COVER INFORMATION Station: KNOCKIN (Code Kn ) 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 KNOCKIN (Code Kn ) 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 40 32 53.2 91.8 -3.3 -50.9 0 0 04 00 00 04 05 00 =1758+388 14 45 32 54.0 92.8 -3.3 -50.8 300 19 04 00 01 04 07 00 J1905+0952 14 47 33 23.0 104.5 -4.3 -36.5 4 19 04 07 00 04 09 30 =1903+097 14 50 03 23.4 105.0 -4.3 -36.4 150 29 04 07 01 04 09 30 GRS1915 14 50 03 22.8 102.3 -4.4 -37.0 -28 29 No stop 04 13 00 --- 14 53 34 23.4 103.0 -4.4 -36.9 182 43 04 09 31 04 13 00 J1905+0952 14 53 34 23.9 105.8 -4.2 -36.2 -29 43 No stop 04 15 30 =1903+097 14 56 04 24.2 106.3 -4.2 -36.1 121 52 04 13 01 04 15 30 GRS1915 14 56 04 23.7 103.6 -4.3 -36.8 -28 52 No stop 04 19 00 --- 14 59 35 24.2 104.3 -4.3 -36.6 182 66 04 15 31 04 19 40 J1905+0952 15 00 15 24.9 107.3 -4.1 -35.9 11 66 04 19 40 04 21 30 =1903+097 15 02 05 25.1 107.7 -4.1 -35.8 110 73 04 19 41 04 21 30 GRS1915 15 02 05 24.6 104.9 -4.2 -36.5 -28 73 No stop 04 25 00 --- 15 05 36 25.1 105.6 -4.2 -36.4 182 86 04 21 31 04 25 00 J1905+0952 15 05 36 25.6 108.4 -4.0 -35.6 -29 86 No stop 04 27 30 =1903+097 15 08 06 26.0 109.0 -4.0 -35.5 121 96 04 25 01 04 27 30 GRS1915 15 08 06 25.5 106.2 -4.1 -36.3 -28 96 No stop 04 31 00 --- 15 11 37 26.0 107.0 -4.1 -36.1 182 109 04 27 31 04 31 40 J1905+0952 15 12 17 26.6 109.9 -3.9 -35.2 11 109 04 31 40 04 33 30 =1903+097 15 14 07 26.8 110.3 -3.9 -35.1 110 117 04 31 41 04 33 30 GRS1915 15 14 07 26.4 107.5 -4.0 -36.0 -28 117 No stop 04 37 00 --- 15 17 38 26.9 108.3 -4.0 -35.8 182 130 04 33 31 04 37 00 J1905+0952 15 17 38 27.3 111.1 -3.8 -34.9 -29 130 No stop 04 39 30 =1903+097 15 20 08 27.7 111.7 -3.8 -34.8 121 140 04 37 01 04 39 30 GRS1915 15 20 08 27.2 108.9 -3.9 -35.7 -28 140 No stop 04 43 00 --- 15 23 39 27.7 109.6 -3.9 -35.5 182 153 04 39 31 04 43 40 J1905+0952 15 24 19 28.3 112.7 -3.7 -34.5 11 153 04 43 40 04 45 30 =1903+097 15 26 09 28.5 113.1 -3.7 -34.4 110 160 04 43 41 Schedule for KNOCKIN (Code Kn ) 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 26 09 28.1 110.2 -3.8 -35.3 -28 160 No stop 04 49 00 --- 15 29 40 28.6 111.0 -3.8 -35.1 182 174 04 45 31 04 49 00 J1905+0952 15 29 40 29.0 113.9 -3.6 -34.1 -29 174 No stop 04 51 30 =1903+097 15 32 10 29.4 114.5 -3.6 -34.0 121 184 04 49 01 04 51 30 GRS1915 15 32 10 28.9 111.6 -3.7 -34.9 -28 184 No stop 04 55 00 --- 15 35 41 29.4 112.4 -3.7 -34.7 182 197 04 51 31 04 55 40 J1905+0952 15 36 21 29.9 115.5 -3.5 -33.7 10 197 04 55 40 04 57 30 =1903+097 15 38 11 30.2 115.9 -3.5 -33.5 110 204 04 55 41 04 57 30 J1913+0932 15 38 11 28.9 114.3 -3.6 -34.0 -22 204 No stop 05 00 00 --- 15 40 41 29.2 114.9 -3.6 -33.8 