COVER INFORMATION Station: DARNHALL (Code Da ) Experiment: Probing the radio jets in GRS1915+105 in a new puzzling accretion state Exp. Code: EM144C Schedule Version: 3.40 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 ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- Next scan frequencies: 4926.49 4926.49 Next BBC frequencies: 737.51 737.51 Next scan bandwidths: 64.00 64.00 21 30 00 J1800+3848 15 01 20 56.3 96.8 -3.0 -49.8 0 0 21 30 00 21 35 00 =1758+388 15 06 21 57.1 97.9 -2.9 -49.7 300 19 21 30 01 21 37 00 J1905+0952 15 08 21 25.9 109.2 -4.0 -35.1 4 19 21 37 00 21 39 30 =1903+097 15 10 52 26.2 109.8 -3.9 -34.9 150 29 21 37 01 21 39 30 GRS1915 15 10 52 25.8 107.0 -4.1 -35.8 -28 29 No stop 21 43 00 --- 15 14 22 26.3 107.7 -4.0 -35.6 182 43 21 39 31 21 43 40 J1905+0952 15 15 02 26.8 110.7 -3.9 -34.7 11 43 21 43 40 21 45 30 =1903+097 15 16 53 27.1 111.1 -3.8 -34.6 110 50 21 43 41 21 45 30 GRS1915 15 16 53 26.6 108.3 -4.0 -35.4 -28 50 No stop 21 49 00 --- 15 20 23 27.1 109.1 -3.9 -35.3 182 63 21 45 31 21 49 00 J1905+0952 15 20 23 27.6 111.9 -3.8 -34.4 -29 63 No stop 21 51 30 =1903+097 15 22 54 27.9 112.5 -3.7 -34.2 121 73 21 49 01 21 51 30 GRS1915 15 22 54 27.5 109.6 -3.9 -35.1 -28 73 No stop 21 55 00 --- 15 26 24 28.0 110.4 -3.8 -34.9 182 86 21 51 31 21 55 40 J1905+0952 15 27 04 28.5 113.5 -3.7 -33.9 11 86 21 55 40 21 57 30 =1903+097 15 28 55 28.8 113.9 -3.6 -33.8 110 93 21 55 41 21 57 30 GRS1915 15 28 55 28.3 111.0 -3.8 -34.8 -28 93 No stop 22 01 00 --- 15 32 25 28.8 111.8 -3.7 -34.5 182 107 21 57 31 22 01 00 J1905+0952 15 32 25 29.2 114.7 -3.6 -33.6 -29 107 No stop 22 03 30 =1903+097 15 34 56 29.6 115.3 -3.5 -33.4 121 117 22 01 01 22 03 30 GRS1915 15 34 56 29.2 112.4 -3.7 -34.4 -29 117 No stop 22 07 00 --- 15 38 26 29.7 113.2 -3.6 -34.1 181 130 22 03 31 22 07 40 J1905+0952 15 39 06 30.1 116.3 -3.5 -33.1 10 130 22 07 40 22 09 30 =1903+097 15 40 57 30.4 116.8 -3.4 -32.9 110 137 22 07 41 22 09 30 GRS1915 15 40 57 30.0 113.8 -3.6 -34.0 -29 137 No stop 22 13 00 --- 15 44 27 30.5 114.6 -3.5 -33.7 181 151 22 09 31 22 13 00 J1905+0952 15 44 27 30.9 117.6 -3.4 -32.6 -30 151 No stop 22 15 30 =1903+097 15 46 58 31.2 118.2 -3.3 -32.4 120 160 22 13 01 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 ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 22 15 30 GRS1915 15 46 58 30.8 115.2 -3.5 -33.5 -29 160 No stop 22 19 00 --- 15 50 28 31.3 116.1 -3.4 -33.3 181 174 22 15 31 22 19 40 J1905+0952 15 51 08 31.7 119.2 -3.3 -32.1 10 174 22 19 40 22 21 30 =1903+097 15 52 59 32.0 119.7 -3.2 -31.9 110 181 22 19 41 22 21 30 GRS1915 15 52 59 31.6 116.7 -3.4 -33.1 -29 181 No stop 22 25 00 --- 15 56 29 32.1 117.5 -3.3 -32.8 181 195 22 21 31 22 25 00 J1905+0952 15 56 29 32.4 120.5 -3.2 -31.6 -30 195 No stop 22 27 30 =1903+097 15 58 59 32.8 121.2 -3.1 -31.4 120 204 22 25 01 22 27 30 