COVER INFORMATION Station: VLBA_NL (Code Nl ) Experiment: BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs Exp. Code: bn021fb 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: J0927+3902; also try J1230+1223 Phase-referencing used for all sources This subscript for NGC4552 (mainly) and NGC4579. Run up to 6 tim Schedule for VLBA_NL (Code Nl ) 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) ---------------------------------------------------------------------------------------- --- Thu 22 Jan 2004 Day 22 --- 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 10 08 01 J1238+0723 12 06 11 54.9 166.1 -0.5 -10.4 0 1 1 0 10 08 01 10 10 01 =1235+076 12 08 11 55.0 166.9 -0.5 -9.8 120 F 1 798 10 10 01 J1230+1223 12 08 11 60.2 168.7 -0.4 -8.6 -16 1 1 798 10 10 01 10 11 01 =1228+126 12 09 11 60.2 169.2 -0.4 -8.2 43 F 1 1197 10 11 01 NGC4552 12 09 11 60.2 166.8 -0.4 -10.0 -8 1 1 1197 10 11 01 10 13 01 --- 12 11 11 60.3 167.8 -0.4 -9.3 112 F 1 1995 10 13 01 J1238+0723 12 11 11 55.1 168.2 -0.5 -8.8 -16 1 1 1995 10 13 01 10 14 00 =1235+076 12 12 11 55.1 168.7 -0.4 -8.5 43 F 1 2393 10 14 00 J1230+1223 12 12 11 60.3 170.7 -0.3 -7.1 -16 1 1 2393 10 14 00 10 15 00 =1228+126 12 13 11 60.3 171.2 -0.3 -6.7 43 F 1 2792 10 15 00 NGC4579 12 13 11 59.5 168.0 -0.4 -9.1 -8 1 1 2792 10 15 00 10 17 00 --- 12 15 11 59.6 168.9 -0.4 -8.4 112 F 1 3590 10 17 00 J1238+0723 12 15 11 55.2 169.9 -0.4 -7.5 -15 1 1 3590 10 17 00 10 18 00 =1235+076 12 16 11 55.2 170.4 -0.4 -7.2 45 F 1 3989 10 18 00 J1230+1223 12 16 11 60.4 172.6 -0.2 -5.6 -16 1 1 3989 10 18 00 10 19 00 =1228+126 12 17 11 60.4 173.1 -0.2 -5.2 43 F 1 4388 10 19 00 NGC4552 12 17 11 60.5 170.7 -0.3 -7.1 -8 1 1 4388 10 19 00 10 20 59 --- 12 19 11 60.5 171.7 -0.3 -6.3 112 F 1 5186 10 20 59 J1238+0723 12 19 11 55.3 171.7 -0.3 -6.3 -16 1 1 5186 10 20 59 10 21 59 =1235+076 12 20 11 55.4 172.1 -0.3 -5.9 43 F 1 5585 10 21 59 J1230+1223 12 20 11 60.5 174.6 -0.2 -4.1 -16 1 1 5585 10 21 59 10 22 59 =1228+126 12 21 11 60.5 175.1 -0.2 -3.7 44 F 1 5984 10 22 59 NGC4579 12 21 11 59.8 171.8 -0.3 -6.2 -8 1 1 5984 10 22 59 10 24 59 --- 12 23 11 59.9 172.8 -0.2 -5.5 111 F 1 6781 10 24 59 J1238+0723 12 23 11 55.4 173.4 -0.3 -5.0 -15 1 1 6781 10 24 59 10 25 58 =1235+076 12 24 11 55.5 173.8 -0.2 -4.6 45 F 1 7180 Schedule for VLBA_NL (Code Nl ) 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) ---------------------------------------------------------------------------------------- --- Thu 22 Jan 2004 Day 22 --- 10 25 58 J1230+1223 12 24 11 60.6 176.6 -0.1 -2.6 -16 1 1 7180 10 25 58 10 26 58 =1228+126 12 25 11 60.6 177.1 -0.1 -2.2 44 F 1 7579 