COVER INFORMATION Station: MEDICINA (Code Mc ) 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 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 5 Mar 2021 Day 64 --- 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 04 00 00 J1800+3848 15 39 06 63.1 449.8 -2.4 -66.2 0 0 04 00 00 04 05 00 =1758+388 15 44 07 64.0 450.6 -2.3 -66.2 300 77 04 00 01 04 07 00 J1905+0952 15 46 07 34.8 473.0 -3.3 -41.8 57 77 04 07 00 04 09 30 =1903+097 15 48 38 35.2 473.5 -3.3 -41.6 150 116 04 07 01 04 09 30 GRS1915 15 48 38 34.4 470.5 -3.5 -42.9 -8 116 No stop 04 13 00 --- 15 52 08 35.0 471.3 -3.4 -42.6 202 170 04 09 31 04 13 00 J1905+0952 15 52 08 35.8 474.3 -3.2 -41.3 -8 170 No stop 04 15 30 =1903+097 15 54 39 36.2 474.9 -3.2 -41.0 142 209 04 13 01 04 15 30 GRS1915 15 54 39 35.4 471.8 -3.4 -42.4 -8 209 No stop 04 19 00 --- 15 58 09 36.0 472.6 -3.3 -42.1 202 263 04 15 31 04 19 40 J1905+0952 15 58 49 36.9 475.9 -3.1 -40.6 32 263 04 19 40 04 21 30 =1903+097 16 00 40 37.2 476.3 -3.1 -40.5 110 291 04 19 41 04 21 30 GRS1915 16 00 40 36.4 473.2 -3.3 -41.9 -8 291 No stop 04 25 00 --- 16 04 10 37.0 474.0 -3.2 -41.6 202 345 04 21 31 04 25 00 J1905+0952 16 04 10 37.7 477.1 -3.0 -40.1 -8 345 No stop 04 27 30 =1903+097 16 06 41 38.1 477.7 -3.0 -39.8 142 384 04 25 01 04 27 30 GRS1915 16 06 41 37.4 474.6 -3.2 -41.3 -8 384 No stop 04 31 00 --- 16 10 11 38.0 475.4 -3.1 -41.0 202 438 04 27 31 04 31 40 J1905+0952 16 10 51 38.8 478.7 -2.9 -39.4 32 438 04 31 40 04 33 30 =1903+097 16 12 42 39.1 479.2 -2.9 -39.2 110 466 04 31 41 04 33 30 GRS1915 16 12 42 38.4 476.0 -3.1 -40.8 -8 466 No stop 04 37 00 --- 16 16 12 38.9 476.8 -3.0 -40.4 202 520 04 33 31 04 37 00 J1905+0952 16 16 12 39.6 480.0 -2.8 -38.8 -8 520 No stop 04 39 30 =1903+097 16 18 43 40.0 480.7 -2.8 -38.5 142 559 04 37 01 04 39 30 GRS1915 16 18 43 39.3 477.4 -3.0 -40.1 -8 559 No stop 04 43 00 --- 16 22 13 39.9 478.3 -2.9 -39.8 202 613 04 39 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 5 Mar 2021 Day 64 --- 04 43 40 J1905+0952 16 22 53 40.6 481.7 -2.7 -38.0 32 613 04 43 40 04 45 30 =1903+097 16 24 44 40.9 482.2 -2.7 -37.8 110 642 04 43 41 04 45 30 GRS1915 16 24 44 40.3 478.9 -2.9 -39.5 -8 642 No stop 04 49 00 --- 16 28 14 40.8 479.8 -2.8 -39.1 202 696 04 45 31 04 49 00 J1905+0952 16 28 14 41.4 483.1 -2.6 -37.3 -8 696 No stop 04 51 30 =1903+097 16 30 45 41.8 483.8 -2.6 -37.0 142 734 04 49 01 04 51 30 GRS1915 16 30 45 41.2 480.4 -2.8 -38.8 -8 734 No stop 04 55 00 --- 16 34 15 41.8 481.3 -2.7 -38.3 202 788 04 51 31 04 55 40 J1905+0952 16 34 55 42.4 484.9 -2.5 -36.4 32 788 04 55 40 04 57 30 =1903+097 16 36 46 42.7 485.4 -2.5 -36.2 110 817 04 55 41 04 57 30 J1913+0932 16 36 46 41.3 483.6 -2.6 -37.0 -7 817 No stop 05 00 00 --- 16 39 16 41.7 484.2 -2.6 -36.7 143 855 04 57 31 05 00 40 J1905+0952 16 39 56 43.1 486.2 -2.4 -35.7 33 855 05 00 40 05 02 40 =1903+097 16 41 56 43.4 486.8 -2.4 -35.4 120 886 05 00 41 05 02 40 GRS1915 16 41 56 42.9 483.3 -2.6 -37.4 -8 886 No stop 05 06 10 --- 16 45 27 43.4 484.3 -2.5 -36.9 202 940 05 02 41 05 06 10 J1905+0952 16 45 27 43.9 487.8 -2.4 -34.9 -9 940 No stop 05 08 40 =1903+097 16 47 57 44.3 488.5 -2.3 -34.5 141 979 05 06 11 05 08 40 GRS1915 16 47 57 43.8 485.0 -2.5 -36.5 -9 979 No stop 05 12 10 --- 16 51 28 44.3 485.9 -2.4 -36.0 201 1033 05 08 41 05 12 50 J1905+0952 16 52 08 44.9 489.7 -2.2 -33.9 31 1033 05 12 50 05 14 40 =1903+097 16 53 58 45.1 490.2 -2.2 -33.6 110 1061 05 12 51 05 14 40 GRS1915 16 53 58 44.7 486.6 -2.4 -35.7 -9 1061 No stop 05 18 10 --- 16 57 29 45.2 487.6 -2.3 -35.1 201 1116 05 14 41 05 18 10 J1905+0952 16 57 29 45.6 491.2 -2.2 -33.0 -9 1116 No stop 05 20 40 =1903+097 16 59 59 45.9 492.0 -2.1 -32.5 141 1154 05 18 11 05 20 40 GRS1915 16 59 59 45.5 488.3 -2.3 -34.7 -9 1154 No stop 05 24 10 --- 17 03 30 46.0 489.4 -2.2 -34.2 201 1208 05 20 41 05 24 50 J1905+0952 17 04 10 46.5 493.2 -2.0 -31.8 31 1208 05 24 50 05 26 40 =1903+097 17 06 00 46.7 493.8 -2.0 -31.5 110 1237 05 24 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 5 Mar 2021 Day 64 --- 05 26 40 GRS1915 17 06 00 46.4 490.1 -2.2 -33.8 -9 1237 No stop 05 30 10 --- 17 09 31 46.8 491.1 -2.1 -33.2 201 1291 05 26 41 05 30 10 J1905+0952 17 09 31 47.2 494.9 -2.0 -30.9 -9 1291 No stop 05 32 40 =1903+097 17 12 01 47.5 495.7 -1.9 -30.4 141 1329 05 30 11 05 32 40 GRS1915 17 12 01 47.2 491.9 -2.1 -32.7 -9 1329 No stop 05 36 10 --- 17 15 32 47.6 493.0 -2.0 -32.1 201 1384 05 32 41 05 36 50 J1905+0952 17 16 12 48.0 497.0 -1.8 -29.6 31 1384 05 36 50 05 38 40 =1903+097 17 18 02 48.2 497.6 -1.8 -29.2 110 1412 05 36 51 05 38 40 GRS1915 17 18 02 48.0 493.7 -2.0 -31.6 -9 1412 No stop 05 42 10 --- 17 21 33 48.4 494.8 -1.9 -31.0 201 1466 05 38 41 05 42 10 J1905+0952 17 21 33 48.6 498.7 -1.8 -28.5 -9 1466 No stop 05 44 40 =1903+097 17 24 03 48.9 499.5 -1.7 -28.0 141 1505 05 42 11 05 44 40 GRS1915 17 24 03 48.7 495.6 -1.9 -30.5 -9 1505 No stop 05 48 10 --- 17 27 34 49.1 496.8 -1.8 -29.8 201 1559 05 44 41 05 48 50 J1905+0952 17 28 14 49.4 500.9 -1.6 -27.1 31 1559 05 48 50 05 50 40 =1903+097 17 30 04 49.6 501.6 -1.6 -26.7 110 1587 05 48 51 05 50 40 J1913+0932 17 30 04 48.4 499.2 -1.7 -28.2 -7 1587 No stop 05 53 10 --- 17 32 35 48.7 500.0 -1.7 -27.7 143 1626 05 50 41 05 53 50 J1905+0952 17 33 15 49.9 502.7 -1.6 -26.0 33 1626 05 53 50 05 55 50 =1903+097 17 35 15 50.2 503.3 -1.5 -25.6 120 1657 05 53 51 05 55 50 GRS1915 17 35 15 50.1 499.3 -1.7 -28.3 -9 1657 No stop 05 59 20 --- 17 38 46 50.5 500.5 -1.6 -27.5 201 1711 05 55 51 05 59 20 J1905+0952 17 38 46 50.5 504.6 -1.5 -24.8 -9 1711 No stop 06 01 50 =1903+097 17 41 16 50.8 505.5 -1.4 -24.2 141 1749 05 59 21 06 01 50 GRS1915 17 41 16 50.7 501.4 -1.6 -27.0 -9 1749 No stop 06 05 20 --- 17 44 47 51.1 502.6 -1.5 -26.2 201 1803 06 01 51 06 06 00 J1905+0952 17 45 27 51.2 507.0 -1.4 -23.2 31 1803 06 06 00 06 07 50 =1903+097 17 47 17 51.4 507.6 -1.3 -22.8 110 1832 06 06 01 06 07 50 GRS1915 17 47 17 51.4 503.5 -1.5 -25.6 -9 1832 No stop 06 11 20 --- 17 50 48 51.8 504.7 -1.4 -24.8 201 1886 06 07 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 5 Mar 2021 Day 64 --- 06 11 20 J1905+0952 17 50 48 51.7 508.9 -1.3 -22.0 -10 1886 No stop 06 13 50 =1903+097 17 53 18 51.9 509.8 -1.2 -21.3 140 1925 06 11 21 06 13 50 GRS1915 17 53 18 52.0 505.6 -1.4 -24.2 -9 1925 No stop 06 17 20 --- 17 56 49 52.4 506.9 -1.3 -23.3 201 1979 06 13 51 06 18 00 J1905+0952 17 57 29 52.3 511.4 -1.2 -20.3 30 1979 06 18 00 06 19 50 =1903+097 17 59 19 52.5 512.1 -1.1 -19.8 110 2007 06 18 01 06 19 50 GRS1915 17 59 19 52.6 507.9 -1.3 -22.7 -10 2007 No stop 06 23 20 --- 18 02 50 52.9 509.2 -1.2 -21.8 200 2061 06 19 51 06 23 20 J1905+0952 18 02 50 52.7 513.4 -1.1 -18.9 -10 2061 No stop 06 25 50 =1903+097 18 05 20 52.9 514.4 -1.0 -18.2 140 2100 06 23 21 06 25 50 GRS1915 18 05 20 53.2 510.1 -1.2 -21.2 -10 2100 No stop 06 29 20 --- 18 08 51 53.5 511.5 -1.1 -20.3 200 2154 06 25 51 06 30 00 J1905+0952 18 09 31 53.2 516.0 -1.0 -17.1 30 2154 06 30 00 06 31 50 =1903+097 18 11 21 53.4 516.8 -0.9 -16.6 110 2182 06 30 01 06 31 50 GRS1915 18 11 21 53.7 512.5 -1.1 -19.6 -10 2182 No stop 06 35 20 --- 18 14 52 54.0 513.8 -1.0 -18.7 200 2236 06 31 51 06 35 20 J1905+0952 18 14 52 53.6 518.2 -0.9 -15.6 -10 2236 No stop 06 37 50 =1903+097 18 17 22 53.8 519.2 -0.8 -14.9 140 2275 06 35 21 06 37 50 GRS1915 18 17 22 54.2 514.8 -1.0 -18.0 -10 2275 No stop 06 41 20 --- 18 20 53 54.4 516.2 -0.9 -17.0 200 2329 06 37 51 06 42 00 J1905+0952 18 21 33 54.0 520.9 -0.8 -13.7 30 2329 06 42 00 06 43 50 =1903+097 18 23 23 54.1 521.6 -0.7 -13.2 110 2357 06 42 01 06 43 50 J1913+0932 18 23 23 53.4 518.6 -0.8 -15.3 -8 2357 No stop 06 46 20 --- 18 25 54 53.5 519.6 -0.8 -14.6 142 2396 06 43 51 06 47 00 J1905+0952 18 26 34 54.3 522.9 -0.7 -12.3 32 2396 06 47 00 06 49 00 =1903+097 18 28 34 54.4 523.7 -0.6 -11.7 120 2427 06 47 01 06 49 00 GRS1915 18 28 34 54.9 519.4 -0.8 -14.8 -10 2427 No stop 06 52 30 --- 18 32 05 55.1 520.8 -0.7 -13.8 200 2481 06 49 01 06 52 30 J1905+0952 18 32 05 54.6 525.2 -0.6 -10.7 -10 2481 No stop 06 55 00 =1903+097 18 34 35 54.7 526.3 -0.5 -9.9 140 2520 06 52 