COVER INFORMATION Station: EFLSBERG (Code Ef ) Experiment: Probing the radio jets in GRS1915+105 in a new puzzling accretion state Exp. Code: EM144C Schedule Version: 3.40 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: S.E.Motta Address: INAF - Osservatorio Astronomico di Brera Via E. Bianchi 46, I-23807 Merate Italy Phone: +39 3339445713 EMAIL: sara.motta@inaf.it Fax: Phone during observation: +39 3339445713 Observing mode: EVN, 6 GHz continuum Notes: Target (phase ref): GRS 1915+105 (J1905+0952) Fringe finders: J1800+3848, J2253+1608 Check source: J1913+0932 Schedule for EFLSBERG (Code Ef ) Page 2 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- Next scan frequencies: 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 21 30 00 J1800+3848 15 39 01 62.5 101.4 -2.4 -53.1 0 0 21 30 00 21 35 00 =1758+388 15 44 01 63.3 102.7 -2.3 -52.7 300 77 21 30 01 21 37 00 J1905+0952 15 46 02 32.3 116.5 -3.3 -35.3 -34 77 21 37 00 21 39 30 =1903+097 15 48 32 32.6 117.1 -3.3 -35.1 116 116 21 37 01 21 39 30 GRS1915 15 48 32 32.1 114.1 -3.5 -36.2 -41 116 No stop 21 43 00 --- 15 52 03 32.6 115.0 -3.4 -36.0 169 170 21 39 31 21 43 40 J1905+0952 15 52 43 33.2 118.1 -3.2 -34.7 -2 170 21 43 40 21 45 30 =1903+097 15 54 33 33.5 118.6 -3.2 -34.5 108 198 21 43 41 21 45 30 GRS1915 15 54 33 33.0 115.6 -3.4 -35.7 -42 198 No stop 21 49 00 --- 15 58 04 33.5 116.4 -3.3 -35.5 168 252 21 45 31 21 49 00 J1905+0952 15 58 04 34.0 119.4 -3.1 -34.2 -42 252 No stop 21 51 30 =1903+097 16 00 34 34.3 120.1 -3.1 -34.0 108 291 21 49 01 21 51 30 GRS1915 16 00 34 33.9 117.0 -3.3 -35.2 -42 291 No stop 21 55 00 --- 16 04 05 34.4 117.8 -3.2 -34.9 168 345 21 51 31 21 55 40 J1905+0952 16 04 45 34.9 121.1 -3.0 -33.5 -3 345 21 55 40 21 57 30 =1903+097 16 06 35 35.1 121.6 -3.0 -33.4 107 374 21 55 41 21 57 30 GRS1915 16 06 35 34.7 118.5 -3.2 -34.7 -42 374 No stop 22 01 00 --- 16 10 06 35.2 119.3 -3.1 -34.4 168 428 21 57 31 22 01 00 J1905+0952 16 10 06 35.6 122.5 -2.9 -33.0 -43 428 No stop 22 03 30 =1903+097 16 12 36 35.9 123.1 -2.9 -32.7 107 466 22 01 01 22 03 30 GRS1915 16 12 36 35.5 119.9 -3.1 -34.1 -42 466 No stop 22 07 00 --- 16 16 07 36.0 120.8 -3.0 -33.8 168 520 22 03 31 22 07 40 J1905+0952 16 16 47 36.5 124.2 -2.8 -32.3 -3 520 22 07 40 22 09 30 =1903+097 16 18 37 36.7 124.6 -2.8 -32.1 107 549 22 07 41 22 09 30 GRS1915 16 18 37 36.4 121.5 -3.0 -33.5 -42 549 No stop 22 13 00 --- 16 22 08 36.8 122.4 -2.9 -33.2 168 603 22 09 31 Schedule for EFLSBERG (Code Ef ) Page 3 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 22 13 00 J1905+0952 16 22 08 37.2 125.6 -2.7 -31.7 -43 603 No stop 22 15 30 =1903+097 16 24 38 37.5 126.2 -2.7 -31.4 107 642 22 13 01 22 15 30 GRS1915 16 24 38 37.2 123.0 -2.9 -32.9 -42 642 No stop 22 19 00 --- 16 28 09 37.6 123.9 -2.8 -32.5 168 696 22 15 31 22 19 40 J1905+0952 16 28 49 38.0 127.3 -2.6 -30.9 -3 696 22 19 40 22 21 30 =1903+097 16 30 39 38.3 127.8 -2.6 -30.6 107 724 22 19 41 22 21 30 GRS1915 16 30 