10 26 58 NGC4552 12 25 11 60.7 174.7 -0.2 -4.1 -8 1 1 7579 10 26 58 10 28 58 --- 12 27 11 60.7 175.7 -0.1 -3.3 112 F 1 8377 10 28 58 J1238+0723 12 27 11 55.5 175.2 -0.2 -3.6 -16 1 1 8377 10 28 58 10 29 58 =1235+076 12 28 11 55.5 175.6 -0.2 -3.3 43 F 1 8776 10 29 58 J1230+1223 12 28 11 60.6 178.6 0.0 -1.1 -16 1 1 8776 10 29 58 10 30 58 =1228+126 12 29 11 60.6 179.1 0.0 -0.7 44 F 1 9175 10 30 58 NGC4579 12 29 11 60.0 175.7 -0.1 -3.3 -8 1 1 9175 10 30 58 10 32 57 --- 12 31 11 60.0 176.7 -0.1 -2.5 111 F 1 9973 10 32 57 J1238+0723 12 31 11 55.6 176.9 -0.1 -2.3 -15 1 1 9973 10 32 57 10 33 57 =1235+076 12 32 11 55.6 177.3 -0.1 -2.0 45 F 1 10372 10 33 57 J1230+1223 12 32 11 60.6 180.6 0.0 0.4 -16 1 1 10372 10 33 57 10 34 57 =1228+126 12 33 11 60.6 181.1 0.0 0.8 44 F 1 10771 10 34 57 NGC4552 12 33 11 60.8 178.7 0.0 -1.0 -8 1 1 10771 10 34 57 10 36 57 --- 12 35 11 60.8 179.7 0.0 -0.3 112 F 1 11568 10 36 57 J1238+0723 12 35 11 55.6 178.7 -0.1 -1.0 -16 1 1 11568 10 36 57 10 37 56 =1235+076 12 36 11 55.6 179.1 0.0 -0.7 43 F 1 11967 10 37 56 J1230+1223 12 36 11 60.6 182.6 0.1 2.0 -16 1 1 11967 10 37 56 10 38 56 =1228+126 12 37 11 60.6 183.1 0.1 2.3 44 F 1 12366 10 38 56 NGC4579 12 37 11 60.0 179.6 0.0 -0.3 -8 1 1 12366 10 38 56 10 40 56 --- 12 39 11 60.0 180.6 0.0 0.5 111 F 1 13164 10 40 56 J1238+0723 12 39 11 55.6 180.4 0.0 0.3 -15 1 1 13164 10 40 56 10 41 56 =1235+076 12 40 11 55.6 180.8 0.0 0.6 45 F 1 13563 10 41 56 J1230+1223 12 40 11 60.5 184.5 0.2 3.5 -16 1 1 13563 10 41 56 10 42 56 =1228+126 12 41 11 60.5 185.0 0.2 3.8 44 F 1 13962 10 42 56 J1225+1253 12 41 11 60.9 188.0 0.3 6.1 -8 1 1 13962 10 42 56 10 43 55 =M84 12 42 11 60.9 188.5 0.3 6.5 52 F 1 14361 Schedule for VLBA_NL (Code Nl ) 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) ---------------------------------------------------------------------------------------- --- Thu 22 Jan 2004 Day 22 --- 10 43 55 J1207+1211 12 42 11 59.4 196.9 0.6 12.8 -12 1 1 14361 10 43 55 10 44 55 =1204+124 12 43 11 59.4 197.4 0.6 13.2 48 F 1 14760 10 44 55 J1222+0413 12 43 11 52.1 188.4 0.3 6.3 -20 1 1 14760 10 44 55 10 46 05 =1219+044 12 44 21 52.1 188.9 0.4 6.6 49 F 1 15225 10 46 05 J1300+1206 12 44 21 60.1 172.2 -0.3 -5.9 -22 1 1 15225 10 46 05 10 47 15 =1257+123 12 45 31 60.1 172.8 -0.2 -5.5 48 F 1 15690 10 49 16 J0927+3902 12 47 32 52.3 283.0 3.3 69.3 41 1 1 15690 10 49 16 10 52 15 =0923+392 12 50 32 51.8 283.3 3.4 69.1 180 F 1 16887 10 52 15 J1238+0723 12 50 32 55.5 185.4 0.2 4.0 -71 1 2 16887 10 52 15 10 54 45 =1235+076 12 53 02 55.4 186.5 0.2 4.9 78 R 1 17316 10 54 45 J1230+1223 12 53 02 60.2 190.9 0.4 8.3 -16 1 2 17316 10 