COVER INFORMATION Station: VLBA_OV (Code Ov ) 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_OV (Code Ov ) 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 16 19 22 55.4 137.0 -1.5 -33.4 0 1 1 0 09 45 39 09 47 39 =1749+096 16 21 22 55.7 137.8 -1.5 -32.9 120 F 1 798 09 47 39 J1752+1734 16 21 22 61.9 128.1 -1.5 -41.1 -18 1 1 798 09 47 39 09 48 39 =1750+175 16 22 22 62.0 128.5 -1.5 -40.8 41 F 1 1197 09 48 39 NGC6500 16 22 22 62.1 126.2 -1.6 -42.6 -8 1 1 1197 09 48 39 09 50 38 --- 16 24 22 62.4 126.9 -1.5 -42.1 112 F 1 1995 09 50 38 J1751+0939 16 24 22 56.1 138.9 -1.5 -32.1 -19 1 1 1995 09 50 38 09 51 38 =1749+096 16 25 22 56.2 139.3 -1.4 -31.8 41 F 1 2393 09 51 38 J1752+1734 16 25 22 62.5 129.7 -1.5 -40.0 -19 1 1 2393 09 51 38 09 52 38 =1750+175 16 26 22 62.6 130.1 -1.4 -39.7 41 F 1 2792 09 52 38 NGC6500 16 26 22 62.7 127.7 -1.5 -41.6 -8 1 1 2792 09 52 38 09 54 38 --- 16 28 22 63.0 128.5 -1.5 -41.0 112 F 1 3590 09 54 38 J1751+0939 16 28 22 56.6 140.4 -1.4 -31.0 -19 1 1 3590 09 54 38 09 55 38 =1749+096 16 29 22 56.7 140.8 -1.4 -30.7 41 F 1 3989 09 55 38 J1752+1734 16 29 22 63.1 131.3 -1.4 -38.9 -19 1 1 3989 09 55 38 09 56 37 =1750+175 16 30 22 63.2 131.7 -1.4 -38.6 41 F 1 4388 09 56 37 NGC6500 16 30 22 63.3 129.3 -1.4 -40.5 -8 1 1 4388 09 56 37 09 58 37 --- 16 32 22 63.7 130.1 -1.4 -39.9 112 F 1 5186 09 58 37 J1751+0939 16 32 22 57.1 142.0 -1.3 -29.9 -19 1 1 5186 09 58 37 09 59 37 =1749+096 16 33 22 57.2 142.3 -1.3 -29.6 41 F 1 5585 09 59 37 J1752+1734 16 33 22 63.7 133.0 -1.3 -37.7 -19 1 1 5585 09 59 37 10 00 37 =1750+175 16 34 22 63.8 133.4 -1.3 -37.4 41 F 1 5984 10 00 37 NGC6500 16 34 22 64.0 130.9 -1.4 -39.3 -8 1 1 5984 10 00 37 10 02 36 --- 16 36 22 64.3 131.8 -1.3 -38.7 112 F 1 6781 10 02 36 J1751+0939 16 36 22 57.6 143.5 -1.3 -28.7 -19 1 1 6781 10 02 36 10 03 36 =1749+096 16 37 22 57.7 144.0 -1.2 -28.4 41 F 1 7180 Schedule for VLBA_OV (Code Ov ) 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 16 37 22 64.3 134.7 -1.3 -36.4 -19 1 1 7180 10 03 36 10 04 36 =1750+175 16 38 22 64.4 135.1 -1.2 -36.1 41 F 1 7579 10 04 36 NGC6500 16 38 22 64.5 132.6 -1.3 -38.1 -8 1 1 7579 10 04 36 10 06 36 --- 16 40 22 64.8 133.5 -1.3 -37.5 112 F 1 8377 10 06 36 J1751+0939 16 40 22 58.1 145.2 -1.2 -27.5 -20 