COVER INFORMATION Station: DARNHALL (Code Da ) 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 DARNHALL (Code Da ) 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: 4958.49 4958.49 Next BBC frequencies: 705.51 705.51 Next scan bandwidths: 64.00 64.00 12 30 00 J1800+3848 14 57 00 55.7 95.8 -3.1 -50.0 0 0 12 30 00 12 35 00 =1758+388 15 02 01 56.4 97.0 -3.0 -49.8 300 19 12 30 01 12 37 00 J1905+0952 15 04 01 25.3 108.3 -4.0 -35.3 4 19 12 37 00 12 39 30 =1903+097 15 06 32 25.6 108.8 -4.0 -35.2 150 29 12 37 01 12 39 30 GRS1915 15 06 32 25.2 106.0 -4.2 -36.0 -28 29 No stop 12 43 00 --- 15 10 02 25.7 106.8 -4.1 -35.8 182 43 12 39 31 12 43 00 J1905+0952 15 10 02 26.1 109.6 -3.9 -35.0 -29 43 No stop 12 45 30 =1903+097 15 12 33 26.5 110.2 -3.9 -34.8 121 52 12 43 01 12 45 30 GRS1915 15 12 33 26.0 107.3 -4.1 -35.7 -28 52 No stop 12 49 00 --- 15 16 03 26.5 108.1 -4.0 -35.5 182 66 12 45 31 12 49 40 J1905+0952 15 16 43 27.1 111.1 -3.8 -34.6 11 66 12 49 40 12 51 30 =1903+097 15 18 34 27.3 111.5 -3.8 -34.5 110 73 12 49 41 12 51 30 GRS1915 15 18 34 26.9 108.7 -4.0 -35.4 -28 73 No stop 12 55 00 --- 15 22 04 27.4 109.5 -3.9 -35.2 182 86 12 51 31 12 55 00 J1905+0952 15 22 04 27.8 112.3 -3.7 -34.3 -29 86 No stop 12 57 30 =1903+097 15 24 35 28.2 112.9 -3.7 -34.1 121 96 12 55 01 12 57 30 GRS1915 15 24 35 27.7 110.0 -3.9 -35.0 -28 96 No stop 13 01 00 --- 15 28 05 28.2 110.8 -3.8 -34.8 182 109 12 57 31 13 01 40 J1905+0952 15 28 45 28.7 113.9 -3.6 -33.8 11 109 13 01 40 13 03 30 =1903+097 15 30 36 29.0 114.3 -3.6 -33.7 110 117 13 01 41 13 03 30 GRS1915 15 30 36 28.6 111.4 -3.8 -34.7 -28 117 No stop 13 07 00 --- 15 34 06 29.1 112.2 -3.7 -34.4 182 130 13 03 31 13 07 00 J1905+0952 15 34 06 29.5 115.1 -3.5 -33.4 -29 130 No stop 13 09 30 =1903+097 15 36 37 29.8 115.7 -3.5 -33.3 121 140 13 07 01 13 09 30 GRS1915 15 36 37 29.4 112.8 -3.7 -34.3 -29 140 No stop 13 13 00 --- 15 40 07 29.9 113.6 -3.6 -34.0 181 153 13 09 31 13 13 40 J1905+0952 15 40 47 30.4 116.7 -3.4 -32.9 10 153 13 13 40 13 15 30 =1903+097 15 42 38 30.6 117.2 -3.4 -32.8 110 160 13 13 41 Schedule for DARNHALL (Code Da ) 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 15 30 GRS1915 15 42 38 30.2 114.2 -3.6 -33.9 -29 160 No stop 13 19 00 --- 15 46 08 30.7 115.0 -3.5 -33.6 181 174 13 15 31 13 19 00 J1905+0952 15 46 08 31.1 118.0 -3.3 -32.5 -30 174 No stop 13 21 30 =1903+097 15 48 39 31.4 118.6 -3.3 -32.3 120 184 13 19 01 13 21 30 GRS1915 15 48 39 31.1 115.6 -3.5 -33.4 -29 184 No stop 13 25 00 --- 15 52 09 31.5 116.5 -3.4 -33.1 181 197 13 21 31 13 25 40 J1905+0952 15 52 49 32.0 119.7 -3.2 -31.9 10 197 13 25 40 13 27 30 =1903+097 15 54 40 32.2 120.1 -3.2 -31.8 110 204 13 25 41 13 27 30 J1913+0932 15 54 40 30.9 118.4 -3.3 -32.3 -22 204 No stop 13 30 00 --- 15 57 10 31.3 119.0 -3.3 -32.1 128 214 13 27 31 13 30 40 J1905+0952 15 57 50 32.6 120.9 -3.1 -31.5 17 214 13 30 40 13 32 40 =1903+097 15 59 50 32.9 121.4 -3.1 -31.3 120 222 13 30 41 13 32 40 GRS1915 15 59 50 32.6 118.4 -3.3 -32.5 -29 222 No stop 13 36 10 --- 16 03 21 33.0 119.2 -3.2 -32.2 181 235 13 32 41 13 36 10 J1905+0952 16 03 21 33.3 122.3 -3.1 -31.0 -30 235 No stop 13 38 40 =1903+097 16 05 51 33.6 122.9 -3.0 -30.7 120 245 13 36 11 13 38 40 GRS1915 16 05 51 33.3 119.8 -3.2 -32.0 -29 245 No stop 13 42 10 --- 16 09 22 33.8 120.7 -3.1 -31.7 181 258 13 38 41 13 42 50 J1905+0952 16 10 02 34.2 124.0 -2.9 -30.3 10 258 13 42 50 13 44 40 =1903+097 16 11 52 34.4 124.5 -2.9 -30.1 110 265 13 42 51 13 44 40 GRS1915 16 11 52 34.1 121.4 -3.1 -31.4 -29 265 No stop 13 48 10 --- 16 15 23 34.6 122.2 -3.0 -31.1 181 279 13 44 41 13 48 10 J1905+0952 16 15 23 34.8 125.4 -2.9 -29.8 -30 279 No stop 13 50 40 =1903+097 16 17 53 35.1 126.0 -2.8 -29.5 120 289 13 48 11 13 50 40 GRS1915 16 17 53 34.9 122.9 -3.0 -30.9 -29 289 No stop 13 54 10 --- 16 21 24 35.3 123.8 -2.9 -30.5 181 302 13 50 41 13 54 50 J1905+0952 16 22 04 35.6 127.1 -2.7 -29.0 9 302 13 54 50 13 56 40 =1903+097 16 23 54 35.8 127.6 -2.7 -28.8 110 309 13 54 51 13 56 40 GRS1915 16 23 54 35.6 124.4 -2.9 -30.2 -30 309 No stop 14 00 10 --- 16 27 25 36.1 125.4 -2.8 -29.9 180 323 13 56 41 Schedule for DARNHALL (Code Da ) 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 --- 14 00 10 J1905+0952 16 27 25 36.3 128.6 -2.7 -28.4 -31 323 No stop 14 02 40 =1903+097 16 29 55 36.6 129.2 -2.6 -28.1 119 332 14 00 11 14 02 40 GRS1915 16 29 55 36.4 126.0 -2.8 -29.6 -30 332 No stop 14 06 10 --- 16 33 26 36.8 127.0 -2.7 -29.2 180 346 14 02 41 14 06 50 J1905+0952 16 34 06 37.0 130.4 -2.5 -27.6 9 346 14 06 50 14 08 40 =1903+097 16 35 56 37.2 130.9 -2.5 -27.4 110 353 14 06 51 14 08 40 GRS1915 16 35 56 37.1 127.6 -2.7 -28.9 -30 353 No stop 14 12 10 --- 16 39 27 37.5 128.6 -2.6 -28.5 180 366 14 08 41 14 12 10 J1905+0952 16 39 27 37.6 131.8 -2.5 -27.0 -31 366 No stop 14 14 40 =1903+097 16 41 57 37.9 132.5 -2.4 -26.7 119 376 14 12 11 14 14 40 GRS1915 16 41 57 37.8 129.3 -2.6 -28.2 -30 376 No stop 14 18 10 --- 16 45 28 38.2 130.2 -2.5 -27.8 180 390 14 14 41 14 18 50 J1905+0952 16 46 08 38.4 133.7 -2.3 -26.1 9 390 14 18 50 14 20 40 =1903+097 16 47 58 38.6 134.2 -2.3 -25.9 110 397 14 18 51 14 20 40 J1913+0932 16 47 58 37.4 132.2 -2.4 -26.8 -24 397 No stop 14 23 10 --- 16 50 29 37.7 132.9 -2.4 -26.4 126 406 14 20 41 14 23 50 J1905+0952 16 51 09 38.9 135.1 -2.3 -25.4 15 406 14 23 50 14 25 50 =1903+097 16 53 09 39.1 135.7 -2.2 -25.2 120 414 14 23 51 14 25 50 GRS1915 16 53 09 39.1 132.4 -2.4 -26.8 -30 414 No stop 14 29 20 --- 16 56 40 39.5 133.4 -2.3 -26.4 180 428 14 25 51 14 29 20 