COVER INFORMATION Station: EB_VLBA (Code Eb ) Experiment: Search for stellar lensing of 3C435B Exp. Code: BC126 Schedule Version: 1.00 Processed by SCHED version: Short term release of 12 Feb. 2001 PI: W. D. Cotton Address: National Radio Astronomy Observatory 520 Edgemont road Charlottesville, VA 22903-2475 U.S.A. Phone: + 434 296 0319 EMAIL: bcotton@nrao.edu Fax: + 434 296 0278 Phone during observation: + 434 296 0319 Observing mode: Dual polarization at 6 cm Notes: BE SURE to use the position for 3435B given here Schedule for EB_VLBA (Code Eb ) Page 2 Search for stellar lensing of 3C435B 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 16 Feb 2002 Day 47 --- Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 605.49 605.49 613.49 613.49 621.49 621.49 629.49 629.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 13 00 00 3C435B 23 12 56 41.9 215.7 1.7 22.0 0 1 1 0 13 00 00 13 03 30 --- 23 16 27 41.6 216.7 1.8 22.6 210 F 1 1400 13 03 30 J2125+0441 23 16 27 38.6 216.4 1.8 22.2 -27 1 1 1400 13 03 30 13 05 30 --- 23 18 27 38.4 217.0 1.9 22.6 93 F 1 2200 13 05 30 3C435B 23 18 27 41.4 217.3 1.8 22.9 -27 1 1 2200 13 05 30 13 09 00 --- 23 21 57 41.1 218.4 1.9 23.5 183 F 1 3600 13 09 00 J2125+0441 23 21 57 38.1 218.0 1.9 23.1 -27 1 1 3600 13 09 00 13 11 00 --- 23 23 58 37.9 218.6 2.0 23.4 93 F 1 4400 13 11 00 J2123+1007 23 23 58 42.6 222.2 2.0 25.7 -34 1 1 4400 13 11 00 13 14 30 --- 23 27 28 42.2 223.3 2.1 26.3 176 F 1 5800 13 14 30 J2125+0441 23 27 28 37.5 219.6 2.0 24.0 -34 1 1 5800 13 14 30 13 16 30 --- 23 29 29 37.3 220.2 2.1 24.3 86 F 1 6600 13 16 30 3C435B 23 29 29 40.3 220.7 2.0 24.7 -27 1 1 6600 13 16 30 13 20 00 --- 23 32 59 39.9 221.7 2.1 25.2 183 F 1 8000 13 20 00 J2125+0441 23 32 59 37.0 221.2 2.1 24.8 -27 1 1 8000 13 20 00 13 22 00 --- 23 35 00 36.8 221.7 2.2 25.1 93 F 1 8800 13 22 00 3C435B 23 35 00 39.7 222.3 2.1 25.6 -27 1 1 8800 13 22 00 13 25 30 --- 23 38 30 39.3 223.3 2.2 26.1 183 F 1 10200 13 25 30 J2125+0441 23 38 30 36.4 222.7 2.2 25.6 -27 1 1 10200 13 25 30 13 27 30 --- 23 40 31 36.2 223.3 2.2 25.9 93 F 1 11000 13 27 30 3C435B 23 40 31 39.1 223.9 2.2 26.4 -27 1 1 11000 13 27 30 13 31 00 --- 23 44 01 38.7 224.9 2.2 26.9 183 F 1 12400 13 31 00 J2125+0441 23 44 01 35.8 224.3 2.3 26.4 -27 1 1 12400 13 31 00 13 33 00 --- 23 46 01 35.6 224.8 2.3 26.7 93 F 1 13200 Schedule for EB_VLBA (Code Eb ) Page 3 Search for stellar lensing of 3C435B 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 16 Feb 2002 Day 47 --- 13 33 00 J2123+1007 23 46 01 40.1 228.7 2.4 29.0 -33 1 1 13200 13 33 00 13 36 30 --- 23 49 32 39.7 229.6 2.4 29.5 177 F 1 14600 13 36 30 J2125+0441 23 49 32 35.2 225.8 2.4 27.2 -33 1 1 14600 13 36 30 13 38 30 --- 23 51 32 