COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: Rotation measure imaging of the CSO J1826+18 Exp. Code: BT081A Schedule Version: 1.00 Processed by SCHED version: NRAO internal release of 4 October 2004 PI: Greg Taylor Address: KIPAC 974 Cottrell Way, Stanford CA 94305 Phone: (505) 838 7411 (work); (650) 493 0097 (home) EMAIL: gtaylor@nrao.edu Fax: (505) 835 7027 Phone during observation: (505) 838 7411 Observing mode: VLBA 256-8-2 at 4cm and 6cm Notes: Fringe finder and EVPA cal #1: 3C279 Pol. EVPA cal #2: J2136+00 Pol. EVPA cal #3: J1310+3220 Pol. D-term cal: OQ208 Schedule for VLBA_PT (Code Pt ) Page 2 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 11 48 19 3C279 14 30 00 44.2 213.4 1.6 27.2 0 1 1 0 11 48 19 11 52 18 --- 14 34 00 43.7 214.6 1.6 28.2 239 F 1 3191 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 11 52 18 3C279 14 34 00 43.7 214.6 1.6 28.2 -4 1 1 3191 11 52 18 11 56 17 --- 14 38 00 43.3 215.9 1.7 29.1 235 F 1 6383 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 11 57 17 J1310+3220 14 39 00 71.5 270.0 1.5 77.8 -3 1 1 6383 11 57 17 11 59 17 =1308+326 14 41 00 71.1 270.3 1.5 77.8 117 F 1 7978 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 11 59 17 J1310+3220 14 41 00 71.1 270.3 1.5 77.8 -4 1 1 7978 11 59 17 12 01 17 =1308+326 14 43 00 70.7 270.6 1.5 77.8 116 F 1 9574 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 12 01 17 OQ208 14 43 00 80.4 234.8 0.6 50.1 -30 1 1 9574 12 01 17 12 04 16 --- 14 46 00 79.9 237.2 0.6 52.2 150 F 1 11967 Schedule for VLBA_PT (Code Pt ) Page 3 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 12 04 16 OQ208 14 46 00 79.9 237.2 0.6 52.2 -4 1 1 11967 12 04 16 12 06 16 --- 14 48 00 79.5 238.7 0.7 53.4 116 F 1 13563 12 06 16 J1826+18 14 48 00 39.2 93.5 -3.6 -60.4 -103 1 2 13563 12 06 16 12 16 14 --- 14 58 00 41.3 95.0 -3.5 -60.2 496 R 1 13659 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 12 16 14 J1826+18 14 58 00 41.3 95.0 -3.5 -60.2 -4 1 2 13659 12 16 14 12 26 12 --- 15 08 00 43.4 96.6 -3.3 -59.9 594 R 1 5681 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 12 26 12 J1826+18 15 08 00 43.4 96.6 -3.3 -59.9 -4 1 3 5681 12 26 12 12 36 11 --- 15 18 00 45.4 98.3 -3.1 -59.6 594 F 1 2297 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 12 36 11 J1826+18 15 18 00 45.4 98.3 -3.1 -59.6 -4 1 3 2297 12 36 11 12 46 09 --- 15 28 00 47.4 100.0 -3.0 -59.1 594 F 1 10275 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 12 46 09 J1826+18 15 28 00 47.4 100.0 -3.0 -59.1 -4 1 4 10275 12 46 09 12 56 08 --- 15 38 00 49.5 101.9 -2.8 -58.5 594 R 1 16946 Schedule for VLBA_PT (Code Pt ) Page 4 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 12 56 08 J1826+18 15 38 00 49.5 101.9 -2.8 -58.5 -4 1 4 16946 12 56 08 13 06 06 --- 15 48 00 51.5 103.8 -2.6 -57.8 594 R 1 8968 13 08 06 OQ208 15 50 00 67.4 262.0 1.7 68.5 8 1 4 8968 13 08 06 13 11 05 --- 15 53 00 66.7 262.6 1.8 68.7 180 R 1 6575 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 13 11 05 OQ208 15 53 00 66.7 262.6 1.8 68.7 -4 1 