COVER INFORMATION Station: VLBA_OV (Code Ov ) Experiment: BN021 - VLBA fmt 6cm phase ref monitoring of LLAGNs Exp. Code: bn021da 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 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_OV (Code Ov ) 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 23 Jan 2003 Day 23 --- 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 03 08 J1148+5254 10 19 22 67.9 37.7 -1.5 -126.1 0 1 1 0 10 03 08 10 05 08 =1146+531 10 21 22 68.1 37.3 -1.5 -127.0 120 F 1 798 10 05 08 J1158+4825 10 21 22 69.1 50.0 -1.6 -113.3 -14 1 1 798 10 05 08 10 06 08 =1155+486 10 22 22 69.2 49.8 -1.6 -113.6 45 F 1 1197 10 06 08 NGC3998 10 22 22 65.7 33.9 -1.6 -128.4 -17 1 1 1197 10 06 08 10 08 08 --- 10 24 22 65.9 33.5 -1.6 -129.2 103 F 1 1995 10 08 08 J1148+5254 10 24 22 68.5 36.5 -1.4 -128.3 -11 1 1 1995 10 08 08 10 09 07 =1146+531 10 25 22 68.6 36.3 -1.4 -128.7 49 F 1 2393 10 09 07 J1158+4825 10 25 22 69.7 49.2 -1.6 -114.7 -15 1 1 2393 10 09 07 10 10 07 =1155+486 10 26 22 69.9 49.0 -1.5 -115.1 45 F 1 2792 10 10 07 NGC3998 10 26 22 66.1 33.1 -1.5 -130.0 -17 1 1 2792 10 10 07 10 12 07 --- 10 28 22 66.3 32.6 -1.5 -130.9 103 F 1 3590 10 12 07 J1148+5254 10 28 22 69.0 35.5 -1.3 -130.0 -11 1 1 3590 10 12 07 10 13 07 =1146+531 10 29 22 69.1 35.2 -1.3 -130.5 49 F 1 3989 10 13 07 J1158+4825 10 29 22 70.3 48.4 -1.5 -116.3 -15 1 1 3989 10 13 07 10 14 07 =1155+486 10 30 22 70.5 48.2 -1.5 -116.7 45 F 1 4388 10 14 07 NGC3998 10 30 22 66.5 32.1 -1.5 -131.7 -17 1 1 4388 10 14 07 10 16 06 --- 10 32 22 66.7 31.7 -1.4 -132.5 103 F 1 5186 10 16 06 J1148+5254 10 32 22 69.4 34.4 -1.3 -131.9 -11 1 1 5186 10 16 06 10 17 06 =1146+531 10 33 22 69.5 34.1 -1.3 -132.3 48 F 1 5585 10 17 06 J1158+4825 10 33 22 70.9 47.5 -1.4 -117.9 -15 1 1 5585 10 17 06 10 18 06 =1155+486 10 34 22 71.0 47.2 -1.4 -118.3 45 F 1 5984 10 18 06 NGC3998 10 34 22 66.9 31.2 -1.4 -133.4 -17 1 1 5984 10 18 06 10 20 06 --- 10 36 22 67.2 30.7 -1.4 -134.3 103 F 1 6781 10 20 06 J1148+5254 10 36 22 69.9 33.2 -1.2 -133.8 -11 1 1 6781 10 20 06 10 21 05 =1146+531 10 37 22 70.0 32.9 -1.2 -134.3 48 F 1 7180 Schedule for VLBA_OV (Code Ov ) 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 23 Jan 2003 Day 23 --- 10 21 05 J1158+4825 10 37 22 71.5 46.5 -1.4 -119.6 -15 1 1 7180 10 21 05 10 22 05 =1155+486 10 38 22 71.6 46.2 -1.3 -120.0 45 F 1 7579 10 22 05 NGC3998 10 38 22 67.4 30.2 -1.3 -135.2 -17 1 1 7579 10 22 05 10 24 05 --- 10 40 22 67.6 29.6 -1.3 -136.1 103 F 1 8377 10 24 05 J1148+5254 10 40 22 70.3 31.9 -1.1 -135.7 -11 1 1 8377 10 24 05 10 25 05 =1146+531 10 41 22 70.4 31.6 -1.1 -136.3 48 F 1 8776 10 25 05 J1158+4825 10 41 22 72.0 45.4 -1.3 -121.3 -15 1 1 8776 10 25 05 10 26 05 =1155+486 10 42 22 72.2 45.1 -1.3 -121.8 45 F 1 9175 10 26 05 J1128+5925 10 42 22 66.6 14.8 -0.8 -156.4 -26 1 1 9175 10 26 05 10 27 24 =1125+596 10 43 42 66.7 14.4 -0.7 -157.0 54 F 1 9707 10 27 24 J1208+5441 10 43 42 67.3 33.0 -1.4 -131.4 -18 1 1 9707 10 27 24 10 28 24 =1206+549 10 44 42 67.4 32.8 -1.4 -131.8 41 F 1 10106 10 28 24 J1146+5356 10 44 42 70.2 27.7 -1.0 -141.0 -12 1 1 10106 10 28 24 10 29 24 =1144+542 10 45 42 70.3 27.4 -1.0 -141.5 48 F 1 10505 10 29 24 J1153+4931 10 45 42 72.7 39.5 -1.1 -128.7 -14 1 1 10505 10 29 24 10 30 24 =1150+497 10 46 42 72.8 39.2 -1.1 -129.2 46 F 1 10903 10 30 24 J1148+5254 10 46 42 70.9 29.8 -1.0 -139.0 -12 1 1 10903 10 30 24 10 31 24 =1146+531 10 47 42 71.0 29.5 -1.0 -139.5 48 F 1 11302 10 31 24 J1158+4825 10 47 42 72.9 43.5 -1.2 -124.3 -15 1 1 11302 10 31 24 10 32 24 =1155+486 10 48 42 73.1 43.2 -1.2 -124.8 44 F 1 11701 10 32 24 NGC3998 10 48 42 68.3 27.3 -1.2 -140.0 -17 1 1 11701 10 32 24 10 34 23 --- 10 50 42 68.5 26.7 -1.1 -140.9 103 F 1 12499 10 34 23 J1148+5254 10 50 42 71.3 28.4 -1.0 -141.2 -12 1 1 12499 10 34 23 10 35 23 =1146+531 10 51 42 71.4 28.0 -1.0 -141.7 48 F 1 12898 10 35 23 J1158+4825 10 51 42 73.5 42.2 -1.1 -126.3 -15 1 1 12898 10 35 23 10 36 23 =1155+486 10 52 42 73.6 41.9 -1.1 -126.9 44 F 1 13297 10 36 23 NGC3998 10 52 42 68.7 26.1 -1.1 -141.9 -17 1 1 13297 10 36 23 10 38 23 --- 10 54 42 68.9 25.5 -1.1 -142.9 103 F 1 14095 Schedule for VLBA_OV (Code Ov ) 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 23 Jan 2003 Day 23 --- 10 38 23 J1148+5254 10 54 42 71.7 26.9 -0.9 -143.4 -12 1 1 14095 10 38 23 10 39 22 =1146+531 10 55 42 71.8 26.5 -0.9 -144.0 48 F 1 14494 10 39 22 J1158+4825 10 55 42 74.0 40.8 -1.0 -128.5 -16 1 1 14494 10 39 22 10 40 22 =1155+486 10 56 42 74.1 40.4 -1.0 -129.0 44 F 1 14893 10 40 22 NGC3998 10 56 42 69.0 24.8 -1.0 -143.9 -16 1 1 14893 10 40 22 10 42 22 --- 10 58 42 69.2 24.2 -1.0 -144.9 103 F 1 15690 10 42 22 J1148+5254 10 58 42 72.1 25.3 -0.8 -145.7 -12 1 1 15690 10 42 22 10 43 22 =1146+531 10 59 42 72.1 24.9 -0.8 -146.3 48 F 1 16089 10 43 22 J1158+4825 10 59 42 74.5 39.2 -1.0 -130.7 -16 1 1 16089 10 43 22 10 44 22 =1155+486 11 00 42 74.6 38.8 -1.0 -131.3 44 F 1 16488 10 44 22 NGC3998 11 00 42 69.4 23.5 -1.0 -145.9 -17 1 1 16488 10 44 22 10 46 21 --- 11 02 42 69.5 22.8 -0.9 -147.0 103 F 1 17286 10 46 21 J1148+5254 11 02 42 72.4 23.6 -0.8 -148.1 -12 1 2 17286 10 46 21 10 47 21 =1146+531 11 03 42 72.5 23.2 -0.8 -148.7 48 R 1 16887 10 47 21 J1158+4825 11 03 42 75.0 37.5 -0.9 -133.1 -16 1 2 16887 10 47 21 10 48 21 =1155+486 11 04 42 75.1 37.1 -0.9 -133.7 44 R 1 16488 10 48 21 NGC3998 