COVER INFORMATION Station: ZELENCHK (Code Zc ) 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 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 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: 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 04 07 00 J1905+0952 17 45 48 51.8 506.6 -1.3 -23.8 0 0 04 07 00 04 09 30 =1903+097 17 48 18 52.1 507.5 -1.3 -23.2 150 38 04 07 01 04 09 30 GRS1915 17 48 18 52.1 503.3 -1.5 -26.1 -23 38 No stop 04 13 00 --- 17 51 49 52.5 504.6 -1.4 -25.2 187 92 04 09 31 04 13 00 J1905+0952 17 51 49 52.4 508.8 -1.2 -22.3 -24 92 No stop 04 15 30 =1903+097 17 54 19 52.7 509.7 -1.2 -21.7 126 131 04 13 01 04 15 30 GRS1915 17 54 19 52.7 505.5 -1.4 -24.6 -23 131 No stop 04 19 00 --- 17 57 50 53.1 506.8 -1.3 -23.8 187 185 04 15 31 04 19 40 J1905+0952 17 58 30 53.0 511.3 -1.1 -20.6 16 185 04 19 40 04 21 30 =1903+097 18 00 20 53.2 512.0 -1.1 -20.1 110 213 04 19 41 04 21 30 GRS1915 18 00 20 53.3 507.7 -1.3 -23.1 -23 213 No stop 04 25 00 --- 18 03 51 53.7 509.1 -1.2 -22.2 187 267 04 21 31 04 25 00 J1905+0952 18 03 51 53.5 513.4 -1.0 -19.2 -24 267 No stop 04 27 30 =1903+097 18 06 21 53.7 514.4 -1.0 -18.5 126 305 04 25 01 04 27 30 GRS1915 18 06 21 53.9 510.0 -1.2 -21.6 -23 305 No stop 04 31 00 --- 18 09 52 54.2 511.4 -1.1 -20.6 187 359 04 27 31 04 31 40 J1905+0952 18 10 32 54.0 516.0 -0.9 -17.3 16 359 04 31 40 04 33 30 =1903+097 18 12 22 54.1 516.8 -0.9 -16.8 110 387 04 31 41 04 33 30 GRS1915 18 12 22 54.4 512.4 -1.1 -19.9 -23 387 No stop 04 37 00 --- 18 15 53 54.7 513.8 -1.0 -19.0 187 441 04 33 31 04 37 00 J1905+0952 18 15 53 54.4 518.2 -0.8 -15.8 -24 441 No stop 04 39 30 =1903+097 18 18 23 54.5 519.2 -0.8 -15.1 126 479 04 37 01 04 39 30 GRS1915 18 18 23 54.9 514.8 -1.0 -18.2 -24 479 No stop 04 43 00 --- 18 21 54 55.2 516.2 -0.9 -17.2 186 533 04 39 31 04 43 40 J1905+0952 18 22 34 54.8 520.9 -0.7 -13.8 16 533 04 43 40 04 45 30 =1903+097 18 24 24 54.9 521.7 -0.7 -13.3 110 562 04 43 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 5 Mar 2021 Day 64 --- 04 45 30 GRS1915 18 24 24 55.3 517.3 -0.9 -16.5 -24 562 No stop 04 49 00 --- 18 27 55 55.6 518.7 -0.8 -15.5 186 615 04 45 31 04 49 00 J1905+0952 18 27 55 55.1 523.2 -0.6 -12.2 -24 615 No stop 04 51 30 =1903+097 18 30 25 55.2 524.2 -0.6 -11.5 126 654 04 49 01 04 51 30 GRS1915 18 30 25 55.7 519.8 -0.8 -14.7 -24 654 No stop 04 55 00 --- 18 33 56 55.9 521.3 -0.7 -13.7 186 708 04 51 31 04 55 40 J1905+0952 18 34 36 55.4 526.0 -0.5 -10.2 16 708 04 55 