COVER INFORMATION Station: ZELENCHK (Code Zc ) 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 ZELENCHK (Code Zc ) 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: 330.49 330.49 330.49 330.49 394.49 394.49 394.49 394.49 458.49 458.49 458.49 458.49 522.49 522.49 522.49 522.49 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 37 00 J1905+0952 18 00 26 53.2 512.1 -1.1 -20.1 0 0 12 37 00 12 39 30 =1903+097 18 02 56 53.4 513.0 -1.1 -19.4 150 38 12 37 01 12 39 30 GRS1915 18 02 56 53.6 508.7 -1.2 -22.5 -23 38 No stop 12 43 00 --- 18 06 26 53.9 510.1 -1.2 -21.5 187 92 12 39 31 12 43 00 J1905+0952 18 06 26 53.7 514.4 -1.0 -18.4 -24 92 No stop 12 45 30 =1903+097 18 08 57 53.9 515.4 -1.0 -17.8 126 131 12 43 01 12 45 30 GRS1915 18 08 57 54.1 511.0 -1.1 -20.9 -23 131 No stop 12 49 00 --- 18 12 27 54.4 512.4 -1.1 -19.9 187 185 12 45 31 12 49 40 J1905+0952 18 13 08 54.2 517.1 -0.9 -16.6 16 185 12 49 40 12 51 30 =1903+097 18 14 58 54.3 517.8 -0.9 -16.1 110 213 12 49 41 12 51 30 GRS1915 18 14 58 54.6 513.4 -1.0 -19.2 -23 213 No stop 12 55 00 --- 18 18 28 54.9 514.8 -1.0 -18.2 187 267 12 51 31 12 55 00 J1905+0952 18 18 28 54.5 519.3 -0.8 -15.0 -24 267 No stop 12 57 30 =1903+097 18 20 59 54.7 520.3 -0.8 -14.3 126 305 12 55 01 12 57 30 GRS1915 18 20 59 55.1 515.9 -0.9 -17.5 -24 305 No stop 13 01 00 --- 18 24 29 55.3 517.3 -0.9 -16.5 186 359 12 57 31 13 01 40 J1905+0952 18 25 10 54.9 522.0 -0.7 -13.1 16 359 13 01 40 13 03 30 =1903+097 18 27 00 55.0 522.8 -0.7 -12.5 110 387 13 01 41 13 03 30 GRS1915 18 27 00 55.5 518.3 -0.8 -15.7 -24 387 No stop 13 07 00 --- 18 30 30 55.7 519.8 -0.8 -14.7 186 441 13 03 31 13 07 00 J1905+0952 18 30 30 55.2 524.3 -0.6 -11.5 -24 441 No stop 13 09 30 =1903+097 18 33 01 55.3 525.3 -0.6 -10.7 126 479 13 07 01 13 09 30 GRS1915 18 33 01 55.9 520.9 -0.7 -13.9 -24 479 No stop 13 13 00 --- 18 36 31 56.1 522.4 -0.7 -12.9 186 533 13 09 31 13 13 40 J1905+0952 18 37 12 55.5 527.1 -0.5 -9.4 16 533 13 13 40 13 15 30 =1903+097 18 39 02 55.6 527.9 -0.5 -8.8 110 562 13 13 41 Schedule for ZELENCHK (Code Zc ) 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 15 30 GRS1915 18 39 02 56.2 523.5 -0.6 -12.1 -24 562 No stop 13 19 00 --- 18 42 32 56.4 525.0 -0.6 -11.0 186 615 13 15 31 13 19 00 J1905+0952 18 42 32 55.7 529.4 -0.4 -7.7 -24 615 No stop 13 21 30 =1903+097 18 45 03 55.8 530.5 -0.4 -6.9 126 654 13 19 01 13 21 30 GRS1915 18 45 03 56.5 526.1 -0.5 -10.2 -24 654 No stop 13 25 00 --- 18 48 33 56.7 527.6 -0.5 -9.1 186 708 13 21 31 13 25 40 J1905+0952 18 49 14 55.9 532.3 -0.3 -5.6 16 708 13 25 40 13 27 30 =1903+097 18 51 04 55.9 533.1 -0.3 -5.0 110 736 13 25 41 13 27 30 J1913+0932 18 51 04 55.4 529.8 -0.4 -7.4 -21 736 No stop 13 30 00 --- 18 53 34 55.5 530.9 -0.3 -6.6 129 774 13 27 31 13 30 40 J1905+0952 18 54 14 56.0 534.5 -0.2 -4.0 18 774 13 30 40 13 32 40 =1903+097 18 56 15 56.0 535.4 -0.2 -3.4 120 805 13 30 41 13 32 40 GRS1915 18 56 15 56.9 531.0 -0.3 -6.6 -23 805 No stop 13 36 10 --- 18 59 45 57.0 532.6 -0.3 -5.4 187 859 13 32 41 13 36 10 J1905+0952 18 59 45 56.1 537.0 -0.1 -2.2 -24 859 No stop 13 38 40 =1903+097 19 02 16 56.1 538.1 -0.1 -1.4 126 897 13 36 11 13 38 40 GRS1915 19 02 16 57.1 533.7 -0.2 -4.6 -23 897 No stop 13 42 10 --- 19 05 46 57.1 535.3 -0.2 -3.5 187 951 13 38 41 13 42 50 J1905+0952 19 06 26 56.1 539.9 -0.0 -0.1 16 951 13 42 50 13 44 40 =1903+097 19 08 17 56.1 540.7 0.0 0.5 110 979 13 42 51 13 44 40 GRS1915 19 08 17 57.2 536.4 -0.1 -2.6 -23 979 No stop 13 48 10 --- 19 11 47 57.2 538.0 -0.1 -1.5 187 1033 13 44 41 13 48 10 J1905+0952 19 11 47 56.1 542.3 0.1 1.7 -24 1033 No stop 13 50 40 =1903+097 19 14 18 56.1 543.4 0.1 2.5 126 1072 13 48 11 13 50 40 GRS1915 19 14 18 57.2 539.2 -0.0 -0.6 -23 1072 No stop 13 54 10 --- 19 17 48 57.2 540.7 0.0 0.6 187 1126 13 50 41 13 54 50 J1905+0952 19 18 28 56.0 545.2 0.2 3.8 16 1126 13 54 50 13 56 40 =1903+097 19 20 19 56.0 546.0 0.2 4.4 110 1154 13 54 51 13 56 40 GRS1915 19 20 19 57.2 541.9 0.1 1.4 -23 1154 No stop 14 00 10 --- 19 23 49 57.2 543.5 0.1 2.6 187 1208 13 56 41 Schedule for ZELENCHK (Code Zc ) 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 --- 14 00 10 J1905+0952 19 23 49 55.9 547.6 0.3 5.5 -23 1208 No stop 14 02 40 =1903+097 19 26 20 55.8 548.7 0.3 6.3 127 1246 14 00 11 14 02 40 GRS1915 19 26 20 57.1 544.6 0.2 3.4 -23 1246 No stop 14 06 10 --- 19 29 50 57.1 546.2 0.2 4.5 187 1300 14 02 41 14 06 50 J1905+0952 19 30 30 55.7 550.5 0.4 7.7 17 1300 14 06 50 14 08 40 =1903+097 19 32 21 55.7 551.3 0.4 8.2 110 1328 14 06 51 14 08 40 GRS1915 19 32 21 57.0 547.3 0.3 5.4 -23 1328 No stop 14 12 10 --- 19 35 51 56.9 548.9 0.3 6.5 187 1382 14 08 41 14 12 10 J1905+0952 19 35 51 55.5 552.8 0.5 9.3 -23 1382 No stop 14 14 40 =1903+097 19 38 22 55.4 553.9 0.5 10.1 127 1421 14 12 11 14 14 40 GRS1915 19 38 22 56.8 550.0 0.4 7.3 -22 1421 No stop 14 18 10 --- 19 41 52 56.7 551.6 0.4 8.5 188 1474 14 14 41 14 18 50 J1905+0952 19 42 32 55.2 555.6 0.6 11.4 17 