05 53 51 05 55 50 GRS1915 16 39 27 37.4 128.6 -2.6 -28.4 -30 1657 No stop 05 59 20 --- 16 42 58 37.9 129.6 -2.6 -28.0 180 1711 05 55 51 05 59 20 J1905+0952 16 42 58 38.0 132.9 -2.4 -26.5 -31 1711 No stop 06 01 50 =1903+097 16 45 28 38.2 133.6 -2.4 -26.1 119 1749 05 59 21 06 01 50 GRS1915 16 45 28 38.1 130.3 -2.5 -27.7 -30 1749 No stop 06 05 20 --- 16 48 59 38.5 131.3 -2.5 -27.3 180 1803 06 01 51 06 06 00 J1905+0952 16 49 39 38.7 134.7 -2.3 -25.6 9 1803 06 06 00 06 07 50 =1903+097 16 51 29 38.9 135.3 -2.3 -25.3 110 1832 06 06 01 06 07 50 GRS1915 16 51 29 38.8 132.0 -2.4 -27.0 -30 1832 No stop 06 11 20 --- 16 55 00 39.2 132.9 -2.4 -26.5 180 1886 06 07 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 5 Mar 2021 Day 64 --- 06 11 20 J1905+0952 16 55 00 39.3 136.3 -2.2 -24.8 -31 1886 No stop 06 13 50 =1903+097 16 57 30 39.5 137.0 -2.2 -24.5 119 1925 06 11 21 06 13 50 GRS1915 16 57 30 39.5 133.7 -2.3 -26.2 -30 1925 No stop 06 17 20 --- 17 01 01 39.9 134.7 -2.3 -25.7 180 1979 06 13 51 06 18 00 J1905+0952 17 01 41 39.9 138.2 -2.1 -23.9 8 1979 06 18 00 06 19 50 =1903+097 17 03 31 40.1 138.8 -2.1 -23.6 110 2007 06 18 01 06 19 50 GRS1915 17 03 31 40.1 135.4 -2.2 -25.4 -30 2007 No stop 06 23 20 --- 17 07 02 40.5 136.4 -2.2 -24.9 180 2061 06 19 51 06 23 20 J1905+0952 17 07 02 40.5 139.8 -2.0 -23.1 -32 2061 No stop 06 25 50 =1903+097 17 09 32 40.7 140.5 -2.0 -22.7 118 2100 06 23 21 06 25 50 GRS1915 17 09 32 40.7 137.1 -2.1 -24.5 -31 2100 No stop 06 29 20 --- 17 13 03 41.1 138.2 -2.1 -24.0 179 2154 06 25 51 06 30 00 J1905+0952 17 13 43 41.1 141.8 -1.9 -22.1 8 2154 06 30 00 06 31 50 =1903+097 17 15 33 41.3 142.4 -1.9 -21.8 110 2182 06 30 01 06 31 50 GRS1915 17 15 33 41.3 138.9 -2.0 -23.6 -31 2182 No stop 06 35 20 --- 17 19 03 41.7 140.0 -2.0 -23.1 179 2236 06 31 51 06 35 20 J1905+0952 17 19 03 41.6 143.4 -1.8 -21.2 -32 2236 No stop 06 37 50 =1903+097 17 21 34 41.8 144.2 -1.8 -20.8 118 2275 06 35 21 06 37 50 GRS1915 17 21 34 41.9 140.8 -1.9 -22.7 -31 2275 No stop 06 41 20 --- 17 25 04 42.3 141.8 -1.9 -22.1 179 2329 06 37 51 06 42 00 J1905+0952 17 25 45 42.2 145.5 -1.7 -20.1 8 2329 06 42 00 06 43 50 =1903+097 17 27 35 42.3 146.1 -1.7 -19.8 110 2357 06 42 01 06 43 50 J1913+0932 17 27 35 41.3 143.8 -1.8 -21.0 -25 2357 No stop 06 46 20 --- 17 30 05 41.6 144.6 -1.7 -20.6 125 2396 06 43 51 06 47 00 J1905+0952 17 30 45 42.6 147.1 -1.6 -19.3 14 2396 06 47 00 06 49 00 =1903+097 17 32 46 42.7 147.7 -1.6 -18.9 120 2427 06 47 01 06 49 00 GRS1915 17 32 46 43.0 144.2 -1.7 -20.9 -31 2427 No stop 06 52 30 --- 17 36 16 43.3 145.3 -1.7 -20.3 179 2481 06 49 01 06 52 30 J1905+0952 17 36 16 43.0 148.8 -1.5 -18.3 -32 2481 No stop 06 55 00 =1903+097 17 38 47 43.2 149.6 -1.5 -17.9 118 2520 06 52 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 5 Mar 2021 Day 64 --- 06 55 00 GRS1915 17 38 47 43.5 146.1 -1.6 -19.9 -31 2520 No stop 06 58 30 --- 17 42 17 43.8 147.2 -1.6 -19.3 179 2574 06 55 01 06 59 10 J1905+0952 17 42 57 43.5 151.0 -1.4 -17.1 8 2574 06 59 10 07 01 00 =1903+097 17 44 48 43.6 151.6 -1.4 -16.8 110 2602 06 59 11 07 01 00 GRS1915 17 44 48 44.0 148.0 -1.5 -18.8 -31 2602 No stop 07 04 30 --- 17 48 18 44.2 149.2 -1.5 -18.2 179 2656 07 01 01 07 04 30 J1905+0952 17 48 18 43.9 152.7 -1.3 -16.2 -32 2656 No stop 07 07 00 =1903+097 17 50 49 44.1 153.6 -1.3 -15.7 118 2695 07 04 31 07 07 00 GRS1915 17 50 49 44.4 150.0 -1.4 -17.8 -31 2695 No stop 07 10 30 --- 17 54 19 44.7 151.1 -1.4 -17.1 179 2749 07 07 01 07 11 10 J1905+0952 17 54 59 44.3 154.9 -1.2 -14.9 7 2749 07 11 10 07 13 00 =1903+097 17 56 50 44.4 155.6 -1.2 -14.6 110 2777 07 11 11 07 13 00 GRS1915 17 56 50 44.9 152.0 -1.3 -16.6 -31 2777 No stop 07 16 30 --- 18 00 20 45.1 153.1 -1.3 -16.0 179 2831 07 13 01 07 16 30 J1905+0952 18 00 20 44.7 156.7 -1.1 -13.9 -33 2831 No stop 07 19 00 =1903+097 18 02 51 44.8 157.6 -1.1 -13.4 117 2870 07 16 31 07 19 00 GRS1915 18 02 51 45.3 154.0 -1.2 -15.5 -31 2870 No stop 07 22 30 --- 18 06 21 45.5 155.2 -1.2 -14.8 179 2924 07 19 01 07 23 10 J1905+0952 18 07 01 45.0 159.0 -1.0 -12.6 7 2924 07 23 10 07 25 00 =1903+097 18 08 52 45.1 159.6 -1.0 -12.2 110 2953 07 23 11 07 25 00 GRS1915 18 08 52 45.6 156.0 -1.1 -14.3 -31 2953 No stop 07 28 30 --- 18 12 22 45.9 157.2 -1.1 -13.7 179 3007 07 25 01 07 28 30 J1905+0952 18 12 22 45.3 160.8 -0.9 -11.5 -33 3007 No stop 07 31 00 =1903+097 18 14 53 45.4 161.7 -0.9 -11.0 117 3045 07 28 31 07 31 00 GRS1915 18 14 53 46.0 158.1 -1.0 -13.2 -31 3045 No stop 07 34 30 --- 18 18 23 46.2 159.3 -1.0 -12.5 179 3099 07 31 01 07 35 10 J1905+0952 18 19 03 45.6 163.1 -0.8 -10.2 7 3099 07 35 10 07 37 00 =1903+097 18 20 54 45.7 163.8 -0.8 -9.8 110 3128 07 35 11 07 37 00 J1913+0932 18 20 54 45.0 161.2 -0.9 -11.3 -27 3128 No stop 07 39 30 --- 18 23 24 45.2 162.0 -0.8 -10.8 123 3166 07 37 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 5 Mar 2021 Day 64 --- 07 40 00 J1800+3848 18 23 54 75.0 197.5 0.4 13.3 -103 3166 07 40 00 07 45 00 =1758+388 18 28 55 74.8 201.1 0.5 16.0 197 3244 07 40 01 07 45 40 