COVER INFORMATION Station: WSTRBORK (Code Wb ) 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 WSTRBORK (Code Wb ) 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: 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 371.49 371.49 371.49 371.49 435.49 435.49 435.49 435.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 04 00 00 J1800+3848 15 18 53 59.0 100.6 -2.7 0.0 0 0 04 00 00 04 05 00 =1758+388 15 23 54 59.7 101.8 -2.6 0.0 300 39 04 00 01 04 07 00 J1905+0952 15 25 55 28.4 113.1 -3.7 0.0 11 39 04 07 00 04 09 30 =1903+097 15 28 25 28.8 113.7 -3.6 0.0 150 58 04 07 01 04 09 30 GRS1915 15 28 25 28.4 110.8 -3.8 0.0 -21 58 No stop 04 13 00 --- 15 31 56 28.8 111.6 -3.7 0.0 189 85 04 09 31 04 13 00 J1905+0952 15 31 56 29.3 114.5 -3.6 0.0 -21 85 No stop 04 15 30 =1903+097 15 34 26 29.6 115.1 -3.5 0.0 129 104 04 13 01 04 15 30 GRS1915 15 34 26 29.2 112.2 -3.7 0.0 -21 104 No stop 04 19 00 --- 15 37 57 29.7 113.0 -3.6 0.0 189 131 04 15 31 04 19 40 J1905+0952 15 38 37 30.2 116.1 -3.5 0.0 19 131 04 19 40 04 21 30 =1903+097 15 40 27 30.4 116.5 -3.4 0.0 110 146 04 19 41 04 21 30 GRS1915 15 40 27 30.0 113.6 -3.6 0.0 -21 146 No stop 04 25 00 --- 15 43 58 30.5 114.4 -3.5 0.0 189 173 04 21 31 04 25 00 J1905+0952 15 43 58 30.9 117.4 -3.4 0.0 -21 173 No stop 04 27 30 =1903+097 15 46 28 31.2 118.0 -3.3 0.0 129 192 04 25 01 04 27 30 GRS1915 15 46 28 30.9 115.0 -3.5 0.0 -21 192 No stop 04 31 00 --- 15 49 59 31.3 115.8 -3.4 0.0 189 219 04 27 31 04 31 40 J1905+0952 15 50 39 31.8 119.0 -3.3 0.0 19 219 04 31 40 04 33 30 =1903+097 15 52 29 32.0 119.4 -3.2 0.0 110 233 04 31 41 04 33 30 GRS1915 15 52 29 31.7 116.4 -3.4 0.0 -21 233 No stop 04 37 00 --- 15 56 00 32.1 117.3 -3.3 0.0 189 260 04 33 31 04 37 00 J1905+0952 15 56 00 32.5 120.3 -3.2 0.0 -21 260 No stop 04 39 30 =1903+097 15 58 30 32.8 120.9 -3.1 0.0 129 280 04 37 01 04 39 30 GRS1915 15 58 30 32.5 117.9 -3.3 0.0 -21 280 No stop 04 43 00 --- 16 02 01 32.9 118.8 -3.2 0.0 189 307 04 39 31 04 43 40 J1905+0952 16 02 41 33.4 122.0 -3.1 0.0 19 307 04 43 40 04 45 30 =1903+097 16 04 31 33.6 122.4 -3.0 0.0 110 321 04 43 41 Schedule for WSTRBORK (Code Wb ) 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 16 04 31 33.3 119.4 -3.2 0.0 -21 321 No stop 04 49 00 --- 16 08 02 33.7 120.2 -3.1 0.0 189 348 04 45 31 04 49 00 J1905+0952 16 08 02 34.0 123.3 -3.0 0.0 -21 348 No stop 04 51 30 =1903+097 16 10 32 34.3 124.0 -2.9 0.0 129 367 04 49 01 04 51 30 GRS1915 16 10 32 34.1 120.9 -3.1 0.0 -21 367 No stop 04 55 00 --- 16 14 02 34.5 121.8 -3.0 0.0 189 394 04 51 31 04 55 40 J1905+0952 16 14 43 34.9 125.1 -2.9 0.0 19 394 04 55 40 04 57 30 =1903+097 16 16 33 35.1 125.5 -2.8 0.0 110 408 04 55 41 04 57 