J1905+0952 16 56 40 39.5 136.7 -2.2 -24.7 -31 428 No stop 14 31 50 =1903+097 16 59 10 39.7 137.4 -2.1 -24.3 119 437 14 29 21 14 31 50 GRS1915 16 59 10 39.7 134.1 -2.3 -26.0 -30 437 No stop 14 35 20 --- 17 02 41 40.1 135.1 -2.2 -25.5 180 451 14 31 51 14 36 00 J1905+0952 17 03 21 40.2 138.7 -2.1 -23.7 8 451 14 36 00 14 37 50 =1903+097 17 05 11 40.3 139.2 -2.0 -23.4 110 458 14 36 01 14 37 50 GRS1915 17 05 11 40.4 135.8 -2.2 -25.2 -30 458 No stop 14 41 20 --- 17 08 42 40.7 136.9 -2.1 -24.7 180 471 14 37 51 14 41 20 J1905+0952 17 08 42 40.7 140.3 -2.0 -22.9 -32 471 No stop 14 43 50 =1903+097 17 11 12 40.9 141.0 -1.9 -22.5 118 481 14 41 21 Schedule for DARNHALL (Code Da ) 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 43 50 GRS1915 17 11 12 41.0 137.6 -2.1 -24.3 -31 481 No stop 14 47 20 --- 17 14 43 41.3 138.6 -2.0 -23.8 179 495 14 43 51 14 48 00 J1905+0952 17 15 23 41.3 142.3 -1.9 -21.9 8 495 14 48 00 14 49 50 =1903+097 17 17 13 41.5 142.8 -1.8 -21.6 110 502 14 48 01 14 49 50 GRS1915 17 17 13 41.6 139.4 -2.0 -23.4 -31 502 No stop 14 53 20 --- 17 20 44 41.9 140.5 -1.9 -22.9 179 515 14 49 51 14 53 20 J1905+0952 17 20 44 41.8 143.9 -1.8 -21.0 -32 515 No stop 14 55 50 =1903+097 17 23 14 42.0 144.7 -1.7 -20.6 118 525 14 53 21 14 55 50 GRS1915 17 23 14 42.2 141.2 -1.9 -22.5 -31 525 No stop 14 59 20 --- 17 26 45 42.5 142.3 -1.8 -21.9 179 538 14 55 51 15 00 00 J1905+0952 17 27 25 42.4 146.0 -1.7 -19.9 8 538 15 00 00 15 01 50 =1903+097 17 29 15 42.5 146.6 -1.6 -19.6 110 546 15 00 01 15 01 50 GRS1915 17 29 15 42.7 143.1 -1.8 -21.5 -31 546 No stop 15 05 20 --- 17 32 46 43.0 144.2 -1.7 -21.0 179 559 15 01 51 15 05 20 J1905+0952 17 32 46 42.8 147.7 -1.6 -19.0 -32 559 No stop 15 07 50 =1903+097 17 35 16 43.0 148.5 -1.5 -18.6 118 569 15 05 21 15 07 50 GRS1915 17 35 16 43.2 145.0 -1.7 -20.5 -31 569 No stop 15 11 20 --- 17 38 47 43.5 146.1 -1.6 -19.9 179 582 15 07 51 15 12 00 J1905+0952 17 39 27 43.3 149.8 -1.5 -17.8 8 582 15 12 00 15 13 50 =1903+097 17 41 17 43.5 150.4 -1.4 -17.5 110 589 15 12 01 15 13 50 J1913+0932 17 41 17 42.6 148.1 -1.6 -18.8 -26 589 No stop 15 16 20 --- 17 43 47 42.8 148.9 -1.5 -18.3 124 599 15 13 51 15 17 00 J1905+0952 17 44 28 43.7 151.4 -1.4 -16.9 13 599 15 17 00 15 19 00 =1903+097 17 46 28 43.8 152.1 -1.3 -16.6 120 607 15 17 01 15 19 00 GRS1915 17 46 28 44.2 148.5 -1.5 -18.6 -31 607 No stop 15 22 30 --- 17 49 59 44.4 149.7 -1.4 -18.0 179 620 15 19 01 15 22 30 J1905+0952 17 49 59 44.1 153.2 -1.3 -15.9 -33 620 No stop 15 25 00 =1903+097 17 52 29 44.2 154.1 -1.2 -15.4 117 630 15 22 31 15 25 00 GRS1915 17 52 29 44.6 150.5 -1.4 -17.5 -31 630 No stop 15 28 30 --- 17 55 59 44.9 151.7 -1.3 -16.9 179 643 15 25 01 Schedule for DARNHALL (Code Da ) 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 