40 04 57 30 =1903+097 18 36 26 55.5 526.8 -0.5 -9.6 110 736 04 55 41 04 57 30 J1913+0932 18 36 26 54.8 523.6 -0.6 -11.9 -21 736 No stop 05 00 00 --- 18 38 56 54.9 524.7 -0.6 -11.2 129 774 04 57 31 05 00 40 J1905+0952 18 39 37 55.6 528.2 -0.5 -8.7 19 774 05 00 40 05 02 40 =1903+097 18 41 37 55.7 529.0 -0.4 -8.0 120 805 05 00 41 05 02 40 GRS1915 18 41 37 56.4 524.6 -0.6 -11.3 -24 805 No stop 05 06 10 --- 18 45 07 56.5 526.1 -0.5 -10.2 186 859 05 02 41 05 06 10 J1905+0952 18 45 07 55.8 530.5 -0.4 -6.9 -24 859 No stop 05 08 40 =1903+097 18 47 38 55.9 531.6 -0.3 -6.1 126 897 05 06 11 05 08 40 GRS1915 18 47 38 56.6 527.2 -0.5 -9.4 -24 897 No stop 05 12 10 --- 18 51 08 56.7 528.8 -0.4 -8.2 186 951 05 08 41 05 12 50 J1905+0952 18 51 49 56.0 533.5 -0.2 -4.8 16 951 05 12 50 05 14 40 =1903+097 18 53 39 56.0 534.3 -0.2 -4.2 110 979 05 12 51 05 14 40 GRS1915 18 53 39 56.8 529.9 -0.4 -7.4 -23 979 No stop 05 18 10 --- 18 57 09 56.9 531.4 -0.3 -6.3 187 1033 05 14 41 05 18 10 J1905+0952 18 57 09 56.0 535.8 -0.2 -3.1 -24 1033 No stop 05 20 40 =1903+097 18 59 40 56.1 536.9 -0.1 -2.3 126 1072 05 18 11 05 20 40 GRS1915 18 59 40 57.0 532.6 -0.3 -5.5 -23 1072 No stop 05 24 10 --- 19 03 10 57.1 534.1 -0.2 -4.3 187 1126 05 20 41 05 24 50 J1905+0952 19 03 50 56.1 538.8 -0.0 -0.9 16 1126 05 24 50 05 26 40 =1903+097 19 05 41 56.1 539.6 -0.0 -0.3 110 1154 05 24 51 05 26 40 GRS1915 19 05 41 57.1 535.3 -0.2 -3.5 -23 1154 No stop 05 30 10 --- 19 09 11 57.2 536.8 -0.1 -2.3 187 1208 05 26 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 5 Mar 2021 Day 64 --- 05 30 10 J1905+0952 19 09 11 56.1 541.1 0.0 0.8 -24 1208 No stop 05 32 40 =1903+097 19 11 42 56.1 542.2 0.1 1.6 126 1246 05 30 11 05 32 40 GRS1915 19 11 42 57.2 538.0 -0.1 -1.5 -23 1246 No stop 05 36 10 --- 19 15 12 57.2 539.6 -0.0 -0.3 187 1300 05 32 41 05 36 50 J1905+0952 19 15 52 56.1 544.1 0.2 3.0 16 1300 05 36 50 05 38 40 =1903+097 19 17 43 56.0 544.9 0.2 3.6 110 1328 05 36 51 05 38 40 GRS1915 19 17 43 57.2 540.7 0.0 0.5 -23 1328 No stop 05 42 10 --- 19 21 13 57.2 542.3 0.1 1.7 187 1382 05 38 41 05 42 10 J1905+0952 19 21 13 56.0 546.4 0.2 4.7 -23 1382 No stop 05 44 40 =1903+097 19 23 44 55.9 547.5 0.3 5.5 127 1421 05 42 11 05 44 40 GRS1915 19 23 44 57.2 543.4 0.1 2.5 -23 1421 No stop 05 48 10 --- 19 27 14 57.1 545.0 0.2 3.7 187 1474 05 44 41 05 48 50 J1905+0952 19 27 54 55.8 549.3 0.4 6.8 17 1474 05 48 50 05 50 40 =1903+097 19 29 45 55.7 550.1 0.4 7.4 110 1503 05 48 51 05 50 40 J1913+0932 19 29 