COVER INFORMATION Station: IRBENE (Code Ir ) 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 IRBENE (Code Ir ) 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: 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 12 30 00 J1800+3848 16 34 34 66.6-226.2 -1.4 -29.8 0 0 12 30 00 12 35 00 =1758+388 16 39 35 67.0-224.1 -1.4 -28.6 300 77 12 30 01 12 37 00 J1905+0952 16 41 35 34.8-225.2 -2.4 -22.7 101 77 12 37 00 12 39 30 =1903+097 16 44 05 35.1-224.5 -2.4 -22.5 150 116 12 37 01 12 39 30 GRS1915 16 44 05 35.2-227.7 -2.5 -23.8 -5 116 No stop 12 43 00 --- 16 47 36 35.5-226.7 -2.5 -23.4 205 170 12 39 31 12 43 00 J1905+0952 16 47 36 35.4-223.6 -2.3 -22.0 -5 170 No stop 12 45 30 =1903+097 16 50 06 35.6-222.8 -2.3 -21.7 145 209 12 43 01 12 45 30 GRS1915 16 50 06 35.7-226.0 -2.4 -23.2 -5 209 No stop 12 49 00 --- 16 53 37 36.1-225.0 -2.4 -22.8 205 263 12 45 31 12 49 40 J1905+0952 16 54 17 36.0-221.7 -2.2 -21.2 35 263 12 49 40 12 51 30 =1903+097 16 56 07 36.2-221.1 -2.2 -21.0 110 291 12 49 41 12 51 30 GRS1915 16 56 07 36.3-224.3 -2.3 -22.5 -5 291 No stop 12 55 00 --- 16 59 38 36.6-223.3 -2.3 -22.0 205 345 12 51 31 12 55 00 J1905+0952 16 59 38 36.5-220.1 -2.1 -20.6 -5 345 No stop 12 57 30 =1903+097 17 02 08 36.7-219.4 -2.1 -20.2 145 384 12 55 01 12 57 30 GRS1915 17 02 08 36.9-222.6 -2.2 -21.7 -5 384 No stop 13 01 00 --- 17 05 39 37.2-221.6 -2.2 -21.3 205 438 12 57 31 13 01 40 J1905+0952 17 06 19 37.0-218.2 -2.0 -19.7 35 438 13 01 40 13 03 30 =1903+097 17 08 09 37.2-217.7 -2.0 -19.4 110 466 13 01 41 13 03 30 GRS1915 17 08 09 37.4-220.9 -2.1 -21.0 -5 466 No stop 13 07 00 --- 17 11 40 37.7-219.9 -2.1 -20.5 205 520 13 03 31 13 07 00 J1905+0952 17 11 40 37.5-216.7 -1.9 -19.0 -5 520 No stop 13 09 30 =1903+097 17 14 10 37.7-215.9 -1.9 -18.6 145 559 13 07 01 13 09 30 GRS1915 17 14 10 37.9-219.2 -2.0 -20.2 -5 559 No stop 13 13 00 --- 17 17 41 38.2-218.1 -2.0 -19.7 205 613 13 09 31 Schedule for IRBENE (Code Ir ) Page 3 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 13 13 40 J1905+0952 17 18 21 38.0-214.7 -1.8 -18.1 35 613 13 13 40 13 15 30 =1903+097 17 20 11 38.1-214.1 -1.8 -17.8 110 642 13 13 41 13 15 30 GRS1915 17 20 11 38.4-217.4 -1.9 -19.4 -5 642 No stop 13 19 00 --- 17 23 42 38.7-216.4 -1.9 -18.9 205 696 13 15 31 13 19 00 J1905+0952 17 23 42 38.4-213.1 -1.7 -17.3 -5 696 No stop 13 21 30 =1903+097 17 26 12 38.6-212.3 -1.7 -16.9 145 734 13 19 01 13 21 30 GRS1915 17 26 12 38.9-215.6 -1.8 -18.6 -5 734 No stop 13 25 00 --- 17 29 43 39.2-214.6 -1.8 -18.1 205 788 13 21 31 13 25 40 J1905+0952 17 30 23 38.9-211.1 -1.6 -16.3 35 788 13 25 40 13 27 30 =1903+097 17 32 13 39.0-210.5 -1.6 -16.0 110 817 13 25 41 13 27 30 J1913+0932 17 32 13 38.2-212.7 -1.7 -17.1 -4 817 No stop 13 30 00 --- 17 34 44 38.3-212.0 -1.7 -16.7 146 855 13 27 31 13 30 40 J1905+0952 17 35 24 39.2-209.5 -1.5 -15.6 36 855 13 30 40 13 32 40 =1903+097 17 37 24 39.4-208.9 -1.5 -15.3 120 886 13 30 41 13 32 40 GRS1915 17 37 24 