30 J1913+0932 16 16 33 33.9 123.7 -3.0 0.0 -19 408 No stop 05 00 00 --- 16 19 03 34.2 124.4 -2.9 0.0 131 428 04 57 31 05 00 40 J1905+0952 16 19 43 35.5 126.4 -2.8 0.0 20 428 05 00 40 05 02 40 =1903+097 16 21 44 35.7 126.9 -2.7 0.0 120 443 05 00 41 05 02 40 GRS1915 16 21 44 35.5 123.7 -2.9 0.0 -21 443 No stop 05 06 10 --- 16 25 14 35.9 124.7 -2.8 0.0 189 470 05 02 41 05 06 10 J1905+0952 16 25 14 36.1 127.8 -2.7 0.0 -21 470 No stop 05 08 40 =1903+097 16 27 45 36.4 128.5 -2.6 0.0 129 490 05 06 11 05 08 40 GRS1915 16 27 45 36.2 125.3 -2.8 0.0 -21 490 No stop 05 12 10 --- 16 31 15 36.7 126.2 -2.7 0.0 189 517 05 08 41 05 12 50 J1905+0952 16 31 55 36.9 129.6 -2.6 0.0 19 517 05 12 50 05 14 40 =1903+097 16 33 46 37.1 130.1 -2.5 0.0 110 531 05 12 51 05 14 40 GRS1915 16 33 46 37.0 126.9 -2.7 0.0 -21 531 No stop 05 18 10 --- 16 37 16 37.4 127.8 -2.6 0.0 189 558 05 14 41 05 18 10 J1905+0952 16 37 16 37.5 131.1 -2.5 0.0 -21 558 No stop 05 20 40 =1903+097 16 39 47 37.8 131.8 -2.4 0.0 129 577 05 18 11 05 20 40 GRS1915 16 39 47 37.7 128.5 -2.6 0.0 -21 577 No stop 05 24 10 --- 16 43 17 38.1 129.5 -2.5 0.0 189 604 05 20 41 05 24 50 J1905+0952 16 43 57 38.3 133.0 -2.4 0.0 19 604 05 24 50 05 26 40 =1903+097 16 45 48 38.5 133.5 -2.3 0.0 110 618 05 24 51 05 26 40 GRS1915 16 45 48 38.4 130.2 -2.5 0.0 -21 618 No stop 05 30 10 --- 16 49 18 38.8 131.2 -2.4 0.0 189 645 05 26 41 Schedule for WSTRBORK (Code Wb ) 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 49 18 38.9 134.5 -2.3 0.0 -21 645 No stop 05 32 40 =1903+097 16 51 49 39.1 135.2 -2.2 0.0 129 665 05 30 11 05 32 40 GRS1915 16 51 49 39.1 131.9 -2.4 0.0 -21 665 No stop 05 36 10 --- 16 55 19 39.5 132.8 -2.3 0.0 189 692 05 32 41 05 36 50 J1905+0952 16 55 59 39.6 136.4 -2.2 0.0 19 692 05 36 50 05 38 40 =1903+097 16 57 50 39.8 136.9 -2.1 0.0 110 706 05 36 51 05 38 40 GRS1915 16 57 50 39.7 133.6 -2.3 0.0 -21 706 No stop 05 42 10 --- 17 01 20 40.1 134.6 -2.2 0.0 189 733 05 38 41 05 42 10 J1905+0952 17 01 20 40.1 137.9 -2.1 0.0 -21 733 No stop 05 44 40 =1903+097 17 03 51 40.4 138.7 -2.0 0.0 129 752 05 42 11 05 44 40 GRS1915 17 03 51 40.4 135.3 -2.2 0.0 -21 752 No stop 05 48 10 --- 17 07 21 40.8 136.3 -2.1 0.0 189 779 05 44 41 05 48 50 J1905+0952 17 08 01 40.8 139.9 -2.0 0.0 19 779 05 48 50 05 50 40 =1903+097 17 09 52 41.0 140.5 -1.9 0.0 110 794 05 48 51 05 50 40 J1913+0932 17 09 52 39.9 138.3 -2.1 0.0 -19 794 No stop 05 53 10 --- 17 12 22 40.2 139.1 -2.0 0.0 131 813 05 50 41 05 53 50 J1905+0952 17 13 02 41.3 141.4 -1.9 0.0 20 813 05 53 50 05 55 50 =1903+097 17 15 02 41.5 142.0 -1.9 0.0 120 828 05 53 51 05 55 50 GRS1915 17 15 02 41.5 138.6 -2.0 0.0 -21 828 No stop 05 59 20 --- 17 18 33 41.9 139.7 -2.0 