45 55.6 546.7 0.3 4.9 -21 1503 No stop 05 53 10 --- 19 32 15 55.6 547.8 0.3 5.7 129 1541 05 50 41 05 53 50 J1905+0952 19 32 55 55.6 551.5 0.4 8.4 18 1541 05 53 50 05 55 50 =1903+097 19 34 56 55.6 552.4 0.5 9.0 120 1572 05 53 51 05 55 50 GRS1915 19 34 56 56.9 548.5 0.3 6.2 -22 1572 No stop 05 59 20 --- 19 38 26 56.8 550.0 0.4 7.4 188 1626 05 55 51 05 59 20 J1905+0952 19 38 26 55.4 553.9 0.5 10.1 -23 1626 No stop 06 01 50 =1903+097 19 40 57 55.3 555.0 0.6 10.9 127 1664 05 59 21 06 01 50 GRS1915 19 40 57 56.8 551.1 0.4 8.2 -22 1664 No stop 06 05 20 --- 19 44 27 56.6 552.7 0.5 9.3 188 1718 06 01 51 06 06 00 J1905+0952 19 45 07 55.1 556.7 0.6 12.2 17 1718 06 06 00 06 07 50 =1903+097 19 46 58 55.0 557.5 0.7 12.7 110 1746 06 06 01 06 07 50 GRS1915 19 46 58 56.5 553.8 0.5 10.1 -22 1746 No stop 06 11 20 --- 19 50 28 56.4 555.3 0.6 11.2 188 1800 06 07 51 06 11 20 J1905+0952 19 50 28 54.8 559.0 0.7 13.8 -22 1800 No stop 06 13 50 =1903+097 19 52 59 54.6 560.0 0.8 14.5 128 1838 06 11 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 5 Mar 2021 Day 64 --- 06 13 50 GRS1915 19 52 59 56.2 556.4 0.6 12.0 -22 1838 No stop 06 17 20 --- 19 56 29 56.1 557.9 0.7 13.1 188 1892 06 13 51 06 18 00 J1905+0952 19 57 09 54.4 561.7 0.8 15.7 18 1892 06 18 00 06 19 50 =1903+097 19 59 00 54.3 562.4 0.9 16.2 110 1921 06 18 01 06 19 50 GRS1915 19 59 00 55.9 559.0 0.7 13.8 -21 1921 No stop 06 23 20 --- 20 02 30 55.7 560.5 0.8 14.9 189 1974 06 19 51 06 23 20 J1905+0952 20 02 30 54.0 563.9 0.9 17.2 -22 1974 No stop 06 25 50 =1903+097 20 05 01 53.8 564.9 1.0 17.9 128 2013 06 23 21 06 25 50 GRS1915 20 05 01 55.5 561.5 0.8 15.7 -21 2013 No stop 06 29 20 --- 20 08 31 55.3 563.0 0.9 16.7 189 2067 06 25 51 06 30 00 J1905+0952 20 09 11 53.5 566.5 1.0 19.1 19 2067 06 30 00 06 31 50 =1903+097 20 11 01 53.3 567.2 1.1 19.6 110 2095 06 30 01 06 31 50 GRS1915 20 11 01 55.1 564.0 0.9 17.4 -21 2095 No stop 06 35 20 --- 20 14 32 54.8 565.4 1.0 18.4 189 2149 06 31 51 06 35 20 J1905+0952 20 14 32 53.0 568.6 1.1 20.5 -21 2149 No stop 06 37 50 =1903+097 20 17 02 52.8 569.5 1.2 21.2 129 2187 06 35 21 06 37 50 GRS1915 20 17 02 54.7 566.5 1.0 19.1 -20 2187 No stop 06 41 20 --- 20 20 33 54.4 567.8 1.1 20.1 190 2241 06 37 51 06 42 00 J1905+0952 20 21 13 52.4 571.1 1.2 22.3 19 2241 06 42 00 06 43 50 =1903+097 20 23 03 52.3 571.8 1.3 22.7 110 2269 06 42 01 06 43 50 J1913+0932 20 23 03 52.7 568.7 1.1 20.6 -20 2269 No stop 06 46 20 --- 20 25 34 52.5 569.6 1.2 21.2 130 2308 06 43 51 06 