J1905+0952 18 29 35 46.0 166.8 -0.6 -8.0 -84 3244 07 45 40 07 47 40 =1903+097 18 31 35 46.1 167.5 -0.6 -7.6 36 3275 07 45 41 07 47 40 GRS1915 18 31 35 46.8 163.9 -0.7 -9.7 -31 3275 No stop 07 51 10 --- 18 35 06 47.0 165.1 -0.7 -9.0 179 3329 07 47 41 07 51 10 J1905+0952 18 35 06 46.2 168.7 -0.5 -6.8 -33 3329 No stop 07 53 40 =1903+097 18 37 36 46.3 169.6 -0.5 -6.3 117 3367 07 51 11 07 53 40 GRS1915 18 37 36 47.0 166.0 -0.6 -8.5 -31 3367 No stop 07 57 10 --- 18 41 07 47.2 167.3 -0.6 -7.7 179 3421 07 53 41 07 57 50 J1905+0952 18 41 47 46.4 171.1 -0.4 -5.4 7 3421 07 57 50 07 59 40 =1903+097 18 43 37 46.4 171.8 -0.4 -5.0 110 3450 07 57 51 07 59 40 GRS1915 18 43 37 47.2 168.2 -0.5 -7.2 -31 3450 No stop 08 03 10 --- 18 47 08 47.3 169.5 -0.5 -6.4 179 3504 07 59 41 08 03 10 J1905+0952 18 47 08 46.5 173.0 -0.3 -4.2 -33 3504 No stop 08 05 40 =1903+097 18 49 38 46.5 173.9 -0.3 -3.7 117 3543 08 03 11 08 05 40 GRS1915 18 49 38 47.4 170.4 -0.4 -5.9 -31 3543 No stop 08 09 10 --- 18 53 09 47.5 171.6 -0.4 -5.1 179 3597 08 05 41 08 09 50 J1905+0952 18 53 49 46.6 175.4 -0.2 -2.8 8 3597 08 09 50 08 11 40 =1903+097 18 55 39 46.6 176.1 -0.2 -2.4 110 3625 08 09 51 08 11 40 GRS1915 18 55 39 47.5 172.5 -0.3 -4.5 -31 3625 No stop 08 15 10 --- 18 59 10 47.6 173.8 -0.3 -3.8 179 3679 08 11 41 08 15 10 J1905+0952 18 59 10 46.6 177.3 -0.1 -1.6 -32 3679 No stop 08 17 40 =1903+097 19 01 40 46.7 178.2 -0.1 -1.1 118 3718 08 15 11 08 17 40 GRS1915 19 01 40 47.6 174.7 -0.2 -3.2 -31 3718 No stop 08 21 10 --- 19 05 11 47.7 176.0 -0.2 -2.4 179 3772 08 17 41 08 21 50 J1905+0952 19 05 51 46.7 179.7 -0.0 -0.2 8 3772 08 21 50 08 23 40 =1903+097 19 07 41 46.7 180.4 0.0 0.2 110 3800 08 21 51 08 23 40 GRS1915 19 07 41 47.7 176.9 -0.1 -1.9 -31 3800 No stop 08 27 10 --- 19 11 12 47.7 178.2 -0.1 -1.1 179 3854 08 23 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 5 Mar 2021 Day 64 --- 08 27 10 J1905+0952 19 11 12 46.7 181.6 0.1 1.0 -32 3854 No stop 08 29 40 =1903+097 19 13 42 46.6 182.5 0.1 1.5 118 3893 08 27 11 08 29 40 GRS1915 19 13 42 47.7 179.1 -0.0 -0.5 -31 3893 No stop 08 33 10 --- 19 17 13 47.7 180.4 0.0 0.2 179 3947 08 29 41 08 33 50 J1905+0952 19 17 53 46.6 184.0 0.2 2.4 8 3947 08 33 50 08 35 40 =1903+097 19 19 43 46.6 184.7 0.2 2.8 110 3975 08 33 51 08 35 40 J1913+0932 19 19 43 46.3 181.9 0.1 1.2 -28 3975 No stop 08 38 10 --- 19 22 14 46.3 182.8 0.1 1.7 122 4014 08 35 41 08 38 50 J1905+0952 19 22 54 46.5 185.8 0.3 3.5 11 4014 08 38 50 08 40 50 =1903+097 19 24 54 46.5 186.5 0.3 