COVER INFORMATION Station: MEDICINA (Code Mc ) Experiment: Probing the radio jets in GRS1915+105 in a new puzzling accretion state Exp. Code: EM144A Schedule Version: 2.50 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 MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 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: 230.49 230.49 230.49 230.49 294.49 294.49 294.49 294.49 358.49 358.49 358.49 358.49 422.49 422.49 422.49 422.49 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 12 30 00 J1800+3848 15 53 44 65.7 452.4 -2.1 -66.1 0 0 12 30 00 12 35 00 =1758+388 15 58 45 66.6 453.4 -2.0 -66.0 300 77 12 30 01 12 37 00 J1905+0952 16 00 45 37.2 476.3 -3.1 -40.5 56 77 12 37 00 12 39 30 =1903+097 16 03 16 37.6 476.9 -3.1 -40.2 150 116 12 37 01 12 39 30 GRS1915 16 03 16 36.9 473.8 -3.2 -41.7 -8 116 No stop 12 43 00 --- 16 06 46 37.4 474.6 -3.2 -41.3 202 170 12 39 31 12 43 00 J1905+0952 16 06 46 38.1 477.7 -3.0 -39.8 -8 170 No stop 12 45 30 =1903+097 16 09 17 38.5 478.3 -3.0 -39.6 142 209 12 43 01 12 45 30 GRS1915 16 09 17 37.8 475.2 -3.1 -41.1 -8 209 No stop 12 49 00 --- 16 12 47 38.4 476.0 -3.1 -40.7 202 263 12 45 31 12 49 40 J1905+0952 16 13 27 39.2 479.4 -2.9 -39.1 32 263 12 49 40 12 51 30 =1903+097 16 15 18 39.5 479.8 -2.9 -38.9 110 291 12 49 41 12 51 30 GRS1915 16 15 18 38.8 476.6 -3.0 -40.5 -8 291 No stop 12 55 00 --- 16 18 48 39.4 477.5 -3.0 -40.1 202 345 12 51 31 12 55 00 J1905+0952 16 18 48 40.0 480.7 -2.8 -38.5 -8 345 No stop 12 57 30 =1903+097 16 21 19 40.4 481.3 -2.8 -38.2 142 384 12 55 01 12 57 30 GRS1915 16 21 19 39.8 478.1 -2.9 -39.9 -8 384 No stop 13 01 00 --- 16 24 49 40.3 478.9 -2.9 -39.5 202 438 12 57 31 13 01 40 J1905+0952 16 25 29 41.0 482.4 -2.7 -37.7 32 438 13 01 40 13 03 30 =1903+097 16 27 19 41.3 482.9 -2.7 -37.4 110 466 13 01 41 13 03 30 GRS1915 16 27 19 40.7 479.6 -2.8 -39.2 -8 466 No stop 13 07 00 --- 16 30 50 41.2 480.4 -2.8 -38.8 202 520 13 03 31 13 07 00 J1905+0952 16 30 50 41.8 483.8 -2.6 -37.0 -8 520 No stop 13 09 30 =1903+097 16 33 20 42.2 484.5 -2.6 -36.6 142 559 13 07 01 13 09 30 GRS1915 16 33 20 41.6 481.1 -2.7 -38.5 -8 559 No stop 13 13 00 --- 16 36 51 42.2 482.0 -2.7 -38.0 202 613 13 09 31 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 13 13 40 J1905+0952 16 37 31 42.8 485.6 -2.5 -36.1 31 613 13 13 40 13 15 30 =1903+097 16 39 21 43.1 486.1 -2.5 -35.8 110 642 13 13 41 13 15 30 GRS1915 16 39 21 42.5 482.7 -2.6 -37.7 -8 642 No stop 13 19 00 --- 16 42 52 43.1 483.6 -2.6 -37.2 202 696 13 15 31 13 19 00 J1905+0952 16 42 52 43.6 487.1 -2.4 -35.3 -9 696 No stop 13 21 30 =1903+097 16 45 22 43.9 487.8 -2.4 -34.9 141 734 13 19 01 13 21 30 GRS1915 16 45 22 43.4 484.3 -2.5 -36.9 -9 734 No stop 13 25 00 --- 16 48 53 43.9 485.2 -2.5 -36.4 201 788 13 21 31 13 25 40 J1905+0952 16 49 33 44.5 488.9 -2.3 -34.3 31 788 13 25 40 13 27 30 =1903+097 16 51 23 44.8 489.5 -2.3 -34.0 110 817 13 25 41 13 27 30 J1913+0932 16 51 23 