47 00 J1905+0952 20 26 14 52.0 573.0 1.3 23.5 19 2308 06 47 00 06 49 00 =1903+097 20 28 14 51.8 573.7 1.4 24.0 120 2338 06 47 01 06 49 00 GRS1915 20 28 14 53.7 570.8 1.2 22.1 -20 2338 No stop 06 52 30 --- 20 31 45 53.3 572.2 1.3 23.1 190 2392 06 49 01 06 52 30 J1905+0952 20 31 45 51.4 575.0 1.4 24.8 -20 2392 No stop 06 55 00 =1903+097 20 34 15 51.1 575.9 1.5 25.4 130 2431 06 52 31 06 55 00 GRS1915 20 34 15 53.1 573.1 1.3 23.7 -20 2431 No stop 06 58 30 --- 20 37 46 52.8 574.4 1.4 24.6 190 2485 06 55 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 5 Mar 2021 Day 64 --- 06 59 10 J1905+0952 20 38 26 50.7 577.3 1.5 26.4 20 2485 06 59 10 07 01 00 =1903+097 20 40 16 50.5 578.0 1.6 26.8 110 2513 06 59 11 07 01 00 GRS1915 20 40 16 52.5 575.3 1.4 25.2 -19 2513 No stop 07 04 30 --- 20 43 47 52.1 576.6 1.5 26.0 191 2567 07 01 01 07 04 30 J1905+0952 20 43 47 50.1 579.2 1.6 27.6 -20 2567 No stop 07 07 00 =1903+097 20 46 17 49.8 580.0 1.7 28.1 130 2605 07 04 31 07 07 00 GRS1915 20 46 17 51.8 577.5 1.5 26.6 -19 2605 No stop 07 10 30 --- 20 49 48 51.5 578.8 1.6 27.4 191 2659 07 07 01 07 11 10 J1905+0952 20 50 28 49.3 581.4 1.7 29.0 21 2659 07 11 10 07 13 00 =1903+097 20 52 18 49.1 582.0 1.8 29.4 110 2687 07 11 11 07 13 00 GRS1915 20 52 18 51.2 579.6 1.6 28.0 -19 2687 No stop 07 16 30 --- 20 55 49 50.8 580.8 1.7 28.7 191 2741 07 13 01 07 16 30 J1905+0952 20 55 49 48.7 583.2 1.8 30.1 -19 2741 No stop 07 19 00 =1903+097 20 58 19 48.4 584.0 1.9 30.6 131 2779 07 16 31 07 19 00 GRS1915 20 58 19 50.5 581.7 1.7 29.3 -18 2779 No stop 07 22 30 --- 21 01 50 50.0 582.8 1.8 30.0 192 2833 07 19 01 07 23 10 J1905+0952 21 02 30 47.8 585.3 1.9 31.4 21 2833 07 23 10 07 25 00 =1903+097 21 04 20 47.6 585.9 2.0 31.7 110 2862 07 23 11 07 25 00 GRS1915 21 04 20 49.7 583.7 1.8 30.5 -18 2862 No stop 07 28 30 --- 21 07 51 49.3 584.8 1.9 31.2 192 2915 07 25 01 07 28 30 J1905+0952 21 07 51 47.1 586.9 2.0 32.4 -18 2915 No stop 07 31 00 =1903+097 21 10 21 46.8 587.7 2.1 32.8 132 2954 07 28 31 07 31 00 GRS1915 21 10 21 49.0 585.6 1.9 31.7 -18 2954 No stop 07 34 30 --- 21 13 52 48.5 586.7 2.0 32.4 192 3008 07 31 01 07 35 10 J1905+0952 21 14 32 46.2 589.0 2.1 33.6 22 3008 07 35 10 07 37 00 =1903+097 21 16 22 46.0 589.5 2.2 33.9 110 3036 07 35 11 07 37 00 J1913+0932 21 16 22 46.8 586.9 2.0 32.3 -19 3036 No stop 07 39 30 --- 21 18 53 46.4 587.7 2.1 32.8 131 3074 07 37 01 07 40 00 J1800+3848 21 19 23 53.0 639.8 3.3 65.9 -47 3074 07 40 00 07 45 00 =1758+388 21 24 24 52.1 