COVER INFORMATION Station: URUMQI (Code Ur ) 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 URUMQI (Code Ur ) 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: 210.49 210.49 210.49 210.49 274.49 274.49 274.49 274.49 338.49 338.49 338.49 338.49 402.49 402.49 402.49 402.49 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 21 00 11 56.4 277.7 3.0 67.4 0 0 21 30 00 21 35 00 =1758+388 21 05 12 55.5 278.4 3.1 67.1 300 77 21 30 01 21 37 00 J1905+0952 21 07 13 47.4 227.0 2.0 32.6 64 77 21 37 00 21 39 30 =1903+097 21 09 43 47.1 227.7 2.1 33.0 150 115 21 37 01 21 39 30 GRS1915 21 09 43 49.3 225.7 1.9 31.9 -7 115 No stop 21 43 00 --- 21 13 13 48.8 226.8 2.0 32.6 203 169 21 39 31 21 43 40 J1905+0952 21 13 54 46.5 229.0 2.1 33.8 33 169 21 43 40 21 45 30 =1903+097 21 15 44 46.3 229.5 2.2 34.1 110 197 21 43 41 21 45 30 GRS1915 21 15 44 48.5 227.6 2.0 33.1 -7 197 No stop 21 49 00 --- 21 19 14 48.0 228.6 2.1 33.7 203 251 21 45 31 21 49 00 J1905+0952 21 19 14 45.8 230.6 2.2 34.7 -7 251 No stop 21 51 30 =1903+097 21 21 45 45.4 231.3 2.3 35.1 143 290 21 49 01 21 51 30 GRS1915 21 21 45 47.7 229.4 2.1 34.1 -7 290 No stop 21 55 00 --- 21 25 15 47.2 230.4 2.2 34.7 203 344 21 51 31 21 55 40 J1905+0952 21 25 56 44.9 232.5 2.3 35.8 33 344 21 55 40 21 57 30 =1903+097 21 27 46 44.6 233.0 2.4 36.0 110 372 21 55 41 21 57 30 GRS1915 21 27 46 46.8 231.2 2.2 35.2 -7 372 No stop 22 01 00 --- 21 31 16 46.3 232.2 2.3 35.7 203 426 21 57 31 22 01 00 J1905+0952 21 31 16 44.1 234.0 2.4 36.6 -8 426 No stop 22 03 30 =1903+097 21 33 47 43.7 234.7 2.5 36.9 142 464 22 01 01 22 03 30 GRS1915 21 33 47 46.0 232.9 2.3 36.1 -7 464 No stop 22 07 00 --- 21 37 17 45.5 233.9 2.4 36.7 203 518 22 03 31 22 07 40 J1905+0952 21 37 58 43.1 235.8 2.5 37.5 32 518 22 07 40 22 09 30 =1903+097 21 39 48 42.8 236.3 2.6 37.8 110 546 22 07 41 22 09 30 GRS1915 21 39 48 45.1 234.6 2.4 37.1 -8 546 No stop 22 13 00 --- 21 43 18 44.6 235.6 2.5 37.6 202 600 22 09 31 Schedule for URUMQI (Code Ur ) 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 21 43 18 42.3 237.2 2.6 38.3 -8 600 No stop 22 15 30 =1903+097 21 45 49 41.9 237.9 2.7 38.6 142 638 22 13 01 22 15 30 GRS1915 21 45 49 44.2 236.3 2.5 37.9 -8 638 No stop 22 19 00 --- 21 49 19 43.7 237.2 2.6 38.4 202 692 22 15 31 22 19 40 J1905+0952 21 50 00 41.2 238.9 2.7 39.1 32 692 22 19 40 22 21 30 =1903+097 21 51 50 41.0 239.4 2.8 39.3 110 721 22 19 41 22 21 30 GRS1915 21 51 50 43.3 237.9 2.6 38.8 -8 721 No stop 22 25 00 --- 