COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs Exp. Code: bn021ae Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: Neil Nagar Address: Postbus 800 9700 AV Groningen The Netherlands Phone: 1 EMAIL: nagar@astro.rug.nl Fax: Phone during observation: 1 Observing mode: continuum Notes: Target coordinates from previous VLBA observations Fringe finders: J1642+3948, can also use J1751+0939 Phase-referencing used for all sources This subscript for NGC6500. Run up to 6 times Schedule for VLBA_HN (Code Hn ) Page 2 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- Next scan frequencies: 4971.49 4979.49 4987.49 4995.49 Next BBC frequencies: 871.49 879.49 887.49 895.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 18 01 04 J1751+0939 19 24 32 51.0 218.2 1.5 27.3 0 1 1 0 18 01 04 18 03 03 =1749+096 19 26 32 50.8 218.8 1.6 27.8 120 F 1 798 18 03 03 J1752+1734 19 26 32 57.8 225.3 1.6 33.1 -20 1 1 798 18 03 03 18 04 03 =1750+175 19 27 32 57.7 225.7 1.6 33.3 40 F 1 1197 18 04 03 NGC6500 19 27 32 58.7 225.2 1.5 33.2 -8 1 1 1197 18 04 03 18 06 03 --- 19 29 32 58.5 226.0 1.6 33.7 112 F 1 1995 18 06 03 J1751+0939 19 29 32 50.5 219.9 1.6 28.4 -22 1 1 1995 18 06 03 18 07 03 =1749+096 19 30 32 50.3 220.2 1.6 28.7 38 F 1 2393 18 07 03 J1752+1734 19 30 32 57.3 226.8 1.6 34.0 -20 1 1 2393 18 07 03 18 08 03 =1750+175 19 31 32 57.1 227.1 1.6 34.3 40 F 1 2792 18 08 03 NGC6500 19 31 32 58.2 226.8 1.6 34.2 -8 1 1 2792 18 08 03 18 10 02 --- 19 33 32 57.9 227.5 1.6 34.7 112 F 1 3590 18 10 02 J1751+0939 19 33 32 50.0 221.2 1.7 29.3 -22 1 1 3590 18 10 02 18 11 02 =1749+096 19 34 32 49.9 221.6 1.7 29.5 38 F 1 3989 18 11 02 J1752+1734 19 34 32 56.7 228.2 1.7 34.9 -20 1 1 3989 18 11 02 18 12 02 =1750+175 19 35 32 56.6 228.6 1.7 35.2 40 F 1 4388 18 12 02 NGC6500 19 35 32 57.7 228.2 1.7 35.1 -8 1 1 4388 18 12 02 18 14 02 --- 19 37 32 57.4 228.9 1.7 35.6 112 F 1 5186 18 14 02 J1751+0939 19 37 32 49.5 222.6 1.8 30.1 -22 1 1 5186 18 14 02 18 15 02 =1749+096 19 38 32 49.4 222.9 1.8 30.4 38 F 1 5585 18 15 02 J1752+1734 19 38 32 56.2 229.6 1.8 35.8 -20 1 1 5585 18 15 02 18 16 01 =1750+175 19 39 32 56.0 230.0 1.8 36.0 40 F 1 5984 18 16 01 NGC6500 19 39 32 57.1 229.7 1.7 36.0 -8 1 1 5984 18 16 01 18 18 01 --- 19 41 32 56.8 230.4 1.8 36.4 112 F 1 6781 18 18 01 J1751+0939 19 41 32 49.0 223.9 1.8 31.0 -22 1 1 6781 18 18 01 18 19 01 =1749+096 19 42 32 48.9 224.2 1.8 31.2 38 F 1 7180 Schedule for VLBA_HN (Code Hn ) Page 3 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- 18 19 01 J1752+1734 19 42 32 55.6 231.0 1.8 36.6 -19 1 1 7180 18 19 01 18 20 01 =1750+175 19 43 32 55.5 231.3 1.8 36.8 40 F 1 7579 18 20 01 NGC6500 19 43 32 