640.5 3.4 65.6 253 3151 07 40 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 5 Mar 2021 Day 64 --- 07 45 40 J1905+0952 21 25 04 44.8 592.0 2.3 35.3 -33 3151 07 45 40 07 47 40 =1903+097 21 27 04 44.5 592.6 2.3 35.6 87 3182 07 45 41 07 47 40 GRS1915 21 27 04 46.7 590.7 2.2 34.7 -18 3182 No stop 07 51 10 --- 21 30 35 46.2 591.8 2.2 35.3 192 3236 07 47 41 07 51 10 J1905+0952 21 30 35 44.0 593.5 2.4 36.1 -18 3236 No stop 07 53 40 =1903+097 21 33 05 43.6 594.2 2.4 36.5 132 3274 07 51 11 07 53 40 GRS1915 21 33 05 45.9 592.5 2.3 35.7 -18 3274 No stop 07 57 10 --- 21 36 36 45.4 593.5 2.3 36.2 192 3328 07 53 41 07 57 50 J1905+0952 21 37 16 43.0 595.4 2.5 37.1 21 3328 07 57 50 07 59 40 =1903+097 21 39 06 42.7 595.9 2.5 37.3 110 3356 07 57 51 07 59 40 GRS1915 21 39 06 45.0 594.2 2.4 36.6 -18 3356 No stop 08 03 10 --- 21 42 37 44.5 595.1 2.4 37.1 192 3410 07 59 41 08 03 10 J1905+0952 21 42 37 42.2 596.8 2.6 37.8 -19 3410 No stop 08 05 40 =1903+097 21 45 07 41.8 597.4 2.6 38.1 131 3449 08 03 11 08 05 40 GRS1915 21 45 07 44.1 595.8 2.5 37.5 -18 3449 No stop 08 09 10 --- 21 48 37 43.6 596.8 2.5 38.0 192 3503 08 05 41 08 09 50 J1905+0952 21 49 18 41.2 598.5 2.7 38.7 21 3503 08 09 50 08 11 40 =1903+097 21 51 08 40.9 599.0 2.7 38.9 110 3531 08 09 51 08 11 40 GRS1915 21 51 08 43.2 597.4 2.6 38.3 -18 3531 No stop 08 15 10 --- 21 54 38 42.7 598.4 2.6 38.8 192 3585 08 11 41 08 15 10 J1905+0952 21 54 38 40.4 599.9 2.8 39.3 -19 3585 No stop 08 17 40 =1903+097 21 57 09 40.0 600.5 2.8 39.6 131 3623 08 15 11 08 17 40 GRS1915 21 57 09 42.3 599.0 2.7 39.1 -19 3623 No stop 08 21 10 --- 22 00 39 41.7 599.9 2.7 39.5 191 3677 08 17 41 08 21 50 J1905+0952 22 01 20 39.3 601.5 2.9 40.1 21 3677 08 21 50 08 23 40 =1903+097 22 03 10 39.0 602.0 2.9 40.3 110 3705 08 21 51 08 23 40 GRS1915 22 03 10 41.3 600.5 2.8 39.8 -19 3705 No stop 08 27 10 --- 22 06 40 40.8 601.4 2.8 40.2 191 3759 08 23 41 08 27 10 J1905+0952 22 06 40 38.4 602.8 3.0 40.7 -19 3759 No stop 08 29 40 =1903+097 22 09 11 38.0 603.4 3.0 40.9 131 3797 08 27 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 5 Mar 2021 Day 64 --- 08 29 40 GRS1915 22 09 11 40.4 602.0 2.9 40.5 -19 3797 No stop 08 33 10 --- 22 12 41 39.8 602.9 2.9 40.9 191 3851 08 29 41 08 33 50 J1905+0952 22 13 22 37.4 604.4 3.1 41.4 21 3851 08 33 50 08 35 40 =1903+097 22 15 12 37.1 604.8 3.1 41.5 110 3879 08 33 51 08 35 40 J1913+0932 22 15 12 38.1 602.7 3.0 40.6 -18 3879 No stop 08 38 10 --- 22 17 42 37.7 603.3 3.1 40.9 132 