4 6575 13 11 05 13 14 05 --- 15 56 00 66.1 263.2 1.8 68.9 176 R 1 4181 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 13 16 04 3C279 15 58 00 31.3 236.0 3.0 43.5 44 1 4 4181 13 16 04 13 18 04 --- 16 00 00 31.0 236.4 3.1 43.8 120 R 1 2586 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 13 18 04 3C279 16 00 00 31.0 236.4 3.1 43.8 -4 1 5 2586 13 18 04 13 23 03 --- 16 05 00 30.1 237.5 3.1 44.4 295 F 1 1403 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 13 24 23 J1310+3220 16 06 20 53.5 279.5 2.9 74.6 27 1 5 1403 13 24 23 13 26 23 =1308+326 16 08 20 53.1 279.7 3.0 74.5 120 F 1 2999 Schedule for VLBA_PT (Code Pt ) Page 5 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 13 26 23 J1310+3220 16 08 20 53.1 279.7 3.0 74.5 -4 1 5 2999 13 26 23 13 28 22 =1308+326 16 10 20 52.7 279.9 3.0 74.3 116 F 1 4595 13 28 22 J1826+18 16 10 20 55.9 108.8 -2.3 -55.6 -120 1 5 4595 13 28 22 13 38 21 --- 16 20 20 57.8 111.2 -2.1 -54.3 478 F 1 12573 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 13 38 21 J1826+18 16 20 20 57.8 111.2 -2.1 -54.3 -4 1 6 12573 13 38 21 13 48 19 --- 16 30 20 59.8 114.0 -1.9 -52.8 594 R 1 14649 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 13 48 19 J1826+18 16 30 20 59.8 114.0 -1.9 -52.8 -4 1 6 14649 13 48 19 13 58 17 --- 16 40 20 61.6 117.0 -1.8 -50.9 594 R 1 6671 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 13 58 17 J1826+18 16 40 20 61.6 117.0 -1.8 -50.9 -4 1 7 6671 13 58 17 14 08 16 --- 16 50 20 63.4 120.3 -1.6 -48.8 594 F 1 1307 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 14 08 16 J1826+18 16 50 20 63.4 120.3 -1.6 -48.8 -4 1 7 1307 14 08 16 14 18 14 --- 17 00 20 65.2 124.0 -1.4 -46.3 594 F 1 9285 Schedule for VLBA_PT (Code Pt ) Page 6 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 14 18 14 J1826+18 17 00 20 65.2 124.0 -1.4 -46.3 -4 1 7 9285 14 18 14 14 28 12 --- 17 10 20 66.9 128.1 -1.3 -43.3 594 F 1 17264 14 30 12 OQ208 17 12 20 50.4 274.6 3.1 69.4 16 1 8 17264 14 30 12 14 33 12 --- 17 15 20 49.8 274.9 3.1 69.4 180 R 1 14870 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 14 33 12 OQ208 17 15 20 49.8 274.9 3.1 69.4 -4 1 8 14870 14 33 12 14 36 11 --- 17 18 20 49.2 275.3 3.2 69.3 176 R 1 12477 14 36 11 J1826+18 17 18 20 68.1 131.8 -1.1 -40.5 -102 1 8 12477 14 36 11 14 46 09 --- 17 28 20 69.6 136.9 -1.0 -36.5 497 R 1 4499 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 14 46 09 J1826+18 17 28 20 69.6 136.9 -1.0 -36.5 -4 1 9 4499 14 46 09 14 56 08 --- 17 38 20 70.9 142.7 -0.8 -31.8 594 F 1 3480 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 14 56 08 J1826+18 17 38 20 70.9 142.7 -0.8 -31.8 -4 1 9 3480 14 56 08 15 06 06 --- 17 48 20 72.1 149.3 -0.6 -26.4 594 F 1 11458 Schedule for VLBA_PT (Code Pt ) Page 7 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 15 06 06 J1826+18 17 48 20 72.1 149.3 -0.6 -26.4 -4 1 10 11458 15 06 06 15 16 05 --- 17 58 20 73.0 156.5 -0.5 -20.3 594 R 1 15764 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 15 16 05 J1826+18 17 58 20 73.0 156.5 -0.5 -20.3 -4 1 10 15764 15 16 05 15 26 03 --- 18 08 20 73.7 164.5 -0.3 -13.5 594 R 1 7786 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 15 26 03 J1826+18 18 08 20 73.7 164.5 -0.3 -13.5 -4 1 11 7786 15 26 03 15 36 01 --- 18 18 20 74.1 172.9 -0.1 -6.2 594 F 1 192 15 37 01 J2136+00 18 19 20 33.0 115.2 -3.3 -48.4 -28 1 11 192 15 37 01 15 39 01 --- 18 21 20 33.4 115.6 -3.3 -48.2 91 F 1 1788 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 15 39 01 J2136+00 18 21 20 33.4 115.6 -3.3 -48.2 -4 1 11 1788 15 39 01 15 41 00 --- 18 23 20 33.8 116.0 -3.2 -48.0 116 F 1 3383 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 15 43 00 OQ208 18 25 20 35.5 282.8 4.3 66.4 2 1 11 3383 15 43 00 15 45 00 --- 18 27 20 35.1 283.0 4.3 66.2 120 F 1 4979 Schedule for VLBA_PT (Code Pt ) Page 8 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 15 45 00 OQ208 18 27 20 35.1 283.0 4.3 66.2 -4 1 11 4979 15 45 00 15 46 59 --- 18 29 20 34.7 283.2 4.4 66.1 116 F 1 6575 15 46 59 J1826+18 18 29 20 74.2 182.5 0.0 2.2 -85 1 11 6575 15 46 59 15 56 58 --- 18 39 20 74.0 191.1 0.2 9.6 513 F 1 14553 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 15 56 58 J1826+18 18 39 20 74.0 191.1 0.2 9.6 -4 1 12 14553 15 56 58 16 06 56 --- 18 49 20 73.4 199.3 0.4 16.7 594 R 1 12669 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 16 06 56 J1826+18 18 49 20 73.4 199.3 0.4 16.7 -4 1 12 12669 16 06 56 16 16 55 --- 18 59 20 72.6 206.9 0.5 23.3 594 R 1 4691 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 16 16 55 J1826+18 18 59 20 72.6 206.9 0.5 23.3 -4 1 13 4691 16 16 55 16 26 53 --- 19 09 20 71.6 213.9 0.7 29.0 594 F 1 3287 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 16 26 53 J1826+18 19 09 20 71.6 213.9 0.7 29.0 -4 1 13 3287 16 26 53 16 36 51 --- 19 19 20 70.3 220.1 0.9 34.1 594 F 1 11266 Schedule for VLBA_PT (Code Pt ) Page 9 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 16 36 51 J1826+18 19 19 20 70.3 220.1 0.9 34.1 -4 1 14 11266 16 36 51 16 46 50 --- 19 29 20 68.9 225.5 1.0 38.5 594 R 1 15956 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 16 46 50 J1826+18 19 29 20 68.9 225.5 1.0 38.5 -4 1 14 15956 16 46 50 16 56 48 --- 19 39 20 67.4 230.4 1.2 42.2 594 R 1 7978 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 16 56 48 J1826+18 19 39 20 67.4 230.4 1.2 42.2 -4 1 14 7978 16 56 48 17 06 46 --- 19 49 20 65.7 234.7 1.4 45.3 594 R 1 0 ----------- Tape Change ------------ Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 17 06 46 J1826+18 19 49 20 65.7 234.7 1.4 45.3 -4 2 1 0 17 06 46 17 16 45 --- 19 59 20 64.0 238.5 1.5 48.0 594 F 1 7978 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 17 16 45 J1826+18 19 59 20 64.0 238.5 1.5 48.0 -4 2 1 7978 17 16 45 17 26 43 --- 20 09 20 62.2 242.0 1.7 50.3 594 F 1 15956 Schedule for VLBA_PT (Code Pt ) Page 10 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 17 26 43 J1826+18 20 09 20 62.2 242.0 1.7 50.3 -4 2 2 15956 17 26 43 17 36 41 --- 20 19 20 60.4 245.1 1.9 52.2 594 R 1 11266 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 