COVER INFORMATION Station: IRBENE (Code Ir ) 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 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 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: 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 04 00 00 J1800+3848 16 19 56 65.1-232.2 -1.7 -32.9 0 0 04 00 00 04 05 00 =1758+388 16 24 57 65.6-230.2 -1.6 -31.9 300 77 04 00 01 04 07 00 J1905+0952 16 26 57 33.4-229.2 -2.7 -24.4 101 77 04 07 00 04 09 30 =1903+097 16 29 28 33.6-228.5 -2.6 -24.1 150 116 04 07 01 04 09 30 GRS1915 16 29 28 33.7-231.6 -2.8 -25.4 -5 116 No stop 04 13 00 --- 16 32 58 34.0-230.7 -2.7 -25.0 205 170 04 09 31 04 13 00 J1905+0952 16 32 58 34.0-227.6 -2.6 -23.7 -5 170 No stop 04 15 30 =1903+097 16 35 29 34.2-226.9 -2.5 -23.4 145 209 04 13 01 04 15 30 GRS1915 16 35 29 34.3-230.0 -2.7 -24.8 -5 209 No stop 04 19 00 --- 16 38 59 34.6-229.1 -2.6 -24.4 205 263 04 15 31 04 19 40 J1905+0952 16 39 39 34.7-225.8 -2.4 -23.0 35 263 04 19 40 04 21 30 =1903+097 16 41 30 34.8-225.3 -2.4 -22.8 110 291 04 19 41 04 21 30 GRS1915 16 41 30 34.9-228.4 -2.6 -24.1 -5 291 No stop 04 25 00 --- 16 45 00 35.2-227.4 -2.5 -23.7 205 345 04 21 31 04 25 00 J1905+0952 16 45 00 35.2-224.3 -2.4 -22.3 -5 345 No stop 04 27 30 =1903+097 16 47 31 35.4-223.6 -2.3 -22.1 145 384 04 25 01 04 27 30 GRS1915 16 47 31 35.5-226.7 -2.5 -23.5 -5 384 No stop 04 31 00 --- 16 51 01 35.8-225.8 -2.4 -23.1 205 438 04 27 31 04 31 40 J1905+0952 16 51 41 35.8-222.4 -2.2 -21.5 35 438 04 31 40 04 33 30 =1903+097 16 53 32 35.9-221.9 -2.2 -21.3 110 466 04 31 41 04 33 30 GRS1915 16 53 32 36.1-225.1 -2.4 -22.8 -5 466 No stop 04 37 00 --- 16 57 02 36.4-224.1 -2.3 -22.3 205 520 04 33 31 04 37 00 J1905+0952 16 57 02 36.2-220.9 -2.2 -20.9 -5 520 No stop 04 39 30 =1903+097 16 59 33 36.5-220.2 -2.1 -20.6 145 559 04 37 01 04 39 30 GRS1915 16 59 33 36.6-223.4 -2.3 -22.0 -5 559 No stop 04 43 00 --- 17 03 03 36.9-222.4 -2.2 -21.6 205 613 04 39 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 5 Mar 2021 Day 64 --- 04 43 40 J1905+0952 17 03 43 36.8-219.0 -2.0 -20.0 35 613 04 43 40 04 45 30 =1903+097 17 05 34 37.0-218.4 -2.0 -19.8 110 642 04 43 41 04 45 30 GRS1915 17 05 34 37.2-221.7 -2.2 -21.3 -5 642 No stop 04 49 00 --- 17 09 04 37.5-220.6 -2.1 -20.9 205 696 04 45 31 04 49 00 J1905+0952 17 09 04 37.3-217.4 -2.0 -19.3 -5 696 No stop 04 51 30 =1903+097 17 11 35 37.5-216.7 -1.9 -19.0 145 734 04 49 01 04 51 30 GRS1915 17 11 35 37.7-219.9 -2.1 -20.5 -5 734 No stop 04 55 00 --- 17 15 05 38.0-218.9 -2.0 -20.1 205 788 04 51 31 04 55 40 J1905+0952 17 15 45 37.8-215.4 -1.8 -18.4 35 788 04 55 40 04 57 30 =1903+097 17 17 36 37.9-214.9 -1.8 -18.2 110 817 04 55 41 04 57 30 J1913+0932 