3918 08 35 41 08 38 50 J1905+0952 22 18 22 36.5 605.5 3.2 41.8 22 3918 08 38 50 08 40 50 =1903+097 22 20 23 36.2 606.0 3.2 42.0 120 3949 08 38 51 08 40 50 GRS1915 22 20 23 38.6 604.7 3.1 41.7 -19 3949 No stop 08 44 20 --- 22 23 53 38.0 605.5 3.1 42.0 191 4003 08 40 51 08 44 20 J1905+0952 22 23 53 35.6 606.8 3.3 42.3 -19 4003 No stop 08 46 50 =1903+097 22 26 24 35.2 607.3 3.3 42.6 131 4041 08 44 21 08 46 50 GRS1915 22 26 24 37.6 606.1 3.2 42.2 -19 4041 No stop 08 50 20 --- 22 29 54 37.0 606.9 3.2 42.6 191 4095 08 46 51 08 51 00 J1905+0952 22 30 34 34.5 608.3 3.4 42.9 21 4095 08 51 00 08 52 50 =1903+097 22 32 25 34.2 608.7 3.4 43.0 110 4123 08 51 01 08 52 50 GRS1915 22 32 25 36.6 607.5 3.3 42.8 -19 4123 No stop 08 56 20 --- 22 35 55 36.0 608.3 3.3 43.1 191 4177 08 52 51 08 56 20 J1905+0952 22 35 55 33.6 609.4 3.5 43.3 -19 4177 No stop 08 58 50 =1903+097 22 38 26 33.2 610.0 3.5 43.5 131 4215 08 56 21 08 58 50 GRS1915 22 38 26 35.6 608.8 3.4 43.3 -19 4215 No stop 09 02 20 --- 22 41 56 35.0 609.6 3.4 43.6 191 4269 08 58 51 09 03 00 J1905+0952 22 42 36 32.5 610.9 3.6 43.8 21 4269 09 03 00 09 04 50 =1903+097 22 44 27 32.2 611.2 3.6 43.9 110 4297 09 03 01 09 04 50 GRS1915 22 44 27 34.6 610.1 3.5 43.8 -19 4297 No stop 09 08 20 --- 22 47 57 34.0 610.9 3.5 44.0 191 4351 09 04 51 09 08 20 J1905+0952 22 47 57 31.6 612.0 3.7 44.2 -19 4351 No stop 09 10 50 =1903+097 22 50 28 31.1 612.5 3.7 44.3 131 4390 09 08 21 09 10 50 GRS1915 22 50 28 33.5 611.4 3.6 44.2 -19 4390 No stop 09 14 20 --- 22 53 58 32.9 612.1 3.6 44.4 191 4444 09 10 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 5 Mar 2021 Day 64 --- 09 15 00 J1905+0952 22 54 38 30.4 613.3 3.8 44.6 21 4444 09 15 00 09 16 50 =1903+097 22 56 29 30.1 613.7 3.8 44.7 110 4472 09 15 01 09 16 50 GRS1915 22 56 29 32.5 612.7 3.7 44.6 -19 4472 No stop 09 20 20 --- 22 59 59 31.9 613.4 3.7 44.8 191 4526 09 16 51 09 20 20 J1905+0952 22 59 59 29.5 614.4 3.9 44.9 -19 4526 No stop 09 22 50 =1903+097 23 02 30 29.1 614.9 3.9 45.0 131 4564 09 20 21 09 22 50 GRS1915 23 02 30 31.5 613.9 3.8 45.0 -19 4564 No stop 09 26 20 --- 23 06 00 30.9 614.6 3.8 45.2 191 4618 09 22 51 09 27 00 J1905+0952 23 06 40 28.3 615.8 4.0 45.3 21 4618 09 27 00 09 28 50 =1903+097 23 08 31 28.0 616.1 4.0 45.3 110 4646 09 27 01 09 28 50 J1913+0932 23 08 31 29.1 614.3 3.9 44.8 -17 4646 No stop 09 31 20 --- 23 11 01 28.7 614.8 3.9 45.0 133 4685 09 28 51 09 32 00 J1905+0952 23 11 41 27.4 616.7 4.1 45.5 23 4685 09 32 00 09 34 00 =1903+097 