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 5 Mar 2021 Day 64 --- 06 55 00 GRS1915 18 34 35 55.3 521.9 -0.7 -13.1 -10 2520 No stop 06 58 30 --- 18 38 06 55.5 523.4 -0.6 -12.0 200 2574 06 55 01 06 59 10 J1905+0952 18 38 46 54.9 528.0 -0.5 -8.6 30 2574 06 59 10 07 01 00 =1903+097 18 40 36 54.9 528.8 -0.4 -8.1 110 2602 06 59 11 07 01 00 GRS1915 18 40 36 55.6 524.4 -0.6 -11.2 -10 2602 No stop 07 04 30 --- 18 44 06 55.8 525.9 -0.5 -10.2 200 2656 07 01 01 07 04 30 J1905+0952 18 44 06 55.0 530.3 -0.4 -7.0 -10 2656 No stop 07 07 00 =1903+097 18 46 37 55.1 531.4 -0.3 -6.2 140 2695 07 04 31 07 07 00 GRS1915 18 46 37 55.9 527.0 -0.5 -9.4 -10 2695 No stop 07 10 30 --- 18 50 07 56.0 528.5 -0.4 -8.3 200 2749 07 07 01 07 11 10 J1905+0952 18 50 48 55.2 533.1 -0.3 -5.0 30 2749 07 11 10 07 13 00 =1903+097 18 52 38 55.2 533.9 -0.2 -4.4 110 2777 07 11 11 07 13 00 GRS1915 18 52 38 56.1 529.6 -0.4 -7.5 -10 2777 No stop 07 16 30 --- 18 56 08 56.2 531.1 -0.3 -6.4 200 2831 07 13 01 07 16 30 J1905+0952 18 56 08 55.3 535.5 -0.2 -3.3 -10 2831 No stop 07 19 00 =1903+097 18 58 39 55.3 536.5 -0.1 -2.5 140 2870 07 16 31 07 19 00 GRS1915 18 58 39 56.2 532.2 -0.3 -5.6 -10 2870 No stop 07 22 30 --- 19 02 09 56.3 533.8 -0.2 -4.5 200 2924 07 19 01 07 23 10 J1905+0952 19 02 50 55.4 538.3 -0.1 -1.2 30 2924 07 23 10 07 25 00 =1903+097 19 04 40 55.4 539.1 -0.0 -0.6 110 2953 07 23 11 07 25 00 GRS1915 19 04 40 56.4 534.9 -0.2 -3.7 -10 2953 No stop 07 28 30 --- 19 08 10 56.4 536.5 -0.1 -2.6 200 3007 07 25 01 07 28 30 J1905+0952 19 08 10 55.4 540.7 0.0 0.5 -10 3007 No stop 07 31 00 =1903+097 19 10 41 55.4 541.7 0.1 1.3 140 3045 07 28 31 07 31 00 GRS1915 19 10 41 56.4 537.6 -0.1 -1.8 -9 3045 No stop 07 34 30 --- 19 14 11 56.5 539.1 -0.0 -0.6 201 3099 07 31 01 07 35 10 J1905+0952 19 14 52 55.3 543.6 0.1 2.6 30 3099 07 35 10 07 37 00 =1903+097 19 16 42 55.3 544.4 0.2 3.1 110 3128 07 35 11 07 37 00 J1913+0932 19 16 42 55.1 541.0 0.0 0.7 -8 3128 No stop 07 39 30 --- 19 19 12 55.0 542.1 0.1 1.5 142 3166 07 37 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 5 Mar 2021 Day 64 --- 07 40 00 J1800+3848 19 19 42 74.3 615.5 1.3 62.3 -72 3166 07 40 00 07 45 00 =1758+388 19 24 43 73.4 617.1 1.4 63.1 228 3244 07 40 01 07 45 40 J1905+0952 19 25 23 55.1 548.1 0.3 5.8 -55 3244 07 45 40 07 47 40 =1903+097 19 27 24 55.1 549.0 0.3 6.5 65 3275 07 45 41 07 47 40 GRS1915 19 27 24 56.4 545.0 0.2 3.6 -9 3275 No stop 07 51 10 --- 19 30 54 56.3 546.5 0.2 4.7 201 3329 07 47 41 07 51 10 J1905+0952 19 30 54 55.0 550.5 0.4 7.5 -9 3329 No stop 07 53 40 =1903+097 19 33 25 54.9 551.5 0.4 8.3 141 3367 07 51 11 07 53 40 GRS1915 19 33 25 56.3 547.6 0.3 5.5 -9 3367 No stop 07 57 10 --- 19 36 55 56.2 549.2 0.3 