COVER INFORMATION Station: DARNHALL (Code Da ) 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 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 5 Mar 2021 Day 64 --- Next scan frequencies: 4926.49 4926.49 Next BBC frequencies: 737.51 737.51 Next scan bandwidths: 64.00 64.00 04 00 00 J1800+3848 14 42 22 53.5 92.7 -3.3 -50.2 0 0 04 00 00 04 05 00 =1758+388 14 47 23 54.2 93.7 -3.2 -50.2 300 19 04 00 01 04 07 00 J1905+0952 14 49 24 23.2 105.0 -4.3 -36.0 4 19 04 07 00 04 09 30 =1903+097 14 51 54 23.5 105.6 -4.2 -35.9 150 29 04 07 01 04 09 30 GRS1915 14 51 54 23.0 102.8 -4.4 -36.6 -28 29 No stop 04 13 00 --- 14 55 24 23.5 103.6 -4.3 -36.4 182 43 04 09 31 04 13 00 J1905+0952 14 55 24 24.0 106.4 -4.2 -35.7 -29 43 No stop 04 15 30 =1903+097 14 57 55 24.4 106.9 -4.1 -35.6 121 52 04 13 01 04 15 30 GRS1915 14 57 55 23.9 104.1 -4.3 -36.3 -28 52 No stop 04 19 00 --- 15 01 25 24.4 104.9 -4.2 -36.2 182 66 04 15 31 04 19 40 J1905+0952 15 02 06 25.0 107.8 -4.1 -35.4 11 66 04 19 40 04 21 30 =1903+097 15 03 56 25.3 108.2 -4.0 -35.3 110 73 04 19 41 04 21 30 GRS1915 15 03 56 24.8 105.4 -4.2 -36.1 -28 73 No stop 04 25 00 --- 15 07 26 25.3 106.2 -4.1 -35.9 182 86 04 21 31 04 25 00 J1905+0952 15 07 26 25.8 109.0 -4.0 -35.1 -29 86 No stop 04 27 30 =1903+097 15 09 57 26.1 109.6 -3.9 -35.0 121 96 04 25 01 04 27 30 GRS1915 15 09 57 25.6 106.8 -4.1 -35.8 -28 96 No stop 04 31 00 --- 15 13 27 26.1 107.5 -4.0 -35.6 182 109 04 27 31 04 31 40 J1905+0952 15 14 08 26.7 110.5 -3.9 -34.8 11 109 04 31 40 04 33 30 =1903+097 15 15 58 27.0 110.9 -3.8 -34.6 110 117 04 31 41 04 33 30 GRS1915 15 15 58 26.5 108.1 -4.0 -35.5 -28 117 No stop 04 37 00 --- 15 19 28 27.0 108.9 -3.9 -35.3 182 130 04 33 31 04 37 00 J1905+0952 15 19 28 27.5 111.7 -3.8 -34.4 -29 130 No stop 04 39 30 =1903+097 15 21 59 27.8 112.3 -3.7 -34.3 121 140 04 37 01 04 39 30 GRS1915 15 21 59 27.4 109.5 -3.9 -35.2 -28 140 No stop 04 43 00 --- 15 25 29 27.9 110.2 -3.8 -35.0 182 153 04 39 31 04 43 40 J1905+0952 15 26 10 28.4 113.3 -3.7 -34.0 11 153 04 43 40 04 45 30 =1903+097 15 28 00 28.6 113.7 -3.6 -33.9 110 160 04 43 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 5 Mar 2021 Day 64 --- 04 45 30 GRS1915 15 28 00 28.2 110.8 -3.8 -34.8 -28 160 No stop 04 49 00 --- 15 31 30 28.7 111.6 -3.7 -34.6 182 174 04 45 31 04 49 00 J1905+0952 15 31 30 29.1 114.5 -3.6 -33.6 -29 174 No stop 04 51 30 =1903+097 15 34 01 29.5 115.1 -3.5 -33.4 121 184 04 49 01 04 51 30 GRS1915 15 34 01 29.0 112.2 -3.7 -34.4 -29 184 No stop 04 55 00 --- 15 37 31 29.5 113.0 -3.6 -34.2 181 197 04 51 31 04 55 40 J1905+0952 15 38 12 30.0 116.1 -3.5 -33.1 10 197 04 55 40 04 57 30 =1903+097 15 40 02 30.3 116.5 -3.4 -33.0 110 204 04 55 41 04 57 30 