COVER INFORMATION Station: VLBA_LA (Code La ) 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_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 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 17 07 30 62.0 156.2 -0.7 -19.4 0 1 1 0 09 45 39 09 47 39 =1749+096 17 09 30 62.2 157.2 -0.7 -18.6 120 F 1 798 09 47 39 J1752+1734 17 09 30 69.4 149.3 -0.7 -25.8 -20 1 1 798 09 47 39 09 48 39 =1750+175 17 10 30 69.5 149.9 -0.7 -25.3 39 F 1 1197 09 48 39 NGC6500 17 10 30 69.8 146.9 -0.8 -27.8 -8 1 1 1197 09 48 39 09 50 38 --- 17 12 30 70.1 148.2 -0.7 -26.8 112 F 1 1995 09 50 38 J1751+0939 17 12 30 62.4 158.7 -0.7 -17.4 -21 1 1 1995 09 50 38 09 51 38 =1749+096 17 13 30 62.5 159.2 -0.6 -17.0 38 F 1 2393 09 51 38 J1752+1734 17 13 30 69.8 151.8 -0.7 -23.7 -21 1 1 2393 09 51 38 09 52 38 =1750+175 17 14 30 69.9 152.4 -0.6 -23.2 39 F 1 2792 09 52 38 NGC6500 17 14 30 70.3 149.4 -0.7 -25.8 -8 1 1 2792 09 52 38 09 54 38 --- 17 16 30 70.5 150.7 -0.7 -24.7 112 F 1 3590 09 54 38 J1751+0939 17 16 30 62.7 160.8 -0.6 -15.7 -22 1 1 3590 09 54 38 09 55 38 =1749+096 17 17 30 62.7 161.3 -0.6 -15.3 38 F 1 3989 09 55 38 J1752+1734 17 17 30 70.2 154.3 -0.6 -21.6 -21 1 1 3989 09 55 38 09 56 37 =1750+175 17 18 30 70.3 155.0 -0.6 -21.1 39 F 1 4388 09 56 37 NGC6500 17 18 30 70.7 152.0 -0.6 -23.7 -8 1 1 4388 09 56 37 09 58 37 --- 17 20 30 70.9 153.3 -0.6 -22.6 112 F 1 5186 09 58 37 J1751+0939 17 20 30 62.9 162.9 -0.5 -14.0 -22 1 1 5186 09 58 37 09 59 37 =1749+096 17 21 30 63.0 163.4 -0.5 -13.6 38 F 1 5585 09 59 37 J1752+1734 17 21 30 70.5 157.0 -0.5 -19.4 -21 1 1 5585 09 59 37 10 00 37 =1750+175 17 22 30 70.6 157.7 -0.5 -18.9 39 F 1 5984 10 00 37 NGC6500 17 22 30 71.0 154.7 -0.6 -21.5 -8 1 1 5984 10 00 37 10 02 36 --- 17 24 30 71.2 156.0 -0.5 -20.3 112 F 1 6781 10 02 36 J1751+0939 17 24 30 63.1 165.0 -0.5 -12.3 -22 1 1 6781 10 02 36 10 03 36 =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) ---------------------------------------------------------------------------------------- --- Wed 28 Apr 2004 Day 119 --- 10 03 36 J1752+1734 17 25 30 70.8 159.7 -0.5 -17.2 -21 1 1 7180 10 03 36 10 04 36 =1750+175 17 26 30 70.9 160.4 -0.4 -16.6 39 F 1 7579 10 04 36 NGC6500 17 26 30 71.4 157.4 -0.5 -19.1 -8 1 1 7579 10 04 36 10 06 36 --- 17 28 30 71.5 158.8 -0.5 -18.0 112 F 1 8377 10 06 36 J1751+0939 17 28 30 63.3 167.1 -0.4 -10.6 -22 1 1 8377 10 06 36 10 07 36 =1749+096 17 29 30 63.4 167.7 -0.4 -10.1 37 F 1 8776 10 07 36 J1752+1734 17 29 30 71.1 162.5 -0.4 -14.8 -21 1 1 8776 10 07 36 10 08 35 =1750+175 17 30 30 71.1 163.2 -0.4 -14.2 38 F 1 9175 10 08 35 NGC6500 17 30 30 71.7 160.3 -0.4 -16.8 -8 1 1 9175 