COVER INFORMATION Station: VLBA_BR (Code Br ) 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_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) ---------------------------------------------------------------------------------------- --- 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 16 13 45 46.3 143.7 -1.6 -23.6 0 1 1 0 13 45 30 13 47 29 =1749+096 16 15 45 46.5 144.3 -1.6 -23.2 120 F 1 798 13 47 29 J1752+1734 16 15 45 53.6 138.6 -1.6 -27.6 -20 1 1 798 13 47 29 13 48 29 =1750+175 16 16 45 53.7 139.0 -1.6 -27.3 40 F 1 1197 13 48 29 NGC6500 16 16 45 54.0 137.2 -1.7 -28.5 -7 1 1 1197 13 48 29 13 50 29 --- 16 18 45 54.2 138.0 -1.6 -28.1 113 F 1 1995 13 50 29 J1751+0939 16 18 45 46.8 145.3 -1.5 -22.6 -21 1 1 1995 13 50 29 13 51 29 =1749+096 16 19 45 46.9 145.7 -1.5 -22.4 39 F 1 2393 13 51 29 J1752+1734 16 19 45 54.0 140.1 -1.6 -26.7 -20 1 1 2393 13 51 29 13 52 29 =1750+175 16 20 45 54.1 140.4 -1.5 -26.5 40 F 1 2792 13 52 29 NGC6500 16 20 45 54.5 138.7 -1.6 -27.7 -7 1 1 2792 13 52 29 13 54 28 --- 16 22 45 54.7 139.4 -1.6 -27.2 113 F 1 3590 13 54 28 J1751+0939 16 22 45 47.2 146.7 -1.5 -21.8 -21 1 1 3590 13 54 28 13 55 28 =1749+096 16 23 45 47.3 147.0 -1.5 -21.6 39 F 1 3989 13 55 28 J1752+1734 16 23 45 54.4 141.5 -1.5 -25.8 -20 1 1 3989 13 55 28 13 56 28 =1750+175 16 24 45 54.5 141.9 -1.5 -25.6 40 F 1 4388 13 56 28 NGC6500 16 24 45 54.9 140.1 -1.5 -26.8 -7 1 1 4388 13 56 28 13 58 28 --- 16 26 45 55.1 140.9 -1.5 -26.3 113 F 1 5186 13 58 28 J1751+0939 16 26 45 47.6 148.0 -1.4 -21.0 -21 1 1 5186 13 58 28 13 59 27 =1749+096 16 27 45 47.7 148.4 -1.4 -20.8 39 F 1 5585 13 59 27 J1752+1734 16 27 45 54.8 143.0 -1.4 -24.9 -20 1 1 5585 13 59 27 14 00 27 =1750+175 16 28 45 54.9 143.4 -1.4 -24.7 39 F 1 5984 14 00 27 NGC6500 16 28 45 55.3 141.6 -1.5 -25.9 -7 1 1 5984 14 00 27 14 02 27 --- 16 30 45 55.5 142.4 -1.4 -25.4 113 F 1 6781 14 02 27 J1751+0939 16 30 45 47.9 149.4 -1.3 -20.2 -21 1 1 6781 14 02 27 14 03 27 =1749+096 16 31 45 48.0 149.8 -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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 14 03 27 J1752+1734 16 31 45 55.2 144.5 -1.4 -24.0 -20 1 1 7180 14 03 27 14 04 27 =1750+175 16 32 45 55.3 144.9 -1.3 -23.7 39 F 1 7579 14 04 27 NGC6500 16 32 45 55.7 143.1 -1.4 -24.9 -7 1 1 7579 14 04 27 14 06 26 --- 16 34 45 55.9 143.9 -1.4 -24.5 113 F 1 8377 14 06 26 J1751+0939 16 34 45 48.2 150.8 -1.3 -19.3 -21 1 1 8377 14 06 26 14 07 26 =1749+096 16 35 45 48.3 151.1 -1.3 -19.1 38 F 1 8776 14 07 26 J1752+1734 16 35 45 55.6 146.1 -1.3 -23.0 -21 1 1 8776 14 07 26 14 08 26 =1750+175 16 36 45 55.7 146.5 -1.3 -22.7 39 F 1 9175 14 08 26 NGC6500 16 36 45 