J1913+0932 15 40 02 29.0 114.9 -3.6 -33.5 -22 204 No stop 05 00 00 --- 15 42 32 29.3 115.5 -3.5 -33.3 128 214 04 57 31 05 00 40 J1905+0952 15 43 12 30.7 117.3 -3.4 -32.7 17 214 05 00 40 05 02 40 =1903+097 15 45 13 31.0 117.8 -3.4 -32.6 120 222 05 00 41 05 02 40 GRS1915 15 45 13 30.6 114.8 -3.5 -33.7 -29 222 No stop 05 06 10 --- 15 48 43 31.1 115.7 -3.5 -33.4 181 235 05 02 41 05 06 10 J1905+0952 15 48 43 31.4 118.6 -3.3 -32.3 -30 235 No stop 05 08 40 =1903+097 15 51 14 31.8 119.3 -3.3 -32.1 120 245 05 06 11 05 08 40 GRS1915 15 51 14 31.4 116.3 -3.4 -33.2 -29 245 No stop 05 12 10 --- 15 54 44 31.9 117.1 -3.4 -32.9 181 258 05 08 41 05 12 50 J1905+0952 15 55 24 32.3 120.3 -3.2 -31.7 10 258 05 12 50 05 14 40 =1903+097 15 57 15 32.5 120.7 -3.2 -31.5 110 265 05 12 51 05 14 40 GRS1915 15 57 15 32.2 117.7 -3.3 -32.7 -29 265 No stop 05 18 10 --- 16 00 45 32.7 118.6 -3.3 -32.4 181 279 05 14 41 05 18 10 J1905+0952 16 00 45 33.0 121.6 -3.1 -31.2 -30 279 No stop 05 20 40 =1903+097 16 03 16 33.3 122.3 -3.1 -31.0 120 289 05 18 11 05 20 40 GRS1915 16 03 16 33.0 119.2 -3.2 -32.2 -29 289 No stop 05 24 10 --- 16 06 46 33.5 120.1 -3.2 -31.9 181 302 05 20 41 05 24 50 J1905+0952 16 07 26 33.8 123.3 -3.0 -30.6 10 302 05 24 50 05 26 40 =1903+097 16 09 17 34.1 123.8 -3.0 -30.4 110 309 05 24 51 05 26 40 GRS1915 16 09 17 33.8 120.7 -3.1 -31.7 -29 309 No stop 05 30 10 --- 16 12 47 34.2 121.6 -3.1 -31.4 181 323 05 26 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 5 Mar 2021 Day 64 --- 05 30 10 J1905+0952 16 12 47 34.5 124.7 -2.9 -30.0 -30 323 No stop 05 32 40 =1903+097 16 15 18 34.8 125.3 -2.9 -29.8 120 332 05 30 11 05 32 40 GRS1915 16 15 18 34.5 122.2 -3.0 -31.1 -29 332 No stop 05 36 10 --- 16 18 48 35.0 123.1 -3.0 -30.8 181 346 05 32 41 05 36 50 J1905+0952 16 19 28 35.3 126.4 -2.8 -29.3 9 346 05 36 50 05 38 40 =1903+097 16 21 19 35.5 126.9 -2.8 -29.1 110 353 05 36 51 05 38 40 GRS1915 16 21 19 35.3 123.8 -2.9 -30.5 -30 353 No stop 05 42 10 --- 16 24 49 35.7 124.7 -2.9 -30.2 180 366 05 38 41 05 42 10 J1905+0952 16 24 49 35.9 127.9 -2.7 -28.7 -31 366 No stop 05 44 40 =1903+097 16 27 20 36.2 128.5 -2.7 -28.4 119 376 05 42 11 05 44 40 GRS1915 16 27 20 36.0 125.3 -2.8 -29.9 -30 376 No stop 05 48 10 --- 16 30 50 36.5 126.3 -2.8 -29.5 180 390 05 44 41 05 48 50 J1905+0952 16 31 30 36.7 129.7 -2.6 -27.9 9 390 05 48 50 05 50 40 =1903+097 16 33 21 36.9 130.2 -2.6 -27.7 110 397 05 48 51 05 50 40 J1913+0932 16 33 21 35.8 128.3 -2.7 -28.5 -23 397 No stop 05 53 10 --- 16 35 51 36.1 128.9 -2.6 -28.2 127 406 05 50 41 05 53 50 J1905+0952 16 36 31 37.3 131.0 -2.5 -27.3 16 406 05 53 50 05 55 50 =1903+097 16 38 31 37.5 131.6 -2.5 -27.1 120 414 05 53 51 05 55 50 GRS1915 16 38 31 37.4 128.3 -2.6 -28.6 -30 414 No stop 05 59 20 --- 16 42 02 37.8 129.3 -2.6 -28.2 180 428 05 55 51 05 59 20 J1905+0952 16 42 02 37.9 132.6 -2.4 -26.6 -31 428 No stop 06 01 50 =1903+097 16 44 32 38.2 133.3 -2.4 -26.3 119 437 05 59 21 06 01 50 GRS1915 16 44 32 38.1 130.0 -2.5 -27.9 -30 437 No stop 06 05 20 --- 16 48 03 38.5 130.9 -2.5 -27.5 180 451 06 01 51 06 06 00 J1905+0952 16 48 43 38.6 134.4 -2.3 -25.8 9 451 06 06 00 06 07 50 =1903+097 16 50 33 38.8 135.0 -2.3 -25.5 110 458 06 06 01 06 07 50 GRS1915 16 50 33 38.8 131.6 -2.4 -27.2 -30 458 No stop 06 11 20 --- 16 54 04 39.2 132.6 -2.4 -26.7 180 471 06 07 51 06 11 20 J1905+0952 16 54 04 39.2 136.0 -2.2 -25.0 -31 471 No stop 06 13 50 =1903+097 16 56 34 39.5 136.7 -2.2 -24.7 119 481 06 11 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 5 Mar 2021 Day 64 --- 06 13 50 GRS1915 16 56 34 39.4 133.3 -2.3 -26.4 -30 481 No stop 06 17 20 --- 17 00 05 39.8 134.4 -2.3 -25.9 180 495 06 13 51 06 18 00 J1905+0952 17 00 45 39.9 137.9 -2.1 -24.1 8 495 06 18 00 06 19 50 =1903+097 17 02 35 40.1 138.4 -2.1 -23.8 110 502 06 18 01 06 19 50 GRS1915 17 02 35 40.1 135.1 -2.2 -25.6 -30 502 No stop 06 23 20 --- 17 06 06 40.5 136.1 -2.2 -25.1 180 515 06 19 51 06 23 20 J1905+0952 17 06 06 40.4 139.5 -2.0 -23.3 -32 515 No stop 06 25 50 =1903+097 17 08 36 40.7 140.2 -2.0 -22.9 118 525 06 23 21 06 25 50 GRS1915 17 08 36 40.7 136.8 -2.1 -24.7 -31 525 No stop 06 29 20 --- 17 12 07 41.1 137.9 -2.1 -24.2 179 538 06 25 51 06 30 00 J1905+0952 17 12 47 41.1 141.5 -1.9 -22.3 8 538 06 30 00 06 31 50 =1903+097 17 14 37 41.2 142.0 -1.9 -22.0 110 546 06 30 01 06 31 50 GRS1915 17 14 37 41.3 138.6 -2.0 -23.8 -31 546 No stop 06 35 20 --- 17 18 08 41.7 139.7 -2.0 -23.3 179 559 06 31 51 06 35 20 J1905+0952 17 18 08 41.6 143.1 -1.8 -21.4 -32 559 No stop 06 37 50 =1903+097 17 20 38 41.8 143.9 -1.8 -21.0 118 569 06 35 21 06 37 50 GRS1915 17 20 38 41.9 140.4 -1.9 -22.9 -31 569 No stop 06 41 20 --- 17 24 09 42.2 141.5 -1.9 -22.3 179 582 06 37 51 06 42 00 J1905+0952 17 24 49 42.1 145.2 -1.7 -20.3 8 582 06 42 00 06 43 50 =1903+097 17 26 39 42.3 145.8 -1.7 -20.0 110 589 06 42 01 06 43 50 J1913+0932 17 26 39 41.3 143.5 -1.8 -21.2 -25 589 No stop 06 46 20 --- 17 29 10 41.5 144.3 -1.8 -20.8 125 599 06 43 51 06 47 00 J1905+0952 17 29 50 42.6 146.7 -1.6 -19.5 14 599 06 47 00 06 49 00 =1903+097 17 31 50 42.7 147.4 -1.6 -19.2 120 607 06 47 01 06 49 00 GRS1915 17 31 50 42.9 143.9 -1.7 -21.1 -31 607 No stop 06 52 30 --- 17 35 21 43.2 145.0 -1.7 -20.5 179 620 06 49 01 06 52 30 J1905+0952 17 35 21 43.0 148.5 -1.5 -18.5 -32 620 No stop 06 55 00 =1903+097 17 37 51 43.2 149.3 -1.5 -18.1 118 630 06 52 31 06 55 00 GRS1915 17 37 51 43.5 145.8 -1.6 -20.1 -31 630 No stop 06 