56.5 231.0 1.8 36.9 -8 1 1 7579 18 20 01 18 22 00 --- 19 45 32 56.3 231.7 1.8 37.3 112 F 1 8377 18 22 00 J1751+0939 19 45 32 48.5 225.1 1.9 31.8 -22 1 1 8377 18 22 00 18 23 00 =1749+096 19 46 32 48.4 225.4 1.9 31.9 38 F 1 8776 18 23 00 J1752+1734 19 46 32 55.0 232.3 1.9 37.4 -19 1 1 8776 18 23 00 18 24 00 =1750+175 19 47 32 54.9 232.7 1.9 37.6 40 F 1 9175 18 24 00 NGC6500 19 47 32 56.0 232.4 1.9 37.7 -8 1 1 9175 18 24 00 18 26 00 --- 19 49 32 55.7 233.1 1.9 38.1 112 F 1 9973 18 26 00 J1751+0939 19 49 32 48.0 226.4 2.0 32.5 -21 1 1 9973 18 26 00 18 27 00 =1749+096 19 50 32 47.8 226.7 2.0 32.7 38 F 1 10372 18 27 00 J1752+1734 19 50 32 54.5 233.6 2.0 38.2 -19 1 1 10372 18 27 00 18 27 59 =1750+175 19 51 32 54.3 234.0 2.0 38.4 41 F 1 10771 18 27 59 NGC6500 19 51 32 55.4 233.7 1.9 38.5 -8 1 1 10771 18 27 59 18 29 59 --- 19 53 32 55.1 234.4 2.0 38.8 112 F 1 11568 18 29 59 J1751+0939 19 53 32 47.4 227.6 2.0 33.3 -21 1 1 11568 18 29 59 18 30 59 =1749+096 19 54 32 47.3 227.9 2.0 33.4 38 F 1 11967 18 30 59 J1752+1734 19 54 32 53.9 234.9 2.0 38.9 -19 1 1 11967 18 30 59 18 31 59 =1750+175 19 55 32 53.7 235.2 2.0 39.1 41 F 1 12366 18 31 59 J1759+2343 19 55 32 59.3 240.7 1.9 44.2 -17 1 1 12366 18 31 59 18 32 59 =1756+237 19 56 32 59.1 241.0 2.0 44.4 43 F 1 12765 18 32 59 J1745+1814 19 56 32 53.0 238.3 2.2 41.0 -18 1 1 12765 18 32 59 18 33 58 =1743+182 19 57 32 52.9 238.6 2.2 41.2 42 F 1 13164 18 33 58 J1745+1720 19 57 32 52.1 237.8 2.2 40.4 -7 1 1 13164 18 33 58 18 34 58 =1743+173 19 58 32 52.0 238.1 2.2 40.6 52 F 1 13563 18 34 58 J1728+1215 19 58 32 45.4 238.0 2.5 39.5 -19 1 1 13563 18 34 58 18 35 58 =1725+123 19 59 32 45.2 238.3 2.5 39.6 41 F 1 13962 Schedule for VLBA_HN (Code Hn ) Page 4 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- 18 37 59 J1751+0939 20 01 33 46.3 230.0 2.2 34.7 109 1 1 13962 18 37 59 18 38 59 =1749+096 20 02 33 46.2 230.3 2.2 34.8 60 F 1 14361 18 38 59 J1752+1734 20 02 33 52.6 237.4 2.2 40.3 -19 1 1 14361 18 38 59 18 39 58 =1750+175 20 03 33 52.5 237.7 2.2 40.5 41 F 1 14760 18 39 58 NGC6500 20 03 33 53.6 237.5 2.1 40.6 -8 1 1 14760 18 39 58 18 41 58 --- 20 05 33 53.3 238.1 2.2 40.9 112 F 1 15557 18 41 58 J1751+0939 20 05 33 45.8 231.2 2.2 35.3 -21 1 1 15557 18 41 58 18 42 58 =1749+096 20 06 33 45.6 231.5 2.2 35.5 39 F 1 15956 18 42 58 J1752+1734 20 06 33 52.0 238.5 2.2 40.9 -19 1 1 15956 18 42 58 18 43 58 =1750+175 20 07 33 51.9 238.8 2.2 41.1 41 F 1 16355 18 43 58 NGC6500 20 07 33 52.9 238.7 2.2 41.2 -8 1 1 16355 18 43 58 18 45 57 --- 20 09 33 52.6 239.3 2.2 41.6 112 F 1 17153 18 45 57 J1751+0939 20 09 33 45.2 232.3 2.3 36.0 -21 1 2 17153 18 45 57 18 46 57 =1749+096 20 10 33 45.0 