128 214 04 57 31 05 00 40 J1905+0952 15 41 22 30.6 116.7 -3.4 -33.3 17 214 05 00 40 05 02 40 =1903+097 15 43 22 30.9 117.2 -3.4 -33.1 120 222 05 00 41 05 02 40 GRS1915 15 43 22 30.5 114.2 -3.5 -34.2 -29 222 No stop 05 06 10 --- 15 46 52 31.0 115.0 -3.5 -33.9 181 235 05 02 41 05 06 10 J1905+0952 15 46 52 31.4 118.0 -3.3 -32.8 -30 235 No stop 05 08 40 =1903+097 15 49 23 31.7 118.6 -3.3 -32.6 120 245 05 06 11 05 08 40 GRS1915 15 49 23 31.3 115.6 -3.4 -33.7 -29 245 No stop 05 12 10 --- 15 52 53 31.8 116.5 -3.4 -33.5 181 258 05 08 41 05 12 50 J1905+0952 15 53 34 32.2 119.6 -3.2 -32.2 10 258 05 12 50 05 14 40 =1903+097 15 55 24 32.5 120.1 -3.2 -32.1 110 265 05 12 51 05 14 40 GRS1915 15 55 24 32.1 117.1 -3.3 -33.3 -29 265 No stop 05 18 10 --- 15 58 54 32.6 117.9 -3.3 -33.0 181 279 05 14 41 05 18 10 J1905+0952 15 58 54 32.9 121.0 -3.1 -31.8 -30 279 No stop 05 20 40 =1903+097 16 01 25 33.3 121.6 -3.1 -31.5 120 289 05 18 11 05 20 40 GRS1915 16 01 25 32.9 118.5 -3.2 -32.8 -29 289 No stop 05 24 10 --- 16 04 55 33.4 119.4 -3.2 -32.5 181 302 05 20 41 05 24 50 J1905+0952 16 05 36 33.8 122.6 -3.0 -31.1 10 302 05 24 50 05 26 40 =1903+097 16 07 26 34.0 123.1 -3.0 -30.9 110 309 05 24 51 05 26 40 GRS1915 16 07 26 33.7 120.0 -3.1 -32.2 -29 309 No stop 05 30 10 --- 16 10 56 34.2 120.9 -3.1 -31.9 181 323 05 26 41 Schedule for KNOCKIN (Code Kn ) 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 10 56 34.5 124.0 -2.9 -30.6 -30 323 No stop 05 32 40 =1903+097 16 13 27 34.8 124.7 -2.9 -30.3 120 332 05 30 11 05 32 40 GRS1915 16 13 27 34.5 121.5 -3.0 -31.7 -29 332 No stop 05 36 10 --- 16 16 57 35.0 122.4 -3.0 -31.3 181 346 05 32 41 05 36 50 J1905+0952 16 17 38 35.3 125.7 -2.8 -29.9 9 346 05 36 50 05 38 40 =1903+097 16 19 28 35.5 126.2 -2.8 -29.7 110 353 05 36 51 05 38 40 GRS1915 16 19 28 35.3 123.1 -2.9 -31.1 -30 353 No stop 05 42 10 --- 16 22 58 35.7 124.0 -2.9 -30.7 180 366 05 38 41 05 42 10 J1905+0952 16 22 58 35.9 127.2 -2.7 -29.3 -31 366 No stop 05 44 40 =1903+097 16 25 29 36.3 127.8 -2.7 -29.0 119 376 05 42 11 05 44 40 GRS1915 16 25 29 36.0 124.6 -2.8 -30.5 -30 376 No stop 05 48 10 --- 16 28 59 36.5 125.6 -2.8 -30.1 180 390 05 44 41 05 48 50 J1905+0952 16 29 39 36.7 128.9 -2.6 -28.5 9 390 05 48 50 05 50 40 =1903+097 16 31 30 37.0 129.4 -2.6 -28.3 110 397 05 48 51 05 50 40 J1913+0932 16 31 30 35.8 127.6 -2.7 -29.1 -23 397 No stop 05 53 10 --- 16 34 00 36.1 128.2 -2.7 -28.8 127 406 05 50 41 05 53 50 J1905+0952 16 34 40 37.3 130.3 -2.5 -27.9 16 406 05 53 50 05 55 50 =1903+097 16 36 41 37.6 130.9 -2.5 -27.7 120 414 05 53 51 05 55 50 GRS1915 16 36 41 37.4 127.6 -2.7 -29.2 -30 414 No stop 05 59 20 --- 16 40 11 37.8 128.6 -2.6 -28.8 180 428 05 55 51 05 59 20 J1905+0952 16 40 11 38.0 131.8 -2.4 -27.2 -31 428 No stop 06 01 50 =1903+097 16 42 42 38.2 132.5 -2.4 -26.9 119 437 05 59 21 06 01 50 GRS1915 16 42 42 38.1 129.2 -2.6 -28.5 -30 437 No stop 06 05 20 --- 16 46 12 38.5 130.2 -2.5 -28.1 180 451 06 01 51 06 06 00 J1905+0952 16 46 52 38.7 133.7 -2.3 -26.3 9 451 06 06 00 06 07 50 =1903+097 16 48 43 38.9 134.2 -2.3 -26.1 110 458 06 06 01 06 07 50 GRS1915 16 48 43 38.8 130.9 -2.5 -27.7 -30 458 No stop 06 11 20 --- 16 52 13 39.2 131.9 -2.4 -27.3 180 471 06 07 51 06 11 20 J1905+0952 16 52 13 39.3 135.2 -2.2 -25.6 -31 471 No stop 06 13 50 =1903+097 16 54 44 39.5 135.9 -2.2 -25.3 119 481 06 11 21 Schedule for KNOCKIN (Code Kn ) 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 54 44 39.5 132.6 -2.4 -27.0 -30 481 No stop 06 17 20 --- 16 58 14 39.9 133.6 -2.3 -26.5 180 495 06 13 51 06 18 00 J1905+0952 16 58 54 40.0 137.2 -2.1 -24.7 8 495 06 18 00 06 19 50 =1903+097 17 00 45 40.2 137.7 -2.1 -24.4 110 502 06 18 01 06 19 50 GRS1915 17 00 45 40.1 134.3 -2.3 -26.1 -30 502 No stop 06 23 20 --- 17 04 15 40.5 135.3 -2.2 -25.7 180 515 06 19 51 06 23 20 J1905+0952 17 04 15 40.5 138.7 -2.0 -23.9 -32 515 No stop 06 25 50 =1903+097 17 06 46 40.8 139.5 -2.0 -23.5 118 525 06 23 21 06 25 50 GRS1915 17 06 46 40.8 136.1 -2.2 -25.3 -31 525 No stop 06 29 20 --- 17 10 16 41.1 137.1 -2.1 -24.8 179 538 06 25 51 06 30 00 J1905+0952 17 10 56 41.2 140.7 -1.9 -22.9 8 538 06 30 00 06 31 50 =1903+097 17 12 47 41.3 141.3 -1.9 -22.6 110 546 06 30 01 06 31 50 GRS1915 17 12 47 41.4 137.8 -2.1 -24.4 -31 546 No stop 06 35 20 --- 17 16 17 41.8 138.9 -2.0 -23.9 179 559 06 31 51 06 35 20 J1905+0952 17 16 17 41.7 142.4 -1.8 -22.0 -32 559 No stop 06 37 50 =1903+097 17 18 48 41.9 143.1 -1.8 -21.6 118 569 06 35 21 06 37 50 GRS1915 17 18 48 42.0 139.7 -2.0 -23.5 -31 569 No stop 06 41 20 --- 17 22 18 42.3 140.7 -1.9 -23.0 179 582 06 37 51 06 42 00 J1905+0952 17 22 58 42.3 144.4 -1.7 -20.9 8 582 06 42 00 06 43 50 =1903+097 17 24 49 42.4 145.0 -1.7 -20.6 110 589 06 42 01 06 43 50 J1913+0932 17 24 49 41.5 142.8 -1.8 -21.8 -25 589 No stop 06 46 20 --- 17 27 19 41.7 143.5 -1.8 -21.4 125 599 06 43 51 06 47 00 J1905+0952 17 27 59 42.7 146.0 -1.6 -20.1 14 599 06 47 00 06 49 00 =1903+097 17 29 59 42.9 146.6 -1.6 -19.7 120 607 06 47 01 06 49 00 GRS1915 17 29 59 43.1 143.1 -1.8 -21.7 -31 607 No stop 06 52 30 --- 17 33 30 43.4 144.2 -1.7 -21.1 179 620 06 49 01 06 52 30 J1905+0952 17 33 30 43.2 147.7 -1.6 -19.1 -32 620 No stop 06 55 00 =1903+097 17 36 00 43.4 148.5 -1.5 -18.7 118 630 06 52 31 06 55 00 GRS1915 17 36 00 43.6 145.0 -1.7 -20.7 -31 630 No stop 06 58 30 --- 17 39 31 43.9 146.1 -1.6 -20.1 179 643 06 55 01 Schedule for KNOCKIN (Code Kn ) 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 40 11 43.7 149.9 -1.4 -17.9 8 643 06 59 10 07 01 00 =1903+097 17 42 01 43.8 150.5 -1.4 -17.6 110 651 06 59 11 07 01 00 GRS1915 17 42 01 44.1 146.9 -1.6 -19.7 -31 651 No stop 07 04 30 --- 17 45 32 44.4 148.0 -1.5 -19.0 179 664 07 01 01 07 04 30 J1905+0952 17 45 32 44.1 151.6 -1.4 -17.0 -33 664 No stop 07 07 00 =1903+097 17 48 02 44.3 152.4 -1.3 -16.5 117 674 07 04 31 07 07 00 GRS1915 17 48 02 44.6 148.9 -1.5 -18.6 -31 674 No stop 07 10 30 --- 17 51 33 44.9 150.0 -1.4 -17.9 179 687 07 07 01 07 11 10 J1905+0952 17 52 13 44.5 153.8 -1.2 -15.7 7 687 07 11 10 07 13 00 =1903+097 17 54 03 44.7 154.4 -1.2 -15.4 110 694 07 11 11 07 13 00 GRS1915 17 54 03 45.0 150.8 -1.4 -17.5 -31 694 No stop 07 16 30 --- 17 57 34 45.3 152.0 -1.3 -16.8 179 708 07 13 01 07 16 30 J1905+0952 17 57 34 44.9 155.6 -1.2 -14.7 -33 708 No stop 07 19 00 =1903+097 18 00 04 45.0 156.5 -1.1 -14.2 117 718 07 16 31 07 19 00 GRS1915 18 00 04 45.5 152.9 -1.3 -16.3 -31 718 No stop 07 22 30 --- 18 03 35 45.7 154.0 -1.2 -15.6 179 731 07 19 01 07 23 10 J1905+0952 18 04 15 45.3 157.9 -1.0 -13.4 7 731 07 23 10 07 25 00 =1903+097 18 06 05 45.4 158.5 -1.0 -13.0 110 738 07 23 11 07 25 00 GRS1915 18 06 05 45.9 154.9 -1.2 -15.2 -31 738 No stop 07 28 30 --- 18 09 36 46.1 156.1 -1.1 -14.5 179 752 07 25 01 07 28 30 J1905+0952 18 09 36 45.6 159.7 -1.0 -12.3 -33 752 No stop 07 31 00 =1903+097 18 12 06 45.7 160.6 -0.9 -11.8 117 761 07 28 31 07 31 00 GRS1915 18 12 06 46.2 156.9 -1.1 -14.0 -31 761 No stop 07 34 30 --- 18 15 37 46.4 158.2 -1.0 -13.2 179 775 07 31 01 07 35 10 J1905+0952 18 16 17 45.9 162.0 -0.8 -10.9 7 775 07 35 10 07 37 00 =1903+097 18 18 07 46.0 162.7 -0.8 -10.5 110 782 07 35 11 07 37 00 J1913+0932 18 18 07 45.3 160.1 -0.9 -12.1 -27 782 No stop 07 39 30 --- 18 20 38 45.4 160.9 -0.9 -11.6 123 792 07 37 01 07 40 00 J1800+3848 18 21 08 75.6 195.9 0.3 12.2 -101 792 07 40 00 07 45 00 =1758+388 18 26 09 75.4 199.7 0.4 15.1 199 811 07 40 01 Schedule for KNOCKIN (Code Kn ) 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 26 49 46.4 165.7 -0.7 -8.7 -83 811 07 45 40 07 47 40 =1903+097 18 28 49 46.4 166.4 -0.6 -8.3 37 819 07 45 41 07 47 40 GRS1915 18 28 49 47.1 162.8 -0.8 -10.5 -31 819 No stop 07 51 10 --- 18 32 20 47.3 164.0 -0.7 -9.8 179 832 07 47 41 07 51 10 J1905+0952 18 32 20 46.5 167.7 -0.6 -7.5 -33 832 No stop 07 53 40 =1903+097 18 34 50 46.6 168.6 -0.5 -7.0 117 842 07 51 11 07 53 40 GRS1915 18 34 50 47.4 164.9 -0.7 -9.2 -31 842 No stop 07 57 10 --- 18 38 21 47.5 166.2 -0.6 -8.5 179 855 07 53 41 07 57 50 J1905+0952 18 39 01 46.7 