54 45 10 55 45 =1228+126 12 54 02 60.2 191.3 0.4 8.6 44 R 1 16917 10 55 45 NGC4552 12 54 02 60.5 189.0 0.3 6.9 -8 1 2 16917 10 55 45 10 57 44 --- 12 56 02 60.4 190.0 0.3 7.6 112 R 1 16119 10 57 44 J1238+0723 12 56 02 55.4 187.8 0.3 5.8 -16 1 2 16119 10 57 44 10 58 44 =1235+076 12 57 02 55.3 188.2 0.3 6.2 44 R 1 15720 10 58 44 J1230+1223 12 57 02 60.1 192.8 0.4 9.7 -15 1 2 15720 10 58 44 10 59 44 =1228+126 12 58 02 60.0 193.3 0.5 10.1 44 R 1 15321 10 59 44 NGC4552 12 58 02 60.4 191.0 0.4 8.4 -7 1 2 15321 10 59 44 11 01 44 --- 13 00 02 60.3 192.0 0.4 9.1 112 R 1 14523 11 01 44 J1238+0723 13 00 02 55.3 189.5 0.4 7.1 -16 1 2 14523 11 01 44 11 02 43 =1235+076 13 01 02 55.2 189.9 0.4 7.5 44 R 1 14124 11 02 43 J1230+1223 13 01 02 59.9 194.7 0.5 11.2 -15 1 2 14124 11 02 43 11 03 43 =1228+126 13 02 02 59.8 195.2 0.5 11.5 45 R 1 13725 11 03 43 NGC4552 13 02 02 60.2 192.9 0.4 9.8 -7 1 2 13725 11 03 43 11 05 43 --- 13 04 02 60.1 193.9 0.5 10.6 112 R 1 12928 11 05 43 J1238+0723 13 04 02 55.1 191.2 0.4 8.4 -16 1 2 12928 11 05 43 11 06 43 =1235+076 13 05 02 55.1 191.7 0.4 8.7 44 R 1 12529 Schedule for VLBA_NL (Code Nl ) 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) ---------------------------------------------------------------------------------------- --- Thu 22 Jan 2004 Day 22 --- 11 06 43 J1230+1223 13 05 02 59.7 196.6 0.6 12.6 -15 1 2 12529 11 06 43 11 07 43 =1228+126 13 06 02 59.6 197.1 0.6 13.0 45 R 1 12130 11 07 43 NGC4552 13 06 02 60.0 194.9 0.5 11.3 -7 1 2 12130 11 07 43 11 09 42 --- 13 08 02 59.9 195.8 0.5 12.0 112 R 1 11332 11 09 42 J1238+0723 13 08 02 55.0 192.9 0.5 9.7 -16 1 2 11332 11 09 42 11 10 42 =1235+076 13 09 02 54.9 193.4 0.5 10.0 44 R 1 10933 11 10 42 J1230+1223 13 09 02 59.5 198.5 0.6 14.0 -15 1 2 10933 11 10 42 11 11 42 =1228+126 13 10 02 59.4 199.0 0.7 14.4 45 R 1 10534 11 11 42 NGC4552 13 10 02 59.8 196.8 0.6 12.7 -7 1 2 10534 11 11 42 11 13 42 --- 13 12 02 59.7 197.7 0.6 13.4 112 R 1 9736 11 13 42 J1238+0723 13 12 02 54.8 194.6 0.6 11.0 -16 1 2 9736 11 13 42 11 14 41 =1235+076 13 13 02 54.7 195.1 0.6 11.3 44 R 1 9337 11 14 41 J1230+1223 13 13 02 59.2 200.3 0.7 15.4 -15 1 2 9337 11 14 41 11 15 41 =1228+126 13 14 02 59.1 200.8 0.7 15.7 45 R 1 8939 11 15 41 NGC4552 13 14 02 59.6 198.6 0.6 14.1 -7 1 2 8939 11 15 41 11 17 41 --- 13 16 02 59.5 199.6 0.7 14.8 112 R 1 8141 11 17 41 J1238+0723 13 16 02 54.6 196.3 0.6 12.2 -16 1 2 8141 11 17 41 11 18 41 =1235+076 13 17 02 54.5 196.7 0.6 12.5 44 R 1 7742 11 18 41 J1230+1223 13 17 02 58.9 202.2 0.8 16.7 -15 1 2 7742 11 18 41 11 19 41 =1228+126 13 18 02 58.9 202.6 0.8 17.1 45 R 1 7343 11 19 41 NGC4552 13 18 