COVER INFORMATION Station: VLBA_NL (Code Nl ) Experiment: BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs Exp. Code: bn021db 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 finder: J0927+3902; else try J1153+4931 Phase-referencing used for all sources This subscript for NGC3998. Run up to 6 times 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) ---------------------------------------------------------------------------------------- --- Mon 19 Jan 2004 Day 19 --- 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 19 49 J1148+5254 12 06 11 78.5 -13.0 0.3 163.9 0 1 1 0 10 19 49 10 21 49 =1146+531 12 08 11 78.4 -14.4 0.3 162.0 120 F 1 798 10 21 49 J1158+4825 12 08 11 83.2 -13.4 0.2 164.9 -15 1 1 798 10 21 49 10 22 49 =1155+486 12 09 11 83.1 -14.7 0.2 163.4 44 F 1 1197 10 22 49 NGC3998 12 09 11 76.2 -6.6 0.2 171.3 -20 1 1 1197 10 22 49 10 24 48 --- 12 11 11 76.2 -7.8 0.2 169.8 100 F 1 1995 10 24 48 J1148+5254 12 11 11 78.3 -16.6 0.4 159.4 -12 1 1 1995 10 24 48 10 25 48 =1146+531 12 12 11 78.2 -17.3 0.4 158.5 48 F 1 2393 10 25 48 J1158+4825 12 12 11 83.0 -18.6 0.2 159.0 -15 1 1 2393 10 25 48 10 26 48 =1155+486 12 13 11 82.9 -19.9 0.2 157.5 44 F 1 2792 10 26 48 NGC3998 12 13 11 76.1 -8.9 0.3 168.2 -20 1 1 2792 10 26 48 10 28 48 --- 12 15 11 76.1 -10.1 0.3 166.7 100 F 1 3590 10 28 48 J1148+5254 12 15 11 78.1 -19.3 0.4 155.9 -12 1 1 3590 10 28 48 10 29 47 =1146+531 12 16 11 78.0 -19.9 0.5 155.1 48 F 1 3989 10 29 47 J1158+4825 12 16 11 82.7 -23.5 0.3 153.4 -15 1 1 3989 10 29 47 10 30 47 =1155+486 12 17 11 82.6 -24.6 0.3 152.1 44 F 1 4388 10 30 47 NGC3998 12 17 11 76.0 -11.2 0.3 165.2 -19 1 1 4388 10 30 47 10 32 47 --- 12 19 11 75.9 -12.3 0.4 163.7 100 F 1 5186 10 32 47 J1148+5254 12 19 11 77.8 -21.9 0.5 152.6 -12 1 1 5186 10 32 47 10 33 47 =1146+531 12 20 11 77.7 -22.5 0.5 151.8 47 F 1 5585 10 33 47 J1158+4825 12 20 11 82.4 -28.0 0.4 148.2 -15 1 1 5585 10 33 47 10 34 47 =1155+486 12 21 11 82.3 -29.0 0.4 147.0 45 F 1 5984 10 34 47 NGC3998 12 21 11 75.8 -13.4 0.4 162.2 -19 1 1 5984 10 34 47 10 36 46 --- 12 23 11 75.7 -14.5 0.4 160.7 101 F 1 6781 10 36 46 J1148+5254 12 23 11 77.5 -24.4 0.6 149.4 -13 1 1 6781 10 36 46 10 37 46 =1146+531 12 24 11 77.4 -24.9 0.6 148.6 47 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) ---------------------------------------------------------------------------------------- --- Mon 19 Jan 2004 Day 19 --- 10 37 46 