6.7 201 3421 07 53 41 07 57 50 J1905+0952 19 37 35 54.7 553.3 0.5 9.6 31 3421 07 57 50 07 59 40 =1903+097 19 39 26 54.7 554.1 0.5 10.1 110 3450 07 57 51 07 59 40 GRS1915 19 39 26 56.1 550.3 0.4 7.4 -9 3450 No stop 08 03 10 --- 19 42 56 56.0 551.8 0.4 8.5 201 3504 07 59 41 08 03 10 J1905+0952 19 42 56 54.5 555.5 0.6 11.2 -9 3504 No stop 08 05 40 =1903+097 19 45 27 54.4 556.6 0.6 11.9 141 3543 08 03 11 08 05 40 GRS1915 19 45 27 55.9 552.9 0.5 9.3 -9 3543 No stop 08 09 10 --- 19 48 57 55.7 554.4 0.5 10.4 201 3597 08 05 41 08 09 50 J1905+0952 19 49 37 54.2 558.3 0.7 13.1 31 3597 08 09 50 08 11 40 =1903+097 19 51 28 54.1 559.0 0.7 13.6 110 3625 08 09 51 08 11 40 GRS1915 19 51 28 55.6 555.5 0.6 11.2 -9 3625 No stop 08 15 10 --- 19 54 58 55.4 557.0 0.6 12.2 201 3679 08 11 41 08 15 10 J1905+0952 19 54 58 53.8 560.5 0.8 14.6 -9 3679 No stop 08 17 40 =1903+097 19 57 29 53.7 561.5 0.8 15.4 141 3718 08 15 11 08 17 40 GRS1915 19 57 29 55.3 558.0 0.7 13.0 -8 3718 No stop 08 21 10 --- 20 00 59 55.1 559.5 0.7 14.0 202 3772 08 17 41 08 21 50 J1905+0952 20 01 39 53.4 563.1 0.9 16.5 32 3772 08 21 50 08 23 40 =1903+097 20 03 29 53.3 563.9 0.9 17.0 110 3800 08 21 51 08 23 40 GRS1915 20 03 29 54.9 560.5 0.8 14.7 -8 3800 No stop 08 27 10 --- 20 07 00 54.7 562.0 0.8 15.8 202 3854 08 23 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 5 Mar 2021 Day 64 --- 08 27 10 J1905+0952 20 07 00 53.0 565.2 1.0 18.0 -8 3854 No stop 08 29 40 =1903+097 20 09 30 52.8 566.2 1.0 18.6 142 3893 08 27 11 08 29 40 GRS1915 20 09 30 54.5 563.0 0.9 16.5 -8 3893 No stop 08 33 10 --- 20 13 01 54.3 564.4 0.9 17.5 202 3947 08 29 41 08 33 50 J1905+0952 20 13 41 52.5 567.8 1.1 19.7 32 3947 08 33 50 08 35 40 =1903+097 20 15 31 52.3 568.5 1.1 20.2 110 3975 08 33 51 08 35 40 J1913+0932 20 15 31 52.6 565.4 1.0 18.0 -8 3975 No stop 08 38 10 --- 20 18 02 52.4 566.3 1.1 18.7 142 4014 08 35 41 08 38 50 J1905+0952 20 18 42 52.0 569.7 1.2 21.0 32 4014 08 38 50 08 40 50 =1903+097 20 20 42 51.9 570.4 1.2 21.5 120 4045 08 38 51 08 40 50 GRS1915 20 20 42 53.7 567.4 1.1 19.6 -8 4045 No stop 08 44 20 --- 20 24 13 53.4 568.8 1.1 20.5 202 4099 08 40 51 08 44 20 J1905+0952 20 24 13 51.5 571.7 1.3 22.4 -8 4099 No stop 08 46 50 =1903+097 20 26 43 51.3 572.6 1.3 23.0 142 4138 08 44 21 08 46 50 GRS1915 20 26 43 53.2 569.8 1.2 21.1 -8 4138 No stop 08 50 20 --- 20 30 14 52.9 571.1 1.2 22.0 202 4192 08 46 51 08 51 00 J1905+0952 20 30 54 50.9 574.1 1.4 24.0 32 4192 08 51 00 08 52 50 =1903+097 20 32 44 50.7 574.8 1.4 24.4 110 4220 08 51 01 08 52 50 GRS1915 20 32 44 52.6 572.0 1.3 22.7 -8 4220 No stop 08 56 20 --- 20 36 15 52.3 573.3 1.3 23.5 202 4274 08 52 51 08 56 20 J1905+0952 20 36 15 50.3 576.0 1.5 25.2 -9 4274 No stop 08 58 50 =1903+097 20 38 45 50.1 576.9 1.5 25.8 141 4313 08 56 21 08 58 50 GRS1915 20 38 45 52.0 574.3 1.4 24.1 -9 4313 No stop 09 02 20 --- 20 42 16 51.7 575.5 1.4 25.0 201 4367 08 58 51 09 03 00 J1905+0952 20 42 56 49.6 578.3 1.6 26.7 31 4367 09 03 00 09 04 50 =1903+097 20 44 46 49.4 579.0 1.6 27.1 110 4395 09 03 01 09 04 50 GRS1915 20 44 46 51.4 576.4 1.5 25.5 -9 4395 No stop 09 08 20 --- 20 48 17 51.1 577.7 1.5 26.3 201 4449 09 04 51 09 08 20 J1905+0952 20 48 17 49.0 580.1 1.7 27.8 -9 4449 No stop 09 10 50 =1903+097 20 50 47 48.7 581.0 1.7 28.3 141 4488 09 08 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 5 Mar 2021 Day 64 --- 09 10 50 GRS1915 20 50 47 50.8 578.5 1.6 26.9 -9 4488 No stop 09 14 20 --- 20 54 18 50.4 579.7 1.6 27.7 201 4542 09 10 51 09 15 00 J1905+0952 20 54 58 48.2 582.3 1.8 29.2 31 4542 09 15 00 09 16 50 =1903+097 20 56 48 48.0 582.9 1.8 29.5 110 4571 09 15 01 09 16 50 GRS1915 20 56 48 50.1 580.6 1.7 28.2 -9 4571 No stop 09 20 20 --- 21 00 19 49.7 581.8 1.7 28.9 201 4625 09 16 51 09 20 20 J1905+0952 21 00 19 47.6 584.0 1.9 30.2 -9 4625 No stop 09 22 50 =1903+097 21 02 49 47.3 584.8 1.9 30.7 141 4663 09 20 21 09 22 50 GRS1915 21 02 49 49.4 582.6 1.8 29.4 -9 4663 No stop 09 26 20 --- 21 06 20 49.0 583.7 1.8 30.1 201 4717 09 22 51 09 27 00 J1905+0952 21 07 00 46.7 586.1 2.0 31.4 31 4717 09 27 00 09 28 50 =1903+097 21 08 50 46.5 586.7 2.0 31.8 110 4746 09 27 01 09 28 50 J1913+0932 21 08 50 47.2 584.0 1.9 30.2 -7 4746 No stop 09 31 20 --- 21 11 21 46.9 584.8 1.9 30.6 143 4784 09 28 51 09 32 00 J1905+0952 21 12 01 46.1 587.6 2.1 32.3 33 4784 09 32 00 09 34 00 =1903+097 21 14 01 45.8 588.2 2.1 32.7 120 4815 09 32 01 09 34 00 GRS1915 21 14 01 48.0 586.2 2.0 31.6 -9 4815 No stop 09 37 30 --- 21 17 32 47.5 587.3 2.0 32.2 201 4869 09 34 01 09 37 30 J1905+0952 21 17 32 45.4 589.3 2.2 33.3 -9 4869 No stop 09 40 00 =1903+097 21 20 02 45.0 590.0 2.2 33.7 141 4908 09 37 31 09 40 00 GRS1915 21 20 02 47.2 588.0 2.1 32.7 -9 4908 No stop 09 43 30 --- 21 23 33 46.7 589.1 2.1 33.3 201 4962 09 40 01 09 44 10 J1905+0952 21 24 13 44.4 591.2 2.3 34.3 31 4962 09 44 10 09 46 10 =1903+097 21 26 13 44.2 591.8 2.3 34.6 120 4993 09 44 11 09 46 10 GRS1915 21 26 13 46.4 589.9 2.2 33.7 -9 4993 No stop 09 49 40 --- 21 29 44 45.9 590.9 2.2 34.3 201 5047 09 46 11 09 49 40 J1905+0952 21 29 44 43.7 592.8 2.4 35.2 -9 5047 No stop 09 52 10 =1903+097 21 32 14 43.3 593.4 2.4 35.5 141 5086 09 49 41 09 52 10 GRS1915 21 32 14 45.5 591.6 2.3 34.7 -9 5086 No stop 09 55 40 --- 21 35 45 45.0 592.6 2.3 35.3 201 5140 09 52 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 5 Mar 2021 Day 64 --- 09 56 20 J1905+0952 21 36 25 42.7 594.6 