11 04 42 69.7 22.2 -0.9 -148.0 -17 1 2 16488 10 48 21 10 50 21 --- 11 06 42 69.8 21.5 -0.9 -149.1 103 R 1 15690 10 50 21 J1148+5254 11 06 42 72.7 21.9 -0.7 -150.5 -12 1 2 15690 10 50 21 10 51 20 =1146+531 11 07 42 72.8 21.5 -0.7 -151.1 48 R 1 15291 10 51 20 J1158+4825 11 07 42 75.5 35.7 -0.8 -135.6 -15 1 2 15291 10 51 20 10 52 20 =1155+486 11 08 42 75.6 35.2 -0.8 -136.2 44 R 1 14893 10 52 20 J1128+5925 11 08 42 67.6 6.6 -0.3 -169.7 -25 1 2 14893 10 52 20 10 53 40 =1125+596 11 10 02 67.6 6.2 -0.3 -170.4 55 R 1 14361 10 53 40 J1208+5441 11 10 02 69.9 25.3 -1.0 -143.9 -19 1 2 14361 10 53 40 10 54 40 =1206+549 11 11 02 69.9 25.0 -1.0 -144.5 41 R 1 13962 10 54 40 J1146+5356 11 11 02 72.2 17.5 -0.6 -156.0 -11 1 2 13962 10 54 40 10 55 40 =1144+542 11 12 02 72.3 17.0 -0.6 -156.7 49 R 1 13563 Schedule for VLBA_OV (Code Ov ) 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 23 Jan 2003 Day 23 --- 10 55 40 J1153+4931 11 12 02 75.6 28.1 -0.7 -144.7 -13 1 2 13563 10 55 40 10 56 40 =1150+497 11 13 02 75.7 27.6 -0.7 -145.4 46 R 1 13164 10 58 41 J0927+3902 11 15 04 68.8 -76.8 1.8 86.3 46 1 2 13164 10 58 41 11 01 41 =0923+392 11 18 04 68.2 -76.7 1.8 86.0 180 R 1 11967 11 01 41 J1148+5254 11 18 04 73.4 16.6 -0.5 -157.8 -68 1 2 11967 11 01 41 11 04 10 =1146+531 11 20 34 73.6 15.4 -0.5 -159.5 81 R 1 10970 11 04 10 J1158+4825 11 20 34 76.9 28.8 -0.6 -144.7 -15 1 2 10970 11 04 10 11 05 10 =1155+486 11 21 34 76.9 28.2 -0.6 -145.4 45 R 1 10571 11 05 10 NGC3998 11 21 34 70.8 15.9 -0.6 -157.4 -18 1 2 10571 11 05 10 11 07 10 --- 11 23 34 70.9 15.1 -0.6 -158.6 101 R 1 9773 11 07 10 J1148+5254 11 23 34 73.7 13.9 -0.4 -161.6 -12 1 2 9773 11 07 10 11 08 10 =1146+531 11 24 34 73.8 13.3 -0.4 -162.3 48 R 1 9374 11 08 10 J1158+4825 11 24 34 77.2 26.4 -0.6 -147.8 -15 1 2 9374 11 08 10 11 09 10 =1155+486 11 25 34 77.3 25.7 -0.6 -148.6 45 R 1 8975 11 09 10 NGC3998 11 25 34 71.0 14.3 -0.5 -159.8 -19 1 2 8975 11 09 10 11 11 09 --- 11 27 34 71.1 13.4 -0.5 -161.0 101 R 1 8178 11 11 09 J1148+5254 11 27 34 73.9 11.8 -0.4 -164.4 -12 1 2 8178 11 11 09 11 12 09 =1146+531 11 28 34 73.9 11.3 -0.3 -165.1 48 R 1 7779 11 12 09 J1158+4825 11 28 34 77.6 23.8 -0.5 -151.1 -14 1 2 7779 11 12 09 11 13 09 =1155+486 11 29 34 77.6 23.1 -0.5 -152.0 46 R 1 7380 11 13 09 NGC3998 11 29 34 71.2 12.6 -0.5 -162.2 -19 1 2 7380 11 13 09 11 15 09 --- 11 31 34 71.3 11.8 -0.4 -163.4 101 R 1 6582 11 15 09 J1148+5254 11 31 34 74.0 9.7 -0.3 -167.2 -12 1 2 6582 11 15 09 11 16 08 =1146+531 11 32 34 74.1 9.1 -0.3 -167.9 48 R 1 6183 11 16 08 J1158+4825 11 32 34 77.9 21.0 -0.4 -154.6 -14 1 2 6183 11 16 08 11 17 08 =1155+486 11 33 34 77.9 20.3 -0.4 -155.5 46 R 1 5784 11 17 