1 1 8377 10 06 36 10 07 36 =1749+096 16 41 22 58.2 145.6 -1.2 -27.2 40 F 1 8776 10 07 36 J1752+1734 16 41 22 64.8 136.5 -1.2 -35.1 -19 1 1 8776 10 07 36 10 08 35 =1750+175 16 42 22 65.0 136.9 -1.2 -34.8 41 F 1 9175 10 08 35 NGC6500 16 42 22 65.1 134.4 -1.2 -36.8 -8 1 1 9175 10 08 35 10 10 35 --- 16 44 22 65.4 135.3 -1.2 -36.1 112 F 1 9973 10 10 35 J1751+0939 16 44 22 58.5 146.9 -1.1 -26.2 -20 1 1 9973 10 10 35 10 11 35 =1749+096 16 45 22 58.6 147.3 -1.1 -25.9 40 F 1 10372 10 11 35 J1752+1734 16 45 22 65.4 138.4 -1.1 -33.7 -19 1 1 10372 10 11 35 10 12 35 =1750+175 16 46 22 65.5 138.8 -1.1 -33.4 40 F 1 10771 10 12 35 NGC6500 16 46 22 65.7 136.3 -1.2 -35.5 -8 1 1 10771 10 12 35 10 14 34 --- 16 48 22 66.0 137.2 -1.1 -34.7 112 F 1 11568 10 14 34 J1751+0939 16 48 22 58.9 148.6 -1.1 -24.9 -20 1 1 11568 10 14 34 10 15 34 =1749+096 16 49 22 59.0 149.0 -1.0 -24.6 40 F 1 11967 10 15 34 J1752+1734 16 49 22 65.9 140.3 -1.1 -32.2 -20 1 1 11967 10 15 34 10 16 34 =1750+175 16 50 22 66.0 140.8 -1.0 -31.9 40 F 1 12366 10 16 34 J1759+2343 16 50 22 70.0 127.6 -1.1 -43.5 -15 1 1 12366 10 16 34 10 17 34 =1756+237 16 51 22 70.2 128.1 -1.1 -43.2 45 F 1 12765 10 17 34 J1745+1814 16 51 22 67.5 144.0 -0.9 -29.5 -17 1 1 12765 10 17 34 10 18 34 =1743+182 16 52 22 67.6 144.5 -0.9 -29.1 43 F 1 13164 10 18 34 J1745+1720 16 52 22 66.9 145.8 -0.9 -27.9 -7 1 1 13164 10 18 34 10 19 34 =1743+173 16 53 22 67.0 146.4 -0.9 -27.5 52 F 1 13563 10 19 34 J1728+1215 16 53 22 63.8 160.3 -0.6 -15.9 -15 1 1 13563 10 19 34 10 20 33 =1725+123 16 54 22 63.9 160.9 -0.6 -15.5 45 F 1 13962 Schedule for VLBA_OV (Code Ov ) 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 16 56 23 59.7 152.1 -0.9 -22.2 106 1 1 13962 10 22 34 10 23 34 =1749+096 16 57 23 59.8 152.6 -0.9 -21.8 60 F 1 14361 10 23 34 J1752+1734 16 57 23 66.8 144.4 -0.9 -29.1 -20 1 1 14361 10 23 34 10 24 34 =1750+175 16 58 23 67.0 144.9 -0.9 -28.7 40 F 1 14760 10 24 34 NGC6500 16 58 23 67.2 142.2 -1.0 -30.9 -8 1 1 14760 10 24 34 10 26 33 --- 17 00 23 67.5 143.3 -0.9 -30.1 112 F 1 15557 10 26 33 J1751+0939 17 00 23 60.1 153.9 -0.9 -20.8 -21 1 1 15557 10 26 33 10 27 33 =1749+096 17 01 23 60.2 154.4 -0.8 -20.4 39 F 1 15956 10 27 33 J1752+1734 17 01 23 67.3 146.5 -0.9 -27.4 -20 1 1 15956 10 27 33 10 