COVER INFORMATION Station: IRBENE (Code Ir ) Experiment: Probing the radio jets in GRS1915+105 in a new puzzling accretion state Exp. Code: EM144C Schedule Version: 3.40 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 ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 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 21 30 00 J1800+3848 16 38 54 67.0-224.4 -1.4 -28.8 0 0 21 30 00 21 35 00 =1758+388 16 43 55 67.4-222.2 -1.3 -27.5 300 77 21 30 01 21 37 00 J1905+0952 16 45 55 35.2-224.0 -2.3 -22.2 101 77 21 37 00 21 39 30 =1903+097 16 48 25 35.5-223.3 -2.3 -21.9 150 116 21 37 01 21 39 30 GRS1915 16 48 25 35.6-226.5 -2.5 -23.4 -5 116 No stop 21 43 00 --- 16 51 56 35.9-225.5 -2.4 -23.0 205 170 21 39 31 21 43 40 J1905+0952 16 52 36 35.9-222.2 -2.2 -21.4 35 170 21 43 40 21 45 30 =1903+097 16 54 26 36.0-221.6 -2.2 -21.2 110 198 21 43 41 21 45 30 GRS1915 16 54 26 36.1-224.8 -2.4 -22.7 -5 198 No stop 21 49 00 --- 16 57 57 36.5-223.8 -2.3 -22.2 205 252 21 45 31 21 49 00 J1905+0952 16 57 57 36.3-220.6 -2.1 -20.8 -5 252 No stop 21 51 30 =1903+097 17 00 27 36.5-219.9 -2.1 -20.5 145 291 21 49 01 21 51 30 GRS1915 17 00 27 36.7-223.1 -2.3 -21.9 -5 291 No stop 21 55 00 --- 17 03 58 37.0-222.1 -2.2 -21.5 205 345 21 51 31 21 55 40 J1905+0952 17 04 38 36.9-218.7 -2.0 -19.9 35 345 21 55 40 21 57 30 =1903+097 17 06 28 37.1-218.2 -2.0 -19.7 110 374 21 55 41 21 57 30 GRS1915 17 06 28 37.3-221.4 -2.2 -21.2 -5 374 No stop 22 01 00 --- 17 09 59 37.6-220.4 -2.1 -20.7 205 428 21 57 31 22 01 00 J1905+0952 17 09 59 37.3-217.2 -1.9 -19.2 -5 428 No stop 22 03 30 =1903+097 17 12 29 37.5-216.4 -1.9 -18.9 145 466 22 01 01 22 03 30 GRS1915 17 12 29 37.8-219.7 -2.1 -20.4 -5 466 No stop 22 07 00 --- 17 16 00 38.1-218.6 -2.0 -20.0 205 520 22 03 31 22 07 40 J1905+0952 17 16 40 37.9-215.2 -1.8 -18.3 35 520 22 07 40 22 09 30 =1903+097 17 18 30 38.0-214.6 -1.8 -18.0 110 549 22 07 41 22 09 30 GRS1915 17 18 30 38.3-217.9 -2.0 -19.6 -5 549 No stop 22 13 00 --- 17 22 01 38.6-216.9 -1.9 -19.1 205 603 22 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 ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 22 13 00 J1905+0952 17 22 01 38.3-213.6 -1.7 -17.5 -5 603 No stop 22 15 30 =1903+097 17 24 31 38.5-212.9 -1.7 -17.2 145 642 22 13 01 22 15 30 GRS1915 17 24 31 38.8-216.1 -1.9 -18.8 -5 642 No stop 22 19 00 --- 17 28 02 39.0-215.1 -1.8 -18.3 205 696 22 15 31 22 19 40 J1905+0952 17 28 42 38.8-211.6 -1.6 -16.6 35 696 22 19 40 22 21 30 =1903+097 17 30 32 38.9-211.0 -1.6 -16.3 110 724 22 19 41 22 21 30 GRS1915 17 30 32 39.2-214.3 -1.8 -17.9 -5 724 No stop 22 25 00 --- 17 34 03 39.5-213.3 -1.7 -17.4 205 778 22 21 31 22 25 00 J1905+0952 17 34 03 39.1-210.0 -1.5 -15.8 -5 778 No stop 22 27 30 =1903+097 17 36 33 39.3-209.2 -1.5 -15.4 145 817 22 25 01 22 27 30 GRS1915 17 36 33 39.7-212.5 -1.7 -17.1 -5 817 No stop 22 31 