17 17 36 37.0-217.1 -1.9 -19.1 -4 817 No stop 05 00 00 --- 17 20 06 37.2-216.3 -1.9 -18.8 146 855 04 57 31 05 00 40 J1905+0952 17 20 46 38.2-214.0 -1.8 -17.7 36 855 05 00 40 05 02 40 =1903+097 17 22 46 38.3-213.4 -1.7 -17.4 120 886 05 00 41 05 02 40 GRS1915 17 22 46 38.6-216.6 -1.9 -19.0 -5 886 No stop 05 06 10 --- 17 26 17 38.9-215.6 -1.8 -18.5 205 940 05 02 41 05 06 10 J1905+0952 17 26 17 38.6-212.3 -1.7 -16.9 -5 940 No stop 05 08 40 =1903+097 17 28 47 38.8-211.5 -1.6 -16.6 145 979 05 06 11 05 08 40 GRS1915 17 28 47 39.1-214.8 -1.8 -18.2 -5 979 No stop 05 12 10 --- 17 32 18 39.4-213.8 -1.7 -17.7 205 1033 05 08 41 05 12 50 J1905+0952 17 32 58 39.1-210.3 -1.6 -15.9 35 1033 05 12 50 05 14 40 =1903+097 17 34 48 39.2-209.7 -1.5 -15.7 110 1061 05 12 51 05 14 40 GRS1915 17 34 48 39.5-213.0 -1.7 -17.3 -5 1061 No stop 05 18 10 --- 17 38 19 39.8-211.9 -1.6 -16.8 205 1116 05 14 41 05 18 10 J1905+0952 17 38 19 39.4-208.6 -1.5 -15.1 -5 1116 No stop 05 20 40 =1903+097 17 40 49 39.6-207.9 -1.4 -14.7 145 1154 05 18 11 05 20 40 GRS1915 17 40 49 40.0-211.2 -1.6 -16.4 -5 1154 No stop 05 24 10 --- 17 44 20 40.2-210.1 -1.5 -15.9 205 1208 05 20 41 05 24 50 J1905+0952 17 45 00 39.8-206.6 -1.4 -14.1 35 1208 05 24 50 05 26 40 =1903+097 17 46 50 39.9-206.0 -1.3 -13.8 110 1237 05 24 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 5 Mar 2021 Day 64 --- 05 26 40 GRS1915 17 46 50 40.4-209.3 -1.5 -15.5 -5 1237 No stop 05 30 10 --- 17 50 21 40.6-208.2 -1.4 -15.0 205 1291 05 26 41 05 30 10 J1905+0952 17 50 21 40.1-204.9 -1.3 -13.3 -5 1291 No stop 05 32 40 =1903+097 17 52 51 40.3-204.1 -1.2 -12.9 145 1329 05 30 11 05 32 40 GRS1915 17 52 51 40.8-207.4 -1.4 -14.6 -5 1329 No stop 05 36 10 --- 17 56 22 41.0-206.3 -1.3 -14.0 205 1384 05 32 41 05 36 50 J1905+0952 17 57 02 40.5-202.8 -1.2 -12.2 35 1384 05 36 50 05 38 40 =1903+097 17 58 52 40.6-202.2 -1.1 -11.9 110 1412 05 36 51 05 38 40 GRS1915 17 58 52 41.1-205.5 -1.3 -13.6 -5 1412 No stop 05 42 10 --- 18 02 23 41.3-204.4 -1.2 -13.1 205 1466 05 38 41 05 42 10 J1905+0952 18 02 23 40.8-201.1 -1.1 -11.3 -5 1466 No stop 05 44 40 =1903+097 18 04 53 40.9-200.3 -1.0 -10.9 145 1505 05 42 11 05 44 40 GRS1915 18 04 53 41.5-203.6 -1.2 -12.7 -5 1505 No stop 05 48 10 --- 18 08 24 41.6-202.5 -1.1 -12.1 205 1559 05 44 41 05 48 50 J1905+0952 18 09 04 41.1-199.0 -1.0 -10.2 35 1559 05 48 50 05 50 40 =1903+097 18 10 54 41.2-198.4 -0.9 -9.9 110 1587 05 48 51 05 50 40 J1913+0932 18 10 54 40.5-200.8 -1.1 -11.1 -4 1587 No stop 05 53 10 --- 18 13 25 40.6-200.0 -1.0 -10.7 146 1626 05 50 41 05 53 50 J1905+0952 18 14 05 41.3-197.3 -0.9 -9.3 36 1626 05 53 50 05 55 50 =1903+097 18 16 05 41.4-196.7 -0.8 -9.0 120 1657 05 53 51 05 55 