1474 14 18 50 14 20 40 =1903+097 19 44 23 55.1 556.4 0.6 12.0 110 1503 14 18 51 14 20 40 J1913+0932 19 44 23 55.2 553.0 0.5 9.5 -21 1503 No stop 14 23 10 --- 19 46 53 55.1 554.1 0.5 10.3 129 1541 14 20 41 14 23 50 J1905+0952 19 47 33 55.0 557.7 0.7 12.9 18 1541 14 23 50 14 25 50 =1903+097 19 49 33 54.9 558.6 0.7 13.5 120 1572 14 23 51 14 25 50 GRS1915 19 49 33 56.4 554.9 0.6 10.9 -22 1572 No stop 14 29 20 --- 19 53 04 56.2 556.5 0.6 12.0 188 1626 14 25 51 14 29 20 J1905+0952 19 53 04 54.6 560.0 0.8 14.5 -22 1626 No stop 14 31 50 =1903+097 19 55 34 54.5 561.1 0.8 15.3 128 1664 14 29 21 14 31 50 GRS1915 19 55 34 56.1 557.5 0.7 12.8 -22 1664 No stop 14 35 20 --- 19 59 05 55.9 559.0 0.7 13.9 188 1718 14 31 51 14 36 00 J1905+0952 19 59 45 54.2 562.8 0.9 16.5 18 1718 14 36 00 14 37 50 =1903+097 20 01 35 54.1 563.5 0.9 17.0 110 1746 14 36 01 14 37 50 GRS1915 20 01 35 55.8 560.1 0.8 14.6 -21 1746 No stop 14 41 20 --- 20 05 06 55.5 561.6 0.8 15.7 189 1800 14 37 51 14 41 20 J1905+0952 20 05 06 53.8 564.9 1.0 18.0 -22 1800 No stop 14 43 50 =1903+097 20 07 36 53.6 565.9 1.0 18.7 128 1838 14 41 21 Schedule for ZELENCHK (Code Zc ) 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 43 50 GRS1915 20 07 36 55.4 562.6 0.9 16.4 -21 1838 No stop 14 47 20 --- 20 11 07 55.1 564.1 0.9 17.4 189 1892 14 43 51 14 48 00 J1905+0952 20 11 47 53.3 567.5 1.1 19.8 19 1892 14 48 00 14 49 50 =1903+097 20 13 37 53.1 568.2 1.1 20.3 110 1921 14 48 01 14 49 50 GRS1915 20 13 37 54.9 565.1 1.0 18.2 -21 1921 No stop 14 53 20 --- 20 17 08 54.6 566.5 1.0 19.2 189 1974 14 49 51 14 53 20 J1905+0952 20 17 08 52.8 569.6 1.2 21.2 -21 1974 No stop 14 55 50 =1903+097 20 19 38 52.6 570.5 1.2 21.9 129 2013 14 53 21 14 55 50 GRS1915 20 19 38 54.4 567.5 1.1 19.8 -20 2013 No stop 14 59 20 --- 20 23 09 54.1 568.9 1.1 20.8 190 2067 14 55 51 15 00 00 J1905+0952 20 23 49 52.2 572.1 1.3 22.9 19 2067 15 00 00 15 01 50 =1903+097 20 25 39 52.0 572.8 1.3 23.4 110 2095 15 00 01 15 01 50 GRS1915 20 25 39 53.9 569.9 1.2 21.5 -20 2095 No stop 15 05 20 --- 20 29 10 53.6 571.2 1.2 22.4 190 2149 15 01 51 15 05 20 J1905+0952 20 29 10 51.7 574.0 1.4 24.2 -20 2149 No stop 15 07 50 =1903+097 20 31 40 51.4 574.9 1.4 24.8 130 2187 15 05 21 15 07 50 GRS1915 20 31 40 53.4 572.2 1.3 23.0 -20 2187 No stop 15 11 20 --- 20 35 11 53.0 573.5 1.3 23.9 190 2241 15 07 51 15 12 00 J1905+0952 20 35 51 51.0 576.4 1.5 25.8 20 2241 15 12 00 15 13 50 =1903+097 20 37 41 50.8 577.1 1.5 26.2 110 2269 15 