COVER INFORMATION Station: DEFFORD (Code De ) 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 DEFFORD (Code De ) 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 43 56 53.8 91.6 -3.3 -52.0 0 0 04 00 00 04 05 00 =1758+388 14 48 57 54.5 92.6 -3.2 -51.9 300 19 04 00 01 04 07 00 J1905+0952 14 50 57 23.7 104.9 -4.3 -37.0 5 19 04 07 00 04 09 30 =1903+097 14 53 28 24.1 105.5 -4.2 -36.9 150 29 04 07 01 04 09 30 GRS1915 14 53 28 23.5 102.7 -4.4 -37.6 -28 29 No stop 04 13 00 --- 14 56 58 24.0 103.5 -4.3 -37.5 182 43 04 09 31 04 13 00 J1905+0952 14 56 58 24.6 106.2 -4.2 -36.8 -29 43 No stop 04 15 30 =1903+097 14 59 29 24.9 106.8 -4.1 -36.7 121 52 04 13 01 04 15 30 GRS1915 14 59 29 24.4 104.0 -4.3 -37.4 -28 52 No stop 04 19 00 --- 15 02 59 24.9 104.8 -4.2 -37.2 182 66 04 15 31 04 19 40 J1905+0952 15 03 39 25.6 107.7 -4.0 -36.4 11 66 04 19 40 04 21 30 =1903+097 15 05 30 25.8 108.1 -4.0 -36.3 110 73 04 19 41 04 21 30 GRS1915 15 05 30 25.3 105.3 -4.2 -37.1 -28 73 No stop 04 25 00 --- 15 09 00 25.8 106.1 -4.1 -37.0 182 86 04 21 31 04 25 00 J1905+0952 15 09 00 26.3 108.9 -4.0 -36.2 -29 86 No stop 04 27 30 =1903+097 15 11 31 26.7 109.4 -3.9 -36.0 121 96 04 25 01 04 27 30 GRS1915 15 11 31 26.2 106.6 -4.1 -36.8 -28 96 No stop 04 31 00 --- 15 15 01 26.7 107.4 -4.0 -36.7 182 109 04 27 31 04 31 40 J1905+0952 15 15 41 27.3 110.4 -3.8 -35.8 11 109 04 31 40 04 33 30 =1903+097 15 17 32 27.6 110.8 -3.8 -35.7 110 117 04 31 41 04 33 30 GRS1915 15 17 32 27.1 107.9 -4.0 -36.5 -28 117 No stop 04 37 00 --- 15 21 02 27.6 108.7 -3.9 -36.3 182 130 04 33 31 04 37 00 J1905+0952 15 21 02 28.1 111.6 -3.8 -35.4 -29 130 No stop 04 39 30 =1903+097 15 23 33 28.4 112.2 -3.7 -35.3 121 140 04 37 01 04 39 30 GRS1915 15 23 33 27.9 109.3 -3.9 -36.2 -28 140 No stop 04 43 00 --- 15 27 03 28.4 110.1 -3.8 -36.0 182 153 04 39 31 04 43 40 J1905+0952 15 27 43 29.0 113.1 -3.6 -35.0 11 153 04 43 40 04 45 30 =1903+097 15 29 34 29.3 113.5 -3.6 -34.9 110 160 04 43 41 Schedule for DEFFORD (Code De ) 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 29 34 28.8 110.6 -3.8 -35.8 -28 160 No stop 04 49 00 --- 15 33 04 29.3 111.4 -3.7 -35.6 182 174 04 45 31 04 49 00 J1905+0952 15 33 04 29.8 114.4 -3.6 -34.6 -29 174 No stop 04 51 30 =1903+097 15 35 35 30.1 114.9 -3.5 -34.4 121 184 04 49 01 04 51 30 GRS1915 15 35 35 29.7 112.0 -3.7 -35.5 -29 184 No stop 04 55 00 --- 15 39 05 30.2 112.8 -3.6 -35.2 181 197 04 51 31 04 55 40 J1905+0952 15 39 45 30.7 115.9 -3.4 -34.1 10 197 04 55 40 04 57 30 =1903+097 15 41 36 31.0 116.4 -3.4 -34.0 110 204 04 55 41 04 57 30 J1913+0932 15 41 36 29.6 114.7 -3.5 -34.5 -22 204 No stop 05 00 00 --- 15 44 06 30.0 115.3 -3.5 -34.3 