50 GRS1915 18 16 05 42.0-200.0 -1.0 -10.8 -5 1657 No stop 05 59 20 --- 18 19 36 42.2-198.9 -0.9 -10.2 205 1711 05 55 51 05 59 20 J1905+0952 18 19 36 41.5-195.6 -0.8 -8.4 -5 1711 No stop 06 01 50 =1903+097 18 22 06 41.6-194.7 -0.7 -8.0 145 1749 05 59 21 06 01 50 GRS1915 18 22 06 42.3-198.1 -0.9 -9.8 -5 1749 No stop 06 05 20 --- 18 25 37 42.4-196.9 -0.8 -9.2 205 1803 06 01 51 06 06 00 J1905+0952 18 26 17 41.7-193.4 -0.7 -7.2 35 1803 06 06 00 06 07 50 =1903+097 18 28 07 41.8-192.8 -0.6 -6.9 110 1832 06 06 01 06 07 50 GRS1915 18 28 07 42.5-196.1 -0.8 -8.7 -5 1832 No stop 06 11 20 --- 18 31 38 42.6-194.9 -0.7 -8.1 205 1886 06 07 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 5 Mar 2021 Day 64 --- 06 11 20 J1905+0952 18 31 38 41.9-191.6 -0.6 -6.3 -5 1886 No stop 06 13 50 =1903+097 18 34 08 41.9-190.8 -0.5 -5.9 145 1925 06 11 21 06 13 50 GRS1915 18 34 08 42.7-194.1 -0.7 -7.7 -5 1925 No stop 06 17 20 --- 18 37 39 42.8-192.9 -0.6 -7.0 205 1979 06 13 51 06 18 00 J1905+0952 18 38 19 42.0-189.4 -0.5 -5.1 35 1979 06 18 00 06 19 50 =1903+097 18 40 09 42.1-188.8 -0.4 -4.8 110 2007 06 18 01 06 19 50 GRS1915 18 40 09 42.9-192.1 -0.6 -6.6 -5 2007 No stop 06 23 20 --- 18 43 40 43.0-190.9 -0.5 -6.0 205 2061 06 19 51 06 23 20 J1905+0952 18 43 40 42.1-187.6 -0.4 -4.2 -5 2061 No stop 06 25 50 =1903+097 18 46 10 42.2-186.8 -0.3 -3.7 145 2100 06 23 21 06 25 50 GRS1915 18 46 10 43.1-190.1 -0.5 -5.5 -5 2100 No stop 06 29 20 --- 18 49 41 43.1-188.9 -0.4 -4.9 205 2154 06 25 51 06 30 00 J1905+0952 18 50 21 42.2-185.4 -0.3 -3.0 35 2154 06 30 00 06 31 50 =1903+097 18 52 11 42.3-184.8 -0.2 -2.6 110 2182 06 30 01 06 31 50 GRS1915 18 52 11 43.2-188.1 -0.4 -4.4 -5 2182 No stop 06 35 20 --- 18 55 42 43.3-186.9 -0.3 -3.8 205 2236 06 31 51 06 35 20 J1905+0952 18 55 42 42.3-183.6 -0.2 -2.0 -5 2236 No stop 06 37 50 =1903+097 18 58 12 42.3-182.8 -0.1 -1.5 145 2275 06 35 21 06 37 50 GRS1915 18 58 12 43.3-186.1 -0.3 -3.3 -5 2275 No stop 06 41 20 --- 19 01 43 43.3-184.9 -0.2 -2.7 205 2329 06 37 51 06 42 00 J1905+0952 19 02 23 42.3-181.4 -0.1 -0.8 35 2329 06 42 00 06 43 50 =1903+097 19 04 13 42.3-180.8 -0.0 -0.4 110 2357 06 42 01 06 43 50 J1913+0932 19 04 13 42.0-183.4 -0.2 -1.8 -4 2357 No stop 06 46 20 --- 19 06 43 42.0-182.5 -0.1 -1.4 146 2396 06 43 51 06 47 00 J1905+0952 19 07 24 42.3-179.8 0.0 0.1 36 2396 06 47 00 06 49 00 =1903+097 19 09 24 42.3-179.1 0.0 0.5 120 2427 06 47 01 06 49 00 GRS1915 19 09 24 43.4-182.3 -0.1 -1.2 -5 2427 No stop 06 52 30 --- 19 12 54 43.4-181.1 -0.1 -0.6 205 2481 06 49 01 06 52 30 J1905+0952 19 12 54 42.3-177.9 0.1 1.1 -5 2481 No stop 06 55 00 =1903+097 19 15 25 42.3-177.1 0.1 1.6 145 2520 06 52 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 