43.4 487.5 -2.4 -35.0 -7 817 No stop 13 30 00 --- 16 53 54 43.8 488.2 -2.3 -34.6 143 855 13 27 31 13 30 40 J1905+0952 16 54 34 45.2 490.4 -2.2 -33.5 33 855 13 30 40 13 32 40 =1903+097 16 56 34 45.5 491.0 -2.2 -33.1 120 886 13 30 41 13 32 40 GRS1915 16 56 34 45.0 487.4 -2.3 -35.3 -9 886 No stop 13 36 10 --- 17 00 05 45.5 488.4 -2.3 -34.7 201 940 13 32 41 13 36 10 J1905+0952 17 00 05 45.9 492.0 -2.1 -32.5 -9 940 No stop 13 38 40 =1903+097 17 02 35 46.3 492.8 -2.1 -32.1 141 979 13 36 11 13 38 40 GRS1915 17 02 35 45.9 489.1 -2.2 -34.3 -9 979 No stop 13 42 10 --- 17 06 06 46.4 490.1 -2.2 -33.7 201 1033 13 38 41 13 42 50 J1905+0952 17 06 46 46.8 494.0 -2.0 -31.4 31 1033 13 42 50 13 44 40 =1903+097 17 08 36 47.0 494.6 -2.0 -31.0 110 1061 13 42 51 13 44 40 GRS1915 17 08 36 46.7 490.9 -2.1 -33.3 -9 1061 No stop 13 48 10 --- 17 12 07 47.2 491.9 -2.1 -32.7 201 1116 13 44 41 13 48 10 J1905+0952 17 12 07 47.5 495.7 -1.9 -30.4 -9 1116 No stop 13 50 40 =1903+097 17 14 37 47.8 496.5 -1.9 -29.9 141 1154 13 48 11 13 50 40 GRS1915 17 14 37 47.5 492.7 -2.0 -32.3 -9 1154 No stop 13 54 10 --- 17 18 08 48.0 493.8 -2.0 -31.6 201 1208 13 50 41 13 54 50 J1905+0952 17 18 48 48.3 497.8 -1.8 -29.1 31 1208 13 54 50 13 56 40 =1903+097 17 20 38 48.5 498.4 -1.8 -28.7 110 1237 13 54 51 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 13 56 40 GRS1915 17 20 38 48.3 494.6 -1.9 -31.2 -9 1237 No stop 14 00 10 --- 17 24 09 48.7 495.7 -1.9 -30.5 201 1291 13 56 41 14 00 10 J1905+0952 17 24 09 48.9 499.6 -1.7 -28.0 -9 1291 No stop 14 02 40 =1903+097 17 26 39 49.2 500.4 -1.7 -27.5 141 1329 14 00 11 14 02 40 GRS1915 17 26 39 49.0 496.5 -1.8 -30.0 -9 1329 No stop 14 06 10 --- 17 30 10 49.5 497.6 -1.8 -29.3 201 1384 14 02 41 14 06 50 J1905+0952 17 30 50 49.7 501.8 -1.6 -26.6 31 1384 14 06 50 14 08 40 =1903+097 17 32 40 49.9 502.5 -1.6 -26.2 110 1412 14 06 51 14 08 40 GRS1915 17 32 40 49.8 498.5 -1.7 -28.8 -9 1412 No stop 14 12 10 --- 17 36 11 50.2 499.6 -1.7 -28.1 201 1466 14 08 41 14 12 10 J1905+0952 17 36 11 50.3 503.7 -1.5 -25.4 -9 1466 No stop 14 14 40 =1903+097 17 38 41 50.5 504.5 -1.5 -24.8 141 1505 14 12 11 14 14 40 GRS1915 17 38 41 50.5 500.5 -1.6 -27.5 -9 1505 No stop 14 18 10 --- 17 42 12 50.9 501.7 -1.6 -26.8 201 1559 14 14 41 14 18 50 J1905+0952 17 42 52 50.9 506.0 -1.4 -23.9 31 1559 14 18 50 14 20 40 =1903+097 17 44 42 51.1 506.7 -1.4 -23.4 110 1587 14 18 51 14 20 40 J1913+0932 17 44 42 50.1 504.2 -1.5 -25.1 -7 1587 No stop 14 23 10 --- 17 47 13 50.3 505.0 -1.5 -24.5 143 1626 14 20 41 14 23 50 J1905+0952 17 47 53 51.4 507.8 -1.3 -22.7 33 1626 14 23 50 14 25 50 =1903+097 17 49 53 51.6 508.6 -1.3 -22.2 120 1657 14 23 51 14 25 50 GRS1915 17 49 53 51.7 504.4 -1.4 -25.0 -9 1657 No stop 14 29 20 --- 17 53 24 52.0 505.7 -1.4 -24.2 201 1711 14 25 51 14 29 20 J1905+0952 17 53 24 51.9 509.9 -1.2 -21.3 -10 1711 No stop 14 31 50 =1903+097 17 55 54 52.2 510.8 -1.2 -20.7 140 1749 14 29 21 14 31 50 