21 55 20 42.7 238.8 2.7 39.2 202 774 22 21 31 22 25 00 J1905+0952 21 55 20 40.4 240.3 2.8 39.8 -8 774 No stop 22 27 30 =1903+097 21 57 51 40.0 240.9 2.9 40.1 142 813 22 25 01 22 27 30 GRS1915 21 57 51 42.3 239.4 2.7 39.5 -8 813 No stop 22 31 00 --- 22 01 21 41.8 240.3 2.8 40.0 202 867 22 27 31 22 31 40 J1905+0952 22 02 01 39.3 241.9 2.9 40.5 32 867 22 31 40 22 33 30 =1903+097 22 03 52 39.1 242.4 3.0 40.7 110 895 22 31 41 22 33 30 J1913+0932 22 03 52 40.0 240.2 2.8 39.7 -6 895 No stop 22 37 00 --- 22 07 22 39.5 241.1 2.9 40.1 204 949 22 33 31 22 38 00 J1905+0952 22 08 23 38.3 243.4 3.0 41.2 54 949 22 38 00 22 40 30 =1903+097 22 10 53 37.9 244.0 3.1 41.5 150 987 22 38 01 22 40 30 GRS1915 22 10 53 40.3 242.7 2.9 41.1 -8 987 No stop 22 44 00 --- 22 14 24 39.7 243.5 3.0 41.4 202 1041 22 40 31 22 44 00 J1905+0952 22 14 24 37.3 244.8 3.1 41.8 -8 1041 No stop 22 46 30 =1903+097 22 16 54 36.9 245.4 3.2 42.1 142 1079 22 44 01 22 46 30 GRS1915 22 16 54 39.3 244.1 3.0 41.7 -8 1079 No stop 22 50 00 --- 22 20 25 38.7 244.9 3.1 42.0 202 1133 22 46 31 22 50 40 J1905+0952 22 21 05 36.2 246.4 3.2 42.4 32 1133 22 50 40 22 52 30 =1903+097 22 22 55 35.9 246.8 3.3 42.6 110 1162 22 50 41 22 52 30 GRS1915 22 22 55 38.3 245.5 3.1 42.3 -8 1162 No stop 22 56 00 --- 22 26 25 37.7 246.3 3.2 42.6 202 1215 22 52 31 22 56 00 J1905+0952 22 26 25 35.3 247.6 3.3 42.9 -8 1215 No stop 22 58 30 =1903+097 22 28 56 34.9 248.1 3.4 43.1 142 1254 22 56 01 Schedule for URUMQI (Code Ur ) 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 22 28 56 37.3 246.9 3.2 42.8 -8 1254 No stop 23 02 00 --- 22 32 26 36.7 247.7 3.3 43.1 202 1308 22 58 31 23 02 40 J1905+0952 22 33 07 34.2 249.0 3.4 43.5 32 1308 23 02 40 23 04 30 =1903+097 22 34 57 33.9 249.4 3.5 43.6 110 1336 23 02 41 23 04 30 GRS1915 22 34 57 36.3 248.2 3.3 43.4 -8 1336 No stop 23 08 00 --- 22 38 27 35.7 249.0 3.4 43.6 202 1390 23 04 31 23 08 00 J1905+0952 22 38 27 33.3 250.2 3.5 43.9 -8 1390 No stop 23 10 30 =1903+097 22 40 58 32.9 250.7 3.6 44.0 142 1428 23 08 01 23 10 30 GRS1915 22 40 58 35.3 249.6 3.4 43.8 -8 1428 No stop 23 14 00 --- 22 44 28 34.7 250.3 3.5 44.1 202 1482 23 10 31 23 14 40 J1905+0952 22 45 09 32.2 251.6 3.6 44.3 32 1482 23 14 40 23 16 30 =1903+097 22 46 59 31.8 251.9 3.7 44.5 110 1510 23 14 41 23 16 30 GRS1915 22 46 59 34.3 250.9 3.5 44.3 -8 1510 No stop 23 20 00 --- 22 50 29 33.7 251.6 3.6 44.5 202 1564 23 16 31 23 20 00 J1905+0952 22 50 29 31.2 252.7 3.7 44.7 -8 1564 No stop 23 