2.5 36.1 31 5140 09 56 20 09 58 20 =1903+097 21 38 25 42.4 595.1 2.5 36.4 120 5171 09 56 21 09 58 20 GRS1915 21 38 25 44.7 593.4 2.4 35.7 -9 5171 No stop 10 01 50 --- 21 41 56 44.2 594.4 2.4 36.2 201 5225 09 58 21 10 01 50 J1905+0952 21 41 56 41.9 596.1 2.6 36.9 -9 5225 No stop 10 04 20 =1903+097 21 44 26 41.5 596.7 2.6 37.2 141 5264 10 01 51 10 04 20 GRS1915 21 44 26 43.8 595.1 2.5 36.5 -9 5264 No stop 10 07 50 --- 21 47 57 43.3 596.0 2.5 37.0 201 5318 10 04 21 10 08 30 J1905+0952 21 48 37 40.9 597.8 2.7 37.8 31 5318 10 08 30 10 10 30 =1903+097 21 50 37 40.6 598.3 2.7 38.0 120 5349 10 08 31 10 10 30 GRS1915 21 50 37 42.9 596.7 2.6 37.4 -9 5349 No stop 10 14 00 --- 21 54 08 42.4 597.7 2.6 37.8 201 5403 10 10 31 10 14 00 J1905+0952 21 54 08 40.1 599.2 2.8 38.4 -9 5403 No stop 10 16 30 =1903+097 21 56 38 39.7 599.8 2.8 38.7 141 5441 10 14 01 10 16 30 GRS1915 21 56 38 42.0 598.3 2.7 38.2 -9 5441 No stop 10 20 00 --- 22 00 09 41.4 599.2 2.7 38.6 201 5495 10 16 31 10 20 40 J1905+0952 22 00 49 39.0 600.9 2.9 39.2 31 5495 10 20 40 10 22 40 =1903+097 22 02 49 38.7 601.4 2.9 39.4 120 5526 10 20 41 10 22 40 J1913+0932 22 02 49 39.7 599.2 2.8 38.4 -7 5526 No stop 10 25 10 --- 22 05 19 39.3 599.8 2.8 38.7 143 5565 10 22 41 10 25 50 J1905+0952 22 06 00 38.2 602.1 3.0 39.8 33 5565 10 25 50 10 27 50 =1903+097 22 08 00 37.9 602.6 3.0 40.0 120 5596 10 25 51 10 27 50 GRS1915 22 08 00 40.2 601.2 2.9 39.5 -9 5596 No stop 10 31 20 --- 22 11 30 39.7 602.1 2.9 39.9 201 5650 10 27 51 10 31 20 J1905+0952 22 11 30 37.3 603.4 3.1 40.3 -9 5650 No stop 10 33 50 =1903+097 22 14 01 36.9 604.0 3.1 40.6 141 5689 10 31 21 10 33 50 GRS1915 22 14 01 39.3 602.7 3.0 40.2 -9 5689 No stop 10 37 20 --- 22 17 31 38.7 603.5 3.0 40.5 201 5743 10 33 51 10 38 00 J1905+0952 22 18 12 36.3 605.0 3.2 41.0 31 5743 10 38 00 10 40 00 =1903+097 22 20 12 35.9 605.5 3.2 41.2 120 5774 10 38 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 5 Mar 2021 Day 64 --- 10 40 00 GRS1915 22 20 12 38.3 604.1 3.1 40.8 -9 5774 No stop 10 43 30 --- 22 23 42 37.7 605.0 3.1 41.2 201 5828 10 40 01 10 43 30 J1905+0952 22 23 42 35.4 606.3 3.3 41.5 -9 5828 No stop 10 46 00 =1903+097 22 26 13 35.0 606.8 3.3 41.7 141 5866 10 43 31 10 46 00 GRS1915 22 26 13 37.3 605.6 3.2 41.4 -9 5866 No stop 10 49 30 --- 22 29 43 36.8 606.4 3.2 41.7 201 5921 10 46 01 10 50 10 J1905+0952 22 30 24 34.3 607.8 3.4 42.1 31 5921 10 50 10 10 52 10 =1903+097 22 32 24 33.9 608.2 3.4 42.2 120 5951 10 50 11 10 52 10 GRS1915 22 32 24 36.3 607.0 3.3 41.9 -9 5951 No stop 10 55 40 --- 22 35 54 35.7 607.8 3.3 42.2 201 6006 10 52 11 10 55 40 J1905+0952 22 35 54 33.4 609.0 3.5 42.5 -9 6006 No stop 10 58 10 =1903+097 22 38 25 32.9 609.5 