COVER INFORMATION Station: VLBA_LA (Code La ) 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_LA (Code La ) 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 17 07 30 62.0 156.3 -0.7 -19.3 0 1 1 0 18 01 04 18 03 03 =1749+096 17 09 30 62.2 157.3 -0.7 -18.6 120 F 1 798 18 03 03 J1752+1734 17 09 30 69.4 149.3 -0.7 -25.7 -20 1 1 798 18 03 03 18 04 03 =1750+175 17 10 30 69.5 149.9 -0.7 -25.2 39 F 1 1197 18 04 03 NGC6500 17 10 30 69.9 147.0 -0.8 -27.8 -8 1 1 1197 18 04 03 18 06 03 --- 17 12 30 70.1 148.2 -0.7 -26.8 112 F 1 1995 18 06 03 J1751+0939 17 12 30 62.4 158.8 -0.7 -17.3 -21 1 1 1995 18 06 03 18 07 03 =1749+096 17 13 30 62.5 159.3 -0.6 -16.9 38 F 1 2393 18 07 03 J1752+1734 17 13 30 69.8 151.8 -0.7 -23.7 -21 1 1 2393 18 07 03 18 08 03 =1750+175 17 14 30 69.9 152.4 -0.6 -23.2 39 F 1 2792 18 08 03 NGC6500 17 14 30 70.3 149.4 -0.7 -25.8 -8 1 1 2792 18 08 03 18 10 02 --- 17 16 30 70.5 150.7 -0.7 -24.7 112 F 1 3590 18 10 02 J1751+0939 17 16 30 62.7 160.8 -0.6 -15.7 -22 1 1 3590 18 10 02 18 11 02 =1749+096 17 17 30 62.7 161.3 -0.6 -15.3 38 F 1 3989 18 11 02 J1752+1734 17 17 30 70.2 154.4 -0.6 -21.6 -21 1 1 3989 18 11 02 18 12 02 =1750+175 17 18 30 70.3 155.0 -0.6 -21.1 39 F 1 4388 18 12 02 NGC6500 17 18 30 70.7 152.0 -0.6 -23.6 -8 1 1 4388 18 12 02 18 14 02 --- 17 20 30 70.9 153.4 -0.6 -22.5 112 F 1 5186 18 14 02 J1751+0939 17 20 30 62.9 162.9 -0.5 -14.0 -22 1 1 5186 18 14 02 18 15 02 =1749+096 17 21 30 63.0 163.4 -0.5 -13.6 38 F 1 5585 18 15 02 J1752+1734 17 21 30 70.5 157.0 -0.5 -19.4 -21 1 1 5585 18 15 02 18 16 01 =1750+175 17 22 30 70.6 157.7 -0.5 -18.8 39 F 1 5984 18 16 01 NGC6500 17 22 30 71.0 154.7 -0.6 -21.4 -8 1 1 5984 18 16 01 18 18 01 --- 17 24 30 71.2 156.1 -0.5 -20.3 112 F 1 6781 18 18 01 J1751+0939 17 24 30 63.1 165.0 -0.5 -12.3 -22 1 1 6781 18 18 01 18 19 01 =1749+096 17 25 30 63.2 165.6 -0.4 -11.8 38 F 1 7180 Schedule for VLBA_LA (Code La ) 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 17 25 30 70.8 159.8 -0.5 -17.1 -21 1 1 7180 18 19 01 18 20 01 =1750+175 17 26 30 70.9 160.4 -0.4 -16.5 39 F 1 7579 18 20 01 NGC6500 17 26 30 71.4 157.5 -0.5 -19.1 -8 1 1 7579 18 20 01 18 22 00 --- 17 28 30 71.5 158.9 -0.5 -17.9 112 F 1 8377 18 22 00 J1751+0939 17 28 30 63.3 167.2 -0.4 -10.5 -22 1 1 8377 18 22 00 18 23 00 =1749+096 17 29 30 63.4 167.7 -0.4 -10.1 37 F 1 8776 18 23 00 J1752+1734 17 29 30 71.1 162.6 -0.4 -14.8 -21 1 1 8776 18 23 00 18 24 00 =1750+175 17 30 30 71.1 163.3 -0.4 -14.2 38 F 1 9175 18 24 00 NGC6500 17 30 30 71.7 160.3 -0.4 -16.7 -8 1 1 9175 18 24 00 18 26 00 --- 17 32 30 71.8 161.8 -0.4 -15.5 112 F 1 9973 18 26 00 J1751+0939 17 32 30 63.5 169.3 -0.3 -8.8 -23 1 1 9973 18 26 00 18 27 00 =1749+096 17 33 30 63.5 169.9 -0.3 -8.3 37 F 1 10372 18 27 00 J1752+1734 17 33 30 71.3 165.4 -0.3 -12.4 -21 1 1 10372 18 27 00 18 27 59 =1750+175 17 34 30 71.3 166.2 -0.3 -11.7 38 F 1 10771 18 27 59 NGC6500 17 34 30 71.9 163.2 -0.4 -14.3 -8 1 1 10771 18 27 59 18 29 59 --- 17 36 30 72.0 164.7 -0.3 -13.0 112 F 1 11568 18 29 59 J1751+0939 17 36 30 63.6 171.5 -0.3 -7.0 -23 1 1 11568 18 29 59 18 30 59 =1749+096 17 37 30 63.7 172.1 -0.2 -6.5 37 F 1 11967 18 30 59 J1752+1734 17 37 30 71.5 168.4 -0.3 -9.9 -22 1 1 11967 18 30 59 18 31 59 =1750+175 17 38 30 71.5 169.1 -0.2 -9.3 38 F 1 12366 18 31 59 J1759+2343 17 38 30 77.2 158.3 -0.3 -19.2 -17 1 1 12366 18 31 59 18 32 59 =1756+237 17 39 30 77.2 159.2 -0.3 -18.3 43 F 1 12765 18 32 59 J1745+1814 17 39 30 72.4 174.8 -0.1 -4.4 -16 1 1 12765 18 32 59 18 33 58 =1743+182 17 40 30 72.4 175.6 -0.1 -3.7 43 F 1 13164 18 33 58 J1745+1720 17 40 30 71.5 176.1 -0.1 -3.4 -8 1 1 13164 18 33 58 18 34 58 =1743+173 17 41 30 71.5 176.8 -0.1 -2.7 52 F 1 13563 18 34 58 J1728+1215 17 41 30 66.3 188.1 0.2 6.7 -16 1 1 13563 18 34 58 18 35 58 =1725+123 17 42 30 66.3 188.7 0.2 7.2 43 F 1 13962 Schedule for VLBA_LA (Code La ) 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 17 44 31 63.8 176.0 -0.1 -3.3 106 1 1 13962 18 37 59 18 38 59 =1749+096 17 45 31 63.8 176.5 -0.1 -2.8 60 F 1 14361 18 38 59 J1752+1734 17 45 31 71.7 174.4 -0.1 -4.8 -22 1 1 14361 18 38 59 18 39 58 =1750+175 17 46 31 71.7 175.1 -0.1 -4.1 38 F 1 14760 18 39 58 NGC6500 17 46 31 72.4 172.4 -0.2 -6.5 -8 1 1 14760 18 39 58 18 41 58 --- 17 48 31 72.5 174.0 -0.1 -5.1 112 F 1 15557 18 41 58 J1751+0939 17 48 31 63.9 178.2 -0.1 -1.5 -23 1 1 15557 18 41 58 18 42 58 =1749+096 17 49 31 63.9 178.8 0.0 -1.0 37 F 1 15956 18 42 58 J1752+1734 17 49 31 71.8 177.4 -0.1 -2.2 -22 1 1 15956 18 42 58 18 43 58 =1750+175 17 50 31 71.8 178.2 0.0 -1.6 38 F 1 16355 18 43 58 NGC6500 17 50 31 72.5 175.6 -0.1 -3.8 -8 1 1 16355 18 43 58 18 45 57 --- 17 52 31 72.5 177.1 -0.1 -2.5 112 F 1 17153 18 45 57 J1751+0939 17 52 31 63.9 180.5 0.0 0.4 -23 1 2 17153 18 45 57 18 46 57 =1749+096 17 53 31 63.9 181.0 0.0 0.8 36 R 1 16754 18 46 57 J1752+1734 17 53 31 71.8 180.5 0.0 0.4 -22 1 2 16754 18 46 57 18 47 57 =1750+175 17 54 31 71.8 181.2 0.0 1.0 38 R 1 16355 18 47 57 NGC6500 17 54 31 72.6 178.7 0.0 -1.1 -8 1 2 16355 18 47 57 18 49 57 --- 17 56 31 72.6 180.3 0.0 0.3 112 R 1 15557 18 49 57 J1751+0939 17 56 31 63.8 182.7 0.1 2.2 -23 1 2 15557 18 49 57 18 50 57 =1749+096 17 57 31 63.8 183.2 0.1 2.7 36 R 1 15159 18 50 57 J1752+1734 17 57 31 71.8 183.5 0.1 3.0 -22 1 2 15159 18 50 57 18 51 56 =1750+175 17 58 31 71.8 184.3 0.1 3.6 38 R 1 14760 18 51 56 NGC6500 17 58 31 72.6 181.9 0.0 1.6 -8 1 2 14760 18 51 56 18 53 56 --- 18 00 31 72.5 183.5 0.1 3.0 112 R 1 13962 18 53 56 J1751+0939 18 00 31 63.8 184.9 0.1 4.0 -23 1 2 13962 18 53 56 18 54 56 =1749+096 18 01 31 63.8 185.5 0.2 4.5 36 R 1 13563 18 54 56 J1752+1734 18 01 31 71.7 186.5 0.1 5.6 -22 1 2 13563 18 54 56 18 55 56 =1750+175 18 02 31 71.7 187.3 0.2 6.2 38 R 1 13164 Schedule for VLBA_LA (Code La ) 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 18 02 31 72.5 185.0 0.1 4.3 -8 1 2 13164 18 55 56 18 57 55 --- 18 04 31 72.5 186.6 0.1 5.6 112 R 1 12366 18 57 55 J1751+0939 18 04 31 63.7 187.1 0.2 5.9 -24 1 2 12366 18 57 55 18 58 55 =1749+096 18 05 31 63.7 187.7 0.2 6.3 36 R 1 11967 18 58 55 J1752+1734 18 05 31 71.6 189.5 0.2 8.1 -22 1 2 11967 18 58 55 18 59 55 =1750+175 18 06 31 71.5 190.3 0.2 8.7 38 R 1 11568 18 59 55 J1759+2343 18 06 31 77.8 188.0 0.1 7.1 -19 1 2 11568 18 59 55 19 00 55 =1756+237 18 07 31 77.8 189.1 0.1 8.1 41 R 1 11169 19 00 55 J1745+1814 18 07 31 71.8 196.5 0.4 14.1 -18 1 2 11169 19 00 55 19 01 55 =1743+182 18 08 31 71.8 197.3 0.4 14.7 42 R 1 10771 19 01 55 J1745+1720 18 08 31 70.9 196.8 0.4 14.2 -8 1 2 10771 19 01 55 19 02 55 =1743+173 18 09 31 70.8 197.5 0.4 14.8 52 R 1 10372 19 02 55 J1728+1215 18 09 31 64.7 204.2 0.7 19.9 -18 1 2 10372 19 02 55 19 03 54 =1725+123 18 10 31 64.6 204.7 0.7 20.3 42 R 1 9973 19 05 55 J1642+3948 18 12 32 71.9 289.6 1.5 95.8 58 1 2 9973 19 05 55 19 08 55 =1641+399 18 15 32 71.4 289.4 1.5 95.1 180 R 1 8776 19 08 55 J1751+0939 18 15 32 63.3 193.2 0.4 10.8 -70 1 2 8776 19 08 55 19 11 24 =1749+096 18 18 02 63.2 194.5 0.4 11.9 79 R 1 7779 19 11 24 J1752+1734 18 18 02 71.0 198.6 0.4 15.8 -22 1 2 7779 19 11 24 19 12 24 =1750+175 18 19 02 70.9 199.3 0.4 16.4 38 R 1 7380 19 12 24 NGC6500 18 19 02 71.8 197.7 0.4 15.0 -8 1 2 7380 19 12 24 19 14 24 --- 18 21 02 71.7 199.1 0.4 16.3 112 R 1 6582 19 14 24 J1751+0939 18 21 02 63.0 196.1 0.5 13.2 -23 1 2 6582 19 14 24 19 15 24 =1749+096 18 22 02 63.0 196.6 0.5 13.6 36 R 1 6183 19 15 24 J1752+1734 18 22 02 70.7 201.4 0.5 18.1 -21 1 2 6183 19 15 24 19 16 23 =1750+175 18 23 02 70.6 202.1 0.5 18.7 38 R 1 5784 19 16 23 NGC6500 18 23 02 71.6 200.6 0.4 17.5 -8 1 2 5784 19 16 23 19 18 23 --- 18 25 02 71.4 202.0 0.5 18.7 112 R 1 4986 Schedule for VLBA_LA (Code La ) 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 18 25 02 62.8 198.2 0.6 14.9 -23 1 2 4986 19 18 23 19 19 23 =1749+096 18 26 02 62.7 198.7 0.6 15.3 37 R 1 4587 19 19 23 J1752+1734 18 26 02 70.4 204.1 0.6 20.4 -21 1 2 4587 19 19 23 19 20 23 =1750+175 18 27 02 70.3 204.8 0.6 20.9 39 R 1 4189 19 20 23 NGC6500 18 27 02 71.3 203.4 0.5 19.9 -8 1 2 4189 19 20 23 19 22 22 --- 18 29 02 71.1 204.8 0.5 21.0 112 R 1 3391 19 22 22 J1751+0939 18 29 02 62.5 200.3 0.6 16.6 -23 1 2 3391 19 22 22 19 23 22 =1749+096 18 30 02 62.5 200.8 0.6 17.0 37 R 1 2992 19 23 22 J1752+1734 18 30 02 70.0 206.7 0.6 22.5 -21 1 2 2992 19 23 22 19 24 22 =1750+175 18 31 02 69.9 207.4 0.6 23.0 39 R 1 2593 19 24 22 NGC6500 18 31 02 70.9 206.1 0.6 22.1 -8 1 2 2593 19 24 22 19 26 22 --- 18 33 02 70.7 207.5 0.6 23.2 112 R 1 1795 19 26 22 J1751+0939 18 33 02 62.2 202.3 0.7 18.2 -23 1 2 1795 19 26 22 19 27 22 =1749+096 18 34 02 62.2 202.8 0.7 18.6 37 R 1 1396 19 27 22 J1752+1734 18 34 02 69.6 209.3 0.7 24.6 -21 1 2 1396 19 27 22 19 28 21 =1750+175 18 35 02 69.5 209.9 0.7 25.1 39 R 1 997 19 28 21 NGC6500 18 35 02 70.6 208.8 0.6 24.3 -8 1 2 997 19 28 21 19 30 21 --- 18 37 02 70.4 210.1 0.7 25.4 112 R 1 199 19 30 21 J1751+0939 18 37 02 61.9 204.3 0.8 19.8 -23 1 3 199 19 30 21 19 31 21 =1749+096 18 38 02 61.8 204.8 0.8 20.2 37 F 1 598 19 31 21 J1752+1734 18 38 02 69.2 211.7 0.8 26.6 -21 1 3 598 19 31 21 19 32 21 =1750+175 18 39 02 69.1 212.3 0.8 27.1 39 F 1 997 19 32 21 NGC6500 18 39 02 70.2 211.3 0.7 26.4 -8 1 3 997 19 32 21 19 34 20 --- 18 41 02 69.9 212.6 0.7 27.4 112 F 1 1795 19 34 20 J1751+0939 18 41 02 61.6 206.2 0.8 21.3 -23 1 3 1795 19 34 20 19 35 20 =1749+096 18 42 02 61.5 206.7 0.8 21.7 37 F 1 2194 19 35 20 J1752+1734 18 42 02 68.8 214.1 0.8 28.5 -21 1 3 2194 19 35 20 19 36 20 =1750+175 18 43 02 68.7 214.7 0.8 28.9 39 F 1 2593 Schedule for VLBA_LA (Code La ) 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 18 43 02 69.7 213.8 0.8 28.4 -8 1 3 2593 19 36 20 19 38 20 --- 18 45 02 69.5 215.0 0.8 29.3 112 F 1 3391 19 38 20 J1751+0939 18 45 02 61.2 208.2 0.9 22.8 -23 1 3 3391 19 38 20 19 39 20 =1749+096 18 46 02 61.1 208.6 0.9 23.2 37 F 1 3790 19 39 20 J1752+1734 18 46 02 68.3 216.4 0.9 30.3 -20 1 3 3790 19 39 20 19 40 19 =1750+175 18 47 02 68.2 216.9 0.9 30.7 39 F 1 4189 19 40 19 J1759+2343 18 47 02 74.1 223.9 0.8 37.9 -18 1 3 4189 19 40 19 19 41 19 =1756+237 18 48 02 74.0 224.6 0.8 38.5 42 F 1 4587 19 41 19 J1745+1814 18 48 02 67.8 222.1 1.0 34.9 -18 1 3 4587 19 41 19 19 42 19 =1743+182 18 49 02 67.6 222.6 1.0 35.3 41 F 1 4986 19 42 19 J1745+1720 18 49 02 66.8 221.4 1.1 34.2 -8 1 3 4986 19 42 19 19 43 19 =1743+173 18 50 02 66.7 221.9 1.1 34.6 52 F 1 5385 19 43 19 J1728+1215 18 50 02 60.1 223.2 1.4 34.7 -19 1 3 5385 19 43 19 19 44 19 =1725+123 18 51 02 60.0 223.6 1.4 34.9 41 F 1 5784 19 44 19 J1751+0939 18 51 02 60.6 210.9 1.0 25.0 -14 1 3 5784 19 44 19 19 45 19 =1749+096 18 52 02 60.5 211.4 1.0 25.4 45 F 1 6183 19 45 19 J1752+1734 18 52 02 67.6 219.6 1.0 32.9 -20 1 3 6183 19 45 19 19 46 19 =1750+175 18 53 02 67.4 220.1 1.0 33.3 40 F 1 6582 19 46 19 NGC6500 18 53 02 68.5 219.5 0.9 33.0 -8 1 3 6582 19 46 19 19 48 18 --- 18 55 02 68.2 220.6 1.0 33.8 112 F 1 7380 19 48 18 J1751+0939 18 55 02 60.2 212.7 1.1 26.4 -22 1 3 7380 19 48 18 19 49 18 =1749+096 18 56 02 60.1 213.2 1.1 26.8 38 F 1 7779 19 49 18 J1752+1734 18 56 02 67.0 221.7 1.1 34.4 -20 1 3 7779 19 49 18 19 50 18 =1750+175 18 57 02 66.9 222.2 1.1 34.8 40 F 1 8178 19 50 18 NGC6500 18 57 02 68.0 221.7 1.0 34.6 -8 1 3 8178 19 50 18 19 52 18 --- 18 59 02 67.7 222.7 1.0 35.4 112 F 1 8975 19 52 18 J1751+0939 18 59 02 59.7 214.5 1.1 27.8 -22 1 3 8975 19 52 18 19 53 17 =1749+096 19 00 02 59.6 214.9 1.1 28.1 38 F 1 9374 Schedule for VLBA_LA (Code La ) 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 19 00 02 66.5 223.6 1.1 36.0 -20 1 3 9374 19 53 17 19 54 17 =1750+175 19 01 02 66.4 224.1 1.1 36.3 40 F 1 9773 19 54 17 NGC6500 19 01 02 67.4 223.7 1.1 36.2 -8 1 3 9773 19 54 17 19 56 17 --- 19 03 02 67.1 224.7 1.1 36.9 112 F 1 10571 19 56 17 J1751+0939 19 03 02 59.2 216.2 1.2 29.1 -22 1 3 10571 19 56 17 19 57 17 =1749+096 19 04 02 59.1 216.6 1.2 29.4 38 F 1 10970 19 57 17 J1752+1734 19 04 02 65.9 225.5 1.2 37.4 -20 1 3 10970 19 57 17 19 58 17 =1750+175 19 05 02 65.8 226.0 1.2 37.7 40 F 1 11369 19 58 17 NGC6500 19 05 02 66.9 225.6 1.1 37.7 -8 1 3 11369 19 58 17 20 00 16 --- 19 07 02 66.6 226.6 1.2 38.4 112 F 1 12167 20 00 16 J1751+0939 19 07 02 58.8 217.8 1.3 30.3 -22 1 3 12167 20 00 16 20 01 16 =1749+096 19 08 02 58.6 218.3 1.3 30.6 38 F 1 12566 20 01 16 J1752+1734 19 08 02 65.3 227.3 1.3 38.7 -19 1 3 12566 20 01 16 20 02 16 =1750+175 19 09 02 65.2 227.8 1.3 39.1 40 F 1 12964 20 02 16 NGC6500 19 09 02 66.3 227.5 1.2 39.1 -8 1 3 12964 20 02 16 20 04 16 --- 19 11 02 66.0 228.4 1.2 39.7 112 F 1 13762 20 04 16 J1751+0939 19 11 02 58.3 219.5 1.3 31.5 -21 1 3 13762 20 04 16 20 05 15 =1749+096 19 12 02 58.1 219.9 1.3 31.8 38 F 1 14161 20 05 15 J1752+1734 19 12 02 64.7 229.1 1.3 40.0 -19 1 3 14161 20 05 15 20 06 15 =1750+175 19 13 02 64.6 229.5 1.3 40.3 41 F 1 14560 20 06 15 J1759+2343 19 13 02 70.0 238.0 1.2 48.7 -17 1 3 14560 20 06 15 20 07 15 =1756+237 19 14 02 69.8 238.5 1.2 49.0 43 F 1 14959 20 07 15 J1745+1814 19 14 02 63.8 233.7 1.5 43.5 -18 1 3 14959 20 07 15 20 08 15 =1743+182 19 15 02 63.7 234.1 1.5 43.8 42 F 1 15358 20 08 15 J1745+1720 19 15 02 62.9 232.9 1.5 42.7 -7 1 3 15358 20 08 15 20 09 15 =1743+173 19 16 02 62.8 233.3 1.5 42.9 52 F 1 15757 20 09 15 J1728+1215 19 16 02 56.2 232.7 1.8 41.3 -19 1 3 15757 20 09 15 20 10 15 =1725+123 19 17 02 56.0 233.0 1.8 41.6 41 F 1 16156 Schedule for VLBA_LA (Code La ) 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 19 17 02 57.5 221.8 1.4 33.3 -13 1 3 16156 20 10 15 20 11 14 =1749+096 19 18 02 57.3 222.2 1.4 33.6 46 F 1 16555 20 11 14 J1752+1734 19 18 02 63.8 231.6 1.4 41.8 -19 1 3 16555 20 11 14 20 12 14 =1750+175 19 19 02 63.6 232.0 1.4 42.1 41 F 1 16954 20 12 14 NGC6500 19 19 02 64.7 231.9 1.4 42.2 -8 1 4 16954 20 12 14 20 14 14 --- 19 21 02 64.4 232.7 1.4 42.8 112 R 1 17449 20 14 14 J1751+0939 19 21 02 56.9 223.3 1.5 34.4 -21 1 4 17449 20 14 14 20 15 14 =1749+096 19 22 02 56.8 223.7 1.5 34.6 39 R 1 17050 20 15 14 J1752+1734 19 22 02 63.2 233.2 1.5 42.9 -19 1 4 17050 20 15 14 20 16 14 =1750+175 19 23 02 63.0 233.5 1.5 43.2 41 R 1 16651 20 16 14 NGC6500 19 23 02 64.1 233.5 1.4 43.4 -8 1 4 16651 20 16 14 20 18 13 --- 19 25 02 63.7 234.2 1.5 43.9 112 R 1 15853 20 18 13 J1751+0939 19 25 02 56.3 224.8 1.6 35.4 -21 1 4 15853 20 18 13 20 19 13 =1749+096 19 26 02 56.2 225.2 1.6 35.7 39 R 1 15454 20 19 13 J1752+1734 19 26 02 62.5 234.7 1.6 44.0 -19 1 4 15454 20 19 13 20 20 13 =1750+175 19 27 02 62.3 235.0 1.6 44.2 41 R 1 15055 20 20 13 NGC6500 19 27 02 63.4 235.0 1.5 44.4 -8 1 4 15055 20 20 13 20 22 13 --- 19 29 02 63.1 235.8 1.5 45.0 112 R 1 14257 20 22 13 J1751+0939 19 29 02 55.8 226.2 1.6 36.5 -21 1 4 14257 20 22 13 20 23 12 =1749+096 19 30 02 55.6 226.6 1.6 36.7 39 R 1 13858 20 23 12 J1752+1734 19 30 02 61.8 236.1 1.6 45.0 -18 1 4 13858 20 23 12 20 24 12 =1750+175 19 31 02 61.7 236.5 1.6 45.2 41 R 1 13460 20 24 12 NGC6500 19 31 02 62.7 236.5 1.6 45.5 -8 1 4 13460 20 24 12 20 26 12 --- 19 33 02 62.4 237.2 1.6 45.9 112 R 1 12662 20 26 12 J1751+0939 19 33 02 55.2 227.6 1.7 37.4 -20 1 4 12662 20 26 12 20 27 12 =1749+096 19 34 02 55.0 228.0 1.7 37.7 39 R 1 12263 20 27 12 J1752+1734 19 34 02 61.1 237.5 1.7 45.9 -18 1 4 12263 20 27 12 20 28 12 =1750+175 19 35 02 61.0 237.9 1.7 46.1 42 R 1 11864 Schedule for VLBA_LA (Code La ) 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 19 35 02 62.1 237.9 1.6 46.4 -8 1 4 11864 20 28 12 20 30 11 --- 19 37 02 61.7 238.6 1.7 46.9 112 R 1 11066 20 30 11 J1751+0939 19 37 02 54.6 229.0 1.8 38.4 -20 1 4 11066 20 30 11 20 31 11 =1749+096 19 38 02 54.4 229.3 1.8 38.6 40 R 1 10667 20 31 11 J1752+1734 19 38 02 60.5 238.9 1.8 46.8 -18 1 4 10667 20 31 11 20 32 11 =1750+175 19 39 02 60.3 239.2 1.8 47.0 42 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