0.0 189 855 05 55 51 05 59 20 J1905+0952 17 18 33 41.8 143.1 -1.8 0.0 -21 855 No stop 06 01 50 =1903+097 17 21 03 42.0 143.9 -1.8 0.0 129 875 05 59 21 06 01 50 GRS1915 17 21 03 42.1 140.4 -1.9 0.0 -21 875 No stop 06 05 20 --- 17 24 34 42.5 141.5 -1.9 0.0 189 902 06 01 51 06 06 00 J1905+0952 17 25 14 42.4 145.2 -1.7 0.0 19 902 06 06 00 06 07 50 =1903+097 17 27 04 42.5 145.8 -1.7 0.0 110 916 06 06 01 06 07 50 GRS1915 17 27 04 42.7 142.3 -1.8 0.0 -21 916 No stop 06 11 20 --- 17 30 35 43.0 143.4 -1.8 0.0 189 943 06 07 51 06 11 20 J1905+0952 17 30 35 42.8 146.9 -1.6 0.0 -21 943 No stop 06 13 50 =1903+097 17 33 05 43.0 147.7 -1.6 0.0 129 962 06 11 21 Schedule for WSTRBORK (Code Wb ) 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 17 33 05 43.2 144.1 -1.7 0.0 -21 962 No stop 06 17 20 --- 17 36 36 43.5 145.2 -1.7 0.0 189 989 06 13 51 06 18 00 J1905+0952 17 37 16 43.4 149.0 -1.5 0.0 19 989 06 18 00 06 19 50 =1903+097 17 39 06 43.5 149.6 -1.5 0.0 110 1004 06 18 01 06 19 50 GRS1915 17 39 06 43.8 146.0 -1.6 0.0 -21 1004 No stop 06 23 20 --- 17 42 37 44.0 147.2 -1.6 0.0 189 1031 06 19 51 06 23 20 J1905+0952 17 42 37 43.8 150.7 -1.4 0.0 -21 1031 No stop 06 25 50 =1903+097 17 45 07 43.9 151.5 -1.4 0.0 129 1050 06 23 21 06 25 50 GRS1915 17 45 07 44.3 148.0 -1.5 0.0 -21 1050 No stop 06 29 20 --- 17 48 38 44.5 149.1 -1.5 0.0 189 1077 06 25 51 06 30 00 J1905+0952 17 49 18 44.2 152.9 -1.3 0.0 19 1077 06 30 00 06 31 50 =1903+097 17 51 08 44.4 153.5 -1.3 0.0 110 1091 06 30 01 06 31 50 GRS1915 17 51 08 44.7 149.9 -1.4 0.0 -21 1091 No stop 06 35 20 --- 17 54 39 45.0 151.1 -1.4 0.0 189 1118 06 31 51 06 35 20 J1905+0952 17 54 39 44.6 154.7 -1.2 0.0 -21 1118 No stop 06 37 50 =1903+097 17 57 09 44.8 155.5 -1.2 0.0 129 1137 06 35 21 06 37 50 GRS1915 17 57 09 45.2 151.9 -1.3 0.0 -21 1137 No stop 06 41 20 --- 18 00 40 45.4 153.1 -1.3 0.0 189 1165 06 37 51 06 42 00 J1905+0952 18 01 20 45.0 156.9 -1.1 0.0 19 1165 06 42 00 06 43 50 =1903+097 18 03 10 45.1 157.6 -1.1 0.0 110 1179 06 42 01 06 43 50 J1913+0932 18 03 10 44.3 155.1 -1.2 0.0 -19 1179 No stop 06 46 20 --- 18 05 41 44.5 155.9 -1.1 0.0 131 1198 06 43 51 06 47 00 J1905+0952 18 06 21 45.3 158.6 -1.0 0.0 20 1198 06 47 00 06 49 00 =1903+097 18 08 21 45.4 159.3 -1.0 0.0 120 1213 06 47 01 06 49 00 GRS1915 18 08 21 45.9 155.7 -1.1 0.0 -21 1213 No stop 06 52 30 --- 18 11 52 46.1 156.9 -1.1 0.0 189 1241 06 49 01 06 52 30 J1905+0952 18 11 52 45.6 160.5 -0.9 0.0 -21 1241 No stop 06 55 00 =1903+097 18 14 22 45.7 161.4 -0.9 0.0 129 1260 06 52 31 06 55 00 GRS1915 18 14 22 46.3 157.8 -1.0 0.0 -21 1260 No stop 06 58 30 --- 18 17 53 46.5 159.0 -1.0 0.0 189 1287 06 55 01 Schedule for WSTRBORK (Code Wb ) 