COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs Exp. Code: bn021aa Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Neil Nagar Address: Arcetri Observatory Largo E. Fermi 5 Firenze 50125 Italy Phone: +39 55 2752277 EMAIL: neil@arcetri.astro.it Fax: Phone during observation: +39 55 2752277 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) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 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 15 18 54 J1751+0939 17 07 30 62.0 156.3 -0.7 -19.3 0 1 1 0 15 18 54 15 20 54 =1749+096 17 09 30 62.2 157.3 -0.7 -18.5 120 F 1 798 15 20 54 J1752+1734 17 09 30 69.4 149.3 -0.7 -25.7 -20 1 1 798 15 20 54 15 21 54 =1750+175 17 10 30 69.5 149.9 -0.7 -25.2 39 F 1 1197 15 21 54 NGC6500 17 10 30 69.9 147.0 -0.8 -27.8 -8 1 1 1197 15 21 54 15 23 54 --- 17 12 30 70.1 148.2 -0.7 -26.8 112 F 1 1995 15 23 54 J1751+0939 17 12 30 62.4 158.8 -0.7 -17.3 -21 1 1 1995 15 23 54 15 24 53 =1749+096 17 13 30 62.5 159.3 -0.6 -16.9 38 F 1 2393 15 24 53 J1752+1734 17 13 30 69.8 151.8 -0.7 -23.7 -21 1 1 2393 15 24 53 15 25 53 =1750+175 17 14 30 69.9 152.5 -0.6 -23.2 39 F 1 2792 15 25 53 NGC6500 17 14 30 70.3 149.5 -0.7 -25.7 -8 1 1 2792 15 25 53 15 27 53 --- 17 16 30 70.5 150.7 -0.7 -24.7 112 F 1 3590 15 27 53 J1751+0939 17 16 30 62.7 160.8 -0.6 -15.7 -22 1 1 3590 15 27 53 15 28 53 =1749+096 17 17 30 62.7 161.4 -0.6 -15.3 38 F 1 3989 15 28 53 J1752+1734 17 17 30 70.2 154.4 -0.6 -21.6 -21 1 1 3989 15 28 53 15 29 53 =1750+175 17 18 30 70.3 155.0 -0.6 -21.0 39 F 1 4388 15 29 53 NGC6500 17 18 30 70.7 152.1 -0.6 -23.6 -8 1 1 4388 15 29 53 15 31 52 --- 17 20 30 70.9 153.4 -0.6 -22.5 112 F 1 5186 15 31 52 J1751+0939 17 20 30 62.9 162.9 -0.5 -14.0 -22 1 1 5186 15 31 52 15 32 52 =1749+096 17 21 30 63.0 163.4 -0.5 -13.6 38 F 1 5585 15 32 52 J1752+1734 17 21 30 70.5 157.0 -0.5 -19.4 -21 1 1 5585 15 32 52 15 33 52 =1750+175 17 22 30 70.6 157.7 -0.5 -18.8 39 F 1 5984 15 33 52 NGC6500 17 22 30 71.0 154.7 -0.6 -21.4 -8 1 1 5984 15 33 52 15 35 52 --- 17 24 30 71.2 156.1 -0.5 -20.3 112 F 1 6781 15 35 52 J1751+0939 17 24 30 63.2 165.0 -0.5 -12.3 -22 1 1 6781 15 35 52 15 36 51 =1749+096 17 25 30 63.2 165.6 -0.4 -11.8 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) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 15 36 51 J1752+1734 17 25 30 70.8 159.8 -0.5 -17.1 -21 1 1 7180 15 36 51 15 37 51 =1750+175 17 26 30 70.9 160.5 -0.4 -16.5 39 F 1 7579 15 37 51 NGC6500 17 26 30 71.4 157.5 -0.5 -19.1 -8 1 1 7579 15 37 51 15 39 51 --- 17 28 30 71.5 158.9 -0.5 -17.9 112 F 1 8377 15 39 51 J1751+0939 17 28 30 63.3 167.2 -0.4 -10.5 -22 1 1 8377 15 39 51 15 40 51 =1749+096 17 29 30 63.4 167.7 -0.4 -10.1 37 F 1 8776 15 40 51 J1752+1734 17 29 30 71.1 162.6 -0.4 -14.8 -21 1 1 8776 15 40 51 15 41 51 =1750+175 17 30 30 71.1 163.3 -0.4 -14.2 38 F 1 9175 15 41 51 NGC6500 17 30 30 71.7 160.3 -0.4 -16.7 -8 1 1 9175 15 41 51 15 43 50 --- 17 32 30 71.8 161.8 -0.4 -15.5 112 F 1 9973 15 43 50 J1751+0939 17 32 30 63.5 169.4 -0.3 -8.7 -23 1 1 9973 15 43 50 15 44 50 =1749+096 17 33 30 63.5 169.9 -0.3 -8.3 37 F 1 10372 15 44 50 J1752+1734 17 33 30 71.3 165.5 -0.3 -12.3 -21 1 1 10372 15 44 50 15 45 50 =1750+175 17 34 30 71.3 166.2 -0.3 -11.7 38 F 1 10771 15 45 50 NGC6500 17 34 30 71.9 163.3 -0.4 -14.2 -8 1 1 10771 15 45 50 15 47 50 --- 17 36 30 72.0 164.8 -0.3 -13.0 112 F 1 11568 15 47 50 J1751+0939 17 36 30 63.6 171.6 -0.3 -6.9 -23 1 1 11568 15 47 50 15 48 49 =1749+096 17 37 30 63.7 172.1 -0.2 -6.5 37 F 1 11967 15 48 49 J1752+1734 17 37 30 71.5 168.4 -0.3 -9.9 -22 1 1 11967 15 48 49 15 49 49 =1750+175 17 38 30 71.5 169.1 -0.2 -9.2 38 F 1 12366 15 49 49 J1759+2343 17 38 30 77.2 158.3 -0.3 -19.1 -17 1 1 12366 15 49 49 15 50 49 =1756+237 17 39 30 77.2 159.3 -0.3 -18.3 43 F 1 12765 15 50 49 J1745+1814 17 39 30 72.4 174.9 -0.1 -4.4 -16 1 1 12765 15 50 49 15 51 49 =1743+182 17 40 30 72.4 175.6 -0.1 -3.7 43 F 1 13164 15 51 49 J1745+1720 17 40 30 71.5 176.1 -0.1 -3.3 -8 1 1 13164 15 51 49 15 52 49 =1743+173 17 41 30 71.5 176.8 -0.1 -2.7 52 F 1 13563 15 52 49 J1728+1215 17 41 30 66.3 188.1 0.2 6.7 -16 1 1 13563 15 52 49 15 53 49 =1725+123 17 42 30 66.3 188.7 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) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 15 55 49 J1751+0939 17 44 31 63.8 176.0 -0.1 -3.3 106 1 1 13962 15 55 49 15 56 49 =1749+096 17 45 31 63.8 176.6 -0.1 -2.8 60 F 1 14361 15 56 49 J1752+1734 17 45 31 71.7 174.4 -0.1 -4.8 -22 1 1 14361 15 56 49 15 57 49 =1750+175 17 46 31 71.7 175.2 -0.1 -4.1 38 F 1 14760 15 57 49 NGC6500 17 46 31 72.4 172.4 -0.2 -6.5 -8 1 1 14760 15 57 49 15 59 49 --- 17 48 31 72.5 174.0 -0.1 -5.1 112 F 1 15557 15 59 49 J1751+0939 17 48 31 63.9 178.2 -0.1 -1.5 -23 1 1 15557 15 59 49 16 00 48 =1749+096 17 49 31 63.9 178.8 0.0 -1.0 37 F 1 15956 16 00 48 J1752+1734 17 49 31 71.8 177.4 -0.1 -2.2 -22 1 1 15956 16 00 48 16 01 48 =1750+175 17 50 31 71.8 178.2 0.0 -1.5 38 F 1 16355 16 01 48 NGC6500 17 50 31 