12 01 15 13 50 J1913+0932 20 37 41 51.3 574.1 1.4 24.2 -20 2269 No stop 15 16 20 --- 20 40 12 51.1 575.0 1.4 24.8 130 2308 15 13 51 15 17 00 J1905+0952 20 40 52 50.4 578.2 1.6 26.9 19 2308 15 17 00 15 19 00 =1903+097 20 42 52 50.2 578.9 1.6 27.4 120 2338 15 17 01 15 19 00 GRS1915 20 42 52 52.2 576.3 1.4 25.8 -19 2338 No stop 15 22 30 --- 20 46 23 51.8 577.6 1.5 26.6 191 2392 15 19 01 15 22 30 J1905+0952 20 46 23 49.8 580.1 1.7 28.1 -19 2392 No stop 15 25 00 =1903+097 20 48 53 49.5 580.9 1.7 28.7 131 2431 15 22 31 15 25 00 GRS1915 20 48 53 51.6 578.4 1.5 27.2 -19 2431 No stop 15 28 30 --- 20 52 24 51.2 579.7 1.6 28.0 191 2485 15 25 01 Schedule for ZELENCHK (Code Zc ) 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 29 10 J1905+0952 20 53 04 49.0 582.3 1.8 29.5 21 2485 15 29 10 15 31 00 =1903+097 20 54 54 48.8 582.9 1.8 29.9 110 2513 15 29 11 15 31 00 GRS1915 20 54 54 50.9 580.5 1.6 28.5 -18 2513 No stop 15 34 30 --- 20 58 25 50.5 581.7 1.7 29.3 192 2567 15 31 01 15 34 30 J1905+0952 20 58 25 48.4 584.0 1.9 30.6 -19 2567 No stop 15 37 00 =1903+097 21 00 55 48.0 584.8 1.9 31.1 131 2605 15 34 31 15 37 00 GRS1915 21 00 55 50.2 582.6 1.7 29.8 -18 2605 No stop 15 40 30 --- 21 04 26 49.7 583.7 1.8 30.5 192 2659 15 37 01 15 41 10 J1905+0952 21 05 06 47.5 586.1 2.0 31.9 22 2659 15 41 10 15 43 00 =1903+097 21 06 56 47.3 586.7 2.0 32.2 110 2687 15 41 11 15 43 00 GRS1915 21 06 56 49.4 584.5 1.8 31.0 -18 2687 No stop 15 46 30 --- 21 10 27 49.0 585.6 1.9 31.7 192 2741 15 43 01 15 46 30 J1905+0952 21 10 27 46.8 587.7 2.1 32.8 -18 2741 No stop 15 49 00 =1903+097 21 12 57 46.5 588.5 2.1 33.3 132 2779 15 46 31 15 49 00 GRS1915 21 12 57 48.6 586.4 1.9 32.2 -18 2779 No stop 15 52 30 --- 21 16 28 48.2 587.5 2.0 32.9 192 2833 15 49 01 15 53 10 J1905+0952 21 17 08 45.9 589.7 2.2 34.0 22 2833 15 53 10 15 55 00 =1903+097 21 18 58 45.6 590.3 2.2 34.3 110 2862 15 53 11 15 55 00 GRS1915 21 18 58 47.8 588.3 2.0 33.3 -18 2862 No stop 15 58 30 --- 21 22 29 47.4 589.4 2.1 33.9 192 2915 15 55 01 15 58 30 J1905+0952 21 22 29 45.1 591.3 2.3 34.9 -18 2915 No stop 16 01 00 =1903+097 21 24 59 44.8 592.0 2.3 35.3 132 2954 15 58 31 16 01 00 GRS1915 21 24 59 47.0 590.1 2.1 34.4 -18 2954 No stop 16 04 30 --- 21 28 30 46.5 591.2 2.2 34.9 192 3008 16 01 01 16 05 10 J1905+0952 21 29 10 44.2 593.2 2.4 35.9 22 3008 16 05 10 16 07 00 =1903+097 21 31 00 43.9 593.7 2.4 36.2 110 3036 16 05 11 16 07 00 J1913+0932 21 31 00 44.8 591.2 2.3 34.8 -19 3036 No stop 