34.9 226.3 2.4 27.5 87 F 1 15400 13 38 30 3C435B 23 51 32 37.9 227.0 2.4 28.0 -27 1 1 15400 13 38 30 13 42 00 --- 23 55 03 37.5 227.9 2.4 28.4 183 F 1 16800 13 42 00 J2125+0441 23 55 03 34.5 227.2 2.5 27.9 -27 1 1 16800 13 42 00 13 44 00 --- 23 57 03 34.3 227.8 2.5 28.2 93 F 1 17600 13 44 00 3C435B 23 57 03 37.2 228.5 2.5 28.7 -27 1 2 17600 13 44 00 13 47 30 --- 00 00 34 36.8 229.4 2.5 29.2 183 R 1 16200 13 47 30 J2125+0441 00 00 34 33.9 228.7 2.6 28.6 -27 1 2 16200 13 47 30 13 49 30 --- 00 02 34 33.6 229.2 2.6 28.9 93 R 1 15400 13 49 30 3C435B 00 02 34 36.6 230.0 2.6 29.4 -27 1 2 15400 13 49 30 13 53 00 --- 00 06 05 36.1 230.9 2.6 29.9 183 R 1 14000 13 53 00 J2125+0441 00 06 05 33.2 230.2 2.7 29.3 -27 1 2 14000 13 53 00 13 55 00 --- 00 08 05 33.0 230.7 2.7 29.6 93 R 1 13200 13 55 00 J2123+1007 00 08 05 37.4 234.7 2.7 31.8 -33 1 2 13200 13 55 00 13 58 30 --- 00 11 36 36.9 235.6 2.8 32.2 177 R 1 11800 13 58 30 J2125+0441 00 11 36 32.5 231.6 2.8 30.0 -32 1 2 11800 13 58 30 14 00 30 --- 00 13 36 32.3 232.1 2.8 30.2 88 R 1 11000 14 00 30 3C435B 00 13 36 35.2 232.9 2.7 30.8 -27 1 2 11000 14 00 30 14 04 00 --- 00 17 07 34.7 233.8 2.8 31.2 183 R 1 9600 14 04 00 J2125+0441 00 17 07 31.8 233.0 2.9 30.6 -27 1 2 9600 14 04 00 14 06 00 --- 00 19 07 31.6 233.5 2.9 30.8 93 R 1 8800 14 06 00 3C435B 00 19 07 34.5 234.3 2.8 31.4 -27 1 2 8800 14 06 00 14 09 30 --- 00 22 37 34.0 235.2 2.9 31.8 183 R 1 7400 14 09 30 J2125+0441 00 22 37 31.1 234.4 3.0 31.2 -27 1 2 7400 14 09 30 14 11 30 --- 00 24 38 30.9 234.9 3.0 31.4 93 R 1 6600 14 11 30 3C435B 00 24 38 33.8 235.7 2.9 32.0 -27 1 2 6600 14 11 30 14 15 00 --- 00 28 08 33.3 236.6 3.0 32.4 183 R 1 5200 Schedule for EB_VLBA (Code Eb ) Page 4 Search for stellar lensing of 3C435B 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 16 Feb 2002 Day 47 --- 14 15 00 J2125+0441 00 28 08 30.4 235.7 3.0 31.8 -27 1 2 5200 14 15 00 14 17 00 --- 00 30 09 30.1 236.2 3.1 32.0 93 R 1 4400 14 17 00 J2123+1007 00 30 09 34.4 240.3 3.1 34.1 -32 1 2 4400 14 17 00 14 20 30 --- 00 33 39 33.9 241.1 3.2 34.4 178 R 1 3000 14 20 30 J2125+0441 00 33 39 29.7 237.1 3.1 32.4 -32 1 2 3000 14 20 30 14 22 30 --- 00 35 40 29.4 237.6 3.2 32.6 88 R 1 2200 14 22 30 3C435B 00 35 40 32.3 238.5 3.1 33.1 -27 1 2 2200 14 22 30 14 26 00 --- 00 39 10 31.8 239.3 3.2 33.5 183 R 1 800 14 26 00 J2125+0441 00 39 10 28.9 238.4 3.2 32.9 -27 1 2 800 14 26 00 14 28 00 --- 00 41 10 28.7 238.9 3.3 33.1 93 R 1 0 14 28 00 3C435B 00 41 10 31.5 239.8 3.2 33.7 -27 1 3 0 14 28 00 14 31 30 --- 00 44 41 31.1 240.7 3.3 34.0 183 F 1 1400 14 31 30 J2125+0441 00 44 41 28.2 239.7 3.3 33.4 -26 1 3 1400 14 31 30 14 33 30 --- 00 46 41 27.9 240.2 3.4 33.6 94 F 1 2200 14 35 30 2134+00 00 48 42 