72.5 175.6 -0.1 -3.8 -8 1 1 16355 16 01 48 16 03 48 --- 17 52 31 72.5 177.2 -0.1 -2.4 112 F 1 17153 16 03 48 J1751+0939 17 52 31 63.9 180.5 0.0 0.4 -23 1 2 17153 16 03 48 16 04 48 =1749+096 17 53 31 63.9 181.0 0.0 0.9 36 R 1 16754 16 04 48 J1752+1734 17 53 31 71.8 180.5 0.0 0.4 -22 1 2 16754 16 04 48 16 05 48 =1750+175 17 54 31 71.8 181.2 0.0 1.1 38 R 1 16355 16 05 48 NGC6500 17 54 31 72.6 178.7 0.0 -1.1 -8 1 2 16355 16 05 48 16 07 47 --- 17 56 31 72.6 180.3 0.0 0.3 112 R 1 15557 16 07 47 J1751+0939 17 56 31 63.8 182.7 0.1 2.2 -23 1 2 15557 16 07 47 16 08 47 =1749+096 17 57 31 63.8 183.3 0.1 2.7 36 R 1 15159 16 08 47 J1752+1734 17 57 31 71.8 183.5 0.1 3.0 -22 1 2 15159 16 08 47 16 09 47 =1750+175 17 58 31 71.8 184.3 0.1 3.7 38 R 1 14760 16 09 47 NGC6500 17 58 31 72.6 181.9 0.0 1.6 -8 1 2 14760 16 09 47 16 11 47 --- 18 00 31 72.5 183.5 0.1 3.0 112 R 1 13962 16 11 47 J1751+0939 18 00 31 63.8 184.9 0.1 4.1 -23 1 2 13962 16 11 47 16 12 47 =1749+096 18 01 31 63.8 185.5 0.2 4.5 36 R 1 13563 16 12 47 J1752+1734 18 01 31 71.7 186.6 0.1 5.6 -22 1 2 13563 16 12 47 16 13 46 =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) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 16 13 46 NGC6500 18 02 31 72.5 185.1 0.1 4.3 -8 1 2 13164 16 13 46 16 15 46 --- 18 04 31 72.5 186.6 0.1 5.7 112 R 1 12366 16 15 46 J1751+0939 18 04 31 63.7 187.2 0.2 5.9 -24 1 2 12366 16 15 46 16 16 46 =1749+096 18 05 31 63.7 187.7 0.2 6.3 36 R 1 11967 16 16 46 J1752+1734 18 05 31 71.6 189.6 0.2 8.1 -22 1 2 11967 16 16 46 16 17 46 =1750+175 18 06 31 71.5 190.3 0.2 8.8 38 R 1 11568 16 17 46 J1759+2343 18 06 31 77.8 188.1 0.1 7.2 -19 1 2 11568 16 17 46 16 18 46 =1756+237 18 07 31 77.8 189.2 0.1 8.1 41 R 1 11169 16 18 46 J1745+1814 18 07 31 71.8 196.6 0.4 14.1 -18 1 2 11169 16 18 46 16 19 45 =1743+182 18 08 31 71.8 197.3 0.4 14.7 42 R 1 10771 16 19 45 J1745+1720 18 08 31 70.9 196.8 0.4 14.2 -8 1 2 10771 16 19 45 16 20 45 =1743+173 18 09 31 70.8 197.5 0.4 14.8 52 R 1 10372 16 20 45 J1728+1215 18 09 31 64.7 204.2 0.7 19.9 -18 1 2 10372 16 20 45 16 21 45 =1725+123 18 10 31 64.6 204.7 0.7 20.3 42 R 1 9973 16 23 46 J1642+3948 18 12 32 71.9 289.6 1.5 95.8 58 1 2 9973 16 23 46 16 26 45 =1641+399 18 15 32 71.3 289.4 1.5 95.1 180 R 1 8776 16 26 45 J1751+0939 18 15 32 63.3 193.2 0.4 10.8 -70 1 2 8776 16 26 45 16 29 15 =1749+096 18 18 02 63.2 194.5 0.4 11.9 79 R 1 7779 16 29 15 J1752+1734 18 18 02 71.0 198.7 0.4 15.8 -22 1 2 7779 16 29 15 16 30 15 =1750+175 18 