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 18 18 33 45.9 162.8 -0.8 0.0 19 1287 06 59 10 07 01 00 =1903+097 18 20 23 46.0 163.5 -0.8 0.0 110 1301 06 59 11 07 01 00 GRS1915 18 20 23 46.6 159.9 -0.9 0.0 -21 1301 No stop 07 04 30 --- 18 23 54 46.8 161.1 -0.9 0.0 189 1328 07 01 01 07 04 30 J1905+0952 18 23 54 46.1 164.7 -0.7 0.0 -21 1328 No stop 07 07 00 =1903+097 18 26 24 46.2 165.6 -0.7 0.0 129 1347 07 04 31 07 07 00 GRS1915 18 26 24 46.9 162.0 -0.8 0.0 -21 1347 No stop 07 10 30 --- 18 29 55 47.0 163.2 -0.8 0.0 189 1375 07 07 01 07 11 10 J1905+0952 18 30 35 46.4 167.1 -0.6 0.0 19 1375 07 11 10 07 13 00 =1903+097 18 32 25 46.4 167.7 -0.6 0.0 110 1389 07 11 11 07 13 00 GRS1915 18 32 25 47.2 164.1 -0.7 0.0 -21 1389 No stop 07 16 30 --- 18 35 56 47.3 165.4 -0.7 0.0 189 1416 07 13 01 07 16 30 J1905+0952 18 35 56 46.5 169.0 -0.5 0.0 -21 1416 No stop 07 19 00 =1903+097 18 38 26 46.6 169.9 -0.5 0.0 129 1435 07 16 31 07 19 00 GRS1915 18 38 26 47.4 166.3 -0.6 0.0 -21 1435 No stop 07 22 30 --- 18 41 57 47.5 167.5 -0.6 0.0 189 1462 07 19 01 07 23 10 J1905+0952 18 42 37 46.7 171.4 -0.4 0.0 19 1462 07 23 10 07 25 00 =1903+097 18 44 27 46.7 172.0 -0.4 0.0 110 1476 07 23 11 07 25 00 GRS1915 18 44 27 47.6 168.4 -0.5 0.0 -21 1476 No stop 07 28 30 --- 18 47 58 47.7 169.7 -0.5 0.0 189 1503 07 25 01 07 28 30 J1905+0952 18 47 58 46.8 173.3 -0.3 0.0 -21 1503 No stop 07 31 00 =1903+097 18 50 28 46.9 174.2 -0.3 0.0 129 1523 07 28 31 07 31 00 GRS1915 18 50 28 47.7 170.6 -0.4 0.0 -21 1523 No stop 07 34 30 --- 18 53 59 47.8 171.9 -0.4 0.0 189 1550 07 31 01 07 35 10 J1905+0952 18 54 39 46.9 175.7 -0.2 0.0 19 1550 07 35 10 07 37 00 =1903+097 18 56 29 46.9 176.3 -0.2 0.0 110 1564 07 35 11 07 37 00 J1913+0932 18 56 29 46.5 173.6 -0.3 0.0 -19 1564 No stop 07 39 30 --- 18 59 00 46.6 174.5 -0.3 0.0 131 1583 07 37 01 07 40 00 J1800+3848 18 59 30 72.7 221.3 1.0 0.0 -80 1583 07 40 00 07 45 00 =1758+388 19 04 30 72.2 224.0 1.1 0.0 220 1622 07 40 01 Schedule for WSTRBORK (Code Wb ) 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 19 05 11 47.0 179.5 -0.0 0.0 -69 1622 07 45 40 07 47 40 =1903+097 19 07 11 47.0 180.2 0.0 0.0 51 1637 07 45 41 07 47 40 GRS1915 19 07 11 48.0 176.7 -0.1 0.0 -21 1637 No stop 07 51 10 --- 19 10 41 48.0 178.0 -0.1 0.0 189 1664 07 47 41 07 51 10 J1905+0952 19 10 41 47.0 181.5 0.1 0.0 -21 1664 No stop 07 53 40 =1903+097 19 13 12 47.0 182.4 0.1 0.0 129 1684 07 51 11 07 53 40 GRS1915 19 13 12 48.1 178.9 -0.0 0.0 -21 1684 No stop 07 57 10 --- 19 16 42 48.1 180.2 0.0 0.0 189 1711 07 53 41 07 57 50 J1905+0952 19 17 23 46.9 183.9 0.2 0.0 19 1711 07 57 50 07 59 40 =1903+097 19 19 13 46.9 184.5 0.2 0.0 110 1725 07 57 51 07 59 40 GRS1915 19 19 