58 30 --- 17 41 22 43.7 146.9 -1.6 -19.5 179 643 06 55 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 5 Mar 2021 Day 64 --- 06 59 10 J1905+0952 17 42 02 43.5 150.6 -1.4 -17.4 8 643 06 59 10 07 01 00 =1903+097 17 43 52 43.6 151.2 -1.4 -17.0 110 651 06 59 11 07 01 00 GRS1915 17 43 52 43.9 147.7 -1.5 -19.1 -31 651 No stop 07 04 30 --- 17 47 23 44.2 148.8 -1.5 -18.4 179 664 07 01 01 07 04 30 J1905+0952 17 47 23 43.9 152.4 -1.3 -16.4 -33 664 No stop 07 07 00 =1903+097 17 49 53 44.1 153.2 -1.3 -15.9 117 674 07 04 31 07 07 00 GRS1915 17 49 53 44.4 149.7 -1.4 -18.0 -31 674 No stop 07 10 30 --- 17 53 24 44.7 150.8 -1.4 -17.3 179 687 07 07 01 07 11 10 J1905+0952 17 54 04 44.3 154.6 -1.2 -15.1 7 687 07 11 10 07 13 00 =1903+097 17 55 54 44.5 155.2 -1.2 -14.8 110 694 07 11 11 07 13 00 GRS1915 17 55 54 44.9 151.6 -1.3 -16.9 -31 694 No stop 07 16 30 --- 17 59 25 45.1 152.8 -1.3 -16.2 179 708 07 13 01 07 16 30 J1905+0952 17 59 25 44.7 156.4 -1.1 -14.1 -33 708 No stop 07 19 00 =1903+097 18 01 55 44.8 157.2 -1.1 -13.6 117 718 07 16 31 07 19 00 GRS1915 18 01 55 45.3 153.6 -1.2 -15.7 -31 718 No stop 07 22 30 --- 18 05 26 45.5 154.8 -1.2 -15.1 179 731 07 19 01 07 23 10 J1905+0952 18 06 06 45.1 158.6 -1.0 -12.8 7 731 07 23 10 07 25 00 =1903+097 18 07 56 45.2 159.3 -1.0 -12.4 110 738 07 23 11 07 25 00 GRS1915 18 07 56 45.7 155.7 -1.1 -14.6 -31 738 No stop 07 28 30 --- 18 11 27 45.9 156.9 -1.1 -13.9 179 752 07 25 01 07 28 30 J1905+0952 18 11 27 45.3 160.5 -0.9 -11.7 -33 752 No stop 07 31 00 =1903+097 18 13 57 45.5 161.3 -0.9 -11.2 117 761 07 28 31 07 31 00 GRS1915 18 13 57 46.0 157.7 -1.0 -13.4 -31 761 No stop 07 34 30 --- 18 17 28 46.2 158.9 -1.0 -12.7 179 775 07 31 01 07 35 10 J1905+0952 18 18 08 45.7 162.8 -0.8 -10.4 7 775 07 35 10 07 37 00 =1903+097 18 19 58 45.7 163.4 -0.8 -10.0 110 782 07 35 11 07 37 00 J1913+0932 18 19 58 45.1 160.8 -0.9 -11.5 -27 782 No stop 07 39 30 --- 18 22 28 45.2 161.7 -0.9 -11.0 123 792 07 37 01 07 40 00 J1800+3848 18 22 58 75.2 196.9 0.4 12.9 -102 792 07 40 00 07 45 00 =1758+388 18 27 59 74.9 200.5 0.4 15.7 198 811 07 40 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 5 Mar 2021 Day 64 --- 07 45 40 J1905+0952 18 28 39 46.1 166.5 -0.6 -8.2 -84 811 07 45 40 07 47 40 =1903+097 18 30 40 46.1 167.2 -0.6 -7.8 36 819 07 45 41 07 47 40 GRS1915 18 30 40 46.8 163.6 -0.8 -10.0 -31 819 No stop 07 51 10 --- 18 34 10 47.0 164.8 -0.7 -9.2 179 832 07 47 41 07 51 10 J1905+0952 18 34 10 46.2 168.4 -0.5 -7.0 -33 832 No stop 07 53 40 =1903+097 18 36 41 46.3 169.3 -0.5 -6.5 117 842 07 51 11 07 53 40 GRS1915 18 36 41 47.1 165.7 -0.7 -8.7 -31 842 No stop 07 57 10 --- 18 40 11 47.2 166.9 -0.6 -7.9 179 855 07 53 41 07 57 50 J1905+0952 18 40 51 