232.6 2.3 36.2 39 R 1 16754 18 46 57 J1752+1734 20 10 33 51.4 239.7 2.3 41.5 -19 1 2 16754 18 46 57 18 47 57 =1750+175 20 11 33 51.2 240.0 2.3 41.7 41 R 1 16355 18 47 57 NGC6500 20 11 33 52.3 239.9 2.3 41.9 -8 1 2 16355 18 47 57 18 49 57 --- 20 13 33 52.0 240.5 2.3 42.2 112 R 1 15557 18 49 57 J1751+0939 20 13 33 44.6 233.4 2.4 36.6 -21 1 2 15557 18 49 57 18 50 57 =1749+096 20 14 33 44.4 233.7 2.4 36.8 39 R 1 15159 18 50 57 J1752+1734 20 14 33 50.8 240.8 2.4 42.1 -19 1 2 15159 18 50 57 18 51 56 =1750+175 20 15 33 50.6 241.1 2.4 42.3 41 R 1 14760 18 51 56 NGC6500 20 15 33 51.7 241.0 2.3 42.4 -8 1 2 14760 18 51 56 18 53 56 --- 20 17 33 51.4 241.6 2.4 42.7 112 R 1 13962 18 53 56 J1751+0939 20 17 33 44.0 234.5 2.4 37.2 -21 1 2 13962 18 53 56 18 54 56 =1749+096 20 18 33 43.9 234.8 2.4 37.4 39 R 1 13563 18 54 56 J1752+1734 20 18 33 50.1 241.9 2.4 42.7 -19 1 2 13563 18 54 56 18 55 56 =1750+175 20 19 33 50.0 242.2 2.4 42.8 41 R 1 13164 Schedule for VLBA_HN (Code Hn ) Page 5 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- 18 55 56 NGC6500 20 19 33 51.0 242.2 2.4 43.0 -8 1 2 13164 18 55 56 18 57 55 --- 20 21 33 50.7 242.7 2.4 43.3 112 R 1 12366 18 57 55 J1751+0939 20 21 33 43.4 235.6 2.5 37.8 -21 1 2 12366 18 57 55 18 58 55 =1749+096 20 22 33 43.2 235.9 2.5 37.9 39 R 1 11967 18 58 55 J1752+1734 20 22 33 49.5 243.0 2.5 43.2 -18 1 2 11967 18 58 55 18 59 55 =1750+175 20 23 33 49.3 243.3 2.5 43.3 41 R 1 11568 18 59 55 J1759+2343 20 23 33 54.6 248.8 2.4 48.2 -17 1 2 11568 18 59 55 19 00 55 =1756+237 20 24 33 54.5 249.1 2.4 48.3 43 R 1 11169 19 00 55 J1745+1814 20 24 33 48.5 246.0 2.6 44.8 -18 1 2 11169 19 00 55 19 01 55 =1743+182 20 25 33 48.3 246.3 2.7 44.9 42 R 1 10771 19 01 55 J1745+1720 20 25 33 47.6 245.4 2.7 44.2 -7 1 2 10771 19 01 55 19 02 55 =1743+173 20 26 33 47.5 245.7 2.7 44.3 52 R 1 10372 19 02 55 J1728+1215 20 26 33 40.9 245.1 3.0 42.8 -19 1 2 10372 19 02 55 19 03 54 =1725+123 20 27 33 40.7 245.3 3.0 42.9 41 R 1 9973 19 05 55 J1642+3948 20 29 34 48.2 285.7 3.8 66.5 88 1 2 9973 19 05 55 19 08 55 =1641+399 20 32 34 47.7 286.1 3.8 66.3 180 R 1 8776 19 08 55 J1751+0939 20 32 34 41.7 238.5 2.7 39.3 -38 1 2 8776 19 08 55 19 11 24 =1749+096 20 35 04 41.3 239.1 2.7 39.6 112 R 1 7779 19 11 24 J1752+1734 20 35 04 47.4 246.3 2.7 44.7 -18 1 2 7779 19 11 24 19 12 24 =1750+175 20 36 04 47.2 246.5 2.7 44.8 42 R 1 7380 19 12 24 NGC6500 20 36 04 48.3 246.5 2.7 45.0 -8 1 2 7380 19 12 24 19 14 24 --- 20 38 04 48.0 247.0 2.7 45.2 112 R 1 6582 19 14 24 J1751+0939 20 38 04 40.8 239.9 2.8 40.0 -20 1 2 6582 19 14 24 19 15 24 =1749+096 20 39 04 40.7 240.1 2.8 40.1 40 R 1 6183 19 15 24 J1752+1734 20 39 04 46.7 247.3 2.8 