5 Mar 2021 Day 64 --- 06 55 00 GRS1915 19 15 25 43.4-180.3 -0.0 -0.1 -5 2520 No stop 06 58 30 --- 19 18 55 43.4-179.1 0.0 0.5 205 2574 06 55 01 06 59 10 J1905+0952 19 19 36 42.3-175.7 0.2 2.3 35 2574 06 59 10 07 01 00 =1903+097 19 21 26 42.3-175.1 0.2 2.7 110 2602 06 59 11 07 01 00 GRS1915 19 21 26 43.4-178.2 0.1 1.0 -5 2602 No stop 07 04 30 --- 19 24 56 43.4-177.0 0.1 1.6 205 2656 07 01 01 07 04 30 J1905+0952 19 24 56 42.2-173.9 0.3 3.3 -5 2656 No stop 07 07 00 =1903+097 19 27 27 42.2-173.1 0.3 3.8 145 2695 07 04 31 07 07 00 GRS1915 19 27 27 43.4-176.2 0.2 2.1 -5 2695 No stop 07 10 30 --- 19 30 57 43.3-175.0 0.2 2.7 205 2749 07 07 01 07 11 10 J1905+0952 19 31 37 42.1-171.7 0.4 4.5 35 2749 07 11 10 07 13 00 =1903+097 19 33 28 42.1-171.1 0.4 4.8 110 2777 07 11 11 07 13 00 GRS1915 19 33 28 43.3-174.2 0.3 3.2 -5 2777 No stop 07 16 30 --- 19 36 58 43.3-173.0 0.3 3.8 205 2831 07 13 01 07 16 30 J1905+0952 19 36 58 42.0-169.9 0.5 5.5 -5 2831 No stop 07 19 00 =1903+097 19 39 29 41.9-169.1 0.5 5.9 145 2870 07 16 31 07 19 00 GRS1915 19 39 29 43.2-172.1 0.4 4.3 -5 2870 No stop 07 22 30 --- 19 42 59 43.1-171.0 0.4 4.9 205 2924 07 19 01 07 23 10 J1905+0952 19 43 39 41.8-167.7 0.6 6.6 35 2924 07 23 10 07 25 00 =1903+097 19 45 30 41.8-167.1 0.6 7.0 110 2953 07 23 11 07 25 00 GRS1915 19 45 30 43.1-170.1 0.5 5.4 -4 2953 No stop 07 28 30 --- 19 49 00 43.0-168.9 0.5 6.0 206 3007 07 25 01 07 28 30 J1905+0952 19 49 00 41.7-166.0 0.7 7.6 -4 3007 No stop 07 31 00 =1903+097 19 51 31 41.6-165.2 0.7 8.0 146 3045 07 28 31 07 31 00 GRS1915 19 51 31 42.9-168.1 0.6 6.5 -4 3045 No stop 07 34 30 --- 19 55 01 42.8-166.9 0.6 7.1 206 3099 07 31 01 07 35 10 J1905+0952 19 55 41 41.4-163.8 0.8 8.7 36 3099 07 35 10 07 37 00 =1903+097 19 57 32 41.3-163.2 0.8 9.1 110 3128 07 35 11 07 37 00 J1913+0932 19 57 32 41.3-165.8 0.7 7.7 -4 3128 No stop 07 39 30 --- 20 00 02 41.2-165.0 0.8 8.1 146 3166 07 37 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 5 Mar 2021 Day 64 --- 07 40 00 J1800+3848 20 00 32 63.1-121.1 2.0 36.1 5 3166 07 40 00 07 45 00 =1758+388 20 05 33 62.5-119.4 2.1 36.9 300 3244 07 40 01 07 45 40 J1905+0952 20 06 13 41.0-160.4 1.0 10.5 16 3244 07 45 40 07 47 40 =1903+097 20 08 13 40.9-159.8 1.0 10.9 120 3275 07 45 41 07 47 40 GRS1915 20 08 13 42.4-162.6 0.9 9.4 -4 3275 No stop 07 51 10 --- 20 11 44 42.2-161.4 0.9 10.0 206 3329 07 47 41 07 51 10 J1905+0952 20 11 44 40.7-158.6 1.1 11.4 -4 3329 No stop 07 53 40 =1903+097 20 14 14 40.6-157.8 1.1 11.9 146 3367 07 51 11 07 53 40 GRS1915 20 14 14 42.1-160.6 1.0 10.4 -4 3367 No stop 07 57 10 --- 20 17 45 42.0-159.5 1.0 11.0 206 3421 07 53 41 07 57 50 J1905+0952 20 18 25 40.4-156.5 1.2 12.5 36 3421 