39.7-212.2 -1.6 -16.9 -5 886 No stop 13 36 10 --- 17 40 55 40.0-211.1 -1.6 -16.4 205 940 13 32 41 13 36 10 J1905+0952 17 40 55 39.6-207.8 -1.4 -14.7 -5 940 No stop 13 38 40 =1903+097 17 43 25 39.7-207.1 -1.4 -14.3 145 979 13 36 11 13 38 40 GRS1915 17 43 25 40.2-210.4 -1.5 -16.0 -5 979 No stop 13 42 10 --- 17 46 56 40.4-209.3 -1.5 -15.5 205 1033 13 38 41 13 42 50 J1905+0952 17 47 36 40.0-205.8 -1.3 -13.7 35 1033 13 42 50 13 44 40 =1903+097 17 49 26 40.1-205.2 -1.3 -13.4 110 1061 13 42 51 13 44 40 GRS1915 17 49 26 40.6-208.5 -1.4 -15.1 -5 1061 No stop 13 48 10 --- 17 52 57 40.8-207.4 -1.4 -14.6 205 1116 13 44 41 13 48 10 J1905+0952 17 52 57 40.3-204.1 -1.2 -12.8 -5 1116 No stop 13 50 40 =1903+097 17 55 27 40.4-203.3 -1.2 -12.4 145 1154 13 48 11 13 50 40 GRS1915 17 55 27 40.9-206.6 -1.3 -14.2 -5 1154 No stop 13 54 10 --- 17 58 58 41.1-205.5 -1.3 -13.6 205 1208 13 50 41 13 54 50 J1905+0952 17 59 38 40.6-202.0 -1.1 -11.8 35 1208 13 54 50 13 56 40 =1903+097 18 01 28 40.7-201.4 -1.1 -11.5 110 1237 13 54 51 Schedule for IRBENE (Code Ir ) Page 4 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 13 56 40 GRS1915 18 01 28 41.3-204.7 -1.2 -13.2 -5 1237 No stop 14 00 10 --- 18 04 59 41.5-203.6 -1.2 -12.6 205 1291 13 56 41 14 00 10 J1905+0952 18 04 59 40.9-200.3 -1.0 -10.9 -5 1291 No stop 14 02 40 =1903+097 18 07 29 41.0-199.5 -1.0 -10.5 145 1329 14 00 11 14 02 40 GRS1915 18 07 29 41.6-202.8 -1.1 -12.2 -5 1329 No stop 14 06 10 --- 18 11 00 41.8-201.7 -1.1 -11.6 205 1384 14 02 41 14 06 50 J1905+0952 18 11 40 41.2-198.1 -0.9 -9.7 35 1384 14 06 50 14 08 40 =1903+097 18 13 30 41.3-197.5 -0.9 -9.4 110 1412 14 06 51 14 08 40 GRS1915 18 13 30 41.9-200.9 -1.0 -11.2 -5 1412 No stop 14 12 10 --- 18 17 01 42.1-199.7 -1.0 -10.6 205 1466 14 08 41 14 12 10 J1905+0952 18 17 01 41.4-196.4 -0.8 -8.8 -5 1466 No stop 14 14 40 =1903+097 18 19 31 41.5-195.6 -0.8 -8.4 145 1505 14 12 11 14 14 40 GRS1915 18 19 31 42.2-198.9 -0.9 -10.2 -5 1505 No stop 14 18 10 --- 18 23 02 42.3-197.8 -0.9 -9.6 205 1559 14 14 41 14 18 50 J1905+0952 18 23 42 41.6-194.2 -0.7 -7.7 35 1559 14 18 50 14 20 40 =1903+097 18 25 32 41.7-193.6 -0.7 -7.4 110 1587 14 18 51 14 20 40 J1913+0932 18 25 32 41.1-196.1 -0.8 -8.7 -4 1587 No stop 14 23 10 --- 18 28 02 41.2-195.3 -0.8 -8.2 146 1626 14 20 41 14 23 50 J1905+0952 18 28 43 41.8-192.6 -0.6 -6.8 36 1626 14 23 50 14 25 50 =1903+097 18 30 43 41.9-191.9 -0.6 -6.5 120 1657 14 23 51 14 25 50 GRS1915 18 30 43 42.6-195.2 -0.8 -8.3 -5 1657 No stop 14 29 20 --- 18 34 13 42.7-194.1 -0.7 -7.6 205 1711 14 25 51 14 29 20 J1905+0952 18 34 13 41.9-190.8 -0.5 -5.8 -5 1711 No stop 14 31 50 =1903+097 18 36 44 42.0-189.9 -0.5 -5.4 145 1749 14 29 21 14 31 50 GRS1915 18 36 44 42.8-193.2 -0.7 -7.2 -5 1749 No stop 14 35 20 --- 18 40 14 42.9-192.1 -0.6 -6.6 205 1803 14 31 51 14 36 00 J1905+0952 18 40 55 42.1-188.5 -0.4 -4.6 35 1803 14 36 00 14 37 50 =1903+097 18 42 45 42.1-187.9 -0.4 -4.3 110 1832 14 36 01 14 37 50 GRS1915 