170.0 -0.5 -6.1 7 855 07 57 50 07 59 40 =1903+097 18 40 51 46.8 170.7 -0.4 -5.7 110 862 07 57 51 07 59 40 GRS1915 18 40 51 47.6 167.1 -0.6 -7.9 -31 862 No stop 08 03 10 --- 18 44 22 47.7 168.4 -0.5 -7.1 179 876 07 59 41 08 03 10 J1905+0952 18 44 22 46.9 172.0 -0.4 -4.9 -33 876 No stop 08 05 40 =1903+097 18 46 52 46.9 172.9 -0.3 -4.4 117 886 08 03 11 08 05 40 GRS1915 18 46 52 47.8 169.3 -0.5 -6.6 -31 886 No stop 08 09 10 --- 18 50 23 47.9 170.5 -0.4 -5.8 179 899 08 05 41 08 09 50 J1905+0952 18 51 03 47.0 174.4 -0.3 -3.5 7 899 08 09 50 08 11 40 =1903+097 18 52 53 47.0 175.0 -0.2 -3.1 110 906 08 09 51 08 11 40 GRS1915 18 52 53 47.9 171.5 -0.4 -5.3 -31 906 No stop 08 15 10 --- 18 56 24 48.0 172.7 -0.3 -4.5 179 920 08 11 41 08 15 10 J1905+0952 18 56 24 47.1 176.3 -0.2 -2.3 -33 920 No stop 08 17 40 =1903+097 18 58 54 47.1 177.2 -0.1 -1.7 117 929 08 15 11 08 17 40 GRS1915 18 58 54 48.0 173.7 -0.3 -3.9 -31 929 No stop 08 21 10 --- 19 02 25 48.1 174.9 -0.2 -3.1 179 943 08 17 41 08 21 50 J1905+0952 19 03 05 47.1 178.7 -0.1 -0.8 8 943 08 21 50 08 23 40 =1903+097 19 04 55 47.1 179.4 -0.0 -0.4 110 950 08 21 51 08 23 40 GRS1915 19 04 55 48.1 175.9 -0.2 -2.5 -31 950 No stop 08 27 10 --- 19 08 25 48.2 177.2 -0.1 -1.8 179 964 08 23 41 08 27 10 J1905+0952 19 08 25 47.1 180.6 0.0 0.4 -32 964 No stop 08 29 40 =1903+097 19 10 56 47.1 181.6 0.1 1.0 118 973 08 27 11 Schedule for KNOCKIN (Code Kn ) 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 10 56 48.2 178.1 -0.1 -1.2 -31 973 No stop 08 33 10 --- 19 14 26 48.2 179.4 -0.0 -0.4 179 987 08 29 41 08 33 50 J1905+0952 19 15 07 47.1 183.1 0.1 1.9 8 987 08 33 50 08 35 40 =1903+097 19 16 57 47.1 183.7 0.2 2.3 110 994 08 33 51 08 35 40 J1913+0932 19 16 57 46.8 180.9 0.0 0.6 -28 994 No stop 08 38 10 --- 19 19 27 46.8 181.8 0.1 1.1 122 1004 08 35 41 08 38 50 J1905+0952 19 20 07 47.0 184.9 0.2 3.0 11 1004 08 38 50 08 40 50 =1903+097 19 22 08 47.0 185.6 0.3 3.4 120 1011 08 38 51 08 40 50 GRS1915 19 22 08 48.2 182.2 0.1 1.4 -30 1011 No stop 08 44 20 --- 19 25 38 48.1 183.5 0.2 2.1 180 1025 08 40 51 08 44 20 J1905+0952 19 25 38 46.9 186.9 0.3 4.2 -32 1025 No stop 08 46 50 =1903+097 19 28 09 46.9 187.8 0.4 4.8 118 1034 08 44 21 08 46 50 GRS1915 19 28 09 48.1 184.4 0.2 2.7 -30 1034 No stop 08 50 20 --- 19 31 39 48.1 185.7 0.3 3.5 180 1048 08 46 51 08 51 00 J1905+0952 19 32 19 46.8 189.3 0.4 5.7 8 1048 08 51 00 08 52 50 =1903+097 19 34 10 46.7 189.9 0.5 6.1 110 1055 08 51 01 08 52 50 GRS1915 19 34 10 48.0 186.6 0.3 4.1 -30 1055 No stop 08 56 20 --- 19 37 40 48.0 187.9 0.4 4.9 180 1069 08 52 51 08 56 20 J1905+0952 19 37 40 46.7 191.2 0.5 6.8 -31 1069 No stop 08 58 50 =1903+097 19 40 