J1158+4825 12 24 11 82.0 -32.0 0.4 143.5 -15 1 1 7180 10 37 46 10 38 46 =1155+486 12 25 11 81.9 -32.9 0.4 142.4 45 F 1 7579 10 38 46 NGC3998 12 25 11 75.6 -15.6 0.5 159.3 -18 1 1 7579 10 38 46 10 40 46 --- 12 27 11 75.5 -16.7 0.5 157.8 101 F 1 8377 10 40 46 J1148+5254 12 27 11 77.2 -26.7 0.6 146.3 -13 1 1 8377 10 40 46 10 41 46 =1146+531 12 28 11 77.1 -27.2 0.7 145.5 47 F 1 8776 10 41 46 J1158+4825 12 28 11 81.6 -35.6 0.5 139.1 -15 1 1 8776 10 41 46 10 42 45 =1155+486 12 29 11 81.5 -36.5 0.5 138.1 45 F 1 9175 10 42 45 J1128+5925 12 29 11 70.0 -23.0 1.0 145.1 -29 1 1 9175 10 42 45 10 44 05 =1125+596 12 30 31 69.9 -23.4 1.0 144.5 51 F 1 9707 10 44 05 J1208+5441 12 30 31 76.6 -13.5 0.4 162.5 -19 1 1 9707 10 44 05 10 45 05 =1206+549 12 31 31 76.6 -14.1 0.4 161.7 40 F 1 10106 10 45 05 J1146+5356 12 31 31 75.8 -27.6 0.7 144.1 -15 1 1 10106 10 45 05 10 46 05 =1144+542 12 32 31 75.7 -28.1 0.8 143.4 45 F 1 10505 10 46 05 J1153+4931 12 32 31 79.7 -38.0 0.6 135.1 -14 1 1 10505 10 46 05 10 47 05 =1150+497 12 33 31 79.6 -38.6 0.7 134.3 46 F 1 10903 10 47 05 J1148+5254 12 33 31 76.6 -30.1 0.7 141.7 -12 1 1 10903 10 47 05 10 48 04 =1146+531 12 34 31 76.5 -30.6 0.8 141.0 48 F 1 11302 10 48 04 J1158+4825 12 34 31 80.9 -40.6 0.6 133.1 -15 1 1 11302 10 48 04 10 49 04 =1155+486 12 35 31 80.7 -41.3 0.6 132.2 45 F 1 11701 10 49 04 NGC3998 12 35 31 75.0 -20.9 0.6 152.0 -20 1 1 11701 10 49 04 10 51 04 --- 12 37 31 74.9 -21.9 0.7 150.7 100 F 1 12499 10 51 04 J1148+5254 12 37 31 76.2 -32.1 0.8 139.0 -13 1 1 12499 10 51 04 10 52 04 =1146+531 12 38 31 76.1 -32.6 0.8 138.3 47 F 1 12898 10 52 04 J1158+4825 12 38 31 80.4 -43.3 0.7 129.7 -14 1 1 12898 10 52 04 10 53 04 =1155+486 12 39 31 80.2 -43.9 0.7 128.9 45 F 1 13297 10 53 04 NGC3998 12 39 31 74.8 -22.8 0.7 149.4 -20 1 1 13297 10 53 04 10 55 03 --- 12 41 31 74.6 -23.7 0.7 148.1 100 F 1 14095 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) ---------------------------------------------------------------------------------------- --- Mon 19 Jan 2004 Day 19 --- 10 55 03 J1148+5254 12 41 31 75.8 -33.9 0.9 136.4 -13 1 1 14095 10 55 03 10 56 03 =1146+531 12 42 31 75.7 -34.4 0.9 135.8 47 F 1 14494 10 56 03 J1158+4825 12 42 31 79.8 -45.7 0.7 126.6 -14 1 1 14494 10 56 03 10 57 03 =1155+486 12 43 31 79.7 -46.2 0.7 125.8 46 F 1 14893 10 57 03 NGC3998 12 43 31 74.5 -24.6 0.8 146.8 -20 1 1 14893 10 57 03 10 59 03 --- 12 45 31 74.3 -25.5 0.8 145.5 99 F 