128 214 04 57 31 05 00 40 J1905+0952 15 44 46 31.4 117.1 -3.4 -33.7 17 214 05 00 40 05 02 40 =1903+097 15 46 47 31.7 117.6 -3.3 -33.5 120 222 05 00 41 05 02 40 GRS1915 15 46 47 31.2 114.6 -3.5 -34.7 -29 222 No stop 05 06 10 --- 15 50 17 31.7 115.5 -3.4 -34.4 181 235 05 02 41 05 06 10 J1905+0952 15 50 17 32.1 118.5 -3.3 -33.2 -30 235 No stop 05 08 40 =1903+097 15 52 48 32.5 119.1 -3.2 -33.0 120 245 05 06 11 05 08 40 GRS1915 15 52 48 32.1 116.1 -3.4 -34.2 -29 245 No stop 05 12 10 --- 15 56 18 32.6 116.9 -3.3 -33.9 181 258 05 08 41 05 12 50 J1905+0952 15 56 58 33.0 120.1 -3.2 -32.6 10 258 05 12 50 05 14 40 =1903+097 15 58 49 33.3 120.6 -3.1 -32.5 110 265 05 12 51 05 14 40 GRS1915 15 58 49 32.9 117.5 -3.3 -33.7 -29 265 No stop 05 18 10 --- 16 02 19 33.4 118.4 -3.2 -33.4 181 279 05 14 41 05 18 10 J1905+0952 16 02 19 33.7 121.4 -3.1 -32.1 -30 279 No stop 05 20 40 =1903+097 16 04 49 34.1 122.1 -3.0 -31.9 120 289 05 18 11 05 20 40 GRS1915 16 04 49 33.7 119.0 -3.2 -33.2 -29 289 No stop 05 24 10 --- 16 08 20 34.2 119.9 -3.1 -32.9 181 302 05 20 41 05 24 50 J1905+0952 16 09 00 34.6 123.1 -3.0 -31.5 10 302 05 24 50 05 26 40 =1903+097 16 10 50 34.8 123.6 -2.9 -31.3 110 309 05 24 51 05 26 40 GRS1915 16 10 50 34.5 120.5 -3.1 -32.6 -29 309 No stop 05 30 10 --- 16 14 21 35.0 121.4 -3.0 -32.3 181 323 05 26 41 Schedule for DEFFORD (Code De ) 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 14 21 35.3 124.5 -2.9 -30.9 -31 323 No stop 05 32 40 =1903+097 16 16 51 35.6 125.1 -2.8 -30.7 119 332 05 30 11 05 32 40 GRS1915 16 16 51 35.3 122.0 -3.0 -32.0 -29 332 No stop 05 36 10 --- 16 20 22 35.8 122.9 -2.9 -31.7 181 346 05 32 41 05 36 50 J1905+0952 16 21 02 36.1 126.2 -2.8 -30.2 9 346 05 36 50 05 38 40 =1903+097 16 22 52 36.4 126.7 -2.7 -30.0 110 353 05 36 51 05 38 40 GRS1915 16 22 52 36.1 123.5 -2.9 -31.4 -30 353 No stop 05 42 10 --- 16 26 23 36.5 124.5 -2.8 -31.1 180 366 05 38 41 05 42 10 J1905+0952 16 26 23 36.8 127.7 -2.7 -29.6 -31 366 No stop 05 44 40 =1903+097 16 28 53 37.1 128.3 -2.6 -29.3 119 376 05 42 11 05 44 40 GRS1915 16 28 53 36.8 125.1 -2.8 -30.8 -30 376 No stop 05 48 10 --- 16 32 24 37.3 126.0 -2.7 -30.4 180 390 05 44 41 05 48 50 J1905+0952 16 33 04 37.6 129.5 -2.6 -28.8 9 390 05 48 50 05 50 40 =1903+097 16 34 54 37.8 130.0 -2.5 -28.6 110 397 05 48 51 05 50 40 J1913+0932 16 34 54 36.6 128.1 -2.7 -29.4 -23 397 No stop 05 53 10 --- 16 37 25 36.9 128.7 -2.6 -29.1 127 406 05 50 41 05 53 50 J1905+0952 16 38 05 38.2 130.8 -2.5 -28.1 16 406 05 53 50 05 55 50 =1903+097 16 40 05 38.4 131.4 -2.4 -27.9 120 414 05 53 51 05 55 50 GRS1915 16 40 05 38.2 128.1 -2.6 -29.5 -30 414 No stop 05 59 20 --- 16 43 36 38.7 129.1 -2.5 -29.1 180 428 05 55 51 05 59 20 J1905+0952 16 43 36 38.8 132.4 -2.4 -27.4 -31 428 No stop 06 01 50 =1903+097 16 46 06 39.1 133.1 -2.3 -27.1 119 437 05 59 21 06 01 50 GRS1915 16 46 06 38.9 129.8 -2.5 -28.8 -30 437 No stop 06 05 20 --- 16 49 37 39.4 130.7 -2.4 -28.3 180 451 06 01 51 06 06 00 J1905+0952 16 50 17 39.6 134.3 -2.3 -26.5 9 451 06 06 00 06 07 50 =1903+097 16 52 07 39.8 134.8 -2.2 -26.3 110 458 06 06 01 06 07 50 GRS1915 16 52 07 39.6 131.4 -2.4 -28.0 -30 458 No stop 06 11 20 --- 16 55 38 40.1 132.4 -2.3 -27.5 180 471 06 07 51 06 11 20 J1905+0952 16 55 38 40.1 135.8 -2.2 -25.8 -32 471 No stop 06 13 50 =1903+097 16 58 08 40.4 136.5 -2.1 -25.4 118 481 06 11 21 Schedule for DEFFORD (Code De ) 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 58 08 40.3 133.2 -2.3 -27.2 -30 481 No stop 06 17 20 --- 17 01 39 40.7 134.2 -2.2 -26.7 180 495 06 13 51 06 18 00 J1905+0952 17 02 19 40.8 137.8 -2.1 -24.8 8 495 06 18 00 06 19 50 =1903+097 17 04 09 41.0 138.3 -2.0 -24.5 110 502 06 18 01 06 19 50 GRS1915 17 04 09 41.0 134.9 -2.2 -26.3 -31 502 No stop 06 23 20 --- 17 07 40 41.4 135.9 -2.1 -25.8 179 515 06 19 51 06 23 20 J1905+0952 17 07 40 41.4 139.4 -2.0 -24.0 -32 515 No stop 06 25 50 =1903+097 17 10 10 41.6 140.1 -1.9 -23.6 118 525 06 23 21 06 25 50 GRS1915 17 10 10 41.6 136.7 -2.1 -25.4 -31 525 No stop 06 29 20 --- 17 13 41 42.0 137.7 -2.0 -24.9 179 538 06 25 51 06 30 00 J1905+0952 17 14 21 42.0 141.4 -1.9 -22.9 8 538 06 30 00 06 31 50 =1903+097 17 16 11 42.2 141.9 -1.8 -22.6 110 546 06 30 01 06 31 50 GRS1915 17 16 11 42.3 138.5 -2.0 -24.5 -31 546 No stop 06 35 20 --- 17 19 42 42.6 139.5 -1.9 -24.0 179 559 06 31 51 06 35 20 J1905+0952 17 19 42 42.5 143.0 -1.8 -22.0 -32 559 No stop 06 37 50 =1903+097 17 22 12 42.8 143.8 -1.7 -21.6 118 569 06 35 21 06 37 50 GRS1915 17 22 12 42.9 140.3 -1.9 -23.6 -31 569 No stop 06 41 20 --- 17 25 43 43.2 141.4 -1.8 -23.0 179 582 06 37 51 06 42 00 J1905+0952 17 26 23 43.1 145.1 -1.7 -20.9 8 582 06 42 00 06 43 50 =1903+097 17 28 13 43.3 145.7 -1.6 -20.6 110 589 06 42 01 06 43 50 J1913+0932 17 28 13 42.3 143.4 -1.8 -21.8 -25 589 No stop 06 46 20 --- 17 30 44 42.5 144.2 -1.7 -21.4 125 599 06 43 51 06 47 00 J1905+0952 17 31 24 43.6 146.7 -1.6 -20.0 13 599 06 47 00 06 49 00 =1903+097 17 33 24 43.7 147.3 -1.6 -19.7 120 607 06 47 01 06 49 00 GRS1915 17 33 24 43.9 143.8 -1.7 -21.7 -31 607 No stop 06 52 30 --- 17 36 55 44.2 144.9 -1.7 -21.1 179 620 06 49 01 06 52 30 J1905+0952 17 36 55 44.0 148.5 -1.5 -19.0 -33 620 No stop 06 55 00 =1903+097 17 39 25 44.2 149.3 -1.5 -18.6 117 630 06 52 31 06 55 00 GRS1915 17 39 25 44.5 145.7 -1.6 -20.6 -31 630 No stop 06 58 30 --- 17 42 56 44.8 