18 42 45 43.0-191.2 -0.6 -6.1 -5 1832 No stop 14 41 20 --- 18 46 15 43.1-190.1 -0.5 -5.5 205 1886 14 37 51 Schedule for IRBENE (Code Ir ) Page 5 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 14 41 20 J1905+0952 18 46 15 42.2-186.8 -0.3 -3.7 -5 1886 No stop 14 43 50 =1903+097 18 48 46 42.2-185.9 -0.3 -3.2 145 1925 14 41 21 14 43 50 GRS1915 18 48 46 43.1-189.2 -0.5 -5.0 -5 1925 No stop 14 47 20 --- 18 52 16 43.2-188.1 -0.4 -4.4 205 1979 14 43 51 14 48 00 J1905+0952 18 52 57 42.3-184.6 -0.2 -2.5 35 1979 14 48 00 14 49 50 =1903+097 18 54 47 42.3-183.9 -0.2 -2.1 110 2007 14 48 01 14 49 50 GRS1915 18 54 47 43.3-187.2 -0.4 -3.9 -5 2007 No stop 14 53 20 --- 18 58 17 43.3-186.0 -0.3 -3.3 205 2061 14 49 51 14 53 20 J1905+0952 18 58 17 42.3-182.8 -0.1 -1.5 -5 2061 No stop 14 55 50 =1903+097 19 00 48 42.3-181.9 -0.1 -1.1 145 2100 14 53 21 14 55 50 GRS1915 19 00 48 43.3-185.2 -0.3 -2.8 -5 2100 No stop 14 59 20 --- 19 04 18 43.4-184.0 -0.2 -2.2 205 2154 14 55 51 15 00 00 J1905+0952 19 04 59 42.3-180.6 -0.0 -0.3 35 2154 15 00 00 15 01 50 =1903+097 19 06 49 42.4-179.9 0.0 0.0 110 2182 15 00 01 15 01 50 GRS1915 19 06 49 43.4-183.2 -0.2 -1.7 -5 2182 No stop 15 05 20 --- 19 10 19 43.4-182.0 -0.1 -1.1 205 2236 15 01 51 15 05 20 J1905+0952 19 10 19 42.3-178.8 0.1 0.7 -5 2236 No stop 15 07 50 =1903+097 19 12 50 42.3-177.9 0.1 1.1 145 2275 15 05 21 15 07 50 GRS1915 19 12 50 43.4-181.1 -0.1 -0.6 -5 2275 No stop 15 11 20 --- 19 16 20 43.4-179.9 0.0 0.0 205 2329 15 07 51 15 12 00 J1905+0952 19 17 00 42.3-176.5 0.2 1.9 35 2329 15 12 00 15 13 50 =1903+097 19 18 51 42.3-175.9 0.2 2.2 110 2357 15 12 01 15 13 50 J1913+0932 19 18 51 42.0-178.5 0.1 0.8 -4 2357 No stop 15 16 20 --- 19 21 21 42.0-177.7 0.1 1.3 146 2396 15 13 51 15 17 00 J1905+0952 19 22 01 42.3-174.9 0.3 2.8 36 2396 15 17 00 15 19 00 =1903+097 19 24 02 42.2-174.2 0.3 3.2 120 2427 15 17 01 15 19 00 GRS1915 19 24 02 43.4-177.3 0.1 1.5 -5 2427 No stop 15 22 30 --- 19 27 32 43.4-176.2 0.2 2.1 205 2481 15 19 01 15 22 30 J1905+0952 19 27 32 42.2-173.0 0.3 3.8 -5 2481 No stop 15 25 00 =1903+097 19 30 03 42.1-172.2 0.4 4.2 145 2520 15 22 31 Schedule for IRBENE (Code Ir ) Page 6 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 15 25 00 GRS1915 19 30 03 43.4-175.3 0.2 2.6 -5 2520 No stop 15 28 30 --- 19 33 33 43.3-174.1 0.3 3.2 205 2574 15 25 01 15 29 10 J1905+0952 19 34 13 42.1-170.8 0.5 5.0 35 2574 15 29 10 15 31 00 =1903+097 19 36 04 42.0-170.2 0.5 5.3 110 2602 15 29 11 15 31 00 GRS1915 19 36 04 43.3-173.3 0.3 3.7 -5 2602 No stop 15 34 30 --- 19 39 34 43.2-172.1 0.4 4.3 205 2656 15 31 01 15 34 30 J1905+0952 19 39 34 41.9-169.1 0.5 5.9 -5 2656 No stop 15 37 00 =1903+097 19 42 05 41.9-168.2 0.6 6.4 145 2695 15 34 31 15 37 00 GRS1915 19 42 05 43.2-171.3 0.4 4.8 -5 2695 No stop 15 40 30 --- 19 45 35 43.1-170.1 0.5 5.4 205 2749 15 37 01 15 41 10 J1905+0952 19 46 15 41.7-166.9 0.7 7.1 35 2749 15 41 10 15 43 00 =1903+097 19 48 06 41.7-166.3 0.7 7.4 