02 59.4 200.5 0.7 15.5 -7 1 2 7343 11 19 41 11 21 40 --- 13 20 02 59.2 201.4 0.7 16.2 112 R 1 6545 11 21 40 J1238+0723 13 20 02 54.4 198.0 0.7 13.4 -16 1 2 6545 11 21 40 11 22 40 =1235+076 13 21 02 54.3 198.4 0.7 13.7 44 R 1 6146 11 22 40 J1230+1223 13 21 02 58.6 204.0 0.8 18.1 -15 1 2 6146 11 22 40 11 23 40 =1228+126 13 22 02 58.6 204.4 0.9 18.4 45 R 1 5747 11 23 40 NGC4552 13 22 02 59.1 202.3 0.8 16.9 -7 1 2 5747 11 23 40 11 25 40 --- 13 24 02 58.9 203.2 0.8 17.5 112 R 1 4949 Schedule for VLBA_NL (Code Nl ) 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) ---------------------------------------------------------------------------------------- --- Thu 22 Jan 2004 Day 22 --- 11 25 40 J1238+0723 13 24 02 54.1 199.6 0.8 14.6 -16 1 2 4949 11 25 40 11 26 39 =1235+076 13 25 02 54.1 200.0 0.8 14.9 44 R 1 4551 11 26 39 J1230+1223 13 25 02 58.3 205.7 0.9 19.4 -15 1 2 4551 11 26 39 11 27 39 =1228+126 13 26 02 58.2 206.2 0.9 19.7 45 R 1 4152 11 27 39 J1225+1253 13 26 02 58.2 209.0 1.0 21.8 -8 1 2 4152 11 27 39 11 28 39 =M84 13 27 02 58.1 209.4 1.0 22.1 52 R 1 3753 11 28 39 J1207+1211 13 27 02 55.7 216.2 1.3 26.8 -11 1 2 3753 11 28 39 11 29 39 =1204+124 13 28 02 55.6 216.6 1.3 27.0 49 R 1 3354 11 29 39 J1222+0413 13 28 02 49.7 205.7 1.1 18.9 -18 1 2 3354 11 29 39 11 30 49 =1219+044 13 29 12 49.6 206.2 1.1 19.2 52 R 1 2888 11 30 49 J1300+1206 13 29 12 59.6 194.1 0.5 10.7 -26 1 2 2888 11 30 49 11 31 59 =1257+123 13 30 22 59.6 194.7 0.5 11.1 44 R 1 2423 11 31 59 J1238+0723 13 30 22 53.7 202.2 0.9 16.5 -18 1 2 2423 11 31 59 11 32 58 =1235+076 13 31 22 53.6 202.6 0.9 16.8 42 R 1 2024 11 32 58 J1230+1223 13 31 22 57.8 208.5 1.0 21.4 -14 1 2 2024 11 32 58 11 33 58 =1228+126 13 32 22 57.7 208.9 1.0 21.7 46 R 1 1625 11 33 58 NGC4552 13 32 22 58.3 206.9 0.9 20.2 -7 1 2 1625 11 33 58 11 35 58 --- 13 34 22 58.1 207.8 1.0 20.9 112 R 1 827 11 35 58 J1238+0723 13 34 22 53.4 203.8 0.9 17.7 -15 1 2 827 11 35 58 11 36 58 =1235+076 13 35 22 53.3 204.2 1.0 17.9 44 R 1 429 11 36 58 J1230+1223 13 35 22 57.4 210.2 1.1 22.6 -14 1 3 429 11 36 58 11 37 58 =1228+126 13 36 22 57.3 210.6 1.1 22.9 46 F 1 827 11 37 58 NGC4579 13 36 22 57.4 207.3 1.0 20.4 -8 1 3 827 11 37 58 11 39 57 --- 13 38 22 57.2 208.1 1.0 21.1 111 F 1 1625 11 39 57 J1238+0723 13 38 22 53.1 205.4 1.0 18.8 -14 1 3 1625 11 39 57 11 40 57 =1235+076 13 39 22 53.0 205.8 1.0 19.1 46 F 1 2024 11 40 57 J1230+1223 13 39 22 57.0 211.8 1.1 23.7 -14 1 3 2024 11 40 57 11 41 57 =1228+126 13 40 22 56.9 212.2 1.2 24.0 46 F 1 2423 Schedule for VLBA_NL (Code Nl ) 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) ---------------------------------------------------------------------------------------- --- Thu 