146.8 -1.6 -20.0 179 643 06 55 01 Schedule for DEFFORD (Code De ) 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 43 36 44.5 150.7 -1.4 -17.8 7 643 06 59 10 07 01 00 =1903+097 17 45 26 44.7 151.3 -1.4 -17.4 110 651 06 59 11 07 01 00 GRS1915 17 45 26 45.0 147.7 -1.5 -19.6 -31 651 No stop 07 04 30 --- 17 48 57 45.2 148.8 -1.5 -18.9 179 664 07 01 01 07 04 30 J1905+0952 17 48 57 44.9 152.4 -1.3 -16.8 -33 664 No stop 07 07 00 =1903+097 17 51 27 45.1 153.3 -1.3 -16.3 117 674 07 04 31 07 07 00 GRS1915 17 51 27 45.4 149.6 -1.4 -18.4 -31 674 No stop 07 10 30 --- 17 54 58 45.7 150.8 -1.4 -17.8 179 687 07 07 01 07 11 10 J1905+0952 17 55 38 45.4 154.7 -1.2 -15.5 7 687 07 11 10 07 13 00 =1903+097 17 57 28 45.5 155.3 -1.2 -15.1 110 694 07 11 11 07 13 00 GRS1915 17 57 28 45.9 151.6 -1.3 -17.3 -31 694 No stop 07 16 30 --- 18 00 59 46.2 152.8 -1.3 -16.6 179 708 07 13 01 07 16 30 J1905+0952 18 00 59 45.7 156.5 -1.1 -14.4 -33 708 No stop 07 19 00 =1903+097 18 03 29 45.9 157.4 -1.1 -13.9 117 718 07 16 31 07 19 00 GRS1915 18 03 29 46.3 153.7 -1.2 -16.1 -32 718 No stop 07 22 30 --- 18 07 00 46.6 154.9 -1.2 -15.4 178 731 07 19 01 07 23 10 J1905+0952 18 07 40 46.1 158.8 -1.0 -13.0 7 731 07 23 10 07 25 00 =1903+097 18 09 30 46.2 159.4 -1.0 -12.7 110 738 07 23 11 07 25 00 GRS1915 18 09 30 46.7 155.8 -1.1 -14.9 -32 738 No stop 07 28 30 --- 18 13 00 46.9 157.0 -1.1 -14.2 178 752 07 25 01 07 28 30 J1905+0952 18 13 00 46.4 160.7 -0.9 -11.9 -33 752 No stop 07 31 00 =1903+097 18 15 31 46.5 161.5 -0.9 -11.4 117 761 07 28 31 07 31 00 GRS1915 18 15 31 47.1 157.8 -1.0 -13.6 -32 761 No stop 07 34 30 --- 18 19 01 47.3 159.1 -1.0 -12.9 178 775 07 31 01 07 35 10 J1905+0952 18 19 42 46.7 163.0 -0.8 -10.5 7 775 07 35 10 07 37 00 =1903+097 18 21 32 46.8 163.7 -0.8 -10.1 110 782 07 35 11 07 37 00 J1913+0932 18 21 32 46.1 161.0 -0.9 -11.7 -27 782 No stop 07 39 30 --- 18 24 02 46.3 161.9 -0.8 -11.2 123 792 07 37 01 07 40 00 J1800+3848 18 24 32 76.1 199.3 0.4 15.1 -109 792 07 40 00 07 45 00 =1758+388 18 29 33 75.8 203.2 0.5 18.1 191 811 07 40 01 Schedule for DEFFORD (Code De ) 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 30 13 47.2 166.7 -0.6 -8.2 -91 811 07 45 40 07 47 40 =1903+097 18 32 14 47.2 167.5 -0.6 -7.8 29 819 07 45 41 07 47 40 GRS1915 18 32 14 47.9 163.8 -0.7 -10.1 -32 819 No stop 07 51 10 --- 18 35 44 48.1 165.1 -0.7 -9.3 178 832 07 47 41 07 51 10 J1905+0952 18 35 44 47.3 168.7 -0.5 -7.0 -33 832 No stop 07 53 40 =1903+097 18 38 15 47.4 169.6 -0.5 -6.4 117 842 07 51 11 07 53 40 GRS1915 18 38 15 48.2 166.0 -0.6 -8.7 -32 842 No stop 07 57 10 --- 18 41 45 48.3 167.3 -0.6 -7.9 178 855 07 53 41 07 57 50 J1905+0952 18 42 25 47.5 