1 15690 10 59 03 J1148+5254 12 45 31 75.4 -35.6 0.9 133.9 -13 1 1 15690 10 59 03 11 00 03 =1146+531 12 46 31 75.3 -36.1 1.0 133.3 47 F 1 16089 11 00 03 J1158+4825 12 46 31 79.3 -47.8 0.8 123.7 -14 1 1 16089 11 00 03 11 01 02 =1155+486 12 47 31 79.1 -48.2 0.8 123.1 46 F 1 16488 11 01 02 NGC3998 12 47 31 74.1 -26.3 0.8 144.3 -21 1 1 16488 11 01 02 11 03 02 --- 12 49 31 74.0 -27.2 0.9 143.1 99 F 1 17286 11 03 02 J1148+5254 12 49 31 75.0 -37.3 1.0 131.6 -13 1 2 17286 11 03 02 11 04 02 =1146+531 12 50 31 74.8 -37.6 1.0 131.0 47 R 1 16887 11 04 02 J1158+4825 12 50 31 78.7 -49.6 0.9 121.2 -14 1 2 16887 11 04 02 11 05 02 =1155+486 12 51 31 78.6 -50.1 0.9 120.5 46 R 1 16488 11 05 02 NGC3998 12 51 31 73.8 -28.0 0.9 141.9 -21 1 2 16488 11 05 02 11 07 01 --- 12 53 31 73.6 -28.8 0.9 140.7 99 R 1 15690 11 07 01 J1148+5254 12 53 31 74.5 -38.7 1.1 129.3 -13 1 2 15690 11 07 01 11 08 01 =1146+531 12 54 31 74.4 -39.1 1.1 128.8 47 R 1 15291 11 08 01 J1158+4825 12 54 31 78.2 -51.3 0.9 118.8 -14 1 2 15291 11 08 01 11 09 01 =1155+486 12 55 31 78.0 -51.7 0.9 118.2 46 R 1 14893 11 09 01 J1128+5925 12 55 31 67.8 -30.0 1.5 132.9 -26 1 2 14893 11 09 01 11 10 21 =1125+596 12 56 51 67.7 -30.3 1.5 132.3 53 R 1 14361 11 10 21 J1208+5441 12 56 51 74.9 -27.3 0.8 143.7 -20 1 2 14361 11 10 21 11 11 21 =1206+549 12 57 51 74.8 -27.7 0.8 143.1 39 R 1 13962 11 11 21 J1146+5356 12 57 51 73.1 -38.0 1.2 128.7 -13 1 2 13962 11 11 21 11 12 20 =1144+542 12 58 51 73.0 -38.4 1.2 128.2 47 R 1 13563 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) ---------------------------------------------------------------------------------------- --- Mon 19 Jan 2004 Day 19 --- 11 12 20 J1153+4931 12 58 51 76.3 -50.2 1.1 118.1 -14 1 2 13563 11 12 20 11 13 20 =1150+497 12 59 51 76.1 -50.5 1.1 117.6 46 R 1 13164 11 15 22 J0927+3902 13 01 53 49.7 -75.4 3.6 68.3 63 1 2 13164 11 15 22 11 18 22 =0923+392 13 04 53 49.2 -75.1 3.6 68.1 180 R 1 11967 11 18 22 J1148+5254 13 04 53 73.1 -42.4 1.3 123.6 -54 1 2 11967 11 18 22 11 20 51 =1146+531 13 07 23 72.8 -43.1 1.3 122.4 96 R 1 10970 11 20 51 J1158+4825 13 07 23 76.2 -55.4 1.1 112.3 -14 1 2 10970 11 20 51 11 21 51 =1155+486 13 08 23 76.1 -55.7 1.2 111.9 46 R 1 10571 11 21 51 NGC3998 13 08 23 72.2 -34.0 1.2 132.7 -20 1 2 10571 11 21 51 11 23 51 --- 13 10 23 72.0 -34.6 1.2 131.7 99 R 1 9773 11 23 51 J1148+5254 13 10 23 72.4 -43.9 1.4 121.0 -12 1 2 9773 11 23 51 11 24 50 =1146+531 