4.0 120 4045 08 38 51 08 40 50 GRS1915 19 24 54 47.7 183.2 0.1 1.9 -30 4045 No stop 08 44 20 --- 19 28 25 47.7 184.5 0.2 2.7 180 4099 08 40 51 08 44 20 J1905+0952 19 28 25 46.4 187.8 0.4 4.7 -32 4099 No stop 08 46 50 =1903+097 19 30 55 46.4 188.7 0.4 5.3 118 4138 08 44 21 08 46 50 GRS1915 19 30 55 47.6 185.4 0.2 3.3 -30 4138 No stop 08 50 20 --- 19 34 26 47.6 186.7 0.3 4.1 180 4192 08 46 51 08 51 00 J1905+0952 19 35 06 46.3 190.2 0.5 6.2 9 4192 08 51 00 08 52 50 =1903+097 19 36 56 46.2 190.8 0.5 6.5 110 4220 08 51 01 08 52 50 GRS1915 19 36 56 47.5 187.6 0.3 4.6 -30 4220 No stop 08 56 20 --- 19 40 27 47.5 188.8 0.4 5.4 180 4274 08 52 51 08 56 20 J1905+0952 19 40 27 46.1 192.1 0.6 7.3 -31 4274 No stop 08 58 50 =1903+097 19 42 57 46.1 192.9 0.6 7.8 119 4313 08 56 21 08 58 50 GRS1915 19 42 57 47.4 189.7 0.4 5.9 -30 4313 No stop 09 02 20 --- 19 46 28 47.3 191.0 0.5 6.7 180 4367 08 58 51 09 03 00 J1905+0952 19 47 08 45.9 194.4 0.7 8.7 9 4367 09 03 00 09 04 50 =1903+097 19 48 58 45.8 195.0 0.7 9.1 110 4395 09 03 01 09 04 50 GRS1915 19 48 58 47.2 191.9 0.5 7.2 -29 4395 No stop 09 08 20 --- 19 52 29 47.1 193.2 0.6 8.0 181 4449 09 04 51 09 08 20 J1905+0952 19 52 29 45.7 196.3 0.8 9.8 -31 4449 No stop 09 10 50 =1903+097 19 54 59 45.6 197.1 0.8 10.3 119 4488 09 08 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 5 Mar 2021 Day 64 --- 09 10 50 GRS1915 19 54 59 47.0 194.1 0.6 8.5 -29 4488 No stop 09 14 20 --- 19 58 30 46.9 195.3 0.7 9.3 181 4542 09 10 51 09 15 00 J1905+0952 19 59 10 45.4 198.6 0.9 11.2 10 4542 09 15 00 09 16 50 =1903+097 20 01 00 45.3 199.2 0.9 11.5 110 4571 09 15 01 09 16 50 GRS1915 20 01 00 46.8 196.2 0.7 9.8 -29 4571 No stop 09 20 20 --- 20 04 31 46.6 197.4 0.8 10.5 181 4625 09 16 51 09 20 20 J1905+0952 20 04 31 45.1 200.4 1.0 12.2 -30 4625 No stop 09 22 50 =1903+097 20 07 01 45.0 201.3 1.0 12.7 120 4663 09 20 21 09 22 50 GRS1915 20 07 01 46.5 198.3 0.8 11.0 -28 4663 No stop 09 26 20 --- 20 10 32 46.4 199.5 0.9 11.8 182 4717 09 22 51 09 27 00 J1905+0952 20 11 12 44.8 202.7 1.1 13.5 10 4717 09 27 00 09 28 50 =1903+097 20 13 02 44.7 203.3 1.1 13.9 110 4746 09 27 01 09 28 50 J1913+0932 20 13 02 44.8 200.6 1.0 12.3 -27 4746 No stop 09 31 20 --- 20 15 32 44.6 201.4 1.0 12.8 123 4784 09 28 51 09 32 00 J1905+0952 20 16 13 44.5 204.4 1.2 14.5 11 4784 09 32 00 09 34 00 =1903+097 20 18 13 44.3 205.0 1.2 14.9 120 4815 09 32 01 09 34 00 GRS1915 20 18 13 46.0 202.2 1.0 13.3 -28 4815 No stop 09 37 30 --- 20 21 43 45.7 203.4 1.1 14.0 182 4869 