16 09 30 --- 21 33 30 44.4 592.0 2.3 35.2 131 3074 16 07 01 16 10 00 J1800+3848 21 34 01 50.4 641.7 3.5 65.1 -45 3074 16 10 00 16 15 00 =1758+388 21 39 01 49.5 642.4 3.6 64.8 255 3151 16 10 01 Schedule for ZELENCHK (Code Zc ) 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 15 40 J1905+0952 21 39 41 42.6 596.0 2.6 37.4 -31 3151 16 15 40 16 17 40 =1903+097 21 41 42 42.3 596.6 2.6 37.7 89 3182 16 15 41 16 17 40 GRS1915 21 41 42 44.6 594.9 2.4 37.0 -18 3182 No stop 16 21 10 --- 21 45 12 44.1 595.9 2.5 37.5 192 3236 16 17 41 16 21 10 J1905+0952 21 45 12 41.8 597.5 2.6 38.2 -19 3236 No stop 16 23 40 =1903+097 21 47 43 41.4 598.1 2.7 38.5 131 3274 16 21 11 16 23 40 GRS1915 21 47 43 43.7 596.5 2.5 37.8 -18 3274 No stop 16 27 10 --- 21 51 13 43.2 597.5 2.6 38.3 192 3328 16 23 41 16 27 50 J1905+0952 21 51 53 40.8 599.2 2.8 39.0 21 3328 16 27 50 16 29 40 =1903+097 21 53 44 40.5 599.7 2.8 39.2 110 3356 16 27 51 16 29 40 GRS1915 21 53 44 42.8 598.1 2.6 38.6 -18 3356 No stop 16 33 10 --- 21 57 14 42.3 599.0 2.7 39.1 192 3410 16 29 41 16 33 10 J1905+0952 21 57 14 39.9 600.5 2.8 39.6 -19 3410 No stop 16 35 40 =1903+097 21 59 45 39.5 601.1 2.9 39.9 131 3449 16 33 11 16 35 40 GRS1915 21 59 45 41.9 599.7 2.7 39.4 -19 3449 No stop 16 39 10 --- 22 03 15 41.3 600.6 2.8 39.8 191 3503 16 35 41 16 39 50 J1905+0952 22 03 55 38.9 602.2 3.0 40.4 21 3503 16 39 50 16 41 40 =1903+097 22 05 46 38.6 602.6 3.0 40.6 110 3531 16 39 51 16 41 40 GRS1915 22 05 46 40.9 601.2 2.8 40.1 -19 3531 No stop 16 45 10 --- 22 09 16 40.4 602.1 2.9 40.5 191 3585 16 41 41 16 45 10 J1905+0952 22 09 16 38.0 603.4 3.0 41.0 -19 3585 No stop 16 47 40 =1903+097 22 11 47 37.6 604.0 3.1 41.2 131 3623 16 45 11 16 47 40 GRS1915 22 11 47 40.0 602.7 2.9 40.8 -19 3623 No stop 16 51 10 --- 22 15 17 39.4 603.5 3.0 41.2 191 3677 16 47 41 16 51 50 J1905+0952 22 15 57 36.9 605.0 3.2 41.6 21 3677 16 51 50 16 53 40 =1903+097 22 17 48 36.6 605.4 3.2 41.8 110 3705 16 51 51 16 53 40 GRS1915 22 17 48 39.0 604.1 3.0 41.4 -19 3705 No stop 16 57 10 --- 22 21 18 38.4 604.9 3.1 41.8 191 3759 16 53 41 16 57 10 J1905+0952 22 21 18 36.1 606.2 3.2 42.1 -19 3759 No stop 16 59 40 =1903+097 22 23 49 35.6 606.8 3.3 42.3 131 3797 16 57 11 Schedule for ZELENCHK (Code Zc ) 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 59 40 GRS1915 22 23 49 38.0 605.5 3.1 42.0 -19 3797 No stop 17 03 10 --- 22 27 19 37.4 606.3 3.2 42.3 191 3851 16 59 41 17 03 50 J1905+0952 22 27 59 35.0 607.7 3.4 42.7 