07 57 50 07 59 40 =1903+097 20 20 15 40.3-155.9 1.2 12.8 110 3450 07 57 51 07 59 40 GRS1915 20 20 15 41.8-158.7 1.1 11.5 -4 3450 No stop 08 03 10 --- 20 23 46 41.7-157.5 1.1 12.0 206 3504 07 59 41 08 03 10 J1905+0952 20 23 46 40.1-154.8 1.3 13.4 -4 3504 No stop 08 05 40 =1903+097 20 26 16 39.9-154.1 1.3 13.8 146 3543 08 03 11 08 05 40 GRS1915 20 26 16 41.5-156.7 1.2 12.5 -4 3543 No stop 08 09 10 --- 20 29 47 41.3-155.6 1.2 13.0 206 3597 08 05 41 08 09 50 J1905+0952 20 30 27 39.7-152.8 1.4 14.4 36 3597 08 09 50 08 11 40 =1903+097 20 32 17 39.6-152.2 1.4 14.7 110 3625 08 09 51 08 11 40 GRS1915 20 32 17 41.2-154.8 1.3 13.4 -4 3625 No stop 08 15 10 --- 20 35 48 41.0-153.7 1.3 14.0 206 3679 08 11 41 08 15 10 J1905+0952 20 35 48 39.4-151.1 1.5 15.3 -4 3679 No stop 08 17 40 =1903+097 20 38 18 39.2-150.3 1.5 15.6 146 3718 08 15 11 08 17 40 GRS1915 20 38 18 40.8-152.9 1.4 14.4 -4 3718 No stop 08 21 10 --- 20 41 49 40.6-151.8 1.4 15.0 206 3772 08 17 41 08 21 50 J1905+0952 20 42 29 38.9-149.1 1.6 16.3 36 3772 08 21 50 08 23 40 =1903+097 20 44 19 38.8-148.5 1.6 16.5 110 3800 08 21 51 08 23 40 GRS1915 20 44 19 40.5-151.0 1.5 15.3 -4 3800 No stop 08 27 10 --- 20 47 50 40.2-150.0 1.5 15.9 206 3854 08 23 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 5 Mar 2021 Day 64 --- 08 27 10 J1905+0952 20 47 50 38.5-147.4 1.7 17.0 -4 3854 No stop 08 29 40 =1903+097 20 50 20 38.3-146.7 1.7 17.4 146 3893 08 27 11 08 29 40 GRS1915 20 50 20 40.1-149.2 1.6 16.3 -4 3893 No stop 08 33 10 --- 20 53 51 39.8-148.1 1.6 16.8 206 3947 08 29 41 08 33 50 J1905+0952 20 54 31 38.0-145.4 1.8 18.0 36 3947 08 33 50 08 35 40 =1903+097 20 56 21 37.9-144.9 1.8 18.2 110 3975 08 33 51 08 35 40 J1913+0932 20 56 21 38.2-147.3 1.7 17.1 -4 3975 No stop 08 38 10 --- 20 58 52 38.0-146.6 1.7 17.4 146 4014 08 35 41 08 38 50 J1905+0952 20 59 32 37.6-144.0 1.9 18.7 36 4014 08 38 50 08 40 50 =1903+097 21 01 32 37.5-143.4 1.9 19.0 120 4045 08 38 51 08 40 50 GRS1915 21 01 32 39.3-145.8 1.8 17.9 -4 4045 No stop 08 44 20 --- 21 05 03 39.0-144.7 1.8 18.4 206 4099 08 40 51 08 44 20 J1905+0952 21 05 03 37.2-142.3 2.0 19.4 -4 4099 No stop 08 46 50 =1903+097 21 07 33 37.0-141.6 2.0 19.8 146 4138 08 44 21 08 46 50 GRS1915 21 07 33 38.8-144.0 1.9 18.8 -4 4138 No stop 08 50 20 --- 21 11 04 38.5-142.9 1.9 19.2 206 4192 08 46 51 08 51 00 J1905+0952 21 11 44 36.6-140.4 2.1 20.3 36 4192 08 51 00 08 52 50 =1903+097 21 13 34 36.5-139.9 2.1 20.5 110 4220 08 51 01 08 52 50 GRS1915 21 13 34 38.3-142.2 2.0 19.6 -4 4220 No stop 08 56 20 --- 21 17 05 38.0-141.1 2.0 20.0 206 4274 08 52 51 08 56 20 J1905+0952 21 17 05 36.2-138.9 2.2 21.0 -4 4274 No stop 08 58 50 =1903+097 21 19 35 36.0-138.2 2.2 21.3 146 4313 