29 10 J1905+0952 17 56 40 44.5 155.5 -1.2 -14.6 7 643 15 29 10 15 31 00 =1903+097 17 58 30 44.6 156.1 -1.1 -14.3 110 651 15 29 11 15 31 00 GRS1915 17 58 30 45.0 152.5 -1.3 -16.4 -31 651 No stop 15 34 30 --- 18 02 00 45.3 153.7 -1.2 -15.7 179 664 15 31 01 15 34 30 J1905+0952 18 02 00 44.8 157.3 -1.1 -13.6 -33 664 No stop 15 37 00 =1903+097 18 04 31 45.0 158.1 -1.0 -13.1 117 674 15 34 31 15 37 00 GRS1915 18 04 31 45.4 154.5 -1.2 -15.2 -31 674 No stop 15 40 30 --- 18 08 01 45.7 155.7 -1.1 -14.6 179 687 15 37 01 15 41 10 J1905+0952 18 08 42 45.2 159.5 -1.0 -12.3 7 687 15 41 10 15 43 00 =1903+097 18 10 32 45.3 160.2 -0.9 -11.9 110 694 15 41 11 15 43 00 GRS1915 18 10 32 45.8 156.6 -1.1 -14.1 -31 694 No stop 15 46 30 --- 18 14 02 46.0 157.8 -1.0 -13.4 179 708 15 43 01 15 46 30 J1905+0952 18 14 02 45.5 161.4 -0.9 -11.2 -33 708 No stop 15 49 00 =1903+097 18 16 33 45.6 162.2 -0.8 -10.7 117 718 15 46 31 15 49 00 GRS1915 18 16 33 46.2 158.6 -1.0 -12.9 -31 718 No stop 15 52 30 --- 18 20 03 46.4 159.8 -0.9 -12.2 179 731 15 49 01 15 53 10 J1905+0952 18 20 44 45.8 163.7 -0.8 -9.8 7 731 15 53 10 15 55 00 =1903+097 18 22 34 45.8 164.3 -0.7 -9.5 110 738 15 53 11 15 55 00 GRS1915 18 22 34 46.5 160.7 -0.9 -11.6 -31 738 No stop 15 58 30 --- 18 26 04 46.6 161.9 -0.8 -10.9 179 752 15 55 01 15 58 30 J1905+0952 18 26 04 46.0 165.5 -0.7 -8.7 -33 752 No stop 16 01 00 =1903+097 18 28 35 46.1 166.4 -0.6 -8.2 117 761 15 58 31 16 01 00 GRS1915 18 28 35 46.8 162.8 -0.8 -10.4 -31 761 No stop 16 04 30 --- 18 32 05 46.9 164.1 -0.7 -9.7 179 775 16 01 01 16 05 10 J1905+0952 18 32 46 46.2 167.9 -0.6 -7.3 7 775 16 05 10 16 07 00 =1903+097 18 34 36 46.3 168.5 -0.5 -6.9 110 782 16 05 11 16 07 00 J1913+0932 18 34 36 45.7 165.9 -0.7 -8.5 -27 782 No stop 16 09 30 --- 18 37 06 45.8 166.8 -0.6 -8.0 123 792 16 07 01 16 10 00 J1800+3848 18 37 36 74.3 207.3 0.6 20.7 -118 792 16 10 00 16 15 00 =1758+388 18 42 37 74.0 210.6 0.7 23.1 182 811 16 10 01 Schedule for DARNHALL (Code Da ) 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 15 40 J1905+0952 18 43 17 46.5 171.6 -0.4 -5.1 -98 811 16 15 40 16 17 40 =1903+097 18 45 18 46.5 172.4 -0.4 -4.6 22 819 16 15 41 16 17 40 GRS1915 18 45 18 47.4 168.8 -0.5 -6.8 -31 819 No stop 16 21 10 --- 18 48 48 47.5 170.0 -0.5 -6.1 179 832 16 17 41 16 21 10 J1905+0952 18 48 48 46.6 173.6 -0.3 -3.9 -33 832 No stop 16 23 40 =1903+097 18 51 19 46.6 174.5 -0.3 -3.3 117 842 16 21 11 16 23 40 GRS1915 18 51 19 47.5 171.0 -0.4 -5.5 -31 842 No stop 16 27 10 --- 18 54 49 47.6 172.2 -0.4 -4.7 179 855 16 23 41 16 27 50 J1905+0952 18 55 29 46.7 176.0 -0.2 -2.4 8 855 16 27 50 16 29 40 =1903+097 18 57 20 46.7 176.7 -0.2 -2.0 110 862 16 27 51 16 29 40 GRS1915 18 57 20 47.7 173.1 -0.3 -4.2 -31 862 No stop 16 33 10 --- 