17 36 41 J1826+18 20 19 20 60.4 245.1 1.9 52.2 -4 2 2 11266 17 36 41 17 46 40 --- 20 29 20 58.5 247.9 2.0 53.8 594 R 1 3287 17 47 40 J2136+00 20 30 20 53.0 151.6 -1.1 -23.1 -10 2 2 3287 17 47 40 17 49 39 --- 20 32 20 53.2 152.4 -1.1 -22.5 109 R 1 1692 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 17 49 39 J2136+00 20 32 20 53.2 152.4 -1.1 -22.5 -4 2 2 1692 17 49 39 17 51 39 --- 20 34 20 53.4 153.1 -1.0 -21.9 116 R 1 96 17 51 39 J1826+18 20 34 20 57.5 249.2 2.1 54.5 -70 2 3 96 17 51 39 18 01 37 --- 20 44 20 55.6 251.6 2.3 55.8 528 F 1 8074 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 18 01 37 J1826+18 20 44 20 55.6 251.6 2.3 55.8 -4 2 3 8074 18 01 37 18 11 36 --- 20 54 20 53.6 253.9 2.5 56.8 594 F 1 16052 Schedule for VLBA_PT (Code Pt ) Page 11 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 18 11 36 J1826+18 20 54 20 53.6 253.9 2.5 56.8 -4 2 4 16052 18 11 36 18 21 34 --- 21 04 20 51.6 256.0 2.6 57.7 594 R 1 11169 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 18 21 34 J1826+18 21 04 20 51.6 256.0 2.6 57.7 -4 2 4 11169 18 21 34 18 31 32 --- 21 14 20 49.6 258.0 2.8 58.5 594 R 1 3191 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 18 31 32 J1826+18 21 14 20 49.6 258.0 2.8 58.5 -4 2 5 3191 18 31 32 18 41 31 --- 21 24 20 47.6 259.9 3.0 59.1 594 F 1 4787 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 18 41 31 J1826+18 21 24 20 47.6 259.9 3.0 59.1 -4 2 5 4787 18 41 31 18 51 29 --- 21 34 20 45.5 261.6 3.1 59.5 594 F 1 12765 18 52 29 J2136+00 21 35 20 56.4 179.3 0.0 -0.6 -1 2 5 12765 18 52 29 18 54 29 --- 21 37 20 56.4 180.2 0.0 0.2 119 F 1 14361 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 18 54 29 J2136+00 21 37 20 56.4 180.2 0.0 0.2 -4 2 5 14361 18 54 29 18 56 28 --- 21 39 20 56.4 181.1 0.0 0.9 116 F 1 15956 Schedule for VLBA_PT (Code Pt ) Page 12 Rotation measure imaging of the CSO J1826+18 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 18 Feb 2005 Day 49 --- 18 56 28 J1826+18 21 39 20 44.5 262.5 3.2 59.7 -60 2 6 15956 18 56 28 19 06 27 --- 21 49 20 42.5 264.1 3.4 60.1 538 R 1 11266 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 19 06 27 J1826+18 21 49 20 42.5 264.1 3.4 60.1 -4 2 6 11266 19 06 27 19 16 25 --- 21 59 20 40.4 265.7 3.5 60.3 594 R 1 3287 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 19 16 25 J1826+18 21 59 20 40.4 265.7 3.5 60.3 -4 2 7 3287 19 16 25 19 26 23 --- 22 09 20 38.3 267.2 3.7 60.5 594 F 1 4691 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 19 26 23 J1826+18 22 09 20 38.3 267.2 3.7 60.5 -4 2 7 4691 19 26 23 19 36 22 --- 22 19 20 36.3 268.7 3.9 60.6 594 F 1 12669 Next scan frequencies: 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 Next BBC frequencies: 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 19 36 22 J1826+18 22 19 20 36.3 268.7 3.9 60.6 -4 2 7 12669 19 36 22 19 42 21 --- 22 25 20 35.0 269.5 4.0 60.6 355 F 1 17456 Next scan frequencies: 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 Next BBC frequencies: 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 