171.1 -0.4 -5.5 7 855 07 57 50 07 59 40 =1903+097 18 44 16 47.6 171.8 -0.4 -5.1 110 862 07 57 51 07 59 40 GRS1915 18 44 16 48.4 168.2 -0.5 -7.4 -31 862 No stop 08 03 10 --- 18 47 46 48.5 169.5 -0.5 -6.6 179 876 07 59 41 08 03 10 J1905+0952 18 47 46 47.6 173.1 -0.3 -4.3 -33 876 No stop 08 05 40 =1903+097 18 50 17 47.7 174.0 -0.3 -3.7 117 886 08 03 11 08 05 40 GRS1915 18 50 17 48.5 170.4 -0.4 -6.0 -31 886 No stop 08 09 10 --- 18 53 47 48.6 171.7 -0.4 -5.2 179 899 08 05 41 08 09 50 J1905+0952 18 54 27 47.7 175.5 -0.2 -2.8 7 899 08 09 50 08 11 40 =1903+097 18 56 18 47.7 176.2 -0.2 -2.4 110 906 08 09 51 08 11 40 GRS1915 18 56 18 48.7 172.6 -0.3 -4.6 -31 906 No stop 08 15 10 --- 18 59 48 48.7 173.9 -0.3 -3.8 179 920 08 11 41 08 15 10 J1905+0952 18 59 48 47.8 177.5 -0.1 -1.6 -33 920 No stop 08 17 40 =1903+097 19 02 19 47.8 178.4 -0.1 -1.0 117 929 08 15 11 08 17 40 GRS1915 19 02 19 48.8 174.8 -0.2 -3.2 -31 929 No stop 08 21 10 --- 19 05 49 48.8 176.1 -0.2 -2.4 179 943 08 17 41 08 21 50 J1905+0952 19 06 29 47.8 179.9 -0.0 -0.0 7 943 08 21 50 08 23 40 =1903+097 19 08 20 47.8 180.6 0.0 0.4 110 950 08 21 51 08 23 40 GRS1915 19 08 20 48.8 177.1 -0.1 -1.8 -31 950 No stop 08 27 10 --- 19 11 50 48.9 178.4 -0.1 -1.0 179 964 08 23 41 08 27 10 J1905+0952 19 11 50 47.8 181.9 0.1 1.2 -32 964 No stop 08 29 40 =1903+097 19 14 21 47.8 182.8 0.1 1.8 118 973 08 27 11 Schedule for DEFFORD (Code De ) 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 14 21 48.9 179.3 -0.0 -0.4 -31 973 No stop 08 33 10 --- 19 17 51 48.9 180.6 0.0 0.4 179 987 08 29 41 08 33 50 J1905+0952 19 18 31 47.7 184.4 0.2 2.7 8 987 08 33 50 08 35 40 =1903+097 19 20 22 47.7 185.0 0.2 3.1 110 994 08 33 51 08 35 40 J1913+0932 19 20 22 47.5 182.2 0.1 1.4 -28 994 No stop 08 38 10 --- 19 22 52 47.4 183.1 0.1 1.9 122 1004 08 35 41 08 38 50 J1905+0952 19 23 32 47.7 186.2 0.3 3.9 11 1004 08 38 50 08 40 50 =1903+097 19 25 32 47.6 186.9 0.3 4.3 120 1011 08 38 51 08 40 50 GRS1915 19 25 32 48.8 183.5 0.2 2.2 -30 1011 No stop 08 44 20 --- 19 29 03 48.8 184.8 0.2 3.0 180 1025 08 40 51 08 44 20 J1905+0952 19 29 03 47.6 188.2 0.4 5.1 -32 1025 No stop 08 46 50 =1903+097 19 31 33 47.5 189.1 0.4 5.7 118 1034 08 44 21 08 46 50 GRS1915 19 31 33 48.8 185.7 0.3 3.6 -30 1034 No stop 08 50 20 --- 19 35 04 48.7 187.0 0.3 4.4 180 1048 08 46 51 08 51 00 J1905+0952 19 35 44 47.4 190.6 0.5 6.6 8 1048 08 51 00 08 52 50 =1903+097 19 37 34 47.3 191.3 0.5 7.0 110 1055 08 51 01 08 52 50 GRS1915 19 37 34 48.7 188.0 0.4 5.0 -30 1055 No stop 08 56 20 --- 19 41 05 48.6 189.3 0.4 5.8 180 1069 08 52 51 08 56 20 J1905+0952 19 41 05 47.2 192.5 0.6 7.8 -31 1069 No stop 08 58 50 =1903+097 19 43 35 