COVER INFORMATION Station: VLBA_BR (Code Br ) 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_BR (Code Br ) 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 13 45 46.3 143.7 -1.6 -23.6 0 1 1 0 09 45 39 09 47 39 =1749+096 16 15 45 46.5 144.3 -1.6 -23.2 120 F 1 798 09 47 39 J1752+1734 16 15 45 53.6 138.6 -1.6 -27.6 -20 1 1 798 09 47 39 09 48 39 =1750+175 16 16 45 53.7 139.0 -1.6 -27.3 40 F 1 1197 09 48 39 NGC6500 16 16 45 54.0 137.2 -1.7 -28.5 -7 1 1 1197 09 48 39 09 50 38 --- 16 18 45 54.2 137.9 -1.6 -28.1 113 F 1 1995 09 50 38 J1751+0939 16 18 45 46.8 145.3 -1.6 -22.7 -21 1 1 1995 09 50 38 09 51 38 =1749+096 16 19 45 46.9 145.7 -1.5 -22.5 39 F 1 2393 09 51 38 J1752+1734 16 19 45 54.0 140.1 -1.6 -26.7 -20 1 1 2393 09 51 38 09 52 38 =1750+175 16 20 45 54.1 140.4 -1.5 -26.5 40 F 1 2792 09 52 38 NGC6500 16 20 45 54.5 138.7 -1.6 -27.7 -7 1 1 2792 09 52 38 09 54 38 --- 16 22 45 54.7 139.4 -1.6 -27.2 113 F 1 3590 09 54 38 J1751+0939 16 22 45 47.2 146.7 -1.5 -21.8 -21 1 1 3590 09 54 38 09 55 38 =1749+096 16 23 45 47.3 147.0 -1.5 -21.6 39 F 1 3989 09 55 38 J1752+1734 16 23 45 54.4 141.5 -1.5 -25.8 -20 1 1 3989 09 55 38 09 56 37 =1750+175 16 24 45 54.5 141.9 -1.5 -25.6 40 F 1 4388 09 56 37 NGC6500 16 24 45 54.9 140.1 -1.5 -26.8 -7 1 1 4388 09 56 37 09 58 37 --- 16 26 45 55.1 140.9 -1.5 -26.3 113 F 1 5186 09 58 37 J1751+0939 16 26 45 47.6 148.0 -1.4 -21.0 -21 1 1 5186 09 58 37 09 59 37 =1749+096 16 27 45 47.6 148.4 -1.4 -20.8 39 F 1 5585 09 59 37 J1752+1734 16 27 45 54.8 143.0 -1.4 -24.9 -20 1 1 5585 09 59 37 10 00 37 =1750+175 16 28 45 54.9 143.4 -1.4 -24.7 39 F 1 5984 10 00 37 NGC6500 16 28 45 55.3 141.6 -1.5 -25.9 -7 1 1 5984 10 00 37 10 02 36 --- 16 30 45 55.5 142.4 -1.4 -25.4 113 F 1 6781 10 02 36 J1751+0939 16 30 45 47.9 149.4 -1.4 -20.2 -21 1 1 6781 10 02 36 10 03 36 =1749+096 16 31 45 48.0 149.7 -1.3 -19.9 39 F 1 7180 Schedule for VLBA_BR (Code Br ) 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 31 45 55.2 144.5 -1.4 -24.0 -20 1 1 7180 10 03 36 10 04 36 =1750+175 16 32 45 55.3 144.9 -1.3 -23.7 39 F 1 7579 10 04 36 NGC6500 16 32 45 55.7 143.1 -1.4 -25.0 -7 1 1 7579 10 04 36 10 06 36 --- 16 34 45 55.9 143.9 -1.4 -24.5 113 F 1 8377 10 06 36 J1751+0939 16 34 45 48.2 150.8 -1.3 -19.3 -21 