22 Jan 2004 Day 22 --- 11 41 57 NGC4552 13 40 22 57.6 210.4 1.1 22.7 -7 1 3 2423 11 41 57 11 43 57 --- 13 42 22 57.4 211.2 1.1 23.3 113 F 1 3221 11 43 57 J1238+0723 13 42 22 52.8 206.9 1.1 19.9 -15 1 3 3221 11 43 57 11 44 56 =1235+076 13 43 22 52.7 207.3 1.1 20.2 45 F 1 3620 11 44 56 J1230+1223 13 43 22 56.6 213.5 1.2 24.9 -14 1 3 3620 11 44 56 11 45 56 =1228+126 13 44 22 56.5 213.9 1.2 25.2 46 F 1 4019 11 45 56 NGC4579 13 44 22 56.7 210.6 1.1 22.8 -8 1 3 4019 11 45 56 11 47 56 --- 13 46 22 56.5 211.5 1.1 23.4 112 F 1 4817 11 47 56 J1238+0723 13 46 22 52.4 208.4 1.1 21.0 -14 1 3 4817 11 47 56 11 48 56 =1235+076 13 47 22 52.3 208.8 1.2 21.3 46 F 1 5215 11 48 56 J1230+1223 13 47 22 56.2 215.1 1.3 26.0 -14 1 3 5215 11 48 56 11 49 56 =1228+126 13 48 22 56.1 215.4 1.3 26.3 46 F 1 5614 11 49 56 NGC4552 13 48 22 56.8 213.7 1.2 25.0 -7 1 3 5614 11 49 56 11 51 55 --- 13 50 22 56.6 214.5 1.2 25.6 112 F 1 6412 11 51 55 J1238+0723 13 50 22 52.1 210.0 1.2 22.1 -15 1 3 6412 11 51 55 11 52 55 =1235+076 13 51 22 52.0 210.3 1.2 22.3 45 F 1 6811 11 52 55 J1230+1223 13 51 22 55.8 216.6 1.3 27.1 -14 1 3 6811 11 52 55 11 53 55 =1228+126 13 52 22 55.7 217.0 1.4 27.4 46 F 1 7210 11 53 55 NGC4579 13 52 22 55.9 213.9 1.2 25.1 -8 1 3 7210 11 53 55 11 55 55 --- 13 54 22 55.7 214.6 1.3 25.7 112 F 1 8008 11 55 55 J1238+0723 13 54 22 51.7 211.4 1.3 23.1 -14 1 3 8008 11 55 55 11 56 55 =1235+076 13 55 22 51.6 211.8 1.3 23.4 46 F 1 8407 11 56 55 J1230+1223 13 55 22 55.3 218.1 1.4 28.1 -13 1 3 8407 11 56 55 11 57 54 =1228+126 13 56 22 55.2 218.5 1.4 28.4 46 F 1 8806 11 57 54 NGC4552 13 56 22 55.9 216.8 1.3 27.2 -7 1 3 8806 11 57 54 11 59 54 --- 13 58 22 55.7 217.6 1.4 27.8 112 F 1 9603 11 59 54 J1238+0723 13 58 22 51.3 212.9 1.3 24.1 -15 1 3 9603 11 59 54 12 00 54 =1235+076 13 59 22 51.2 213.3 1.4 24.4 45 F 1 10002 Schedule for VLBA_NL (Code Nl ) 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) ---------------------------------------------------------------------------------------- --- Thu 22 Jan 2004 Day 22 --- 12 00 54 J1230+1223 13 59 22 54.9 219.6 1.5 29.2 -13 1 3 10002 12 00 54 12 01 54 =1228+126 14 00 22 54.7 220.0 1.5 29.4 46 F 1 10401 12 01 54 NGC4579 14 00 22 55.0 217.0 1.4 27.3 -8 1 3 10401 12 01 54 12 03 53 --- 14 02 22 54.8 217.7 1.4 27.8 112 F 1 11199 12 03 53 J1238+0723 14 02 22 50.9 214.3 1.4 25.1 -14 1 3 11199 12 03 53 12 04 53 =1235+076 14 03 22 50.8 214.7 1.4 25.3 46 F 1 11598 12 04 53 J1230+1223 14 03 22 54.4 221.1 1.5 30.1 -13 1 3 11598 12 04 53 12 05 53 =1228+126 14 04 22 54.3 221.5 1.6 30.4 47 F 1 11997 