13 11 23 72.3 -44.1 1.4 120.6 48 R 1 9374 11 24 50 J1158+4825 13 11 23 75.6 -56.4 1.2 110.6 -14 1 2 9374 11 24 50 11 25 50 =1155+486 13 12 23 75.5 -56.7 1.2 110.2 46 R 1 8975 11 25 50 NGC3998 13 12 23 71.8 -35.2 1.2 130.7 -20 1 2 8975 11 25 50 11 27 50 --- 13 14 23 71.5 -35.8 1.3 129.7 99 R 1 8178 11 27 50 J1148+5254 13 14 23 71.9 -44.9 1.4 119.3 -12 1 2 8178 11 27 50 11 28 50 =1146+531 13 15 23 71.8 -45.1 1.4 118.9 48 R 1 7779 11 28 50 J1158+4825 13 15 23 75.0 -57.3 1.3 109.0 -14 1 2 7779 11 28 50 11 29 50 =1155+486 13 16 23 74.8 -57.5 1.3 108.6 46 R 1 7380 11 29 50 NGC3998 13 16 23 71.3 -36.4 1.3 128.8 -20 1 2 7380 11 29 50 11 31 49 --- 13 18 23 71.1 -36.9 1.3 127.9 100 R 1 6582 11 31 49 J1148+5254 13 18 23 71.4 -45.8 1.5 117.6 -12 1 2 6582 11 31 49 11 32 49 =1146+531 13 19 23 71.2 -46.0 1.5 117.2 48 R 1 6183 11 32 49 J1158+4825 13 19 23 74.4 -58.1 1.3 107.5 -14 1 2 6183 11 32 49 11 33 49 =1155+486 13 20 23 74.2 -58.3 1.4 107.1 46 R 1 5784 11 33 49 NGC3998 13 20 23 70.9 -37.4 1.4 127.0 -20 1 2 5784 11 33 49 11 35 49 --- 13 22 23 70.6 -38.0 1.4 126.1 100 R 1 4986 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) ---------------------------------------------------------------------------------------- --- Mon 19 Jan 2004 Day 19 --- 11 35 49 J1148+5254 13 22 23 70.8 -46.6 1.6 116.0 -12 1 2 4986 11 35 49 11 36 48 =1146+531 13 23 23 70.7 -46.8 1.6 115.7 48 R 1 4587 11 36 48 J1158+4825 13 23 23 73.7 -58.8 1.4 106.1 -14 1 2 4587 11 36 48 11 37 48 =1155+486 13 24 23 73.6 -59.0 1.4 105.7 46 R 1 4189 11 37 48 NGC3998 13 24 23 70.4 -38.5 1.4 125.2 -20 1 2 4189 11 37 48 11 39 48 --- 13 26 23 70.2 -38.9 1.5 124.3 100 R 1 3391 11 39 48 J1148+5254 13 26 23 70.3 -47.4 1.6 114.5 -12 1 2 3391 11 39 48 11 40 48 =1146+531 13 27 23 70.1 -47.6 1.6 114.1 48 R 1 2992 11 40 48 J1158+4825 13 27 23 73.1 -59.4 1.5 104.7 -14 1 2 2992 11 40 48 11 41 48 =1155+486 13 28 23 72.9 -59.6 1.5 104.4 46 R 1 2593 11 41 48 J1128+5925 13 28 23 64.5 -36.2 2.0 120.2 -23 1 2 2593 11 41 48 11 43 07 =1125+596 13 29 43 64.3 -36.4 2.0 119.7 57 R 1 2061 11 43 07 J1208+5441 13 29 43 71.5 -38.9 1.3 125.9 -20 1 2 2061 11 43 07 11 44 07 =1206+549 13 30 43 71.4 -39.2 1.4 125.5 39 R 1 1662 11 44 07 J1146+5356 13 30 43 69.0 -45.9 1.7 114.7 -11 1 2 1662 11 44 07 11 45 07 =1144+542 13 31 43 68.8 -46.0 1.7 114.3 49 R 1 1263 11 45 07 J1153+4931 13 31 43 71.3 -57.3 1.6 105.0 -13 1 2 1263 11 45 07 11 46 07 =1150+497 13 