56.1 144.7 -1.3 -24.0 -7 1 1 9175 14 08 26 14 10 26 --- 16 38 45 56.3 145.5 -1.3 -23.5 113 F 1 9973 14 10 26 J1751+0939 16 38 45 48.6 152.2 -1.2 -18.4 -21 1 1 9973 14 10 26 14 11 25 =1749+096 16 39 45 48.6 152.6 -1.2 -18.2 38 F 1 10372 14 11 25 J1752+1734 16 39 45 56.0 147.7 -1.2 -22.0 -21 1 1 10372 14 11 25 14 12 25 =1750+175 16 40 45 56.1 148.1 -1.2 -21.7 39 F 1 10771 14 12 25 NGC6500 16 40 45 56.5 146.2 -1.3 -23.0 -7 1 1 10771 14 12 25 14 14 25 --- 16 42 45 56.7 147.0 -1.2 -22.5 113 F 1 11568 14 14 25 J1751+0939 16 42 45 48.9 153.6 -1.1 -17.5 -22 1 1 11568 14 14 25 14 15 25 =1749+096 16 43 45 48.9 154.0 -1.1 -17.3 38 F 1 11967 14 15 25 J1752+1734 16 43 45 56.3 149.2 -1.2 -21.0 -21 1 1 11967 14 15 25 14 16 25 =1750+175 16 44 45 56.4 149.6 -1.1 -20.7 39 F 1 12366 14 16 25 J1759+2343 16 44 45 61.5 142.3 -1.2 -26.5 -16 1 1 12366 14 16 25 14 17 24 =1756+237 16 45 45 61.6 142.7 -1.2 -26.2 44 F 1 12765 14 17 24 J1745+1814 16 45 45 57.7 152.5 -1.0 -19.0 -14 1 1 12765 14 17 24 14 18 24 =1743+182 16 46 45 57.8 152.9 -1.0 -18.7 46 F 1 13164 14 18 24 J1745+1720 16 46 45 56.9 153.6 -1.0 -18.1 -8 1 1 13164 14 18 24 14 19 24 =1743+173 16 47 45 57.0 154.0 -1.0 -17.9 52 F 1 13563 14 19 24 J1728+1215 16 47 45 53.1 163.3 -0.7 -11.3 -14 1 1 13563 14 19 24 14 20 24 =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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 14 22 25 J1751+0939 16 50 46 49.4 156.5 -1.0 -15.7 107 1 1 13962 14 22 25 14 23 24 =1749+096 16 51 46 49.5 156.9 -1.0 -15.4 60 F 1 14361 14 23 24 J1752+1734 16 51 46 57.0 152.5 -1.0 -18.8 -21 1 1 14361 14 23 24 14 24 24 =1750+175 16 52 46 57.1 152.9 -1.0 -18.6 39 F 1 14760 14 24 24 NGC6500 16 52 46 57.5 151.1 -1.1 -19.9 -7 1 1 14760 14 24 24 14 26 24 --- 16 54 46 57.7 152.0 -1.0 -19.3 113 F 1 15557 14 26 24 J1751+0939 16 54 46 49.7 158.0 -0.9 -14.7 -22 1 1 15557 14 26 24 14 27 24 =1749+096 16 55 46 49.7 158.4 -0.9 -14.5 38 F 1 15956 14 27 24 J1752+1734 16 55 46 57.3 154.2 -1.0 -17.8 -21 1 1 15956 14 27 24 14 28 24 =1750+175 16 56 46 57.4 154.6 -0.9 -17.5 39 F 1 16355 14 28 24 NGC6500 16 56 46 57.8 152.8 -1.0 -18.7 -7 1 1 16355 14 28 24 14 30 23 --- 16 58 46 58.0 153.6 -1.0 -18.2 113 F 1 17153 14 30 23 J1751+0939 16 58 46 49.9 159.5 -0.9 -13.7 -22 1 2 17153 14 30 23 14 31 23 =1749+096 16 59 46 50.0 159.8 -0.9 -13.5 38 R 1 16754 14 31 23 J1752+1734 16 59 46 57.6 155.9 -0.9 -16.6 -21 1 2 16754 14 31 23 14 32 23 =1750+175 17 00 46 57.6 156.3 -0.9 -16.3 39 R 1 16355 14 32 23 NGC6500 17 00 46 58.1 154.5 -0.9 -17.6 -7 1 2 16355 14 32 23 14 34 23 --- 17 02 46 58.3 155.4 -0.9 -17.0 113 R 1 15557 14 34 23 J1751+0939 17 02 46 50.2 161.0 -0.8 -12.8 -22 1 2 15557 14 34 23 14 35 22 =1749+096 17 03 46 50.2 161.3 -0.8 -12.5 38 R 1 15159 14 35 22 J1752+1734 17 03 46 57.8 157.6 -0.8 -15.5 -21 1 2 15159 14 35 22 14 36 22 =1750+175 17 04 46 57.9 158.0 -0.8 -15.2 39 R 1 14760 14 36 22 NGC6500 17 04 46 58.4 156.2 -0.9 -16.5 -7 1 2 14760 14 36 22 14 38 22 --- 17 06 46 58.6 157.1 -0.8 -15.9 113 R 1 13962 14 38 22 J1751+0939 17 06 46 50.4 162.5 -0.7 -11.8 -22 1 2 13962 14 38 22 14 39 22 =1749+096 17 07 46 50.4 162.8 -0.7 -11.5 37 R 1 13563 14 39 22 J1752+1734 17 07 46 58.1 159.3 -0.8 -14.3 -21 1 2 13563 14 39 22 14 40 22 =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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 14 40 22 NGC6500 17 08 46 58.7 158.0 -0.8 -15.3 -7 1 2 13164 14 40 22 14 42 21 --- 17 10 46 58.8 158.9 -0.8 -14.7 113 R 1 12366 14 42 21 J1751+0939 17 10 46 50.6 164.0 -0.7 -10.8 -22 1 2 12366 14 42 21 14 43 21 =1749+096 17 11 46 50.6 164.4 -0.7 -10.5 37 R 1 11967 14 43 21 J1752+1734 17 11 46 58.3 161.1 -0.7 -13.1 -21 1 2 11967 14 43 21 14 44 21 =1750+175 17 12 46 58.4 161.5 -0.7 -12.8 38 R 1 11568 14 44 21 J1759+2343 17 12 46 63.9 155.2 -0.8 -17.8 -17 1 2 11568 14 44 21 14 45 21 =1756+237 17 13 46 64.0 155.7 -0.8 -17.4 43 R 1 11169 14 45 21 J1745+1814 17 13 46 59.4 164.8 -0.5 -10.6 -15 1 2 11169 14 45 21 14 46 21 =1743+182 17 14 46 59.4 165.3 -0.5 -10.3 45 R 1 10771 14 46 21 J1745+1720 17 14 46 58.6 165.7 -0.5 -9.9 -8 1 2 10771 14 46 21 14 47 21 =1743+173 17 15 46 58.6 166.2 -0.5 -9.6 52 R 1 10372 14 47 21 J1728+1215 17 15 46 54.0 174.8 -0.2 -3.6 -15 1 2 10372 14 47 21 14 48 20 =1725+123 17 16 46 54.0 175.2 -0.2 -3.3 45 R 1 9973 14 50 21 J1642+3948 17 18 47 79.5 220.8 0.6 34.6 64 1 2 9973 14 50 21 14 53 21 =1641+399 17 21 47 79.2 223.3 0.6 36.6 180 R 1 8776 14 53 21 J1751+0939 17 21 47 51.0 168.2 -0.5 -7.9 -62 1 2 8776 14 53 21 14 55 50 =1749+096 17 24 17 51.1 169.2 -0.5 -7.3 87 R 1 7779 14 55 50 J1752+1734 17 24 17 58.9 166.7 -0.5 -9.3 -22 1 2 7779 14 55 50 14 56 50 =1750+175 17 25 17 58.9 167.2 -0.5 -9.0 38 R 1 7380 14 56 50 NGC6500 17 25 17 59.5 165.4 -0.5 -10.2 -7 1 2 7380 14 56 50 14 58 50 --- 17 27 17 59.6 166.4 -0.5 -9.6 113 R 1 6582 14 58 50 J1751+0939 17 27 17 51.2 170.4 -0.4 -6.5 -23 1 2 6582 14 58 50 14 59 49 =1749+096 17 28 17 51.2 170.8 -0.4 -6.2 37 R 1 6183 14 59 49 J1752+1734 17 28 17 59.0 168.5 -0.4 -8.0 -22 1 2 6183 14 59 49 15 00 49 =1750+175 17 29 17 59.1 169.0 -0.4 -7.7 38 R 1 5784 15 00 49 NGC6500 17 29 17 59.7 167.3 -0.4 -8.9 -7 1 2 5784 15 00 49 15 02 49 --- 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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 15 02 49 J1751+0939 17 31 17 51.3 171.9 -0.3 -5.5 -23 1 2 4986 15 02 49 15 03 49 =1749+096 17 32 17 51.3 172.3 -0.3 -5.2 37 R 1 4587 15 03 49 J1752+1734 17 32 17 59.1 170.4 -0.3 -6.7 -22 1 2 4587 15 03 49 15 04 49 =1750+175 17 33 17 59.2 170.8 -0.3 -6.4 38 R 1 4189 15 04 49 NGC6500 17 33 17 59.8 169.1 -0.4 -7.6 -7 1 2 4189 15 04 49 15 06 48 --- 17 35 17 59.9 170.1 -0.3 -7.0 112 R 1 3391 15 06 48 J1751+0939 17 35 17 51.4 173.5 -0.3 -4.4 -23 1 2 3391 15 06 48 15 07 48 =1749+096 17 36 17 51.4 173.9 -0.3 -4.1 37 R 1 2992 15 07 48 J1752+1734 17 36 17 59.2 172.2 -0.3 -5.4 -22 1 2 2992 15 07 48 15 08 48 =1750+175 17 37 17 59.3 172.7 -0.3 -5.1 38 R 1 2593 15 08 48 NGC6500 17 37 17 60.0 171.0 -0.3 -6.3 -7 1 2 2593 15 08 48 15 10 48 --- 17 39 17 60.0 172.0 -0.3 -5.6 112 R 1 1795 15 10 48 J1751+0939 17 39 17 51.4 175.1 -0.2 -3.3 -23 1 2 1795 15 10 48 15 11 48 =1749+096 17 40 17 51.4 175.5 -0.2 -3.1 37 R 1 1396 15 11 48 J1752+1734 17 40 17 59.3 174.1 -0.2 -4.1 -22 1 2 1396 15 11 48 15 12 47 =1750+175 17 41 17 59.3 174.5 -0.2 -3.8 38 R 1 997 15 12 47 NGC6500 17 41 17 60.0 172.9 -0.2 -5.0 -7 1 2 997 15 12 47 15 14 47 --- 17 43 17 60.1 173.9 -0.2 -4.3 112 R 1 199 15 14 47 J1751+0939 17 43 17 51.5 176.7 -0.1 -2.3 -23 1 3 199 15 14 47 15 15 47 =1749+096 17 44 17 51.5 177.1 -0.1 -2.0 37 F 1 598 15 15 47 J1752+1734 17 44 17 59.4 175.9 -0.1 -2.8 -22 1 3 598 15 15 47 15 16 47 =1750+175 17 45 17 59.4 176.4 -0.1 -2.5 38 F 1 997 15 16 47 NGC6500 17 45 17 60.1 174.8 -0.2 -3.6 -7 1 3 997 15 16 47 15 18 46 --- 17 47 17 60.1 175.8 -0.1 -3.0 112 F 1 1795 15 18 46 J1751+0939 17 47 17 51.5 178.2 -0.1 -1.2 -23 1 3 1795 15 18 46 15 19 46 =1749+096 17 48 17 51.5 178.6 -0.1 -0.9 37 F 1 2194 15 19 46 J1752+1734 17 48 17 59.4 177.8 -0.1 -1.5 -22 1 3 2194 15 19 46 15 20 46 =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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 15 20 46 NGC6500 17 49 17 60.2 176.7 -0.1 -2.3 -7 1 3 2593 15 20 46 15 22 46 --- 17 51 17 60.2 177.7 -0.1 -1.6 112 F 1 3391 15 22 46 J1751+0939 17 51 17 51.5 179.8 0.0 -0.1 -23 1 3 3391 15 22 46 15 23 46 =1749+096 17 52 17 51.5 180.2 0.0 0.1 36 F 1 3790 15 23 46 J1752+1734 17 52 17 59.4 179.7 0.0 -0.2 -22 1 3 3790 15 23 46 15 24 45 =1750+175 17 53 17 59.4 180.2 0.0 0.1 38 F 1 4189 15 24 45 J1759+2343 17 53 17 65.6 176.7 -0.1 -2.4 -18 1 3 4189 15 24 45 15 25 45 =1756+237 17 54 17 65.6 177.3 -0.1 -2.0 42 F 1 4587 15 25 45 J1745+1814 17 54 17 60.1 183.9 0.1 2.7 -17 1 3 4587 15 25 45 15 26 45 =1743+182 17 55 17 60.1 184.4 0.2 3.1 43 F 1 4986 15 26 45 J1745+1720 17 55 17 59.1 184.4 0.2 3.1 -8 1 3 4986 15 26 45 15 27 45 =1743+173 17 56 17 59.1 184.9 0.2 3.4 52 F 1 5385 15 27 45 J1728+1215 17 56 17 53.6 191.6 0.5 7.9 -17 1 3 5385 15 27 45 15 28 45 =1725+123 17 57 17 53.6 192.0 0.5 8.2 43 F 1 5784 15 28 45 J1751+0939 17 57 17 51.5 182.2 0.1 1.5 -13 1 3 5784 15 28 45 15 29 45 =1749+096 17 58 17 51.5 182.6 0.1 1.8 47 F 1 6183 15 29 45 J1752+1734 17 58 17 59.4 182.5 0.1 1.8 -22 1 3 6183 15 29 45 15 30 44 =1750+175 17 59 17 59.4 183.0 0.1 2.1 38 F 1 6582 15 30 44 NGC6500 17 59 17 60.2 181.5 0.1 1.0 -8 1 3 6582 15 30 44 15 32 44 --- 18 01 17 60.2 182.4 0.1 1.7 112 F 1 7380 15 32 44 J1751+0939 18 01 17 51.5 183.8 0.2 2.6 -23 1 3 7380 15 32 44 15 33 44 =1749+096 18 02 17 51.4 184.2 0.2 2.8 36 F 1 7779 15 33 44 J1752+1734 18 02 17 59.4 184.4 0.2 3.1 -22 1 3 7779 15 33 44 15 34 44 =1750+175 18 03 17 59.4 184.8 0.2 3.4 38 F 1 8178 15 34 44 NGC6500 18 03 17 60.2 183.4 0.1 2.4 -8 1 3 8178 15 34 44 15 36 43 --- 18 05 17 60.1 184.3 0.2 3.1 112 F 1 8975 15 36 43 J1751+0939 18 05 17 51.4 185.4 0.2 3.6 -23 1 3 8975 15 36 43 15 37 43 =1749+096 18 06 17 51.4 185.8 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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 15 37 43 J1752+1734 18 06 17 59.3 186.2 0.2 4.4 -22 1 3 9374 15 37 43 15 38 43 =1750+175 18 07 17 59.3 186.7 0.2 4.7 38 F 1 9773 15 38 43 NGC6500 18 07 17 60.1 185.3 0.2 3.7 -8 1 3 9773 15 38 43 15 40 43 --- 18 09 17 60.1 186.2 0.2 4.4 112 F 1 10571 15 40 43 J1751+0939 18 09 17 51.3 186.9 0.3 4.7 -23 1 3 10571 15 40 43 15 41 43 =1749+096 18 10 17 51.3 187.3 0.3 5.0 36 F 1 10970 15 41 43 J1752+1734 18 10 17 59.2 188.1 0.3 5.7 -22 1 3 10970 15 41 43 15 42 42 =1750+175 18 11 17 59.2 188.6 0.3 6.0 38 F 1 11369 15 42 42 NGC6500 18 11 17 60.0 187.2 0.3 5.1 -8 1 3 11369 15 42 42 15 44 42 --- 18 13 17 60.0 188.1 0.3 5.7 112 F 1 12167 15 44 42 J1751+0939 18 13 17 51.2 188.5 0.4 5.7 -24 1 3 12167 15 44 42 15 45 42 =1749+096 18 14 17 51.2 188.9 0.4 6.0 36 F 1 12566 15 45 42 J1752+1734 18 14 17 59.1 189.9 0.4 6.9 -22 1 3 12566 15 45 42 15 46 42 =1750+175 18 15 17 59.1 190.4 0.4 7.3 38 F 1 12964 15 46 42 NGC6500 18 15 17 59.9 189.1 0.3 6.4 -8 1 3 12964 15 46 42 15 48 41 --- 18 17 17 59.9 190.0 0.4 7.0 112 F 1 13762 15 48 41 J1751+0939 18 17 17 51.1 190.1 0.4 6.8 -24 1 3 13762 15 48 41 15 49 41 =1749+096 18 18 17 51.1 190.5 0.4 7.1 36 F 1 14161 15 49 41 J1752+1734 18 18 17 59.0 191.8 0.4 8.2 -22 1 3 14161 15 49 41 15 50 41 =1750+175 18 19 17 59.0 192.2 0.4 8.5 38 F 1 14560 15 50 41 J1759+2343 18 19 17 65.3 191.1 0.3 8.0 -19 1 3 14560 15 50 41 15 51 41 =1756+237 18 20 17 65.2 191.6 0.4 8.4 41 F 1 14959 15 51 41 J1745+1814 18 20 17 59.3 196.1 0.6 11.2 -18 1 3 14959 15 51 41 15 52 41 =1743+182 18 21 17 59.3 196.5 0.6 11.5 42 F 1 15358 15 52 41 J1745+1720 18 21 17 58.4 196.3 0.6 11.3 -8 1 3 15358 15 52 41 15 53 41 =1743+173 18 22 17 58.3 196.8 0.6 11.6 52 F 1 15757 15 53 41 J1728+1215 18 22 17 52.4 201.9 0.9 14.8 -18 1 3 15757 15 53 41 15 54 40 =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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 15 54 40 J1751+0939 18 23 17 50.9 192.4 0.5 8.4 -13 1 3 16156 15 54 40 15 55 40 =1749+096 18 24 17 50.9 192.8 0.5 8.6 47 F 1 16555 15 55 40 J1752+1734 18 24 17 58.8 194.5 0.5 10.1 -22 1 3 16555 15 55 40 15 56 40 =1750+175 18 25 17 58.7 195.0 0.5 10.4 38 F 1 16954 15 56 40 NGC6500 18 25 17 59.6 193.8 0.5 9.6 -8 1 4 16954 15 56 40 15 58 40 --- 18 27 17 59.5 194.7 0.5 10.3 112 R 1 17449 15 58 40 J1751+0939 18 27 17 50.8 193.9 0.6 9.4 -23 1 4 17449 15 58 40 15 59 40 =1749+096 18 28 17 50.8 194.3 0.6 9.6 36 R 1 17050 15 59 40 J1752+1734 18 28 17 58.6 196.3 0.6 11.3 -22 1 4 17050 15 59 40 16 00 39 =1750+175 18 29 17 58.5 196.8 0.6 11.7 38 R 1 16651 16 00 39 NGC6500 18 29 17 59.4 195.6 0.6 10.9 -8 1 4 16651 16 00 39 16 02 39 --- 18 31 17 59.4 196.5 0.6 11.5 112 R 1 15853 16 02 39 J1751+0939 18 31 17 50.6 195.5 0.7 10.4 -23 1 4 15853 16 02 39 16 03 39 =1749+096 18 32 17 50.6 195.9 0.7 10.7 36 R 1 15454 16 03 39 J1752+1734 18 32 17 58.4 198.1 0.7 12.6 -22 1 4 15454 16 03 39 16 04 39 =1750+175 18 33 17 58.3 198.6 0.7 12.9 38 R 1 15055 16 04 39 NGC6500 18 33 17 59.3 197.4 0.6 12.2 -8 1 4 15055 16 04 39 16 06 38 --- 18 35 17 59.2 198.3 0.7 12.8 112 R 1 14257 16 06 38 J1751+0939 18 35 17 50.4 197.0 0.7 11.4 -23 1 4 14257 16 06 38 16 07 38 =1749+096 18 36 17 50.4 197.4 0.7 11.7 36 R 1 13858 16 07 38 J1752+1734 18 36 17 58.2 199.9 0.7 13.8 -22 1 4 13858 16 07 38 16 08 38 =1750+175 18 37 17 58.1 200.3 0.7 14.1 38 R 1 13460 16 08 38 NGC6500 18 37 17 59.0 199.2 0.7 13.4 -8 1 4 13460 16 08 38 16 10 38 --- 18 39 17 58.9 200.1 0.7 14.0 112 R 1 12662 16 10 38 J1751+0939 18 39 17 50.2 198.5 0.8 12.4 -23 1 4 12662 16 10 38 16 11 38 =1749+096 18 40 17 50.2 198.9 0.8 12.7 36 R 1 12263 16 11 38 J1752+1734 18 40 17 57.9 201.6 0.8 14.9 -22 1 4 12263 16 11 38 16 12 38 =1750+175 18 41 17 57.9 202.1 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) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 16 12 38 NGC6500 18 41 17 58.8 201.0 0.8 14.6 -8 1 4 11864 16 12 38 16 14 37 --- 18 43 17 58.7 201.9 0.8 15.2 112 R 1 11066 16 14 37 J1751+0939 18 43 17 50.0 200.0 0.9 13.4 -23 1 4 11066 16 14 37 16 15 37 =1749+096 18 44 17 50.0 200.4 0.9 13.6 36 R 1 10667 16 15 37 J1752+1734 18 44 17 57.7 203.3 0.9 16.1 -21 1 4 10667 16 15 37 16 16 37 =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 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