10 08 35 10 10 35 --- 17 32 30 71.8 161.7 -0.4 -15.5 112 F 1 9973 10 10 35 J1751+0939 17 32 30 63.5 169.3 -0.3 -8.8 -23 1 1 9973 10 10 35 10 11 35 =1749+096 17 33 30 63.5 169.9 -0.3 -8.3 37 F 1 10372 10 11 35 J1752+1734 17 33 30 71.3 165.4 -0.3 -12.4 -21 1 1 10372 10 11 35 10 12 35 =1750+175 17 34 30 71.3 166.1 -0.3 -11.8 38 F 1 10771 10 12 35 NGC6500 17 34 30 71.9 163.2 -0.4 -14.3 -8 1 1 10771 10 12 35 10 14 34 --- 17 36 30 72.0 164.7 -0.3 -13.0 112 F 1 11568 10 14 34 J1751+0939 17 36 30 63.6 171.5 -0.3 -7.0 -23 1 1 11568 10 14 34 10 15 34 =1749+096 17 37 30 63.7 172.1 -0.2 -6.5 37 F 1 11967 10 15 34 J1752+1734 17 37 30 71.5 168.3 -0.3 -9.9 -22 1 1 11967 10 15 34 10 16 34 =1750+175 17 38 30 71.5 169.1 -0.2 -9.3 38 F 1 12366 10 16 34 J1759+2343 17 38 30 77.1 158.2 -0.3 -19.2 -17 1 1 12366 10 16 34 10 17 34 =1756+237 17 39 30 77.2 159.2 -0.3 -18.3 43 F 1 12765 10 17 34 J1745+1814 17 39 30 72.4 174.8 -0.1 -4.5 -16 1 1 12765 10 17 34 10 18 34 =1743+182 17 40 30 72.4 175.6 -0.1 -3.8 43 F 1 13164 10 18 34 J1745+1720 17 40 30 71.5 176.0 -0.1 -3.4 -8 1 1 13164 10 18 34 10 19 34 =1743+173 17 41 30 71.5 176.8 -0.1 -2.7 52 F 1 13563 10 19 34 J1728+1215 17 41 30 66.3 188.0 0.2 6.7 -16 1 1 13563 10 19 34 10 20 33 =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) ---------------------------------------------------------------------------------------- --- Wed 28 Apr 2004 Day 119 --- 10 22 34 J1751+0939 17 44 31 63.8 176.0 -0.1 -3.3 106 1 1 13962 10 22 34 10 23 34 =1749+096 17 45 31 63.8 176.5 -0.1 -2.9 60 F 1 14361 10 23 34 J1752+1734 17 45 31 71.7 174.3 -0.1 -4.8 -22 1 1 14361 10 23 34 10 24 34 =1750+175 17 46 31 71.7 175.1 -0.1 -4.2 38 F 1 14760 10 24 34 NGC6500 17 46 31 72.4 172.4 -0.2 -6.5 -8 1 1 14760 10 24 34 10 26 33 --- 17 48 31 72.5 173.9 -0.1 -5.2 112 F 1 15557 10 26 33 J1751+0939 17 48 31 63.9 178.2 -0.1 -1.5 -23 1 1 15557 10 26 33 10 27 33 =1749+096 17 49 31 63.9 178.7 0.0 -1.0 37 F 1 15956 10 27 33 J1752+1734 17 49 31 71.8 177.4 -0.1 -2.2 -22 1 1 15956 10 27 33 10 28 33 =1750+175 17 50 31 71.8 178.1 0.0 -1.6 38 F 1 16355 10 28 33 NGC6500 17 50 31 72.5 175.5 -0.1 -3.8 -8 1 1 16355 10 28 33 10 30 33 --- 17 52 31 72.5 177.1 -0.1 -2.5 112 F 1 17153 10 30 33 J1751+0939 17 52 31 63.9 180.4 0.0 0.3 -23 1 2 17153 10 30 33 10 31 33 =1749+096 17 53 31 63.9 181.0 0.0 0.8 36 R 1 16754 10 31 33 J1752+1734 17 53 31 71.8 180.4 0.0 0.4 -22 1 2 16754 10 31 33 10 32 32 =1750+175 17 54 31 71.8 181.2 0.0 1.0 38 R 1 16355 10 32 32 NGC6500 17 54 31 72.6 178.7 0.0 -1.1 -8 1 2 16355 10 32 32 10 34 32 --- 17 56 31 72.6 180.3 0.0 0.2 112 R 1 15557 10 34 32 J1751+0939 17 56 31 63.8 182.7 