GRS1915 17 55 54 52.3 506.6 -1.3 -23.6 -9 1749 No stop 14 35 20 --- 17 59 25 52.6 507.9 -1.3 -22.7 201 1803 14 31 51 14 36 00 J1905+0952 18 00 05 52.5 512.4 -1.1 -19.6 30 1803 14 36 00 14 37 50 =1903+097 18 01 55 52.7 513.1 -1.1 -19.1 110 1832 14 36 01 14 37 50 GRS1915 18 01 55 52.9 508.8 -1.2 -22.1 -10 1832 No stop 14 41 20 --- 18 05 26 53.2 510.2 -1.2 -21.2 200 1886 14 37 51 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 14 41 20 J1905+0952 18 05 26 52.9 514.4 -1.0 -18.2 -10 1886 No stop 14 43 50 =1903+097 18 07 56 53.1 515.4 -1.0 -17.5 140 1925 14 41 21 14 43 50 GRS1915 18 07 56 53.4 511.1 -1.1 -20.5 -10 1925 No stop 14 47 20 --- 18 11 27 53.7 512.5 -1.1 -19.6 200 1979 14 43 51 14 48 00 J1905+0952 18 12 07 53.4 517.1 -0.9 -16.4 30 1979 14 48 00 14 49 50 =1903+097 18 13 57 53.6 517.8 -0.9 -15.9 110 2007 14 48 01 14 49 50 GRS1915 18 13 57 53.9 513.5 -1.0 -18.9 -10 2007 No stop 14 53 20 --- 18 17 28 54.2 514.9 -1.0 -18.0 200 2061 14 49 51 14 53 20 J1905+0952 18 17 28 53.8 519.2 -0.8 -14.9 -10 2061 No stop 14 55 50 =1903+097 18 19 58 53.9 520.2 -0.8 -14.2 140 2100 14 53 21 14 55 50 GRS1915 18 19 58 54.4 515.9 -0.9 -17.3 -10 2100 No stop 14 59 20 --- 18 23 29 54.6 517.3 -0.9 -16.3 200 2154 14 55 51 15 00 00 J1905+0952 18 24 09 54.2 521.9 -0.7 -13.0 30 2154 15 00 00 15 01 50 =1903+097 18 25 59 54.3 522.7 -0.7 -12.4 110 2182 15 00 01 15 01 50 GRS1915 18 25 59 54.8 518.3 -0.8 -15.6 -10 2182 No stop 15 05 20 --- 18 29 30 55.0 519.8 -0.8 -14.6 200 2236 15 01 51 15 05 20 J1905+0952 18 29 30 54.5 524.1 -0.6 -11.4 -10 2236 No stop 15 07 50 =1903+097 18 32 00 54.6 525.2 -0.6 -10.7 140 2275 15 05 21 15 07 50 GRS1915 18 32 00 55.1 520.8 -0.7 -13.8 -10 2275 No stop 15 11 20 --- 18 35 30 55.3 522.3 -0.7 -12.8 200 2329 15 07 51 15 12 00 J1905+0952 18 36 11 54.8 526.9 -0.5 -9.4 30 2329 15 12 00 15 13 50 =1903+097 18 38 01 54.8 527.7 -0.5 -8.9 110 2357 15 12 01 15 13 50 J1913+0932 18 38 01 54.2 524.6 -0.6 -11.1 -8 2357 No stop 15 16 20 --- 18 40 31 54.3 525.6 -0.6 -10.4 142 2396 15 13 51 15 17 00 J1905+0952 18 41 11 54.9 529.0 -0.4 -7.9 32 2396 15 17 00 15 19 00 =1903+097 18 43 12 55.0 529.9 -0.4 -7.3 120 2427 15 17 01 15 19 00 GRS1915 18 43 12 55.7 525.5 -0.5 -10.5 -10 2427 No stop 15 22 30 --- 18 46 42 55.9 527.0 -0.5 -9.4 200 2481 15 19 01 15 22 30 J1905+0952 18 46 42 55.1 531.4 -0.3 -6.2 -10 2481 No stop 15 25 00 =1903+097 18 49 13 55.2 532.5 -0.3 -5.4 140 2520 15 22 31 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 15 25 00 GRS1915 18 49 13 56.0 528.1 -0.4 -8.6 -10 2520 No stop 15 28 30 --- 18 52 43 56.1 529.7 -0.4 -7.5 200 2574 15 25 01 15 29 10 J1905+0952 18 53 23 55.3 534.3 -0.2 -4.1 30 2574 15 29 10 15 31 00 =1903+097 18 55 14 55.3 535.1 -0.2 -3.6 110 2602 15 29 11 15 31 00 GRS1915 18 55 14 56.2 530.8 -0.3 -6.7 -10 2602 No stop 15 34 30 --- 18 58 44 56.3 532.3 -0.3 -5.6 200 2656 15 31 01 15 34 30 J1905+0952 18 58 44 55.3 536.6 -0.1 -2.5 -10 2656 No stop 