12 05 53 J1225+1253 14 04 22 53.9 224.0 1.7 32.1 -8 1 3 11997 12 05 53 12 06 53 =M84 14 05 22 53.8 224.3 1.7 32.3 52 F 1 12396 12 06 53 J1207+1211 14 05 22 50.8 229.6 2.0 35.5 -12 1 3 12396 12 06 53 12 07 53 =1204+124 14 06 22 50.7 229.9 2.0 35.7 48 F 1 12795 12 07 53 J1222+0413 14 06 22 45.9 218.8 1.7 27.9 -16 1 3 12795 12 07 53 12 09 03 =1219+044 14 07 32 45.7 219.2 1.7 28.2 54 F 1 13260 12 09 03 J1300+1206 14 07 32 56.9 211.2 1.1 23.3 -28 1 3 13260 12 09 03 12 10 12 =1257+123 14 08 42 56.8 211.7 1.1 23.6 41 F 1 13725 12 10 12 J1238+0723 14 08 42 50.2 216.6 1.5 26.6 -19 1 3 13725 12 10 12 12 11 12 =1235+076 14 09 42 50.1 216.9 1.5 26.8 41 F 1 14124 12 11 12 J1230+1223 14 09 42 53.6 223.4 1.6 31.6 -13 1 3 14124 12 11 12 12 12 12 =1228+126 14 10 42 53.5 223.7 1.7 31.8 47 F 1 14523 12 12 12 NGC4552 14 10 42 54.2 222.2 1.6 30.8 -7 1 3 14523 12 12 12 12 14 12 --- 14 12 42 54.0 222.9 1.6 31.3 112 F 1 15321 12 14 12 J1238+0723 14 12 42 49.7 217.9 1.6 27.5 -14 1 3 15321 12 14 12 12 15 12 =1235+076 14 13 42 49.6 218.3 1.6 27.8 45 F 1 15720 12 15 12 J1230+1223 14 13 42 53.1 224.8 1.7 32.5 -13 1 3 15720 12 15 12 12 16 11 =1228+126 14 14 42 52.9 225.1 1.7 32.7 47 F 1 16119 12 16 11 NGC4552 14 14 42 53.7 223.6 1.6 31.8 -8 1 3 16119 12 16 11 12 18 11 --- 14 16 42 53.4 224.3 1.7 32.2 112 F 1 16917 Schedule for VLBA_NL (Code Nl ) 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) ---------------------------------------------------------------------------------------- --- Thu 22 Jan 2004 Day 22 --- 12 18 11 J1238+0723 14 16 42 49.3 219.3 1.6 28.4 -14 1 3 16917 12 18 11 12 19 11 =1235+076 14 17 42 49.2 219.6 1.7 28.7 46 F 1 17316 12 19 11 J1230+1223 14 17 42 52.5 226.1 1.8 33.4 -13 1 4 17316 12 19 11 12 20 11 =1228+126 14 18 42 52.4 226.4 1.8 33.6 47 R 1 16917 12 20 11 NGC4552 14 18 42 53.2 225.0 1.7 32.7 -8 1 4 16917 12 20 11 12 22 10 --- 14 20 42 52.9 225.6 1.7 33.1 112 R 1 16119 12 22 10 J1238+0723 14 20 42 48.8 220.6 1.7 29.3 -14 1 4 16119 12 22 10 12 23 10 =1235+076 14 21 42 48.7 220.9 1.7 29.5 46 R 1 15720 12 23 10 J1230+1223 14 21 42 52.0 227.4 1.8 34.2 -13 1 4 15720 12 23 10 12 24 10 =1228+126 14 22 42 51.9 227.8 1.9 34.4 47 R 1 15321 12 24 10 NGC4552 14 22 42 52.6 226.3 1.8 33.5 -8 1 4 15321 12 24 10 12 26 10 --- 14 24 42 52.4 227.0 1.8 34.0 112 R 1 14523 12 26 10 J1238+0723 14 24 42 48.3 221.9 1.8 30.2 -14 1 4 14523 12 26 10 12 27 10 =1235+076 14 25 42 48.2 222.2 1.8 30.4 46 R 1 14124 12 27 10 J1230+1223 14 25 42 51.4 228.7 1.9 35.0 -13 1 4 14124 12 27 10 12 28 09 =1228+126 14 26 42 51.3 229.1 1.9 35.2 47 R 1 13725 12 28 09 NGC4552 14 26 42 52.1 227.6 1.8 34.4 -8 1 4 