0.1 2.2 -23 1 2 15557 10 34 32 10 35 32 =1749+096 17 57 31 63.8 183.2 0.1 2.6 36 R 1 15159 10 35 32 J1752+1734 17 57 31 71.8 183.5 0.1 2.9 -22 1 2 15159 10 35 32 10 36 32 =1750+175 17 58 31 71.8 184.2 0.1 3.6 38 R 1 14760 10 36 32 NGC6500 17 58 31 72.6 181.8 0.0 1.6 -8 1 2 14760 10 36 32 10 38 32 --- 18 00 31 72.5 183.4 0.1 2.9 112 R 1 13962 10 38 32 J1751+0939 18 00 31 63.8 184.9 0.1 4.0 -23 1 2 13962 10 38 32 10 39 31 =1749+096 18 01 31 63.8 185.4 0.2 4.5 36 R 1 13563 10 39 31 J1752+1734 18 01 31 71.7 186.5 0.1 5.5 -22 1 2 13563 10 39 31 10 40 31 =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 28 Apr 2004 Day 119 --- 10 40 31 NGC6500 18 02 31 72.5 185.0 0.1 4.3 -8 1 2 13164 10 40 31 10 42 31 --- 18 04 31 72.5 186.6 0.1 5.6 112 R 1 12366 10 42 31 J1751+0939 18 04 31 63.7 187.1 0.2 5.8 -24 1 2 12366 10 42 31 10 43 31 =1749+096 18 05 31 63.7 187.7 0.2 6.3 36 R 1 11967 10 43 31 J1752+1734 18 05 31 71.6 189.5 0.2 8.1 -22 1 2 11967 10 43 31 10 44 31 =1750+175 18 06 31 71.5 190.2 0.2 8.7 38 R 1 11568 10 44 31 J1759+2343 18 06 31 77.8 188.0 0.1 7.1 -19 1 2 11568 10 44 31 10 45 30 =1756+237 18 07 31 77.8 189.1 0.1 8.0 41 R 1 11169 10 45 30 J1745+1814 18 07 31 71.8 196.5 0.4 14.0 -18 1 2 11169 10 45 30 10 46 30 =1743+182 18 08 31 71.8 197.2 0.4 14.7 42 R 1 10771 10 46 30 J1745+1720 18 08 31 70.9 196.8 0.4 14.2 -8 1 2 10771 10 46 30 10 47 30 =1743+173 18 09 31 70.8 197.5 0.4 14.8 52 R 1 10372 10 47 30 J1728+1215 18 09 31 64.7 204.1 0.7 19.8 -18 1 2 10372 10 47 30 10 48 30 =1725+123 18 10 31 64.6 204.7 0.7 20.3 42 R 1 9973 10 50 31 J1642+3948 18 12 32 71.9 289.6 1.5 95.8 58 1 2 9973 10 50 31 10 53 30 =1641+399 18 15 32 71.4 289.4 1.5 95.1 180 R 1 8776 10 53 30 J1751+0939 18 15 32 63.3 193.1 0.4 10.8 -70 1 2 8776 10 53 30 10 56 00 =1749+096 18 18 02 63.2 194.5 0.4 11.9 79 R 1 7779 10 56 00 J1752+1734 18 18 02 71.0 198.6 0.4 15.8 -22 1 2 7779 10 56 00 10 56 59 =1750+175 18 19 02 70.9 199.3 0.4 16.3 38 R 1 7380 10 56 59 NGC6500 18 19 02 71.8 197.6 0.4 15.0 -8 1 2 7380 10 56 59 10 58 59 --- 18 21 02 71.7 199.1 0.4 16.2 112 R 1 6582 10 58 59 J1751+0939 18 21 02 63.0 196.1 0.5 13.2 -23 1 2 6582 10 58 59 10 59 59 =1749+096 18 22 02 63.0 196.6 0.5 13.6 36 R 1 6183 10 59 59 J1752+1734 18 22 02 70.7 201.4 0.5 18.1 -21 1 2 6183 10 59 59 11 00 59 =1750+175 18 23 02 70.6 202.1 0.5 18.6 38 R 1 5784 11 00 59 NGC6500 18 23 02 71.6 200.5 0.4 17.5 -8 1 2 5784 11 00 59 11 02 58 --- 18 25 02 71.4 202.0 0.5 18.6 112 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 28 Apr 2004 Day 119 --- 11 02 58 J1751+0939 18 25 02 62.8 198.2 0.6 14.9 -23 1 2 4986 11 02 58 11 03 58 =1749+096 18 26 02 