08 56 21 08 58 50 GRS1915 21 19 35 37.8-140.4 2.1 20.4 -4 4313 No stop 09 02 20 --- 21 23 06 37.5-139.4 2.1 20.8 206 4367 08 58 51 09 03 00 J1905+0952 21 23 46 35.6-137.0 2.3 21.8 36 4367 09 03 00 09 04 50 =1903+097 21 25 36 35.4-136.5 2.3 22.0 110 4395 09 03 01 09 04 50 GRS1915 21 25 36 37.3-138.7 2.2 21.2 -4 4395 No stop 09 08 20 --- 21 29 07 37.0-137.7 2.2 21.6 206 4449 09 04 51 09 08 20 J1905+0952 21 29 07 35.1-135.5 2.4 22.4 -4 4449 No stop 09 10 50 =1903+097 21 31 37 34.8-134.8 2.4 22.7 146 4488 09 08 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 5 Mar 2021 Day 64 --- 09 10 50 GRS1915 21 31 37 36.7-137.0 2.3 21.9 -4 4488 No stop 09 14 20 --- 21 35 08 36.4-136.0 2.3 22.3 206 4542 09 10 51 09 15 00 J1905+0952 21 35 48 34.4-133.6 2.5 23.2 36 4542 09 15 00 09 16 50 =1903+097 21 37 38 34.3-133.1 2.5 23.4 110 4571 09 15 01 09 16 50 GRS1915 21 37 38 36.2-135.3 2.4 22.6 -4 4571 No stop 09 20 20 --- 21 41 09 35.8-134.3 2.4 23.0 206 4625 09 16 51 09 20 20 J1905+0952 21 41 09 33.9-132.2 2.6 23.8 -4 4625 No stop 09 22 50 =1903+097 21 43 39 33.7-131.5 2.6 24.1 146 4663 09 20 21 09 22 50 GRS1915 21 43 39 35.6-133.6 2.5 23.3 -4 4663 No stop 09 26 20 --- 21 47 10 35.3-132.6 2.5 23.7 206 4717 09 22 51 09 27 00 J1905+0952 21 47 50 33.2-130.4 2.7 24.5 36 4717 09 27 00 09 28 50 =1903+097 21 49 40 33.1-129.9 2.7 24.7 110 4746 09 27 01 09 28 50 J1913+0932 21 49 40 33.5-132.1 2.6 23.8 -4 4746 No stop 09 31 20 --- 21 52 11 33.3-131.4 2.6 24.1 146 4784 09 28 51 09 32 00 J1905+0952 21 52 51 32.7-129.0 2.8 25.0 36 4784 09 32 00 09 34 00 =1903+097 21 54 51 32.5-128.5 2.8 25.2 120 4815 09 32 01 09 34 00 GRS1915 21 54 51 34.5-130.5 2.6 24.6 -4 4815 No stop 09 37 30 --- 21 58 22 34.1-129.6 2.7 24.9 206 4869 09 34 01 09 37 30 J1905+0952 21 58 22 32.1-127.6 2.9 25.6 -4 4869 No stop 09 40 00 =1903+097 22 00 52 31.9-126.9 2.9 25.8 146 4908 09 37 31 09 40 00 GRS1915 22 00 52 33.9-128.9 2.7 25.2 -4 4908 No stop 09 43 30 --- 22 04 22 33.5-128.0 2.8 25.5 206 4962 09 40 01 09 44 10 J1905+0952 22 05 03 31.4-125.8 3.0 26.2 36 4962 09 44 10 09 46 10 =1903+097 22 07 03 31.2-125.3 3.0 26.4 120 4993 09 44 11 09 46 10 GRS1915 22 07 03 33.2-127.2 2.8 25.8 -4 4993 No stop 09 49 40 --- 22 10 34 32.8-126.3 2.9 26.1 206 5047 09 46 11 09 49 40 J1905+0952 22 10 34 30.8-124.4 3.1 26.7 -4 5047 No stop 09 52 10 =1903+097 22 13 04 30.5-123.8 3.1 26.9 146 5086 09 49 41 09 52 10 GRS1915 22 13 04 32.6-125.7 2.9 26.4 -4 5086 No stop 09 55 40 --- 22 16 34 32.2-124.8 3.0 26.7 206 5140 09 52 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 5 Mar 2021 Day 64 --- 09 56 20 J1905+0952 22 17 15 30.1-122.7 3.2 27.3 36 5140 09 56 20 09 58 20 =1903+097 22 19 15 29.8-122.2 3.2 