08 NGC3998 11 33 34 71.3 10.9 -0.4 -164.6 -19 1 2 5784 11 17 08 11 19 08 --- 11 35 34 71.4 10.1 -0.4 -165.8 100 R 1 4986 Schedule for VLBA_OV (Code Ov ) 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 23 Jan 2003 Day 23 --- 11 19 08 J1148+5254 11 35 34 74.2 7.5 -0.2 -170.1 -12 1 2 4986 11 19 08 11 20 08 =1146+531 11 36 34 74.2 7.0 -0.2 -170.8 48 R 1 4587 11 20 08 J1158+4825 11 36 34 78.1 18.1 -0.4 -158.2 -14 1 2 4587 11 20 08 11 21 08 =1155+486 11 37 34 78.2 17.3 -0.4 -159.1 46 R 1 4189 11 21 08 NGC3998 11 37 34 71.5 9.2 -0.3 -167.0 -19 1 2 4189 11 21 08 11 23 07 --- 11 39 34 71.5 8.3 -0.3 -168.3 100 R 1 3391 11 23 07 J1148+5254 11 39 34 74.3 5.3 -0.2 -173.0 -11 1 2 3391 11 23 07 11 24 07 =1146+531 11 40 34 74.3 4.8 -0.1 -173.7 48 R 1 2992 11 24 07 J1158+4825 11 40 34 78.4 15.0 -0.3 -161.9 -14 1 2 2992 11 24 07 11 25 07 =1155+486 11 41 34 78.4 14.2 -0.3 -162.9 46 R 1 2593 11 25 07 J1128+5925 11 41 34 67.7 -4.4 0.2 173.1 -27 1 2 2593 11 25 07 11 26 27 =1125+596 11 42 54 67.7 -4.9 0.2 172.4 52 R 1 2061 11 26 27 J1208+5441 11 42 54 72.0 12.3 -0.4 -162.9 -17 1 2 2061 11 26 27 11 27 27 =1206+549 11 43 54 72.0 11.9 -0.4 -163.6 42 R 1 1662 11 27 27 J1146+5356 11 43 54 73.3 1.5 -0.1 -177.9 -13 1 2 1662 11 27 27 11 28 26 =1144+542 11 44 54 73.3 1.0 0.0 -178.6 47 R 1 1263 11 28 26 J1153+4931 11 44 54 77.6 6.6 -0.1 -171.9 -15 1 2 1263 11 28 26 11 29 26 =1150+497 11 45 54 77.7 5.8 -0.1 -172.8 45 R 1 864 11 29 26 J1148+5254 11 45 54 74.3 1.8 -0.1 -177.6 -13 1 2 864 11 29 26 11 30 26 =1146+531 11 46 54 74.3 1.2 0.0 -178.4 47 R 1 465 11 30 26 J1158+4825 11 46 54 78.6 9.9 -0.2 -168.1 -15 1 2 465 11 30 26 11 31 26 =1155+486 11 47 54 78.7 9.1 -0.2 -169.1 45 R 1 66 11 31 26 NGC3998 11 47 54 71.7 4.6 -0.2 -173.5 -20 1 3 66 11 31 26 11 33 26 --- 11 49 54 71.7 3.7 -0.1 -174.8 100 F 1 864 11 33 26 J1148+5254 11 49 54 74.3 -0.4 0.0 179.4 -11 1 3 864 11 33 26 11 34 25 =1146+531 11 50 54 74.3 -1.0 0.0 178.7 49 F 1 1263 11 34 25 J1158+4825 11 50 54 78.7 6.6 -0.1 -172.1 -15 1 3 1263 11 34 25 11 35 25 =1155+486 11 51 54 78.8 5.7 -0.1 -173.1 45 F 1 1662 Schedule for VLBA_OV (Code Ov ) 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 23 Jan 2003 Day 23 --- 11 35 25 NGC3998 11 51 54 71.8 2.8 -0.1 -176.1 -20 1 3 1662 11 35 25 11 37 25 --- 11 53 54 71.8 1.9 -0.1 -177.3 100 F 1 2460 11 37 25 J1148+5254 11 53 54 74.3 -2.7 0.1 176.5 -11 1 3 2460 11 37 25 11 38 25 =1146+531 11 54 54 74.3 -3.2 0.1 175.7 49 F 1 2859 11 38 25 J1158+4825 11 54 54 78.8 3.2 -0.1 -176.2 -15 1 3 2859 11 38 25 11 39 25 =1155+486 11 55 54 78.8 2.3 0.0 -177.2 45 F 1 3258 11 39 25 NGC3998 11 55 54 71.8 1.0 0.0 -178.6 -20 1 3 3258 11 39 25 11 41 24 --- 11 