39 38.0 124.6 -2.8 -32.2 -42 724 No stop 22 25 00 --- 16 34 10 38.4 125.5 -2.7 -31.8 168 778 22 21 31 22 25 00 J1905+0952 16 34 10 38.7 128.8 -2.5 -30.2 -43 778 No stop 22 27 30 =1903+097 16 36 40 39.0 129.5 -2.5 -29.9 107 817 22 25 01 22 27 30 GRS1915 16 36 40 38.8 126.2 -2.7 -31.5 -43 817 No stop 22 31 00 --- 16 40 11 39.2 127.1 -2.6 -31.1 167 871 22 27 31 22 31 40 J1905+0952 16 40 51 39.5 130.6 -2.4 -29.3 -4 871 22 31 40 22 33 30 =1903+097 16 42 41 39.7 131.1 -2.4 -29.1 106 899 22 31 41 22 33 30 J1913+0932 16 42 41 38.5 129.2 -2.5 -30.0 -36 899 No stop 22 37 00 --- 16 46 12 39.0 130.2 -2.5 -29.5 174 953 22 33 31 22 38 00 J1905+0952 16 47 12 40.3 132.4 -2.3 -28.5 23 953 22 38 00 22 40 30 =1903+097 16 49 42 40.6 133.1 -2.3 -28.1 150 992 22 38 01 22 40 30 GRS1915 16 49 42 40.4 129.7 -2.4 -29.9 -43 992 No stop 22 44 00 --- 16 53 13 40.8 130.7 -2.4 -29.4 167 1046 22 40 31 22 44 00 J1905+0952 16 53 13 41.0 134.1 -2.2 -27.6 -44 1046 No stop 22 46 30 =1903+097 16 55 43 41.3 134.9 -2.2 -27.2 106 1085 22 44 01 22 46 30 GRS1915 16 55 43 41.1 131.4 -2.3 -29.0 -43 1085 No stop 22 50 00 --- 16 59 14 41.5 132.4 -2.3 -28.5 167 1139 22 46 31 22 50 40 J1905+0952 16 59 54 41.7 136.1 -2.1 -26.6 -4 1139 22 50 40 22 52 30 =1903+097 17 01 44 41.9 136.6 -2.1 -26.3 106 1167 22 50 41 22 52 30 GRS1915 17 01 44 41.8 133.2 -2.2 -28.2 -43 1167 No stop 22 56 00 --- 17 05 15 42.2 134.2 -2.2 -27.7 167 1221 22 52 31 22 56 00 J1905+0952 17 05 15 42.3 137.7 -2.0 -25.8 -44 1221 No stop 22 58 30 =1903+097 17 07 45 42.6 138.4 -2.0 -25.4 106 1260 22 56 01 Schedule for EFLSBERG (Code Ef ) Page 4 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 22 58 30 GRS1915 17 07 45 42.5 134.9 -2.1 -27.3 -43 1260 No stop 23 02 00 --- 17 11 16 42.9 136.0 -2.1 -26.7 167 1314 22 58 31 23 02 40 J1905+0952 17 11 56 43.0 139.7 -1.9 -24.7 -5 1314 23 02 40 23 04 30 =1903+097 17 13 46 43.2 140.3 -1.9 -24.4 105 1342 23 02 41 23 04 30 GRS1915 17 13 46 43.2 136.7 -2.0 -26.4 -43 1342 No stop 23 08 00 --- 17 17 17 43.6 137.8 -2.0 -25.8 167 1396 23 04 31 23 08 00 J1905+0952 17 17 17 43.5 141.4 -1.8 -23.8 -45 1396 No stop 23 10 30 =1903+097 17 19 47 43.8 142.1 -1.8 -23.3 105 1435 23 08 01 23 10 30 GRS1915 17 19 47 43.8 138.6 -1.9 -25.4 -44 1435 No stop 23 14 00 --- 17 23 18 44.2 139.6 -1.9 -24.8 166 1489 23 10 31 23 14 40 J1905+0952 17 23 58 44.2 143.5 -1.7 -22.6 -5 1489 23 14 40 23 16 30 =1903+097 17 25 48 44.4 144.0 -1.7 -22.3 105 1517 23 14 41 23 16 30 GRS1915 17 25 48 44.4 140.4 -1.8 -24.4 -44 1517 No stop 23 20 00 --- 17 29 19 44.8 141.5 -1.8 -23.8 166 1572 23 16 31 23 20 00 J1905+0952 17 29 19 44.7 145.2 -1.6 -21.6 -45 1572 No stop 23 22 30 =1903+097 17 31 49 44.9 146.0 -1.6 -21.2 105 1610 23 20 01 23 22 30 GRS1915 17 31 49 45.0 142.3 -1.7 -23.3 -44 1610 No stop 23 26 00 --- 17 35 20 45.4 143.5 -1.7 -22.7 166 1664 23 22 31 23 26 40 J1905+0952 17 36 00 45.3 147.3 -1.5 -20.4 -5 1664 23 26 40 23 28 30 =1903+097 17 37 50 45.4 147.9 -1.5 -20.0 105 