27.4 120 5171 09 56 21 09 58 20 GRS1915 22 19 15 31.9-124.1 3.1 26.9 -4 5171 No stop 10 01 50 --- 22 22 46 31.5-123.2 3.1 27.2 206 5225 09 58 21 10 01 50 J1905+0952 22 22 46 29.4-121.3 3.3 27.7 -4 5225 No stop 10 04 20 =1903+097 22 25 16 29.2-120.7 3.3 27.9 146 5264 10 01 51 10 04 20 GRS1915 22 25 16 31.2-122.5 3.2 27.4 -4 5264 No stop 10 07 50 --- 22 28 46 30.8-121.6 3.2 27.7 206 5318 10 04 21 10 08 30 J1905+0952 22 29 27 28.7-119.7 3.4 28.2 36 5318 10 08 30 10 10 30 =1903+097 22 31 27 28.4-119.2 3.4 28.4 120 5349 10 08 31 10 10 30 GRS1915 22 31 27 30.5-121.0 3.3 27.9 -4 5349 No stop 10 14 00 --- 22 34 58 30.1-120.1 3.3 28.2 206 5403 10 10 31 10 14 00 J1905+0952 22 34 58 28.0-118.3 3.5 28.7 -4 5403 No stop 10 16 30 =1903+097 22 37 28 27.7-117.7 3.5 28.8 146 5441 10 14 01 10 16 30 GRS1915 22 37 28 29.8-119.5 3.4 28.4 -4 5441 No stop 10 20 00 --- 22 40 58 29.4-118.6 3.4 28.7 206 5495 10 16 31 10 20 40 J1905+0952 22 41 39 27.2-116.7 3.6 29.1 36 5495 10 20 40 10 22 40 =1903+097 22 43 39 27.0-116.2 3.6 29.3 120 5526 10 20 41 10 22 40 J1913+0932 22 43 39 27.6-118.3 3.5 28.6 -4 5526 No stop 10 25 10 --- 22 46 09 27.3-117.6 3.5 28.8 146 5565 10 22 41 10 25 50 J1905+0952 22 46 49 26.6-115.4 3.7 29.5 36 5565 10 25 50 10 27 50 =1903+097 22 48 50 26.4-115.0 3.7 29.6 120 5596 10 25 51 10 27 50 GRS1915 22 48 50 28.5-116.7 3.5 29.2 -4 5596 No stop 10 31 20 --- 22 52 20 28.0-115.8 3.6 29.5 206 5650 10 27 51 10 31 20 J1905+0952 22 52 20 25.9-114.1 3.8 29.8 -4 5650 No stop 10 33 50 =1903+097 22 54 51 25.6-113.5 3.8 30.0 146 5689 10 31 21 10 33 50 GRS1915 22 54 51 27.7-115.2 3.6 29.6 -4 5689 No stop 10 37 20 --- 22 58 21 27.3-114.4 3.7 29.9 206 5743 10 33 51 10 38 00 J1905+0952 22 59 01 25.1-112.5 3.9 30.2 36 5743 10 38 00 10 40 00 =1903+097 23 01 02 24.9-112.1 3.9 30.3 120 5774 10 38 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 5 Mar 2021 Day 64 --- 10 40 00 GRS1915 23 01 02 27.0-113.7 3.7 30.0 -4 5774 No stop 10 43 30 --- 23 04 32 26.5-112.9 3.8 30.2 206 5828 10 40 01 10 43 30 J1905+0952 23 04 32 24.4-111.3 4.0 30.5 -4 5828 No stop 10 46 00 =1903+097 23 07 03 24.1-110.7 4.0 30.6 146 5866 10 43 31 10 46 00 GRS1915 23 07 03 26.2-112.3 3.8 30.4 -4 5866 No stop 10 49 30 --- 23 10 33 25.8-111.5 3.9 30.6 206 5921 10 46 01 10 50 10 J1905+0952 23 11 13 23.6-109.7 4.1 30.8 36 5921 10 50 10 10 52 10 =1903+097 23 13 14 23.3-109.2 4.1 30.9 120 5951 10 50 11 10 52 10 GRS1915 23 13 14 25.5-110.8 4.0 30.7 -4 5951 No stop 10 55 40 --- 23 16 44 25.0-110.0 4.0 30.9 206 6006 10 52 11 10 55 40 J1905+0952 23 16 44 22.9-108.4 4.2 31.1 -4 6006 No stop 10 58 10 =1903+097 23 19 15 22.6-107.9 4.2 31.2 146 6044 10 55 41 10 58 10 GRS1915 23 19 15 24.7-109.4 4.1 