3.5 42.7 141 6044 10 55 41 10 58 10 GRS1915 22 38 25 35.3 608.3 3.4 42.4 -9 6044 No stop 11 01 40 --- 22 41 55 34.7 609.1 3.4 42.7 201 6098 10 58 11 11 02 20 J1905+0952 22 42 36 32.2 610.4 3.6 43.0 31 6098 11 02 20 11 04 20 =1903+097 22 44 36 31.9 610.8 3.6 43.1 120 6129 11 02 21 11 04 20 J1913+0932 22 44 36 33.0 608.9 3.5 42.4 -7 6129 No stop 11 06 50 --- 22 47 06 32.5 609.5 3.5 42.6 143 6168 11 04 21 11 07 30 J1905+0952 22 47 46 31.4 611.5 3.7 43.3 33 6168 11 07 30 11 09 30 =1903+097 22 49 47 31.0 611.9 3.7 43.5 120 6199 11 07 31 11 09 30 GRS1915 22 49 47 33.4 610.8 3.6 43.3 -9 6199 No stop 11 13 00 --- 22 53 17 32.8 611.5 3.6 43.5 201 6253 11 09 31 11 13 00 J1905+0952 22 53 17 30.4 612.7 3.8 43.7 -9 6253 No stop 11 15 30 =1903+097 22 55 48 30.0 613.2 3.8 43.9 141 6292 11 13 01 11 15 30 GRS1915 22 55 48 32.4 612.1 3.7 43.7 -9 6292 No stop 11 19 00 --- 22 59 18 31.8 612.8 3.7 43.9 201 6346 11 15 31 11 19 40 J1905+0952 22 59 58 29.3 614.0 3.9 44.1 31 6346 11 19 40 11 21 40 =1903+097 23 01 59 28.9 614.4 3.9 44.2 120 6377 11 19 41 11 21 40 GRS1915 23 01 59 31.4 613.4 3.8 44.1 -9 6377 No stop 11 25 10 --- 23 05 29 30.8 614.1 3.8 44.3 201 6431 11 21 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 5 Mar 2021 Day 64 --- 11 25 10 J1905+0952 23 05 29 28.3 615.1 4.0 44.4 -9 6431 No stop 11 27 40 =1903+097 23 08 00 27.9 615.6 4.0 44.5 141 6469 11 25 11 11 27 40 GRS1915 23 08 00 30.3 614.6 3.9 44.4 -9 6469 No stop 11 31 10 --- 23 11 30 29.7 615.3 3.9 44.6 201 6523 11 27 41 11 31 50 J1905+0952 23 12 10 27.2 616.5 4.1 44.7 31 6523 11 31 50 11 33 50 =1903+097 23 14 11 26.8 616.9 4.1 44.8 120 6554 11 31 51 11 33 50 GRS1915 23 14 11 29.3 615.8 4.0 44.8 -9 6554 No stop 11 37 20 --- 23 17 41 28.7 616.5 4.0 44.9 201 6608 11 33 51 11 37 20 J1905+0952 23 17 41 26.2 617.5 4.2 45.0 -9 6608 No stop 11 39 50 =1903+097 23 20 12 25.8 618.0 4.2 45.1 141 6647 11 37 21 11 39 50 GRS1915 23 20 12 28.2 617.0 4.1 45.1 -9 6647 No stop 11 43 20 --- 23 23 42 27.6 617.7 4.1 45.2 201 6701 11 39 51 11 44 00 J1905+0952 23 24 22 25.1 618.8 4.3 45.2 31 6701 11 44 00 11 46 00 =1903+097 23 26 23 24.7 619.2 4.3 45.3 120 6732 11 44 01 11 46 00 J1913+0932 23 26 23 25.8 617.5 4.2 44.9 -7 6732 No stop 11 48 30 --- 23 28 53 25.4 618.0 4.2 45.0 143 6771 11 46 01 11 49 10 J1905+0952 23 29 33 24.2 619.8 4.4 45.4 33 6771 11 49 10 11 52 40 =1903+097 23 33 04 23.5 620.5 4.4 45.5 210 6825 11 49 11 11 54 00 J2253+1608 23 34 24 60.5 559.5 0.7 14.4 -5 6825 11 54 00 12 00 00 =3C454.3 23 40 25 60.2 562.3 0.8 16.4 355 6918 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: 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 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