57 54 71.8 0.1 0.0 -179.9 100 F 1 4056 11 41 24 J1148+5254 11 57 54 74.3 -4.9 0.1 173.5 -11 1 3 4056 11 41 24 11 42 24 =1146+531 11 58 54 74.3 -5.4 0.2 172.8 49 F 1 4454 11 42 24 J1158+4825 11 58 54 78.8 -0.2 0.0 179.7 -15 1 3 4454 11 42 24 11 43 24 =1155+486 11 59 54 78.8 -1.1 0.0 178.7 45 F 1 4853 11 43 24 NGC3998 11 59 54 71.8 -0.8 0.0 178.9 -20 1 3 4853 11 43 24 11 45 24 --- 12 01 54 71.8 -1.7 0.1 177.6 100 F 1 5651 11 45 24 J1148+5254 12 01 54 74.2 -7.1 0.2 170.6 -11 1 3 5651 11 45 24 11 46 23 =1146+531 12 02 54 74.2 -7.6 0.2 169.9 49 F 1 6050 11 46 23 J1158+4825 12 02 54 78.8 -3.7 0.1 175.6 -15 1 3 6050 11 46 23 11 47 23 =1155+486 12 03 54 78.8 -4.5 0.1 174.6 45 F 1 6449 11 47 23 NGC3998 12 03 54 71.8 -2.6 0.1 176.3 -20 1 3 6449 11 47 23 11 49 23 --- 12 05 54 71.8 -3.5 0.1 175.0 100 F 1 7247 11 49 23 J1148+5254 12 05 54 74.1 -9.3 0.3 167.7 -11 1 3 7247 11 49 23 11 50 23 =1146+531 12 06 54 74.0 -9.8 0.3 167.0 49 F 1 7646 11 50 23 J1158+4825 12 06 54 78.7 -7.1 0.1 171.5 -15 1 3 7646 11 50 23 11 51 23 =1155+486 12 07 54 78.7 -7.9 0.2 170.5 44 F 1 8045 11 51 23 J1128+5925 12 07 54 66.9 -12.9 0.7 159.6 -30 1 3 8045 11 51 23 11 52 42 =1125+596 12 09 14 66.9 -13.3 0.7 158.9 50 F 1 8577 11 52 42 J1208+5441 12 09 14 72.6 -0.1 0.0 179.9 -17 1 3 8577 11 52 42 11 53 42 =1206+549 12 10 14 72.6 -0.6 0.0 179.2 42 F 1 8975 Schedule for VLBA_OV (Code Ov ) 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 23 Jan 2003 Day 23 --- 11 53 42 J1146+5356 12 10 14 72.8 -11.7 0.4 164.1 -13 1 3 8975 11 53 42 11 54 42 =1144+542 12 11 14 72.8 -12.2 0.4 163.4 46 F 1 9374 11 54 42 J1153+4931 12 11 14 77.3 -13.2 0.3 163.8 -15 1 3 9374 11 54 42 11 55 42 =1150+497 12 12 14 77.3 -13.9 0.3 162.9 45 F 1 9773 11 55 42 J1148+5254 12 12 14 73.8 -12.6 0.4 163.3 -13 1 3 9773 11 55 42 11 56 42 =1146+531 12 13 14 73.8 -13.1 0.4 162.6 47 F 1 10172 11 56 42 J1158+4825 12 13 14 78.5 -12.3 0.2 165.2 -15 1 3 10172 11 56 42 11 57 42 =1155+486 12 14 14 78.5 -13.1 0.3 164.3 44 F 1 10571 11 57 42 NGC3998 12 14 14 71.6 -7.3 0.3 169.8 -20 1 3 10571 11 57 42 11 59 41 --- 12 16 14 71.5 -8.1 0.3 168.5 100 F 1 11369 11 59 41 J1148+5254 12 16 14 73.6 -14.7 0.5 160.5 -10 1 3 11369 11 59 41 12 00 41 =1146+531 12 17 14 73.6 -15.2 0.5 159.8 49 F 1 11768 12 00 41 J1158+4825 12 17 14 78.3 -15.4 0.3 161.4 -15 1 3 11768 12 00 41 12 01 41 =1155+486 12 18 14 78.3 -16.2 0.3 160.4 44 F 1 12167 12 01 41 NGC3998 12 18 14 71.5 -9.0 0.3 167.3 -20 1 3 12167 12 01 41 12 03 41 --- 12 20 14 71.4 -9.9 0.4 166.1 100 F 1 12964 12 03 41 J1148+5254 12 20 14 73.4 -16.6 0.5 157.8 -11 1 3 12964 12 03 41 12 04 40 =1146+531 12 21 14 73.4 -17.1 0.5 157.1 49 F 1 13363 12 04 40 