47.1 193.4 0.6 8.3 119 1078 08 56 21 08 58 50 GRS1915 19 43 35 48.5 190.2 0.5 6.4 -30 1078 No stop 09 02 20 --- 19 47 06 48.4 191.5 0.5 7.2 180 1092 08 58 51 09 03 00 J1905+0952 19 47 46 47.0 194.9 0.7 9.2 9 1092 09 03 00 09 04 50 =1903+097 19 49 36 46.9 195.6 0.7 9.6 110 1099 09 03 01 09 04 50 GRS1915 19 49 36 48.3 192.4 0.6 7.7 -29 1099 No stop 09 08 20 --- 19 53 07 48.2 193.7 0.6 8.5 181 1112 09 04 51 09 08 20 J1905+0952 19 53 07 46.8 196.8 0.8 10.4 -31 1112 No stop 09 10 50 =1903+097 19 55 37 46.6 197.7 0.8 10.9 119 1122 09 08 21 09 10 50 GRS1915 19 55 37 48.1 194.6 0.7 9.1 -29 1122 No stop 09 14 20 --- 19 59 08 48.0 195.9 0.7 9.8 181 1136 09 10 51 Schedule for DEFFORD (Code De ) 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 59 48 46.4 199.2 0.9 11.8 9 1136 09 15 00 09 16 50 =1903+097 20 01 38 46.3 199.8 0.9 12.2 110 1143 09 15 01 09 16 50 GRS1915 20 01 38 47.9 196.8 0.8 10.4 -29 1143 No stop 09 20 20 --- 20 05 09 47.7 198.0 0.8 11.2 181 1156 09 16 51 09 20 20 J1905+0952 20 05 09 46.2 201.0 1.0 12.9 -30 1156 No stop 09 22 50 =1903+097 20 07 39 46.0 201.9 1.0 13.5 120 1166 09 20 21 09 22 50 GRS1915 20 07 39 47.6 198.9 0.9 11.7 -29 1166 No stop 09 26 20 --- 20 11 10 47.4 200.2 0.9 12.5 181 1179 09 22 51 09 27 00 J1905+0952 20 11 50 45.8 203.3 1.1 14.3 10 1179 09 27 00 09 28 50 =1903+097 20 13 40 45.7 204.0 1.1 14.7 110 1186 09 27 01 09 28 50 J1913+0932 20 13 40 45.8 201.2 1.0 13.0 -28 1186 No stop 09 31 20 --- 20 16 11 45.7 202.1 1.0 13.5 122 1196 09 28 51 09 32 00 J1905+0952 20 16 51 45.4 205.1 1.2 15.3 11 1196 09 32 00 09 34 00 =1903+097 20 18 51 45.3 205.7 1.2 15.7 120 1204 09 32 01 09 34 00 GRS1915 20 18 51 47.0 202.9 1.0 14.1 -28 1204 No stop 09 37 30 --- 20 22 22 46.7 204.1 1.1 14.8 182 1217 09 34 01 09 37 30 J1905+0952 20 22 22 45.1 206.9 1.3 16.4 -29 1217 No stop 09 40 00 =1903+097 20 24 52 44.9 207.7 1.3 16.9 121 1227 09 37 31 09 40 00 GRS1915 20 24 52 46.6 205.0 1.1 15.3 -28 1227 No stop 09 43 30 --- 20 28 23 46.4 206.2 1.2 16.0 182 1241 09 40 01 09 44 10 J1905+0952 20 29 03 44.6 209.1 1.4 17.7 11 1241 09 44 10 09 46 10 =1903+097 20 31 03 44.4 209.8 1.4 18.0 120 1248 09 44 11 09 46 10 GRS1915 20 31 03 46.2 207.1 1.2 16.5 -27 1248 No stop 09 49 40 --- 20 34 34 45.9 208.3 1.3 17.2 183 1262 09 46 11 09 49 40 J1905+0952 20 34 34 44.2 210.9 1.5 18.7 -29 1262 No stop 09 52 10 =1903+097 20 37 04 44.0 211.7 1.5 19.2 121 1271 09 49 41 09 52 10 GRS1915 20 37 04 45.7 209.1 1.3 17.7 -27 1271 No stop 09 55 40 --- 20 40 35 45.5 210.3 1.4 18.4 183 1285 09 52 11 09 56 20 J1905+0952 20 41 15 43.6 213.1 1.6 19.9 12 1285 09 56 20 09 58 20 =1903+097 20 43 15 43.5 213.7 1.6 20.3 120 1293 09 56 21 Schedule