28 33 =1750+175 17 02 23 67.4 147.1 -0.8 -27.0 40 F 1 16355 10 28 33 NGC6500 17 02 23 67.7 144.4 -0.9 -29.2 -8 1 1 16355 10 28 33 10 30 33 --- 17 04 23 68.0 145.5 -0.9 -28.4 112 F 1 17153 10 30 33 J1751+0939 17 04 23 60.4 155.8 -0.8 -19.3 -21 1 2 17153 10 30 33 10 31 33 =1749+096 17 05 23 60.5 156.3 -0.8 -19.0 39 R 1 16754 10 31 33 J1752+1734 17 05 23 67.7 148.8 -0.8 -25.7 -20 1 2 16754 10 31 33 10 32 32 =1750+175 17 06 23 67.8 149.3 -0.8 -25.2 39 R 1 16355 10 32 32 NGC6500 17 06 23 68.2 146.6 -0.8 -27.5 -8 1 2 16355 10 32 32 10 34 32 --- 17 08 23 68.4 147.7 -0.8 -26.6 112 R 1 15557 10 34 32 J1751+0939 17 08 23 60.7 157.7 -0.7 -17.8 -21 1 2 15557 10 34 32 10 35 32 =1749+096 17 09 23 60.8 158.2 -0.7 -17.5 39 R 1 15159 10 35 32 J1752+1734 17 09 23 68.1 151.1 -0.7 -23.8 -21 1 2 15159 10 35 32 10 36 32 =1750+175 17 10 23 68.2 151.7 -0.7 -23.4 39 R 1 14760 10 36 32 NGC6500 17 10 23 68.6 148.9 -0.8 -25.7 -8 1 2 14760 10 36 32 10 38 32 --- 17 12 23 68.8 150.1 -0.7 -24.7 112 R 1 13962 10 38 32 J1751+0939 17 12 23 61.0 159.6 -0.7 -16.3 -22 1 2 13962 10 38 32 10 39 31 =1749+096 17 13 23 61.1 160.1 -0.6 -15.9 38 R 1 13563 10 39 31 J1752+1734 17 13 23 68.5 153.5 -0.7 -21.9 -21 1 2 13563 10 39 31 10 40 31 =1750+175 17 14 23 68.6 154.1 -0.6 -21.4 39 R 1 13164 Schedule for VLBA_OV (Code Ov ) 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 17 14 23 69.0 151.3 -0.7 -23.8 -8 1 2 13164 10 40 31 10 42 31 --- 17 16 23 69.2 152.5 -0.7 -22.8 112 R 1 12366 10 42 31 J1751+0939 17 16 23 61.3 161.6 -0.6 -14.8 -22 1 2 12366 10 42 31 10 43 31 =1749+096 17 17 23 61.3 162.1 -0.6 -14.4 38 R 1 11967 10 43 31 J1752+1734 17 17 23 68.8 155.9 -0.6 -19.9 -21 1 2 11967 10 43 31 10 44 31 =1750+175 17 18 23 68.9 156.5 -0.6 -19.4 39 R 1 11568 10 44 31 J1759+2343 17 18 23 73.9 144.2 -0.7 -30.6 -16 1 2 11568 10 44 31 10 45 30 =1756+237 17 19 23 74.0 144.9 -0.7 -30.0 44 R 1 11169 10 45 30 J1745+1814 17 19 23 70.1 161.0 -0.4 -15.8 -17 1 2 11169 10 45 30 10 46 30 =1743+182 17 20 23 70.2 161.7 -0.4 -15.3 43 R 1 10771 10 46 30 J1745+1720 17 20 23 69.3 162.6 -0.4 -14.4 -8 1 2 10771 10 46 30 10 47 30 =1743+173 17 21 23 69.4 163.3 -0.4 -13.9 52 R 1 10372 10 47 30 J1728+1215 17 21 23 65.0 176.0 -0.1 -3.3 -15 1 2 10372 10 47 30 10 48 30 =1725+123 17 