00 --- 17 40 04 39.9-211.4 -1.6 -16.6 205 871 22 27 31 22 31 40 J1905+0952 17 40 44 39.6-207.9 -1.4 -14.8 35 871 22 31 40 22 33 30 =1903+097 17 42 34 39.7-207.3 -1.4 -14.5 110 899 22 31 41 22 33 30 J1913+0932 17 42 34 38.9-209.6 -1.5 -15.6 -4 899 No stop 22 37 00 --- 17 46 05 39.1-208.5 -1.5 -15.1 206 953 22 33 31 22 38 00 J1905+0952 17 47 05 39.9-205.9 -1.3 -13.8 56 953 22 38 00 22 40 30 =1903+097 17 49 35 40.1-205.2 -1.3 -13.4 150 992 22 38 01 22 40 30 GRS1915 17 49 35 40.6-208.5 -1.4 -15.1 -5 992 No stop 22 44 00 --- 17 53 06 40.8-207.4 -1.4 -14.6 205 1046 22 40 31 22 44 00 J1905+0952 17 53 06 40.3-204.1 -1.2 -12.8 -5 1046 No stop 22 46 30 =1903+097 17 55 36 40.4-203.3 -1.2 -12.4 145 1085 22 44 01 22 46 30 GRS1915 17 55 36 40.9-206.6 -1.3 -14.2 -5 1085 No stop 22 50 00 --- 17 59 07 41.1-205.5 -1.3 -13.6 205 1139 22 46 31 22 50 40 J1905+0952 17 59 47 40.6-201.9 -1.1 -11.7 35 1139 22 50 40 22 52 30 =1903+097 18 01 37 40.7-201.4 -1.1 -11.4 110 1167 22 50 41 22 52 30 GRS1915 18 01 37 41.3-204.7 -1.2 -13.2 -5 1167 No stop 22 56 00 --- 18 05 08 41.5-203.6 -1.2 -12.6 205 1221 22 52 31 22 56 00 J1905+0952 18 05 08 40.9-200.2 -1.0 -10.9 -5 1221 No stop 22 58 30 =1903+097 18 07 38 41.0-199.4 -1.0 -10.4 145 1260 22 56 01 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 ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 22 58 30 GRS1915 18 07 38 41.6-202.8 -1.1 -12.2 -5 1260 No stop 23 02 00 --- 18 11 09 41.8-201.6 -1.1 -11.6 205 1314 22 58 31 23 02 40 J1905+0952 18 11 49 41.2-198.1 -0.9 -9.7 35 1314 23 02 40 23 04 30 =1903+097 18 13 39 41.3-197.5 -0.9 -9.4 110 1342 23 02 41 23 04 30 GRS1915 18 13 39 41.9-200.8 -1.0 -11.2 -5 1342 No stop 23 08 00 --- 18 17 10 42.1-199.7 -1.0 -10.6 205 1396 23 04 31 23 08 00 J1905+0952 18 17 10 41.4-196.4 -0.8 -8.8 -5 1396 No stop 23 10 30 =1903+097 18 19 40 41.5-195.5 -0.8 -8.4 145 1435 23 08 01 23 10 30 GRS1915 18 19 40 42.2-198.9 -0.9 -10.2 -5 1435 No stop 23 14 00 --- 18 23 11 42.3-197.7 -0.9 -9.6 205 1489 23 10 31 23 14 40 J1905+0952 18 23 51 41.6-194.2 -0.7 -7.7 35 1489 23 14 40 23 16 30 =1903+097 18 25 41 41.7-193.6 -0.7 -7.3 110 1517 23 14 41 23 16 30 GRS1915 18 25 41 42.4-196.9 -0.8 -9.1 -5 1517 No stop 23 20 00 --- 18 29 12 42.6-195.8 -0.8 -8.5 205 1572 23 16 31 23 20 00 J1905+0952 18 29 12 41.8-192.4 -0.6 -6.7 -5 1572 No stop 23 22 30 =1903+097 18 31 42 41.9-191.6 -0.6 -6.3 145 1610 23 20 01 23 22 30 GRS1915 18 31 42 42.7-194.9 -0.7 -8.1 -5 1610 No stop 23 26 00 --- 18 35 13 42.8-193.8 -0.7 -7.5 205 1664 23 22 31 23 26 40 J1905+0952 18 35 53 42.0-190.2 -0.5 -5.6 35 1664 23 26 40 23 28 30 =1903+097 18 37 43 42.0-189.6 -0.5 -5.2 110 1693 23 26 41 23 28 30 GRS1915 18 37 43 42.8-192.9 -0.6 -7.0 -5 1693 No stop 23 32 00 --- 18 41 14 42.9-191.8 -0.6 -6.4 205 1747 23 28 31 23 32 00 J1905+0952 18 41 14 42.1-188.5 -0.4 -4.6 -5 1747 No stop 23 34 