15 37 00 =1903+097 19 01 15 55.4 537.7 -0.1 -1.7 140 2695 15 34 31 15 37 00 GRS1915 19 01 15 56.3 533.4 -0.2 -4.8 -10 2695 No stop 15 40 30 --- 19 04 45 56.4 534.9 -0.2 -3.7 200 2749 15 37 01 15 41 10 J1905+0952 19 05 25 55.4 539.5 -0.0 -0.4 30 2749 15 41 10 15 43 00 =1903+097 19 07 16 55.4 540.3 0.0 0.2 110 2777 15 41 11 15 43 00 GRS1915 19 07 16 56.4 536.1 -0.1 -2.9 -9 2777 No stop 15 46 30 --- 19 10 46 56.4 537.6 -0.1 -1.7 201 2831 15 43 01 15 46 30 J1905+0952 19 10 46 55.4 541.8 0.1 1.3 -10 2831 No stop 15 49 00 =1903+097 19 13 17 55.4 542.9 0.1 2.1 140 2870 15 46 31 15 49 00 GRS1915 19 13 17 56.5 538.7 -0.0 -0.9 -9 2870 No stop 15 52 30 --- 19 16 47 56.5 540.3 0.0 0.2 201 2924 15 49 01 15 53 10 J1905+0952 19 17 27 55.3 544.7 0.2 3.4 31 2924 15 53 10 15 55 00 =1903+097 19 19 18 55.3 545.5 0.2 4.0 110 2953 15 53 11 15 55 00 GRS1915 19 19 18 56.5 541.4 0.1 1.0 -9 2953 No stop 15 58 30 --- 19 22 48 56.4 543.0 0.1 2.1 201 3007 15 55 01 15 58 30 J1905+0952 19 22 48 55.2 547.0 0.3 5.1 -9 3007 No stop 16 01 00 =1903+097 19 25 19 55.1 548.1 0.3 5.8 141 3045 15 58 31 16 01 00 GRS1915 19 25 19 56.4 544.1 0.2 3.0 -9 3045 No stop 16 04 30 --- 19 28 49 56.4 545.6 0.2 4.1 201 3099 16 01 01 16 05 10 J1905+0952 19 29 29 55.0 549.9 0.4 7.1 31 3099 16 05 10 16 07 00 =1903+097 19 31 20 55.0 550.6 0.4 7.7 110 3128 16 05 11 16 07 00 J1913+0932 19 31 20 54.9 547.3 0.3 5.3 -8 3128 No stop 16 09 30 --- 19 33 50 54.8 548.3 0.3 6.0 142 3166 16 07 01 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 16 10 00 J1800+3848 19 34 20 71.7 619.9 1.6 64.3 -70 3166 16 10 00 16 15 00 =1758+388 19 39 21 70.9 621.2 1.6 64.7 230 3244 16 10 01 16 15 40 J1905+0952 19 40 01 54.6 554.3 0.6 10.3 -53 3244 16 15 40 16 17 40 =1903+097 19 42 01 54.5 555.1 0.6 10.9 67 3275 16 15 41 16 17 40 GRS1915 19 42 01 56.0 551.4 0.4 8.3 -9 3275 No stop 16 21 10 --- 19 45 32 55.9 552.9 0.5 9.4 201 3329 16 17 41 16 21 10 J1905+0952 19 45 32 54.4 556.6 0.6 11.9 -9 3329 No stop 16 23 40 =1903+097 19 48 02 54.2 557.6 0.7 12.7 141 3367 16 21 11 16 23 40 GRS1915 19 48 02 55.8 554.0 0.5 10.1 -9 3367 No stop 16 27 10 --- 19 51 33 55.6 555.5 0.6 11.2 201 3421 16 23 41 16 27 50 J1905+0952 19 52 13 54.0 559.3 0.8 13.9 31 3421 16 27 50 16 29 40 =1903+097 19 54 03 53.9 560.1 0.8 14.4 110 3450 16 27 51 16 29 40 GRS1915 19 54 03 55.5 556.6 0.6 12.0 -9 3450 No stop 16 33 10 --- 19 57 34 55.3 558.1 0.7 13.0 201 3504 16 29 41 16 33 10 J1905+0952 19 57 34 53.7 561.5 0.8 15.4 -9 3504 No stop 16 35 40 =1903+097 20 00 04 53.5 562.5 0.9 16.1 141 3543 16 33 11 16 35 40 GRS1915 20 00 04 55.2 559.1 0.7 13.8 -8 3543 No stop 16 39 10 --- 20 03 35 54.9 560.6 0.8 14.8 202 3597 16 35 41 16 39 50 J1905+0952 20 04 15 53.2 564.2 1.0 17.2 32 3597 16 39 50 16 41 40 =1903+097 20 06 05 53.1 564.9 1.0 17.7 110 3625 16 39 51 16 41 40 GRS1915 20 06 05 54.8 561.6 0.8 15.5 -8 3625 No stop 16 45 10 --- 20 09 36 54.5 563.0 0.9 16.5 202 3679 16 41 41 16 