46.4 170.8 -0.4 -5.6 7 855 07 57 50 07 59 40 =1903+097 18 42 42 46.5 171.4 -0.4 -5.2 110 862 07 57 51 07 59 40 GRS1915 18 42 42 47.3 167.8 -0.6 -7.4 -31 862 No stop 08 03 10 --- 18 46 12 47.4 169.1 -0.5 -6.6 179 876 07 59 41 08 03 10 J1905+0952 18 46 12 46.5 172.7 -0.3 -4.5 -33 876 No stop 08 05 40 =1903+097 18 48 43 46.6 173.6 -0.3 -3.9 117 886 08 03 11 08 05 40 GRS1915 18 48 43 47.5 170.0 -0.5 -6.1 -31 886 No stop 08 09 10 --- 18 52 13 47.6 171.3 -0.4 -5.3 179 899 08 05 41 08 09 50 J1905+0952 18 52 53 46.7 175.1 -0.2 -3.0 7 899 08 09 50 08 11 40 =1903+097 18 54 44 46.7 175.7 -0.2 -2.6 110 906 08 09 51 08 11 40 GRS1915 18 54 44 47.6 172.2 -0.4 -4.8 -31 906 No stop 08 15 10 --- 18 58 14 47.7 173.5 -0.3 -4.0 179 920 08 11 41 08 15 10 J1905+0952 18 58 14 46.7 177.0 -0.1 -1.8 -32 920 No stop 08 17 40 =1903+097 19 00 45 46.7 177.9 -0.1 -1.3 118 929 08 15 11 08 17 40 GRS1915 19 00 45 47.7 174.4 -0.3 -3.4 -31 929 No stop 08 21 10 --- 19 04 15 47.8 175.7 -0.2 -2.7 179 943 08 17 41 08 21 50 J1905+0952 19 04 55 46.7 179.4 -0.0 -0.4 8 943 08 21 50 08 23 40 =1903+097 19 06 46 46.7 180.0 0.0 0.0 110 950 08 21 51 08 23 40 GRS1915 19 06 46 47.8 176.6 -0.2 -2.1 -31 950 No stop 08 27 10 --- 19 10 16 47.8 177.8 -0.1 -1.3 179 964 08 23 41 08 27 10 J1905+0952 19 10 16 46.7 181.3 0.1 0.8 -32 964 No stop 08 29 40 =1903+097 19 12 47 46.7 182.2 0.1 1.3 118 973 08 27 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 5 Mar 2021 Day 64 --- 08 29 40 GRS1915 19 12 47 47.8 178.8 -0.1 -0.8 -31 973 No stop 08 33 10 --- 19 16 17 47.8 180.0 0.0 0.0 179 987 08 29 41 08 33 50 J1905+0952 19 16 57 46.7 183.7 0.2 2.3 8 987 08 33 50 08 35 40 =1903+097 19 18 48 46.7 184.4 0.2 2.7 110 994 08 33 51 08 35 40 J1913+0932 19 18 48 46.4 181.6 0.1 1.0 -28 994 No stop 08 38 10 --- 19 21 18 46.4 182.5 0.1 1.5 122 1004 08 35 41 08 38 50 J1905+0952 19 21 58 46.6 185.5 0.3 3.3 11 1004 08 38 50 08 40 50 =1903+097 19 23 58 46.6 186.2 0.3 3.8 120 1011 08 38 51 08 40 50 GRS1915 19 23 58 47.8 182.9 0.1 1.7 -30 1011 No stop 08 44 20 --- 19 27 29 47.8 184.1 0.2 2.5 180 1025 08 40 51 08 44 20 J1905+0952 19 27 29 46.5 187.5 0.3 4.5 -32 1025 No stop 08 46 50 =1903+097 19 29 59 46.5 188.4 0.4 5.1 118 1034 08 44 21 08 46 50 GRS1915 19 29 59 47.7 185.0 0.2 3.1 -30 1034 No stop 08 50 20 --- 19 33 30 47.7 186.3 0.3 3.9 180 1048 08 46 51 08 51 00 J1905+0952 19 34 10 46.4 189.9 0.5 6.0 9 1048 08 51 00 08 52 50 =1903+097 19 36 00 46.3 190.5 0.5 6.4 110 1055 08 51 01 08 52 50 GRS1915 19 36 00 47.6 187.2 0.3 4.4 -30 1055 No stop 08 56 20 --- 19 39 31 47.6 188.5 0.4 5.2 180 1069 08 52 51 08 56 20 J1905+0952 19 39 31 46.2 191.7 0.5 7.1 -31 1069 No stop 08 58 50 =1903+097 19 42 01 46.2 192.6 0.6 7.6 119 1078 08 56 