13 48.1 181.1 0.1 0.0 -21 1725 No stop 08 03 10 --- 19 22 43 48.0 182.4 0.1 0.0 189 1752 07 59 41 08 03 10 J1905+0952 19 22 43 46.9 185.8 0.3 0.0 -21 1752 No stop 08 05 40 =1903+097 19 25 14 46.8 186.7 0.3 0.0 129 1771 08 03 11 08 05 40 GRS1915 19 25 14 48.0 183.3 0.2 0.0 -21 1771 No stop 08 09 10 --- 19 28 44 48.0 184.6 0.2 0.0 189 1798 08 05 41 08 09 50 J1905+0952 19 29 24 46.7 188.2 0.4 0.0 19 1798 08 09 50 08 11 40 =1903+097 19 31 15 46.7 188.9 0.4 0.0 110 1812 08 09 51 08 11 40 GRS1915 19 31 15 48.0 185.5 0.3 0.0 -21 1812 No stop 08 15 10 --- 19 34 45 47.9 186.8 0.3 0.0 189 1840 08 11 41 08 15 10 J1905+0952 19 34 45 46.6 190.1 0.5 0.0 -21 1840 No stop 08 17 40 =1903+097 19 37 16 46.5 191.0 0.5 0.0 129 1859 08 15 11 08 17 40 GRS1915 19 37 16 47.8 187.7 0.4 0.0 -21 1859 No stop 08 21 10 --- 19 40 46 47.8 189.0 0.4 0.0 189 1886 08 17 41 08 21 50 J1905+0952 19 41 26 46.4 192.5 0.6 0.0 19 1886 08 21 50 08 23 40 =1903+097 19 43 17 46.4 193.1 0.6 0.0 110 1900 08 21 51 08 23 40 GRS1915 19 43 17 47.7 189.9 0.5 0.0 -21 1900 No stop 08 27 10 --- 19 46 47 47.6 191.2 0.5 0.0 189 1927 08 23 41 08 27 10 J1905+0952 19 46 47 46.2 194.4 0.7 0.0 -21 1927 No stop 08 29 40 =1903+097 19 49 18 46.1 195.2 0.7 0.0 129 1946 08 27 11 Schedule for WSTRBORK (Code Wb ) 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 49 18 47.5 192.1 0.6 0.0 -21 1946 No stop 08 33 10 --- 19 52 48 47.4 193.4 0.6 0.0 189 1974 08 29 41 08 33 50 J1905+0952 19 53 28 46.0 196.7 0.8 0.0 19 1974 08 33 50 08 35 40 =1903+097 19 55 19 45.9 197.4 0.8 0.0 110 1988 08 33 51 08 35 40 J1913+0932 19 55 19 45.9 194.6 0.7 0.0 -19 1988 No stop 08 38 10 --- 19 57 49 45.8 195.4 0.7 0.0 131 2007 08 35 41 08 38 50 J1905+0952 19 58 29 45.7 198.5 0.9 0.0 20 2007 08 38 50 08 40 50 =1903+097 20 00 30 45.6 199.1 0.9 0.0 120 2022 08 38 51 08 40 50 GRS1915 20 00 30 47.1 196.1 0.7 0.0 -21 2022 No stop 08 44 20 --- 20 04 00 47.0 197.3 0.8 0.0 189 2050 08 40 51 08 44 20 J1905+0952 20 04 00 45.5 200.4 1.0 0.0 -21 2050 No stop 08 46 50 =1903+097 20 06 31 45.3 201.2 1.0 0.0 129 2069 08 44 21 08 46 50 GRS1915 20 06 31 46.9 198.2 0.8 0.0 -21 2069 No stop 08 50 20 --- 20 10 01 46.7 199.5 0.9 0.0 189 2096 08 46 51 08 51 00 J1905+0952 20 10 41 45.1 202.6 1.1 0.0 19 2096 08 51 00 08 52 50 =1903+097 20 12 32 45.0 203.3 1.1 0.0 110 2110 08 51 01 08 52 50 GRS1915 20 12 32 46.6 200.3 0.9 0.0 -21 2110 No stop 08 56 20 --- 20 16 02 46.4 201.6 1.0 0.0 189 2137 08 52 51 08 56 20 J1905+0952 20 16 02 44.8 204.4 1.2 0.0 -21 2137 No stop 08 58 50 =1903+097 20 18 33 44.6 205.3 1.2 0.0 129 2156 08 56 21 08 58 50 GRS1915 20 18 33 46.2 202.4 1.0 0.0 -21 2156 No stop 09 02 20 --- 20 22 03 46.0 203.6 1.1 0.0 189 2183 08 