GRS1915 15 58 59 32.4 118.1 -3.3 -32.6 -29 204 No stop 22 31 00 --- 16 02 30 32.9 119.0 -3.2 -32.3 181 218 22 27 31 22 31 40 J1905+0952 16 03 10 33.3 122.2 -3.1 -31.0 10 218 22 31 40 22 33 30 =1903+097 16 05 00 33.5 122.7 -3.0 -30.8 110 225 22 31 41 22 33 30 J1913+0932 16 05 00 32.3 120.9 -3.2 -31.4 -22 225 No stop 22 37 00 --- 16 08 31 32.7 121.8 -3.1 -31.1 188 238 22 33 31 22 38 00 J1905+0952 16 09 31 34.1 123.8 -3.0 -30.4 36 238 22 38 00 22 40 30 =1903+097 16 12 02 34.4 124.5 -2.9 -30.1 150 248 22 38 01 22 40 30 GRS1915 16 12 02 34.1 121.4 -3.1 -31.4 -29 248 No stop 22 44 00 --- 16 15 32 34.6 122.3 -3.0 -31.1 181 262 22 40 31 22 44 00 J1905+0952 16 15 32 34.8 125.4 -2.9 -29.7 -30 262 No stop 22 46 30 =1903+097 16 18 03 35.1 126.0 -2.8 -29.5 120 271 22 44 01 22 46 30 GRS1915 16 18 03 34.9 122.9 -3.0 -30.8 -29 271 No stop 22 50 00 --- 16 21 33 35.3 123.8 -2.9 -30.5 181 285 22 46 31 22 50 40 J1905+0952 16 22 13 35.6 127.1 -2.7 -29.0 9 285 22 50 40 22 52 30 =1903+097 16 24 04 35.9 127.6 -2.7 -28.8 110 292 22 50 41 22 52 30 GRS1915 16 24 04 35.6 124.5 -2.9 -30.2 -30 292 No stop 22 56 00 --- 16 27 34 36.1 125.4 -2.8 -29.9 180 305 22 52 31 22 56 00 J1905+0952 16 27 34 36.3 128.6 -2.7 -28.4 -31 305 No stop 22 58 30 =1903+097 16 30 05 36.6 129.3 -2.6 -28.1 119 315 22 56 01 22 58 30 GRS1915 16 30 05 36.4 126.1 -2.8 -29.6 -30 315 No stop 23 02 00 --- 16 33 35 36.8 127.0 -2.7 -29.2 180 328 22 58 31 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 ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 23 02 40 J1905+0952 16 34 15 37.0 130.4 -2.5 -27.6 9 328 23 02 40 23 04 30 =1903+097 16 36 06 37.3 130.9 -2.5 -27.4 110 336 23 02 41 23 04 30 GRS1915 16 36 06 37.1 127.7 -2.7 -28.9 -30 336 No stop 23 08 00 --- 16 39 36 37.5 128.6 -2.6 -28.5 180 349 23 04 31 23 08 00 J1905+0952 16 39 36 37.6 131.9 -2.5 -27.0 -31 349 No stop 23 10 30 =1903+097 16 42 07 37.9 132.6 -2.4 -26.6 119 359 23 08 01 23 10 30 GRS1915 16 42 07 37.8 129.3 -2.6 -28.2 -30 359 No stop 23 14 00 --- 16 45 37 38.2 130.3 -2.5 -27.8 180 372 23 10 31 23 14 40 J1905+0952 16 46 17 38.4 133.7 -2.3 -26.1 9 372 23 14 40 23 16 30 =1903+097 16 48 08 38.6 134.2 -2.3 -25.8 110 379 23 14 41 23 16 30 GRS1915 16 48 08 38.5 131.0 -2.5 -27.5 -30 379 No stop 23 20 00 --- 16 51 38 38.9 131.9 -2.4 -27.0 180 393 23 16 31 23 20 00 J1905+0952 16 51 38 39.0 135.2 -2.3 -25.4 -31 393 No stop 23 22 30 =1903+097 16 54 09 39.2 136.0 -2.2 -25.0 119 403 23 20 01 23 22 30 GRS1915 16 54 09 39.2 132.6 -2.4 -26.7 -30 403 No stop 23 26 00 --- 16 57 39 39.6 133.6 -2.3 -26.2 180 416 23 22 31 23 26 40 J1905+0952 16 58 19 39.6 137.2 -2.1 -24.4 8 416 23 26 40 23 28 30 =1903+097 17 00 10 39.8 137.7 -2.1 -24.2 110 423 23 26 41 23 28 30 GRS1915 17 00 10 39.8 134.4 -2.3 -25.9 -30 423 No stop 23 32 00 --- 17 03 40 40.2 135.4 -2.2 -25.4 180 437 23 28 31 23 32 00 