32 43 71.1 -57.4 1.7 104.7 46 R 1 864 11 46 07 J1148+5254 13 32 43 69.4 -48.5 1.7 112.2 -12 1 2 864 11 46 07 11 47 07 =1146+531 13 33 43 69.3 -48.7 1.7 111.9 48 R 1 465 11 47 07 J1158+4825 13 33 43 72.1 -60.3 1.6 102.8 -14 1 2 465 11 47 07 11 48 07 =1155+486 13 34 43 71.9 -60.4 1.6 102.5 46 R 1 66 11 48 07 NGC3998 13 34 43 69.2 -40.8 1.6 120.9 -19 1 3 66 11 48 07 11 50 06 --- 13 36 43 68.9 -41.2 1.6 120.1 101 F 1 864 11 50 06 J1148+5254 13 36 43 68.8 -49.1 1.8 110.8 -11 1 3 864 11 50 06 11 51 06 =1146+531 13 37 43 68.7 -49.3 1.8 110.5 49 F 1 1263 11 51 06 J1158+4825 13 37 43 71.4 -60.7 1.7 101.6 -14 1 3 1263 11 51 06 11 52 06 =1155+486 13 38 43 71.2 -60.8 1.7 101.3 46 F 1 1662 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) ---------------------------------------------------------------------------------------- --- Mon 19 Jan 2004 Day 19 --- 11 52 06 NGC3998 13 38 43 68.7 -41.6 1.7 119.3 -19 1 3 1662 11 52 06 11 54 06 --- 13 40 43 68.4 -41.9 1.7 118.6 101 F 1 2460 11 54 06 J1148+5254 13 40 43 68.3 -49.7 1.9 109.5 -11 1 3 2460 11 54 06 11 55 05 =1146+531 13 41 43 68.1 -49.8 1.9 109.2 49 F 1 2859 11 55 05 J1158+4825 13 41 43 70.8 -61.1 1.7 100.5 -14 1 3 2859 11 55 05 11 56 05 =1155+486 13 42 43 70.6 -61.2 1.7 100.2 46 F 1 3258 11 56 05 NGC3998 13 42 43 68.2 -42.3 1.7 117.8 -19 1 3 3258 11 56 05 11 58 05 --- 13 44 43 67.9 -42.6 1.8 117.1 101 F 1 4056 11 58 05 J1148+5254 13 44 43 67.7 -50.2 1.9 108.2 -11 1 3 4056 11 58 05 11 59 05 =1146+531 13 45 43 67.6 -50.3 1.9 107.9 49 F 1 4454 11 59 05 J1158+4825 13 45 43 70.1 -61.4 1.8 99.4 -13 1 3 4454 11 59 05 12 00 05 =1155+486 13 46 43 69.9 -61.5 1.8 99.1 46 F 1 4853 12 00 05 NGC3998 13 46 43 67.7 -43.0 1.8 116.3 -18 1 3 4853 12 00 05 12 02 04 --- 13 48 43 67.4 -43.3 1.8 115.6 101 F 1 5651 12 02 04 J1148+5254 13 48 43 67.1 -50.7 2.0 107.0 -11 1 3 5651 12 02 04 12 03 04 =1146+531 13 49 43 67.0 -50.8 2.0 106.7 49 F 1 6050 12 03 04 J1158+4825 13 49 43 69.4 -61.7 1.9 98.4 -13 1 3 6050 12 03 04 12 04 04 =1155+486 13 50 43 69.3 -61.8 1.9 98.1 47 F 1 6449 12 04 04 NGC3998 13 50 43 67.2 -43.6 1.9 114.9 -18 1 3 6449 12 04 04 12 06 04 --- 13 52 43 66.9 -43.9 1.9 114.2 102 F 1 7247 12 06 04 J1148+5254 13 52 43 66.6 -51.1 2.1 105.8 -11 1 3 7247 12 06 04 12 07 04 =1146+531 13 53 43 66.4 -51.2 2.1 105.5 49 F 1 7646 12 07 04 J1158+4825 13 53 43 68.8 -62.0 1.9 97.4 -13 1 3 7646 12 07 04 12 08 03 =1155+486 13 54 43 68.6 -62.1 1.9 97.2 