31.0 -4 6044 No stop 11 01 40 --- 23 22 45 24.3-108.6 4.1 31.2 206 6098 10 58 11 11 02 20 J1905+0952 23 23 25 22.0-106.9 4.3 31.4 36 6098 11 02 20 11 04 20 =1903+097 23 25 26 21.8-106.5 4.3 31.5 120 6129 11 02 21 11 04 20 J1913+0932 23 25 26 22.5-108.4 4.2 31.1 -4 6129 No stop 11 06 50 --- 23 27 56 22.2-107.8 4.2 31.2 146 6168 11 04 21 11 07 30 J1905+0952 23 28 36 21.4-105.7 4.4 31.6 36 6168 11 07 30 11 09 30 =1903+097 23 30 37 21.1-105.3 4.4 31.7 120 6199 11 07 31 11 09 30 GRS1915 23 30 37 23.3-106.8 4.2 31.5 -4 6199 No stop 11 13 00 --- 23 34 07 22.8-106.0 4.3 31.7 206 6253 11 09 31 11 13 00 J1905+0952 23 34 07 20.7-104.5 4.5 31.8 -4 6253 No stop 11 15 30 =1903+097 23 36 38 20.3-103.9 4.5 31.9 146 6292 11 13 01 11 15 30 GRS1915 23 36 38 22.5-105.5 4.3 31.8 -4 6292 No stop 11 19 00 --- 23 40 08 22.0-104.7 4.4 31.9 206 6346 11 15 31 11 19 40 J1905+0952 23 40 48 19.8-103.0 4.6 32.0 36 6346 11 19 40 11 21 40 =1903+097 23 42 49 19.5-102.6 4.6 32.1 120 6377 11 19 41 11 21 40 GRS1915 23 42 49 21.7-104.1 4.4 32.0 -4 6377 No stop 11 25 10 --- 23 46 19 21.2-103.3 4.5 32.1 206 6431 11 21 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 5 Mar 2021 Day 64 --- 11 25 10 J1905+0952 23 46 19 19.1-101.8 4.7 32.2 -4 6431 No stop 11 27 40 =1903+097 23 48 50 18.7-101.2 4.7 32.3 146 6469 11 25 11 11 27 40 GRS1915 23 48 50 20.9-102.7 4.5 32.2 -4 6469 No stop 11 31 10 --- 23 52 20 20.4-102.0 4.6 32.3 206 6523 11 27 41 11 31 50 J1905+0952 23 53 00 18.2-100.3 4.8 32.4 36 6523 11 31 50 11 33 50 =1903+097 23 55 01 17.9 -99.9 4.8 32.4 120 6554 11 31 51 11 33 50 GRS1915 23 55 01 20.1-101.4 4.6 32.4 -4 6554 No stop 11 37 20 --- 23 58 31 19.6-100.6 4.7 32.5 206 6608 11 33 51 11 37 20 J1905+0952 23 58 31 17.4 -99.1 4.9 32.5 -4 6608 No stop 11 39 50 =1903+097 00 01 02 17.1 -98.6 4.9 32.6 146 6647 11 37 21 11 39 50 GRS1915 00 01 02 19.3-100.0 4.7 32.6 -4 6647 No stop 11 43 20 --- 00 04 32 18.8 -99.3 4.8 32.6 206 6701 11 39 51 11 44 00 J1905+0952 00 05 12 16.6 -97.7 5.0 32.7 36 6701 11 44 00 11 46 00 =1903+097 00 07 13 16.3 -97.2 5.0 32.7 120 6732 11 44 01 11 46 00 J1913+0932 00 07 13 17.1 -99.1 4.9 32.5 -4 6732 No stop 11 48 30 --- 00 09 43 16.7 -98.6 4.9 32.6 146 6771 11 46 01 11 49 10 J1905+0952 00 10 23 15.9 -96.6 5.1 32.8 36 6771 11 49 10 11 52 40 =1903+097 00 13 54 15.4 -95.8 5.1 32.8 210 6825 11 49 11 11 54 00 J2253+1608 00 15 14 46.1-151.7 1.3 15.4 49 6825 11 54 00 12 00 00 =3C454.3 00 21 15 45.7-149.7 1.4 16.4 360 6918 11 54 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess121.C2048 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 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 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