62.7 198.7 0.6 15.3 37 R 1 4587 11 03 58 J1752+1734 18 26 02 70.4 204.1 0.6 20.3 -21 1 2 4587 11 03 58 11 04 58 =1750+175 18 27 02 70.3 204.7 0.6 20.9 39 R 1 4189 11 04 58 NGC6500 18 27 02 71.3 203.4 0.5 19.8 -8 1 2 4189 11 04 58 11 06 58 --- 18 29 02 71.1 204.7 0.5 21.0 112 R 1 3391 11 06 58 J1751+0939 18 29 02 62.5 200.2 0.6 16.5 -23 1 2 3391 11 06 58 11 07 58 =1749+096 18 30 02 62.5 200.8 0.6 17.0 37 R 1 2992 11 07 58 J1752+1734 18 30 02 70.0 206.7 0.6 22.5 -21 1 2 2992 11 07 58 11 08 58 =1750+175 18 31 02 69.9 207.3 0.6 23.0 39 R 1 2593 11 08 58 NGC6500 18 31 02 70.9 206.1 0.6 22.1 -8 1 2 2593 11 08 58 11 10 57 --- 18 33 02 70.8 207.4 0.6 23.2 112 R 1 1795 11 10 57 J1751+0939 18 33 02 62.2 202.3 0.7 18.2 -23 1 2 1795 11 10 57 11 11 57 =1749+096 18 34 02 62.2 202.8 0.7 18.6 37 R 1 1396 11 11 57 J1752+1734 18 34 02 69.6 209.2 0.7 24.6 -21 1 2 1396 11 11 57 11 12 57 =1750+175 18 35 02 69.5 209.9 0.7 25.1 39 R 1 997 11 12 57 NGC6500 18 35 02 70.6 208.8 0.6 24.3 -8 1 2 997 11 12 57 11 14 57 --- 18 37 02 70.4 210.0 0.7 25.3 112 R 1 199 11 14 57 J1751+0939 18 37 02 61.9 204.3 0.8 19.8 -23 1 3 199 11 14 57 11 15 56 =1749+096 18 38 02 61.8 204.8 0.8 20.2 37 F 1 598 11 15 56 J1752+1734 18 38 02 69.2 211.7 0.8 26.6 -21 1 3 598 11 15 56 11 16 56 =1750+175 18 39 02 69.1 212.3 0.8 27.0 39 F 1 997 11 16 56 NGC6500 18 39 02 70.2 211.3 0.7 26.4 -8 1 3 997 11 16 56 11 18 56 --- 18 41 02 69.9 212.5 0.7 27.4 112 F 1 1795 11 18 56 J1751+0939 18 41 02 61.6 206.2 0.8 21.3 -23 1 3 1795 11 18 56 11 19 56 =1749+096 18 42 02 61.5 206.7 0.8 21.7 37 F 1 2194 11 19 56 J1752+1734 18 42 02 68.8 214.0 0.8 28.5 -21 1 3 2194 11 19 56 11 20 56 =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) ---------------------------------------------------------------------------------------- --- Wed 28 Apr 2004 Day 119 --- 11 20 56 NGC6500 18 43 02 69.7 213.8 0.8 28.4 -8 1 3 2593 11 20 56 11 22 55 --- 18 45 02 69.5 215.0 0.8 29.3 112 F 1 3391 11 22 55 J1751+0939 18 45 02 61.2 208.1 0.9 22.8 -23 1 3 3391 11 22 55 11 23 55 =1749+096 18 46 02 61.1 208.6 0.9 23.2 37 F 1 3790 11 23 55 J1752+1734 18 46 02 68.3 216.3 0.9 30.3 -20 1 3 3790 11 23 55 11 24 55 =1750+175 18 47 02 68.2 216.9 0.9 30.7 39 F 1 4189 11 24 55 J1759+2343 18 47 02 74.1 223.9 0.8 37.9 -18 1 3 4189 11 24 55 11 25 55 =1756+237 18 48 02 74.0 224.6 0.8 38.4 42 F 1 4587 11 25 55 J1745+1814 18 48 02 67.8 222.0 1.0 34.9 -18 1 3 4587 11 25 55 11 26 55 =1743+182 18 49 02 67.6 222.5 1.0 35.3 41 F 1 4986 11 26 55 J1745+1720 18 49 02 66.8 221.4 1.1 34.2 -8 1 3 4986 11 26 55 11 27 54 =1743+173 18 50 02 66.7 221.9 1.1 34.6 52 F 1 5385 11 27 54 J1728+1215 18 