58 51 09 03 00 J1905+0952 20 22 43 44.3 206.7 1.3 0.0 19 2183 09 03 00 09 04 50 =1903+097 20 24 34 44.2 207.3 1.3 0.0 110 2198 09 03 01 09 04 50 GRS1915 20 24 34 45.9 204.5 1.1 0.0 -21 2198 No stop 09 08 20 --- 20 28 04 45.6 205.7 1.2 0.0 189 2225 09 04 51 09 08 20 J1905+0952 20 28 04 44.0 208.4 1.4 0.0 -21 2225 No stop 09 10 50 =1903+097 20 30 35 43.8 209.2 1.4 0.0 129 2244 09 08 21 09 10 50 GRS1915 20 30 35 45.5 206.5 1.2 0.0 -21 2244 No stop 09 14 20 --- 20 34 05 45.2 207.7 1.3 0.0 189 2271 09 10 51 Schedule for WSTRBORK (Code Wb ) 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 20 34 45 43.5 210.6 1.5 0.0 19 2271 09 15 00 09 16 50 =1903+097 20 36 36 43.3 211.2 1.5 0.0 110 2285 09 15 01 09 16 50 GRS1915 20 36 36 45.1 208.5 1.3 0.0 -21 2285 No stop 09 20 20 --- 20 40 06 44.8 209.7 1.4 0.0 189 2312 09 16 51 09 20 20 J1905+0952 20 40 06 43.0 212.3 1.6 0.0 -21 2312 No stop 09 22 50 =1903+097 20 42 36 42.8 213.1 1.6 0.0 129 2332 09 20 21 09 22 50 GRS1915 20 42 36 44.6 210.5 1.4 0.0 -21 2332 No stop 09 26 20 --- 20 46 07 44.3 211.7 1.5 0.0 189 2359 09 22 51 09 27 00 J1905+0952 20 46 47 42.5 214.4 1.7 0.0 19 2359 09 27 00 09 28 50 =1903+097 20 48 37 42.3 215.0 1.7 0.0 110 2373 09 27 01 09 28 50 J1913+0932 20 48 37 42.7 212.4 1.6 0.0 -19 2373 No stop 09 31 20 --- 20 51 08 42.5 213.2 1.6 0.0 131 2392 09 28 51 09 32 00 J1905+0952 20 51 48 42.0 216.0 1.8 0.0 20 2392 09 32 00 09 34 00 =1903+097 20 53 48 41.9 216.6 1.8 0.0 120 2408 09 32 01 09 34 00 GRS1915 20 53 48 43.7 214.1 1.6 0.0 -21 2408 No stop 09 37 30 --- 20 57 19 43.4 215.3 1.7 0.0 189 2435 09 34 01 09 37 30 J1905+0952 20 57 19 41.5 217.7 1.8 0.0 -21 2435 No stop 09 40 00 =1903+097 20 59 49 41.3 218.4 1.9 0.0 129 2454 09 37 31 09 40 00 GRS1915 20 59 49 43.2 216.0 1.7 0.0 -21 2454 No stop 09 43 30 --- 21 03 20 42.9 217.1 1.8 0.0 189 2481 09 40 01 09 44 10 J1905+0952 21 04 00 40.9 219.7 2.0 0.0 19 2481 09 44 10 09 46 10 =1903+097 21 06 00 40.7 220.3 2.0 0.0 120 2497 09 44 11 09 46 10 GRS1915 21 06 00 42.6 218.0 1.8 0.0 -21 2497 No stop 09 49 40 --- 21 09 31 42.3 219.0 1.9 0.0 189 2524 09 46 11 09 49 40 J1905+0952 21 09 31 40.4 221.3 2.0 0.0 -21 2524 No stop 09 52 10 =1903+097 21 12 01 40.1 222.1 2.1 0.0 129 2543 09 49 41 09 52 10 GRS1915 21 12 01 42.1 219.8 1.9 0.0 -21 2543 No stop 09 55 40 --- 21 15 32 41.7 220.9 2.0 0.0 189 2570 09 52 11 09 56 20 J1905+0952 21 16 12 39.7 223.3 2.2 0.0 19 2570 09 56 20 09 58 20 =1903+097 21 18 12 39.5 223.9 2.2 0.0 120 2585 09 56 21 Schedule for WSTRBORK (Code Wb ) 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 21 18 12 41.4 221.7 2.0 0.0 -21 2585 No stop 10 01 50 --- 21 21 43 41.1 222.7 2.1 0.0 189 2612 09 58 21 10 01 50 J1905+0952 