47 F 1 8045 12 08 03 J1128+5925 13 54 43 61.4 -39.4 2.4 111.7 -21 1 3 8045 12 08 03 12 09 23 =1125+596 13 56 03 61.3 -39.5 2.5 111.3 59 F 1 8577 12 09 23 J1208+5441 13 56 03 68.2 -44.5 1.8 115.3 -20 1 3 8577 12 09 23 12 10 23 =1206+549 13 57 03 68.1 -44.7 1.8 114.9 40 F 1 8975 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) ---------------------------------------------------------------------------------------- --- Mon 19 Jan 2004 Day 19 --- 12 10 23 J1146+5356 13 57 03 65.3 -49.3 2.2 106.1 -12 1 3 8975 12 10 23 12 11 23 =1144+542 13 58 03 65.2 -49.4 2.2 105.8 48 F 1 9374 12 11 23 J1153+4931 13 58 03 67.1 -59.6 2.1 97.8 -13 1 3 9374 12 11 23 12 12 23 =1150+497 13 59 03 67.0 -59.7 2.1 97.6 47 F 1 9773 12 12 23 J1148+5254 13 59 03 65.6 -51.7 2.2 104.0 -11 1 3 9773 12 12 23 12 13 22 =1146+531 14 00 03 65.5 -51.8 2.2 103.7 49 F 1 10172 12 13 22 J1158+4825 14 00 03 67.7 -62.3 2.0 95.9 -13 1 3 10172 12 13 22 12 14 22 =1155+486 14 01 03 67.6 -62.4 2.0 95.7 47 F 1 10571 12 14 22 NGC3998 14 01 03 65.8 -45.1 2.0 111.5 -18 1 3 10571 12 14 22 12 16 22 --- 14 03 03 65.6 -45.3 2.1 110.8 102 F 1 11369 12 16 22 J1148+5254 14 03 03 65.0 -52.1 2.2 102.9 -10 1 3 11369 12 16 22 12 17 22 =1146+531 14 04 03 64.9 -52.2 2.2 102.6 49 F 1 11768 12 17 22 J1158+4825 14 04 03 67.1 -62.5 2.1 95.0 -13 1 3 11768 12 17 22 12 18 22 =1155+486 14 05 03 66.9 -62.5 2.1 94.8 47 F 1 12167 12 18 22 NGC3998 14 05 03 65.3 -45.6 2.1 110.2 -17 1 3 12167 12 18 22 12 20 21 --- 14 07 03 65.0 -45.8 2.1 109.6 102 F 1 12964 12 20 21 J1148+5254 14 07 03 64.5 -52.4 2.3 101.8 -10 1 3 12964 12 20 21 12 21 21 =1146+531 14 08 03 64.3 -52.4 2.3 101.5 49 F 1 13363 12 21 21 J1158+4825 14 08 03 66.4 -62.6 2.2 94.1 -13 1 3 13363 12 21 21 12 22 21 =1155+486 14 09 03 66.3 -62.6 2.2 93.9 47 F 1 13762 12 22 21 NGC3998 14 09 03 64.8 -46.0 2.2 109.0 -17 1 3 13762 12 22 21 12 24 21 --- 14 11 03 64.5 -46.2 2.2 108.4 103 F 1 14560 12 24 21 J1148+5254 14 11 03 63.9 -52.6 2.4 100.8 -10 1 3 14560 12 24 21 12 25 21 =1146+531 14 12 03 63.7 -52.7 2.4 100.5 50 F 1 14959 12 25 21 J1158+4825 14 12 03 65.8 -62.7 2.2 93.3 -13 1 3 14959 12 25 21 12 26 20 =1155+486 14 13 03 65.6 -62.7 2.2 93.1 47 F 1 15358 12 26 20 NGC3998 14 13 03 64.2 -46.4 2.2 107.8 -17 1 3 15358 12 26 20 12 28 20 --- 14 15 03 64.0 -46.6 2.3 107.2 103 F 1 16156 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) ---------------------------------------------------------------------------------------- --- Mon 