21 08 58 50 GRS1915 19 42 01 47.5 189.4 0.4 5.7 -30 1078 No stop 09 02 20 --- 19 45 32 47.4 190.7 0.5 6.5 180 1092 08 58 51 09 03 00 J1905+0952 19 46 12 46.0 194.1 0.7 8.5 9 1092 09 03 00 09 04 50 =1903+097 19 48 02 45.9 194.7 0.7 8.9 110 1099 09 03 01 09 04 50 GRS1915 19 48 02 47.3 191.6 0.5 7.0 -29 1099 No stop 09 08 20 --- 19 51 33 47.2 192.8 0.6 7.8 181 1112 09 04 51 09 08 20 J1905+0952 19 51 33 45.8 196.0 0.7 9.6 -31 1112 No stop 09 10 50 =1903+097 19 54 03 45.7 196.8 0.8 10.2 119 1122 09 08 21 09 10 50 GRS1915 19 54 03 47.1 193.7 0.6 8.3 -29 1122 No stop 09 14 20 --- 19 57 34 47.0 195.0 0.7 9.1 181 1136 09 10 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 5 Mar 2021 Day 64 --- 09 15 00 J1905+0952 19 58 14 45.5 198.3 0.9 11.0 10 1136 09 15 00 09 16 50 =1903+097 20 00 04 45.4 198.9 0.9 11.4 110 1143 09 15 01 09 16 50 GRS1915 20 00 04 46.9 195.9 0.7 9.6 -29 1143 No stop 09 20 20 --- 20 03 35 46.8 197.1 0.8 10.4 181 1156 09 16 51 09 20 20 J1905+0952 20 03 35 45.2 200.1 0.9 12.1 -30 1156 No stop 09 22 50 =1903+097 20 06 05 45.1 201.0 1.0 12.6 120 1166 09 20 21 09 22 50 GRS1915 20 06 05 46.6 198.0 0.8 10.9 -29 1166 No stop 09 26 20 --- 20 09 36 46.5 199.2 0.9 11.6 181 1179 09 22 51 09 27 00 J1905+0952 20 10 16 44.9 202.4 1.1 13.4 10 1179 09 27 00 09 28 50 =1903+097 20 12 06 44.8 203.0 1.1 13.8 110 1186 09 27 01 09 28 50 J1913+0932 20 12 06 44.9 200.3 1.0 12.2 -27 1186 No stop 09 31 20 --- 20 14 37 44.8 201.1 1.0 12.7 123 1196 09 28 51 09 32 00 J1905+0952 20 15 17 44.6 204.1 1.1 14.4 11 1196 09 32 00 09 34 00 =1903+097 20 17 17 44.5 204.8 1.2 14.8 120 1204 09 32 01 09 34 00 GRS1915 20 17 17 46.1 201.9 1.0 13.2 -28 1204 No stop 09 37 30 --- 20 20 48 45.9 203.1 1.1 13.9 182 1217 09 34 01 09 37 30 J1905+0952 20 20 48 44.2 205.9 1.2 15.4 -29 1217 No stop 09 40 00 =1903+097 20 23 18 44.1 206.8 1.3 15.9 121 1227 09 37 31 09 40 00 GRS1915 20 23 18 45.7 204.0 1.1 14.4 -28 1227 No stop 09 43 30 --- 20 26 49 45.5 205.2 1.2 15.0 182 1241 09 40 01 09 44 10 J1905+0952 20 27 29 43.8 208.1 1.3 16.7 11 1241 09 44 10 09 46 10 =1903+097 20 29 29 43.6 208.8 1.4 17.0 120 1248 09 44 11 09 46 10 GRS1915 20 29 29 45.3 206.1 1.2 15.6 -27 1248 No stop 09 49 40 --- 20 33 00 45.1 207.2 1.3 16.2 183 1262 09 46 11 09 49 40 J1905+0952 20 33 00 43.4 209.9 1.4 17.7 -29 1262 No stop 09 52 10 =1903+097 20 35 30 43.2 210.7 1.5 18.1 121 1271 09 49 41 09 52 10 GRS1915 20 35 30 44.9 208.1 1.3 16.7 -27 1271 No stop 09 55 40 --- 20 39 01 44.7 209.2 1.4 17.4 183 1285 09 52 11 09 56 20 J1905+0952 20 39 41 42.9 212.1 1.6 18.8 12 1285 09 56 20 09 58 20 =1903+097 20 41 41 42.7 212.7 1.6 19.2 120 1293 09 56 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 5 Mar 2021 Day 64 --- 