110 2777 15 41 11 15 43 00 GRS1915 19 48 06 43.0-169.2 0.5 5.9 -4 2777 No stop 15 46 30 --- 19 51 36 42.9-168.1 0.6 6.5 206 2831 15 43 01 15 46 30 J1905+0952 19 51 36 41.6-165.1 0.7 8.0 -4 2831 No stop 15 49 00 =1903+097 19 54 07 41.5-164.3 0.8 8.5 146 2870 15 46 31 15 49 00 GRS1915 19 54 07 42.9-167.2 0.6 6.9 -4 2870 No stop 15 52 30 --- 19 57 37 42.8-166.1 0.7 7.6 206 2924 15 49 01 15 53 10 J1905+0952 19 58 17 41.3-163.0 0.9 9.2 36 2924 15 53 10 15 55 00 =1903+097 20 00 08 41.2-162.4 0.9 9.5 110 2953 15 53 11 15 55 00 GRS1915 20 00 08 42.7-165.2 0.7 8.0 -4 2953 No stop 15 58 30 --- 20 03 38 42.5-164.1 0.8 8.6 206 3007 15 55 01 15 58 30 J1905+0952 20 03 38 41.1-161.2 1.0 10.1 -4 3007 No stop 16 01 00 =1903+097 20 06 09 41.0-160.4 1.0 10.5 146 3045 15 58 31 16 01 00 GRS1915 20 06 09 42.5-163.3 0.8 9.1 -4 3045 No stop 16 04 30 --- 20 09 39 42.3-162.1 0.9 9.7 206 3099 16 01 01 16 05 10 J1905+0952 20 10 19 40.8-159.1 1.1 11.2 36 3099 16 05 10 16 07 00 =1903+097 20 12 10 40.7-158.5 1.1 11.5 110 3128 16 05 11 16 07 00 J1913+0932 20 12 10 40.8-161.0 1.0 10.2 -4 3128 No stop 16 09 30 --- 20 14 40 40.6-160.2 1.0 10.6 146 3166 16 07 01 Schedule for IRBENE (Code Ir ) Page 7 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 16 10 00 J1800+3848 20 15 10 61.3-116.2 2.2 38.1 5 3166 16 10 00 16 15 00 =1758+388 20 20 11 60.7-114.6 2.3 38.7 300 3244 16 10 01 16 15 40 J1905+0952 20 20 51 40.3-155.7 1.2 12.9 16 3244 16 15 40 16 17 40 =1903+097 20 22 51 40.1-155.1 1.3 13.2 120 3275 16 15 41 16 17 40 GRS1915 20 22 51 41.7-157.8 1.1 11.9 -4 3275 No stop 16 21 10 --- 20 26 22 41.5-156.7 1.2 12.5 206 3329 16 17 41 16 21 10 J1905+0952 20 26 22 39.9-154.0 1.3 13.8 -4 3329 No stop 16 23 40 =1903+097 20 28 52 39.8-153.2 1.4 14.2 146 3367 16 21 11 16 23 40 GRS1915 20 28 52 41.4-155.9 1.2 12.9 -4 3367 No stop 16 27 10 --- 20 32 23 41.2-154.8 1.3 13.5 206 3421 16 23 41 16 27 50 J1905+0952 20 33 03 39.5-151.9 1.4 14.8 36 3421 16 27 50 16 29 40 =1903+097 20 34 53 39.4-151.4 1.5 15.1 110 3450 16 27 51 16 29 40 GRS1915 20 34 53 41.0-154.0 1.3 13.9 -4 3450 No stop 16 33 10 --- 20 38 24 40.8-152.9 1.4 14.4 206 3504 16 29 41 16 33 10 J1905+0952 20 38 24 39.2-150.3 1.5 15.7 -4 3504 No stop 16 35 40 =1903+097 20 40 54 39.0-149.5 1.6 16.0 146 3543 16 33 11 16 35 40 GRS1915 20 40 54 40.7-152.1 1.4 14.8 -4 3543 No stop 16 39 10 --- 20 44 25 40.5-151.0 1.5 15.4 206 3597 16 35 41 16 39 50 J1905+0952 20 45 05 38.7-148.3 1.6 16.6 36 3597 16 39 50 16 41 40 =1903+097 20 46 55 38.6-147.7 1.7 16.9 110 3625 16 39 51 16 41 40 GRS1915 20 46 55 40.3-150.2 1.5 15.7 -4 3625 No stop 16 45 10 --- 20 50 26 40.1-149.1 1.6 16.3 206 3679 16 41 41 16 45 10 J1905+0952 20 50 26 38.3-146.7 1.7 17.4 -4 3679 No stop 16 47 40 =1903+097 20 52 56 38.2-145.9 1.8 17.8 146 3718 16 45 11 16 47 40 GRS1915 20 52 56 39.9-148.4 1.6 16.7 -4 3718 No stop 16 51 10 --- 20 56 27 39.6-147.3 1.7 17.2 206 3772 16 47 41 16 51 50 J1905+0952 20 57 07 37.8-144.7 1.8 