1 1 8377 10 06 36 10 07 36 =1749+096 16 35 45 48.3 151.1 -1.3 -19.1 38 F 1 8776 10 07 36 J1752+1734 16 35 45 55.6 146.1 -1.3 -23.0 -21 1 1 8776 10 07 36 10 08 35 =1750+175 16 36 45 55.7 146.5 -1.3 -22.8 39 F 1 9175 10 08 35 NGC6500 16 36 45 56.1 144.7 -1.3 -24.0 -7 1 1 9175 10 08 35 10 10 35 --- 16 38 45 56.3 145.4 -1.3 -23.5 113 F 1 9973 10 10 35 J1751+0939 16 38 45 48.6 152.2 -1.2 -18.4 -21 1 1 9973 10 10 35 10 11 35 =1749+096 16 39 45 48.6 152.5 -1.2 -18.2 38 F 1 10372 10 11 35 J1752+1734 16 39 45 56.0 147.6 -1.2 -22.0 -21 1 1 10372 10 11 35 10 12 35 =1750+175 16 40 45 56.1 148.0 -1.2 -21.8 39 F 1 10771 10 12 35 NGC6500 16 40 45 56.5 146.2 -1.3 -23.0 -7 1 1 10771 10 12 35 10 14 34 --- 16 42 45 56.7 147.0 -1.2 -22.5 113 F 1 11568 10 14 34 J1751+0939 16 42 45 48.9 153.6 -1.2 -17.5 -22 1 1 11568 10 14 34 10 15 34 =1749+096 16 43 45 48.9 154.0 -1.1 -17.3 38 F 1 11967 10 15 34 J1752+1734 16 43 45 56.3 149.2 -1.2 -21.0 -21 1 1 11967 10 15 34 10 16 34 =1750+175 16 44 45 56.4 149.6 -1.1 -20.7 39 F 1 12366 10 16 34 J1759+2343 16 44 45 61.5 142.3 -1.2 -26.5 -16 1 1 12366 10 16 34 10 17 34 =1756+237 16 45 45 61.6 142.7 -1.2 -26.2 44 F 1 12765 10 17 34 J1745+1814 16 45 45 57.7 152.4 -1.0 -19.0 -14 1 1 12765 10 17 34 10 18 34 =1743+182 16 46 45 57.8 152.9 -1.0 -18.7 46 F 1 13164 10 18 34 J1745+1720 16 46 45 56.9 153.5 -1.0 -18.2 -8 1 1 13164 10 18 34 10 19 34 =1743+173 16 47 45 57.0 154.0 -1.0 -17.9 52 F 1 13563 10 19 34 J1728+1215 16 47 45 53.1 163.3 -0.7 -11.3 -14 1 1 13563 10 19 34 10 20 33 =1725+123 16 48 45 53.2 163.7 -0.7 -11.0 46 F 1 13962 Schedule for VLBA_BR (Code Br ) 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 50 46 49.4 156.5 -1.0 -15.7 107 1 1 13962 10 22 34 10 23 34 =1749+096 16 51 46 49.5 156.9 -1.0 -15.4 60 F 1 14361 10 23 34 J1752+1734 16 51 46 57.0 152.5 -1.0 -18.9 -21 1 1 14361 10 23 34 10 24 34 =1750+175 16 52 46 57.1 152.9 -1.0 -18.6 39 F 1 14760 10 24 34 NGC6500 16 52 46 57.5 151.1 -1.1 -19.9 -7 1 1 14760 10 24 34 10 26 33 --- 16 54 46 57.7 151.9 -1.0 -19.3 113 F 1 15557 10 26 33 J1751+0939 16 54 46 49.7 158.0 -0.9 -14.7 -22 1 1 15557 10 26 33 10 27 33 =1749+096 16 55 46 49.7 158.3 -0.9 -14.5 38 F 1 15956 10 27 33 J1752+1734 16 55 46 57.3 154.2 -1.0 -17.8 -21 1 1 15956 10 27 