19 00 50 47.7 174.4 -0.3 -3.4 179 876 16 29 41 16 33 10 J1905+0952 19 00 50 46.7 177.9 -0.1 -1.3 -32 876 No stop 16 35 40 =1903+097 19 03 21 46.7 178.8 -0.1 -0.7 118 886 16 33 11 16 35 40 GRS1915 19 03 21 47.8 175.3 -0.2 -2.9 -31 886 No stop 16 39 10 --- 19 06 51 47.8 176.6 -0.2 -2.1 179 899 16 35 41 16 39 50 J1905+0952 19 07 31 46.7 180.3 0.0 0.2 8 899 16 39 50 16 41 40 =1903+097 19 09 22 46.7 181.0 0.0 0.6 110 906 16 39 51 16 41 40 GRS1915 19 09 22 47.8 177.5 -0.1 -1.5 -31 906 No stop 16 45 10 --- 19 12 52 47.8 178.8 -0.1 -0.7 179 920 16 41 41 16 45 10 J1905+0952 19 12 52 46.7 182.2 0.1 1.4 -32 920 No stop 16 47 40 =1903+097 19 15 22 46.7 183.1 0.1 1.9 118 929 16 45 11 16 47 40 GRS1915 19 15 22 47.8 179.7 -0.0 -0.2 -30 929 No stop 16 51 10 --- 19 18 53 47.8 181.0 0.0 0.6 180 943 16 47 41 16 51 50 J1905+0952 19 19 33 46.7 184.6 0.2 2.8 8 943 16 51 50 16 53 40 =1903+097 19 21 23 46.6 185.3 0.2 3.2 110 950 16 51 51 16 53 40 GRS1915 19 21 23 47.8 181.9 0.1 1.2 -30 950 No stop 16 57 10 --- 19 24 54 47.8 183.2 0.1 2.0 180 964 16 53 41 16 57 10 J1905+0952 19 24 54 46.6 186.6 0.3 4.0 -32 964 No stop 16 59 40 =1903+097 19 27 24 46.5 187.5 0.3 4.5 118 973 16 57 11 Schedule for DARNHALL (Code Da ) 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 59 40 GRS1915 19 27 24 47.8 184.1 0.2 2.5 -30 973 No stop 17 03 10 --- 19 30 55 47.7 185.4 0.2 3.3 180 987 16 59 41 17 03 50 J1905+0952 19 31 35 46.5 188.9 0.4 5.4 8 987 17 03 50 17 05 40 =1903+097 19 33 25 46.4 189.6 0.4 5.8 110 994 17 03 51 17 05 40 J1913+0932 19 33 25 46.3 186.8 0.3 4.1 -28 994 No stop 17 08 10 --- 19 35 56 46.2 187.7 0.4 4.7 122 1004 17 05 41 17 08 50 J1905+0952 19 36 36 46.3 190.7 0.5 6.5 11 1004 17 08 50 17 10 50 =1903+097 19 38 36 46.3 191.4 0.5 6.9 120 1011 17 08 51 17 10 50 GRS1915 19 38 36 47.6 188.2 0.4 5.0 -30 1011 No stop 17 14 20 --- 19 42 07 47.5 189.5 0.4 5.8 180 1025 17 10 51 17 14 20 J1905+0952 19 42 07 46.2 192.7 0.6 7.7 -31 1025 No stop 17 16 50 =1903+097 19 44 37 46.1 193.6 0.6 8.2 119 1034 17 14 21 17 16 50 GRS1915 19 44 37 47.4 190.4 0.5 6.3 -29 1034 No stop 17 20 20 --- 19 48 08 47.3 191.6 0.5 7.1 181 1048 17 16 51 17 21 00 J1905+0952 19 48 48 45.9 195.0 0.7 9.1 9 1048 17 21 00 17 22 50 =1903+097 19 50 38 45.8 195.7 0.7 9.5 110 1055 17 21 01 17 22 50 GRS1915 19 50 38 47.3 192.5 0.6 7.6 -29 1055 No stop 17 26 20 --- 19 54 09 47.1 193.8 0.6 8.4 181 1069 17 22 51 17 26 20 J1905+0952 19 54 09 45.7 196.9 0.8 10.2 -31 1069 No stop 17 28 50 =1903+097 19 56 39 45.6 197.7 0.8 10.7 119 1078 17 26 21 17 28 50 GRS1915 19 56 39 47.1 194.7 0.7 8.9 -29 1078 No stop 17 32 20 --- 20 00 10 46.9 195.9 0.7 9.6 181 1092 17 28 51 17 33 00 J1905+0952 20 00 50 45.4 199.2 0.9 11.5 10 1092 17 33 00 17 34 50 =1903+097 20 02 40 45.3 199.8 0.9 