21 3851 17 03 50 17 05 40 =1903+097 22 29 50 34.6 608.1 3.4 42.8 110 3879 17 03 51 17 05 40 J1913+0932 22 29 50 35.7 606.1 3.3 42.0 -17 3879 No stop 17 08 10 --- 22 32 20 35.3 606.7 3.3 42.3 133 3918 17 05 41 17 08 50 J1905+0952 22 33 00 34.1 608.8 3.4 43.1 22 3918 17 08 50 17 10 50 =1903+097 22 35 00 33.8 609.2 3.5 43.3 120 3949 17 08 51 17 10 50 GRS1915 22 35 00 36.2 608.1 3.3 43.0 -19 3949 No stop 17 14 20 --- 22 38 31 35.6 608.8 3.4 43.3 191 4003 17 10 51 17 14 20 J1905+0952 22 38 31 33.2 610.0 3.5 43.5 -19 4003 No stop 17 16 50 =1903+097 22 41 01 32.8 610.5 3.6 43.7 131 4041 17 14 21 17 16 50 GRS1915 22 41 01 35.2 609.4 3.4 43.5 -19 4041 No stop 17 20 20 --- 22 44 32 34.6 610.1 3.5 43.8 191 4095 17 16 51 17 21 00 J1905+0952 22 45 12 32.0 611.4 3.6 44.0 21 4095 17 21 00 17 22 50 =1903+097 22 47 02 31.7 611.8 3.7 44.1 110 4123 17 21 01 17 22 50 GRS1915 22 47 02 34.1 610.7 3.5 43.9 -19 4123 No stop 17 26 20 --- 22 50 33 33.5 611.4 3.6 44.2 191 4177 17 22 51 17 26 20 J1905+0952 22 50 33 31.1 612.5 3.7 44.3 -19 4177 No stop 17 28 50 =1903+097 22 53 03 30.7 613.0 3.8 44.5 131 4215 17 26 21 17 28 50 GRS1915 22 53 03 33.1 612.0 3.6 44.4 -19 4215 No stop 17 32 20 --- 22 56 34 32.5 612.7 3.7 44.6 191 4269 17 28 51 17 33 00 J1905+0952 22 57 14 30.0 613.9 3.8 44.7 21 4269 17 33 00 17 34 50 =1903+097 22 59 04 29.6 614.2 3.9 44.9 110 4297 17 33 01 17 34 50 GRS1915 22 59 04 32.1 613.2 3.7 44.7 -19 4297 No stop 17 38 20 --- 23 02 35 31.5 613.9 3.8 45.0 191 4351 17 34 51 17 38 20 J1905+0952 23 02 35 29.0 614.9 3.9 45.0 -19 4351 No stop 17 40 50 =1903+097 23 05 05 28.6 615.4 4.0 45.2 131 4390 17 38 21 17 40 50 GRS1915 23 05 05 31.0 614.4 3.8 45.1 -19 4390 No stop 17 44 20 --- 23 08 36 30.4 615.1 3.9 45.3 191 4444 17 40 51 Schedule for ZELENCHK (Code Zc ) 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 45 00 J1905+0952 23 09 16 27.9 616.3 4.0 45.4 21 4444 17 45 00 17 46 50 =1903+097 23 11 06 27.5 616.6 4.1 45.5 110 4472 17 45 01 17 46 50 GRS1915 23 11 06 30.0 615.6 3.9 45.4 -19 4472 No stop 17 50 20 --- 23 14 37 29.4 616.3 4.0 45.6 191 4526 17 46 51 17 50 20 J1905+0952 23 14 37 26.9 617.3 4.1 45.6 -19 4526 No stop 17 52 50 =1903+097 23 17 07 26.5 617.8 4.2 45.7 131 4564 17 50 21 17 52 50 GRS1915 23 17 07 28.9 616.8 4.0 45.7 -19 4564 No stop 17 56 20 --- 23 20 38 28.3 617.5 4.1 45.9 191 4618 17 52 51 17 57 00 J1905+0952 23 21 18 25.8 618.6 4.2 45.9 21 4618 17 57 00 17 58 50 =1903+097 23 23 08 25.4 618.9 4.3 46.0 110 4646 