50 02 60.1 223.2 1.4 34.6 -19 1 3 5385 11 27 54 11 28 54 =1725+123 18 51 02 60.0 223.6 1.4 34.9 41 F 1 5784 11 28 54 J1751+0939 18 51 02 60.6 210.9 1.0 25.0 -14 1 3 5784 11 28 54 11 29 54 =1749+096 18 52 02 60.5 211.4 1.0 25.4 45 F 1 6183 11 29 54 J1752+1734 18 52 02 67.6 219.6 1.0 32.8 -20 1 3 6183 11 29 54 11 30 54 =1750+175 18 53 02 67.4 220.1 1.0 33.2 40 F 1 6582 11 30 54 NGC6500 18 53 02 68.5 219.5 0.9 32.9 -8 1 3 6582 11 30 54 11 32 54 --- 18 55 02 68.2 220.6 1.0 33.8 112 F 1 7380 11 32 54 J1751+0939 18 55 02 60.2 212.7 1.1 26.4 -22 1 3 7380 11 32 54 11 33 53 =1749+096 18 56 02 60.1 213.1 1.1 26.7 38 F 1 7779 11 33 53 J1752+1734 18 56 02 67.0 221.6 1.1 34.4 -20 1 3 7779 11 33 53 11 34 53 =1750+175 18 57 02 66.9 222.1 1.1 34.8 40 F 1 8178 11 34 53 NGC6500 18 57 02 68.0 221.6 1.0 34.6 -8 1 3 8178 11 34 53 11 36 53 --- 18 59 02 67.7 222.6 1.0 35.4 112 F 1 8975 11 36 53 J1751+0939 18 59 02 59.7 214.5 1.1 27.7 -22 1 3 8975 11 36 53 11 37 53 =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 28 Apr 2004 Day 119 --- 11 37 53 J1752+1734 19 00 02 66.5 223.6 1.1 35.9 -20 1 3 9374 11 37 53 11 38 53 =1750+175 19 01 02 66.4 224.1 1.1 36.3 40 F 1 9773 11 38 53 NGC6500 19 01 02 67.4 223.7 1.1 36.2 -8 1 3 9773 11 38 53 11 40 52 --- 19 03 02 67.1 224.6 1.1 36.9 112 F 1 10571 11 40 52 J1751+0939 19 03 02 59.3 216.2 1.2 29.1 -22 1 3 10571 11 40 52 11 41 52 =1749+096 19 04 02 59.1 216.6 1.2 29.4 38 F 1 10970 11 41 52 J1752+1734 19 04 02 65.9 225.5 1.2 37.4 -20 1 3 10970 11 41 52 11 42 52 =1750+175 19 05 02 65.8 226.0 1.2 37.7 40 F 1 11369 11 42 52 NGC6500 19 05 02 66.9 225.6 1.1 37.6 -8 1 3 11369 11 42 52 11 44 52 --- 19 07 02 66.6 226.6 1.2 38.4 112 F 1 12167 11 44 52 J1751+0939 19 07 02 58.8 217.8 1.3 30.3 -22 1 3 12167 11 44 52 11 45 51 =1749+096 19 08 02 58.6 218.2 1.3 30.6 38 F 1 12566 11 45 51 J1752+1734 19 08 02 65.3 227.3 1.3 38.7 -19 1 3 12566 11 45 51 11 46 51 =1750+175 19 09 02 65.2 227.8 1.3 39.1 40 F 1 12964 11 46 51 NGC6500 19 09 02 66.3 227.5 1.2 39.1 -8 1 3 12964 11 46 51 11 48 51 --- 19 11 02 66.0 228.4 1.2 39.7 112 F 1 13762 11 48 51 J1751+0939 19 11 02 58.3 219.4 1.3 31.5 -21 1 3 13762 11 48 51 11 49 51 =1749+096 19 12 02 58.1 219.8 1.3 31.8 38 F 1 14161 11 49 51 J1752+1734 19 12 02 64.7 229.1 1.3 40.0 -19 1 3 14161 11 49 51 11 50 51 =1750+175 19 13 02 64.6 229.5 1.3 40.3 41 F 1 14560 11 50 51 J1759+2343 19 13 02 70.0 238.0 1.2 48.7 -17 1 3 14560 11 50 51 11 51 50 =1756+237 19 14 02 69.8 238.4 1.2 49.0 43 F 1 14959 11 51 50 J1745+1814 19 14 02 63.8 233.7 1.5 43.5 -18 1 3 14959 11 51 50 11 52 50 =1743+182 19 15 02 63.7 234.1 1.5 43.8 42 F 1 15358 11 52 50 