J1905+0952 17 03 40 40.2 138.7 -2.1 -23.7 -32 437 No stop 23 34 30 =1903+097 17 06 11 40.4 139.5 -2.0 -23.3 118 446 23 32 01 23 34 30 J1913+0932 17 06 11 39.4 137.4 -2.1 -24.3 -24 446 No stop 23 38 00 --- 17 09 41 39.7 138.4 -2.1 -23.8 186 460 23 34 31 23 39 00 J1905+0952 17 10 41 40.9 140.8 -1.9 -22.6 34 460 23 39 00 23 41 30 =1903+097 17 13 12 41.1 141.6 -1.9 -22.2 150 470 23 39 01 23 41 30 GRS1915 17 13 12 41.2 138.2 -2.1 -24.0 -31 470 No stop 23 45 00 --- 17 16 42 41.5 139.2 -2.0 -23.5 179 483 23 41 31 23 45 00 J1905+0952 17 16 42 41.4 142.7 -1.8 -21.7 -32 483 No stop 23 47 30 =1903+097 17 19 13 41.6 143.4 -1.8 -21.3 118 493 23 45 01 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 ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 23 47 30 GRS1915 17 19 13 41.8 140.0 -1.9 -23.1 -31 493 No stop 23 51 00 --- 17 22 43 42.1 141.0 -1.9 -22.6 179 506 23 47 31 23 51 40 J1905+0952 17 23 23 42.0 144.7 -1.7 -20.6 8 506 23 51 40 23 53 30 =1903+097 17 25 14 42.2 145.3 -1.7 -20.3 110 513 23 51 41 23 53 30 GRS1915 17 25 14 42.3 141.8 -1.8 -22.2 -31 513 No stop 23 57 00 --- 17 28 44 42.7 142.9 -1.8 -21.6 179 527 23 53 31 23 57 00 J1905+0952 17 28 44 42.5 146.4 -1.6 -19.7 -32 527 No stop 23 59 30 =1903+097 17 31 15 42.7 147.2 -1.6 -19.3 118 537 23 57 01 --- Start: Wed 16 Jun 2021 Day 167 -- Stop: Thu 17 Jun 2021 Day 168 --- 23 59 30 GRS1915 17 31 15 42.9 143.7 -1.7 -21.2 -31 537 No stop 00 03 00 --- 17 34 45 43.2 144.8 -1.7 -20.6 179 550 23 59 31 00 03 40 J1905+0952 17 35 25 43.0 148.5 -1.5 -18.5 8 550 00 03 40 00 05 30 =1903+097 17 37 16 43.1 149.1 -1.5 -18.2 110 557 00 03 41 00 05 30 GRS1915 17 37 16 43.4 145.6 -1.6 -20.2 -31 557 No stop 00 09 00 --- 17 40 46 43.7 146.7 -1.6 -19.6 179 571 00 05 31 00 09 00 J1905+0952 17 40 46 43.4 150.2 -1.4 -17.6 -32 571 No stop 00 11 30 =1903+097 17 43 17 43.6 151.0 -1.4 -17.1 118 580 00 09 01 00 11 30 GRS1915 17 43 17 43.9 147.5 -1.5 -19.2 -31 580 No stop 00 15 00 --- 17 46 47 44.2 148.6 -1.5 -18.5 179 594 00 11 31 00 15 40 J1905+0952 17 47 27 43.9 152.4 -1.3 -16.4 7 594 00 15 40 00 17 30 =1903+097 17 49 18 44.0 153.0 -1.3 -16.0 110 601 00 15 41 00 17 30 GRS1915 17 49 18 44.4 149.4 -1.4 -18.1 -31 601 No stop 00 21 00 --- 17 52 48 44.6 150.6 -1.4 -17.5 179 614 00 17 31 00 21 00 J1905+0952 17 52 48 44.3 154.2 -1.2 -15.4 -33 614 No stop 00 23 30 =1903+097 17 55 19 44.4 155.0 -1.2 -14.9 117 624 00 21 01 00 23 30 GRS1915 17 55 19 44.8 151.4 -1.3 -17.0 -31 624 No stop 00 27 00 --- 17 58 49 45.1 152.6 -1.3 -16.3 179 638 00 23 31 00 27 40 J1905+0952 17 59 29 44.7 156.4 -1.1 -14.1 7 638 00 27 40 00 29 30 =1903+097 18 01 20 44.8 157.0 -1.1 -13.8 110 645 00 27 41 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 00 29 30 GRS1915 18 01 20 45.2 153.4 -1.2 -15.9 -31 645 No stop 00 33 00 --- 18 04 50 45.5 154.6 -1.2 -15.2 179 658 00 29 31 00 33 00 J1905+0952 