17 57 01 17 58 50 J1913+0932 23 23 08 26.6 617.2 4.1 45.6 -17 4646 No stop 18 01 20 --- 23 25 39 26.1 617.7 4.2 45.7 133 4685 17 58 51 18 02 00 J1905+0952 23 26 19 24.9 619.5 4.3 46.1 23 4685 18 02 00 18 04 00 =1903+097 23 28 19 24.5 619.9 4.4 46.2 120 4715 18 02 01 18 04 00 GRS1915 23 28 19 26.9 619.0 4.2 46.2 -19 4715 No stop 18 07 30 --- 23 31 50 26.3 619.6 4.3 46.3 191 4769 18 04 01 18 07 30 J1905+0952 23 31 50 23.9 620.6 4.4 46.3 -19 4769 No stop 18 10 00 =1903+097 23 34 20 23.4 621.0 4.5 46.4 131 4808 18 07 31 18 10 00 GRS1915 23 34 20 25.9 620.1 4.3 46.4 -19 4808 No stop 18 13 30 --- 23 37 51 25.3 620.8 4.4 46.5 191 4862 18 10 01 18 14 10 J1905+0952 23 38 31 22.7 621.8 4.5 46.5 21 4862 18 14 10 18 16 10 =1903+097 23 40 31 22.3 622.2 4.6 46.6 120 4892 18 14 11 18 16 10 GRS1915 23 40 31 24.8 621.3 4.4 46.6 -19 4892 No stop 18 19 40 --- 23 44 02 24.1 621.9 4.5 46.7 191 4946 18 16 11 18 19 40 J1905+0952 23 44 02 21.7 622.8 4.6 46.6 -19 4946 No stop 18 22 10 =1903+097 23 46 32 21.3 623.3 4.7 46.7 131 4985 18 19 41 18 22 10 GRS1915 23 46 32 23.7 622.4 4.5 46.8 -19 4985 No stop 18 25 40 --- 23 50 03 23.1 623.0 4.6 46.9 191 5038 18 22 11 18 26 20 J1905+0952 23 50 43 20.5 624.0 4.7 46.8 21 5038 18 26 20 18 28 20 =1903+097 23 52 43 20.1 624.4 4.8 46.8 120 5069 18 26 21 Schedule for ZELENCHK (Code Zc ) 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 28 20 GRS1915 23 52 43 22.6 623.5 4.6 46.9 -19 5069 No stop 18 31 50 --- 23 56 14 22.0 624.1 4.7 47.0 191 5123 18 28 21 18 31 50 J1905+0952 23 56 14 19.5 625.0 4.8 46.9 -19 5123 No stop 18 34 20 =1903+097 23 58 44 19.1 625.5 4.9 46.9 131 5162 18 31 51 18 34 20 GRS1915 23 58 44 21.5 624.6 4.7 47.1 -19 5162 No stop 18 37 50 --- 00 02 15 20.9 625.2 4.8 47.1 191 5215 18 34 21 18 38 30 J1905+0952 00 02 55 18.3 626.2 4.9 47.0 21 5215 18 38 30 18 40 30 =1903+097 00 04 55 18.0 626.6 5.0 47.0 120 5246 18 38 31 18 40 30 GRS1915 00 04 55 20.4 625.7 4.8 47.2 -19 5246 No stop 18 44 00 --- 00 08 26 19.8 626.3 4.9 47.2 191 5300 18 40 31 18 44 00 J1905+0952 00 08 26 17.3 627.2 5.0 47.0 -19 5300 No stop 18 46 30 =1903+097 00 10 56 16.9 627.6 5.1 47.1 131 5338 18 44 01 18 46 30 GRS1915 00 10 56 19.3 626.8 4.9 47.2 -19 5338 No stop 18 50 00 --- 00 14 27 18.7 627.4 5.0 47.3 191 5392 18 46 31 18 50 40 J1905+0952 00 15 07 16.1 628.3 5.1 47.1 21 5392 18 50 40 18 52 40 =1903+097 00 17 07 15.8 628.7 5.2 47.1 120 5423 18 50 41 18 52 40 J1913+0932 00 17 07 16.9 627.1 5.0 47.0 -16 5423 No