22 23 65.0 176.6 -0.1 -2.8 45 R 1 9973 10 50 31 J1642+3948 17 24 24 81.5 290.8 0.7 104.4 39 1 2 9973 10 50 31 10 53 30 =1641+399 17 27 24 81.0 289.9 0.7 103.0 180 R 1 8776 10 53 30 J1751+0939 17 27 24 61.9 167.2 -0.4 -10.3 -88 1 2 8776 10 53 30 10 56 00 =1749+096 17 29 54 62.0 168.5 -0.4 -9.3 62 R 1 7779 10 56 00 J1752+1734 17 29 54 69.7 164.0 -0.4 -13.3 -21 1 2 7779 10 56 00 10 56 59 =1750+175 17 30 54 69.7 164.7 -0.4 -12.8 38 R 1 7380 10 56 59 NGC6500 17 30 54 70.3 161.9 -0.4 -15.1 -8 1 2 7380 10 56 59 10 58 59 --- 17 32 54 70.4 163.3 -0.4 -13.9 112 R 1 6582 10 58 59 J1751+0939 17 32 54 62.1 170.0 -0.3 -8.0 -23 1 2 6582 10 58 59 10 59 59 =1749+096 17 33 54 62.1 170.6 -0.3 -7.6 37 R 1 6183 10 59 59 J1752+1734 17 33 54 69.9 166.7 -0.3 -11.1 -22 1 2 6183 10 59 59 11 00 59 =1750+175 17 34 54 69.9 167.4 -0.3 -10.5 38 R 1 5784 11 00 59 NGC6500 17 34 54 70.5 164.7 -0.4 -12.8 -8 1 2 5784 11 00 59 11 02 58 --- 17 36 54 70.6 166.1 -0.3 -11.6 112 R 1 4986 Schedule for VLBA_OV (Code Ov ) 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 17 36 54 62.2 172.1 -0.2 -6.3 -23 1 2 4986 11 02 58 11 03 58 =1749+096 17 37 54 62.2 172.7 -0.2 -5.9 37 R 1 4587 11 03 58 J1752+1734 17 37 54 70.1 169.4 -0.3 -8.8 -22 1 2 4587 11 03 58 11 04 58 =1750+175 17 38 54 70.1 170.1 -0.2 -8.2 38 R 1 4189 11 04 58 NGC6500 17 38 54 70.7 167.5 -0.3 -10.5 -8 1 2 4189 11 04 58 11 06 58 --- 17 40 54 70.8 168.9 -0.3 -9.3 112 R 1 3391 11 06 58 J1751+0939 17 40 54 62.3 174.2 -0.2 -4.7 -23 1 2 3391 11 06 58 11 07 58 =1749+096 17 41 54 62.3 174.8 -0.2 -4.2 37 R 1 2992 11 07 58 J1752+1734 17 41 54 70.2 172.2 -0.2 -6.5 -22 1 2 2992 11 07 58 11 08 58 =1750+175 17 42 54 70.2 172.9 -0.2 -5.9 38 R 1 2593 11 08 58 NGC6500 17 42 54 70.9 170.3 -0.2 -8.1 -8 1 2 2593 11 08 58 11 10 57 --- 17 44 54 70.9 171.8 -0.2 -6.9 112 R 1 1795 11 10 57 J1751+0939 17 44 54 62.4 176.4 -0.1 -2.9 -23 1 2 1795 11 10 57 11 11 57 =1749+096 17 45 54 62.4 176.9 -0.1 -2.5 37 R 1 1396 11 11 57 J1752+1734 17 45 54 70.3 175.0 -0.1 -4.2 -22 1 2 1396 11 11 57 11 12 57 =1750+175 17 46 54 70.3 175.7 -0.1 -3.6 38 R 1 997 11 12 57 NGC6500 17 46 54 71.0 173.2 -0.2 -5.7 -8 1 2 997 11 12 57 11 14 57 --- 17 48 54 71.0 174.7 -0.1 -4.5 112 R 1 199 11 14 57 J1751+0939 17 48 54 62.4 178.5 0.0 -1.2 -23 1 3 199 11 14 57 11 15 56 =1749+096 17 49 54 62.4 179.0 0.0 -0.8 37 F 1 598 11 15 56 J1752+1734 17 49 54 70.3 177.8 -0.1 -1.8 -22 1 3 598 11 15 56 11 16 56 =1750+175 17 50 54 70.3 178.5 0.0 -1.2 38 F 1 997 11 16 56 NGC6500 17 50 54 71.1 176.1 -0.1 -3.2 -8 1 3 997 11 16 56 11 18 56 --- 17 52 54 71.1 177.6 -0.1 -2.0 112 F 1 1795 11 18 56 J1751+0939 17 52 54 62.4 180.6 0.0 0.5 -23 1 3 1795 11 18 56 11 19 56 =1749+096 17 53 54 62.4 181.1 0.0 0.9 36 F 1 2194 11 19 56 J1752+1734 17 53 54 70.3 180.7 0.0 0.6 -22 1 3 2194 11 19 56 11 20 56 =1750+175 17 54 54 70.3 181.4 0.0 1.1 38 F 1 2593 Schedule for VLBA_OV (Code Ov ) 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 17 54 54 71.1 179.1 0.0 -0.8 -8 1 3 2593 11 20 56 11 22 55 --- 17 56 54 71.1 180.5 0.0 0.4 112 F 1 3391 11 22 55 J1751+0939 17 56 54 62.4 182.7 0.1 2.2 -23 1 3 3391 11 22 55 11 23 55 =1749+096 17 57 54 62.4 183.3 0.1 2.6 36 F 1 3790 11 23 55 J1752+1734 17 57 54 70.3 183.5 0.1 2.9 -22 1 3 3790 11 23 55 11 24 55 =1750+175 17 58 54 70.3 184.2 0.1 3.5 38 F 1 4189 11 24 55 J1759+2343 17 58 54 76.5 179.7 0.0 -0.2 -18 1 3 4189 11 24 55 11 25 55 =1756+237 17 59 54 76.5 180.7 0.0 0.6 41 F 1 4587 11 25 55 J1745+1814 17 59 54 70.8 190.0 0.2 8.3 -17 1 3 4587 11 25 55 11 26 55 =1743+182 18 00 54 70.7 190.7 0.2 8.9 42 F 1 4986 11 26 55 J1745+1720 18 00 54 69.8 190.5 0.3 8.8 -8 1 3 4986 11 26 55 11 27 54 =1743+173 18 01 54 69.8 191.2 0.3 9.3 52 F 1 5385 11 27 54 J1728+1215 18 01 54 63.9 198.9 0.6 15.3 -18 1 3 5385 11 27 54 11 28 54 =1725+123 18 02 54 63.8 199.5 0.6 15.8 42 F 1 5784 11 28 54 J1751+0939 18 02 54 62.3 185.9 0.2 4.8 -15 1 3 5784 11 28 54 11 29 54 =1749+096 18 03 54 62.3 186.4 0.2 5.2 45 F 1 6183 11 29 54 J1752+1734 18 03 54 70.2 187.7 0.2 6.4 -22 1 3 6183 11 29 54 11 30 54 =1750+175 18 04 54 70.2 188.4 0.2 7.0 38 F 1 6582 11 30 54 NGC6500 18 04 54 71.0 186.4 0.1 5.3 -8 1 3 6582 11 30 54 11 32 54 --- 18 06 54 71.0 187.8 0.2 6.5 112 F 1 7380 11 32 54 J1751+0939 18 06 54 62.2 188.0 0.3 6.5 -24 1 3 7380 11 32 54 11 33 53 =1749+096 18 07 54 62.2 188.5 0.3 6.9 36 F 1 7779 11 33 53 J1752+1734 18 07 54 70.1 190.5 0.2 8.7 -22 1 3 7779 11 33 53 11 34 53 =1750+175 18 08 54 70.0 191.2 0.3 9.3 38 F 1 8178 11 34 53 NGC6500 18 08 54 70.9 189.3 0.2 7.8 -8 1 3 