19 02 70.9 199.4 0.4 16.4 38 R 1 7380 16 30 15 NGC6500 18 19 02 71.8 197.7 0.4 15.1 -8 1 2 7380 16 30 15 16 32 14 --- 18 21 02 71.7 199.2 0.4 16.3 112 R 1 6582 16 32 14 J1751+0939 18 21 02 63.0 196.1 0.5 13.2 -23 1 2 6582 16 32 14 16 33 14 =1749+096 18 22 02 63.0 196.7 0.5 13.6 36 R 1 6183 16 33 14 J1752+1734 18 22 02 70.7 201.4 0.5 18.1 -21 1 2 6183 16 33 14 16 34 14 =1750+175 18 23 02 70.6 202.1 0.5 18.7 38 R 1 5784 16 34 14 NGC6500 18 23 02 71.6 200.6 0.4 17.5 -8 1 2 5784 16 34 14 16 36 14 --- 18 25 02 71.4 202.0 0.5 18.7 112 R 1 4986 Schedule for VLBA_LA (Code La ) Page 6 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 16 36 14 J1751+0939 18 25 02 62.8 198.2 0.6 14.9 -23 1 2 4986 16 36 14 16 37 14 =1749+096 18 26 02 62.7 198.7 0.6 15.3 37 R 1 4587 16 37 14 J1752+1734 18 26 02 70.4 204.1 0.6 20.4 -21 1 2 4587 16 37 14 16 38 13 =1750+175 18 27 02 70.3 204.8 0.6 20.9 39 R 1 4189 16 38 13 NGC6500 18 27 02 71.3 203.4 0.5 19.9 -8 1 2 4189 16 38 13 16 40 13 --- 18 29 02 71.1 204.8 0.5 21.0 112 R 1 3391 16 40 13 J1751+0939 18 29 02 62.5 200.3 0.6 16.6 -23 1 2 3391 16 40 13 16 41 13 =1749+096 18 30 02 62.5 200.8 0.6 17.0 37 R 1 2992 16 41 13 J1752+1734 18 30 02 70.0 206.8 0.6 22.5 -21 1 2 2992 16 41 13 16 42 13 =1750+175 18 31 02 69.9 207.4 0.6 23.1 39 R 1 2593 16 42 13 NGC6500 18 31 02 70.9 206.2 0.6 22.1 -8 1 2 2593 16 42 13 16 44 12 --- 18 33 02 70.7 207.5 0.6 23.2 112 R 1 1795 16 44 12 J1751+0939 18 33 02 62.2 202.3 0.7 18.2 -23 1 2 1795 16 44 12 16 45 12 =1749+096 18 34 02 62.2 202.8 0.7 18.6 37 R 1 1396 16 45 12 J1752+1734 18 34 02 69.6 209.3 0.7 24.6 -21 1 2 1396 16 45 12 16 46 12 =1750+175 18 35 02 69.5 209.9 0.7 25.1 39 R 1 997 16 46 12 NGC6500 18 35 02 70.6 208.8 0.6 24.3 -8 1 2 997 16 46 12 16 48 12 --- 18 37 02 70.4 210.1 0.7 25.4 112 R 1 199 16 48 12 J1751+0939 18 37 02 61.9 204.3 0.8 19.8 -23 1 3 199 16 48 12 16 49 12 =1749+096 18 38 02 61.8 204.8 0.8 20.2 37 F 1 598 16 49 12 J1752+1734 18 38 02 69.2 211.7 0.8 26.6 -21 1 3 598 16 49 12 16 50 11 =1750+175 18 39 02 69.1 212.3 0.8 27.1 39 F 1 997 16 50 11 NGC6500 18 39 02 70.1 211.4 0.7 26.4 -8 1 3 997 16 50 11 16 52 11 --- 18 41 02 69.9 212.6 0.7 27.4 112 F 1 1795 16 52 11 J1751+0939 18 41 02 61.6 206.3 0.8 21.4 -23 1 3 1795 16 52 11 16 53 11 =1749+096 18 42 02 61.5 206.7 0.8 21.7 37 F 1 2194 16 53 11 J1752+1734 18 42 02 68.8 214.1 0.8 28.5 -21 1 3 2194 16 53 11 16 54 11 =1750+175 18 43 02 68.7 214.7 0.8 29.0 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) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 16 54 11 NGC6500 18 43 02 69.7 213.8 0.8 28.4 -8 1 3 2593 16 54 11 16 56 10 --- 18 45 02 69.5 215.0 0.8 29.4 112 F 1 3391 16 56 10 J1751+0939 18 45 02 61.2 208.2 0.9 22.9 -23 1 3 3391 16 56 10 16 57 10 =1749+096 18 46 02 61.1 208.6 0.9 23.2 37 F 1 3790 16 57 10 J1752+1734 18 46 02 68.3 216.4 0.9 30.3 -20 1 3 3790 16 57 10 16 58 10 =1750+175 18 47 02 68.2 216.9 0.9 30.7 39 F 1 4189 16 58 10 J1759+2343 18 47 02 74.1 224.0 0.8 38.0 -18 1 3 4189 16 58 10 16 59 10 =1756+237 18 48 02 74.0 224.6 0.8 38.5 42 F 1 4587 16 59 10 J1745+1814 18 48 02 67.7 222.1 1.0 34.9 -18 1 3 4587 16 59 10 17 00 10 =1743+182 18 49 02 67.6 222.6 1.0 35.3 41 F 1 4986 17 00 10 J1745+1720 18 49 02 66.8 221.4 1.1 34.2 -8 1 3 4986 17 00 10 17 01 10 =1743+173 18 50 02 66.7 221.9 1.1 34.6 52 F 1 5385 17 01 10 J1728+1215 18 50 02 60.1 223.2 1.4 34.7 -19 1 3 5385 17 01 10 17 02 09 =1725+123 18 51 02 60.0 223.6 1.4 35.0 41 F 1 5784 17 02 09 J1751+0939 18 51 02 60.6 210.9 1.0 25.0 -14 1 3 5784 17 02 09 17 03 09 =1749+096 18 52 02 60.5 211.4 1.0 25.4 45 F 1 6183 17 03 09 J1752+1734 18 52 02 67.6 219.6 1.0 32.9 -20 1 3 6183 17 03 09 17 04 09 =1750+175 18 53 02 67.4 220.1 1.0 33.3 40 F 1 6582 17 04 09 NGC6500 18 53 02 68.5 219.5 0.9 33.0 -8 1 3 6582 17 04 09 17 06 09 --- 18 55 02 68.2 220.6 1.0 33.8 112 F 1 7380 17 06 09 J1751+0939 18 55 02 60.2 212.7 1.1 26.4 -22 1 3 7380 17 06 09 17 07 09 =1749+096 18 56 02 60.1 213.2 1.1 26.8 38 F 1 7779 17 07 09 J1752+1734 18 56 02 67.0 221.7 1.1 34.5 -20 1 3 7779 17 07 09 17 08 08 =1750+175 18 57 02 66.9 222.2 1.1 34.8 40 F 1 8178 17 08 08 NGC6500 18 57 02 68.0 221.7 1.0 34.6 -8 1 3 8178 17 08 08 17 10 08 --- 18 59 02 67.7 222.7 1.0 35.4 112 F 1 8975 17 10 08 J1751+0939 18 59 02 59.7 214.5 1.1 27.8 -22 1 3 8975 17 10 08 17 11 08 =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) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 17 11 08 J1752+1734 19 00 02 66.5 223.6 1.1 36.0 -20 1 3 9374 17 11 08 17 12 08 =1750+175 19 01 02 66.3 224.1 1.1 36.3 40 F 1 9773 17 12 08 NGC6500 19 01 02 67.4 223.7 1.1 36.2 -8 1 3 9773 17 12 08 17 14 07 --- 19 03 02 67.1 224.7 1.1 36.9 112 F 1 10571 17 14 07 J1751+0939 19 03 02 59.2 216.2 1.2 29.1 -22 1 3 10571 17 14 07 17 15 07 =1749+096 19 04 02 59.1 216.6 1.2 29.4 38 F 1 10970 17 15 07 J1752+1734 19 04 02 65.9 225.5 1.2 37.4 -20 1 3 10970 17 15 07 17 16 07 =1750+175 19 05 02 65.8 226.0 1.2 37.7 40 F 1 11369 17 16 07 NGC6500 19 05 02 66.8 225.7 1.1 37.7 -8 1 3 11369 17 16 07 17 18 07 --- 19 07 02 66.6 226.6 1.2 38.4 112 F 1 12167 17 18 07 J1751+0939 19 07 02 58.8 217.9 1.3 30.3 -22 1 3 12167 17 18 07 17 19 07 =1749+096 19 08 02 58.6 218.3 1.3 30.6 38 F 1 12566 17 19 07 J1752+1734 19 08 02 65.3 227.4 1.3 38.8 -19 1 3 12566 17 19 07 17 20 06 =1750+175 19 09 02 65.2 227.8 1.3 39.1 40 F 1 12964 17 20 06 NGC6500 19 09 02 66.3 227.5 1.2 39.1 -8 1 3 12964 17 20 06 17 22 06 --- 19 11 02 66.0 228.4 1.2 39.8 112 F 1 13762 17 22 06 J1751+0939 19 11 02 58.2 219.5 1.3 31.6 -21 1 3 13762 17 22 06 17 23 06 =1749+096 19 12 02 58.1 219.9 1.3 31.8 38 F 1 14161 17 23 06 J1752+1734 19 12 02 64.7 229.1 1.3 40.0 -19 1 3 14161 17 23 06 17 24 06 =1750+175 19 13 02 64.6 229.5 1.3 40.3 41 F 1 14560 17 24 06 J1759+2343 19 13 02 70.0 238.0 1.2 48.7 -17 1 3 14560 17 24 06 17 25 06 =1756+237 19 14 02 69.8 238.5 1.2 49.1 43 F 1 14959 17 25 06 J1745+1814 19 14 02 63.8 233.8 1.5 43.5 -18 1 3 14959 17 25 06 17 26 05 =1743+182 19 15 02 63.7 234.1 1.5 43.8 42 F 1 15358 17 26 05 J1745+1720 19 15 02 62.9 232.9 1.5 42.7 -7 1 3 15358 17 26 05 17 27 05 =1743+173 19 16 02 62.8 233.3 1.5 42.9 52 F 1 15757 17 27 05 J1728+1215 19 16 02 56.2 232.7 1.8 41.4 -19 1 3 15757 17 27 05 17 28 05 =1725+123 19 17 02 56.0 233.1 1.8 41.6 41 F 1 16156 Schedule for VLBA_LA (Code La ) Page 9 BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 17 28 05 J1751+0939 19 17 02 57.5 221.8 1.4 33.3 -13 1 3 16156 17 28 05 17 29 05 =1749+096 19 18 02 57.3 222.2 1.4 33.6 46 F 1 16555 17 29 05 J1752+1734 19 18 02 63.8 231.6 1.4 41.8 -19 1 3 16555 17 29 05 17 30 05 =1750+175 19 19 02 63.6 232.0 1.4 42.1 41 F 1 16954 17 30 05 NGC6500 19 19 02 64.7 231.9 1.4 42.2 -8 1 4 16954 17 30 05 17 32 04 --- 19 21 02 64.4 232.7 1.4 42.8 112 R 1 17449 17 32 04 J1751+0939 19 21 02 56.9 223.3 1.5 34.4 -21 1 4 17449 17 32 04 17 33 04 =1749+096 19 22 02 56.8 223.7 1.5 34.7 39 R 1 17050 17 33 04 J1752+1734 19 22 02 63.1 233.2 1.5 42.9 -19 1 4 17050 17 33 04 17 34 04 =1750+175 19 23 02 63.0 233.6 1.5 43.2 41 R 1 16651 17 34 04 NGC6500 19 23 02 64.1 233.5 1.4 43.4 -8 1 4 16651 17 34 04 17 36 04 --- 19 25 02 63.7 234.3 1.5 43.9 112 R 1 15853 17 36 04 J1751+0939 19 25 02 56.3 224.8 1.6 35.4 -21 1 4 15853 17 36 04 17 37 04 =1749+096 19 26 02 56.2 225.2 1.6 35.7 39 R 1 15454 17 37 04 J1752+1734 19 26 02 62.5 234.7 1.6 44.0 -19 1 4 15454 17 37 04 17 38 04 =1750+175 19 27 02 62.3 235.1 1.6 44.2 41 R 1 15055 17 38 04 NGC6500 19 27 02 63.4 235.0 1.5 44.5 -8 1 4 15055 17 38 04 17 40 03 --- 19 29 02 63.1 235.8 1.5 45.0 112 R 1 14257 17 40 03 J1751+0939 19 29 02 55.8 226.2 1.6 36.5 -21 1 4 14257 17 40 03 17 41 03 =1749+096 19 30 02 55.6 226.6 1.6 36.7 39 R 1 13858 17 41 03 J1752+1734 19 30 02 61.8 236.1 1.6 45.0 -18 1 4 13858 17 41 03 17 42 03 =1750+175 19 31 02 61.7 236.5 1.6 45.2 41 R 1 13460 17 42 03 NGC6500 19 31 02 62.7 236.5 1.6 45.5 -8 1 4 13460 17 42 03 17 44 03 --- 19 33 02 62.4 237.2 1.6 45.9 112 R 1 12662 17 44 03 J1751+0939 19 33 02 55.2 227.6 1.7 37.4 -20 1 4 12662 17 44 03 17 45 02 =1749+096 19 34 02 55.0 228.0 1.7 37.7 39 R 1 12263 17 45 02 J1752+1734 19 34 02 61.1 237.5 1.7 45.9 -18 1 4 12263 17 45 02 17 46 02 =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) ---------------------------------------------------------------------------------------- --- Mon 3 Feb 2003 Day 34 --- 17 46 02 NGC6500 19 35 02 62.1 237.9 1.6 46.4 -8 1 4 11864 17 46 02 17 48 02 --- 19 37 02 61.7 238.6 1.7 46.9 112 R 1 11066 17 48 02 J1751+0939 19 37 02 54.6 229.0 1.8 38.4 -20 1 4 11066 17 48 02 17 49 02 =1749+096 19 38 02 54.4 229.3 1.8 38.6 40 R 1 10667 17 49 02 J1752+1734 19 38 02 60.5 238.9 1.8 46.8 -18 1 4 10667 17 49 02 17 50 02 =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 06.160134 18 20 39.91157 * 18 20 17.66100 18 20 03.03869 From catalog imbedded in main SCHED input file. * J1642+3948 16 41 17.606214 * 16 42 58.809952 16 43 03.731657 1641+399 39 54 10.81489 * 39 48 36.99395 39 47 59.08007 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 14.021405 1725+123 12 18 03.42295 * 12 15 39.48600 12 15 18.91779 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 41.714173 1743+173 17 21 09.18610 * 17 20 01.42341 17 19 44.24487 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 02.360905 1743+182 18 15 56.63458 * 18 14 50.42224 18 14 33.14812 /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 39.860572 1749+096 09 39 42.82596 * 09 39 00.72851 09 38 46.73713 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 52.455620 1750+175 17 34 56.75234 * 17 34 20.35028 17 34 05.01941 /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 06.276670 1756+237 23 43 55.77912 * 23 43 46.95379 23 43 32.16005 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 58.6 J1642+3948 83.3 J1728+1215 61.4 J1745+1720 60.1 J1745+1814 60.6 J1751+0939 55.1 J1752+1734 58.8 J1759+2343 61.1 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