stop 18 55 10 --- 00 19 38 16.5 627.5 5.1 47.0 134 5462 18 52 41 18 55 50 J1905+0952 00 20 18 15.2 629.2 5.2 47.1 24 5462 18 55 50 18 57 50 =1903+097 00 22 18 14.8 629.6 5.3 47.1 120 5492 18 55 51 18 57 50 GRS1915 00 22 18 17.3 628.8 5.1 47.3 -19 5492 No stop 19 01 20 --- 00 25 49 16.6 629.4 5.2 47.3 191 5546 18 57 51 19 01 20 J1905+0952 00 25 49 14.2 630.2 5.3 47.1 -19 5546 No stop 19 03 50 =1903+097 00 28 19 13.7 630.6 5.4 47.1 131 5585 19 01 21 19 03 50 GRS1915 00 28 19 16.2 629.8 5.2 47.3 -19 5585 No stop 19 07 20 --- 00 31 50 15.5 630.4 5.3 47.3 191 5638 19 03 51 19 08 00 J1905+0952 00 32 30 13.0 631.4 5.4 47.1 21 5638 19 08 00 19 10 00 =1903+097 00 34 30 12.6 631.7 5.5 47.1 120 5669 19 08 01 19 10 00 GRS1915 00 34 30 15.1 630.9 5.3 47.3 -19 5669 No stop 19 13 30 --- 00 38 01 14.4 631.5 5.4 47.3 191 5723 19 10 01 Schedule for ZELENCHK (Code Zc ) 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 13 30 J1905+0952 00 38 01 12.0 632.3 5.5 47.1 -19 5723 No stop 19 16 00 =1903+097 00 40 31 11.5 632.7 5.6 47.1 131 5762 19 13 31 19 16 00 GRS1915 00 40 31 14.0 631.9 5.4 47.3 -19 5762 No stop 19 19 30 --- 00 44 02 13.3 632.5 5.5 47.3 191 5815 19 16 01 19 20 10 J1905+0952 00 44 42 10.8 633.4 5.6 47.0 21 5815 19 20 10 19 22 10 =1903+097 00 46 42 10.4 633.8 5.7 47.0 120 5846 19 20 11 19 22 10 GRS1915 00 46 42 12.9 633.0 5.5 47.3 -19 5846 No stop 19 25 40 --- 00 50 13 12.2 633.6 5.6 47.2 191 5900 19 22 11 19 28 10 GRS1915 00 52 43 11.8 634.0 5.6 47.2 144 5900 19 28 10 19 31 40 --- 00 56 14 11.2 634.6 5.7 47.1 210 5954 19 28 11 20 24 00 J2253+1608 01 48 42 44.2 607.0 2.9 43.8 3043 5954 20 24 00 20 30 00 =3C454.3 01 54 43 43.2 608.4 3.0 44.4 360 6046 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 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: kvzr_c Added by Des Small, 24 February 2012 Setup group: 2 Station: ZELENCHK Total bit rate: 2048 Format: MARK5B Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 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 = A B A B A B A B A B A B A B A B The following frequency sets based on these setups were used. Frequency Set: 11 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= 330.49 330.49 330.49 330.49 394.49 394.49 394.49 394.49 458.49 458.49 458.49 458.49 522.49 522.49 522.49 522.49 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: 11 12 19 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 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