11 46.6 192.1 0.6 7.4 119 1078 08 56 21 08 58 50 GRS1915 19 40 11 47.9 188.8 0.4 5.4 -30 1078 No stop 09 02 20 --- 19 43 41 47.8 190.1 0.5 6.2 180 1092 08 58 51 09 03 00 J1905+0952 19 44 21 46.4 193.5 0.6 8.3 9 1092 09 03 00 09 04 50 =1903+097 19 46 12 46.4 194.2 0.7 8.7 110 1099 09 03 01 09 04 50 GRS1915 19 46 12 47.8 191.0 0.5 6.7 -29 1099 No stop 09 08 20 --- 19 49 42 47.6 192.3 0.6 7.5 181 1112 09 04 51 09 08 20 J1905+0952 19 49 42 46.2 195.4 0.7 9.4 -31 1112 No stop 09 10 50 =1903+097 19 52 13 46.1 196.3 0.8 9.9 119 1122 09 08 21 09 10 50 GRS1915 19 52 13 47.6 193.2 0.6 8.1 -29 1122 No stop 09 14 20 --- 19 55 43 47.4 194.4 0.7 8.8 181 1136 09 10 51 Schedule for KNOCKIN (Code Kn ) 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 56 23 45.9 197.8 0.8 10.8 9 1136 09 15 00 09 16 50 =1903+097 19 58 14 45.9 198.4 0.9 11.2 110 1143 09 15 01 09 16 50 GRS1915 19 58 14 47.3 195.3 0.7 9.4 -29 1143 No stop 09 20 20 --- 20 01 44 47.2 196.6 0.8 10.1 181 1156 09 16 51 09 20 20 J1905+0952 20 01 44 45.7 199.6 0.9 11.9 -30 1156 No stop 09 22 50 =1903+097 20 04 15 45.6 200.5 1.0 12.4 120 1166 09 20 21 09 22 50 GRS1915 20 04 15 47.1 197.5 0.8 10.7 -29 1166 No stop 09 26 20 --- 20 07 45 46.9 198.7 0.9 11.4 181 1179 09 22 51 09 27 00 J1905+0952 20 08 25 45.3 201.9 1.0 13.2 10 1179 09 27 00 09 28 50 =1903+097 20 10 16 45.2 202.5 1.1 13.6 110 1186 09 27 01 09 28 50 J1913+0932 20 10 16 45.3 199.8 0.9 12.0 -27 1186 No stop 09 31 20 --- 20 12 46 45.2 200.7 1.0 12.5 123 1196 09 28 51 09 32 00 J1905+0952 20 13 26 45.0 203.6 1.1 14.2 11 1196 09 32 00 09 34 00 =1903+097 20 15 26 44.9 204.3 1.1 14.6 120 1204 09 32 01 09 34 00 GRS1915 20 15 26 46.5 201.4 1.0 13.0 -28 1204 No stop 09 37 30 --- 20 18 57 46.3 202.6 1.0 13.7 182 1217 09 34 01 09 37 30 J1905+0952 20 18 57 44.7 205.5 1.2 15.3 -29 1217 No stop 09 40 00 =1903+097 20 21 27 44.5 206.3 1.2 15.8 121 1227 09 37 31 09 40 00 GRS1915 20 21 27 46.2 203.5 1.1 14.2 -28 1227 No stop 09 43 30 --- 20 24 58 46.0 204.7 1.1 14.9 182 1241 09 40 01 09 44 10 J1905+0952 20 25 38 44.2 207.7 1.3 16.6 11 1241 09 44 10 09 46 10 =1903+097 20 27 38 44.1 208.3 1.3 16.9 120 1248 09 44 11 09 46 10 GRS1915 20 27 38 45.8 205.6 1.2 15.4 -27 1248 No stop 09 49 40 --- 20 31 09 45.5 206.8 1.2 16.1 183 1262 09 46 11 09 49 40 J1905+0952 20 31 09 43.8 209.5 1.4 17.6 -29 1262 No stop 09 52 10 =1903+097 20 33 39 43.6 210.3 1.5 18.0 121 1271 09 49 41 09 52 10 GRS1915 20 33 39 45.4 207.6 1.3 16.6 -27 1271 No stop 09 55 40 --- 20 37 10 45.1 208.8 1.4 17.3 183 1285 09 52 11 09 56 20 J1905+0952 20 37 50 43.3 211.6 1.5 18.8 12 1285 09 56 20 09 58 20 =1903+097 20 39 50 43.2 212.3 1.6 19.1 120 1293 09 56 21 