22 30 =1903+097 22 53 00 30.8 253.2 3.8 44.8 142 1603 23 20 01 23 22 30 GRS1915 22 53 00 33.2 252.1 3.6 44.7 -8 1603 No stop 23 26 00 --- 22 56 30 32.6 252.8 3.7 44.9 202 1656 23 22 31 23 26 40 J1905+0952 22 57 11 30.1 254.0 3.8 45.1 32 1656 23 26 40 23 28 30 =1903+097 22 59 01 29.8 254.4 3.9 45.2 110 1685 23 26 41 23 28 30 GRS1915 22 59 01 32.2 253.4 3.7 45.1 -8 1685 No stop 23 32 00 --- 23 02 31 31.6 254.1 3.8 45.3 202 1738 23 28 31 23 32 00 J1905+0952 23 02 31 29.1 255.1 3.9 45.4 -8 1738 No stop 23 34 30 =1903+097 23 05 02 28.7 255.6 4.0 45.5 142 1777 23 32 01 23 34 30 J1913+0932 23 05 02 29.8 253.8 3.8 45.0 -6 1777 No stop 23 38 00 --- 23 08 32 29.2 254.5 3.9 45.2 204 1831 23 34 31 23 39 00 J1905+0952 23 09 33 27.9 256.5 4.0 45.7 54 1831 23 39 00 23 41 30 =1903+097 23 12 03 27.5 257.0 4.1 45.9 150 1869 23 39 01 23 41 30 GRS1915 23 12 03 29.9 256.0 3.9 45.8 -8 1869 No stop 23 45 00 --- 23 15 34 29.3 256.7 4.0 46.0 202 1923 23 41 31 Schedule for URUMQI (Code Ur ) 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 23 15 34 26.8 257.6 4.1 46.0 -8 1923 No stop 23 47 30 =1903+097 23 18 04 26.4 258.1 4.2 46.1 142 1962 23 45 01 23 47 30 GRS1915 23 18 04 28.8 257.2 4.0 46.1 -8 1962 No stop 23 51 00 --- 23 21 35 28.2 257.8 4.1 46.3 202 2015 23 47 31 23 51 40 J1905+0952 23 22 15 25.7 258.9 4.3 46.3 32 2015 23 51 40 23 53 30 =1903+097 23 24 05 25.3 259.2 4.3 46.4 110 2044 23 51 41 23 53 30 GRS1915 23 24 05 27.8 258.3 4.1 46.4 -8 2044 No stop 23 57 00 --- 23 27 36 27.1 259.0 4.2 46.5 202 2097 23 53 31 23 57 00 J1905+0952 23 27 36 24.7 259.9 4.3 46.5 -8 2097 No stop 23 59 30 =1903+097 23 30 06 24.3 260.4 4.4 46.6 142 2136 23 57 01 --- Start: Wed 16 Jun 2021 Day 167 -- Stop: Thu 17 Jun 2021 Day 168 --- 23 59 30 GRS1915 23 30 06 26.7 259.5 4.2 46.6 -8 2136 No stop 00 03 00 --- 23 33 36 26.1 260.1 4.3 46.7 202 2190 23 59 31 00 03 40 J1905+0952 23 34 17 23.5 261.1 4.5 46.7 32 2190 00 03 40 00 05 30 =1903+097 23 36 07 23.2 261.5 4.5 46.8 110 2218 00 03 41 00 05 30 GRS1915 23 36 07 25.6 260.6 4.3 46.8 -8 2218 No stop 00 09 00 --- 23 39 37 25.0 261.2 4.4 46.9 202 2272 00 05 31 00 09 00 J1905+0952 23 39 37 22.5 262.1 4.5 46.9 -8 2272 No stop 00 11 30 =1903+097 23 42 08 22.1 262.6 4.6 46.9 142 2310 00 09 01 00 11 30 GRS1915 23 42 08 24.5 261.7 4.4 47.0 -8 2310 No stop 00 15 00 --- 23 45 38 23.9 262.3 4.5 47.1 202 2364 00 11 31 00 15 40 J1905+0952 23 46 19 21.3 263.3 4.7 47.0 32 2364 00 15 40 00 17 30 =1903+097 23 48 09 21.0 263.7 