45 10 J1905+0952 20 09 36 52.8 566.2 1.0 18.7 -8 3679 No stop 16 47 40 =1903+097 20 12 06 52.6 567.2 1.1 19.3 142 3718 16 45 11 16 47 40 GRS1915 20 12 06 54.4 564.0 0.9 17.2 -8 3718 No stop 16 51 10 --- 20 15 37 54.1 565.4 1.0 18.2 202 3772 16 47 41 16 51 50 J1905+0952 20 16 17 52.3 568.8 1.2 20.4 32 3772 16 51 50 16 53 40 =1903+097 20 18 07 52.1 569.5 1.2 20.9 110 3800 16 51 51 16 53 40 GRS1915 20 18 07 53.9 566.4 1.0 18.9 -8 3800 No stop 16 57 10 --- 20 21 38 53.6 567.8 1.1 19.8 202 3854 16 53 41 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 16 57 10 J1905+0952 20 21 38 51.8 570.8 1.3 21.7 -8 3854 No stop 16 59 40 =1903+097 20 24 08 51.6 571.7 1.3 22.4 142 3893 16 57 11 16 59 40 GRS1915 20 24 08 53.4 568.8 1.1 20.5 -8 3893 No stop 17 03 10 --- 20 27 39 53.1 570.1 1.2 21.4 202 3947 16 59 41 17 03 50 J1905+0952 20 28 19 51.2 573.2 1.4 23.4 32 3947 17 03 50 17 05 40 =1903+097 20 30 09 51.0 573.9 1.4 23.8 110 3975 17 03 51 17 05 40 J1913+0932 20 30 09 51.4 570.9 1.3 21.8 -8 3975 No stop 17 08 10 --- 20 32 40 51.2 571.8 1.3 22.4 142 4014 17 05 41 17 08 50 J1905+0952 20 33 20 50.7 575.0 1.4 24.5 32 4014 17 08 50 17 10 50 =1903+097 20 35 20 50.4 575.7 1.5 25.0 120 4045 17 08 51 17 10 50 GRS1915 20 35 20 52.4 573.0 1.3 23.3 -8 4045 No stop 17 14 20 --- 20 38 51 52.0 574.3 1.4 24.2 202 4099 17 10 51 17 14 20 J1905+0952 20 38 51 50.1 576.9 1.5 25.8 -9 4099 No stop 17 16 50 =1903+097 20 41 21 49.8 577.8 1.6 26.3 141 4138 17 14 21 17 16 50 GRS1915 20 41 21 51.8 575.2 1.4 24.8 -9 4138 No stop 17 20 20 --- 20 44 52 51.4 576.5 1.5 25.6 201 4192 17 16 51 17 21 00 J1905+0952 20 45 32 49.3 579.2 1.6 27.2 31 4192 17 21 00 17 22 50 =1903+097 20 47 22 49.1 579.8 1.7 27.6 110 4220 17 21 01 17 22 50 GRS1915 20 47 22 51.2 577.3 1.5 26.1 -9 4220 No stop 17 26 20 --- 20 50 53 50.8 578.6 1.6 26.9 201 4274 17 22 51 17 26 20 J1905+0952 20 50 53 48.7 581.0 1.7 28.4 -9 4274 No stop 17 28 50 =1903+097 20 53 23 48.4 581.8 1.8 28.9 141 4313 17 26 21 17 28 50 GRS1915 20 53 23 50.5 579.4 1.6 27.5 -9 4313 No stop 17 32 20 --- 20 56 54 50.1 580.6 1.7 28.2 201 4367 17 28 51 17 33 00 J1905+0952 20 57 34 47.9 583.2 1.8 29.7 31 4367 17 33 00 17 34 50 =1903+097 20 59 24 47.7 583.8 1.9 30.0 110 4395 17 33 01 17 34 50 GRS1915 20 59 24 49.8 581.5 1.7 28.7 -9 4395 No stop 17 38 20 --- 21 02 55 49.4 582.6 1.8 29.5 201 4449 17 34 51 17 38 20 J1905+0952 21 02 55 47.3 584.9 1.9 30.7 -9 4449 No stop 17 40 50 =1903+097 21 05 25 46.9 585.6 2.0 31.2 141 4488 17 38 21 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 17 40 50 GRS1915 21 05 25 49.1 583.4 1.8 30.0 -9 4488 No stop 17 44 20 --- 21 08 56 48.6 584.6 1.9 30.6 201 4542 17 40 51 17 45 00 J1905+0952 21 09 36 46.4 586.9 2.0 31.9 31 4542 17 45 00 17 46 50 =1903+097 21 11 26 46.2 587.5 2.1 32.2 110 4571 17 45 01 17 46 50 GRS1915 21 11 26 48.3 585.4 1.9 31.1 -9 4571 No stop 17 50 20 --- 21 14 57 47.9 586.5 2.0 31.8 201 4625 17 46 51 17 50 20 