21 21 43 39.1 224.9 2.3 0.0 -21 2612 No stop 10 04 20 =1903+097 21 24 13 38.9 225.6 2.3 0.0 129 2632 10 01 51 10 04 20 GRS1915 21 24 13 40.8 223.5 2.1 0.0 -21 2632 No stop 10 07 50 --- 21 27 44 40.5 224.5 2.2 0.0 189 2659 10 04 21 10 08 30 J1905+0952 21 28 24 38.4 226.8 2.4 0.0 19 2659 10 08 30 10 10 30 =1903+097 21 30 24 38.2 227.4 2.4 0.0 120 2674 10 08 31 10 10 30 GRS1915 21 30 24 40.2 225.3 2.2 0.0 -21 2674 No stop 10 14 00 --- 21 33 55 39.8 226.3 2.3 0.0 189 2701 10 10 31 10 14 00 J1905+0952 21 33 55 37.8 228.3 2.5 0.0 -21 2701 No stop 10 16 30 =1903+097 21 36 25 37.5 229.0 2.5 0.0 129 2721 10 14 01 10 16 30 GRS1915 21 36 25 39.5 227.0 2.3 0.0 -21 2721 No stop 10 20 00 --- 21 39 56 39.1 228.0 2.4 0.0 189 2748 10 16 31 10 20 40 J1905+0952 21 40 36 37.0 230.2 2.6 0.0 19 2748 10 20 40 10 22 40 =1903+097 21 42 36 36.8 230.7 2.6 0.0 120 2763 10 20 41 10 22 40 J1913+0932 21 42 36 37.4 228.4 2.5 0.0 -19 2763 No stop 10 25 10 --- 21 45 07 37.1 229.1 2.5 0.0 131 2782 10 22 41 10 25 50 J1905+0952 21 45 47 36.4 231.6 2.7 0.0 20 2782 10 25 50 10 27 50 =1903+097 21 47 47 36.2 232.1 2.7 0.0 120 2798 10 25 51 10 27 50 GRS1915 21 47 47 38.2 230.2 2.5 0.0 -21 2798 No stop 10 31 20 --- 21 51 18 37.8 231.1 2.6 0.0 189 2825 10 27 51 10 31 20 J1905+0952 21 51 18 35.8 233.0 2.7 0.0 -21 2825 No stop 10 33 50 =1903+097 21 53 48 35.5 233.7 2.8 0.0 129 2844 10 31 21 10 33 50 GRS1915 21 53 48 37.5 231.8 2.6 0.0 -21 2844 No stop 10 37 20 --- 21 57 19 37.1 232.8 2.7 0.0 189 2871 10 33 51 10 38 00 J1905+0952 21 57 59 34.9 234.8 2.9 0.0 19 2871 10 38 00 10 40 00 =1903+097 21 59 59 34.7 235.3 2.9 0.0 120 2887 10 38 01 10 40 00 GRS1915 21 59 59 36.8 233.5 2.7 0.0 -21 2887 No stop 10 43 30 --- 22 03 30 36.4 234.4 2.8 0.0 189 2914 10 40 01 Schedule for WSTRBORK (Code Wb ) 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 22 03 30 34.3 236.2 2.9 0.0 -21 2914 No stop 10 46 00 =1903+097 22 06 00 33.9 236.9 3.0 0.0 129 2933 10 43 31 10 46 00 GRS1915 22 06 00 36.1 235.1 2.8 0.0 -21 2933 No stop 10 49 30 --- 22 09 31 35.6 236.0 2.9 0.0 189 2960 10 46 01 10 50 10 J1905+0952 22 10 11 33.4 237.9 3.1 0.0 19 2960 10 50 10 10 52 10 =1903+097 22 12 11 33.2 238.4 3.1 0.0 120 2976 10 50 11 10 52 10 GRS1915 22 12 11 35.3 236.7 2.9 0.0 -21 2976 No stop 10 55 40 --- 22 15 42 34.8 237.6 3.0 0.0 189 3003 10 52 11 10 55 40 J1905+0952 22 15 42 32.7 239.3 3.2 0.0 -21 3003 No stop 10 58 10 =1903+097 22 18 12 32.4 239.9 3.2 0.0 129 3022 10 55 41 10 58 10 GRS1915 22 18 12 34.5 238.2 3.0 0.0 -21 3022 No stop 11 01 40 --- 22 21 43 34.1 239.1 3.1 0.0 189 3049 10 58 11 11 02 20 J1905+0952 22 22 23 31.8 240.9 3.3 0.0 19 3049 11 02 20 11 04 20 =1903+097 22 24 23 31.6 241.4 3.3 0.0 