1693 23 26 41 23 28 30 GRS1915 17 37 50 45.6 144.3 -1.6 -22.2 -44 1693 No stop 23 32 00 --- 17 41 21 45.9 145.4 -1.6 -21.6 166 1747 23 28 31 23 32 00 J1905+0952 17 41 21 45.7 149.1 -1.4 -19.4 -45 1747 No stop 23 34 30 =1903+097 17 43 51 45.9 149.9 -1.4 -18.9 105 1785 23 32 01 23 34 30 J1913+0932 17 43 51 45.0 147.5 -1.5 -20.3 -39 1785 No stop 23 38 00 --- 17 47 22 45.3 148.7 -1.5 -19.6 171 1840 23 34 31 23 39 00 J1905+0952 17 48 22 46.3 151.5 -1.3 -18.0 20 1840 23 39 00 23 41 30 =1903+097 17 50 52 46.5 152.3 -1.3 -17.4 150 1878 23 39 01 23 41 30 GRS1915 17 50 52 46.8 148.6 -1.4 -19.7 -44 1878 No stop 23 45 00 --- 17 54 23 47.0 149.8 -1.4 -19.0 166 1932 23 41 31 Schedule for EFLSBERG (Code Ef ) Page 5 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 23 45 00 J1905+0952 17 54 23 46.7 153.5 -1.2 -16.7 -45 1932 No stop 23 47 30 =1903+097 17 56 53 46.9 154.4 -1.2 -16.2 105 1971 23 45 01 23 47 30 GRS1915 17 56 53 47.2 150.6 -1.3 -18.5 -44 1971 No stop 23 51 00 --- 18 00 24 47.5 151.8 -1.3 -17.8 166 2025 23 47 31 23 51 40 J1905+0952 18 01 04 47.2 155.8 -1.1 -15.3 -6 2025 23 51 40 23 53 30 =1903+097 18 02 54 47.3 156.5 -1.1 -14.9 104 2053 23 51 41 23 53 30 GRS1915 18 02 54 47.7 152.7 -1.2 -17.3 -44 2053 No stop 23 57 00 --- 18 06 25 47.9 153.9 -1.2 -16.5 166 2107 23 53 31 23 57 00 J1905+0952 18 06 25 47.5 157.7 -1.0 -14.2 -46 2107 No stop 23 59 30 =1903+097 18 08 55 47.7 158.6 -1.0 -13.6 104 2146 23 57 01 --- Start: Wed 16 Jun 2021 Day 167 -- Stop: Thu 17 Jun 2021 Day 168 --- 23 59 30 GRS1915 18 08 55 48.1 154.8 -1.1 -16.0 -44 2146 No stop 00 03 00 --- 18 12 26 48.3 156.1 -1.1 -15.2 166 2200 23 59 31 00 03 40 J1905+0952 18 13 06 47.9 160.1 -0.9 -12.7 -6 2200 00 03 40 00 05 30 =1903+097 18 14 56 48.0 160.8 -0.9 -12.3 104 2229 00 03 41 00 05 30 GRS1915 18 14 56 48.5 157.0 -1.0 -14.7 -44 2229 No stop 00 09 00 --- 18 18 27 48.7 158.2 -1.0 -13.9 166 2283 00 05 31 00 09 00 J1905+0952 18 18 27 48.2 162.0 -0.8 -11.5 -46 2283 No stop 00 11 30 =1903+097 18 20 57 48.3 162.9 -0.8 -10.9 104 2321 00 09 01 00 11 30 GRS1915 18 20 57 48.9 159.1 -0.9 -13.3 -44 2321 No stop 00 15 00 --- 18 24 28 49.1 160.4 -0.9 -12.5 166 2375 00 11 31 00 15 40 J1905+0952 18 25 08 48.5 164.5 -0.7 -10.0 -6 2375 00 15 40 00 17 30 =1903+097 18 26 58 48.6 165.1 -0.7 -9.5 104 2404 00 15 41 00 17 30 GRS1915 18 26 58 49.2 161.3 -0.8 -12.0 -44 2404 No stop 00 21 00 --- 18 30 29 49.4 162.6 -0.8 -11.2 166 2458 00 17 31 00 21 00 J1905+0952 18 30 29 48.7 166.4 -0.6 -8.7 -46 2458 No stop 00 23 30 =1903+097 18 32 59 48.8 167.3 -0.6 -8.1 104 2497 00 21 01 00 23 30 GRS1915 18 32 59 49.5 163.5 -0.7 -10.6 -44 2497 No stop 00 27 00 --- 18 36 30 49.6 164.9 -0.7 -9.7 166 2551 00 23 31 Schedule for EFLSBERG (Code Ef ) Page 6 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 00 27 40 J1905+0952 18 37 10 48.9 168.9 -0.5 -7.1 -6 2551 00 27 40 00 29 30 =1903+097 18 39 00 49.0 169.6 -0.5 -6.7 104 2579 00 27 41 00 29 30 GRS1915 18 39 00 49.7 165.8 -0.6 -9.1 -44 2579 No stop 00 33 00 --- 18 42 31 49.9 167.1 -0.6 -8.3 166 2633 00 29 31 00 33 00 J1905+0952 18 42 31 49.1 170.9 -0.4 -5.9 -46 2633 No stop 00 35 30 =1903+097 18 45 01 49.1 171.8 -0.4 -5.3 104 2672 00 33 01 00 35 30 J1913+0932 18 45 01 48.6 169.0 -0.5 -7.1 -40 2672 No stop 00 39 00 --- 18 48 32 48.7 170.3 -0.4 -6.2 170 2726 00 35 31 00 40 00 J1905+0952 18 49 32 49.2 173.5 -0.3 -4.2 18 2726 00 40 00 00 42 30 =1903+097 18 52 02 49.3 174.5 -0.2 -3.6 150 2764 00 40 01 00 42 30 GRS1915 18 52 02 50.1 170.7 -0.4 -6.0 -44 2764 No stop 00 46 00 --- 18 55 33 50.2 172.1 -0.3 -5.1 166 2819 00 42 31 00 46 00 J1905+0952 18 55 33 49.3 175.8 -0.2 -2.7 -45 2819 No stop 00 48 30 =1903+097 18 58 03 49.3 176.7 -0.1 -2.1 105 2857 00 46 01 00 48 30 GRS1915 18 58 03 50.3 173.0 -0.3 -4.5 -44 2857 No stop 00 52 00 --- 19 01 34 50.3 174.4 -0.2 -3.6 166 2911 00 48 31 00 52 40 J1905+0952 19 02 14 49.4 178.3 -0.1 -1.1 -5 2911 00 52 40 00 54 30 =1903+097 19 04 04 49.4 179.0 -0.0 -0.6 105 2940 00 52 41 00 54 30 GRS1915 19 04 04 50.4 175.3 -0.2 -3.0 -44 2940 No stop 00 58 00 --- 19 07 35 50.4 176.7 -0.1 -2.2 166 2994 00 54 31 00 58 00 J1905+0952 19 07 35 49.4 180.3 0.0 0.2 -45 2994 No stop 01 00 30 =1903+097 19 10 05 49.4 181.3 0.1 0.8 105 3032 00 58 01 01 00 30 GRS1915 19 10 05 50.4 177.6 -0.1 -1.5 -44 3032 No stop 01 04 00 --- 19 13 36 50.5 179.0 -0.0 -0.7 166 3087 01 00 31 01 04 40 J1905+0952 19 14 16 49.3 182.9 0.1 1.8 -5 3087 01 04 40 01 06 30 =1903+097 19 16 06 49.3 183.6 0.2 2.3 105 3115 01 04 41 01 06 30 GRS1915 19 16 06 50.5 180.0 -0.0 -0.0 -44 3115 No stop 01 10 00 --- 19 19 37 50.5 181.3 0.1 0.8 166 3169 01 06 31 01 10 00 J1905+0952 19 19 37 49.3 184.9 0.2 3.1 -45 3169 No stop 01 12 30 =1903+097 19 22 07 49.3 185.8 0.3 3.8 105 3208 01 10 01 Schedule for EFLSBERG (Code Ef ) Page 7 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 01 12 30 GRS1915 19 22 07 50.4 182.3 0.1 1.5 -43 3208 No stop 01 16 00 --- 19 25 38 50.4 183.6 0.2 2.3 167 3262 01 12 31 01 16 40 J1905+0952 19 26 18 49.2 187.4 0.3 4.8 -5 3262 01 16 40 01 18 30 =1903+097 19 28 08 49.1 188.1 0.4 5.2 105 3290 01 16 41 01 30 30 GRS1915 19 40 10 50.2 189.2 0.4 5.9 677 3290 01 30 30 01 34 00 --- 19 43 41 50.1 190.5 0.5 6.8 210 3344 01 30 31 01 34 40 J1905+0952 19 44 21 48.6 194.1 0.6 9.1 -4 3344 01 34 40 01 36 30 =1903+097 19 46 11 48.6 194.8 0.7 9.5 106 3372 01 34 41 01 36 30 J1913+0932 19 46 11 48.5 191.9 0.5 7.6 -41 3372 No stop 01 39 00 --- 19 48 42 48.4 192.8 0.6 8.2 109 3411 01 36 31 01 39 00 J1905+0952 19 48 42 48.5 195.7 0.7 10.1 -42 3411 No stop 01 41 30 =1903+097 19 51 12 48.4 196.6 0.7 10.6 108 3450 01 39 01 01 42 00 J1800+3848 19 51 42 67.3 249.6 1.8 49.9 -138 3450 01 42 00 01 47 00 =1758+388 19 56 43 66.6 251.2 1.9 50.6 162 3527 01 42 01 01 49 00 J1905+0952 19 58 43 48.0 199.3 0.9 12.3 -43 3527 01 49 00 01 51 30 =1903+097 20 01 14 47.8 200.2 0.9 12.9 107 3566 01 49 01 01 51 30 GRS1915 20 01 14 49.4 197.1 0.8 11.0 -42 3566 