23 13 41 27.1 617.1 4.1 45.6 120 4715 09 32 01 09 34 00 GRS1915 23 13 41 29.5 616.1 4.0 45.6 -19 4715 No stop 09 37 30 --- 23 17 12 28.9 616.8 4.0 45.7 191 4769 09 34 01 09 37 30 J1905+0952 23 17 12 26.5 617.8 4.2 45.7 -19 4769 No stop 09 40 00 =1903+097 23 19 42 26.0 618.3 4.2 45.9 131 4808 09 37 31 09 40 00 GRS1915 23 19 42 28.5 617.3 4.1 45.8 -19 4808 No stop 09 43 30 --- 23 23 13 27.8 618.0 4.1 46.0 191 4862 09 40 01 09 44 10 J1905+0952 23 23 53 25.3 619.1 4.3 46.0 21 4862 09 44 10 09 46 10 =1903+097 23 25 53 24.9 619.4 4.3 46.1 120 4892 09 44 11 09 46 10 GRS1915 23 25 53 27.4 618.5 4.2 46.1 -19 4892 No stop 09 49 40 --- 23 29 24 26.8 619.2 4.2 46.2 191 4946 09 46 11 09 49 40 J1905+0952 23 29 24 24.3 620.1 4.4 46.2 -19 4946 No stop 09 52 10 =1903+097 23 31 54 23.9 620.6 4.4 46.3 131 4985 09 49 41 09 52 10 GRS1915 23 31 54 26.3 619.7 4.3 46.3 -19 4985 No stop 09 55 40 --- 23 35 25 25.7 620.3 4.3 46.5 191 5038 09 52 11 09 56 20 J1905+0952 23 36 05 23.1 621.4 4.5 46.4 21 5038 09 56 20 09 58 20 =1903+097 23 38 05 22.8 621.7 4.5 46.5 120 5069 09 56 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 5 Mar 2021 Day 64 --- 09 58 20 GRS1915 23 38 05 25.2 620.8 4.4 46.5 -19 5069 No stop 10 01 50 --- 23 41 36 24.6 621.5 4.4 46.7 191 5123 09 58 21 10 01 50 J1905+0952 23 41 36 22.1 622.4 4.6 46.6 -19 5123 No stop 10 04 20 =1903+097 23 44 06 21.7 622.8 4.6 46.6 131 5162 10 01 51 10 04 20 GRS1915 23 44 06 24.1 621.9 4.5 46.7 -19 5162 No stop 10 07 50 --- 23 47 37 23.5 622.6 4.5 46.8 191 5215 10 04 21 10 08 30 J1905+0952 23 48 17 20.9 623.6 4.7 46.7 21 5215 10 08 30 10 10 30 =1903+097 23 50 17 20.6 623.9 4.7 46.8 120 5246 10 08 31 10 10 30 GRS1915 23 50 17 23.0 623.1 4.6 46.9 -19 5246 No stop 10 14 00 --- 23 53 48 22.4 623.7 4.6 47.0 191 5300 10 10 31 10 14 00 J1905+0952 23 53 48 20.0 624.6 4.8 46.8 -19 5300 No stop 10 16 30 =1903+097 23 56 18 19.5 625.0 4.8 46.9 131 5338 10 14 01 10 16 30 GRS1915 23 56 18 21.9 624.2 4.7 47.0 -19 5338 No stop 10 20 00 --- 23 59 49 21.3 624.8 4.7 47.1 191 5392 10 16 31 10 20 40 J1905+0952 00 00 29 18.7 625.8 4.9 47.0 21 5392 10 20 40 10 22 40 =1903+097 00 02 29 18.4 626.1 4.9 47.0 120 5423 10 20 41 10 22 40 J1913+0932 00 02 29 19.6 624.5 4.8 46.8 -16 5423 No stop 10 25 10 --- 00 05 00 19.1 624.9 4.8 46.8 134 5462 10 22 41 10 25 50 J1905+0952 00 05 40 17.8 626.7 5.0 47.0 23 5462 10 25 50 10 27 50 =1903+097 00 07 40 17.5 627.0 5.0 47.0 120 5492 10 25 51 10 27 50 GRS1915 00 07 40 19.9 626.2 4.9 47.2 -19 