18 04 50 45.0 158.2 -1.0 -13.1 -33 658 No stop 00 35 30 =1903+097 18 07 21 45.1 159.1 -1.0 -12.6 117 668 00 33 01 00 35 30 J1913+0932 18 07 21 44.4 156.5 -1.1 -14.0 -26 668 No stop 00 39 00 --- 18 10 51 44.6 157.7 -1.1 -13.3 184 681 00 35 31 00 40 00 J1905+0952 18 11 51 45.4 160.6 -0.9 -11.7 32 681 00 40 00 00 42 30 =1903+097 18 14 22 45.5 161.5 -0.9 -11.2 150 691 00 40 01 00 42 30 GRS1915 18 14 22 46.0 157.9 -1.0 -13.3 -31 691 No stop 00 46 00 --- 18 17 52 46.2 159.1 -1.0 -12.6 179 705 00 42 31 00 46 00 J1905+0952 18 17 52 45.6 162.7 -0.8 -10.4 -33 705 No stop 00 48 30 =1903+097 18 20 23 45.7 163.5 -0.8 -9.9 117 714 00 46 01 00 48 30 GRS1915 18 20 23 46.4 159.9 -0.9 -12.1 -31 714 No stop 00 52 00 --- 18 23 53 46.5 161.2 -0.9 -11.4 179 728 00 48 31 00 52 40 J1905+0952 18 24 33 45.9 165.0 -0.7 -9.1 7 728 00 52 40 00 54 30 =1903+097 18 26 24 46.0 165.6 -0.7 -8.7 110 735 00 52 41 00 54 30 GRS1915 18 26 24 46.7 162.0 -0.8 -10.9 -31 735 No stop 00 58 00 --- 18 29 54 46.8 163.3 -0.8 -10.1 179 748 00 54 31 00 58 00 J1905+0952 18 29 54 46.1 166.9 -0.6 -7.9 -33 748 No stop 01 00 30 =1903+097 18 32 25 46.2 167.8 -0.6 -7.4 117 758 00 58 01 01 00 30 GRS1915 18 32 25 46.9 164.2 -0.7 -9.6 -31 758 No stop 01 04 00 --- 18 35 55 47.1 165.4 -0.7 -8.9 179 772 01 00 31 01 04 40 J1905+0952 18 36 35 46.3 169.2 -0.5 -6.5 7 772 01 04 40 01 06 30 =1903+097 18 38 26 46.4 169.9 -0.5 -6.1 110 779 01 04 41 01 06 30 GRS1915 18 38 26 47.1 166.3 -0.6 -8.3 -31 779 No stop 01 10 00 --- 18 41 56 47.3 167.6 -0.6 -7.6 179 792 01 06 31 01 10 00 J1905+0952 18 41 56 46.5 171.1 -0.4 -5.4 -33 792 No stop 01 12 30 =1903+097 18 44 27 46.5 172.0 -0.4 -4.8 117 802 01 10 01 01 12 30 GRS1915 18 44 27 47.3 168.5 -0.5 -7.0 -31 802 No stop 01 16 00 --- 18 47 57 47.4 169.7 -0.5 -6.3 179 815 01 12 31 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 01 16 40 J1905+0952 18 48 37 46.6 173.5 -0.3 -3.9 7 815 01 16 40 01 18 30 =1903+097 18 50 28 46.6 174.2 -0.3 -3.5 110 823 01 16 41 01 18 30 GRS1915 18 50 28 47.5 170.6 -0.4 -5.7 -31 823 No stop 01 22 00 --- 18 53 58 47.6 171.9 -0.4 -4.9 179 836 01 18 31 01 22 00 J1905+0952 18 53 58 46.7 175.4 -0.2 -2.8 -32 836 No stop 01 24 30 =1903+097 18 56 29 46.7 176.3 -0.2 -2.2 118 846 01 22 01 01 24 30 GRS1915 18 56 29 47.6 172.8 -0.3 -4.4 -31 846 No stop 01 28 00 --- 18 59 59 47.7 174.1 -0.3 -3.6 179 859 01 24 31 01 28 40 J1905+0952 19 00 39 46.7 177.8 -0.1 -1.3 8 859 01 28 40 01 30 30 =1903+097 19 02 30 46.7 178.5 -0.1 -0.9 110 866 01 28 41 01 30 30 GRS1915 19 02 30 47.7 175.0 -0.2 -3.1 -31 866 No stop 01 34 00 --- 19 06 00 47.8 176.3 -0.2 -2.3 179 880 01 30 31 01 34 40 J1905+0952 19 06 40 46.7 180.0 -0.0 -0.0 8 880 01 34 40 01 36 30 =1903+097 19 08 31 46.7 180.7 0.0 0.4 110 887 01 34 41 01 36 30 J1913+0932 19 08 31 46.4 177.9 -0.1 -1.3 -28 887 No stop 01 39 00 --- 19 11 01 46.4 178.8 -0.1 -0.7 122 897 01 36 31 01 39 00 J1905+0952 19 11 01 46.7 181.6 0.1 0.9 -29 897 No stop 01 41 30 =1903+097 19 13 31 46.7 182.5 0.1 1.5 121 906 01 39 01 01 42 00 J1800+3848 19 14 01 71.0 228.4 1.2 35.1 -134 906 01 42 00 01 47 00 =1758+388 19 19 02 70.4 230.8 1.3 36.6 166 926 01 42 01 01 49 00 J1905+0952 19 21 03 46.6 185.2 0.2 3.1 -39 926 01 49 00 01 51 30 =1903+097 19 23 33 46.6 186.1 0.3 3.7 111 935 01 49 01 01 51 30 GRS1915 19 23 33 47.8 182.7 0.1 1.6 -30 935 No stop 01 55 00 --- 19 27 04 47.8 184.0 0.2 2.4 180 949 01 51 31 01 55 00 J1905+0952 19 27 04 46.6 187.3 0.3 4.4 -32 949 No stop 01 57 30 =1903+097 19 29 34 46.5 188.2 0.4 5.0 118 958 01 55 01 01 57 30 GRS1915 19 29 34 47.7 184.9 0.2 3.0 -30 958 No stop 02 01 00 --- 19 33 05 47.7 186.2 0.3 3.8 180 972 01 57 31 02 01 40 J1905+0952 19 33 45 46.4 189.7 0.5 5.9 9 972 02 01 40 02 03 30 =1903+097 19 35 35 46.4 190.3 0.5 6.3 110 979 02 01 41 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 02 03 30 GRS1915 19 35 35 47.6 187.1 0.3 4.3 -30 979 No stop 02 07 00 --- 19 39 06 47.6 188.3 0.4 5.1 180 993 02 03 31 02 07 00 J1905+0952 19 39 06 46.3 191.6 0.5 7.0 -31 993 No stop 02 09 30 =1903+097 19 41 36 46.2 192.5 0.6 7.6 119 1002 02 07 01 02 09 30 GRS1915 19 41 36 47.5 189.2 0.4 5.6 -30 1002 No stop 02 13 00 --- 19 45 07 47.4 190.5 0.5 6.4 180 1016 02 09 31 02 13 40 J1905+0952 19 45 47 46.0 193.9 0.7 8.4 9 1016 02 13 40 02 15 30 =1903+097 19 47 37 46.0 194.6 0.7 8.8 110 1023 02 13 41 02 15 30 GRS1915 19 47 37 47.4 191.4 0.5 6.9 -29 1023 No stop 02 19 00 --- 19 51 08 47.2 192.7 0.6 7.7 181 1036 02 15 31 02 19 00 J1905+0952 19 51 08 45.8 195.8 0.7 9.5 -31 1036 No stop 02 21 30 =1903+097 19 53 38 45.7 196.7 0.8 10.1 119 1046 02 19 01 02 21 30 GRS1915 19 53 38 47.2 193.6 0.6 8.2 -29 1046 No stop 02 25 00 --- 19 57 09 47.0 194.8 0.7 9.0 181 1060 02 21 31 02 25 40 J1905+0952 19 57 49 45.5 198.1 0.9 10.9 10 1060 02 25 40 02 27 30 =1903+097 19 59 39 45.4 198.8 0.9 11.3 110 1067 02 25 41 02 27 30 GRS1915 19 59 39 46.9 195.7 0.7 9.5 -29 1067 No stop 02 31 00 --- 20 03 09 46.8 197.0 0.8 10.3 181 1080 02 27 31 02 31 00 J1905+0952 20 03 09 45.3 200.0 0.9 12.0 -30 1080 No stop 02 33 30 =1903+097 20 05 40 45.1 200.8 1.0 12.5 120 1090 02 31 01 02 33 30 GRS1915 20 05 40 46.7 197.8 0.8 10.8 -29 1090 No stop 02 37 00 --- 20 09 10 46.5 199.1 0.9 11.5 181 1103 02 33 31 02 37 40 J1905+0952 20 09 51 44.9 202.2 1.1 13.3 10 1103 02 37 40 02 39 30 =1903+097 20 11 41 44.8 202.9 1.1 13.7 110 1110 02 37 41 02 39 30 GRS1915 20 11 41 46.4 199.9 0.9 12.0 -28 1110 No stop 02 43 00 --- 20 15 11 46.2 201.2 1.0 12.7 182 1124 02 39 31 02 43 00 J1905+0952 20 15 11 44.6 204.0 1.1 14.4 -30 1124 No stop 02 45 30 =1903+097 20 17 42 44.4 204.9 1.2 14.8 120 1134 02 43 01 02 45 30 J1913+0932 20 17 42 44.6 202.2 1.1 13.3 -27 1134 No stop 02 49 00 --- 20 21 12 44.4 