No stop 01 55 00 --- 20 04 44 49.2 198.4 0.8 11.8 168 3620 01 51 31 01 55 00 J1905+0952 20 04 44 47.6 201.5 1.0 13.7 -43 3620 No stop 01 57 30 =1903+097 20 07 15 47.5 202.4 1.0 14.2 107 3658 01 55 01 01 57 30 GRS1915 20 07 15 49.1 199.3 0.9 12.4 -41 3658 No stop 02 01 00 --- 20 10 45 48.9 200.6 0.9 13.2 169 3713 01 57 31 02 01 40 J1905+0952 20 11 25 47.2 203.9 1.1 15.1 -3 3713 02 01 40 02 03 30 =1903+097 20 13 16 47.1 204.5 1.1 15.5 107 3741 02 01 41 02 03 30 GRS1915 20 13 16 48.8 201.5 1.0 13.7 -41 3741 No stop 02 07 00 --- 20 16 46 48.5 202.8 1.0 14.5 169 3795 02 03 31 02 07 00 J1905+0952 20 16 46 46.9 205.7 1.2 16.3 -42 3795 No stop 02 09 30 =1903+097 20 19 17 46.7 206.6 1.2 16.8 108 3834 02 07 01 02 09 30 GRS1915 20 19 17 48.4 203.7 1.1 15.1 -41 3834 No stop 02 13 00 --- 20 22 47 48.2 204.9 1.1 15.8 169 3888 02 09 31 Schedule for EFLSBERG (Code Ef ) Page 8 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 02 13 40 J1905+0952 20 23 27 46.4 208.0 1.3 17.6 -2 3888 02 13 40 02 15 30 =1903+097 20 25 18 46.3 208.6 1.3 18.0 108 3916 02 13 41 02 15 30 GRS1915 20 25 18 48.0 205.8 1.2 16.4 -40 3916 No stop 02 19 00 --- 20 28 48 47.7 207.0 1.2 17.1 170 3970 02 15 31 02 19 00 J1905+0952 20 28 48 46.0 209.8 1.4 18.7 -41 3970 No stop 02 21 30 =1903+097 20 31 19 45.8 210.7 1.4 19.2 109 4009 02 19 01 02 21 30 GRS1915 20 31 19 47.6 207.9 1.3 17.6 -40 4009 No stop 02 25 00 --- 20 34 49 47.3 209.1 1.3 18.4 170 4063 02 21 31 02 25 40 J1905+0952 20 35 29 45.4 212.0 1.5 20.0 -1 4063 02 25 40 02 27 30 =1903+097 20 37 20 45.3 212.6 1.5 20.4 109 4091 02 25 41 02 27 30 GRS1915 20 37 20 47.1 210.0 1.4 18.9 -40 4091 No stop 02 31 00 --- 20 40 50 46.8 211.2 1.4 19.6 170 4145 02 27 31 02 31 00 J1905+0952 20 40 50 45.0 213.8 1.6 21.0 -41 4145 No stop 02 33 30 =1903+097 20 43 21 44.8 214.6 1.6 21.5 109 4184 02 31 01 02 33 30 GRS1915 20 43 21 46.6 212.0 1.5 20.1 -39 4184 No stop 02 37 00 --- 20 46 51 46.3 213.2 1.5 20.8 171 4238 02 33 31 02 37 40 J1905+0952 20 47 31 44.4 215.9 1.7 22.3 0 4238 02 37 40 02 39 30 =1903+097 20 49 22 44.2 216.5 1.7 22.6 110 4266 02 37 41 02 39 30 GRS1915 20 49 22 46.1 214.0 1.6 21.2 -39 4266 No stop 02 43 00 --- 20 52 52 45.8 215.2 1.6 21.9 171 4321 02 39 31 02 43 00 J1905+0952 20 52 52 43.9 217.6 1.8 23.2 -40 4321 No stop 02 45 30 =1903+097 20 55 23 43.6 218.4 1.8 23.6 110 4359 02 43 01 02 45 30 J1913+0932 20 55 23 44.1 215.8 1.7 22.2 -39 4359 No stop 02 49 00 --- 20 58 53 43.7 216.9 1.7 22.8 171 4413 02 45 31 02 50 00 J1905+0952 20 59 53 43.2 219.8 1.9 24.4 19 4413 02 50 00 02 52 30 =1903+097 21 02 24 42.9 220.6 1.9 24.8 150 4452 02 50 01 02 52 30 GRS1915 21 02 24 44.9 218.2 1.8 23.6 -38 4452 No stop 02 56 00 --- 21 05 54 44.5 219.3 1.8 24.2 172 4506 02 52 31 02 56 00 J1905+0952 21 05 54 42.5 221.6 2.0 25.4 -39 4506 No stop 02 58 30 =1903+097 21 08 25 42.3 222.4 2.0 25.8 111 4545 02 56 01 Schedule for EFLSBERG (Code Ef ) Page 9 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 02 