11.9 110 1099 17 33 01 17 34 50 GRS1915 20 02 40 46.8 196.8 0.8 10.2 -29 1099 No stop 17 38 20 --- 20 06 11 46.6 198.0 0.8 10.9 181 1112 17 34 51 17 38 20 J1905+0952 20 06 11 45.1 201.0 1.0 12.6 -30 1112 No stop 17 40 50 =1903+097 20 08 41 45.0 201.9 1.0 13.1 120 1122 17 38 21 17 40 50 GRS1915 20 08 41 46.5 198.9 0.9 11.4 -28 1122 No stop 17 44 20 --- 20 12 12 46.4 200.1 0.9 12.1 182 1136 17 40 51 Schedule for DARNHALL (Code Da ) 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 45 00 J1905+0952 20 12 52 44.7 203.3 1.1 13.9 10 1136 17 45 00 17 46 50 =1903+097 20 14 42 44.6 203.9 1.1 14.3 110 1143 17 45 01 17 46 50 GRS1915 20 14 42 46.2 201.0 1.0 12.7 -28 1143 No stop 17 50 20 --- 20 18 13 46.0 202.2 1.0 13.4 182 1156 17 46 51 17 50 20 J1905+0952 20 18 13 44.4 205.1 1.2 14.9 -29 1156 No stop 17 52 50 =1903+097 20 20 43 44.2 205.9 1.2 15.4 121 1166 17 50 21 17 52 50 GRS1915 20 20 43 45.9 203.1 1.1 13.9 -28 1166 No stop 17 56 20 --- 20 24 14 45.7 204.3 1.1 14.5 182 1179 17 52 51 17 57 00 J1905+0952 20 24 54 44.0 207.3 1.3 16.2 11 1179 17 57 00 17 58 50 =1903+097 20 26 44 43.8 207.9 1.3 16.5 110 1186 17 57 01 17 58 50 J1913+0932 20 26 44 44.0 205.2 1.2 15.0 -27 1186 No stop 18 01 20 --- 20 29 15 43.9 206.0 1.2 15.5 123 1196 17 58 51 18 02 00 J1905+0952 20 29 55 43.6 208.9 1.4 17.1 12 1196 18 02 00 18 04 00 =1903+097 20 31 55 43.5 209.6 1.4 17.5 120 1204 18 02 01 18 04 00 GRS1915 20 31 55 45.2 206.9 1.3 16.0 -27 1204 No stop 18 07 30 --- 20 35 26 44.9 208.0 1.3 16.7 183 1217 18 04 01 18 07 30 J1905+0952 20 35 26 43.2 210.7 1.5 18.1 -28 1217 No stop 18 10 00 =1903+097 20 37 56 43.0 211.5 1.5 18.5 122 1227 18 07 31 18 10 00 GRS1915 20 37 56 44.8 208.9 1.4 17.2 -27 1227 No stop 18 13 30 --- 20 41 27 44.5 210.0 1.4 17.8 183 1241 18 10 01 18 14 10 J1905+0952 20 42 07 42.7 212.8 1.6 19.3 12 1241 18 14 10 18 16 10 =1903+097 20 44 07 42.5 213.5 1.6 19.6 120 1248 18 14 11 18 16 10 GRS1915 20 44 07 44.3 210.9 1.5 18.3 -27 1248 No stop 18 19 40 --- 20 47 38 44.0 212.0 1.5 18.9 183 1262 18 16 11 18 19 40 J1905+0952 20 47 38 42.2 214.6 1.7 20.2 -28 1262 No stop 18 22 10 =1903+097 20 50 08 42.0 215.3 1.7 20.6 122 1271 18 19 41 18 22 10 GRS1915 20 50 08 43.8 212.8 1.6 19.3 -26 1271 No stop 18 25 40 --- 20 53 39 43.5 214.0 1.6 20.0 184 1285 18 22 11 18 26 20 J1905+0952 20 54 19 41.6 216.6 1.8 21.3 13 1285 18 26 20 18 28 20 =1903+097 20 56 19 41.5 217.2 1.8 21.6 120 1293 18 26 21 Schedule for DARNHALL (Code Da ) 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 28 20 GRS1915 20 56 19 43.3 214.8 1.7 20.4 -26 1293 No stop 18 31 50 --- 20 59 50 43.0 215.9 1.7 21.0 184 1306 18 28 21 18 31 50 J1905+0952 20 59 50 41.1 218.3 1.9 22.2 -27 1306 No stop 18 34 20 =1903+097 21 02 20 40.9 219.1 1.9 22.6 123 1316 18 31 