45.1 -18 1 2 6183 19 15 24 19 16 23 =1750+175 20 40 04 46.6 247.5 2.8 45.2 42 R 1 5784 19 16 23 NGC6500 20 40 04 47.6 247.5 2.7 45.4 -8 1 2 5784 19 16 23 19 18 23 --- 20 42 04 47.3 248.0 2.8 45.7 112 R 1 4986 Schedule for VLBA_HN (Code Hn ) Page 6 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- 19 18 23 J1751+0939 20 42 04 40.2 240.9 2.8 40.4 -20 1 2 4986 19 18 23 19 19 23 =1749+096 20 43 04 40.0 241.1 2.9 40.6 40 R 1 4587 19 19 23 J1752+1734 20 43 04 46.0 248.2 2.8 45.5 -18 1 2 4587 19 19 23 19 20 23 =1750+175 20 44 04 45.9 248.5 2.9 45.6 42 R 1 4189 19 20 23 NGC6500 20 44 04 47.0 248.5 2.8 45.9 -8 1 2 4189 19 20 23 19 22 22 --- 20 46 04 46.6 249.0 2.8 46.0 112 R 1 3391 19 22 22 J1751+0939 20 46 04 39.6 241.9 2.9 40.9 -20 1 2 3391 19 22 22 19 23 22 =1749+096 20 47 04 39.4 242.1 2.9 41.0 40 R 1 2992 19 23 22 J1752+1734 20 47 04 45.4 249.2 2.9 45.9 -18 1 2 2992 19 23 22 19 24 22 =1750+175 20 48 04 45.2 249.4 2.9 46.0 42 R 1 2593 19 24 22 NGC6500 20 48 04 46.3 249.4 2.9 46.2 -8 1 2 2593 19 24 22 19 26 22 --- 20 50 04 45.9 249.9 2.9 46.4 112 R 1 1795 19 26 22 J1751+0939 20 50 04 38.9 242.8 3.0 41.3 -20 1 2 1795 19 26 22 19 27 22 =1749+096 20 51 04 38.8 243.0 3.0 41.5 40 R 1 1396 19 27 22 J1752+1734 20 51 04 44.7 250.1 3.0 46.2 -18 1 2 1396 19 27 22 19 28 21 =1750+175 20 52 04 44.5 250.3 3.0 46.3 42 R 1 997 19 28 21 NGC6500 20 52 04 45.6 250.4 2.9 46.6 -8 1 2 997 19 28 21 19 30 21 --- 20 54 04 45.2 250.8 3.0 46.8 112 R 1 199 19 30 21 J1751+0939 20 54 04 38.3 243.8 3.0 41.8 -20 1 3 199 19 30 21 19 31 21 =1749+096 20 55 04 38.1 244.0 3.1 41.9 40 F 1 598 19 31 21 J1752+1734 20 55 04 44.0 251.0 3.0 46.6 -18 1 3 598 19 31 21 19 32 21 =1750+175 20 56 04 43.8 251.3 3.1 46.7 42 F 1 997 19 32 21 NGC6500 20 56 04 44.9 251.3 3.0 46.9 -8 1 3 997 19 32 21 19 34 20 --- 20 58 04 44.6 251.8 3.0 47.1 112 F 1 1795 19 34 20 J1751+0939 20 58 04 37.6 244.7 3.1 42.2 -20 1 3 1795 19 34 20 19 35 20 =1749+096 20 59 04 37.4 244.9 3.1 42.3 40 F 1 2194 19 35 20 J1752+1734 20 59 04 43.3 251.9 3.1 46.9 -18 1 3 2194 19 35 20 19 36 20 =1750+175 21 00 04 43.1 252.2 3.1 47.0 42 F 1 2593 Schedule for VLBA_HN (Code Hn ) Page 7 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- 19 36 20 NGC6500 21 00 04 44.2 252.2 3.1 47.3 -8 1 3 2593 19 36 20 19 38 20 --- 21 02 04 43.9 252.7 3.1 47.4 112 F 1 3391 19 38 20 J1751+0939 21 02 04 36.9 245.6 3.2 42.6 -20 1 3 3391 19 38 20 19 39 20 =1749+096 21 03 04 36.8 245.8 3.2 42.7 40 F 1 3790 19 39 20 J1752+1734 21 03 04 42.6 252.8 3.2 47.2 -18 1 3 3790 19 39 20 19 40 19 =1750+175 21 04 04 42.4 253.0 3.2 47.3 42 F 1 4189 19 40 19 J1759+2343 21 04 04 47.5 258.3 3.1 51.6 -16 1 3 4189 19 40 19 19 41 19 =1756+237 21 05 04 47.4 258.5 3.1 51.6 44 F 1 4587 19 41 19 J1745+1814 21 05 04 41.5 255.4 3.3 48.2 -18 1 3 4587 19 41 19 19 42 19 =1743+182 21 06 04 41.3 255.6 3.3 48.3 42 F 1 4986 19 42 19 J1745+1720 21 06 04 40.6 254.8 3.3 47.7 -7 1 3 4986 19 42 19 19 43 19 =1743+173 21 07 04 40.5 255.0 3.4 47.8 53 F 1 5385 19 43 19 J1728+1215 21 07 04 33.9 254.0 3.6 46.1 -19 1 3 5385 19 43 19 19 44 19 =1725+123 21 08 04 33.7 254.2 3.7 46.1 41 F 1 5784 19 44 19 J1751+0939 21 08 04 35.9 246.9 3.3 43.1 -11 1 3 5784 19 44 19 19 45 19 =1749+096 21 09 04 35.8 247.2 3.3 43.2 49 F 1 6183 19 45 19 J1752+1734 21 09 04 41.5 254.1 3.3 47.6 -18 1 3 6183 19 45 19 19 46 19 =1750+175 21 10 04 41.4 254.3 3.3 47.7 42 F 1 6582 19 46 19 NGC6500 21 10 04 42.5 254.4 3.2 48.0 -8 1 3 6582 19 46 19 19 48 18 --- 21 12 04 42.1 254.8 3.3 48.1 112 F 1 7380 19 48 18 J1751+0939 21 12 04 35.3 247.8 3.3 43.5 -20 1 3 7380 19 48 18 19 49 18 =1749+096 21 13 04 35.1 248.0 3.4 43.5 40 F 1 7779 19 49 18 J1752+1734 21 13 04 40.8 255.0 3.3 47.9 -18 1 3 7779 19 49 18 19 50 18 =1750+175 21 14 04 40.7 255.2 3.4 47.9 42 F 1 8178 19 50 18 NGC6500 21 14 04 41.7 255.3 3.3 48.2 -8 1 3 8178 19 50 18 19 52 18 --- 21 16 04 41.4 255.7 3.3 48.4 112 F 1 8975 19 52 18 J1751+0939 21 16 04 34.6 248.7 3.4 43.8 -20 1 3 8975 19 52 18 19 53 17 =1749+096 21 17 04 34.4 248.9 3.4 43.9 40 F 1 9374 Schedule for VLBA_HN (Code Hn ) Page 8 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- 19 53 17 J1752+1734 21 17 04 40.1 255.8 3.4 48.1 -17 1 3 9374 19 53 17 19 54 17 =1750+175 21 18 04 40.0 256.0 3.4 48.2 42 F 1 9773 19 54 17 NGC6500 21 18 04 41.0 256.1 3.4 48.5 -8 1 3 9773 19 54 17 19 56 17 --- 21 20 04 40.7 256.5 3.4 48.6 112 F 1 10571 19 56 17 J1751+0939 21 20 04 33.9 249.6 3.5 44.1 -20 1 3 10571 19 56 17 19 57 17 =1749+096 21 21 04 33.7 249.8 3.5 44.2 40 F 1 10970 19 57 17 J1752+1734 21 21 04 39.4 256.6 3.5 48.3 -17 1 3 10970 19 57 17 19 58 17 =1750+175 21 22 04 39.2 256.9 3.5 48.4 42 F 1 11369 19 58 17 NGC6500 21 22 04 40.3 256.9 3.4 48.7 -8 1 3 11369 19 58 17 20 00 16 --- 21 24 04 40.0 257.3 3.5 48.8 112 F 1 12167 20 00 16 J1751+0939 21 24 04 33.2 250.4 3.5 44.4 -20 1 3 12167 20 00 16 20 01 16 =1749+096 21 25 04 33.0 250.6 3.6 44.5 40 F 1 12566 20 01 16 J1752+1734 21 25 04 38.7 257.5 3.5 48.6 -17 1 3 12566 20 01 16 20 02 16 =1750+175 21 26 04 38.5 257.7 3.6 48.6 42 F 1 12964 20 02 16 NGC6500 21 26 04 39.6 257.8 3.5 48.9 -8 1 3 12964 20 02 16 20 04 16 --- 21 28 04 39.2 258.2 3.5 49.0 112 F 1 13762 20 04 16 J1751+0939 21 28 04 32.5 251.2 3.6 44.7 -19 1 3 13762 20 04 16 20 05 15 =1749+096 21 29 04 32.3 251.5 3.6 44.8 40 F 1 14161 20 05 15 J1752+1734 21 29 04 38.0 258.3 3.6 48.8 -17 1 3 14161 20 05 15 20 06 15 =1750+175 21 30 04 37.8 258.5 3.6 48.8 43 F 1 14560 20 06 15 J1759+2343 21 30 04 42.8 263.5 3.5 52.6 -16 1 3 14560 20 06 15 20 07 15 =1756+237 21 31 04 42.7 263.7 3.5 52.6 44 F 1 14959 20 07 15 J1745+1814 21 31 04 36.8 260.6 3.7 49.5 -18 1 3 14959 20 07 15 20 08 15 =1743+182 21 32 04 36.7 260.8 3.8 49.6 42 F 1 15358 20 08 15 J1745+1720 21 32 04 36.0 260.0 3.8 49.1 -7 1 3 15358 20 08 15 20 09 15 =1743+173 21 33 04 35.8 260.2 3.8 49.1 53 F 1 15757 20 09 15 J1728+1215 21 33 04 29.3 259.1 4.1 47.4 -19 1 3 15757 20 09 15 20 10 15 =1725+123 21 34 04 29.1 259.3 4.1 47.4 41 F 1 16156 Schedule for VLBA_HN (Code Hn ) Page 9 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- 20 10 15 J1751+0939 21 34 04 31.5 252.5 3.7 45.1 -11 1 3 16156 20 10 15 20 11 14 =1749+096 21 35 04 31.3 252.7 3.7 45.2 49 F 1 16555 20 11 14 J1752+1734 21 35 04 36.9 259.4 3.7 49.0 -17 1 3 16555 20 11 14 20 12 14 =1750+175 21 36 04 36.7 259.6 3.7 49.1 43 F 1 16954 20 12 14 NGC6500 21 36 04 37.8 259.7 3.7 49.4 -8 1 4 16954 20 12 14 20 14 14 --- 21 38 04 37.5 260.1 3.7 49.5 112 R 1 17449 20 14 14 J1751+0939 21 38 04 30.8 253.3 3.8 45.3 -19 1 4 17449 20 14 14 20 15 14 =1749+096 21 39 04 30.6 253.5 3.8 45.4 40 R 1 17050 20 15 14 J1752+1734 21 39 04 36.2 260.2 3.8 49.2 -17 1 4 17050 20 15 14 20 16 14 =1750+175 21 40 04 36.0 260.4 3.8 49.2 43 R 1 16651 20 16 14 NGC6500 21 40 04 37.1 260.5 3.7 49.5 -8 1 4 16651 20 16 14 20 18 13 --- 21 42 04 36.7 260.9 3.8 49.6 112 R 1 15853 20 18 13 J1751+0939 21 42 04 30.1 254.1 3.8 45.6 -19 1 4 15853 20 18 13 20 19 13 =1749+096 21 43 04 29.9 254.3 3.9 45.6 41 R 1 15454 20 19 13 J1752+1734 21 43 04 35.5 261.0 3.8 49.3 -17 1 4 15454 20 19 13 20 20 13 =1750+175 21 44 04 35.3 261.2 3.9 49.4 43 R 1 15055 20 20 13 NGC6500 21 44 04 36.4 261.3 3.8 49.7 -8 1 4 15055 20 20 13 20 22 13 --- 21 46 04 36.0 261.7 3.8 49.7 112 R 1 14257 20 22 13 J1751+0939 21 46 04 29.4 254.9 3.9 45.8 -19 1 4 14257 20 22 13 20 23 12 =1749+096 21 47 04 29.2 255.1 3.9 45.9 41 R 1 13858 20 23 12 J1752+1734 21 47 04 34.7 261.8 3.9 49.5 -17 1 4 13858 20 23 12 20 24 12 =1750+175 21 48 04 34.6 261.9 3.9 49.5 43 R 1 13460 20 24 12 NGC6500 21 48 04 35.6 262.0 3.9 49.8 -8 1 4 13460 20 24 12 20 26 12 --- 21 50 04 35.3 262.4 3.9 49.9 112 R 1 12662 20 26 12 J1751+0939 21 50 04 28.7 255.7 4.0 46.0 -19 1 4 12662 20 26 12 20 27 12 =1749+096 21 51 04 28.5 255.9 4.0 46.1 41 R 1 12263 20 27 12 J1752+1734 21 51 04 34.0 262.5 4.0 49.6 -17 1 4 12263 20 27 12 20 28 12 =1750+175 21 52 04 33.8 262.7 4.0 49.6 43 R 1 11864 Schedule for VLBA_HN (Code Hn ) Page 10 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 24 Dec 2003 Day 358 --- 20 28 12 NGC6500 21 52 04 34.9 262.8 3.9 49.9 -8 1 4 11864 20 28 12 20 30 11 --- 21 54 04 34.6 263.2 4.0 50.0 112 R 1 11066 20 30 11 J1751+0939 21 54 04 27.9 256.4 4.0 46.2 -19 1 4 11066 20 30 11 20 31 11 =1749+096 21 55 04 27.8 256.6 4.1 46.3 41 R 1 10667 20 31 11 J1752+1734 21 55 04 33.3 263.2 4.0 49.7 -17 1 4 10667 20 31 11 20 32 11 =1750+175 21 56 04 33.1 263.4 4.1 49.7 43 R 1 10268 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v6cm-128-4-2-L.set Matches group v6cm_2 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 4100.00 4100.00 4100.00 4100.00 Net SB= U U U U Pol. = LCP LCP LCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = C C C C VLBA FE= 6cm omit 6cm omit VLBA Synth= 15.4 4.1 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 4971.49 4979.49 4987.49 4995.49 BBC fr= 871.49 879.49 887.49 895.49 Bandwd= 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Source Source position (RA/Dec) (B1950) (J2000) (Date) * NGC6500 17 53 48.136637 * 17 55 59.782400 17 56 08.154019 18 20 39.91157 * 18 20 17.66100 18 20 10.15199 From catalog imbedded in main SCHED input file. * J1642+3948 16 41 17.606214 * 16 42 58.809952 16 43 04.787276 1641+399 39 54 10.81489 * 39 48 36.99395 39 48 01.93129 3C345 /home/filehost/cwalker/sched/catalogs/sources.vlba J1642+39 ICRF - Ext.1 Source - 1998 IERS Annual Report * J1728+1215 17 25 47.656534 * 17 28 07.051218 17 28 16.074102 1725+123 12 18 03.42295 * 12 15 39.48600 12 15 22.53997 J1728+12 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1745+1720 17 43 22.235912 * 17 45 35.208179 17 45 43.697869 1743+173 17 21 09.18610 * 17 20 01.42341 17 19 50.26497 J1745+17 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J1745+1814 17 43 44.129548 * 17 45 55.927483 17 46 04.321983 1743+182 18 15 56.63458 * 18 14 50.42224 18 14 39.35387 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1751+0939 17 49 10.387930 * 17 51 32.818573 17 51 42.052490 1749+096 09 39 42.82596 * 09 39 00.72851 09 38 51.87520 J1751+09 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J1752+1734 17 50 33.364393 * 17 52 46.002907 17 52 54.457997 1750+175 17 34 56.75234 * 17 34 20.35028 17 34 11.71458 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1759+2343 17 56 55.937407 * 17 59 00.358091 17 59 08.133465 1756+237 23 43 55.77912 * 23 43 46.95379 23 43 40.43806 J1759+23 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 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) NGC6500 41.9 J1642+3948 66.5 J1728+1215 37.2 J1745+1720 41.2 J1745+1814 42.1 J1751+0939 33.4 J1752+1734 41.2 J1759+2343 47.2 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