for DEFFORD (Code De ) 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 43 15 45.3 211.2 1.5 18.9 -27 1293 No stop 10 01 50 --- 20 46 46 45.0 212.3 1.5 19.5 183 1306 09 58 21 10 01 50 J1905+0952 20 46 46 43.2 214.8 1.7 20.9 -28 1306 No stop 10 04 20 =1903+097 20 49 16 42.9 215.6 1.7 21.3 122 1316 10 01 51 10 04 20 GRS1915 20 49 16 44.8 213.1 1.6 20.0 -26 1316 No stop 10 07 50 --- 20 52 47 44.5 214.3 1.6 20.6 184 1329 10 04 21 10 08 30 J1905+0952 20 53 27 42.6 216.9 1.8 22.0 12 1329 10 08 30 10 10 30 =1903+097 20 55 27 42.4 217.6 1.8 22.3 120 1337 10 08 31 10 10 30 GRS1915 20 55 27 44.2 215.1 1.7 21.1 -26 1337 No stop 10 14 00 --- 20 58 58 43.9 216.2 1.7 21.7 184 1351 10 10 31 10 14 00 J1905+0952 20 58 58 42.0 218.6 1.9 22.9 -27 1351 No stop 10 16 30 =1903+097 21 01 28 41.8 219.4 1.9 23.3 123 1360 10 14 01 10 16 30 GRS1915 21 01 28 43.7 217.0 1.8 22.1 -26 1360 No stop 10 20 00 --- 21 04 59 43.4 218.1 1.8 22.7 184 1374 10 16 31 10 20 40 J1905+0952 21 05 39 41.4 220.7 2.0 24.0 13 1374 10 20 40 10 22 40 =1903+097 21 07 39 41.2 221.3 2.0 24.3 120 1382 10 20 41 10 22 40 J1913+0932 21 07 39 41.6 218.8 1.9 23.0 -26 1382 No stop 10 25 10 --- 21 10 10 41.4 219.5 1.9 23.3 124 1391 10 22 41 10 25 50 J1905+0952 21 10 50 40.9 222.2 2.1 24.8 12 1391 10 25 50 10 27 50 =1903+097 21 12 50 40.6 222.8 2.1 25.1 120 1399 10 25 51 10 27 50 GRS1915 21 12 50 42.6 220.5 1.9 24.0 -25 1399 No stop 10 31 20 --- 21 16 21 42.2 221.6 2.0 24.5 185 1413 10 27 51 10 31 20 J1905+0952 21 16 21 40.3 223.8 2.2 25.6 -26 1413 No stop 10 33 50 =1903+097 21 18 51 40.0 224.5 2.2 25.9 124 1422 10 31 21 10 33 50 GRS1915 21 18 51 42.0 222.4 2.0 24.9 -25 1422 No stop 10 37 20 --- 21 22 22 41.6 223.4 2.1 25.5 185 1436 10 33 51 10 38 00 J1905+0952 21 23 02 39.6 225.7 2.3 26.5 14 1436 10 38 00 10 40 00 =1903+097 21 25 02 39.3 226.3 2.3 26.8 120 1443 10 38 01 10 40 00 GRS1915 21 25 02 41.3 224.2 2.1 25.9 -24 1443 No stop 10 43 30 --- 21 28 33 41.0 225.2 2.2 26.4 186 1457 10 40 01 Schedule for DEFFORD (Code De ) 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 28 33 38.9 227.3 2.4 27.3 -25 1457 No stop 10 46 00 =1903+097 21 31 03 38.7 228.0 2.4 27.6 125 1467 10 43 31 10 46 00 GRS1915 21 31 03 40.7 225.9 2.2 26.7 -24 1467 No stop 10 49 30 --- 21 34 34 40.3 227.0 2.3 27.2 186 1480 10 46 01 10 50 10 J1905+0952 21 35 14 38.2 229.2 2.5 28.2 15 1480 10 50 10 10 52 10 =1903+097 21 37 14 37.9 229.7 2.5 28.4 120 1488 10 50 11 10 52 10 GRS1915 21 37 14 40.0 227.7 2.4 27.6 -24 1488 No stop 10 55 40 --- 21 40 45 39.6 228.7 2.4 28.0 186 1501 10 52 11 10 55 40 J1905+0952 21 40 45 37.5 230.7 2.6 28.8 -25 1501 No stop 10 58 10 =1903+097 21 43 15 37.2 