30 =1903+097 18 43 44 42.1-187.6 -0.4 -4.1 145 1785 23 32 01 23 34 30 J1913+0932 18 43 44 41.7-190.2 -0.5 -5.5 -4 1785 No stop 23 38 00 --- 18 47 15 41.7-189.0 -0.5 -4.9 206 1840 23 34 31 23 39 00 J1905+0952 18 48 15 42.2-186.1 -0.3 -3.3 56 1840 23 39 00 23 41 30 =1903+097 18 50 45 42.2-185.3 -0.3 -2.9 150 1878 23 39 01 23 41 30 GRS1915 18 50 45 43.2-188.6 -0.4 -4.7 -5 1878 No stop 23 45 00 --- 18 54 16 43.2-187.4 -0.4 -4.0 205 1932 23 41 31 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 ---------------------------------------------------------------------------------------- --- Wed 16 Jun 2021 Day 167 --- 23 45 00 J1905+0952 18 54 16 42.3-184.1 -0.2 -2.3 -5 1932 No stop 23 47 30 =1903+097 18 56 46 42.3-183.3 -0.2 -1.8 145 1971 23 45 01 23 47 30 GRS1915 18 56 46 43.3-186.6 -0.3 -3.6 -5 1971 No stop 23 51 00 --- 19 00 17 43.3-185.4 -0.3 -2.9 205 2025 23 47 31 23 51 40 J1905+0952 19 00 57 42.3-181.9 -0.1 -1.0 35 2025 23 51 40 23 53 30 =1903+097 19 02 47 42.3-181.3 -0.1 -0.7 110 2053 23 51 41 23 53 30 GRS1915 19 02 47 43.4-184.5 -0.2 -2.5 -5 2053 No stop 23 57 00 --- 19 06 18 43.4-183.3 -0.2 -1.8 205 2107 23 53 31 23 57 00 J1905+0952 19 06 18 42.3-180.1 -0.0 -0.1 -5 2107 No stop 23 59 30 =1903+097 19 08 48 42.3-179.3 0.0 0.4 145 2146 23 57 01 --- Start: Wed 16 Jun 2021 Day 167 -- Stop: Thu 17 Jun 2021 Day 168 --- 23 59 30 GRS1915 19 08 48 43.4-182.5 -0.1 -1.4 -5 2146 No stop 00 03 00 --- 19 12 19 43.4-181.3 -0.1 -0.7 205 2200 23 59 31 00 03 40 J1905+0952 19 12 59 42.3-177.9 0.1 1.1 35 2200 00 03 40 00 05 30 =1903+097 19 14 49 42.3-177.3 0.1 1.5 110 2229 00 03 41 00 05 30 GRS1915 19 14 49 43.4-180.5 -0.0 -0.3 -5 2229 No stop 00 09 00 --- 19 18 20 43.4-179.3 0.0 0.4 205 2283 00 05 31 00 09 00 J1905+0952 19 18 20 42.3-176.1 0.2 2.1 -5 2283 No stop 00 11 30 =1903+097 19 20 50 42.3-175.3 0.2 2.6 145 2321 00 09 01 00 11 30 GRS1915 19 20 50 43.4-178.4 0.1 0.9 -5 2321 No stop 00 15 00 --- 19 24 21 43.4-177.3 0.1 1.5 205 2375 00 11 31 00 15 40 J1905+0952 19 25 01 42.2-173.9 0.3 3.3 35 2375 00 15 40 00 17 30 =1903+097 19 26 51 42.2-173.3 0.3 3.6 110 2404 00 15 41 00 17 30 GRS1915 19 26 51 43.4-176.4 0.2 2.0 -5 2404 No stop 00 21 00 --- 19 30 22 43.4-175.2 0.2 2.6 205 2458 00 17 31 00 21 00 J1905+0952 19 30 22 42.1-172.1 0.4 4.3 -5 2458 No stop 00 23 30 =1903+097 19 32 52 42.1-171.3 0.4 4.7 145 2497 00 21 01 00 23 30 GRS1915 19 32 52 43.3-174.4 0.3 3.1 -5 2497 No stop 00 27 00 --- 19 36 23 43.3-173.2 0.3 3.7 205 2551 00 23 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 00 27 40 J1905+0952 19 37 03 42.0-169.9 0.5 5.5 35 2551 00 27 40 00 29 30 =1903+097 19 38 53 41.9-169.3 0.5 5.8 110 2579 00 27 41 00 29 30 GRS1915 19 38 53 43.2-172.4 0.4 4.2 -5 2579 No stop 00 33 00 --- 19 42 24 43.2-171.2 0.4 4.8 205 2633 00 29 31 00 33 00 J1905+0952 19 42 24 41.9-168.2 0.6 6.4 -5 2633 No stop 