18.4 36 3772 16 51 50 16 53 40 =1903+097 20 58 57 37.7-144.1 1.9 18.6 110 3800 16 51 51 16 53 40 GRS1915 20 58 57 39.4-146.5 1.7 17.5 -4 3800 No stop 16 57 10 --- 21 02 28 39.2-145.5 1.8 18.0 206 3854 16 53 41 Schedule for IRBENE (Code Ir ) Page 8 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 16 57 10 J1905+0952 21 02 28 37.4-143.1 1.9 19.1 -4 3854 No stop 16 59 40 =1903+097 21 04 58 37.2-142.4 2.0 19.4 146 3893 16 57 11 16 59 40 GRS1915 21 04 58 39.0-144.7 1.8 18.4 -4 3893 No stop 17 03 10 --- 21 08 29 38.7-143.7 1.9 18.9 206 3947 16 59 41 17 03 50 J1905+0952 21 09 09 36.9-141.1 2.0 20.0 36 3947 17 03 50 17 05 40 =1903+097 21 10 59 36.7-140.6 2.1 20.2 110 3975 17 03 51 17 05 40 J1913+0932 21 10 59 37.0-143.0 1.9 19.1 -4 3975 No stop 17 08 10 --- 21 13 30 36.8-142.3 2.0 19.5 146 4014 17 05 41 17 08 50 J1905+0952 21 14 10 36.4-139.7 2.1 20.6 36 4014 17 08 50 17 10 50 =1903+097 21 16 10 36.3-139.1 2.2 20.9 120 4045 17 08 51 17 10 50 GRS1915 21 16 10 38.1-141.4 2.0 19.9 -4 4045 No stop 17 14 20 --- 21 19 41 37.8-140.4 2.1 20.4 206 4099 17 10 51 17 14 20 J1905+0952 21 19 41 35.9-138.1 2.2 21.3 -4 4099 No stop 17 16 50 =1903+097 21 22 11 35.7-137.4 2.3 21.6 146 4138 17 14 21 17 16 50 GRS1915 21 22 11 37.6-139.7 2.1 20.7 -4 4138 No stop 17 20 20 --- 21 25 42 37.3-138.6 2.2 21.2 206 4192 17 16 51 17 21 00 J1905+0952 21 26 22 35.3-136.2 2.3 22.1 36 4192 17 21 00 17 22 50 =1903+097 21 28 12 35.2-135.7 2.4 22.3 110 4220 17 21 01 17 22 50 GRS1915 21 28 12 37.0-137.9 2.2 21.5 -4 4220 No stop 17 26 20 --- 21 31 43 36.7-136.9 2.3 21.9 206 4274 17 22 51 17 26 20 J1905+0952 21 31 43 34.8-134.8 2.4 22.7 -4 4274 No stop 17 28 50 =1903+097 21 34 13 34.6-134.1 2.5 23.0 146 4313 17 26 21 17 28 50 GRS1915 21 34 13 36.5-136.2 2.3 22.2 -4 4313 No stop 17 32 20 --- 21 37 44 36.2-135.2 2.4 22.6 206 4367 17 28 51 17 33 00 J1905+0952 21 38 24 34.2-132.9 2.5 23.5 36 4367 17 33 00 17 34 50 =1903+097 21 40 14 34.0-132.4 2.6 23.7 110 4395 17 33 01 17 34 50 GRS1915 21 40 14 35.9-134.5 2.4 22.9 -4 4395 No stop 17 38 20 --- 21 43 45 35.6-133.5 2.5 23.3 206 4449 17 34 51 17 38 20 J1905+0952 21 43 45 33.7-131.5 2.6 24.1 -4 4449 No stop 17 40 50 =1903+097 21 46 15 33.4-130.8 2.7 24.3 146 4488 17 38 21 Schedule for IRBENE (Code Ir ) Page 9 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 17 40 50 GRS1915 21 46 15 35.3-132.9 2.5 23.6 -4 4488 No stop 17 44 20 --- 21 49 46 35.0-131.9 2.6 24.0 206 4542 17 40 51 17 45 00 J1905+0952 21 50 26 33.0-129.7 2.7 24.8 36 4542 17 45 00 17 46 50 =1903+097 21 52 16 32.8-129.2 2.8 25.0 110 4571 17 45 01 17 46 50 GRS1915 21 52 16 34.7-131.2 2.6 24.3 -4 4571 No stop 17 50 20 --- 21 55 46 34.4-130.3 2.7 24.7 206 4625 17 46 51 17 50 20 J1905+0952 21 55 46 32.4-128.3 2.8 25.3 -4 4625 No stop 17 52 50 =1903+097 21 58 17 32.2-127.6 2.9 25.6 146 4663 17 50 21 17 52 50 GRS1915 21 58 17 34.1-129.6 2.7 24.9 -4 4663 No stop 17 56 20 --- 22 01 47 33.8-128.6 2.8 25.3 206 4717 17 52 51 17 