203.4 1.1 13.9 183 1147 02 45 31 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 02 50 00 J1905+0952 20 22 13 44.1 206.4 1.3 15.7 31 1147 02 50 00 02 52 30 =1903+097 20 24 43 44.0 207.2 1.3 16.2 150 1157 02 50 01 02 52 30 GRS1915 20 24 43 45.6 204.4 1.1 14.6 -28 1157 No stop 02 56 00 --- 20 28 14 45.4 205.6 1.2 15.3 182 1170 02 52 31 02 56 00 J1905+0952 20 28 14 43.7 208.4 1.4 16.8 -29 1170 No stop 02 58 30 =1903+097 20 30 44 43.6 209.2 1.4 17.3 121 1180 02 56 01 02 58 30 GRS1915 20 30 44 45.3 206.5 1.2 15.8 -27 1180 No stop 03 02 00 --- 20 34 15 45.0 207.6 1.3 16.5 183 1194 02 58 31 03 02 40 J1905+0952 20 34 55 43.2 210.5 1.5 18.0 11 1194 03 02 40 03 04 30 =1903+097 20 36 45 43.1 211.1 1.5 18.3 110 1201 03 02 41 03 04 30 GRS1915 20 36 45 44.8 208.5 1.3 16.9 -27 1201 No stop 03 08 00 --- 20 40 16 44.6 209.6 1.4 17.6 183 1214 03 04 31 03 08 00 J1905+0952 20 40 16 42.8 212.2 1.6 18.9 -28 1214 No stop 03 10 30 =1903+097 20 42 46 42.6 213.0 1.6 19.4 122 1224 03 08 01 03 10 30 GRS1915 20 42 46 44.4 210.4 1.4 18.0 -27 1224 No stop 03 14 00 --- 20 46 17 44.1 211.6 1.5 18.7 183 1237 03 10 31 03 14 40 J1905+0952 20 46 57 42.3 214.3 1.7 20.1 12 1237 03 14 40 03 16 30 =1903+097 20 48 47 42.1 214.9 1.7 20.4 110 1244 03 14 41 03 16 30 GRS1915 20 48 47 43.9 212.4 1.5 19.1 -26 1244 No stop 03 20 00 --- 20 52 18 43.6 213.5 1.6 19.7 184 1258 03 16 31 03 20 00 J1905+0952 20 52 18 41.8 216.0 1.8 21.0 -28 1258 No stop 03 22 30 =1903+097 20 54 48 41.6 216.8 1.8 21.4 122 1268 03 20 01 03 22 30 GRS1915 20 54 48 43.4 214.3 1.6 20.1 -26 1268 No stop 03 26 00 --- 20 58 19 43.1 215.4 1.7 20.7 184 1281 03 22 31 03 26 40 J1905+0952 20 58 59 41.2 218.0 1.9 22.0 13 1281 03 26 40 03 28 30 =1903+097 21 00 49 41.0 218.6 1.9 22.3 110 1288 03 26 41 03 28 30 GRS1915 21 00 49 42.9 216.2 1.7 21.2 -26 1288 No stop 03 32 00 --- 21 04 20 42.6 217.3 1.8 21.7 184 1302 03 28 31 03 32 00 J1905+0952 21 04 20 40.7 219.7 2.0 22.9 -27 1302 No stop 03 34 30 =1903+097 21 06 50 40.5 220.4 2.0 23.2 123 1311 03 32 01 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 03 34 30 GRS1915 21 06 50 42.4 218.1 1.8 22.1 -25 1311 No stop 03 38 00 --- 21 10 21 42.0 219.2 1.9 22.7 185 1325 03 34 31 03 38 40 J1905+0952 21 11 01 40.1 221.6 2.1 23.9 13 1325 03 38 40 03 40 30 =1903+097 21 12 51 39.9 222.2 2.1 24.1 110 1332 03 38 41 03 40 30 GRS1915 21 12 51 41.8 219.9 1.9 23.1 -25 1332 No stop 03 44 00 --- 21 16 21 41.5 221.0 2.0 23.6 185 1346 03 40 31 03 44 00 J1905+0952 21 16 21 39.5 223.2 2.2 24.6 -26 1346 No stop 03 46 30 =1903+097 21 18 52 39.3 223.9 2.2 25.0 124 1355 03 44 01 03 46 30 J1913+0932 21 18 52 39.8 221.5 2.1 23.8 -26 1355 No stop 03 50 00 --- 21 22 22 39.4 222.5 2.1 24.3 184 1369 03 46 31 03 51 00 J1905+0952 21 23 23 38.8 225.2 2.3 25.6 33 1369 03 51 00 03 53 30 =1903+097 21 25 53 38.5 225.9 2.3 25.9 150 1378 03 51 01 03 