09 34 01 09 37 30 J1905+0952 20 21 43 44.1 206.2 1.3 15.6 -29 4869 No stop 09 40 00 =1903+097 20 24 14 43.9 207.0 1.3 16.0 121 4908 09 37 31 09 40 00 GRS1915 20 24 14 45.6 204.2 1.1 14.5 -28 4908 No stop 09 43 30 --- 20 27 44 45.4 205.4 1.2 15.2 182 4962 09 40 01 09 44 10 J1905+0952 20 28 25 43.6 208.4 1.4 16.8 11 4962 09 44 10 09 46 10 =1903+097 20 30 25 43.5 209.0 1.4 17.2 120 4993 09 44 11 09 46 10 GRS1915 20 30 25 45.2 206.3 1.2 15.7 -27 4993 No stop 09 49 40 --- 20 33 55 45.0 207.5 1.3 16.4 183 5047 09 46 11 09 49 40 J1905+0952 20 33 55 43.2 210.2 1.5 17.8 -29 5047 No stop 09 52 10 =1903+097 20 36 26 43.1 211.0 1.5 18.2 121 5086 09 49 41 09 52 10 GRS1915 20 36 26 44.8 208.3 1.3 16.8 -27 5086 No stop 09 55 40 --- 20 39 56 44.5 209.5 1.4 17.5 183 5140 09 52 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 5 Mar 2021 Day 64 --- 09 56 20 J1905+0952 20 40 37 42.7 212.3 1.6 19.0 12 5140 09 56 20 09 58 20 =1903+097 20 42 37 42.6 212.9 1.6 19.3 120 5171 09 56 21 09 58 20 GRS1915 20 42 37 44.3 210.4 1.4 18.0 -27 5171 No stop 10 01 50 --- 20 46 07 44.1 211.5 1.5 18.6 183 5225 09 58 21 10 01 50 J1905+0952 20 46 07 42.3 214.0 1.7 19.9 -28 5225 No stop 10 04 20 =1903+097 20 48 38 42.1 214.8 1.7 20.3 122 5264 10 01 51 10 04 20 GRS1915 20 48 38 43.9 212.3 1.5 19.0 -26 5264 No stop 10 07 50 --- 20 52 08 43.6 213.4 1.6 19.6 184 5318 10 04 21 10 08 30 J1905+0952 20 52 49 41.7 216.1 1.8 21.0 12 5318 10 08 30 10 10 30 =1903+097 20 54 49 41.5 216.7 1.8 21.3 120 5349 10 08 31 10 10 30 GRS1915 20 54 49 43.4 214.3 1.6 20.1 -26 5349 No stop 10 14 00 --- 20 58 19 43.1 215.4 1.7 20.7 184 5403 10 10 31 10 14 00 J1905+0952 20 58 19 41.2 217.8 1.9 21.9 -27 5403 No stop 10 16 30 =1903+097 21 00 50 41.0 218.6 1.9 22.3 123 5441 10 14 01 10 16 30 GRS1915 21 00 50 42.8 216.2 1.7 21.1 -26 5441 No stop 10 20 00 --- 21 04 20 42.5 217.3 1.8 21.7 184 5495 10 16 31 10 20 40 J1905+0952 21 05 01 40.6 219.8 2.0 22.9 13 5495 10 20 40 10 22 40 =1903+097 21 07 01 40.4 220.4 2.0 23.2 120 5526 10 20 41 10 22 40 J1913+0932 21 07 01 40.8 217.9 1.9 21.9 -26 5526 No stop 10 25 10 --- 21 09 31 40.6 218.7 1.9 22.3 124 5565 10 22 41 10 25 50 J1905+0952 21 10 11 40.1 221.4 2.1 23.7 13 5565 10 25 50 10 27 50 =1903+097 21 12 12 39.9 222.0 2.1 24.0 120 5596 10 25 51 10 27 50 GRS1915 21 12 12 41.8 219.7 1.9 22.9 -25 5596 No stop 10 31 20 --- 21 15 42 41.5 220.7 2.0 23.4 185 5650 10 27 51 10 31 20 J1905+0952 21 15 42 39.5 223.0 2.2 24.5 -26 5650 No stop 10 33 50 =1903+097 21 18 13 39.3 223.7 