58 30 GRS1915 21 08 25 44.3 220.1 1.9 24.7 -38 4545 No stop 03 02 00 --- 21 11 55 43.9 221.2 1.9 25.3 172 4599 02 58 31 03 02 40 J1905+0952 21 12 35 41.8 223.6 2.1 26.5 1 4599 03 02 40 03 04 30 =1903+097 21 14 26 41.6 224.2 2.1 26.7 110 4627 03 02 41 03 04 30 GRS1915 21 14 26 43.6 222.0 2.0 25.7 -38 4627 No stop 03 08 00 --- 21 17 56 43.2 223.1 2.0 26.2 172 4681 03 04 31 03 08 00 J1905+0952 21 17 56 41.2 225.2 2.2 27.3 -38 4681 No stop 03 10 30 =1903+097 21 20 27 40.9 225.9 2.2 27.6 112 4720 03 08 01 03 10 30 GRS1915 21 20 27 43.0 223.8 2.1 26.6 -37 4720 No stop 03 14 00 --- 21 23 57 42.6 224.9 2.1 27.2 173 4774 03 10 31 03 14 40 J1905+0952 21 24 37 40.5 227.1 2.3 28.2 2 4774 03 14 40 03 16 30 =1903+097 21 26 28 40.2 227.7 2.3 28.5 110 4802 03 14 41 03 16 30 GRS1915 21 26 28 42.3 225.6 2.2 27.6 -37 4802 No stop 03 20 00 --- 21 29 58 41.9 226.6 2.2 28.1 173 4856 03 16 31 03 20 00 J1905+0952 21 29 58 39.8 228.7 2.4 29.0 -38 4856 No stop 03 22 30 =1903+097 21 32 29 39.5 229.4 2.4 29.3 112 4895 03 20 01 03 22 30 GRS1915 21 32 29 41.6 227.3 2.3 28.4 -37 4895 No stop 03 26 00 --- 21 35 59 41.2 228.4 2.3 28.9 173 4949 03 22 31 03 26 40 J1905+0952 21 36 39 39.0 230.5 2.5 29.9 2 4949 03 26 40 03 28 30 =1903+097 21 38 30 38.8 231.0 2.5 30.1 110 4978 03 26 41 03 28 30 GRS1915 21 38 30 40.9 229.1 2.4 29.3 -37 4978 No stop 03 32 00 --- 21 42 00 40.5 230.1 2.4 29.8 173 5032 03 28 31 03 32 00 J1905+0952 21 42 00 38.4 232.0 2.6 30.6 -38 5032 No stop 03 34 30 =1903+097 21 44 31 38.0 232.6 2.6 30.9 112 5070 03 32 01 03 34 30 GRS1915 21 44 31 40.2 230.8 2.5 30.1 -37 5070 No stop 03 38 00 --- 21 48 01 39.7 231.7 2.5 30.6 173 5124 03 34 31 03 38 40 J1905+0952 21 48 41 37.5 233.8 2.7 31.4 2 5124 03 38 40 03 40 30 =1903+097 21 50 32 37.3 234.2 2.7 31.6 110 5153 03 38 41 03 40 30 GRS1915 21 50 32 39.4 232.4 2.6 30.9 -38 5153 No stop 03 44 00 --- 21 54 02 39.0 233.4 2.6 31.3 172 5207 03 40 31 Schedule for EFLSBERG (Code Ef ) Page 10 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 03 44 00 J1905+0952 21 54 02 36.8 235.2 2.8 32.0 -38 5207 No stop 03 46 30 =1903+097 21 56 33 36.5 235.8 2.8 32.3 112 5246 03 44 01 03 46 30 J1913+0932 21 56 33 37.2 233.6 2.7 31.3 -38 5246 No stop 03 50 00 --- 22 00 03 36.8 234.5 2.8 31.7 172 5300 03 46 31 03 51 00 J1905+0952 22 01 03 35.9 237.0 2.9 32.8 21 5300 03 51 00 03 53 30 =1903+097 22 03 34 35.6 237.6 2.9 33.0 150 5338 03 51 01 03 53 30 GRS1915 22 03 34 37.7 235.9 2.8 32.4 -38 5338 No stop 03 57 00 --- 22 07 04 37.3 236.8 2.8 32.8 172 5392 03 53 31 03 57 00 J1905+0952 22 07 04 35.1 238.5 3.0 33.4 -38 5392 No stop 03 59 30 =1903+097 22 09 35 34.7 239.1 3.0 33.6 112 5431 03 57 01 03 59 30 GRS1915 22 09 35 36.9 237.5 2.9 33.1 -38 5431 No stop 04 03 00 --- 22 13 05 36.5 238.4 2.9 33.5 172 5485 03 59 31 04 03 40 J1905+0952 22 13 45 34.2 240.2 3.1 34.0 2 5485 04 03 40 04 05 30 =1903+097 22 15 36 33.9 240.6 3.1 34.2 110 5513 04 03 41 04 05 30 GRS1915 22 15 36 36.1 239.0 3.0 33.7 -38 5513 No stop 04 09 00 --- 22 19 06 35.6 239.9 3.0 34.1 172 5568 04 05 31 04 09 00 J1905+0952 22 19 06 33.4 241.5 3.2 34.5 -38 5568 No stop 04 11 30 =1903+097 22 21 37 33.1 242.1 3.2 34.8 112 5606 04 09 01 04 11 30 GRS1915 22 21 37 35.3 240.5 3.1 34.3 -38 5606 No stop 04 15 00 --- 22 25 07 34.8 241.4 3.1 34.6 172 5660 04 11 31 04 15 40 J1905+0952 22 25 47 32.5 243.1 3.3 35.1 1 5660 04 15 40 04 17 30 =1903+097 22 27 38 32.2 243.5 3.3 35.3 110 5689 04 15 41 04 17 30 GRS1915 22 27 38 34.5 242.0 3.2 34.9 -38 5689 No stop 04 21 00 --- 22 31 08 34.0 242.8 3.2 35.2 172 5743 04 17 31 04 21 00 J1905+0952 22 31 08 31.7 244.4 3.4 35.6 -39 5743 No stop 04 23 30 =1903+097 22 33 39 31.4 244.9 3.4 35.8 111 5781 04 21 01 04 23 30 GRS1915 22 33 39 33.6 243.4 3.3 35.4 -38 5781 No stop 04 27 00 --- 22 37 09 33.1 244.3 3.3 35.7 172 5836 04 23 31 04 27 40 J1905+0952 22 37 49 30.8 245.9 3.5 36.1 1 5836 04 27 40 04 29 30 =1903+097 22 39 40 30.5 246.3 3.5 36.2 110 5864 04 27 41 Schedule for EFLSBERG (Code Ef ) Page 11 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 04 29 30 GRS1915 22 39 40 32.8 244.9 3.4 35.9 -38 5864 No stop 04 33 00 --- 22 43 10 32.2 245.7 3.4 36.2 172 5918 04 29 31 04 33 00 J1905+0952 22 43 10 30.0 247.1 3.6 36.5 -39 5918 No stop 04 35 30 =1903+097 22 45 41 29.6 247.7 3.6 36.7 111 5957 04 33 01 04 35 30 GRS1915 22 45 41 31.9 246.3 3.5 36.4 -38 5957 No stop 04 39 00 --- 22 49 11 31.4 247.1 3.5 36.6 172 6011 04 35 31 04 39 40 J1905+0952 22 49 51 29.0 248.7 3.7 37.0 1 6011 04 39 40 04 41 30 =1903+097 22 51 42 28.7 249.1 3.8 37.1 110 6039 04 39 41 04 41 30 GRS1915 22 51 42 31.0 247.7 3.6 36.8 -38 6039 No stop 04 45 00 --- 22 55 12 30.5 248.5 3.6 37.0 172 6093 04 41 31 04 45 00 J1905+0952 22 55 12 28.2 249.9 3.8 37.3 -39 6093 No stop 04 47 30 =1903+097 22 57 43 27.8 250.4 3.9 37.4 111 6132 04 45 01 04 47 30 J1913+0932 22 57 43 28.7 248.5 3.7 36.9 -36 6132 No stop 04 51 00 --- 23 01 13 28.2 249.3 3.8 37.1 174 6186 04 47 31 04 52 00 J1905+0952 23 02 13 27.2 251.4 3.9 37.7 23 6186 04 52 00 04 54 30 =1903+097 23 04 44 26.8 252.0 4.0 37.9 150 6225 04 52 01 04 54 30 GRS1915 23 04 44 29.1 250.6 3.8 37.7 -38 6225 No stop 04 58 00 --- 23 08 14 28.5 251.4 3.9 37.9 172 6279 04 54 31 04 58 00 J1905+0952 23 08 14 26.2 252.7 4.0 38.0 -39 6279 No stop 05 00 30 =1903+097 23 10 45 25.9 253.3 4.1 38.2 111 6317 04 58 01 05 00 30 GRS1915 23 10 45 28.2 251.9 3.9 38.0 -38 6317 No stop 05 04 00 --- 23 14 15 27.6 252.7 4.0 38.2 172 6371 05 00 31 05 04 40 J1905+0952 23 14 55 25.2 254.2 4.1 38.4 1 6371 05 04 40 05 06 30 =1903+097 23 16 46 24.9 254.5 4.2 38.5 110 6400 05 04 41 05 06 30 GRS1915 23 16 46 27.2 253.3 4.0 38.3 -38 6400 No stop 05 10 00 --- 23 20 16 26.7 254.0 4.1 38.5 172 6454 05 06 31 05 10 00 J1905+0952 23 20 16 24.4 255.3 4.2 38.6 -39 6454 No stop 05 12 30 =1903+097 23 22 47 24.0 255.8 4.3 38.7 111 6492 05 10 01 05 12 30 GRS1915 23 22 47 26.3 254.5 4.1 38.6 -38 6492 No stop 05 16 00 --- 23 26 17 