25.8 235.6 3.2 31.6 91 1 3 2200 14 35 30 14 41 00 --- 00 54 13 25.0 236.9 3.3 32.2 330 F 1 4400 14 41 00 3C435B 00 54 13 29.7 242.9 3.4 34.8 -34 1 3 4400 14 41 00 14 44 30 --- 00 57 43 29.2 243.7 3.5 35.1 176 F 1 5800 14 44 30 J2125+0441 00 57 43 26.4 242.7 3.5 34.5 -26 1 3 5800 14 44 30 14 46 30 --- 00 59 43 26.1 243.2 3.6 34.7 94 F 1 6600 14 46 30 3C435B 00 59 43 28.9 244.2 3.5 35.3 -26 1 3 6600 14 46 30 14 50 00 --- 01 03 14 28.4 245.0 3.6 35.5 184 F 1 8000 14 50 00 J2125+0441 01 03 14 25.6 244.0 3.6 35.0 -26 1 3 8000 14 50 00 14 52 00 --- 01 05 14 25.3 244.4 3.7 35.1 94 F 1 8800 14 52 00 J2123+1007 01 05 14 29.4 248.6 3.7 36.9 -31 1 3 8800 14 52 00 14 55 30 --- 01 08 45 28.8 249.3 3.8 37.2 179 F 1 10200 14 55 30 J2125+0441 01 08 45 24.8 245.2 3.7 35.4 -31 1 3 10200 14 55 30 14 57 30 --- 01 10 45 24.5 245.7 3.8 35.5 89 F 1 11000 14 57 30 3C435B 01 10 45 27.3 246.7 3.7 36.1 -26 1 3 11000 14 57 30 15 01 00 --- 01 14 16 26.8 247.5 3.8 36.3 184 F 1 12400 Schedule for EB_VLBA (Code Eb ) Page 5 Search for stellar lensing of 3C435B 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 16 Feb 2002 Day 47 --- 15 01 00 J2125+0441 01 14 16 24.0 246.5 3.8 35.8 -26 1 3 12400 15 01 00 15 03 00 --- 01 16 16 23.7 246.9 3.8 35.9 94 F 1 13200 15 03 00 3C435B 01 16 16 26.5 248.0 3.8 36.5 -26 1 3 13200 15 03 00 15 06 30 --- 01 19 47 26.0 248.7 3.8 36.7 184 F 1 14600 15 06 30 J2125+0441 01 19 47 23.2 247.7 3.9 36.2 -26 1 3 14600 15 06 30 15 08 30 --- 01 21 47 22.9 248.1 3.9 36.3 94 F 1 15400 15 08 30 3C435B 01 21 47 25.7 249.2 3.9 36.8 -26 1 3 15400 15 08 30 15 12 00 --- 01 25 18 25.2 250.0 3.9 37.0 184 F 1 16800 15 12 00 J2125+0441 01 25 18 22.4 248.9 4.0 36.5 -26 1 3 16800 15 12 00 15 14 00 --- 01 27 18 22.1 249.3 4.0 36.6 94 F 1 17600 15 14 00 J2123+1007 01 27 18 26.1 253.4 4.1 38.2 -31 1 4 17600 15 14 00 15 17 30 --- 01 30 49 25.5 254.2 4.1 38.4 179 R 1 16200 15 17 30 J2125+0441 01 30 49 21.6 250.1 4.1 36.8 -31 1 4 16200 15 17 30 15 19 30 --- 01 32 49 21.3 250.5 4.1 37.0 89 R 1 15400 15 19 30 3C435B 01 32 49 24.1 251.6 4.1 37.5 -26 1 4 15400 15 19 30 15 23 00 --- 01 36 19 23.5 252.3 4.1 37.7 184 R 1 14000 15 23 00 J2125+0441 01 36 19 20.7 251.2 4.2 37.2 -26 1 4 14000 15 23 00 15 25 00 --- 01 38 20 20.4 251.7 4.2 37.3 94 R 1 13200 15 25 00 3C435B 01 38 20 23.2 252.8 4.2 37.8 -26 1 4 13200 15 25 00 15 28 30 --- 01 41 50 22.7 253.5 4.2 37.9 184 R 1 11800 15 28 30 J2125+0441 01 41 50 19.9 252.4 4.3 37.4 -26 1 4 11800 15 28 30 15 30 30 --- 01 43 51 19.6 252.8 4.3 37.5 94 R 1 11000 15 30 30 3C435B 01 43 51 22.4 253.9 4.2 38.0 -26 1 4 11000 15 30 30 15 34 00 --- 01 47 21 21.9 254.7 4.3 38.2 184 R 1 9600 15 34 00 J2125+0441 01 47 21 19.1 253.6 4.4 37.7 -26 1 4 9600 15 34 