00 35 30 =1903+097 19 44 54 41.8-167.3 0.6 6.9 145 2672 00 33 01 00 35 30 J1913+0932 19 44 54 41.7-169.9 0.5 5.5 -4 2672 No stop 00 39 00 --- 19 48 25 41.6-168.8 0.6 6.1 206 2726 00 35 31 00 40 00 J1905+0952 19 49 25 41.6-165.9 0.7 7.6 56 2726 00 40 00 00 42 30 =1903+097 19 51 55 41.6-165.0 0.8 8.1 150 2764 00 40 01 00 42 30 GRS1915 19 51 55 42.9-168.0 0.6 6.5 -4 2764 No stop 00 46 00 --- 19 55 26 42.8-166.8 0.7 7.2 206 2819 00 42 31 00 46 00 J1905+0952 19 55 26 41.4-163.9 0.8 8.7 -4 2819 No stop 00 48 30 =1903+097 19 57 56 41.3-163.1 0.9 9.1 146 2857 00 46 01 00 48 30 GRS1915 19 57 56 42.7-166.0 0.7 7.6 -4 2857 No stop 00 52 00 --- 20 01 27 42.6-164.8 0.8 8.2 206 2911 00 48 31 00 52 40 J1905+0952 20 02 07 41.2-161.7 0.9 9.8 36 2911 00 52 40 00 54 30 =1903+097 20 03 57 41.1-161.1 1.0 10.1 110 2940 00 52 41 00 54 30 GRS1915 20 03 57 42.5-164.0 0.8 8.7 -4 2940 No stop 00 58 00 --- 20 07 28 42.4-162.9 0.9 9.3 206 2994 00 54 31 00 58 00 J1905+0952 20 07 28 40.9-160.0 1.0 10.7 -4 2994 No stop 01 00 30 =1903+097 20 09 58 40.8-159.2 1.1 11.1 146 3032 00 58 01 01 00 30 GRS1915 20 09 58 42.3-162.0 0.9 9.7 -4 3032 No stop 01 04 00 --- 20 13 29 42.2-160.9 1.0 10.3 206 3087 01 00 31 01 04 40 J1905+0952 20 14 09 40.6-157.9 1.1 11.8 36 3087 01 04 40 01 06 30 =1903+097 20 15 59 40.5-157.3 1.2 12.1 110 3115 01 04 41 01 06 30 GRS1915 20 15 59 42.0-160.1 1.0 10.7 -4 3115 No stop 01 10 00 --- 20 19 30 41.9-158.9 1.1 11.3 206 3169 01 06 31 01 10 00 J1905+0952 20 19 30 40.3-156.2 1.2 12.7 -4 3169 No stop 01 12 30 =1903+097 20 22 00 40.2-155.4 1.3 13.1 146 3208 01 10 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 01 12 30 GRS1915 20 22 00 41.8-158.1 1.1 11.7 -4 3208 No stop 01 16 00 --- 20 25 31 41.6-157.0 1.2 12.3 206 3262 01 12 31 01 16 40 J1905+0952 20 26 11 40.0-154.1 1.3 13.8 36 3262 01 16 40 01 18 30 =1903+097 20 28 01 39.8-153.5 1.4 14.1 110 3290 01 16 41 01 18 30 GRS1915 20 28 01 41.4-156.2 1.2 12.7 -4 3290 No stop 01 22 00 --- 20 31 32 41.2-155.1 1.3 13.3 206 3344 01 18 31 01 22 00 J1905+0952 20 31 32 39.6-152.4 1.4 14.6 -4 3344 No stop 01 24 30 =1903+097 20 34 02 39.5-151.7 1.5 15.0 146 3383 01 22 01 01 24 30 GRS1915 20 34 02 41.1-154.3 1.3 13.7 -4 3383 No stop 01 28 00 --- 20 37 33 40.9-153.2 1.4 14.3 206 3437 01 24 31 01 28 40 J1905+0952 20 38 13 39.2-150.4 1.5 15.6 36 3437 01 28 40 01 30 30 =1903+097 20 40 03 39.1-149.8 1.6 15.9 110 3465 01 28 41 01 30 30 GRS1915 20 40 03 40.7-152.4 1.4 14.7 -4 3465 No stop 01 34 00 --- 20 43 34 40.5-151.3 1.5 15.2 206 3519 01 30 31 01 34 40 J1905+0952 20 44 14 38.8-148.5 1.6 16.5 36 3519 01 34 40 01 36 30 =1903+097 20 46 04 38.7-148.0 1.7 16.8 110 3548 01 34 41 01 36 30 J1913+0932 20 46 04 38.9-150.5 1.5 15.6 -4 3548 No stop 01 39 00 --- 20 48 35 38.7-149.7 1.6 15.9 146 3586 01 36 31 01 39 00 J1905+0952 20 48 35 38.5-147.2 1.7 17.1 -4 3586 No