13725 12 28 09 12 30 09 --- 14 28 42 51.8 228.3 1.9 34.8 112 R 1 12928 12 30 09 J1238+0723 14 28 42 47.8 223.2 1.8 31.0 -14 1 4 12928 12 30 09 12 31 09 =1235+076 14 29 42 47.7 223.5 1.9 31.2 46 R 1 12529 12 31 09 J1230+1223 14 29 42 50.9 230.0 2.0 35.8 -12 1 4 12529 12 31 09 12 32 09 =1228+126 14 30 42 50.7 230.3 2.0 36.0 47 R 1 12130 12 32 09 NGC4552 14 30 42 51.5 228.9 1.9 35.2 -8 1 4 12130 12 32 09 12 34 08 --- 14 32 42 51.3 229.6 1.9 35.6 112 R 1 11332 12 34 08 J1238+0723 14 32 42 47.3 224.4 1.9 31.8 -14 1 4 11332 12 34 08 12 35 08 =1235+076 14 33 42 47.2 224.7 1.9 32.0 46 R 1 10933 12 35 08 J1230+1223 14 33 42 50.3 231.2 2.0 36.5 -12 1 4 10933 12 35 08 12 36 08 =1228+126 14 34 42 50.1 231.5 2.1 36.7 48 R 1 10534 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) * NGC4552 12 33 08.294368 * 12 35 39.808130 12 35 52.021765 12 49 53.60394 * 12 33 22.84480 12 31 57.42437 From catalog imbedded in main SCHED input file. * NGC4579 12 35 11.999085 * 12 37 43.522200 12 37 55.718514 12 05 34.86307 * 11 49 05.48800 11 47 40.34080 From catalog imbedded in main SCHED input file. * J0927+3902 09 23 55.319195 * 09 27 03.013916 09 27 19.280752 0923+392 39 15 23.56655 * 39 02 20.85195 39 01 15.76037 4C39.25 /home/filehost/cwalker/sched/catalogs/sources.vlba J0927+39 ICRF - Ext.1 Source - 1998 IERS Annual Report * J1207+1211 12 04 39.241410 * 12 07 12.624537 12 07 25.135819 1204+124 12 28 27.54217 * 12 11 45.84768 12 10 20.60318 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1222+0413 12 19 49.255028 * 12 22 22.549618 12 22 34.907842 1219+044 04 29 53.60851 * 04 13 15.77630 04 11 52.82554 J1222+04 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J1225+1253 12 22 31.582013 * 12 25 03.743329 12 25 16.069452 M84 13 09 49.76897 * 12 53 13.13958 12 51 47.49890 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J1230+1223 12 28 17.569280 * 12 30 49.423382 12 31 01.689177 1228+126 12 40 01.74911 * 12 23 28.04393 12 22 02.59777 3C274 /home/filehost/cwalker/sched/catalogs/sources.vlba J1230+12 ICRF - Ext.1 Source - 1998 IERS Annual Report * J1238+0723 12 35 30.091498 * 12 38 02.445640 12 38 14.668714 1235+076 07 39 51.00350 * 07 23 21.81743 07 21 58.08337 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1300+1206 12 57 31.849187 * 13 00 01.938854 13 00 13.897653 1257+123 12 22 31.36755 * 12 06 22.11904 12 04 57.77655 /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) NGC4552 117.5 NGC4579 116.9 J0927+3902 155.4 J1207+1211 124.1 J1222+0413 118.1 J1225+1253 120.1 J1230+1223 118.6 J1238+0723 115.5 J1300+1206 111.7 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