00 15 36 00 --- 01 49 22 18.8 254.0 4.4 37.8 94 R 1 8800 15 36 00 J2123+1007 01 49 22 22.7 258.1 4.4 39.2 -31 1 4 8800 15 36 00 15 39 30 --- 01 52 52 22.1 258.8 4.5 39.3 179 R 1 7400 15 39 30 J2125+0441 01 52 52 18.2 254.7 4.5 38.0 -31 1 4 7400 15 39 30 15 41 30 --- 01 54 53 17.9 255.1 4.5 38.1 89 R 1 6600 Schedule for EB_VLBA (Code Eb ) Page 6 Search for stellar lensing of 3C435B 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 16 Feb 2002 Day 47 --- 15 41 30 3C435B 01 54 53 20.7 256.2 4.4 38.5 -26 1 4 6600 15 41 30 15 45 00 --- 01 58 23 20.2 257.0 4.5 38.7 184 R 1 5200 15 45 00 J2125+0441 01 58 23 17.4 255.8 4.5 38.2 -26 1 4 5200 15 45 00 15 47 00 --- 02 00 23 17.1 256.2 4.6 38.3 94 R 1 4400 15 47 00 3C435B 02 00 23 19.8 257.4 4.5 38.7 -26 1 4 4400 15 47 00 15 50 30 --- 02 03 54 19.3 258.1 4.6 38.9 184 R 1 3000 15 50 30 J2125+0441 02 03 54 16.5 257.0 4.6 38.4 -26 1 4 3000 15 50 30 15 52 30 --- 02 05 54 16.2 257.4 4.7 38.5 94 R 1 2200 15 52 30 3C435B 02 05 54 19.0 258.5 4.6 38.9 -26 1 4 2200 15 52 30 15 56 00 --- 02 09 25 18.4 259.2 4.7 39.1 184 R 1 800 15 56 00 J2125+0441 02 09 25 15.7 258.1 4.7 38.6 -26 1 4 800 15 56 00 15 58 00 --- 02 11 25 15.3 258.5 4.8 38.7 94 R 1 0 15 58 00 J2123+1007 02 11 25 19.2 262.5 4.8 39.8 -30 1 5 0 15 58 00 16 01 30 --- 02 14 56 18.6 263.2 4.9 39.9 180 F 1 1400 16 01 30 J2125+0441 02 14 56 14.8 259.2 4.8 38.8 -30 1 5 1400 16 01 30 16 03 30 --- 02 16 56 14.5 259.6 4.9 38.9 90 F 1 2200 16 03 30 3C435B 02 16 56 17.3 260.7 4.8 39.3 -26 1 5 2200 16 03 30 16 07 00 --- 02 20 27 16.7 261.4 4.9 39.4 184 F 1 3600 16 07 00 J2125+0441 02 20 27 13.9 260.3 4.9 39.0 -26 1 5 3600 16 07 00 16 09 00 --- 02 22 27 13.6 260.7 4.9 39.0 94 F 1 4400 16 09 00 3C435B 02 22 27 16.4 261.8 4.9 39.4 -26 1 5 4400 16 09 00 16 12 30 --- 02 25 58 15.8 262.5 4.9 39.5 184 F 1 5800 16 12 30 J2125+0441 02 25 58 13.1 261.4 5.0 39.1 -26 1 5 5800 16 12 30 16 14 30 --- 02 27 58 12.8 261.8 5.0 39.2 94 F 1 6600 16 16 30 2134+00 02 29 58 11.1 257.4 4.9 H 38.4 92 1 5 6600 16 16 30 16 22 00 --- 02 35 29 10.2 258.5 5.0 H 38.5 0 F 1 8800 16 22 00 3C435B 02 35 29 14.3 264.4 5.1 39.7 -33 1 5 8800 16 22 00 16 25 30 --- 02 39 00 13.8 265.1 5.2 39.7 177 F 1 10200 16 25 30 J2125+0441 02 39 00 11.0 264.0 5.2 H 39.4 -26 1 5 10200 16 25 30 16 27 30 --- 02 41 00 10.7 264.4 5.3 H 39.4 0 F 1 11000 Schedule for EB_VLBA (Code Eb ) Page 7 Search for stellar lensing of 3C435B 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 16 Feb 2002 Day 47 --- 16 27 30 3C435B 02 41 00 13.5 265.5 5.2 39.7 -26 1 5 11000 16 27 30 16 31 00 --- 02 44 31 12.9 266.2 5.3 39.8 184 F 1 12400 16 31 00 J2125+0441 02 44 31 10.1 265.0 5.3 H 39.5 -26 1 5 12400 16 31 00 16 33 00 --- 02 46 31 9.8 265.4 