51 18 34 20 GRS1915 21 02 20 42.8 216.7 1.8 21.4 -26 1316 No stop 18 37 50 --- 21 05 51 42.5 217.8 1.8 22.0 184 1329 18 34 21 18 38 30 J1905+0952 21 06 31 40.5 220.3 2.0 23.2 13 1329 18 38 30 18 40 30 =1903+097 21 08 31 40.3 220.9 2.0 23.5 120 1337 18 38 31 18 40 30 GRS1915 21 08 31 42.2 218.6 1.9 22.4 -25 1337 No stop 18 44 00 --- 21 12 02 41.9 219.7 1.9 23.0 185 1351 18 40 31 18 44 00 J1905+0952 21 12 02 39.9 222.0 2.1 24.0 -26 1351 No stop 18 46 30 =1903+097 21 14 32 39.7 222.7 2.1 24.4 124 1360 18 44 01 18 46 30 GRS1915 21 14 32 41.6 220.4 2.0 23.3 -25 1360 No stop 18 50 00 --- 21 18 03 41.3 221.5 2.0 23.9 185 1374 18 46 31 18 50 40 J1905+0952 21 18 43 39.3 223.9 2.2 25.0 14 1374 18 50 40 18 52 40 =1903+097 21 20 43 39.1 224.5 2.2 25.2 120 1382 18 50 41 18 52 40 J1913+0932 21 20 43 39.6 222.1 2.1 24.0 -26 1382 No stop 18 55 10 --- 21 23 13 39.3 222.8 2.1 24.4 124 1391 18 52 41 18 55 50 J1905+0952 21 23 54 38.7 225.4 2.3 25.7 13 1391 18 55 50 18 57 50 =1903+097 21 25 54 38.5 226.0 2.3 25.9 120 1399 18 55 51 18 57 50 GRS1915 21 25 54 40.5 223.8 2.2 25.0 -24 1399 No stop 19 01 20 --- 21 29 24 40.1 224.8 2.2 25.5 186 1413 18 57 51 19 01 20 J1905+0952 21 29 24 38.1 226.9 2.4 26.4 -26 1413 No stop 19 03 50 =1903+097 21 31 55 37.8 227.6 2.4 26.7 124 1422 19 01 21 19 03 50 GRS1915 21 31 55 39.9 225.6 2.3 25.9 -24 1422 No stop 19 07 20 --- 21 35 25 39.5 226.6 2.3 26.3 186 1436 19 03 51 19 08 00 J1905+0952 21 36 06 37.4 228.8 2.5 27.3 15 1436 19 08 00 19 10 00 =1903+097 21 38 06 37.2 229.3 2.5 27.5 120 1443 19 08 01 19 10 00 GRS1915 21 38 06 39.2 227.3 2.4 26.7 -24 1443 No stop 19 13 30 --- 21 41 36 38.8 228.3 2.4 27.1 186 1457 19 10 01 Schedule for DARNHALL (Code Da ) 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 13 30 J1905+0952 21 41 36 36.8 230.3 2.6 27.9 -25 1457 No stop 19 16 00 =1903+097 21 44 07 36.5 231.0 2.6 28.2 125 1467 19 13 31 19 16 00 GRS1915 21 44 07 38.5 229.0 2.5 27.5 -24 1467 No stop 19 19 30 --- 21 47 37 38.1 230.0 2.5 27.9 186 1480 19 16 01 19 20 10 J1905+0952 21 48 18 36.0 232.1 2.7 28.7 15 1480 19 20 10 19 22 10 =1903+097 21 50 18 35.7 232.6 2.7 28.9 120 1488 19 20 11 19 22 10 GRS1915 21 50 18 37.8 230.7 2.6 28.2 -25 1488 No stop 19 25 40 --- 21 53 48 37.4 231.7 2.6 28.6 185 1501 19 22 11 19 25 40 J1905+0952 21 53 48 35.3 233.6 2.8 29.3 -25 1501 No stop 19 28 10 =1903+097 21 56 19 35.0 234.2 2.8 29.6 125 1511 19 25 41 19 28 10 GRS1915 21 56 19 37.1 232.4 2.7 28.9 -25 1511 No stop 19 31 40 --- 21 59 49 36.7 233.3 2.7 29.3 185 1525 19 28 11 19 32 20 J1905+0952 22 00 30 34.5 235.3 2.9 30.0 15 1525 19 32 20 19 34 20 =1903+097 22 02 30 34.2 235.8 2.9 30.2 120 1532 19 32 21 19 34 20 J1913+0932 22 02 30 34.9 233.6 2.8 29.3 -25 1532 No stop 19 36 50 --- 22 05 00 34.6 234.3 2.8 