231.4 2.6 29.1 125 1511 10 55 41 10 58 10 GRS1915 21 43 15 39.3 229.4 2.5 28.4 -25 1511 No stop 11 01 40 --- 21 46 46 38.9 230.4 2.5 28.8 185 1525 10 58 11 11 02 20 J1905+0952 21 47 26 36.7 232.5 2.7 29.6 15 1525 11 02 20 11 04 20 =1903+097 21 49 26 36.5 233.0 2.7 29.9 120 1532 11 02 21 11 04 20 J1913+0932 21 49 26 37.1 230.7 2.6 28.8 -25 1532 No stop 11 06 50 --- 21 51 56 36.8 231.4 2.6 29.1 125 1542 11 04 21 11 07 30 J1905+0952 21 52 36 36.1 233.9 2.8 30.2 14 1542 11 07 30 11 09 30 =1903+097 21 54 37 35.8 234.4 2.8 30.5 120 1550 11 07 31 11 09 30 GRS1915 21 54 37 37.9 232.5 2.6 29.8 -25 1550 No stop 11 13 00 --- 21 58 07 37.5 233.5 2.7 30.2 185 1563 11 09 31 11 13 00 J1905+0952 21 58 07 35.4 235.3 2.9 30.8 -25 1563 No stop 11 15 30 =1903+097 22 00 38 35.1 235.9 2.9 31.1 125 1573 11 13 01 11 15 30 GRS1915 22 00 38 37.2 234.1 2.7 30.5 -25 1573 No stop 11 19 00 --- 22 04 08 36.8 235.1 2.8 30.9 185 1586 11 15 31 11 19 40 J1905+0952 22 04 48 34.5 237.0 3.0 31.5 15 1586 11 19 40 11 21 40 =1903+097 22 06 49 34.3 237.5 3.0 31.7 120 1594 11 19 41 11 21 40 GRS1915 22 06 49 36.4 235.8 2.8 31.2 -25 1594 No stop 11 25 10 --- 22 10 19 36.0 236.7 2.9 31.5 185 1608 11 21 41 11 25 10 J1905+0952 22 10 19 33.8 238.4 3.1 32.1 -25 1608 No stop 11 27 40 =1903+097 22 12 50 33.5 239.0 3.1 32.3 125 1617 11 25 11 Schedule for DEFFORD (Code De ) 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 12 50 35.7 237.3 2.9 31.8 -25 1617 No stop 11 31 10 --- 22 16 20 35.2 238.2 3.0 32.1 185 1631 11 27 41 11 31 50 J1905+0952 22 17 00 32.9 240.1 3.2 32.7 14 1631 11 31 50 11 33 50 =1903+097 22 19 01 32.7 240.6 3.2 32.9 120 1639 11 31 51 11 33 50 GRS1915 22 19 01 34.8 238.9 3.0 32.4 -25 1639 No stop 11 37 20 --- 22 22 31 34.4 239.8 3.1 32.7 185 1652 11 33 51 11 37 20 J1905+0952 22 22 31 32.2 241.4 3.3 33.2 -26 1652 No stop 11 39 50 =1903+097 22 25 02 31.9 242.0 3.3 33.4 124 1662 11 37 21 11 39 50 GRS1915 22 25 02 34.0 240.4 3.1 33.0 -25 1662 No stop 11 43 20 --- 22 28 32 33.6 241.3 3.2 33.3 185 1675 11 39 51 11 44 00 J1905+0952 22 29 12 31.3 243.0 3.4 33.8 14 1675 11 44 00 11 46 00 =1903+097 22 31 13 31.0 243.5 3.4 33.9 120 1683 11 44 01 11 46 00 J1913+0932 22 31 13 31.8 241.5 3.3 33.2 -24 1683 No stop 11 48 30 --- 22 33 43 31.5 242.1 3.3 33.4 126 1693 11 46 01 11 49 10 J1905+0952 22 34 23 30.6 244.3 3.5 34.2 15 1693 11 49 10 11 52 40 =1903+097 22 37 54 30.1 245.1 3.5 34.4 210 1706 11 49 11 11 54 00 J2253+1608 22 39 14 54.0 173.6 -0.3 -4.1 -154 1706 11 54 00 12 00 00 =3C454.3 22 45 15 54.1 176.0 -0.2 -2.5 206 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: 19 Station: DEFFORD 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