19 Jan 2004 Day 19 --- 12 28 20 J1148+5254 14 15 03 63.3 -52.9 2.4 99.8 -10 1 3 16156 12 28 20 12 29 20 =1146+531 14 16 03 63.1 -52.9 2.4 99.5 50 F 1 16555 12 29 20 J1158+4825 14 16 03 65.1 -62.8 2.3 92.5 -13 1 3 16555 12 29 20 12 30 20 =1155+486 14 17 03 64.9 -62.8 2.3 92.3 47 F 1 16954 12 30 20 NGC3998 14 17 03 63.7 -46.8 2.3 106.6 -17 1 4 16954 12 30 20 12 32 19 --- 14 19 03 63.4 -47.0 2.3 106.0 103 R 1 17449 12 32 19 J1148+5254 14 19 03 62.7 -53.1 2.5 98.8 -10 1 4 17449 12 32 19 12 33 19 =1146+531 14 20 03 62.5 -53.1 2.5 98.5 50 R 1 17050 12 33 19 J1158+4825 14 20 03 64.4 -62.9 2.4 91.7 -12 1 4 17050 12 33 19 12 34 19 =1155+486 14 21 03 64.3 -62.9 2.4 91.5 47 R 1 16651 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) * NGC3998 * 11 55 20.900000 11 57 56.086142 11 58 09.569341 * 55 43 54.99980 55 27 13.26837 55 25 39.36490 From catalog imbedded in main SCHED input file. * J0927+3902 09 23 55.319195 * 09 27 03.013916 09 27 19.177190 0923+392 39 15 23.56655 * 39 02 20.85195 39 01 15.63523 4C39.25 /home/filehost/cwalker/sched/catalogs/sources.vlba J0927+39 ICRF - Ext.1 Source - 1998 IERS Annual Report * J1128+5925 11 25 23.181659 * 11 28 13.340684 11 28 28.462204 1125+596 59 41 46.14452 * 59 25 14.79921 59 23 43.09203 J1128+59 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J1146+5356 11 44 04.579651 * 11 46 44.204327 11 46 58.055036 1144+542 54 13 22.89875 * 53 56 43.08305 53 55 10.16563 J1146+53 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1148+5254 11 46 18.018988 * 11 48 56.569015 11 49 10.273525 1146+531 53 11 05.71107 * 52 54 25.32333 52 52 52.36836 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1153+4931 11 50 47.999842 * 11 53 24.466625 11 53 37.845132 1150+497 49 47 50.09411 * 49 31 08.83014 49 29 36.03996 J1153+49 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J1158+4825 11 55 52.072738 * 11 58 26.769514 11 58 39.936203 1155+486 48 41 58.01330 * 48 25 16.22922 48 23 43.29650 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1208+5441 12 06 23.662549 * 12 08 54.256393 12 09 07.254268 1206+549 54 58 39.44535 * 54 41 58.16477 54 40 23.78786 /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) NGC3998 124.3 J0927+3902 154.1 J1128+5925 126.8 J1146+5356 126.3 J1148+5254 126.2 J1153+4931 126.3 J1158+4825 125.7 J1208+5441 122.9 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