stop 01 41 30 =1903+097 20 51 05 38.3-146.5 1.7 17.5 146 3625 01 39 01 01 42 00 J1800+3848 20 51 35 56.8-105.6 2.8 41.5 7 3625 01 42 00 01 47 00 =1758+388 20 56 36 56.1-104.3 2.9 41.8 300 3702 01 42 01 01 49 00 J1905+0952 20 58 36 37.7-144.2 1.9 18.6 97 3702 01 49 00 01 51 30 =1903+097 21 01 07 37.5-143.5 1.9 18.9 150 3741 01 49 01 01 51 30 GRS1915 21 01 07 39.3-145.9 1.7 17.8 -4 3741 No stop 01 55 00 --- 21 04 37 39.0-144.9 1.8 18.3 206 3795 01 51 31 01 55 00 J1905+0952 21 04 37 37.2-142.5 2.0 19.4 -4 3795 No stop 01 57 30 =1903+097 21 07 08 37.0-141.8 2.0 19.7 146 3834 01 55 01 01 57 30 GRS1915 21 07 08 38.8-144.1 1.8 18.7 -4 3834 No stop 02 01 00 --- 21 10 38 38.5-143.1 1.9 19.2 206 3888 01 57 31 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 02 01 40 J1905+0952 21 11 18 36.7-140.5 2.1 20.2 36 3888 02 01 40 02 03 30 =1903+097 21 13 09 36.5-140.0 2.1 20.5 110 3916 02 01 41 02 03 30 GRS1915 21 13 09 38.3-142.3 1.9 19.5 -4 3916 No stop 02 07 00 --- 21 16 39 38.1-141.3 2.0 20.0 206 3970 02 03 31 02 07 00 J1905+0952 21 16 39 36.2-139.0 2.2 20.9 -4 3970 No stop 02 09 30 =1903+097 21 19 10 36.0-138.3 2.2 21.2 146 4009 02 07 01 02 09 30 GRS1915 21 19 10 37.8-140.6 2.0 20.3 -4 4009 No stop 02 13 00 --- 21 22 40 37.5-139.5 2.1 20.8 206 4063 02 09 31 02 13 40 J1905+0952 21 23 20 35.6-137.1 2.3 21.8 36 4063 02 13 40 02 15 30 =1903+097 21 25 11 35.5-136.6 2.3 22.0 110 4091 02 13 41 02 15 30 GRS1915 21 25 11 37.3-138.8 2.1 21.1 -4 4091 No stop 02 19 00 --- 21 28 41 37.0-137.8 2.2 21.5 206 4145 02 15 31 02 19 00 J1905+0952 21 28 41 35.1-135.6 2.4 22.4 -4 4145 No stop 02 21 30 =1903+097 21 31 12 34.9-134.9 2.4 22.7 146 4184 02 19 01 02 21 30 GRS1915 21 31 12 36.8-137.1 2.2 21.8 -4 4184 No stop 02 25 00 --- 21 34 42 36.5-136.1 2.3 22.3 206 4238 02 21 31 02 25 40 J1905+0952 21 35 22 34.5-133.8 2.5 23.2 36 4238 02 25 40 02 27 30 =1903+097 21 37 13 34.3-133.3 2.5 23.4 110 4266 02 25 41 02 27 30 GRS1915 21 37 13 36.2-135.4 2.4 22.6 -4 4266 No stop 02 31 00 --- 21 40 43 35.9-134.4 2.4 23.0 206 4321 02 27 31 02 31 00 J1905+0952 21 40 43 34.0-132.3 2.6 23.8 -4 4321 No stop 02 33 30 =1903+097 21 43 14 33.7-131.6 2.6 24.0 146 4359 02 31 01 02 33 30 GRS1915 21 43 14 35.6-133.7 2.5 23.3 -4 4359 No stop 02 37 00 --- 21 46 44 35.3-132.7 2.5 23.7 206 4413 02 33 31 02 37 40 J1905+0952 21 47 24 33.3-130.5 2.7 24.5 36 4413 02 37 40 02 39 30 =1903+097 21 49 15 33.1-130.0 2.7 24.7 110 4442 02 37 41 02 39 30 GRS1915 21 49 15 35.1-132.1 2.6 23.9 -4 4442 No stop 02 43 00 --- 21 52 45 34.7-131.1 2.6 24.3 206 4496 02 39 31 02 43 00 J1905+0952 21 52 45 32.7-129.1 2.8 25.0 -4 4496 No stop 02 45 30 =1903+097 21 55 16 32.5-128.4 2.8 25.3 146 4534 02 43 01 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 02 45 30 J1913+0932 21 55 16 33.0-130.6 2.7 24.4 -4 4534 No stop 02 49 00 --- 21 58 46 32.6-129.7 2.7 24.8 