57 00 J1905+0952 22 02 28 31.7-126.5 2.9 26.0 36 4717 17 57 00 17 58 50 =1903+097 22 04 18 31.5-126.0 3.0 26.1 110 4746 17 57 01 17 58 50 J1913+0932 22 04 18 32.0-128.2 2.8 25.3 -4 4746 No stop 18 01 20 --- 22 06 48 31.8-127.6 2.9 25.6 146 4784 17 58 51 18 02 00 J1905+0952 22 07 28 31.2-125.2 3.0 26.4 36 4784 18 02 00 18 04 00 =1903+097 22 09 29 30.9-124.7 3.0 26.6 120 4815 18 02 01 18 04 00 GRS1915 22 09 29 32.9-126.6 2.9 26.0 -4 4815 No stop 18 07 30 --- 22 12 59 32.6-125.7 2.9 26.4 206 4869 18 04 01 18 07 30 J1905+0952 22 12 59 30.6-123.8 3.1 26.9 -4 4869 No stop 18 10 00 =1903+097 22 15 30 30.3-123.2 3.1 27.1 146 4908 18 07 31 18 10 00 GRS1915 22 15 30 32.3-125.0 3.0 26.6 -4 4908 No stop 18 13 30 --- 22 19 00 31.9-124.1 3.0 26.9 206 4962 18 10 01 18 14 10 J1905+0952 22 19 40 29.8-122.1 3.2 27.5 36 4962 18 14 10 18 16 10 =1903+097 22 21 41 29.6-121.6 3.3 27.6 120 4993 18 14 11 18 16 10 GRS1915 22 21 41 31.6-123.4 3.1 27.1 -4 4993 No stop 18 19 40 --- 22 25 11 31.2-122.5 3.2 27.4 206 5047 18 16 11 18 19 40 J1905+0952 22 25 11 29.2-120.7 3.3 27.9 -4 5047 No stop 18 22 10 =1903+097 22 27 42 28.9-120.1 3.4 28.1 146 5086 18 19 41 18 22 10 GRS1915 22 27 42 30.9-121.9 3.2 27.6 -4 5086 No stop 18 25 40 --- 22 31 12 30.5-121.0 3.3 27.9 206 5140 18 22 11 Schedule for IRBENE (Code Ir ) Page 10 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 18 26 20 J1905+0952 22 31 52 28.4-119.1 3.4 28.4 36 5140 18 26 20 18 28 20 =1903+097 22 33 53 28.2-118.6 3.5 28.6 120 5171 18 26 21 18 28 20 GRS1915 22 33 53 30.2-120.3 3.3 28.1 -4 5171 No stop 18 31 50 --- 22 37 23 29.8-119.5 3.4 28.4 206 5225 18 28 21 18 31 50 J1905+0952 22 37 23 27.7-117.7 3.5 28.8 -4 5225 No stop 18 34 20 =1903+097 22 39 54 27.4-117.1 3.6 29.0 146 5264 18 31 51 18 34 20 GRS1915 22 39 54 29.5-118.8 3.4 28.6 -4 5264 No stop 18 37 50 --- 22 43 24 29.1-118.0 3.5 28.9 206 5318 18 34 21 18 38 30 J1905+0952 22 44 04 26.9-116.1 3.6 29.3 36 5318 18 38 30 18 40 30 =1903+097 22 46 05 26.7-115.6 3.7 29.4 120 5349 18 38 31 18 40 30 GRS1915 22 46 05 28.8-117.3 3.5 29.0 -4 5349 No stop 18 44 00 --- 22 49 35 28.4-116.5 3.6 29.3 206 5403 18 40 31 18 44 00 J1905+0952 22 49 35 26.3-114.8 3.7 29.6 -4 5403 No stop 18 46 30 =1903+097 22 52 06 26.0-114.2 3.8 29.8 146 5441 18 44 01 18 46 30 GRS1915 22 52 06 28.1-115.9 3.6 29.5 -4 5441 No stop 18 50 00 --- 22 55 36 27.6-115.0 3.7 29.7 206 5495 18 46 31 18 50 40 J1905+0952 22 56 16 25.5-113.2 3.8 30.0 36 5495 18 50 40 18 52 40 =1903+097 22 58 17 25.2-112.7 3.9 30.2 120 5526 18 50 41 18 52 40 J1913+0932 22 58 17 25.9-114.7 3.7 29.6 -4 5526 No stop 18 55 10 --- 23 00 47 25.6-114.1 3.8 29.8 146 5565 18 52 41 18 55 50 J1905+0952 23 01 27 24.8-112.0 3.9 30.3 36 5565 18 55 50 18 57 50 =1903+097 23 03 28 24.6-111.5 3.9 30.4 120 5596 18 55 51 18 57 50 GRS1915 23 03 28 26.7-113.1 3.8 30.2 -4 5596 No stop 19 01 20 --- 23 06 58 26.2-112.3 3.8 30.4 206 5650 18 57 51 19 01 20 J1905+0952 23 06 58 24.1-110.7 4.0 30.6 -4 5650 No stop 19 03 50 =1903+097 23 09 29 23.8-110.1 4.0 30.8 146 5689 19 01 21 19 03 50 GRS1915 23 09 29 25.9-111.7 3.9 30.5 -4 5689 No stop 19 07 20 --- 23 12 59 25.5-110.9 3.9 30.7 206 5743 19 03 51 19 08 00 J1905+0952 23 13 39 23.3-109.1 4.1 31.0 36 5743 19 08 00 19 10 00 =1903+097 23 15 40 23.0-108.7 4.2 31.1 120 5774 19 08 01 Schedule for IRBENE (Code Ir ) Page 11 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 19 10 00 GRS1915 23 15 40 25.2-110.3 4.0 30.8 -4 5774 No stop 19 13 30 --- 23 19 10 24.7-109.5 4.1 31.0 206 5828 19 10 01 19 13 30 J1905+0952 23 19 10 22.6-107.9 4.2 31.2 -4 5828 No stop 19 16 00 =1903+097 23 21 41 22.3-107.3 4.3 31.3 146 5866 19 13 31 19 16 00 GRS1915 23 21 41 24.4-108.9 4.1 31.1 -4 5866 No stop 19 19 30 --- 23 25 11 24.0-108.1 4.2 31.3 206 5921 19 16 01 19 20 10 J1905+0952 23 25 51 21.7-106.4 4.3 31.5 36 5921 19 20 10 19 22 10 =1903+097 23 27 52 21.5-105.9 4.4 31.6 120 5951 19 20 11 19 22 10 GRS1915 23 27 52 23.6-107.5 4.2 31.4 -4 5951 No stop 19 25 40 --- 23 31 22 23.2-106.7 4.3 31.6 206 6006 19 22 11 19 25 40 J1905+0952 23 31 22 21.0-105.1 4.4 31.7 -4 6006 No stop 19 28 10 =1903+097 23 33 53 20.7-104.6 4.5 31.8 146 6044 19 25 41 19 28 10 GRS1915 23 33 53 22.8-106.1 4.3 31.7 -4 6044 No stop 19 31 40 --- 23 37 23 22.4-105.3 4.4 31.8 206 6098 19 28 11 19 32 20 J1905+0952 23 38 03 20.1-103.6 4.5 32.0 36 6098 19 32 20 19 34 20 =1903+097 23 40 04 19.9-103.2 4.6 32.0 120 6129 19 32 21 19 34 20 J1913+0932 23 40 04 20.6-105.1 4.4 31.7 -4 6129 No stop 19 36 50 --- 23 42 34 20.3-104.5 4.5 31.8 146 6168 19 34 21 19 37 30 J1905+0952 23 43 14 19.5-102.5 4.6 32.1 36 6168 19 37 30 19 39 30 =1903+097 23 45 14 19.2-102.0 4.6 32.2 120 6199 19 37 31 19 39 30 GRS1915 23 45 14 21.4-103.5 4.5 32.1 -4 6199 No stop 19 43 00 --- 23 48 45 20.9-102.7 4.5 32.2 206 6253 19 39 31 19 43 00 J1905+0952 23 48 45 18.7-101.3 4.7 32.3 -4 6253 No stop 19 45 30 =1903+097 23 51 15 18.4-100.7 4.7 32.4 146 6292 19 43 01 19 45 30 GRS1915 23 51 15 20.6-102.2 4.6 32.3 -4 6292 No stop 19 49 00 --- 23 54 46 20.1-101.4 4.6 32.4 206 6346 19 45 31 19 49 40 J1905+0952 23 55 26 17.9 -99.8 4.8 32.5 36 6346 19 49 40 19 51 40 =1903+097 23 57 26 17.6 -99.4 4.8 32.5 120 6377 19 49 41 19 51 40 GRS1915 23 57 26 19.8-100.8 4.7 32.5 -4 6377 No stop 19 55 10 --- 00 00 57 19.3-100.1 4.7 32.6 206 6431 19 51 41 Schedule for IRBENE (Code Ir ) Page 12 Probing the radio jets in GRS1915+105 in a new puzzling accretion state UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Oct 2020 Day 304 --- 19 55 10 J1905+0952 00 00 57 17.1 -98.6 4.9 32.6 -4 6431 No stop 19 57 40 =1903+097 00 03 27 16.8 -98.0 4.9 32.6 146 6469 19 55 11 19 57 40 GRS1915 00 03 27 19.0 -99.5 4.8 32.6 -4 6469 No stop 20 01 10 --- 00 06 58 18.5 -98.7 4.8 32.7 206 6523 19 57 41 20 01 50 J1905+0952 00 07 38 16.2 -97.1 5.0 32.7 36 6523 20 01 50 20 03 50 =1903+097 00 09 38 16.0 -96.7 5.1 32.7 120 6554 20 01 51 20 03 50 GRS1915 00 09 38 18.2 -98.2 4.9 32.8 -4 6554 No stop 20 07 20 --- 00 13 09 17.7 -97.4 5.0 32.8 206 6608 20 03 51 20 07 20 J1905+0952 00 13 09 15.5 -96.0 5.1 32.8 -4 6608 No stop 20 09 50 =1903+097 00 15 39 15.2 -95.4 5.2 32.8 146 6647 20 07 21 20 09 50 GRS1915 00 15 39 17.4 -96.9 5.0 32.9 -4 6647 No stop 20 13 20 --- 00 19 10 16.9 -96.1 5.1 32.9 206 6701 20 09 51 20 14 00 J1905+0952 00 19 50 14.6 -94.5 5.2 32.9 36 6701 20 14 00 20 16 00 =1903+097 00 21 50 14.3 -94.1 5.3 32.9 120 6732 20 14 01 20 16 00 J1913+0932 00 21 50 15.1 -95.9 5.1 32.8 -4 6732 No stop 20 18 30 --- 00 24 21 14.8 -95.4 5.2 32.8 146 6771 20 16 01 20 19 10 J1905+0952 00 25 01 13.9 -93.4 5.3 32.9 36 6771 20 19 10 20 22 40 =1903+097 00 28 32 13.5 -92.7 5.4 33.0 210 6825 20 19 11 20 24 00 J2253+1608 00 29 52 45.1-146.9 1.6 17.8 50 6825 20 24 00 20 30 00 =3C454.3 00 35 53 44.6-144.9 1.7 18.7 360 6918 20 24 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess320.C2048 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 11 Station: IRBENE Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A1 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: 5 Setup file default. Used with PCAL = off LO sum= 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 5 13 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * GRS1915 19 12 49.958613 * 19 15 11.544821 19 16 08.946282 0.00 GRS1915+105 10 51 26.57111 * 10 56 44.62477 10 59 05.89093 0.00 From catalog imbedded in main SCHED input file. * J1913+0932 19 11 00.869981 * 19 13 24.025348 19 14 22.061653 0.00 09 27 34.81592 * 09 32 45.37648 09 35 03.19161 0.00 From catalog imbedded in main SCHED input file. 1758+388 17 58 44.703954 * 18 00 24.765363 18 01 04.600553 0.01 * J1800+3848 38 48 32.47350 * 38 48 30.69748 38 48 44.84096 0.01 J1800+38 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 5095 observations. 1903+097 19 03 17.231910 * 19 05 39.898972 19 06 37.696026 0.13 * J1905+0952 09 47 30.15815 * 09 52 08.40750 09 54 13.05426 0.22 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 104 observations. 3C454.3 22 51 29.519739 * 22 53 57.747939 22 54 59.130379 0.65 * J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 37.30815 0.73 2251+158 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J2253+16 GSFC 2016a X/S astro solution, 41272 observations. SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline GRS1915 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 3.967 475.462 J1913+0932 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 0.375 40.584 J1800+3848 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 0.167 21.144 J1905+0952 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 14 2.850 343.015 J2253+1608 sess320.C2048 1 2 3 4 5 7 8 9 10 11 14 0.100 9.530 EFFECT OF SOLAR CORONA The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) GRS1915 77.2 J1913+0932 76.4 J1800+3848 73.6 J1905+0952 74.7 J2253+1608 130.3 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg