COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs Exp. Code: bn021af 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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 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 13 45 30 J1751+0939 17 07 30 62.0 156.2 -0.7 -19.4 0 1 1 0 13 45 30 13 47 29 =1749+096 17 09 30 62.2 157.2 -0.7 -18.6 120 F 1 798 13 47 29 J1752+1734 17 09 30 69.4 149.3 -0.7 -25.8 -20 1 1 798 13 47 29 13 48 29 =1750+175 17 10 30 69.5 149.9 -0.7 -25.3 39 F 1 1197 13 48 29 NGC6500 17 10 30 69.8 146.9 -0.8 -27.8 -8 1 1 1197 13 48 29 13 50 29 --- 17 12 30 70.1 148.2 -0.7 -26.8 112 F 1 1995 13 50 29 J1751+0939 17 12 30 62.4 158.8 -0.7 -17.3 -21 1 1 1995 13 50 29 13 51 29 =1749+096 17 13 30 62.5 159.3 -0.6 -16.9 38 F 1 2393 13 51 29 J1752+1734 17 13 30 69.8 151.8 -0.7 -23.7 -21 1 1 2393 13 51 29 13 52 29 =1750+175 17 14 30 69.9 152.4 -0.6 -23.2 39 F 1 2792 13 52 29 NGC6500 17 14 30 70.3 149.4 -0.7 -25.8 -8 1 1 2792 13 52 29 13 54 28 --- 17 16 30 70.5 150.7 -0.7 -24.7 112 F 1 3590 13 54 28 J1751+0939 17 16 30 62.7 160.8 -0.6 -15.7 -22 1 1 3590 13 54 28 13 55 28 =1749+096 17 17 30 62.7 161.3 -0.6 -15.3 38 F 1 3989 13 55 28 J1752+1734 17 17 30 70.2 154.4 -0.6 -21.6 -21 1 1 3989 13 55 28 13 56 28 =1750+175 17 18 30 70.3 155.0 -0.6 -21.1 39 F 1 4388 13 56 28 NGC6500 17 18 30 70.7 152.0 -0.6 -23.6 -8 1 1 4388 13 56 28 13 58 28 --- 17 20 30 70.9 153.3 -0.6 -22.6 112 F 1 5186 13 58 28 J1751+0939 17 20 30 62.9 162.9 -0.5 -14.0 -22 1 1 5186 13 58 28 13 59 27 =1749+096 17 21 30 63.0 163.4 -0.5 -13.6 38 F 1 5585 13 59 27 J1752+1734 17 21 30 70.5 157.0 -0.5 -19.4 -21 1 1 5585 13 59 27 14 00 27 =1750+175 17 22 30 70.6 157.7 -0.5 -18.9 39 F 1 5984 14 00 27 NGC6500 17 22 30 71.0 154.7 -0.6 -21.4 -8 1 1 5984 14 00 27 14 02 27 --- 17 24 30 71.2 156.1 -0.5 -20.3 112 F 1 6781 14 02 27 J1751+0939 17 24 30 63.1 165.0 -0.5 -12.3 -22 1 1 6781 14 02 27 14 03 27 =1749+096 17 25 30 63.2 165.5 -0.4 -11.9 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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 14 03 27 J1752+1734 17 25 30 70.8 159.7 -0.5 -17.1 -21 1 1 7180 14 03 27 14 04 27 =1750+175 17 26 30 70.9 160.4 -0.4 -16.6 39 F 1 7579 14 04 27 NGC6500 17 26 30 71.4 157.5 -0.5 -19.1 -8 1 1 7579 14 04 27 14 06 26 --- 17 28 30 71.5 158.9 -0.5 -17.9 112 F 1 8377 14 06 26 J1751+0939 17 28 30 63.3 167.2 -0.4 -10.5 -22 1 1 8377 14 06 26 14 07 26 =1749+096 17 29 30 63.4 167.7 -0.4 -10.1 37 F 1 8776 14 07 26 J1752+1734 17 29 30 71.1 162.5 -0.4 -14.8 -21 1 1 8776 14 07 26 14 08 26 =1750+175 17 30 30 71.1 163.3 -0.4 -14.2 38 F 1 9175 14 08 26 NGC6500 17 30 30 71.7 160.3 -0.4 -16.7 -8 1 1 9175 14 08 26 14 10 26 --- 17 32 30 71.8 161.8 -0.4 -15.5 112 F 1 9973 14 10 26 J1751+0939 17 32 30 63.5 169.3 -0.3 -8.8 -23 1 1 9973 14 10 26 14 11 25 =1749+096 17 33 30 63.5 169.9 -0.3 -8.3 37 F 1 10372 14 11 25 J1752+1734 17 33 30 71.3 165.4 -0.3 -12.4 -21 1 1 10372 14 11 25 14 12 25 =1750+175 17 34 30 71.3 166.1 -0.3 -11.8 38 F 1 10771 14 12 25 NGC6500 17 34 30 71.9 163.2 -0.4 -14.3 -8 1 1 10771 14 12 25 14 14 25 --- 17 36 30 72.0 164.7 -0.3 -13.0 112 F 1 11568 14 14 25 J1751+0939 17 36 30 63.6 171.5 -0.3 -7.0 -23 1 1 11568 14 14 25 14 15 25 =1749+096 17 37 30 63.7 172.1 -0.2 -6.5 37 F 1 11967 14 15 25 J1752+1734 17 37 30 71.5 168.3 -0.3 -9.9 -22 1 1 11967 14 15 25 14 16 25 =1750+175 17 38 30 71.5 169.1 -0.2 -9.3 38 F 1 12366 14 16 25 J1759+2343 17 38 30 77.1 158.2 -0.3 -19.2 -17 1 1 12366 14 16 25 14 17 24 =1756+237 17 39 30 77.2 159.2 -0.3 -18.3 43 F 1 12765 14 17 24 J1745+1814 17 39 30 72.4 174.8 -0.1 -4.4 -16 1 1 12765 14 17 24 14 18 24 =1743+182 17 40 30 72.4 175.6 -0.1 -3.8 43 F 1 13164 14 18 24 J1745+1720 17 40 30 71.5 176.0 -0.1 -3.4 -8 1 1 13164 14 18 24 14 19 24 =1743+173 17 41 30 71.5 176.8 -0.1 -2.7 52 F 1 13563 14 19 24 J1728+1215 17 41 30 66.3 188.0 0.2 6.7 -16 1 1 13563 14 19 24 14 20 24 =1725+123 17 42 30 66.3 188.6 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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 14 22 25 J1751+0939 17 44 31 63.8 176.0 -0.1 -3.3 106 1 1 13962 14 22 25 14 23 24 =1749+096 17 45 31 63.8 176.5 -0.1 -2.9 60 F 1 14361 14 23 24 J1752+1734 17 45 31 71.7 174.4 -0.1 -4.8 -22 1 1 14361 14 23 24 14 24 24 =1750+175 17 46 31 71.7 175.1 -0.1 -4.2 38 F 1 14760 14 24 24 NGC6500 17 46 31 72.4 172.4 -0.2 -6.5 -8 1 1 14760 14 24 24 14 26 24 --- 17 48 31 72.5 174.0 -0.1 -5.2 112 F 1 15557 14 26 24 J1751+0939 17 48 31 63.9 178.2 -0.1 -1.5 -23 1 1 15557 14 26 24 14 27 24 =1749+096 17 49 31 63.9 178.8 0.0 -1.0 37 F 1 15956 14 27 24 J1752+1734 17 49 31 71.8 177.4 -0.1 -2.2 -22 1 1 15956 14 27 24 14 28 24 =1750+175 17 50 31 71.8 178.2 0.0 -1.6 38 F 1 16355 14 28 24 NGC6500 17 50 31 72.5 175.5 -0.1 -3.8 -8 1 1 16355 14 28 24 14 30 23 --- 17 52 31 72.5 177.1 -0.1 -2.5 112 F 1 17153 14 30 23 J1751+0939 17 52 31 63.9 180.4 0.0 0.4 -23 1 2 17153 14 30 23 14 31 23 =1749+096 17 53 31 63.9 181.0 0.0 0.8 36 R 1 16754 14 31 23 J1752+1734 17 53 31 71.8 180.4 0.0 0.4 -22 1 2 16754 14 31 23 14 32 23 =1750+175 17 54 31 71.8 181.2 0.0 1.0 38 R 1 16355 14 32 23 NGC6500 17 54 31 72.6 178.7 0.0 -1.1 -8 1 2 16355 14 32 23 14 34 23 --- 17 56 31 72.6 180.3 0.0 0.2 112 R 1 15557 14 34 23 J1751+0939 17 56 31 63.8 182.7 0.1 2.2 -23 1 2 15557 14 34 23 14 35 22 =1749+096 17 57 31 63.8 183.2 0.1 2.7 36 R 1 15159 14 35 22 J1752+1734 17 57 31 71.8 183.5 0.1 3.0 -22 1 2 15159 14 35 22 14 36 22 =1750+175 17 58 31 71.7 184.2 0.1 3.6 38 R 1 14760 14 36 22 NGC6500 17 58 31 72.5 181.9 0.0 1.6 -8 1 2 14760 14 36 22 14 38 22 --- 18 00 31 72.5 183.4 0.1 2.9 112 R 1 13962 14 38 22 J1751+0939 18 00 31 63.8 184.9 0.1 4.0 -23 1 2 13962 14 38 22 14 39 22 =1749+096 18 01 31 63.8 185.5 0.2 4.5 36 R 1 13563 14 39 22 J1752+1734 18 01 31 71.7 186.5 0.1 5.5 -22 1 2 13563 14 39 22 14 40 22 =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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 14 40 22 NGC6500 18 02 31 72.5 185.0 0.1 4.3 -8 1 2 13164 14 40 22 14 42 21 --- 18 04 31 72.5 186.6 0.1 5.6 112 R 1 12366 14 42 21 J1751+0939 18 04 31 63.7 187.1 0.2 5.9 -24 1 2 12366 14 42 21 14 43 21 =1749+096 18 05 31 63.7 187.7 0.2 6.3 36 R 1 11967 14 43 21 J1752+1734 18 05 31 71.6 189.5 0.2 8.1 -22 1 2 11967 14 43 21 14 44 21 =1750+175 18 06 31 71.5 190.3 0.2 8.7 38 R 1 11568 14 44 21 J1759+2343 18 06 31 77.8 188.0 0.1 7.1 -19 1 2 11568 14 44 21 14 45 21 =1756+237 18 07 31 77.8 189.1 0.1 8.0 41 R 1 11169 14 45 21 J1745+1814 18 07 31 71.8 196.5 0.4 14.1 -18 1 2 11169 14 45 21 14 46 21 =1743+182 18 08 31 71.8 197.3 0.4 14.7 42 R 1 10771 14 46 21 J1745+1720 18 08 31 70.9 196.8 0.4 14.2 -8 1 2 10771 14 46 21 14 47 21 =1743+173 18 09 31 70.8 197.5 0.4 14.8 52 R 1 10372 14 47 21 J1728+1215 18 09 31 64.7 204.1 0.7 19.9 -18 1 2 10372 14 47 21 14 48 20 =1725+123 18 10 31 64.6 204.7 0.7 20.3 42 R 1 9973 14 50 21 J1642+3948 18 12 32 71.9 289.6 1.5 95.8 58 1 2 9973 14 50 21 14 53 21 =1641+399 18 15 32 71.4 289.4 1.5 95.1 180 R 1 8776 14 53 21 J1751+0939 18 15 32 63.3 193.2 0.4 10.8 -70 1 2 8776 14 53 21 14 55 50 =1749+096 18 18 02 63.2 194.5 0.4 11.9 79 R 1 7779 14 55 50 J1752+1734 18 18 02 71.0 198.6 0.4 15.8 -22 1 2 7779 14 55 50 14 56 50 =1750+175 18 19 02 70.9 199.3 0.4 16.4 38 R 1 7380 14 56 50 NGC6500 18 19 02 71.8 197.7 0.4 15.0 -8 1 2 7380 14 56 50 14 58 50 --- 18 21 02 71.7 199.1 0.4 16.3 112 R 1 6582 14 58 50 J1751+0939 18 21 02 63.0 196.1 0.5 13.2 -23 1 2 6582 14 58 50 14 59 49 =1749+096 18 22 02 63.0 196.6 0.5 13.6 36 R 1 6183 14 59 49 J1752+1734 18 22 02 70.7 201.4 0.5 18.1 -21 1 2 6183 14 59 49 15 00 49 =1750+175 18 23 02 70.6 202.1 0.5 18.7 38 R 1 5784 15 00 49 NGC6500 18 23 02 71.6 200.6 0.4 17.5 -8 1 2 5784 15 00 49 15 02 49 --- 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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 15 02 49 J1751+0939 18 25 02 62.8 198.2 0.6 14.9 -23 1 2 4986 15 02 49 15 03 49 =1749+096 18 26 02 62.7 198.7 0.6 15.3 37 R 1 4587 15 03 49 J1752+1734 18 26 02 70.4 204.1 0.6 20.3 -21 1 2 4587 15 03 49 15 04 49 =1750+175 18 27 02 70.3 204.8 0.6 20.9 39 R 1 4189 15 04 49 NGC6500 18 27 02 71.3 203.4 0.5 19.8 -8 1 2 4189 15 04 49 15 06 48 --- 18 29 02 71.1 204.8 0.5 21.0 112 R 1 3391 15 06 48 J1751+0939 18 29 02 62.5 200.3 0.6 16.6 -23 1 2 3391 15 06 48 15 07 48 =1749+096 18 30 02 62.5 200.8 0.6 17.0 37 R 1 2992 15 07 48 J1752+1734 18 30 02 70.0 206.7 0.6 22.5 -21 1 2 2992 15 07 48 15 08 48 =1750+175 18 31 02 69.9 207.4 0.6 23.0 39 R 1 2593 15 08 48 NGC6500 18 31 02 70.9 206.1 0.6 22.1 -8 1 2 2593 15 08 48 15 10 48 --- 18 33 02 70.7 207.5 0.6 23.2 112 R 1 1795 15 10 48 J1751+0939 18 33 02 62.2 202.3 0.7 18.2 -23 1 2 1795 15 10 48 15 11 48 =1749+096 18 34 02 62.2 202.8 0.7 18.6 37 R 1 1396 15 11 48 J1752+1734 18 34 02 69.6 209.3 0.7 24.6 -21 1 2 1396 15 11 48 15 12 47 =1750+175 18 35 02 69.5 209.9 0.7 25.1 39 R 1 997 15 12 47 NGC6500 18 35 02 70.6 208.8 0.6 24.3 -8 1 2 997 15 12 47 15 14 47 --- 18 37 02 70.4 210.1 0.7 25.3 112 R 1 199 15 14 47 J1751+0939 18 37 02 61.9 204.3 0.8 19.8 -23 1 3 199 15 14 47 15 15 47 =1749+096 18 38 02 61.8 204.8 0.8 20.2 37 F 1 598 15 15 47 J1752+1734 18 38 02 69.2 211.7 0.8 26.6 -21 1 3 598 15 15 47 15 16 47 =1750+175 18 39 02 69.1 212.3 0.8 27.1 39 F 1 997 15 16 47 NGC6500 18 39 02 70.1 211.3 0.7 26.4 -8 1 3 997 15 16 47 15 18 46 --- 18 41 02 69.9 212.6 0.7 27.4 112 F 1 1795 15 18 46 J1751+0939 18 41 02 61.6 206.2 0.8 21.3 -23 1 3 1795 15 18 46 15 19 46 =1749+096 18 42 02 61.5 206.7 0.8 21.7 37 F 1 2194 15 19 46 J1752+1734 18 42 02 68.8 214.1 0.8 28.5 -21 1 3 2194 15 19 46 15 20 46 =1750+175 18 43 02 68.7 214.6 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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 15 20 46 NGC6500 18 43 02 69.7 213.8 0.8 28.4 -8 1 3 2593 15 20 46 15 22 46 --- 18 45 02 69.5 215.0 0.8 29.3 112 F 1 3391 15 22 46 J1751+0939 18 45 02 61.2 208.1 0.9 22.8 -23 1 3 3391 15 22 46 15 23 46 =1749+096 18 46 02 61.1 208.6 0.9 23.2 37 F 1 3790 15 23 46 J1752+1734 18 46 02 68.3 216.3 0.9 30.3 -20 1 3 3790 15 23 46 15 24 45 =1750+175 18 47 02 68.2 216.9 0.9 30.7 39 F 1 4189 15 24 45 J1759+2343 18 47 02 74.1 223.9 0.8 37.9 -18 1 3 4189 15 24 45 15 25 45 =1756+237 18 48 02 74.0 224.6 0.8 38.5 42 F 1 4587 15 25 45 J1745+1814 18 48 02 67.8 222.0 1.0 34.9 -18 1 3 4587 15 25 45 15 26 45 =1743+182 18 49 02 67.6 222.6 1.0 35.3 41 F 1 4986 15 26 45 J1745+1720 18 49 02 66.8 221.4 1.1 34.2 -8 1 3 4986 15 26 45 15 27 45 =1743+173 18 50 02 66.7 221.9 1.1 34.6 52 F 1 5385 15 27 45 J1728+1215 18 50 02 60.1 223.2 1.4 34.6 -19 1 3 5385 15 27 45 15 28 45 =1725+123 18 51 02 60.0 223.6 1.4 34.9 41 F 1 5784 15 28 45 J1751+0939 18 51 02 60.6 210.9 1.0 25.0 -14 1 3 5784 15 28 45 15 29 45 =1749+096 18 52 02 60.5 211.4 1.0 25.4 45 F 1 6183 15 29 45 J1752+1734 18 52 02 67.6 219.6 1.0 32.8 -20 1 3 6183 15 29 45 15 30 44 =1750+175 18 53 02 67.4 220.1 1.0 33.2 40 F 1 6582 15 30 44 NGC6500 18 53 02 68.5 219.5 0.9 32.9 -8 1 3 6582 15 30 44 15 32 44 --- 18 55 02 68.2 220.6 1.0 33.8 112 F 1 7380 15 32 44 J1751+0939 18 55 02 60.2 212.7 1.1 26.4 -22 1 3 7380 15 32 44 15 33 44 =1749+096 18 56 02 60.1 213.2 1.1 26.7 38 F 1 7779 15 33 44 J1752+1734 18 56 02 67.0 221.6 1.1 34.4 -20 1 3 7779 15 33 44 15 34 44 =1750+175 18 57 02 66.9 222.1 1.1 34.8 40 F 1 8178 15 34 44 NGC6500 18 57 02 68.0 221.6 1.0 34.6 -8 1 3 8178 15 34 44 15 36 43 --- 18 59 02 67.7 222.7 1.0 35.4 112 F 1 8975 15 36 43 J1751+0939 18 59 02 59.7 214.5 1.1 27.8 -22 1 3 8975 15 36 43 15 37 43 =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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 15 37 43 J1752+1734 19 00 02 66.5 223.6 1.1 35.9 -20 1 3 9374 15 37 43 15 38 43 =1750+175 19 01 02 66.4 224.1 1.1 36.3 40 F 1 9773 15 38 43 NGC6500 19 01 02 67.4 223.7 1.1 36.2 -8 1 3 9773 15 38 43 15 40 43 --- 19 03 02 67.1 224.7 1.1 36.9 112 F 1 10571 15 40 43 J1751+0939 19 03 02 59.2 216.2 1.2 29.1 -22 1 3 10571 15 40 43 15 41 43 =1749+096 19 04 02 59.1 216.6 1.2 29.4 38 F 1 10970 15 41 43 J1752+1734 19 04 02 65.9 225.5 1.2 37.4 -20 1 3 10970 15 41 43 15 42 42 =1750+175 19 05 02 65.8 226.0 1.2 37.7 40 F 1 11369 15 42 