206 4589 02 45 31 02 50 00 J1905+0952 21 59 46 32.0-127.2 2.9 25.7 56 4589 02 50 00 02 52 30 =1903+097 22 02 17 31.7-126.6 2.9 25.9 150 4627 02 50 01 02 52 30 GRS1915 22 02 17 33.7-128.5 2.8 25.3 -4 4627 No stop 02 56 00 --- 22 05 47 33.3-127.6 2.8 25.7 206 4681 02 52 31 02 56 00 J1905+0952 22 05 47 31.4-125.7 3.0 26.3 -4 4681 No stop 02 58 30 =1903+097 22 08 18 31.1-125.0 3.0 26.5 146 4720 02 56 01 02 58 30 GRS1915 22 08 18 33.1-126.9 2.9 25.9 -4 4720 No stop 03 02 00 --- 22 11 48 32.7-126.0 2.9 26.2 206 4774 02 58 31 03 02 40 J1905+0952 22 12 28 30.6-123.9 3.1 26.9 36 4774 03 02 40 03 04 30 =1903+097 22 14 19 30.4-123.5 3.1 27.0 110 4802 03 02 41 03 04 30 GRS1915 22 14 19 32.4-125.4 3.0 26.5 -4 4802 No stop 03 08 00 --- 22 17 49 32.0-124.4 3.0 26.8 206 4856 03 04 31 03 08 00 J1905+0952 22 17 49 30.0-122.6 3.2 27.3 -4 4856 No stop 03 10 30 =1903+097 22 20 20 29.7-122.0 3.2 27.5 146 4895 03 08 01 03 10 30 GRS1915 22 20 20 31.8-123.8 3.1 27.0 -4 4895 No stop 03 14 00 --- 22 23 50 31.4-122.9 3.1 27.3 206 4949 03 10 31 03 14 40 J1905+0952 22 24 30 29.3-120.9 3.3 27.9 36 4949 03 14 40 03 16 30 =1903+097 22 26 21 29.0-120.5 3.3 28.0 110 4978 03 14 41 03 16 30 GRS1915 22 26 21 31.1-122.3 3.2 27.5 -4 4978 No stop 03 20 00 --- 22 29 51 30.7-121.4 3.2 27.8 206 5032 03 16 31 03 20 00 J1905+0952 22 29 51 28.6-119.6 3.4 28.3 -4 5032 No stop 03 22 30 =1903+097 22 32 22 28.3-119.0 3.4 28.5 146 5070 03 20 01 03 22 30 GRS1915 22 32 22 30.4-120.7 3.3 28.0 -4 5070 No stop 03 26 00 --- 22 35 52 30.0-119.9 3.3 28.3 206 5124 03 22 31 03 26 40 J1905+0952 22 36 32 27.8-117.9 3.5 28.8 36 5124 03 26 40 03 28 30 =1903+097 22 38 23 27.6-117.5 3.5 28.9 110 5153 03 26 41 03 28 30 GRS1915 22 38 23 29.7-119.2 3.4 28.5 -4 5153 No stop 03 32 00 --- 22 41 53 29.3-118.4 3.4 28.7 206 5207 03 28 31 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 03 32 00 J1905+0952 22 41 53 27.2-116.6 3.6 29.1 -4 5207 No stop 03 34 30 =1903+097 22 44 24 26.9-116.0 3.6 29.3 146 5246 03 32 01 03 34 30 GRS1915 22 44 24 29.0-117.8 3.5 28.9 -4 5246 No stop 03 38 00 --- 22 47 54 28.6-116.9 3.5 29.2 206 5300 03 34 31 03 38 40 J1905+0952 22 48 34 26.4-115.0 3.7 29.6 36 5300 03 38 40 03 40 30 =1903+097 22 50 25 26.2-114.6 3.7 29.7 110 5328 03 38 41 03 40 30 GRS1915 22 50 25 28.3-116.3 3.6 29.3 -4 5328 No stop 03 44 00 --- 22 53 55 27.9-115.4 3.6 29.6 206 5382 03 40 31 03 44 00 J1905+0952 22 53 55 25.8-113.8 3.8 29.9 -4 5382 No stop 03 46 30 =1903+097 22 56 26 25.4-113.2 3.8 30.0 146 5421 03 44 01 03 46 30 J1913+0932 22 56 26 26.1-115.2 3.7 29.5 -4 5421 No stop 03 50 00 --- 22 59 56 25.7-114.3 3.8 29.7 206 5475 03 46 31 03 51 00 J1905+0952 23 00 56 24.9-112.1 3.9 30.3 56 5475 03 51 00 03 53 30 =1903+097 23 03 27 24.6-111.5 3.9 30.4 150 5513 03 51 01 03 53 30 GRS1915 23 03 27 26.7-113.2 3.8 30.2 -4 5513 No stop 03 57 00 --- 23 06 57 