5.3 H 39.5 0 F 1 13200 16 33 00 J2123+1007 02 46 31 13.6 269.4 5.4 40.2 -30 1 5 13200 16 33 00 16 36 30 --- 02 50 02 13.1 270.1 5.4 40.2 180 F 1 14600 16 36 30 J2125+0441 02 50 02 9.3 266.1 5.4 H 39.5 -30 1 5 14600 16 36 30 16 38 30 --- 02 52 02 9.0 266.5 5.4 D 39.5 0 F 1 15400 16 38 30 3C435B 02 52 02 11.7 267.7 5.4 H 39.8 -26 1 5 15400 16 38 30 16 42 00 --- 02 55 32 11.2 268.3 5.4 H 39.9 0 F 1 16800 16 42 00 J2125+0441 02 55 32 8.4 267.2 5.5 D 39.6 -24 1 5 16800 16 42 00 16 44 00 --- 02 57 33 8.1 267.6 5.5 D 39.6 0 F 1 17600 16 44 00 3C435B 02 57 33 10.8 268.7 5.5 H 39.9 -22 1 6 17600 16 44 00 16 47 30 --- 03 01 03 10.3 269.4 5.5 H 39.9 0 R 1 16200 16 47 30 J2125+0441 03 01 03 7.5 268.3 5.6 D 39.6 -20 1 6 16200 16 47 30 16 49 30 --- 03 03 04 7.2 268.7 5.6 D 39.6 0 R 1 15400 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /opt/local/share/sched/setups/v4cm-128-8-1.set Matches group eb_x1 in /opt/local/share/sched/catalogs/freq.dat 4cm secondary focus: not easy to get below 8300. Setup group: 2 Station: EB_VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 1 Sample rate: 16.000 Number of channels: 8 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= 7800.00 7800.00 7800.00 7800.00 7800.00 7800.00 7800.00 7800.00 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 The following frequency sets based on this setup were used. Frequency Set: 2 Setup file default. Used pcal sets: 1 LO sum= 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 BBC fr= 605.49 605.49 613.49 613.49 621.49 621.49 629.49 629.49 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 SOURCE LIST -- Search for stellar lensing of 3C435B 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) * 3C435B 21 26 37.690191 * 21 29 06.098400 21 29 10.149028 07 19 45.50224 * 07 32 54.82900 07 33 15.74993 From catalog imbedded in main SCHED input file. * J2125+0441 21 22 58.839923 * 21 25 29.255400 21 25 33.389936 04 28 36.06805 * 04 41 35.52600 04 41 56.05684 From catalog imbedded in main SCHED input file. * J2123+1007 21 20 47.087156 * 21 23 13.358660 21 23 17.321688 09 55 01.67487 * 10 07 54.94581 10 08 15.17852 From catalog imbedded in main SCHED input file. * 2134+00 21 34 05.207388 * 21 36 38.586323 21 36 42.834718 00 28 25.08121 * 00 41 54.21403 00 42 15.94652 From catalog imbedded in main SCHED input file. USNO - Ref Frame 1995-1, Eubanks Mar 1995 * BL_LAC 22 00 39.362434 * 22 02 43.291300 22 02 45.957344 42 02 08.59287 * 42 16 39.98200 42 17 07.21213 From catalog imbedded in main SCHED input file. 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) 3C435B 21.2 J2125+0441 19.0 J2123+1007 24.2 2134+00 14.2 BL_LAC 54.5 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