42 NGC6500 19 05 02 66.9 225.6 1.1 37.7 -8 1 3 11369 15 42 42 15 44 42 --- 19 07 02 66.6 226.6 1.2 38.4 112 F 1 12167 15 44 42 J1751+0939 19 07 02 58.8 217.8 1.3 30.3 -22 1 3 12167 15 44 42 15 45 42 =1749+096 19 08 02 58.6 218.2 1.3 30.6 38 F 1 12566 15 45 42 J1752+1734 19 08 02 65.3 227.3 1.3 38.7 -19 1 3 12566 15 45 42 15 46 42 =1750+175 19 09 02 65.2 227.8 1.3 39.1 40 F 1 12964 15 46 42 NGC6500 19 09 02 66.3 227.5 1.2 39.1 -8 1 3 12964 15 46 42 15 48 41 --- 19 11 02 66.0 228.4 1.2 39.7 112 F 1 13762 15 48 41 J1751+0939 19 11 02 58.3 219.5 1.3 31.5 -21 1 3 13762 15 48 41 15 49 41 =1749+096 19 12 02 58.1 219.9 1.3 31.8 38 F 1 14161 15 49 41 J1752+1734 19 12 02 64.7 229.1 1.3 40.0 -19 1 3 14161 15 49 41 15 50 41 =1750+175 19 13 02 64.6 229.5 1.3 40.3 41 F 1 14560 15 50 41 J1759+2343 19 13 02 70.0 238.0 1.2 48.7 -17 1 3 14560 15 50 41 15 51 41 =1756+237 19 14 02 69.8 238.4 1.2 49.0 43 F 1 14959 15 51 41 J1745+1814 19 14 02 63.8 233.7 1.5 43.5 -18 1 3 14959 15 51 41 15 52 41 =1743+182 19 15 02 63.7 234.1 1.5 43.8 42 F 1 15358 15 52 41 J1745+1720 19 15 02 62.9 232.9 1.5 42.6 -7 1 3 15358 15 52 41 15 53 41 =1743+173 19 16 02 62.8 233.2 1.5 42.9 52 F 1 15757 15 53 41 J1728+1215 19 16 02 56.2 232.7 1.8 41.3 -19 1 3 15757 15 53 41 15 54 40 =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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 15 54 40 J1751+0939 19 17 02 57.5 221.8 1.4 33.3 -13 1 3 16156 15 54 40 15 55 40 =1749+096 19 18 02 57.3 222.2 1.4 33.5 46 F 1 16555 15 55 40 J1752+1734 19 18 02 63.8 231.6 1.4 41.8 -19 1 3 16555 15 55 40 15 56 40 =1750+175 19 19 02 63.6 232.0 1.4 42.1 41 F 1 16954 15 56 40 NGC6500 19 19 02 64.7 231.8 1.4 42.2 -8 1 4 16954 15 56 40 15 58 40 --- 19 21 02 64.4 232.7 1.4 42.8 112 R 1 17449 15 58 40 J1751+0939 19 21 02 56.9 223.3 1.5 34.4 -21 1 4 17449 15 58 40 15 59 40 =1749+096 19 22 02 56.8 223.7 1.5 34.6 39 R 1 17050 15 59 40 J1752+1734 19 22 02 63.2 233.1 1.5 42.9 -19 1 4 17050 15 59 40 16 00 39 =1750+175 19 23 02 63.0 233.5 1.5 43.2 41 R 1 16651 16 00 39 NGC6500 19 23 02 64.1 233.5 1.4 43.4 -8 1 4 16651 16 00 39 16 02 39 --- 19 25 02 63.7 234.2 1.5 43.9 112 R 1 15853 16 02 39 J1751+0939 19 25 02 56.3 224.8 1.6 35.4 -21 1 4 15853 16 02 39 16 03 39 =1749+096 19 26 02 56.2 225.1 1.6 35.7 39 R 1 15454 16 03 39 J1752+1734 19 26 02 62.5 234.7 1.6 44.0 -19 1 4 15454 16 03 39 16 04 39 =1750+175 19 27 02 62.3 235.0 1.6 44.2 41 R 1 