26.3-112.3 3.8 30.4 206 5568 03 53 31 03 57 00 J1905+0952 23 06 57 24.1-110.7 4.0 30.6 -4 5568 No stop 03 59 30 =1903+097 23 09 28 23.8-110.1 4.0 30.8 146 5606 03 57 01 03 59 30 GRS1915 23 09 28 25.9-111.7 3.9 30.5 -4 5606 No stop 04 03 00 --- 23 12 58 25.5-110.9 3.9 30.7 206 5660 03 59 31 04 03 40 J1905+0952 23 13 38 23.3-109.2 4.1 31.0 36 5660 04 03 40 04 05 30 =1903+097 23 15 29 23.1-108.7 4.1 31.0 110 5689 04 03 41 04 05 30 GRS1915 23 15 29 25.2-110.3 4.0 30.8 -4 5689 No stop 04 09 00 --- 23 18 59 24.7-109.5 4.0 31.0 206 5743 04 05 31 04 09 00 J1905+0952 23 18 59 22.6-107.9 4.2 31.2 -4 5743 No stop 04 11 30 =1903+097 23 21 30 22.3-107.4 4.2 31.3 146 5781 04 09 01 04 11 30 GRS1915 23 21 30 24.4-108.9 4.1 31.1 -4 5781 No stop 04 15 00 --- 23 25 00 24.0-108.1 4.1 31.3 206 5836 04 11 31 04 15 40 J1905+0952 23 25 40 21.8-106.4 4.3 31.5 36 5836 04 15 40 04 17 30 =1903+097 23 27 31 21.5-106.0 4.3 31.6 110 5864 04 15 41 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 04 17 30 GRS1915 23 27 31 23.7-107.5 4.2 31.4 -4 5864 No stop 04 21 00 --- 23 31 01 23.2-106.7 4.2 31.6 206 5918 04 17 31 04 21 00 J1905+0952 23 31 01 21.1-105.2 4.4 31.7 -4 5918 No stop 04 23 30 =1903+097 23 33 32 20.7-104.6 4.4 31.8 146 5957 04 21 01 04 23 30 GRS1915 23 33 32 22.9-106.2 4.3 31.7 -4 5957 No stop 04 27 00 --- 23 37 02 22.4-105.4 4.3 31.8 206 6011 04 23 31 04 27 40 J1905+0952 23 37 42 20.2-103.7 4.5 31.9 36 6011 04 27 40 04 29 30 =1903+097 23 39 33 20.0-103.3 4.5 32.0 110 6039 04 27 41 04 29 30 GRS1915 23 39 33 22.1-104.8 4.4 31.9 -4 6039 No stop 04 33 00 --- 23 43 03 21.7-104.0 4.4 32.0 206 6093 04 29 31 04 33 00 J1905+0952 23 43 03 19.5-102.5 4.6 32.1 -4 6093 No stop 04 35 30 =1903+097 23 45 34 19.2-102.0 4.6 32.2 146 6132 04 33 01 04 35 30 GRS1915 23 45 34 21.3-103.5 4.5 32.1 -4 6132 No stop 04 39 00 --- 23 49 04 20.9-102.7 4.5 32.2 206 6186 04 35 31 04 39 40 J1905+0952 23 49 44 18.6-101.1 4.7 32.3 36 6186 04 39 40 04 41 30 =1903+097 23 51 35 18.4-100.6 4.7 32.4 110 6214 04 39 41 04 41 30 GRS1915 23 51 35 20.5-102.1 4.6 32.3 -4 6214 No stop 04 45 00 --- 23 55 05 20.1-101.4 4.6 32.4 206 6268 04 41 31 04 45 00 J1905+0952 23 55 05 17.9 -99.9 4.8 32.4 -4 6268 No stop 04 47 30 =1903+097 23 57 36 17.6 -99.3 4.8 32.5 146 6307 04 45 01 04 47 30 J1913+0932 23 57 36 18.3-101.2 4.7 32.3 -4 6307 No stop 04 51 00 --- 00 01 06 17.9-100.4 4.8 32.4 206 6361 04 47 31 04 52 00 J1905+0952 00 02 06 17.0 -98.4 4.9 32.6 56 6361 04 52 00 04 54 30 =1903+097 00 04 37 16.6 -97.8 5.0 32.7 150 6400 04 52 01 04 54 30 GRS1915 00 04 37 18.8 -99.3 4.8 32.6 -4 6400 No stop 04 58 00 --- 00 08 07 18.4 -98.5 4.9 32.7 206 6454 04 54 31 04 58 00 J1905+0952 00 08 07 16.2 -97.1 5.0 32.7 -4 6454 No stop 05 00 30 =1903+097 00 10 38 15.8 -96.5 5.1 32.8 146 6492 04 58 01 05 00 30 GRS1915 00 10 38 18.0 -98.0 4.9 32.8 -4 6492 No stop 05 04 