J1905+0952 21 14 57 45.7 588.5 2.1 32.8 -9 4625 No stop 17 52 50 =1903+097 21 17 27 45.4 589.3 2.2 33.3 141 4663 17 50 21 17 52 50 GRS1915 21 17 27 47.5 587.2 2.0 32.2 -9 4663 No stop 17 56 20 --- 21 20 58 47.1 588.3 2.1 32.8 201 4717 17 52 51 17 57 00 J1905+0952 21 21 38 44.8 590.5 2.3 33.9 31 4717 17 57 00 17 58 50 =1903+097 21 23 28 44.5 591.0 2.3 34.2 110 4746 17 57 01 17 58 50 J1913+0932 21 23 28 45.3 588.5 2.2 32.8 -7 4746 No stop 18 01 20 --- 21 25 58 45.0 589.2 2.2 33.2 143 4784 17 58 51 18 02 00 J1905+0952 21 26 39 44.1 591.9 2.3 34.7 33 4784 18 02 00 18 04 00 =1903+097 21 28 39 43.8 592.5 2.4 35.0 120 4815 18 02 01 18 04 00 GRS1915 21 28 39 46.0 590.6 2.2 34.1 -9 4815 No stop 18 07 30 --- 21 32 09 45.6 591.6 2.3 34.7 201 4869 18 04 01 18 07 30 J1905+0952 21 32 09 43.3 593.4 2.4 35.5 -9 4869 No stop 18 10 00 =1903+097 21 34 40 43.0 594.1 2.5 35.9 141 4908 18 07 31 18 10 00 GRS1915 21 34 40 45.2 592.3 2.3 35.1 -9 4908 No stop 18 13 30 --- 21 38 10 44.7 593.3 2.4 35.6 201 4962 18 10 01 18 14 10 J1905+0952 21 38 51 42.4 595.2 2.5 36.5 31 4962 18 14 10 18 16 10 =1903+097 21 40 51 42.1 595.8 2.6 36.8 120 4993 18 14 11 18 16 10 GRS1915 21 40 51 44.3 594.1 2.4 36.0 -9 4993 No stop 18 19 40 --- 21 44 21 43.8 595.0 2.5 36.5 201 5047 18 16 11 18 19 40 J1905+0952 21 44 21 41.5 596.7 2.6 37.2 -9 5047 No stop 18 22 10 =1903+097 21 46 52 41.2 597.4 2.7 37.6 141 5086 18 19 41 18 22 10 GRS1915 21 46 52 43.4 595.7 2.5 36.9 -9 5086 No stop 18 25 40 --- 21 50 22 42.9 596.7 2.6 37.4 201 5140 18 22 11 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 18 26 20 J1905+0952 21 51 03 40.5 598.4 2.7 38.1 31 5140 18 26 20 18 28 20 =1903+097 21 53 03 40.2 598.9 2.8 38.3 120 5171 18 26 21 18 28 20 GRS1915 21 53 03 42.5 597.4 2.6 37.7 -9 5171 No stop 18 31 50 --- 21 56 33 42.0 598.3 2.7 38.2 201 5225 18 28 21 18 31 50 J1905+0952 21 56 33 39.7 599.8 2.8 38.7 -9 5225 No stop 18 34 20 =1903+097 21 59 04 39.3 600.5 2.9 39.0 141 5264 18 31 51 18 34 20 GRS1915 21 59 04 41.6 598.9 2.7 38.5 -9 5264 No stop 18 37 50 --- 22 02 34 41.1 599.8 2.8 38.9 201 5318 18 34 21 18 38 30 J1905+0952 22 03 15 38.6 601.5 2.9 39.5 31 5318 18 38 30 18 40 30 =1903+097 22 05 15 38.3 602.0 3.0 39.7 120 5349 18 38 31 18 40 30 GRS1915 22 05 15 40.7 600.5 2.8 39.2 -9 5349 No stop 18 44 00 --- 22 08 45 40.1 601.4 2.9 39.6 201 5403 18 40 31 18 44 00 J1905+0952 22 08 45 37.8 602.8 3.0 40.1 -9 5403 No stop 18 46 30 =1903+097 22 11 16 37.4 603.4 3.1 40.3 141 5441 18 44 01 18 46 30 GRS1915 22 11 16 39.7 602.0 2.9 39.9 -9 5441 No stop 18 50 00 --- 22 14 46 39.2 602.9 3.0 40.3 201 5495 18 46 31 18 50 40 J1905+0952 22 15 27 36.7 604.4 3.1 40.7 31 5495 18 50 40 18 52 40 =1903+097 22 17 27 36.4 604.8 3.2 40.9 120 5526 18 50 41 18 52 40 J1913+0932 22 17 27 37.4 602.8 3.1 40.0 -7 5526 No stop 18 55 10 --- 22 19 57 37.0 603.4 3.1 40.3 143 5565 18 52 41 18 55 50 J1905+0952 22 20 37 35.9 605.6 3.2 41.2 33 5565 18 55 50 18 57 50 =1903+097 22 22 38 35.5 606.0 3.3 41.4 120 5596 18 55 51 18 57 50 GRS1915 22 22 38 37.9 604.7 3.1 41.1 -9 5596 No stop 19 01 20 --- 22 26 08 37.3 605.5 3.2 41.4 201 5650 18 57 51 19 01 20 J1905+0952 22 26 08 35.0 606.8 3.3 41.7 -9 5650 No stop 19 03 50 =1903+097 22 28 39 34.6 607.4 3.4 41.9 141 5689 19 01 21 19 03 50 GRS1915 22 28 39 36.9 606.1 3.2 41.6 -9 5689 No stop 19 07 20 --- 22 32 09 36.4 606.9 3.3 41.9 201 5743 19 03 51 19 08 00 J1905+0952 22 32 49 33.9 608.3 3.4 42.3 31 5743 19 08 00 19 10 00 =1903+097 22 34 50 33.5 608.7 3.5 42.4 120 5774 19 08 01 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 19 10 00 GRS1915 22 34 50 35.9 607.5 3.3 42.2 -9 5774 No stop 19 13 30 --- 22 38 20 35.3 608.3 3.4 42.4 201 5828 19 10 01 19 13 30 J1905+0952 22 38 20 33.0 609.5 3.5 42.7 -9 5828 No stop 19 16 00 =1903+097 22 40 51 32.5 610.0 3.6 42.9 141 5866 19 13 31 19 16 00 GRS1915 22 40 51 34.9 608.9 3.4 42.6 -9 5866 No stop 19 19 30 --- 22 44 21 34.3 609.6 3.5 42.9 201 5921 19 16 01 19 20 10 J1905+0952 22 45 01 31.8 610.9 3.6 43.2 31 5921 19 20 10 19 22 10 =1903+097 22 47 02 31.5 611.4 3.7 43.3 120 5951 19 20 11 19 22 10 GRS1915 22 47 02 33.9 610.2 3.5 43.1 -9 5951 No stop 19 25 40 --- 22 50 32 33.3 611.0 3.6 43.4 201 6006 19 22 11 19 25 40 J1905+0952 22 50 32 30.9 612.1 3.7 43.5 -9 6006 No stop 19 28 10 =1903+097 22 53 03 30.5 612.6 3.8 43.7 141 6044 19 25 41 19 28 10 GRS1915 22 53 03 32.9 611.5 3.6 43.5 -9 6044 No stop 19 31 40 --- 22 56 33 32.3 612.2 3.7 43.8 201 6098 19 28 11 19 32 20 J1905+0952 22 57 13 29.8 613.5 3.8 43.9 31 6098 19 32 20 19 34 20 =1903+097 22 59 14 29.4 613.9 3.9 44.1 120 6129 19 32 21 19 34 20 J1913+0932 22 59 14 30.5 612.0 3.7 43.5 -7 6129 No stop 19 36 50 --- 23 01 44 30.1 612.6 3.8 43.6 143 6168 19 34 21 19 37 30 J1905+0952 23 02 24 28.9 614.5 3.9 44.2 33 6168 19 37 30 19 39 30 =1903+097 23 04 25 28.5 614.9 4.0 44.3 120 6199 19 37 31 19 39 30 GRS1915 23 04 25 30.9 613.9 3.8 44.2 -9 6199 No stop 19 43 00 --- 23 07 55 30.3 614.6 3.9 44.4 201 6253 19 39 31 19 43 00 J1905+0952 23 07 55 27.9 615.6 4.0 44.5 -9 6253 No stop 19 45 30 =1903+097 23 10 26 27.5 616.1 4.1 44.6 141 6292 19 43 01 19 45 30 GRS1915 23 10 26 29.9 615.1 3.9 44.6 -9 6292 No stop 19 49 00 --- 23 13 56 29.3 615.8 4.0 44.8 201 6346 19 45 31 19 49 40 J1905+0952 23 14 36 26.8 616.9 4.1 44.8 31 6346 19 49 40 19 51 40 =1903+097 23 16 37 26.4 617.3 4.2 44.9 120 6377 19 49 41 19 51 40 GRS1915 23 16 37 28.8 616.3 4.0 44.9 -9 6377 No stop 19 55 10 --- 23 20 07 28.2 617.0 4.1 45.1 201 6431 19 51 41 Schedule for MEDICINA (Code Mc ) 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 30 Oct 2020 Day 304 --- 19 55 10 J1905+0952 23 20 07 25.8 618.0 4.2 45.1 -9 6431 No stop 19 57 40 =1903+097 23 22 38 25.4 618.5 4.3 45.2 141 6469 19 55 11 19 57 40 GRS1915 23 22 38 27.8 617.5 4.1 45.2 -9 6469 No stop 20 01 10 --- 23 26 08 27.2 618.2 4.2 45.3 201 6523 19 57 41 20 01 50 J1905+0952 23 26 