25.8 255.3 4.2 38.8 172 6547 05 12 31 Schedule for EFLSBERG (Code Ef ) Page 12 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 05 16 40 J1905+0952 23 26 57 23.4 256.7 4.3 38.9 1 6547 05 16 40 05 18 30 =1903+097 23 28 48 23.1 257.1 4.4 39.0 110 6575 05 16 41 05 18 30 J1913+0932 23 28 48 24.0 255.2 4.2 38.6 -36 6575 No stop 05 21 00 --- 23 31 18 23.7 255.8 4.3 38.7 114 6614 05 18 31 05 21 00 J1905+0952 23 31 18 22.7 257.6 4.4 39.1 -37 6614 No stop 05 23 30 =1903+097 23 33 48 22.3 258.1 4.5 39.2 113 6652 05 21 01 05 23 30 J2253+1608 23 33 48 54.9 196.3 0.6 10.7 -185 6652 No stop 05 30 00 =3C454.3 23 40 20 54.5 199.0 0.8 12.4 205 6753 05 23 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess221.C2048 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: ef6cm 6cm secondary focus receiver. This LO covers the whole band. ****** Only 256.00 of 512.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 4 Station: EFLSBERG Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A1 C3 A1 C3 A1 C3 A1 C3 A1 C3 A1 C3 A1 C3 A1 C3 The following frequency sets based on these setups were used. Frequency Set: 3 Setup file default. Used with PCAL = off LO sum= 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 3 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * GRS1915 19 12 49.958613 * 19 15 11.544821 19 16 12.613599 0.00 GRS1915+105 10 51 26.57111 * 10 56 44.62477 10 58 57.34646 0.00 From catalog imbedded in main SCHED input file. * J1913+0932 19 11 00.869981 * 19 13 24.025348 19 14 25.756814 0.00 09 27 34.81592 * 09 32 45.37648 09 34 55.17469 0.00 From catalog imbedded in main SCHED input file. 1758+388 17 58 44.703954 * 18 00 24.765363 18 01 08.766849 0.01 * J1800+3848 38 48 32.47350 * 38 48 30.69748 38 48 27.99045 0.01 J1800+38 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 5095 observations. 1903+097 19 03 17.231910 * 19 05 39.898972 19 06 41.444755 0.13 * J1905+0952 09 47 30.15815 * 09 52 08.40750 09 54 04.60661 0.22 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 104 observations. 3C454.3 22 51 29.519739 * 22 53 57.747939 22 55 00.676644 0.65 * J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 33.13978 0.73 2251+158 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J2253+16 GSFC 2016a X/S astro solution, 41272 observations. SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline GRS1915 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 3.908 526.698 J1913+0932 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 0.433 53.886 J1800+3848 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 0.167 23.790 J1905+0952 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 2.853 368.153 J2253+1608 sess221.C2048 1 2 3 4 5 6 8 9 10 11 12 15 0.108 8.729 EFFECT OF SOLAR CORONA The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) GRS1915 138.8 J1913+0932 140.2 J1800+3848 117.7 J1905+0952 140.9 J2253+1608 94.1 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg