COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs Exp. Code: bn021ag 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 28 Apr 2004 Day 119 --- 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 09 45 39 J1751+0939 19 24 32 51.0 218.1 1.5 27.3 0 1 1 0 09 45 39 09 47 39 =1749+096 19 26 32 50.8 218.8 1.6 27.8 120 F 1 798 09 47 39 J1752+1734 19 26 32 57.8 225.3 1.6 33.1 -20 1 1 798 09 47 39 09 48 39 =1750+175 19 27 32 57.7 225.6 1.6 33.3 40 F 1 1197 09 48 39 NGC6500 19 27 32 58.7 225.2 1.5 33.2 -8 1 1 1197 09 48 39 09 50 38 --- 19 29 32 58.5 226.0 1.6 33.7 112 F 1 1995 09 50 38 J1751+0939 19 29 32 50.5 219.9 1.6 28.4 -22 1 1 1995 09 50 38 09 51 38 =1749+096 19 30 32 50.3 220.2 1.6 28.6 38 F 1 2393 09 51 38 J1752+1734 19 30 32 57.3 226.7 1.6 34.0 -20 1 1 2393 09 51 38 09 52 38 =1750+175 19 31 32 57.1 227.1 1.6 34.2 40 F 1 2792 09 52 38 NGC6500 19 31 32 58.2 226.7 1.6 34.2 -8 1 1 2792 09 52 38 09 54 38 --- 19 33 32 57.9 227.5 1.6 34.6 112 F 1 3590 09 54 38 J1751+0939 19 33 32 50.0 221.2 1.7 29.3 -22 1 1 3590 09 54 38 09 55 38 =1749+096 19 34 32 49.9 221.5 1.7 29.5 38 F 1 3989 09 55 38 J1752+1734 19 34 32 56.7 228.2 1.7 34.9 -20 1 1 3989 09 55 38 09 56 37 =1750+175 19 35 32 56.6 228.5 1.7 35.1 40 F 1 4388 09 56 37 NGC6500 19 35 32 57.7 228.2 1.7 35.1 -8 1 1 4388 09 56 37 09 58 37 --- 19 37 32 57.4 228.9 1.7 35.5 112 F 1 5186 09 58 37 J1751+0939 19 37 32 49.5 222.5 1.8 30.1 -22 1 1 5186 09 58 37 09 59 37 =1749+096 19 38 32 49.4 222.9 1.8 30.3 38 F 1 5585 09 59 37 J1752+1734 19 38 32 56.2 229.6 1.8 35.8 -20 1 1 5585 09 59 37 10 00 37 =1750+175 19 39 32 56.0 229.9 1.8 36.0 40 F 1 5984 10 00 37 NGC6500 19 39 32 57.1 229.6 1.7 36.0 -8 1 1 5984 10 00 37 10 02 36 --- 19 41 32 56.8 230.3 1.8 36.4 112 F 1 6781 10 02 36 J1751+0939 19 41 32 49.0 223.8 1.8 31.0 -22 1 1 6781 10 02 36 10 03 36 =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 28 Apr 2004 Day 119 --- 10 03 36 J1752+1734 19 42 32 55.6 231.0 1.8 36.6 -20 1 1 7180 10 03 36 10 04 36 =1750+175 19 43 32 55.5 231.3 1.8 36.8 40 F 1 7579 10 04 36 NGC6500 19 43 32 56.6 231.0 1.8 36.8 -8 1 1 7579 10 04 36 10 06 36 --- 19 45 32 56.3 231.7 1.8 37.3 112 F 1 8377 10 06 36 J1751+0939 19 45 32 48.5 225.1 1.9 31.7 -22 1 1 8377 10 06 36 10 07 36 =1749+096 19 46 32 48.4 225.4 1.9 31.9 38 F 1 8776 10 07 36 J1752+1734 19 46 32 55.0 232.3 1.9 37.4 -19 1 1 8776 10 07 36 10 08 35 =1750+175 19 47 32 54.9 232.6 1.9 37.6 40 F 1 9175 10 08 35 NGC6500 19 47 32 56.0 232.4 1.9 37.7 -8 1 1 9175 10 08 35 10 10 35 --- 19 49 32 55.7 233.1 1.9 38.1 112 F 1 9973 10 10 35 J1751+0939 19 49 32 48.0 226.4 2.0 32.5 -21 1 1 9973 10 10 35 10 11 35 =1749+096 19 50 32 47.8 226.7 2.0 32.7 38 F 1 10372 10 11 35 J1752+1734 19 50 32 54.5 233.6 2.0 38.2 -19 1 1 10372 10 11 35 10 12 35 =1750+175 19 51 32 54.3 233.9 2.0 38.4 41 F 1 10771 10 12 35 NGC6500 19 51 32 55.4 233.7 1.9 38.4 -8 1 1 10771 10 12 35 10 14 34 --- 19 53 32 55.1 234.4 2.0 38.8 112 F 1 11568 10 14 34 J1751+0939 19 53 32 47.4 227.6 2.0 33.3 -21 1 1 11568 10 14 34 10 15 34 =1749+096 19 54 32 47.3 227.9 2.0 33.4 38 F 1 11967 10 15 34 J1752+1734 19 54 32 53.9 234.9 2.0 38.9 -19 1 1 11967 10 15 34 10 16 34 =1750+175 19 55 32 53.7 235.2 2.0 39.1 41 F 1 12366 10 16 34 J1759+2343 19 55 32 59.3 240.6 1.9 44.2 -17 1 1 12366 10 16 34 10 17 34 =1756+237 19 56 32 59.1 241.0 2.0 44.4 43 F 1 12765 10 17 34 J1745+1814 19 56 32 53.0 238.3 2.2 41.0 -18 1 1 12765 10 17 34 10 18 34 =1743+182 19 57 32 52.9 238.6 2.2 41.2 42 F 1 13164 10 18 34 J1745+1720 19 57 32 52.1 237.7 2.2 40.4 -7 1 1 13164 10 18 34 10 19 34 =1743+173 19 58 32 52.0 238.0 2.2 40.6 52 F 1 13563 10 19 34 J1728+1215 19 58 32 45.4 238.0 2.5 39.4 -19 1 1 13563 10 19 34 10 20 33 =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 28 Apr 2004 Day 119 --- 10 22 34 J1751+0939 20 01 33 46.3 230.0 2.2 34.7 109 1 1 13962 10 22 34 10 23 34 =1749+096 20 02 33 46.2 230.3 2.2 34.8 60 F 1 14361 10 23 34 J1752+1734 20 02 33 52.7 237.3 2.2 40.3 -19 1 1 14361 10 23 34 10 24 34 =1750+175 20 03 33 52.5 237.6 2.2 40.4 41 F 1 14760 10 24 34 NGC6500 20 03 33 53.6 237.5 2.1 40.6 -8 1 1 14760 10 24 34 10 26 33 --- 20 05 33 53.3 238.1 2.2 40.9 112 F 1 15557 10 26 33 J1751+0939 20 05 33 45.8 231.2 2.2 35.3 -21 1 1 15557 10 26 33 10 27 33 =1749+096 20 06 33 45.6 231.4 2.2 35.5 39 F 1 15956 10 27 33 J1752+1734 20 06 33 52.0 238.5 2.2 40.9 -19 1 1 15956 10 27 33 10 28 33 =1750+175 20 07 33 51.9 238.8 2.2 41.1 41 F 1 16355 10 28 33 NGC6500 20 07 33 53.0 238.7 2.2 41.2 -8 1 1 16355 10 28 33 10 30 33 --- 20 09 33 52.6 239.3 2.2 41.5 112 F 1 17153 10 30 33 J1751+0939 20 09 33 45.2 232.3 2.3 36.0 -21 1 2 17153 10 30 33 10 31 33 =1749+096 20 10 33 45.0 232.6 2.3 36.1 39 R 1 16754 10 31 33 J1752+1734 20 10 33 51.4 239.7 2.3 41.5 -19 1 2 16754 10 31 33 10 32 32 =1750+175 20 11 33 51.2 240.0 2.3 41.7 41 R 1 16355 10 32 32 NGC6500 20 11 33 52.3 239.9 2.3 41.8 -8 1 2 16355 10 32 32 10 34 32 --- 20 13 33 52.0 240.4 2.3 42.1 112 R 1 15557 10 34 32 J1751+0939 20 13 33 44.6 233.4 2.4 36.6 -21 1 2 15557 10 34 32 10 35 32 =1749+096 20 14 33 44.5 233.7 2.4 36.8 39 R 1 15159 10 35 32 J1752+1734 20 14 33 50.8 240.8 2.4 42.1 -19 1 2 15159 10 35 32 10 36 32 =1750+175 20 15 33 50.6 241.1 2.4 42.2 41 R 1 14760 10 36 32 NGC6500 20 15 33 51.7 241.0 2.3 42.4 -8 1 2 14760 10 36 32 10 38 32 --- 20 17 33 51.4 241.6 2.4 42.7 112 R 1 13962 10 38 32 J1751+0939 20 17 33 44.0 234.5 2.4 37.2 -21 1 2 13962 10 38 32 10 39 31 =1749+096 20 18 33 43.9 234.8 2.4 37.4 39 R 1 13563 10 39 31 J1752+1734 20 18 33 50.1 241.9 2.4 42.7 -19 1 2 13563 10 39 31 10 40 31 =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 28 Apr 2004 Day 119 --- 10 40 31 NGC6500 20 19 33 51.0 242.1 2.4 43.0 -8 1 2 13164 10 40 31 10 42 31 --- 20 21 33 50.7 242.7 2.4 43.3 112 R 1 12366 10 42 31 J1751+0939 20 21 33 43.4 235.6 2.5 37.8 -21 1 2 12366 10 42 31 10 43 31 =1749+096 20 22 33 43.3 235.9 2.5 37.9 39 R 1 11967 10 43 31 J1752+1734 20 22 33 49.5 243.0 2.5 43.2 -18 1 2 11967 10 43 31 10 44 31 =1750+175 20 23 33 49.3 243.3 2.5 43.3 41 R 1 11568 10 44 31 J1759+2343 20 23 33 54.7 248.8 2.4 48.2 -17 1 2 11568 10 44 31 10 45 30 =1756+237 20 24 33 54.5 249.0 2.4 48.3 43 R 1 11169 10 45 30 J1745+1814 20 24 33 48.5 246.0 2.6 44.8 -18 1 2 11169 10 45 30 10 46 30 =1743+182 20 25 33 48.3 246.3 2.7 44.9 42 R 1 10771 10 46 30 J1745+1720 20 25 33 47.6 245.4 2.7 44.2 -7 1 2 10771 10 46 30 10 47 30 =1743+173 20 26 33 47.5 245.7 2.7 44.3 52 R 1 10372 10 47 30 J1728+1215 20 26 33 40.9 245.1 3.0 42.8 -19 1 2 10372 10 47 30 10 48 30 =1725+123 20 27 33 40.7 245.3 3.0 42.9 41 R 1 9973 10 50 31 J1642+3948 20 29 34 48.2 285.7 3.8 66.5 88 1 2 9973 10 50 31 10 53 30 =1641+399 20 32 34 47.7 286.1 3.8 66.3 180 R 1 8776 10 53 30 J1751+0939 20 32 34 41.7 238.5 2.7 39.3 -38 1 2 8776 10 53 30 10 56 00 =1749+096 20 35 04 41.3 239.1 2.7 39.6 112 R 1 7779 10 56 00 J1752+1734 20 35 04 47.4 246.2 2.7 44.7 -18 1 2 7779 10 56 00 10 56 59 =1750+175 20 36 04 47.2 246.5 2.7 44.8 42 R 1 7380 10 56 59 NGC6500 20 36 04 48.3 246.5 2.7 45.0 -8 1 2 7380 10 56 59 10 58 59 --- 20 38 04 48.0 247.0 2.7 45.2 112 R 1 6582 10 58 59 J1751+0939 20 38 04 40.8 239.9 2.8 40.0 -20 1 2 6582 10 58 59 10 59 59 =1749+096 20 39 04 40.7 240.1 2.8 40.1 40 R 1 6183 10 59 59 J1752+1734 20 39 04 46.7 247.2 2.8 45.1 -18 1 2 6183 10 59 59 11 00 59 =1750+175 20 40 04 46.6 247.5 2.8 45.2 42 R 1 5784 11 00 59 NGC6500 20 40 04 47.6 247.5 2.7 45.4 -8 1 2 5784 11 00 59 11 02 58 --- 20 42 04 47.3 248.0 2.8 45.6 112 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 28 Apr 2004 Day 119 --- 11 02 58 J1751+0939 20 42 04 40.2 240.9 2.8 40.4 -20 1 2 4986 11 02 58 11 03 58 =1749+096 20 43 04 40.1 241.1 2.9 40.6 40 R 1 4587 11 03 58 J1752+1734 20 43 04 46.1 248.2 2.8 45.5 -18 1 2 4587 11 03 58 11 04 58 =1750+175 20 44 04 45.9 248.5 2.9 45.6 42 R 1 4189 11 04 58 NGC6500 20 44 04 47.0 248.5 2.8 45.8 -8 1 2 4189 11 04 58 11 06 58 --- 20 46 04 46.6 249.0 2.8 46.0 112 R 1 3391 11 06 58 J1751+0939 20 46 04 39.6 241.8 2.9 40.9 -20 1 2 3391 11 06 58 11 07 58 =1749+096 20 47 04 39.4 242.1 2.9 41.0 40 R 1 2992 11 07 58 J1752+1734 20 47 04 45.4 249.2 2.9 45.9 -18 1 2 2992 11 07 58 11 08 58 =1750+175 20 48 04 45.2 249.4 2.9 46.0 42 R 1 2593 11 08 58 NGC6500 20 48 04 46.3 249.4 2.9 46.2 -8 1 2 2593 11 08 58 11 10 57 --- 20 50 04 45.9 249.9 2.9 46.4 112 R 1 1795 11 10 57 J1751+0939 20 50 04 38.9 242.8 3.0 41.3 -20 1 2 1795 11 10 57 11 11 57 =1749+096 20 51 04 38.8 243.0 3.0 41.4 40 R 1 1396 11 11 57 J1752+1734 20 51 04 44.7 250.1 3.0 46.2 -18 1 2 1396 11 11 57 11 12 57 =1750+175 20 52 04 44.5 250.3 3.0 46.3 42 R 1 997 11 12 57 NGC6500 20 52 04 45.6 250.4 2.9 46.6 -8 1 2 997 11 12 57 11 14 57 --- 20 54 04 45.3 250.8 3.0 46.8 112 R 1 199 11 14 57 J1751+0939 20 54 04 38.3 243.7 3.0 41.8 -20 1 3 199 11 14 57 11 15 56 =1749+096 20 55 04 38.1 244.0 3.1 41.9 40 F 1 598 11 15 56 J1752+1734 20 55 04 44.0 251.0 3.0 46.6 -18 1 3 598 11 15 56 11 16 56 =1750+175 20 56 04 43.8 251.2 3.1 46.7 42 F 1 997 11 16 56 NGC6500 20 56 04 44.9 251.3 3.0 46.9 -8 1 3 997 11 16 56 11 18 56 --- 20 58 04 44.6 251.7 3.0 47.1 112 F 1 1795 11 18 56 J1751+0939 20 58 04 37.6 244.7 3.1 42.2 -20 1 3 1795 11 18 56 11 19 56 =1749+096 20 59 04 37.4 244.9 3.1 42.3 40 F 1 2194 11 19 56 J1752+1734 20 59 04 43.3 251.9 3.1 46.9 -18 1 3 2194 11 19 56 11 20 56 =1750+175 21 00 04 43.1 252.1 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 28 Apr 2004 Day 119 --- 11 20 56 NGC6500 21 00 04 44.2 252.2 3.1 47.3 -8 1 3 2593 11 20 56 11 22 55 --- 21 02 04 43.9 252.6 3.1 47.4 112 F 1 3391 11 22 55 J1751+0939 21 02 04 36.9 245.6 3.2 42.6 -20 1 3 3391 11 22 55 11 23 55 =1749+096 21 03 04 36.8 245.8 3.2 42.6 40 F 1 3790 11 23 55 J1752+1734 21 03 04 42.6 252.8 3.2 47.2 -18 1 3 3790 11 23 55 11 24 55 =1750+175 21 04 04 42.4 253.0 3.2 47.3 42 F 1 4189 11 24 55 J1759+2343 21 04 04 47.5 258.3 3.1 51.5 -16 1 3 4189 11 24 55 11 25 55 =1756+237 21 05 04 47.4 258.5 3.1 51.6 44 F 1 4587 11 25 55 J1745+1814 21 05 04 41.5 255.4 3.3 48.2 -18 1 3 4587 11 25 55 11 26 55 =1743+182 21 06 04 41.3 255.6 3.3 48.3 42 F 1 4986 11 26 55 J1745+1720 21 06 04 40.7 254.8 3.3 47.7 -7 1 3 4986 11 26 55 11 27 54 =1743+173 21 07 04 40.5 255.0 3.4 47.8 53 F 1 5385 11 27 54 J1728+1215 21 07 04 33.9 254.0 3.6 46.1 -19 1 3 5385 11 27 54 11 28 54 =1725+123 21 08 04 33.8 254.2 3.7 46.1 41 F 1 5784 11 28 54 J1751+0939 21 08 04 35.9 246.9 3.3 43.1 -11 1 3 5784 11 28 54 11 29 54 =1749+096 21 09 04 35.8 247.2 3.3 43.2 49 F 1 6183 11 29 54 J1752+1734 21 09 04 41.6 254.1 3.3 47.6 -18 1 3 6183 11 29 54 11 30 54 =1750+175 21 10 04 41.4 254.3 3.3 47.7 42 F 1 6582 11 30 54 NGC6500 21 10 04 42.5 254.4 3.2 48.0 -8 1 3 6582 11 30 54 11 32 54 --- 21 12 04 42.1 254.8 3.3 48.1 112 F 1 7380 11 32 54 J1751+0939 21 12 04 35.3 247.8 3.3 43.4 -20 1 3 7380 11 32 54 11 33 53 =1749+096 21 13 04 35.1 248.0 3.4 43.5 40 F 1 7779 11 33 53 J1752+1734 21 13 04 40.8 255.0 3.3 47.9 -18 1 3 7779 11 33 53 11 34 53 =1750+175 21 14 04 40.7 255.2 3.4 47.9 42 F 1 8178 11 34 53 NGC6500 21 14 04 41.8 255.3 3.3 48.2 -8 1 3 8178 11 34 53 11 36 53 --- 21 16 04 41.4 255.7 3.3 48.4 112 F 1 8975 11 36 53 J1751+0939 21 16 04 34.6 248.7 3.4 43.8 -20 1 3 8975 11 36 53 11 37 53 =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 28 Apr 2004 Day 119 --- 11 37 53 J1752+1734 21 17 04 40.1 255.8 3.4 48.1 -17 1 3 9374 11 37 53 11 38 53 =1750+175 21 18 04 40.0 256.0 3.4 48.2 42 F 1 9773 11 38 53 NGC6500 21 18 04 41.0 256.1 3.4 48.5 -8 1 3 9773 11 38 53 11 40 52 --- 21 20 04 40.7 256.5 3.4 48.6 112 F 1 10571 11 40 52 J1751+0939 21 20 04 33.9 249.5 3.5 44.1 -20 1 3 10571 11 40 52 11 41 52 =1749+096 21 21 04 33.7 249.8 3.5 44.2 40 F 1 10970 11 41 52 J1752+1734 21 21 04 39.4 256.6 3.5 48.3 -17 1 3 10970 11 41 52 11 42 52 =1750+175 21 22 04 39.2 256.8 3.5 48.4 42 F 1 11369 11 42 52 NGC6500 21 22 04 40.3 256.9 3.4 48.7 -8 1 3 11369 11 42 52 11 44 52 --- 21 24 04 40.0 257.3 3.5 48.8 112 F 1 12167 11 44 52 J1751+0939 21 24 04 33.2 250.4 3.5 44.4 -20 1 3 12167 11 44 52 11 45 51 =1749+096 21 25 04 33.0 250.6 3.6 44.5 40 F 1 12566 11 45 51 J1752+1734 21 25 04 38.7 257.4 3.5 48.6 -17 1 3 12566 11 45 51 11 46 51 =1750+175 21 26 04 38.5 257.6 3.6 48.6 42 F 1 12964 11 46 51 NGC6500 21 26 04 39.6 257.7 3.5 48.9 -8 1 3 12964 11 46 51 11 48 51 --- 21 28 04 39.3 258.1 3.5 49.0 112 F 1 13762 11 48 51 J1751+0939 21 28 04 32.5 251.2 3.6 44.7 -19 1 3 13762 11 48 51 11 49 51 =1749+096 21 29 04 32.3 251.4 3.6 44.7 40 F 1 14161 11 49 51 J1752+1734 21 29 04 38.0 258.2 3.6 48.8 -17 1 3 14161 11 49 51 11 50 51 =1750+175 21 30 04 37.8 258.4 3.6 48.8 43 F 1 14560 11 50 51 J1759+2343 21 30 04 42.8 263.5 3.5 52.6 -16 1 3 14560 11 50 51 11 51 50 =1756+237 21 31 04 42.7 263.7 3.5 52.6 44 F 1 14959 11 51 50 J1745+1814 21 31 04 36.8 260.6 3.7 49.5 -18 1 3 14959 11 51 50 11 52 50 =1743+182 21 32 04 36.7 260.8 3.8 49.6 42 F 1 15358 11 52 50 J1745+1720 21 32 04 36.0 260.0 3.8 49.1 -7 1 3 15358 11 52 50 11 53 50 =1743+173 21 33 04 35.8 260.2 3.8 49.1 53 F 1 15757 11 53 50 J1728+1215 21 33 04 29.3 259.1 4.1 47.4 -19 1 3 15757 11 53 50 11 54 50 =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 28 Apr 2004 Day 119 --- 11 54 50 J1751+0939 21 34 04 31.5 252.5 3.7 45.1 -11 1 3 16156 11 54 50 11 55 50 =1749+096 21 35 04 31.3 252.7 3.7 45.1 49 F 1 16555 11 55 50 J1752+1734 21 35 04 36.9 259.4 3.7 49.0 -17 1 3 16555 11 55 50 11 56 50 =1750+175 21 36 04 36.7 259.6 3.7 49.1 43 F 1 16954 11 56 50 NGC6500 21 36 04 37.8 259.7 3.7 49.4 -8 1 4 16954 11 56 50 11 58 49 --- 21 38 04 37.5 260.1 3.7 49.5 112 R 1 17449 11 58 49 J1751+0939 21 38 04 30.8 253.3 3.8 45.3 -19 1 4 17449 11 58 49 11 59 49 =1749+096 21 39 04 30.6 253.5 3.8 45.4 40 R 1 17050 11 59 49 J1752+1734 21 39 04 36.2 260.2 3.8 49.2 -17 1 4 17050 11 59 49 12 00 49 =1750+175 21 40 04 36.0 260.4 3.8 49.2 43 R 1 16651 12 00 49 NGC6500 21 40 04 37.1 260.5 3.7 49.5 -8 1 4 16651 12 00 49 12 02 49 --- 21 42 04 36.7 260.9 3.8 49.6 112 R 1 15853 12 02 49 J1751+0939 21 42 04 30.1 254.1 3.8 45.6 -19 1 4 15853 12 02 49 12 03 49 =1749+096 21 43 04 29.9 254.3 3.9 45.6 41 R 1 15454 12 03 49 J1752+1734 21 43 04 35.5 261.0 3.8 49.3 -17 1 4 15454 12 03 49 12 04 48 =1750+175 21 44 04 35.3 261.2 3.9 49.4 43 R 1 15055 12 04 48 NGC6500 21 44 04 36.4 261.3 3.8 49.7 -8 1 4 15055 12 04 48 12 06 48 --- 21 46 04 36.0 261.7 3.8 49.7 112 R 1 14257 12 06 48 J1751+0939 21 46 04 29.4 254.9 3.9 45.8 -19 1 4 14257 12 06 48 12 07 48 =1749+096 21 47 04 29.2 255.1 3.9 45.9 41 R 1 13858 12 07 48 J1752+1734 21 47 04 34.8 261.7 3.9 49.5 -17 1 4 13858 12 07 48 12 08 48 =1750+175 21 48 04 34.6 261.9 3.9 49.5 43 R 1 13460 12 08 48 NGC6500 21 48 04 35.7 262.0 3.9 49.8 -8 1 4 13460 12 08 48 12 10 47 --- 21 50 04 35.3 262.4 3.9 49.9 112 R 1 12662 12 10 47 J1751+0939 21 50 04 28.7 255.7 4.0 46.0 -19 1 4 12662 12 10 47 12 11 47 =1749+096 21 51 04 28.5 255.9 4.0 46.1 41 R 1 12263 12 11 47 J1752+1734 21 51 04 34.0 262.5 4.0 49.6 -17 1 4 12263 12 11 47 12 12 47 =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 28 Apr 2004 Day 119 --- 12 12 47 NGC6500 21 52 04 34.9 262.8 3.9 49.9 -8 1 4 11864 12 12 47 12 14 47 --- 21 54 04 34.6 263.2 4.0 50.0 112 R 1 11066 12 14 47 J1751+0939 21 54 04 28.0 256.4 4.0 46.2 -19 1 4 11066 12 14 47 12 15 47 =1749+096 21 55 04 27.8 256.6 4.1 46.3 41 R 1 10667 12 15 47 J1752+1734 21 55 04 33.3 263.2 4.0 49.7 -17 1 4 10667 12 15 47 12 16 46 =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 11.416420 18 20 39.91157 * 18 20 17.66100 18 19 58.58763 From catalog imbedded in main SCHED input file. * J1642+3948 16 41 17.606214 * 16 42 58.809952 16 43 08.636100 1641+399 39 54 10.81489 * 39 48 36.99395 39 47 52.17574 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 19.419207 1725+123 12 18 03.42295 * 12 15 39.48600 12 15 12.22576 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 46.997598 1743+173 17 21 09.18610 * 17 20 01.42341 17 19 39.03505 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 07.624568 1743+182 18 15 56.63458 * 18 14 50.42224 18 14 27.96859 /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 45.319524 1749+096 09 39 42.82596 * 09 39 00.72851 09 38 42.02324 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 57.730480 1750+175 17 34 56.75234 * 17 34 20.35028 17 34 00.34026 /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 11.419074 1756+237 23 43 55.77912 * 23 43 46.95379 23 43 27.82228 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 118.5 J1642+3948 117.0 J1728+1215 127.3 J1745+1720 121.1 J1745+1814 120.6 J1751+0939 123.3 J1752+1734 119.5 J1759+2343 115.2 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