120 3065 11 02 21 11 04 20 J1913+0932 22 24 23 32.3 239.3 3.2 0.0 -19 3065 No stop 11 06 50 --- 22 26 54 32.0 240.0 3.2 0.0 131 3084 11 04 21 11 07 30 J1905+0952 22 27 34 31.1 242.2 3.3 0.0 20 3084 11 07 30 11 09 30 =1903+097 22 29 34 30.9 242.7 3.4 0.0 120 3099 11 07 31 11 09 30 GRS1915 22 29 34 33.0 241.1 3.2 0.0 -21 3099 No stop 11 13 00 --- 22 33 05 32.6 241.9 3.3 0.0 189 3126 11 09 31 11 13 00 J1905+0952 22 33 05 30.4 243.5 3.4 0.0 -21 3126 No stop 11 15 30 =1903+097 22 35 35 30.1 244.1 3.5 0.0 129 3146 11 13 01 11 15 30 GRS1915 22 35 35 32.2 242.5 3.3 0.0 -21 3146 No stop 11 19 00 --- 22 39 06 31.8 243.4 3.4 0.0 189 3173 11 15 31 11 19 40 J1905+0952 22 39 46 29.5 245.1 3.6 0.0 19 3173 11 19 40 11 21 40 =1903+097 22 41 46 29.2 245.6 3.6 0.0 120 3188 11 19 41 11 21 40 GRS1915 22 41 46 31.4 244.0 3.4 0.0 -21 3188 No stop 11 25 10 --- 22 45 17 30.9 244.9 3.5 0.0 189 3215 11 21 41 11 25 10 J1905+0952 22 45 17 28.7 246.4 3.6 0.0 -21 3215 No stop 11 27 40 =1903+097 22 47 47 28.4 247.0 3.7 0.0 129 3235 11 25 11 Schedule for WSTRBORK (Code Wb ) 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 47 47 30.6 245.5 3.5 0.0 -21 3235 No stop 11 31 10 --- 22 51 18 30.1 246.3 3.6 0.0 189 3262 11 27 41 11 31 50 J1905+0952 22 51 58 27.8 248.0 3.8 0.0 19 3262 11 31 50 11 33 50 =1903+097 22 53 58 27.5 248.4 3.8 0.0 120 3277 11 31 51 11 33 50 GRS1915 22 53 58 29.7 246.9 3.6 0.0 -21 3277 No stop 11 37 20 --- 22 57 29 29.3 247.7 3.7 0.0 189 3304 11 33 51 11 37 20 J1905+0952 22 57 29 27.0 249.2 3.8 0.0 -21 3304 No stop 11 39 50 =1903+097 22 59 59 26.7 249.8 3.9 0.0 129 3324 11 37 21 11 39 50 GRS1915 22 59 59 28.9 248.3 3.7 0.0 -21 3324 No stop 11 43 20 --- 23 03 30 28.4 249.1 3.8 0.0 189 3351 11 39 51 11 44 00 J1905+0952 23 04 10 26.1 250.7 4.0 0.0 19 3351 11 44 00 11 46 00 =1903+097 23 06 10 25.8 251.2 4.0 0.0 120 3366 11 44 01 11 46 00 J1913+0932 23 06 10 26.6 249.2 3.9 0.0 -19 3366 No stop 11 48 30 --- 23 08 40 26.3 249.8 3.9 0.0 131 3385 11 46 01 11 49 10 J1905+0952 23 09 21 25.3 251.9 4.0 0.0 20 3385 11 49 10 11 52 40 =1903+097 23 12 51 24.8 252.6 4.1 0.0 210 3412 11 49 11 11 54 00 J2253+1608 23 14 11 53.1 187.7 0.3 0.0 -121 3412 11 54 00 12 00 00 =3C454.3 23 20 12 53.0 190.1 0.4 0.0 239 3459 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: 14 Station: WSTRBORK Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 2 Setup file default. Used with PCAL = off LO sum= 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 371.49 371.49 371.49 371.49 435.49 435.49 435.49 435.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 2 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 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