Schedule for KNOCKIN (Code Kn ) 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 39 50 44.9 209.7 1.4 17.8 -27 1293 No stop 10 01 50 --- 20 43 21 44.7 210.8 1.5 18.4 183 1306 09 58 21 10 01 50 J1905+0952 20 43 21 42.9 213.4 1.6 19.8 -28 1306 No stop 10 04 20 =1903+097 20 45 51 42.7 214.2 1.7 20.2 122 1316 10 01 51 10 04 20 GRS1915 20 45 51 44.5 211.6 1.5 18.9 -27 1316 No stop 10 07 50 --- 20 49 22 44.2 212.8 1.6 19.5 183 1329 10 04 21 10 08 30 J1905+0952 20 50 02 42.3 215.5 1.7 20.9 12 1329 10 08 30 10 10 30 =1903+097 20 52 02 42.1 216.1 1.8 21.2 120 1337 10 08 31 10 10 30 GRS1915 20 52 02 44.0 213.6 1.6 20.0 -26 1337 No stop 10 14 00 --- 20 55 33 43.7 214.8 1.7 20.6 184 1351 10 10 31 10 14 00 J1905+0952 20 55 33 41.8 217.2 1.8 21.8 -27 1351 No stop 10 16 30 =1903+097 20 58 03 41.6 218.0 1.9 22.2 123 1360 10 14 01 10 16 30 GRS1915 20 58 03 43.4 215.6 1.7 21.0 -26 1360 No stop 10 20 00 --- 21 01 34 43.1 216.7 1.8 21.6 184 1374 10 16 31 10 20 40 J1905+0952 21 02 14 41.2 219.2 1.9 22.8 13 1374 10 20 40 10 22 40 =1903+097 21 04 14 41.0 219.8 2.0 23.2 120 1382 10 20 41 10 22 40 J1913+0932 21 04 14 41.4 217.3 1.8 21.8 -26 1382 No stop 10 25 10 --- 21 06 45 41.2 218.1 1.9 22.2 124 1391 10 22 41 10 25 50 J1905+0952 21 07 25 40.7 220.8 2.0 23.6 12 1391 10 25 50 10 27 50 =1903+097 21 09 25 40.5 221.4 2.0 23.9 120 1399 10 25 51 10 27 50 GRS1915 21 09 25 42.4 219.1 1.9 22.9 -25 1399 No stop 10 31 20 --- 21 12 56 42.1 220.2 1.9 23.4 185 1413 10 27 51 10 31 20 J1905+0952 21 12 56 40.1 222.4 2.1 24.5 -26 1413 No stop 10 33 50 =1903+097 21 15 26 39.9 223.2 2.1 24.8 124 1422 10 31 21 10 33 50 GRS1915 21 15 26 41.8 220.9 2.0 23.8 -25 1422 No stop 10 37 20 --- 21 18 57 41.5 222.0 2.0 24.3 185 1436 10 33 51 10 38 00 J1905+0952 21 19 37 39.4 224.4 2.2 25.4 14 1436 10 38 00 10 40 00 =1903+097 21 21 37 39.2 224.9 2.2 25.7 120 1443 10 38 01 10 40 00 GRS1915 21 21 37 41.2 222.8 2.1 24.7 -25 1443 No stop 10 43 30 --- 21 25 08 40.8 223.8 2.1 25.2 185 1457 10 40 01 Schedule for KNOCKIN (Code Kn ) 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 25 08 38.8 225.9 2.3 26.2 -26 1457 No stop 10 46 00 =1903+097 21 27 38 38.6 226.6 2.3 26.5 124 1467 10 43 31 10 46 00 GRS1915 21 27 38 40.6 224.5 2.2 25.6 -24 1467 No stop 10 49 30 --- 21 31 09 40.2 225.6 2.2 26.1 186 1480 10 46 01 10 50 10 J1905+0952 21 31 49 38.1 227.8 2.4 27.1 15 1480 10 50 10 10 52 10 =1903+097 21 33 49 37.9 228.4 2.5 27.3 120 1488 10 50 11 10 52 10 GRS1915 21 33 49 39.9 226.3 2.3 26.5 -24 1488 No stop 10 55 40 --- 21 37 20 39.5 227.3 2.4 26.9 186 1501 10 52 11 10 55 40 J1905+0952 21 37 20 37.5 229.3 2.5 27.8 -25 1501 No stop 10 58 10 =1903+097 21 39 50 37.2 