J1158+4825 12 21 14 78.1 -18.5 0.4 157.6 -15 1 3 13363 12 04 40 12 05 40 =1155+486 12 22 14 78.0 -19.2 0.4 156.7 44 F 1 13762 12 05 40 NGC3998 12 22 14 71.3 -10.7 0.4 164.8 -19 1 3 13762 12 05 40 12 07 40 --- 12 24 14 71.3 -11.6 0.4 163.6 100 F 1 14560 12 07 40 J1148+5254 12 24 14 73.2 -18.6 0.6 155.1 -11 1 3 14560 12 07 40 12 08 40 =1146+531 12 25 14 73.1 -19.0 0.6 154.5 49 F 1 14959 12 08 40 J1158+4825 12 25 14 77.8 -21.4 0.4 154.1 -15 1 3 14959 12 08 40 12 09 40 =1155+486 12 26 14 77.7 -22.1 0.5 153.2 44 F 1 15358 12 09 40 NGC3998 12 26 14 71.2 -12.4 0.5 162.4 -19 1 3 15358 12 09 40 12 11 39 --- 12 28 14 71.1 -13.3 0.5 161.2 101 F 1 16156 Schedule for VLBA_OV (Code Ov ) 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 23 Jan 2003 Day 23 --- 12 11 39 J1148+5254 12 28 14 72.9 -20.4 0.7 152.6 -11 1 3 16156 12 11 39 12 12 39 =1146+531 12 29 14 72.9 -20.9 0.7 151.9 49 F 1 16555 12 12 39 J1158+4825 12 29 14 77.5 -24.1 0.5 150.6 -15 1 3 16555 12 12 39 12 13 39 =1155+486 12 30 14 77.4 -24.8 0.5 149.8 45 F 1 16954 12 13 39 NGC3998 12 30 14 71.0 -14.1 0.5 160.0 -19 1 4 16954 12 13 39 12 15 39 --- 12 32 14 70.9 -14.9 0.6 158.8 101 R 1 17449 12 15 39 J1148+5254 12 32 14 72.6 -22.2 0.7 150.1 -11 1 4 17449 12 15 39 12 16 38 =1146+531 12 33 14 72.6 -22.7 0.7 149.5 49 R 1 17050 12 16 38 J1158+4825 12 33 14 77.2 -26.7 0.6 147.3 -15 1 4 17050 12 16 38 12 17 38 =1155+486 12 34 14 77.1 -27.4 0.6 146.5 45 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 06.254396 * 55 43 54.99980 55 27 13.26837 55 26 00.76083 From catalog imbedded in main SCHED input file. * J0927+3902 09 23 55.319195 * 09 27 03.013916 09 27 15.192077 0923+392 39 15 23.56655 * 39 02 20.85195 39 01 31.28823 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 24.806895 1125+596 59 41 46.14452 * 59 25 14.79921 59 24 04.19679 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 54.648979 1144+542 54 13 22.89875 * 53 56 43.08305 53 55 31.44465 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 06.894402 1146+531 53 11 05.71107 * 52 54 25.32333 52 53 13.65288 /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 34.522268 1150+497 49 47 50.09411 * 49 31 08.83014 49 29 57.30879 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 36.655351 1155+486 48 41 58.01330 * 48 25 16.22922 48 24 04.58330 /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 04.042127 1206+549 54 58 39.44535 * 54 41 58.16477 54 40 45.21274 /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 126.0 J0927+3902 155.8 J1128+5925 128.0 J1146+5356 128.0 J1148+5254 128.1 J1153+4931 128.4 J1158+4825 127.9 J1208+5441 124.7 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