48 24.6 619.3 4.3 45.3 30 6523 20 01 50 20 03 50 =1903+097 23 28 49 24.3 619.7 4.4 45.4 120 6554 20 01 51 20 03 50 GRS1915 23 28 49 26.7 618.7 4.2 45.4 -9 6554 No stop 20 07 20 --- 23 32 19 26.1 619.4 4.3 45.6 201 6608 20 03 51 20 07 20 J1905+0952 23 32 19 23.7 620.3 4.4 45.5 -10 6608 No stop 20 09 50 =1903+097 23 34 50 23.2 620.8 4.5 45.6 140 6647 20 07 21 20 09 50 GRS1915 23 34 50 25.7 619.9 4.3 45.6 -9 6647 No stop 20 13 20 --- 23 38 20 25.0 620.5 4.4 45.8 201 6701 20 09 51 20 14 00 J1905+0952 23 39 00 22.5 621.6 4.5 45.7 30 6701 20 14 00 20 16 00 =1903+097 23 41 01 22.1 622.0 4.6 45.8 120 6732 20 14 01 20 16 00 J1913+0932 23 41 01 23.3 620.3 4.4 45.5 -7 6732 No stop 20 18 30 --- 23 43 31 22.8 620.7 4.5 45.5 143 6771 20 16 01 20 19 10 J1905+0952 23 44 11 21.6 622.6 4.6 45.9 33 6771 20 19 10 20 22 40 =1903+097 23 47 42 21.0 623.2 4.7 45.9 210 6825 20 19 11 20 24 00 J2253+1608 23 49 02 59.5 566.2 0.9 19.2 -2 6825 20 24 00 20 30 00 =3C454.3 23 55 03 59.0 568.9 1.0 21.0 358 6918 20 24 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess320.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: 9 Station: MEDICINA 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= 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 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 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 4 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= 230.49 230.49 230.49 230.49 294.49 294.49 294.49 294.49 358.49 358.49 358.49 358.49 422.49 422.49 422.49 422.49 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: 4 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 08.946282 0.00 GRS1915+105 10 51 26.57111 * 10 56 44.62477 10 59 05.89093 0.00 From catalog imbedded in main SCHED input file. * J1913+0932 19 11 00.869981 * 19 13 24.025348 19 14 22.061653 0.00 09 27 34.81592 * 09 32 45.37648 09 35 03.19161 0.00 From catalog imbedded in main SCHED input file. 1758+388 17 58 44.703954 * 18 00 24.765363 18 01 04.600553 0.01 * J1800+3848 38 48 32.47350 * 38 48 30.69748 38 48 44.84096 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 37.696026 0.13 * J1905+0952 09 47 30.15815 * 09 52 08.40750 09 54 13.05426 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 59.130379 0.65 * J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 37.30815 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 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 3.967 475.462 J1913+0932 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 0.375 40.584 J1800+3848 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 0.167 21.144 J1905+0952 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 2.850 343.015 J2253+1608 sess320.C2048 1 2 3 4 5 7 8 9 10 11 14 0.100 9.530 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 77.2 J1913+0932 76.4 J1800+3848 73.6 J1905+0952 74.7 J2253+1608 130.3 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