33 10 28 33 =1750+175 16 56 46 57.4 154.6 -0.9 -17.5 39 F 1 16355 10 28 33 NGC6500 16 56 46 57.8 152.8 -1.0 -18.8 -7 1 1 16355 10 28 33 10 30 33 --- 16 58 46 58.0 153.6 -1.0 -18.2 113 F 1 17153 10 30 33 J1751+0939 16 58 46 49.9 159.5 -0.9 -13.7 -22 1 2 17153 10 30 33 10 31 33 =1749+096 16 59 46 50.0 159.8 -0.9 -13.5 38 R 1 16754 10 31 33 J1752+1734 16 59 46 57.6 155.9 -0.9 -16.6 -21 1 2 16754 10 31 33 10 32 32 =1750+175 17 00 46 57.6 156.3 -0.9 -16.4 39 R 1 16355 10 32 32 NGC6500 17 00 46 58.1 154.5 -0.9 -17.6 -7 1 2 16355 10 32 32 10 34 32 --- 17 02 46 58.3 155.3 -0.9 -17.1 113 R 1 15557 10 34 32 J1751+0939 17 02 46 50.2 160.9 -0.8 -12.8 -22 1 2 15557 10 34 32 10 35 32 =1749+096 17 03 46 50.2 161.3 -0.8 -12.5 38 R 1 15159 10 35 32 J1752+1734 17 03 46 57.8 157.6 -0.8 -15.5 -21 1 2 15159 10 35 32 10 36 32 =1750+175 17 04 46 57.9 158.0 -0.8 -15.2 39 R 1 14760 10 36 32 NGC6500 17 04 46 58.4 156.2 -0.9 -16.5 -7 1 2 14760 10 36 32 10 38 32 --- 17 06 46 58.6 157.1 -0.8 -15.9 113 R 1 13962 10 38 32 J1751+0939 17 06 46 50.4 162.5 -0.7 -11.8 -22 1 2 13962 10 38 32 10 39 31 =1749+096 17 07 46 50.4 162.8 -0.7 -11.5 37 R 1 13563 10 39 31 J1752+1734 17 07 46 58.1 159.3 -0.8 -14.3 -21 1 2 13563 10 39 31 10 40 31 =1750+175 17 08 46 58.1 159.8 -0.7 -14.0 39 R 1 13164 Schedule for VLBA_BR (Code Br ) 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 08 46 58.7 158.0 -0.8 -15.3 -7 1 2 13164 10 40 31 10 42 31 --- 17 10 46 58.8 158.8 -0.8 -14.7 113 R 1 12366 10 42 31 J1751+0939 17 10 46 50.6 164.0 -0.7 -10.8 -22 1 2 12366 10 42 31 10 43 31 =1749+096 17 11 46 50.6 164.4 -0.7 -10.5 37 R 1 11967 10 43 31 J1752+1734 17 11 46 58.3 161.1 -0.7 -13.1 -21 1 2 11967 10 43 31 10 44 31 =1750+175 17 12 46 58.4 161.5 -0.7 -12.8 38 R 1 11568 10 44 31 J1759+2343 17 12 46 63.9 155.2 -0.8 -17.8 -17 1 2 11568 10 44 31 10 45 30 =1756+237 17 13 46 64.0 155.7 -0.8 -17.4 43 R 1 11169 10 45 30 J1745+1814 17 13 46 59.4 164.8 -0.5 -10.6 -15 1 2 11169 10 45 30 10 46 30 =1743+182 17 14 46 59.4 165.2 -0.5 -10.3 45 R 1 10771 10 46 30 J1745+1720 17 14 46 58.6 165.7 -0.5 -9.9 -8 1 2 10771 10 46 30 10 47 30 =1743+173 17 15 46 58.6 166.2 -0.5 -9.6 52 R 1 10372 10 47 30 J1728+1215 17 15 46 54.0 174.8 -0.2 -3.6 -15 1 2 10372 10 47 30 10 48 30 =1725+123 17 16 46 54.0 175.2 -0.2 -3.3 45 R 1 9973 10 50 31 J1642+3948 17 18 47 79.5 220.8 0.6 34.6 64 1 2 9973 10 50 31 10 53 30 =1641+399 17 21 47 79.2 223.3 0.6 36.6 180 R 1 8776 10 53 30 J1751+0939 17 21 47 51.0 168.2 -0.5 -8.0 -62 1 2 8776 10 53 30 10 56 00 =1749+096 17 24 17 51.1 169.2 -0.5 -7.3 87 R 1 7779 10 56 00 J1752+1734 17 24 17 58.9 166.7 -0.5 -9.3 -22 1 2 7779 10 56 00 10 56 59 =1750+175 17 25 17 58.9 167.1 -0.5 -9.0 38 R 1 7380 10 56 59 NGC6500 17 25 17 59.5 165.4 -0.5 -10.2 -7 1 2 7380 10 56 59 10 58 59 --- 17 27 17 59.6 166.3 -0.5 -9.6 113 R 1 6582 10 58 59 J1751+0939 17 27 17 51.2 170.4 -0.4 -6.5 -23 1 2 6582 10 58 59 10 59 59 =1749+096 17 28 17 51.2 170.7 -0.4 -6.3 37 R 1 6183 10 59 59 J1752+1734 17 28 17 59.0 168.5 -0.4 -8.0 -22 1 2 6183 10 59 59 11 00 59 =1750+175 17 29 17 59.1 169.0 -0.4 -7.7 38 R 1 5784 11 00 59 NGC6500 17 29 17 59.7 167.3 -0.4 -8.9 -7 1 2 5784 11 00 59 11 02 58 --- 17 31 17 59.8 168.2 -0.4 -8.3 112 R 1 4986 Schedule for VLBA_BR (Code Br ) 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 31 17 51.3 171.9 -0.3 -5.5 -23 1 2 4986 11 02 58 11 03 58 =1749+096 17 32 17 51.3 172.3 -0.3 -5.2 37 R 1 4587 11 03 58 J1752+1734 17 32 17 59.1 170.4 -0.3 -6.7 -22 1 2 4587 11 03 58 11 04 58 =1750+175 17 33 17 59.2 170.8 -0.3 -6.4 38 R 1 4189 11 04 58 NGC6500 17 33 17 59.8 169.1 -0.4 -7.6 -7 1 2 4189 11 04 58 11 06 58 --- 17 35 17 59.9 170.1 -0.3 -7.0 112 R 1 3391 11 06 58 J1751+0939 17 35 17 51.4 173.5 -0.3 -4.4 -23 1 2 3391 11 06 58 11 07 58 =1749+096 17 36 17 51.4 173.9 -0.3 -4.1 37 R 1 2992 11 07 58 J1752+1734 17 36 17 59.2 172.2 -0.3 -5.4 -22 1 2 2992 11 07 58 11 08 58 =1750+175 17 37 17 59.3 172.7 -0.3 -5.1 38 R 1 2593 11 08 58 NGC6500 17 37 17 60.0 171.0 -0.3 -6.3 -7 1 2 2593 11 08 58 11 10 57 --- 17 39 17 60.0 172.0 -0.3 -5.6 112 R 1 1795 11 10 57 J1751+0939 17 39 17 51.4 175.1 -0.2 -3.3 -23 1 2 1795 11 10 57 11 11 57 =1749+096 17 40 17 51.4 175.5 -0.2 -3.1 37 R 1 1396 11 11 57 J1752+1734 17 40 17 59.3 174.1 -0.2 -4.2 -22 1 2 1396 11 11 57 11 12 57 =1750+175 17 41 17 59.3 174.5 -0.2 -3.8 38 R 1 997 11 12 57 NGC6500 17 41 17 60.0 172.9 -0.2 -5.0 -7 1 2 997 11 12 57 11 14 57 --- 17 43 17 60.1 173.8 -0.2 -4.3 112 R 1 199 11 14 57 J1751+0939 17 43 17 51.5 176.6 -0.1 -2.3 -23 1 3 199 11 14 57 11 15 56 =1749+096 17 44 17 51.5 177.0 -0.1 -2.0 37 F 1 598 11 15 56 J1752+1734 17 44 17 59.4 175.9 -0.1 -2.8 -22 1 3 598 11 15 56 11 16 56 =1750+175 17 45 17 59.4 176.4 -0.1 -2.5 38 F 1 997 11 16 56 NGC6500 17 45 17 60.1 174.8 -0.2 -3.7 -7 1 3 997 11 16 56 11 18 56 --- 17 47 17 60.1 175.7 -0.1 -3.0 112 F 1 1795 11 18 56 J1751+0939 17 47 17 51.5 178.2 -0.1 -1.2 -23 1 3 1795 11 18 56 11 19 56 =1749+096 17 48 17 51.5 178.6 -0.1 -0.9 37 F 1 2194 11 19 56 J1752+1734 17 48 17 59.4 177.8 -0.1 -1.5 -22 1 3 2194 11 19 56 11 20 56 =1750+175 17 49 17 59.4 178.3 -0.1 -1.2 38 F 1 2593 Schedule for VLBA_BR (Code Br ) 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 49 17 60.2 176.7 -0.1 -2.3 -7 1 3 2593 11 20 56 11 22 55 --- 17 51 17 60.2 177.7 -0.1 -1.6 112 F 1 3391 11 22 55 J1751+0939 17 51 17 51.5 179.8 0.0 -0.1 -23 1 3 3391 11 22 55 11 23 55 =1749+096 17 52 17 51.5 180.2 0.0 0.1 36 F 1 3790 11 23 55 J1752+1734 17 52 17 59.4 179.7 0.0 -0.2 -22 1 3 3790 11 23 55 11 24 55 =1750+175 17 53 17 59.4 180.1 0.0 0.1 38 F 1 4189 11 24 55 J1759+2343 17 53 17 65.6 176.7 -0.1 -2.4 -18 1 3 4189 11 24 55 11 25 55 =1756+237 17 54 17 65.6 177.3 -0.1 -2.0 42 F 1 4587 11 25 55 J1745+1814 17 54 17 60.1 183.9 0.1 2.7 -17 1 3 4587 11 25 55 11 26 55 =1743+182 17 55 17 60.1 184.4 0.2 3.1 43 F 1 4986 11 26 55 J1745+1720 17 55 17 59.1 184.4 0.2 3.1 -8 1 3 4986 11 26 55 11 27 54 =1743+173 17 56 17 59.1 184.9 0.2 3.4 52 F 1 5385 11 27 54 J1728+1215 17 56 17 53.7 191.6 0.5 7.9 -17 1 3 5385 11 27 54 11 28 54 =1725+123 17 57 17 53.6 192.0 0.5 8.2 43 F 1 5784 11 28 54 J1751+0939 17 57 17 51.5 182.2 0.1 1.5 -13 1 3 5784 11 28 54 11 29 54 =1749+096 17 58 17 51.5 182.6 0.1 1.7 47 F 1 6183 11 29 54 J1752+1734 17 58 17 59.4 182.5 0.1 1.7 -22 1 3 6183 11 29 54 11 30 54 =1750+175 17 59 17 59.4 183.0 0.1 2.1 38 F 1 6582 11 30 54 NGC6500 17 59 17 60.2 181.5 0.1 1.0 -8 1 3 6582 11 30 54 11 32 54 --- 18 01 17 60.2 182.4 0.1 1.7 112 F 1 7380 11 32 54 J1751+0939 18 01 17 51.5 183.8 0.2 2.6 -23 1 3 7380 11 32 54 11 33 53 =1749+096 18 02 17 51.4 184.2 0.2 2.8 36 F 1 7779 11 33 53 J1752+1734 18 02 17 59.4 184.4 0.2 3.1 -22 1 3 7779 11 33 53 11 34 53 =1750+175 18 03 17 59.4 184.8 0.2 3.4 38 F 1 8178 11 34 53 NGC6500 18 03 17 60.2 183.4 0.1 2.4 -8 1 3 8178 11 34 53 11 36 53 --- 18 05 17 60.1 184.3 0.2 3.0 112 F 1 8975 11 36 53 J1751+0939 18 05 17 51.4 185.3 0.2 3.6 -23 1 3 8975 11 36 53 11 37 53 =1749+096 18 06 17 51.4 185.7 0.2 3.9 36 F 1 9374 Schedule for VLBA_BR (Code Br ) 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 06 17 59.3 186.2 0.2 4.4 -22 1 3 9374 11 37 53 11 38 53 =1750+175 18 07 17 59.3 186.7 0.2 4.7 38 F 1 9773 11 38 53 NGC6500 18 07 17 60.1 185.3 0.2 3.7 -8 1 3 9773 11 38 53 11 40 52 --- 18 09 17 60.1 186.2 0.2 4.4 112 F 1 10571 11 40 52 J1751+0939 18 09 17 51.3 186.9 0.3 4.7 -23 1 3 10571 11 40 52 11 41 52 =1749+096 18 10 17 51.3 187.3 0.3 4.9 36 F 1 10970 11 41 52 J1752+1734 18 10 17 59.2 188.1 0.3 5.7 -22 1 3 10970 11 41 52 11 42 52 =1750+175 18 11 17 59.2 188.5 0.3 6.0 38 F 1 11369 11 42 52 NGC6500 18 11 17 60.0 187.2 0.3 5.0 -8 1 3 11369 11 42 52 11 44 52 --- 18 13 17 60.0 188.1 0.3 5.7 112 F 1 12167 11 44 52 J1751+0939 18 13 17 51.2 188.5 0.4 5.7 -24 1 3 12167 11 44 52 11 45 51 =1749+096 18 14 17 51.2 188.9 0.4 6.0 36 F 1 12566 11 45 51 J1752+1734 18 14 17 59.1 189.9 0.4 6.9 -22 1 3 12566 11 45 51 11 46 51 =1750+175 18 15 17 59.1 190.4 0.4 7.3 38 F 1 12964 11 46 51 NGC6500 18 15 17 59.9 189.1 0.3 6.4 -8 1 3 12964 11 46 51 11 48 51 --- 18 17 17 59.9 190.0 0.4 7.0 112 F 1 13762 11 48 51 J1751+0939 18 17 17 51.1 190.1 0.4 6.8 -24 1 3 13762 11 48 51 11 49 51 =1749+096 18 18 17 51.1 190.4 0.4 7.1 36 F 1 14161 11 49 51 J1752+1734 18 18 17 59.0 191.8 0.4 8.2 -22 1 3 14161 11 49 51 11 50 51 =1750+175 18 19 17 59.0 192.2 0.4 8.5 38 F 1 14560 11 50 51 J1759+2343 18 19 17 65.3 191.0 0.3 8.0 -19 1 3 14560 11 50 51 11 51 50 =1756+237 18 20 17 65.2 191.6 0.4 8.4 41 F 1 14959 11 51 50 J1745+1814 18 20 17 59.3 196.0 0.6 11.2 -18 1 3 14959 11 51 50 11 52 50 =1743+182 18 21 17 59.3 196.5 0.6 11.5 42 F 1 15358 11 52 50 J1745+1720 18 21 17 58.4 196.3 0.6 11.3 -8 1 3 15358 11 52 50 11 53 50 =1743+173 18 22 17 58.3 196.7 0.6 11.6 52 F 1 15757 11 53 50 J1728+1215 18 22 17 52.4 201.9 0.9 14.8 -18 1 3 15757 11 53 50 11 54 50 =1725+123 18 23 17 52.3 202.3 0.9 15.0 42 F 1 16156 Schedule for VLBA_BR (Code Br ) 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 23 17 50.9 192.4 0.5 8.4 -13 1 3 16156 11 54 50 11 55 50 =1749+096 18 24 17 50.9 192.8 0.5 8.6 47 F 1 16555 11 55 50 J1752+1734 18 24 17 58.8 194.5 0.5 10.1 -22 1 3 16555 11 55 50 11 56 50 =1750+175 18 25 17 58.7 195.0 0.5 10.4 38 F 1 16954 11 56 50 NGC6500 18 25 17 59.6 193.7 0.5 9.6 -8 1 4 16954 11 56 50 11 58 49 --- 18 27 17 59.5 194.7 0.5 10.3 112 R 1 17449 11 58 49 J1751+0939 18 27 17 50.8 193.9 0.6 9.4 -23 1 4 17449 11 58 49 11 59 49 =1749+096 18 28 17 50.8 194.3 0.6 9.6 36 R 1 17050 11 59 49 J1752+1734 18 28 17 58.6 196.3 0.6 11.3 -22 1 4 17050 11 59 49 12 00 49 =1750+175 18 29 17 58.5 196.8 0.6 11.6 38 R 1 16651 12 00 49 NGC6500 18 29 17 59.5 195.6 0.6 10.9 -8 1 4 16651 12 00 49 12 02 49 --- 18 31 17 59.4 196.5 0.6 11.5 112 R 1 15853 12 02 49 J1751+0939 18 31 17 50.6 195.5 0.7 10.4 -23 1 4 15853 12 02 49 12 03 49 =1749+096 18 32 17 50.6 195.8 0.7 10.7 36 R 1 15454 12 03 49 J1752+1734 18 32 17 58.4 198.1 0.7 12.6 -22 1 4 15454 12 03 49 12 04 48 =1750+175 18 33 17 58.3 198.5 0.7 12.9 38 R 1 15055 12 04 48 NGC6500 18 33 17 59.3 197.4 0.6 12.1 -8 1 4 15055 12 04 48 12 06 48 --- 18 35 17 59.2 198.3 0.7 12.8 112 R 1 14257 12 06 48 J1751+0939 18 35 17 50.4 197.0 0.7 11.4 -23 1 4 14257 12 06 48 12 07 48 =1749+096 18 36 17 50.4 197.4 0.7 11.7 36 R 1 13858 12 07 48 J1752+1734 18 36 17 58.2 199.9 0.7 13.8 -22 1 4 13858 12 07 48 12 08 48 =1750+175 18 37 17 58.1 200.3 0.7 14.1 38 R 1 13460 12 08 48 NGC6500 18 37 17 59.1 199.2 0.7 13.4 -8 1 4 13460 12 08 48 12 10 47 --- 18 39 17 58.9 200.1 0.7 14.0 112 R 1 12662 12 10 47 J1751+0939 18 39 17 50.2 198.5 0.8 12.4 -23 1 4 12662 12 10 47 12 11 47 =1749+096 18 40 17 50.2 198.9 0.8 12.7 36 R 1 12263 12 11 47 J1752+1734 18 40 17 57.9 201.6 0.8 14.9 -22 1 4 12263 12 11 47 12 12 47 =1750+175 18 41 17 57.9 202.0 0.8 15.2 38 R 1 11864 Schedule for VLBA_BR (Code Br ) 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 41 17 58.8 201.0 0.8 14.6 -8 1 4 11864 12 12 47 12 14 47 --- 18 43 17 58.7 201.9 0.8 15.2 112 R 1 11066 12 14 47 J1751+0939 18 43 17 50.0 200.0 0.9 13.4 -23 1 4 11066 12 14 47 12 15 47 =1749+096 18 44 17 50.0 200.4 0.9 13.6 36 R 1 10667 12 15 47 J1752+1734 18 44 17 57.7 203.3 0.9 16.1 -21 1 4 10667 12 15 47 12 16 46 =1750+175 18 45 17 57.6 203.8 0.9 16.4 38 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