4.7 47.1 110 2392 00 15 41 00 17 30 GRS1915 23 48 09 23.5 262.8 4.5 47.2 -8 2392 No stop 00 21 00 --- 23 51 39 22.8 263.4 4.6 47.3 202 2446 00 17 31 00 21 00 J1905+0952 23 51 39 20.4 264.3 4.7 47.1 -8 2446 No stop 00 23 30 =1903+097 23 54 10 19.9 264.7 4.8 47.2 142 2485 00 21 01 00 23 30 GRS1915 23 54 10 22.4 263.9 4.6 47.3 -8 2485 No stop 00 27 00 --- 23 57 40 21.7 264.5 4.7 47.4 202 2538 00 23 31 Schedule for URUMQI (Code Ur ) 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 23 58 21 19.2 265.5 4.9 47.3 32 2538 00 27 40 00 29 30 =1903+097 00 00 11 18.8 265.8 4.9 47.3 110 2567 00 27 41 00 29 30 GRS1915 00 00 11 21.3 265.0 4.7 47.4 -8 2567 No stop 00 33 00 --- 00 03 41 20.7 265.6 4.8 47.5 202 2621 00 29 31 00 33 00 J1905+0952 00 03 41 18.2 266.4 4.9 47.3 -8 2621 No stop 00 35 30 =1903+097 00 06 12 17.7 266.9 5.0 47.4 142 2659 00 33 01 00 35 30 J1913+0932 00 06 12 18.9 265.3 4.9 47.2 -6 2659 No stop 00 39 00 --- 00 09 42 18.3 265.9 4.9 47.2 204 2713 00 35 31 00 40 00 J1905+0952 00 10 43 16.9 267.7 5.1 47.4 54 2713 00 40 00 00 42 30 =1903+097 00 13 13 16.5 268.1 5.1 47.4 150 2751 00 40 01 00 42 30 GRS1915 00 13 13 18.9 267.3 5.0 47.6 -8 2751 No stop 00 46 00 --- 00 16 44 18.3 267.9 5.0 47.6 202 2805 00 42 31 00 46 00 J1905+0952 00 16 44 15.8 268.7 5.2 47.4 -8 2805 No stop 00 48 30 =1903+097 00 19 14 15.4 269.1 5.2 47.4 142 2844 00 46 01 00 48 30 GRS1915 00 19 14 17.8 268.3 5.1 47.6 -8 2844 No stop 00 52 00 --- 00 22 45 17.2 268.9 5.1 47.7 202 2897 00 48 31 00 52 40 J1905+0952 00 23 25 14.6 269.9 5.3 47.4 32 2897 00 52 40 00 54 30 =1903+097 00 25 15 14.3 270.2 5.3 47.4 110 2926 00 52 41 00 54 30 GRS1915 00 25 15 16.7 269.4 5.2 47.7 -8 2926 No stop 00 58 00 --- 00 28 46 16.1 270.0 5.2 47.7 202 2979 00 54 31 00 58 00 J1905+0952 00 28 46 13.7 270.8 5.4 47.4 -8 2979 No stop 01 00 30 =1903+097 00 31 16 13.2 271.2 5.4 47.4 142 3018 00 58 01 01 00 30 GRS1915 00 31 16 15.7 270.4 5.3 47.7 -8 3018 No stop 01 04 00 --- 00 34 47 15.0 271.0 5.3 47.7 202 3072 01 00 31 01 04 40 J1905+0952 00 35 27 12.4 271.9 5.5 47.4 32 3072 01 04 40 01 06 30 =1903+097 00 37 17 12.1 272.2 5.5 47.4 110 3100 01 04 41 01 06 30 GRS1915 00 37 17 14.6 271.4 5.4 47.6 -8 3100 No stop 01 10 00 --- 00 40 48 13.9 272.0 5.4 47.6 202 3154 01 06 31 01 10 00 J1905+0952 00 40 48 11.5 272.8 5.6 47.4 -8 3154 No stop 01 12 30 =1903+097 00 43 18 11.0 273.3 5.6 47.3 142 3192 01 10 01 Schedule for URUMQI (Code Ur ) 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 