230.0 2.6 28.1 125 1511 10 55 41 10 58 10 GRS1915 21 39 50 39.2 228.0 2.4 27.3 -24 1511 No stop 11 01 40 --- 21 43 21 38.8 229.0 2.5 27.7 186 1525 10 58 11 11 02 20 J1905+0952 21 44 01 36.7 231.2 2.6 28.6 15 1525 11 02 20 11 04 20 =1903+097 21 46 01 36.5 231.7 2.7 28.8 120 1532 11 02 21 11 04 20 J1913+0932 21 46 01 37.1 229.4 2.5 27.8 -25 1532 No stop 11 06 50 --- 21 48 32 36.8 230.1 2.6 28.1 125 1542 11 04 21 11 07 30 J1905+0952 21 49 12 36.1 232.6 2.7 29.2 14 1542 11 07 30 11 09 30 =1903+097 21 51 12 35.8 233.1 2.7 29.4 120 1550 11 07 31 11 09 30 GRS1915 21 51 12 37.9 231.2 2.6 28.7 -25 1550 No stop 11 13 00 --- 21 54 43 37.5 232.1 2.6 29.1 185 1563 11 09 31 11 13 00 J1905+0952 21 54 43 35.4 234.0 2.8 29.8 -25 1563 No stop 11 15 30 =1903+097 21 57 13 35.1 234.7 2.8 30.1 125 1573 11 13 01 11 15 30 GRS1915 21 57 13 37.2 232.8 2.7 29.4 -25 1573 No stop 11 19 00 --- 22 00 44 36.8 233.7 2.7 29.8 185 1586 11 15 31 11 19 40 J1905+0952 22 01 24 34.6 235.7 2.9 30.5 15 1586 11 19 40 11 21 40 =1903+097 22 03 24 34.3 236.3 2.9 30.7 120 1594 11 19 41 11 21 40 GRS1915 22 03 24 36.5 234.5 2.8 30.1 -25 1594 No stop 11 25 10 --- 22 06 55 36.0 235.4 2.8 30.5 185 1608 11 21 41 11 25 10 J1905+0952 22 06 55 33.9 237.2 3.0 31.0 -25 1608 No stop 11 27 40 =1903+097 22 09 25 33.6 237.8 3.0 31.3 125 1617 11 25 11 Schedule for KNOCKIN (Code Kn ) 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 09 25 35.7 236.0 2.9 30.7 -25 1617 No stop 11 31 10 --- 22 12 56 35.3 236.9 2.9 31.1 185 1631 11 27 41 11 31 50 J1905+0952 22 13 36 33.0 238.8 3.1 31.7 15 1631 11 31 50 11 33 50 =1903+097 22 15 36 32.8 239.3 3.1 31.9 120 1639 11 31 51 11 33 50 GRS1915 22 15 36 34.9 237.6 3.0 31.3 -25 1639 No stop 11 37 20 --- 22 19 07 34.5 238.5 3.0 31.7 185 1652 11 33 51 11 37 20 J1905+0952 22 19 07 32.3 240.2 3.2 32.2 -25 1652 No stop 11 39 50 =1903+097 22 21 37 32.0 240.8 3.2 32.4 125 1662 11 37 21 11 39 50 GRS1915 22 21 37 34.1 239.2 3.1 31.9 -25 1662 No stop 11 43 20 --- 22 25 08 33.7 240.0 3.1 32.3 185 1675 11 39 51 11 44 00 J1905+0952 22 25 48 31.4 241.8 3.3 32.8 14 1675 11 44 00 11 46 00 =1903+097 22 27 48 31.2 242.3 3.4 32.9 120 1683 11 44 01 11 46 00 J1913+0932 22 27 48 31.9 240.2 3.2 32.2 -24 1683 No stop 11 48 30 --- 22 30 19 31.6 240.9 3.3 32.4 126 1693 11 46 01 11 49 10 J1905+0952 22 30 59 30.7 243.1 3.4 33.2 15 1693 11 49 10 11 52 40 =1903+097 22 34 29 30.3 243.9 3.5 33.5 210 1706 11 49 11 11 54 00 J2253+1608 22 35 49 53.3 172.3 -0.3 -4.8 -155 1706 11 54 00 12 00 00 =3C454.3 22 41 50 53.4 174.7 -0.2 -3.3 205 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: 17 Station: KNOCKIN 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