53 30 GRS1915 21 25 53 40.5 223.8 2.2 25.0 -24 1378 No stop 03 57 00 --- 21 29 24 40.1 224.8 2.2 25.5 186 1392 03 53 31 03 57 00 J1905+0952 21 29 24 38.1 226.9 2.4 26.4 -26 1392 No stop 03 59 30 =1903+097 21 31 54 37.9 227.6 2.4 26.7 124 1402 03 57 01 03 59 30 GRS1915 21 31 54 39.9 225.5 2.3 25.8 -24 1402 No stop 04 03 00 --- 21 35 25 39.5 226.5 2.3 26.3 186 1415 03 59 31 04 03 40 J1905+0952 21 36 05 37.4 228.8 2.5 27.2 15 1415 04 03 40 04 05 30 =1903+097 21 37 55 37.2 229.3 2.5 27.5 110 1422 04 03 41 04 05 30 GRS1915 21 37 55 39.2 227.3 2.4 26.7 -24 1422 No stop 04 09 00 --- 21 41 26 38.8 228.2 2.4 27.1 186 1436 04 05 31 04 09 00 J1905+0952 21 41 26 36.8 230.2 2.6 27.9 -25 1436 No stop 04 11 30 =1903+097 21 43 56 36.5 230.9 2.6 28.2 125 1445 04 09 01 04 11 30 GRS1915 21 43 56 38.5 228.9 2.5 27.4 -24 1445 No stop 04 15 00 --- 21 47 27 38.1 229.9 2.5 27.9 186 1459 04 11 31 04 15 40 J1905+0952 21 48 07 36.0 232.0 2.7 28.7 15 1459 04 15 40 04 17 30 =1903+097 21 49 57 35.8 232.5 2.7 28.9 110 1466 04 15 41 04 17 30 GRS1915 21 49 57 37.8 230.6 2.6 28.2 -24 1466 No stop 04 21 00 --- 21 53 28 37.4 231.6 2.6 28.6 186 1479 04 17 31 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 04 21 00 J1905+0952 21 53 28 35.4 233.5 2.8 29.3 -25 1479 No stop 04 23 30 =1903+097 21 55 58 35.1 234.1 2.8 29.5 125 1489 04 21 01 04 23 30 GRS1915 21 55 58 37.1 232.2 2.7 28.9 -25 1489 No stop 04 27 00 --- 21 59 29 36.7 233.2 2.7 29.3 185 1503 04 23 31 04 27 40 J1905+0952 22 00 09 34.5 235.2 2.9 30.0 15 1503 04 27 40 04 29 30 =1903+097 22 01 59 34.3 235.7 2.9 30.2 110 1510 04 27 41 04 29 30 GRS1915 22 01 59 36.4 233.9 2.8 29.6 -25 1510 No stop 04 33 00 --- 22 05 30 36.0 234.8 2.8 29.9 185 1523 04 29 31 04 33 00 J1905+0952 22 05 30 33.9 236.6 3.0 30.5 -25 1523 No stop 04 35 30 =1903+097 22 08 00 33.6 237.2 3.0 30.8 125 1533 04 33 01 04 35 30 GRS1915 22 08 00 35.7 235.4 2.9 30.2 -25 1533 No stop 04 39 00 --- 22 11 31 35.3 236.3 2.9 30.6 185 1546 04 35 31 04 39 40 J1905+0952 22 12 11 33.0 238.3 3.1 31.2 15 1546 04 39 40 04 41 30 =1903+097 22 14 01 32.8 238.7 3.1 31.4 110 1554 04 39 41 04 41 30 GRS1915 22 14 01 34.9 237.0 3.0 30.8 -25 1554 No stop 04 45 00 --- 22 17 32 34.5 237.9 3.0 31.2 185 1567 04 41 31 04 45 00 J1905+0952 22 17 32 32.4 239.6 3.2 31.7 -25 1567 No stop 04 47 30 =1903+097 22 20 02 32.0 240.2 3.2 31.9 125 1577 04 45 01 04 47 30 J1913+0932 22 20 02 32.7 238.1 3.1 31.1 -25 1577 No stop 04 51 00 --- 22 23 32 32.3 239.0 3.2 31.4 185 1590 04 47 31 04 52 00 J1905+0952 22 24 33 31.4 241.3 3.3 32.3 35 1590 04 52 00 04 54 30 =1903+097 22 27 03 31.1 241.9 3.3 32.5 150 1600 04 52 01 04 54 30 GRS1915 22 27 03 33.3 240.3 3.2 32.0 -25 1600 No stop 04 58 00 --- 22 30 34 32.8 241.2 3.2 32.3 185 1613 04 54 31 04 58 00 J1905+0952 22 30 34 30.6 242.8 3.4 32.8 -26 1613 No stop 05 00 30 =1903+097 22 33 04 30.3 