19 42 21 J1826+18 22 25 20 35.0 269.5 4.0 60.6 -4 2 8 17456 19 42 21 19 48 20 --- 22 31 20 33.8 270.4 4.1 60.6 355 R 1 12669 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: rm6cmv.set Matches group v6cm_2 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = A C A C A C A 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= 4609.49 4609.49 4675.49 4675.49 4990.49 4990.49 5091.49 5091.49 BBC fr= 509.49 509.49 575.49 575.49 890.49 890.49 991.49 991.49 Bandwd= 8.000 8.000 8.000 8.000 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 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto Setup file: rm4cmv.set Matches group v4cm_3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 2 Station: VLBA Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = B D B D B D B D VLBA FE= omit 4cm omit 4cm VLBA Synth= 7.6 15.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 2 Setup file default. Used pcal sets: 2 LO sum= 8110.99 8110.99 8186.99 8186.99 8416.99 8416.99 8580.49 8580.49 BBC fr= 510.99 510.99 586.99 586.99 816.99 816.99 980.49 980.49 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 2 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 10 10 10 510 6010 6010 6010 6510 PCALFR2= 10 10 10 510 6010 6010 6010 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- Rotation measure imaging of the CSO J1826+18 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). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) (B1950) (J2000) (Date) * J1826+18 18 24 06.162292 * 18 26 17.711800 18 26 30.002410 18 30 02.91416 * 18 31 52.91500 18 31 44.62022 From catalog imbedded in main SCHED input file. 6.848 scan hours, 285.845 baseline hours above horizon. J1407+2827 14 04 45.615151 * 14 07 00.394410 14 07 14.786704 1404+286 28 41 29.23495 * 28 27 14.68998 28 25 30.21453 J1407+28 From catalog imbedded in main SCHED input file. * OQ208 ICRF - Ext.1 Source - 1998 IERS Annual Report 0.349 scan hours, 14.433 baseline hours above horizon. J1256-0547 12 53 35.831293 * 12 56 11.166560 12 56 27.581333 1253-055 -05 31 07.99572 *-05 47 21.52458 -05 49 06.64839 * 3C279 From catalog imbedded in main SCHED input file. J1256-05 ICRF - Ext.1 Source - 1998 IERS Annual Report 0.249 scan hours, 9.160 baseline hours above horizon. * J1310+3220 13 08 07.560126 * 13 10 28.663845 13 10 44.106619 1308+326 32 36 40.23888 * 32 20 43.78295 32 18 51.43229 J1310+32 From catalog imbedded in main SCHED input file. ICRF - Ext.1 Source - 1998 IERS Annual Report 0.133 scan hours, 5.683 baseline hours above horizon. J2136+0041 21 34 05.207365 * 21 36 38.586300 21 36 52.650407 2134+00 00 28 25.08052 * 00 41 54.21335 00 43 03.71742 2134+004 /home/filehost/cwalker/sched/catalogs/sources.vlba * J2136+00 ICRF - Ext.1 Source - 1998 IERS Annual Report 0.199 scan hours, 7.518 baseline hours above horizon. 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) J1826+18 62.4 OQ208 122.0 3C279 134.9 J1310+3220 133.4 J2136+00 14.5 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