00 43 18 13.5 272.5 5.5 47.6 -8 3192 No stop 01 16 00 --- 00 46 48 12.8 273.0 5.5 47.6 202 3246 01 12 31 01 16 40 J1905+0952 00 47 29 10.3 274.0 5.7 47.3 32 3246 01 16 40 01 18 30 =1903+097 00 49 19 9.9 274.3 5.7 47.3 110 3274 01 16 41 01 18 30 GRS1915 00 49 19 12.4 273.5 5.6 47.6 -8 3274 No stop 01 22 00 --- 00 52 49 11.7 274.1 5.6 47.5 202 3328 01 18 31 01 22 00 J1905+0952 00 52 49 9.3 274.9 5.8 47.2 -8 3328 No stop 01 24 30 =1903+097 00 55 20 8.8 275.3 5.8 47.2 142 3367 01 22 01 01 24 30 GRS1915 00 55 20 11.3 274.5 5.7 47.5 -8 3367 No stop 01 28 00 --- 00 58 50 10.7 275.1 5.7 47.4 202 3421 01 24 31 01 28 40 J1905+0952 00 59 31 8.1 276.0 5.9 47.1 32 3421 01 28 40 01 30 30 =1903+097 01 01 21 7.8 276.3 5.9 47.1 110 3449 01 28 41 01 30 30 GRS1915 01 01 21 10.2 275.5 5.8 47.4 -8 3449 No stop 01 34 00 --- 01 04 51 9.6 276.1 5.8 47.3 202 3503 01 30 31 01 34 40 J1905+0952 01 05 32 7.0 277.0 6.0 47.0 32 3503 01 34 40 01 36 30 =1903+097 01 07 22 6.7 277.3 6.0 46.9 110 3531 01 34 41 01 36 30 J1913+0932 01 07 22 7.8 275.8 5.9 47.1 -6 3531 No stop 01 39 00 --- 01 09 52 7.4 276.2 5.9 47.0 144 3569 01 36 31 01 39 00 J1905+0952 01 09 52 6.2 277.8 6.1 46.9 -6 3569 No stop 01 41 30 =1903+097 01 12 23 5.8 278.2 6.1 46.8 144 3608 01 39 01 01 42 00 J1800+3848 01 12 53 14.9 309.9 7.2 45.6 -6 3608 01 42 00 01 47 00 =1758+388 01 17 54 14.2 310.6 7.3 45.0 294 3685 01 42 01 01 51 30 GRS1915 01 22 24 6.4 279.1 6.1 46.9 234 3685 01 51 30 01 55 00 --- 01 25 55 5.8 279.7 6.2 46.8 210 3738 01 51 31 01 57 30 GRS1915 01 28 25 5.3 280.1 6.2 46.7 148 3738 01 57 30 02 01 00 --- 01 31 56 4.7 280.7 6.3 D 46.6 0 3792 01 57 31 05 23 30 J2253+1608 04 54 59 11.1 281.9 6.0 47.7 12063 3792 05 23 30 05 30 00 =3C454.3 05 01 30 10.0 283.0 6.1 47.4 390 3892 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: 13 Station: URUMQI Total bit rate: 2048 Format: MARK5B 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= 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 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 = A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 8 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= 210.49 210.49 210.49 210.49 274.49 274.49 274.49 274.49 338.49 338.49 338.49 338.49 402.49 402.49 402.49 402.49 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: 8 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * GRS1915 19 12 49.958613 * 19 15 11.544821 19 16 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