243.4 3.4 33.0 124 1623 04 58 01 05 00 30 GRS1915 22 33 04 32.5 241.8 3.3 32.6 -25 1623 No stop 05 04 00 --- 22 36 35 32.0 242.6 3.3 32.9 185 1637 05 00 31 05 04 40 J1905+0952 22 37 15 29.7 244.4 3.5 33.3 14 1637 05 04 40 05 06 30 =1903+097 22 39 05 29.5 244.8 3.5 33.4 110 1644 05 04 41 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 05 06 30 GRS1915 22 39 05 31.7 243.2 3.4 33.1 -25 1644 No stop 05 10 00 --- 22 42 36 31.2 244.1 3.4 33.3 185 1657 05 06 31 05 10 00 J1905+0952 22 42 36 29.0 245.7 3.6 33.7 -26 1657 No stop 05 12 30 =1903+097 22 45 06 28.7 246.2 3.6 33.9 124 1667 05 10 01 05 12 30 GRS1915 22 45 06 30.9 244.7 3.5 33.5 -25 1667 No stop 05 16 00 --- 22 48 37 30.4 245.5 3.5 33.8 185 1680 05 12 31 05 16 40 J1905+0952 22 49 17 28.1 247.2 3.7 34.1 14 1680 05 16 40 05 18 30 =1903+097 22 51 07 27.8 247.6 3.7 34.3 110 1688 05 16 41 05 18 30 J1913+0932 22 51 07 28.6 245.6 3.6 33.6 -24 1688 No stop 05 21 00 --- 22 53 37 28.3 246.2 3.7 33.8 126 1697 05 18 31 05 21 00 J1905+0952 22 53 37 27.5 248.2 3.8 34.4 -25 1697 No stop 05 23 30 =1903+097 22 56 08 27.1 248.8 3.8 34.6 125 1707 05 21 01 05 23 30 J2253+1608 22 56 08 53.1 180.4 0.0 0.3 -223 1707 No stop 05 30 00 =3C454.3 23 02 39 53.1 183.1 0.1 1.9 167 1732 05 23 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess221.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: 17 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: 15 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: 15 16 17 18 19 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 12.613599 0.00 GRS1915+105 10 51 26.57111 * 10 56 44.62477 10 58 57.34646 0.00 From catalog imbedded in main SCHED input file. * J1913+0932 19 11 00.869981 * 19 13 24.025348 19 14 25.756814 0.00 09 27 34.81592 * 09 32 45.37648 09 34 55.17469 0.00 From catalog imbedded in main SCHED input file. 1758+388 17 58 44.703954 * 18 00 24.765363 18 01 08.766849 0.01 * J1800+3848 38 48 32.47350 * 38 48 30.69748 38 48 27.99045 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 41.444755 0.13 * J1905+0952 09 47 30.15815 * 09 52 08.40750 09 54 04.60661 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 55 00.676644 0.65 * J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 33.13978 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 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 3.908 526.698 J1913+0932 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 0.433 53.886 J1800+3848 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 0.167 23.790 J1905+0952 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 2.853 368.153 J2253+1608 sess221.C2048 1 2 3 4 5 6 8 9 10 11 12 15 0.108 8.729 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 138.8 J1913+0932 140.2 J1800+3848 117.7 J1905+0952 140.9 J2253+1608 94.1 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