5492 No stop 10 31 20 --- 00 11 11 19.3 626.8 4.9 47.2 191 5546 10 27 51 10 31 20 J1905+0952 00 11 11 16.8 627.6 5.1 47.1 -19 5546 No stop 10 33 50 =1903+097 00 13 41 16.4 628.1 5.1 47.1 131 5585 10 31 21 10 33 50 GRS1915 00 13 41 18.8 627.3 5.0 47.3 -19 5585 No stop 10 37 20 --- 00 17 12 18.2 627.9 5.0 47.3 191 5638 10 33 51 10 38 00 J1905+0952 00 17 52 15.6 628.8 5.2 47.1 21 5638 10 38 00 10 40 00 =1903+097 00 19 52 15.3 629.2 5.2 47.1 120 5669 10 38 01 10 40 00 GRS1915 00 19 52 17.7 628.3 5.1 47.3 -19 5669 No stop 10 43 30 --- 00 23 23 17.1 628.9 5.1 47.3 191 5723 10 40 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 5 Mar 2021 Day 64 --- 10 43 30 J1905+0952 00 23 23 14.6 629.8 5.3 47.1 -19 5723 No stop 10 46 00 =1903+097 00 25 53 14.2 630.2 5.3 47.1 131 5762 10 43 31 10 46 00 GRS1915 00 25 53 16.6 629.4 5.2 47.3 -19 5762 No stop 10 49 30 --- 00 29 24 16.0 630.0 5.2 47.3 191 5815 10 46 01 10 50 10 J1905+0952 00 30 04 13.4 630.9 5.4 47.1 21 5815 10 50 10 10 52 10 =1903+097 00 32 04 13.1 631.3 5.4 47.1 120 5846 10 50 11 10 52 10 GRS1915 00 32 04 15.5 630.5 5.3 47.3 -19 5846 No stop 10 55 40 --- 00 35 35 14.9 631.1 5.3 47.3 191 5900 10 52 11 10 55 40 J1905+0952 00 35 35 12.4 631.9 5.5 47.1 -19 5900 No stop 10 58 10 =1903+097 00 38 05 12.0 632.3 5.5 47.1 131 5938 10 55 41 10 58 10 GRS1915 00 38 05 14.4 631.5 5.4 47.3 -19 5938 No stop 11 01 40 --- 00 41 36 13.8 632.1 5.4 47.3 191 5992 10 58 11 11 02 20 J1905+0952 00 42 16 11.2 633.0 5.6 47.0 21 5992 11 02 20 11 04 20 =1903+097 00 44 16 10.9 633.4 5.6 47.0 120 6023 11 02 21 11 04 20 J1913+0932 00 44 16 12.0 631.8 5.5 47.0 -16 6023 No stop 11 06 50 --- 00 46 47 11.6 632.2 5.5 47.0 134 6062 11 04 21 11 07 30 J1905+0952 00 47 27 10.3 633.9 5.7 47.0 24 6062 11 07 30 11 09 30 =1903+097 00 49 27 9.9 634.3 5.7 D 47.0 0 6092 11 07 31 11 09 30 GRS1915 00 49 27 12.4 633.4 5.6 47.2 -19 6092 No stop 11 13 00 --- 00 52 58 11.7 634.0 5.6 47.2 191 6146 11 09 31 11 15 30 GRS1915 00 55 28 11.3 634.5 5.7 47.2 144 6146 11 15 30 11 19 00 --- 00 58 59 10.7 635.1 5.7 47.1 210 6200 11 15 31 11 21 40 GRS1915 01 01 39 10.2 635.5 5.8 47.1 154 6200 11 21 40 11 25 10 --- 01 05 10 9.5 636.1 5.8 D 47.0 0 6254 11 21 41 11 54 00 J2253+1608 01 34 04 46.6 603.3 2.7 42.2 1633 6254 11 54 00 12 00 00 =3C454.3 01 40 05 45.6 604.9 2.8 42.9 360 6346 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 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 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