00 --- 00 14 08 17.6 -97.2 5.0 32.8 206 6547 05 00 31 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 ---------------------------------------------------------------------------------------- --- Thu 17 Jun 2021 Day 168 --- 05 04 40 J1905+0952 00 14 48 15.3 -95.6 5.1 32.8 36 6547 05 04 40 05 06 30 =1903+097 00 16 39 15.0 -95.2 5.2 32.8 110 6575 05 04 41 05 06 30 GRS1915 00 16 39 17.2 -96.7 5.0 32.9 -4 6575 No stop 05 10 00 --- 00 20 09 16.8 -95.9 5.1 32.9 206 6629 05 06 31 05 10 00 J1905+0952 00 20 09 14.6 -94.5 5.2 32.9 -4 6629 No stop 05 12 30 =1903+097 00 22 40 14.2 -93.9 5.3 32.9 146 6668 05 10 01 05 12 30 GRS1915 00 22 40 16.4 -95.4 5.1 33.0 -4 6668 No stop 05 16 00 --- 00 26 10 16.0 -94.6 5.2 33.0 206 6722 05 12 31 05 16 40 J1905+0952 00 26 50 13.7 -93.0 5.3 32.9 36 6722 05 16 40 05 18 30 =1903+097 00 28 41 13.4 -92.7 5.4 33.0 110 6750 05 16 41 05 18 30 J1913+0932 00 28 41 14.2 -94.5 5.2 32.9 -4 6750 No stop 05 21 00 --- 00 31 11 13.9 -93.9 5.3 32.9 146 6789 05 18 31 05 21 00 J1905+0952 00 31 11 13.1 -92.1 5.4 33.0 -4 6789 No stop 05 23 30 =1903+097 00 33 42 12.8 -91.6 5.5 33.0 146 6827 05 21 01 05 23 30 J2253+1608 00 33 42 44.8-145.6 1.6 18.4 -30 6827 No stop 05 30 00 =3C454.3 00 40 13 44.3-143.6 1.8 19.4 360 6928 05 23 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess221.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: 12 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: 6 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: 6 14 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 12.613599 0.00 GRS1915+105 10 51 26.57111 * 10 56 44.62477 10 58 57.34646 0.00 From catalog imbedded in main SCHED input file. * J1913+0932 19 11 00.869981 * 19 13 24.025348 19 14 25.756814 0.00 09 27 34.81592 * 09 32 45.37648 09 34 55.17469 0.00 From catalog imbedded in main SCHED input file. 1758+388 17 58 44.703954 * 18 00 24.765363 18 01 08.766849 0.01 * J1800+3848 38 48 32.47350 * 38 48 30.69748 38 48 27.99045 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 41.444755 0.13 * J1905+0952 09 47 30.15815 * 09 52 08.40750 09 54 04.60661 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 55 00.676644 0.65 * J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 33.13978 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 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 3.908 526.698 J1913+0932 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 0.433 53.886 J1800+3848 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 0.167 23.790 J1905+0952 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 2.853 368.153 J2253+1608 sess221.C2048 1 2 3 4 5 6 8 9 10 11 12 15 0.108 8.729 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 138.8 J1913+0932 140.2 J1800+3848 117.7 J1905+0952 140.9 J2253+1608 94.1 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