29.6 125 1542 19 34 21 19 37 30 J1905+0952 22 05 40 33.9 236.6 3.0 30.6 14 1542 19 37 30 19 39 30 =1903+097 22 07 41 33.6 237.2 3.0 30.8 120 1550 19 37 31 19 39 30 GRS1915 22 07 41 35.7 235.4 2.9 30.2 -25 1550 No stop 19 43 00 --- 22 11 11 35.3 236.3 2.9 30.5 185 1563 19 39 31 19 43 00 J1905+0952 22 11 11 33.2 238.0 3.1 31.1 -25 1563 No stop 19 45 30 =1903+097 22 13 42 32.8 238.7 3.1 31.3 125 1573 19 43 01 19 45 30 GRS1915 22 13 42 35.0 236.9 3.0 30.8 -25 1573 No stop 19 49 00 --- 22 17 12 34.5 237.8 3.0 31.1 185 1586 19 45 31 19 49 40 J1905+0952 22 17 52 32.3 239.7 3.2 31.7 15 1586 19 49 40 19 51 40 =1903+097 22 19 53 32.0 240.2 3.2 31.9 120 1594 19 49 41 19 51 40 GRS1915 22 19 53 34.2 238.5 3.1 31.4 -25 1594 No stop 19 55 10 --- 22 23 23 33.7 239.4 3.1 31.7 185 1608 19 51 41 19 55 10 J1905+0952 22 23 23 31.6 241.1 3.3 32.2 -25 1608 No stop 19 57 40 =1903+097 22 25 54 31.3 241.7 3.3 32.4 125 1617 19 55 11 Schedule for DARNHALL (Code Da ) 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 57 40 GRS1915 22 25 54 33.4 240.0 3.2 31.9 -25 1617 No stop 20 01 10 --- 22 29 24 33.0 240.9 3.2 32.3 185 1631 19 57 41 20 01 50 J1905+0952 22 30 04 30.7 242.7 3.4 32.7 14 1631 20 01 50 20 03 50 =1903+097 22 32 05 30.4 243.2 3.4 32.9 120 1639 20 01 51 20 03 50 GRS1915 22 32 05 32.6 241.5 3.3 32.5 -25 1639 No stop 20 07 20 --- 22 35 35 32.1 242.4 3.3 32.8 185 1652 20 03 51 20 07 20 J1905+0952 22 35 35 30.0 244.0 3.5 33.2 -26 1652 No stop 20 09 50 =1903+097 22 38 06 29.6 244.6 3.5 33.4 124 1662 20 07 21 20 09 50 GRS1915 22 38 06 31.8 243.0 3.4 33.0 -25 1662 No stop 20 13 20 --- 22 41 36 31.3 243.9 3.4 33.3 185 1675 20 09 51 20 14 00 J1905+0952 22 42 16 29.1 245.6 3.6 33.7 14 1675 20 14 00 20 16 00 =1903+097 22 44 17 28.8 246.1 3.6 33.8 120 1683 20 14 01 20 16 00 J1913+0932 22 44 17 29.6 244.0 3.5 33.1 -24 1683 No stop 20 18 30 --- 22 46 47 29.2 244.6 3.5 33.3 126 1693 20 16 01 20 19 10 J1905+0952 22 47 27 28.3 246.8 3.7 34.0 15 1693 20 19 10 20 22 40 =1903+097 22 50 58 27.9 247.6 3.7 34.3 210 1706 20 19 11 20 24 00 J2253+1608 22 52 18 53.1 178.9 -0.0 -0.7 -146 1706 20 24 00 20 30 00 =3C454.3 22 58 19 53.1 181.3 0.1 0.8 214 1729 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: 16 Station: DARNHALL Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 2 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 5664.00 5664.00 Net SB= U U IF SB = L L Pol. = RCP LCP BBC = 1 9 BBC SB= L L IF = A1 B1 The following frequency sets based on these setups were used. Frequency Set: 14 Setup file default. Used with PCAL = off LO sum= 4958.49 4958.49 BBC fr= 705.51 705.51 Bandwd= 64.00 64.00 Matching frequency sets: 14 15 16 17 18 Track assignments are: track1= 1, 2 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