J1745+1720 19 15 02 63.0 232.8 1.5 42.6 -7 1 3 15358 11 52 50 11 53 50 =1743+173 19 16 02 62.8 233.2 1.5 42.9 52 F 1 15757 11 53 50 J1728+1215 19 16 02 56.2 232.7 1.8 41.3 -19 1 3 15757 11 53 50 11 54 50 =1725+123 19 17 02 56.0 233.0 1.8 41.5 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 28 Apr 2004 Day 119 --- 11 54 50 J1751+0939 19 17 02 57.5 221.8 1.4 33.3 -13 1 3 16156 11 54 50 11 55 50 =1749+096 19 18 02 57.3 222.2 1.4 33.5 46 F 1 16555 11 55 50 J1752+1734 19 18 02 63.8 231.6 1.4 41.8 -19 1 3 16555 11 55 50 11 56 50 =1750+175 19 19 02 63.6 232.0 1.4 42.1 41 F 1 16954 11 56 50 NGC6500 19 19 02 64.7 231.8 1.4 42.2 -8 1 4 16954 11 56 50 11 58 49 --- 19 21 02 64.4 232.6 1.4 42.8 112 R 1 17449 11 58 49 J1751+0939 19 21 02 56.9 223.3 1.5 34.4 -21 1 4 17449 11 58 49 11 59 49 =1749+096 19 22 02 56.8 223.7 1.5 34.6 39 R 1 17050 11 59 49 J1752+1734 19 22 02 63.2 233.1 1.5 42.9 -19 1 4 17050 11 59 49 12 00 49 =1750+175 19 23 02 63.0 233.5 1.5 43.2 41 R 1 16651 12 00 49 NGC6500 19 23 02 64.1 233.4 1.4 43.4 -8 1 4 16651 12 00 49 12 02 49 --- 19 25 02 63.8 234.2 1.5 43.9 112 R 1 15853 12 02 49 J1751+0939 19 25 02 56.4 224.8 1.6 35.4 -21 1 4 15853 12 02 49 12 03 49 =1749+096 19 26 02 56.2 225.1 1.6 35.7 39 R 1 15454 12 03 49 J1752+1734 19 26 02 62.5 234.6 1.6 44.0 -19 1 4 15454 12 03 49 12 04 48 =1750+175 19 27 02 62.3 235.0 1.6 44.2 41 R 1 15055 12 04 48 NGC6500 19 27 02 63.4 235.0 1.5 44.4 -8 1 4 15055 12 04 48 12 06 48 --- 19 29 02 63.1 235.7 1.5 44.9 112 R 1 14257 12 06 48 J1751+0939 19 29 02 55.8 226.2 1.6 36.4 -21 1 4 14257 12 06 48 12 07 48 =1749+096 19 30 02 55.6 226.6 1.6 36.7 39 R 1 13858 12 07 48 J1752+1734 19 30 02 61.8 236.1 1.6 44.9 -18 1 4 13858 12 07 48 12 08 48 =1750+175 19 31 02 61.7 236.5 1.6 45.2 41 R 1 13460 12 08 48 NGC6500 19 31 02 62.8 236.5 1.6 45.4 -8 1 4 13460 12 08 48 12 10 47 --- 19 33 02 62.4 237.2 1.6 45.9 112 R 1 12662 12 10 47 J1751+0939 19 33 02 55.2 227.6 1.7 37.4 -20 1 4 12662 12 10 47 12 11 47 =1749+096 19 34 02 55.0 227.9 1.7 37.7 39 R 1 12263 12 11 47 J1752+1734 19 34 02 61.2 237.5 1.7 45.9 -18 1 4 12263 12 11 47 12 12 47 =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 28 Apr 2004 Day 119 --- 12 12 47 NGC6500 19 35 02 62.1 237.9 1.6 46.4 -8 1 4 11864 12 12 47 12 14 47 --- 19 37 02 61.7 238.6 1.7 46.8 112 R 1 11066 12 14 47 J1751+0939 19 37 02 54.6 228.9 1.8 38.4 -20 1 4 11066 12 14 47 12 15 47 =1749+096 19 38 02 54.4 229.3 1.8 38.6 40 R 1 10667 12 15 47 J1752+1734 19 38 02 60.5 238.9 1.8 46.7 -18 1 4 10667 12 15 47 12 16 46 =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 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