2.2 24.8 124 5689 10 31 21 10 33 50 GRS1915 21 18 13 41.2 221.5 2.0 23.8 -25 5689 No stop 10 37 20 --- 21 21 43 40.9 222.5 2.1 24.3 185 5743 10 33 51 10 38 00 J1905+0952 21 22 23 38.8 224.9 2.3 25.4 14 5743 10 38 00 10 40 00 =1903+097 21 24 24 38.6 225.5 2.3 25.7 120 5774 10 38 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 5 Mar 2021 Day 64 --- 10 40 00 GRS1915 21 24 24 40.6 223.3 2.1 24.7 -25 5774 No stop 10 43 30 --- 21 27 54 40.2 224.3 2.2 25.2 185 5828 10 40 01 10 43 30 J1905+0952 21 27 54 38.2 226.5 2.4 26.1 -26 5828 No stop 10 46 00 =1903+097 21 30 25 38.0 227.2 2.4 26.5 124 5866 10 43 31 10 46 00 GRS1915 21 30 25 40.0 225.1 2.2 25.6 -24 5866 No stop 10 49 30 --- 21 33 55 39.6 226.1 2.3 26.1 186 5921 10 46 01 10 50 10 J1905+0952 21 34 35 37.5 228.3 2.5 27.0 15 5921 10 50 10 10 52 10 =1903+097 21 36 36 37.3 228.9 2.5 27.2 120 5951 10 50 11 10 52 10 GRS1915 21 36 36 39.3 226.8 2.3 26.4 -24 5951 No stop 10 55 40 --- 21 40 06 38.9 227.8 2.4 26.9 186 6006 10 52 11 10 55 40 J1905+0952 21 40 06 36.9 229.8 2.6 27.7 -25 6006 No stop 10 58 10 =1903+097 21 42 37 36.6 230.5 2.6 28.0 125 6044 10 55 41 10 58 10 GRS1915 21 42 37 38.6 228.5 2.4 27.2 -24 6044 No stop 11 01 40 --- 21 46 07 38.2 229.5 2.5 27.6 186 6098 10 58 11 11 02 20 J1905+0952 21 46 47 36.1 231.7 2.7 28.5 15 6098 11 02 20 11 04 20 =1903+097 21 48 48 35.9 232.2 2.7 28.7 120 6129 11 02 21 11 04 20 J1913+0932 21 48 48 36.5 229.9 2.6 27.7 -25 6129 No stop 11 06 50 --- 21 51 18 36.2 230.6 2.6 28.0 125 6168 11 04 21 11 07 30 J1905+0952 21 51 58 35.5 233.0 2.8 29.0 14 6168 11 07 30 11 09 30 =1903+097 21 53 59 35.2 233.6 2.8 29.3 120 6199 11 07 31 11 09 30 GRS1915 21 53 59 37.3 231.7 2.6 28.6 -23 6199 No stop 11 13 00 --- 21 57 29 36.9 232.6 2.7 29.0 187 6253 11 09 31 11 13 00 J1905+0952 21 57 29 34.8 234.5 2.8 29.6 -24 6253 No stop 11 15 30 =1903+097 22 00 00 34.5 235.1 2.9 29.9 126 6292 11 13 01 11 15 30 GRS1915 22 00 00 36.6 233.3 2.7 29.3 -23 6292 No stop 11 19 00 --- 22 03 30 36.2 234.2 2.8 29.6 187 6346 11 15 31 11 19 40 J1905+0952 22 04 10 34.0 236.2 3.0 30.3 16 6346 11 19 40 11 21 40 =1903+097 22 06 11 33.7 236.7 3.0 30.5 120 6377 11 19 41 11 21 40 GRS1915 22 06 11 35.9 234.9 2.8 29.9 -23 6377 No stop 11 25 10 --- 22 09 41 35.4 235.8 2.9 30.3 187 6431 11 21 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 5 Mar 2021 Day 64 --- 11 25 10 J1905+0952 22 09 41 33.3 237.6 3.1 30.9 -24 6431 No stop 11 27 40 =1903+097 22 12 12 33.0 238.2 3.1 31.1 126 6469 11 25 11 11 27 40 