15055 16 04 39 NGC6500 19 27 02 63.4 235.0 1.5 44.4 -8 1 4 15055 16 04 39 16 06 38 --- 19 29 02 63.1 235.7 1.5 44.9 112 R 1 14257 16 06 38 J1751+0939 19 29 02 55.8 226.2 1.6 36.4 -21 1 4 14257 16 06 38 16 07 38 =1749+096 19 30 02 55.6 226.6 1.6 36.7 39 R 1 13858 16 07 38 J1752+1734 19 30 02 61.8 236.1 1.6 44.9 -18 1 4 13858 16 07 38 16 08 38 =1750+175 19 31 02 61.7 236.5 1.6 45.2 41 R 1 13460 16 08 38 NGC6500 19 31 02 62.7 236.5 1.6 45.4 -8 1 4 13460 16 08 38 16 10 38 --- 19 33 02 62.4 237.2 1.6 45.9 112 R 1 12662 16 10 38 J1751+0939 19 33 02 55.2 227.6 1.7 37.4 -20 1 4 12662 16 10 38 16 11 38 =1749+096 19 34 02 55.0 227.9 1.7 37.7 39 R 1 12263 16 11 38 J1752+1734 19 34 02 61.1 237.5 1.7 45.9 -18 1 4 12263 16 11 38 16 12 38 =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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 16 12 38 NGC6500 19 35 02 62.1 237.9 1.6 46.4 -8 1 4 11864 16 12 38 16 14 37 --- 19 37 02 61.7 238.6 1.7 46.8 112 R 1 11066 16 14 37 J1751+0939 19 37 02 54.6 229.0 1.8 38.4 -20 1 4 11066 16 14 37 16 15 37 =1749+096 19 38 02 54.4 229.3 1.8 38.6 40 R 1 10667 16 15 37 J1752+1734 19 38 02 60.5 238.9 1.8 46.8 -18 1 4 10667 16 15 37 16 16 37 =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 09.612266 18 20 39.91157 * 18 20 17.66100 18 19 56.61605 From catalog imbedded in main SCHED input file. * J1642+3948 16 41 17.606214 * 16 42 58.809952 16 43 06.755956 1641+399 39 54 10.81489 * 39 48 36.99395 39 47 46.34942 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 17.669011 1725+123 12 18 03.42295 * 12 15 39.48600 12 15 10.37022 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 45.208797 1743+173 17 21 09.18610 * 17 20 01.42341 17 19 36.96689 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 05.831542 1743+182 18 15 56.63458 * 18 14 50.42224 18 14 25.85051 /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 43.541318 1749+096 09 39 42.82596 * 09 39 00.72851 09 38 40.45257 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 55.932767 1750+175 17 34 56.75234 * 17 34 20.35028 17 33 58.35777 /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 09.580558 1756+237 23 43 55.77912 * 23 43 46.95379 23 43 25.68862 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 74.9 J1642+3948 94.8 J1728+1215 80.2 J1745+1720 77.1 J1745+1814 77.2 J1751+0939 74.0 J1752+1734 75.5 J1759+2343 75.7 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