09 58 20 GRS1915 20 41 41 44.5 210.1 1.4 17.8 -27 1293 No stop 10 01 50 --- 20 45 12 44.2 211.2 1.5 18.5 183 1306 09 58 21 10 01 50 J1905+0952 20 45 12 42.4 213.8 1.6 19.8 -28 1306 No stop 10 04 20 =1903+097 20 47 42 42.2 214.6 1.7 20.2 122 1316 10 01 51 10 04 20 GRS1915 20 47 42 44.0 212.1 1.5 18.9 -26 1316 No stop 10 07 50 --- 20 51 13 43.7 213.2 1.6 19.5 184 1329 10 04 21 10 08 30 J1905+0952 20 51 53 41.8 215.9 1.8 20.9 12 1329 10 08 30 10 10 30 =1903+097 20 53 53 41.7 216.5 1.8 21.2 120 1337 10 08 31 10 10 30 GRS1915 20 53 53 43.5 214.0 1.6 20.0 -26 1337 No stop 10 14 00 --- 20 57 24 43.2 215.2 1.7 20.6 184 1351 10 10 31 10 14 00 J1905+0952 20 57 24 41.3 217.6 1.8 21.8 -27 1351 No stop 10 16 30 =1903+097 20 59 54 41.1 218.3 1.9 22.2 123 1360 10 14 01 10 16 30 GRS1915 20 59 54 43.0 215.9 1.7 21.0 -26 1360 No stop 10 20 00 --- 21 03 25 42.7 217.0 1.8 21.6 184 1374 10 16 31 10 20 40 J1905+0952 21 04 05 40.7 219.6 2.0 22.8 13 1374 10 20 40 10 22 40 =1903+097 21 06 05 40.5 220.2 2.0 23.1 120 1382 10 20 41 10 22 40 J1913+0932 21 06 05 41.0 217.7 1.9 21.8 -26 1382 No stop 10 25 10 --- 21 08 36 40.7 218.5 1.9 22.2 124 1391 10 22 41 10 25 50 J1905+0952 21 09 16 40.2 221.1 2.0 23.6 12 1391 10 25 50 10 27 50 =1903+097 21 11 16 40.0 221.7 2.1 23.9 120 1399 10 25 51 10 27 50 GRS1915 21 11 16 41.9 219.4 1.9 22.8 -25 1399 No stop 10 31 20 --- 21 14 47 41.6 220.5 2.0 23.4 185 1413 10 27 51 10 31 20 J1905+0952 21 14 47 39.7 222.8 2.1 24.4 -26 1413 No stop 10 33 50 =1903+097 21 17 17 39.4 223.5 2.2 24.8 124 1422 10 31 21 10 33 50 GRS1915 21 17 17 41.4 221.3 2.0 23.8 -25 1422 No stop 10 37 20 --- 21 20 48 41.0 222.3 2.1 24.3 185 1436 10 33 51 10 38 00 J1905+0952 21 21 28 39.0 224.7 2.2 25.3 14 1436 10 38 00 10 40 00 =1903+097 21 23 28 38.8 225.3 2.3 25.6 120 1443 10 38 01 10 40 00 GRS1915 21 23 28 40.7 223.1 2.1 24.7 -25 1443 No stop 10 43 30 --- 21 26 59 40.4 224.1 2.2 25.2 185 1457 10 40 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 5 Mar 2021 Day 64 --- 10 43 30 J1905+0952 21 26 59 38.4 226.2 2.3 26.1 -26 1457 No stop 10 46 00 =1903+097 21 29 29 38.1 227.0 2.4 26.4 124 1467 10 43 31 10 46 00 GRS1915 21 29 29 40.1 224.9 2.2 25.5 -24 1467 No stop 10 49 30 --- 21 33 00 39.7 225.9 2.3 26.0 186 1480 10 46 01 10 50 10 J1905+0952 21 33 40 37.7 228.1 2.5 26.9 15 1480 10 50 10 10 52 10 =1903+097 21 35 40 37.4 228.7 2.5 27.2 120 1488 10 50 11 10 52 10 GRS1915 21 35 40 39.4 226.6 2.3 26.4 -24 1488 No stop 10 55 40 --- 21 39 11 39.1 227.6 2.4 26.8 186 1501 10 52 11 10 55 40 J1905+0952 21 39 11 37.0 229.6 2.5 27.6 -25 1501 No stop 10 58 10 =1903+097 21 41 41 36.7 230.3 2.6 27.9 125 1511 10 55 41 10 58 10 GRS1915 21 41 41 38.8 228.3 2.4 27.1 -24 1511 No stop 