GRS1915 22 12 12 35.1 236.5 2.9 30.6 -22 6469 No stop 11 31 10 --- 22 15 42 34.7 237.4 3.0 30.9 188 6523 11 27 41 11 31 50 J1905+0952 22 16 22 32.5 239.3 3.2 31.5 17 6523 11 31 50 11 33 50 =1903+097 22 18 23 32.2 239.8 3.2 31.7 120 6554 11 31 51 11 33 50 GRS1915 22 18 23 34.3 238.1 3.0 31.2 -22 6554 No stop 11 37 20 --- 22 21 53 33.9 239.0 3.1 31.5 188 6608 11 33 51 11 37 20 J1905+0952 22 21 53 31.7 240.7 3.3 32.0 -23 6608 No stop 11 39 50 =1903+097 22 24 24 31.4 241.3 3.3 32.2 127 6647 11 37 21 11 39 50 GRS1915 22 24 24 33.6 239.6 3.1 31.7 -22 6647 No stop 11 43 20 --- 22 27 54 33.1 240.5 3.2 32.0 188 6701 11 39 51 11 44 00 J1905+0952 22 28 34 30.9 242.3 3.4 32.5 17 6701 11 44 00 11 46 00 =1903+097 22 30 35 30.6 242.8 3.4 32.7 120 6732 11 44 01 11 46 00 J1913+0932 22 30 35 31.3 240.7 3.3 32.0 -24 6732 No stop 11 48 30 --- 22 33 05 31.0 241.3 3.3 32.2 126 6771 11 46 01 11 49 10 J1905+0952 22 33 45 30.2 243.5 3.5 32.9 15 6771 11 49 10 11 52 40 =1903+097 22 37 16 29.7 244.4 3.5 33.2 210 6825 11 49 11 11 54 00 J2253+1608 22 38 36 52.9 173.5 -0.3 -4.1 -152 6825 11 54 00 12 00 00 =3C454.3 22 44 37 53.0 175.9 -0.2 -2.6 208 6918 11 54 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess121.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 09.784147 0.00 GRS1915+105 10 51 26.57111 * 10 56 44.62477 10 58 46.80895 0.00 From catalog imbedded in main SCHED input file. * J1913+0932 19 11 00.869981 * 19 13 24.025348 19 14 22.931578 0.00 09 27 34.81592 * 09 32 45.37648 09 34 44.78753 0.00 From catalog imbedded in main SCHED input file. 1758+388 17 58 44.703954 * 18 00 24.765363 18 01 05.985930 0.01 * J1800+3848 38 48 32.47350 * 38 48 30.69748 38 48 11.69985 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 38.639105 0.13 * J1905+0952 09 47 30.15815 * 09 52 08.40750 09 53 54.19200 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 58.214842 0.65 * J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 26.32748 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 sess121.C2048 1 2 3 4 5 6 7 8 9 10 11 14 3.967 484.265 J1913+0932 sess121.C2048 1 2 3 4 5 6 7 8 9 10 11 14 0.375 42.444 J1800+3848 sess121.C2048 1 2 3 4 5 6 7 8 9 10 11 14 0.167 21.481 J1905+0952 sess121.C2048 1 2 3 4 5 6 7 8 9 10 11 14 2.850 348.727 J2253+1608 sess121.C2048 1 2 3 4 5 7 8 9 10 11 14 0.100 9.360 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 59.3 J1913+0932 59.4 J1800+3848 82.9 J1905+0952 61.3 J2253+1608 22.3 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