8178 11 34 53 11 36 53 --- 18 10 54 70.8 190.7 0.2 8.9 112 F 1 8975 11 36 53 J1751+0939 18 10 54 62.1 190.1 0.3 8.2 -24 1 3 8975 11 36 53 11 37 53 =1749+096 18 11 54 62.0 190.6 0.3 8.6 36 F 1 9374 Schedule for VLBA_OV (Code Ov ) 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 18 11 54 69.9 193.2 0.3 11.0 -22 1 3 9374 11 37 53 11 38 53 =1750+175 18 12 54 69.9 193.9 0.3 11.6 38 F 1 9773 11 38 53 NGC6500 18 12 54 70.7 192.1 0.3 10.1 -8 1 3 9773 11 38 53 11 40 52 --- 18 14 54 70.7 193.5 0.3 11.3 112 F 1 10571 11 40 52 J1751+0939 18 14 54 61.9 192.2 0.4 9.8 -23 1 3 10571 11 40 52 11 41 52 =1749+096 18 15 54 61.9 192.7 0.4 10.2 36 F 1 10970 11 41 52 J1752+1734 18 15 54 69.7 195.9 0.4 13.3 -22 1 3 10970 11 41 52 11 42 52 =1750+175 18 16 54 69.6 196.6 0.4 13.8 38 F 1 11369 11 42 52 NGC6500 18 16 54 70.6 194.9 0.3 12.5 -8 1 3 11369 11 42 52 11 44 52 --- 18 18 54 70.5 196.3 0.4 13.6 112 F 1 12167 11 44 52 J1751+0939 18 18 54 61.7 194.2 0.5 11.5 -23 1 3 12167 11 44 52 11 45 51 =1749+096 18 19 54 61.7 194.8 0.5 11.9 36 F 1 12566 11 45 51 J1752+1734 18 19 54 69.5 198.6 0.4 15.4 -22 1 3 12566 11 45 51 11 46 51 =1750+175 18 20 54 69.4 199.2 0.5 16.0 38 F 1 12964 11 46 51 NGC6500 18 20 54 70.3 197.7 0.4 14.8 -8 1 3 12964 11 46 51 11 48 51 --- 18 22 54 70.2 199.0 0.4 15.9 112 F 1 13762 11 48 51 J1751+0939 18 22 54 61.5 196.3 0.5 13.1 -23 1 3 13762 11 48 51 11 49 51 =1749+096 18 23 54 61.5 196.8 0.5 13.5 36 F 1 14161 11 49 51 J1752+1734 18 23 54 69.2 201.2 0.5 17.6 -21 1 3 14161 11 49 51 11 50 51 =1750+175 18 24 54 69.1 201.8 0.5 18.1 38 F 1 14560 11 50 51 J1759+2343 18 24 54 75.4 204.0 0.4 20.7 -19 1 3 14560 11 50 51 11 51 50 =1756+237 18 25 54 75.3 204.9 0.4 21.4 41 F 1 14959 11 51 50 J1745+1814 18 25 54 69.1 207.4 0.7 22.7 -18 1 3 14959 11 51 50 11 52 50 =1743+182 18 26 54 69.0 208.0 0.7 23.2 41 F 1 15358 11 52 50 J1745+1720 18 26 54 68.1 207.2 0.7 22.4 -8 1 3 15358 11 52 50 11 53 50 =1743+173 18 27 54 68.0 207.8 0.7 22.9 52 F 1 15757 11 53 50 J1728+1215 18 27 54 61.7 212.0 1.0 25.6 -19 1 3 15757 11 53 50 11 54 50 =1725+123 18 28 54 61.6 212.4 1.0 25.9 41 F 1 16156 Schedule for VLBA_OV (Code Ov ) 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 18 28 54 61.2 199.3 0.6 15.5 -15 1 3 16156 11 54 50 11 55 50 =1749+096 18 29 54 61.1 199.8 0.6 15.8 45 F 1 16555 11 55 50 J1752+1734 18 29 54 68.7 204.9 0.6 20.6 -21 1 3 16555 11 55 50 11 56 50 =1750+175 18 30 54 68.6 205.6 0.6 21.1 39 F 1 16954 11 56 50 NGC6500 18 30 54 69.6 204.3 0.6 20.2 -8 1 4 16954 11 56 50 11 58 49 --- 18 32 54 69.5 205.6 0.6 21.2 112 R 1 17449 11 58 49 J1751+0939 18 32 54 60.9 201.2 0.7 17.0 -23 1 4 17449 11 58 49 11 59 49 =1749+096 18 33 54 60.8 201.7 0.7 17.4 37 R 1 17050 11 59 49 J1752+1734 18 33 54 68.4 207.4 0.7 22.6 -21 1 4 17050 11 59 49 12 00 49 =1750+175 18 34 54 68.3 208.0 0.7 23.0 39 R 1 16651 12 00 49 NGC6500 18 34 54 69.3 206.8 0.6 22.2 -8 1 4 16651 12 00 49 12 02 49 --- 18 36 54 69.1 208.0 0.7 23.2 112 R 1 15853 12 02 49 J1751+0939 18 36 54 60.6 203.1 0.8 18.5 -23 1 4 15853 12 02 49 12 03 49 =1749+096 18 37 54 60.5 203.6 0.8 18.9 37 R 1 15454 12 03 49 J1752+1734 18 37 54 68.0 209.7 0.7 24.5 -21 1 4 15454 12 03 49 12 04 48 =1750+175 18 38 54 67.9 210.3 0.8 24.9 39 R 1 15055 12 04 48 NGC6500 18 38 54 68.9 209.3 0.7 24.2 -8 1 4 15055 12 04 48 12 06 48 --- 18 40 54 68.7 210.5 0.7 25.2 112 R 1 14257 12 06 48 J1751+0939 18 40 54 60.3 205.0 0.8 20.0 -23 1 4 14257 12 06 48 12 07 48 =1749+096 18 41 54 60.2 205.5 0.8 20.3 37 R 1 13858 12 07 48 J1752+1734 18 41 54 67.6 212.0 0.8 26.3 -21 1 4 13858 12 07 48 12 08 48 =1750+175 18 42 54 67.5 212.6 0.8 26.7 39 R 1 13460 12 08 48 NGC6500 18 42 54 68.5 211.6 0.8 26.1 -8 1 4 13460 12 08 48 12 10 47 --- 18 44 54 68.3 212.8 0.8 27.0 112 R 1 12662 12 10 47 J1751+0939 18 44 54 59.9 206.9 0.9 21.4 -23 1 4 12662 12 10 47 12 11 47 =1749+096 18 45 54 59.8 207.3 0.9 21.8 37 R 1 12263 12 11 47 J1752+1734 18 45 54 67.1 214.2 0.9 28.0 -21 1 4 12263 12 11 47 12 12 47 =1750+175 18 46 54 67.0 214.7 0.9 28.4 39 R 1 11864 Schedule for VLBA_OV (Code Ov ) 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 18 46 54 68.1 213.9 0.8 27.9 -8 1 4 11864 12 12 47 12 14 47 --- 18 48 54 67.8 215.0 0.9 28.8 112 R 1 11066 12 14 47 J1751+0939 18 48 54 59.5 208.7 1.0 22.8 -23 1 4 11066 12 14 47 12 15 47 =1749+096 18 49 54 59.4 209.1 1.0 23.2 37 R 1 10667 12 15 47 J1752+1734 18 49 54 66.7 216.3 0.9 29.7 -20 1 4 10667 12 15 47 12 16 46 =1750+175 18 50 54 66.6 216.8 1.0 30.1 39 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