11 01 40 --- 21 45 12 38.4 229.3 2.5 27.6 186 1525 10 58 11 11 02 20 J1905+0952 21 45 52 36.3 231.4 2.7 28.4 15 1525 11 02 20 11 04 20 =1903+097 21 47 52 36.0 232.0 2.7 28.7 120 1532 11 02 21 11 04 20 J1913+0932 21 47 52 36.6 229.7 2.6 27.6 -25 1532 No stop 11 06 50 --- 21 50 22 36.3 230.4 2.6 27.9 125 1542 11 04 21 11 07 30 J1905+0952 21 51 03 35.6 232.8 2.7 29.0 14 1542 11 07 30 11 09 30 =1903+097 21 53 03 35.4 233.4 2.8 29.2 120 1550 11 07 31 11 09 30 GRS1915 21 53 03 37.5 231.5 2.6 28.5 -25 1550 No stop 11 13 00 --- 21 56 33 37.1 232.4 2.7 28.9 185 1563 11 09 31 11 13 00 J1905+0952 21 56 33 35.0 234.3 2.8 29.6 -25 1563 No stop 11 15 30 =1903+097 21 59 04 34.7 234.9 2.9 29.9 125 1573 11 13 01 11 15 30 GRS1915 21 59 04 36.8 233.1 2.7 29.2 -25 1573 No stop 11 19 00 --- 22 02 34 36.3 234.0 2.8 29.6 185 1586 11 15 31 11 19 40 J1905+0952 22 03 15 34.2 236.0 2.9 30.3 15 1586 11 19 40 11 21 40 =1903+097 22 05 15 33.9 236.5 3.0 30.5 120 1594 11 19 41 11 21 40 GRS1915 22 05 15 36.0 234.7 2.8 29.9 -25 1594 No stop 11 25 10 --- 22 08 45 35.6 235.6 2.9 30.3 185 1608 11 21 41 11 25 10 J1905+0952 22 08 45 33.5 237.4 3.0 30.9 -25 1608 No stop 11 27 40 =1903+097 22 11 16 33.1 238.1 3.1 31.1 125 1617 11 25 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 5 Mar 2021 Day 64 --- 11 27 40 GRS1915 22 11 16 35.3 236.3 2.9 30.5 -25 1617 No stop 11 31 10 --- 22 14 46 34.8 237.2 3.0 30.9 185 1631 11 27 41 11 31 50 J1905+0952 22 15 27 32.6 239.1 3.1 31.5 15 1631 11 31 50 11 33 50 =1903+097 22 17 27 32.4 239.6 3.2 31.7 120 1639 11 31 51 11 33 50 GRS1915 22 17 27 34.5 237.9 3.0 31.2 -25 1639 No stop 11 37 20 --- 22 20 57 34.0 238.8 3.1 31.5 185 1652 11 33 51 11 37 20 J1905+0952 22 20 57 31.9 240.5 3.2 32.0 -25 1652 No stop 11 39 50 =1903+097 22 23 28 31.6 241.1 3.3 32.2 125 1662 11 37 21 11 39 50 GRS1915 22 23 28 33.7 239.4 3.1 31.7 -25 1662 No stop 11 43 20 --- 22 26 58 33.3 240.3 3.2 32.0 185 1675 11 39 51 11 44 00 J1905+0952 22 27 39 31.0 242.1 3.3 32.5 14 1675 11 44 00 11 46 00 =1903+097 22 29 39 30.8 242.6 3.4 32.7 120 1683 11 44 01 11 46 00 J1913+0932 22 29 39 31.5 240.5 3.3 32.0 -24 1683 No stop 11 48 30 --- 22 32 09 31.2 241.1 3.3 32.2 126 1693 11 46 01 11 49 10 J1905+0952 22 32 49 30.3 243.3 3.4 33.0 15 1693 11 49 10 11 52 40 =1903+097 22 36 20 29.9 244.2 3.5 33.2 210 1706 11 49 11 11 54 00 J2253+1608 22 37 40 52.9 173.1 -0.3 -4.3 -153 1706 11 54 00 12 00 00 =3C454.3 22 43 41 53.0 175.5 -0.2 -2.8 207 1729 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: 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= 4926.49 4926.49 BBC fr= 737.51 737.51 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 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