COVER INFORMATION Station: HART (Code Hh ) Experiment: Imaging the highest redshift radio quasar J1427+3312 at z=6.12 Exp. Code: EF020A Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Sandor Frey Address: FOMI Satellite Geodetic Observatory P.O. Box 585 H-1592 Budapest Hungary Phone: +36 27 374980 EMAIL: frey@sgo.fomi.hu Fax: +36 27 374982 Phone during observation: +36 27 374980 Observing mode: 6cm phase-referencing 1 Gb/s Notes: WSRT data recorded during this experiment are requested Schedule for HART (Code Hh ) Page 2 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sat 3 Mar 2007 Day 62 --- Next scan frequencies: 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 Next BBC frequencies: 342.49 342.49 342.49 342.49 374.49 374.49 374.49 374.49 406.49 406.49 406.49 406.49 438.49 438.49 438.49 438.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 22 00 00 J1407+2827 10 35 56 15.7 46.7 -3.5 0.0 0 1 1 0 22 00 00 22 06 00 =1404+286 10 41 57 16.6 45.8 -3.4 0.0 360 F 1 46 22 00 04 22 07 10 J1422+3223 10 43 07 11.7 44.9 -3.7 0.0 35 1 1 46 22 07 10 22 08 10 =1420+326 10 44 07 11.9 44.8 -3.6 0.0 60 F 1 54 22 07 14 22 08 10 J1428+3259 10 44 07 10.6 45.1 -3.7 0.0 -29 1 1 54 22 08 10 22 09 30 --- 10 45 27 10.8 44.9 -3.7 0.0 51 F 1 65 22 08 14 22 09 30 J1427+3312 10 45 27 10.7 44.7 -3.7 0.0 -24 1 1 65 22 09 30 22 14 10 --- 10 50 08 11.5 44.0 -3.6 0.0 256 F 1 101 22 09 34 22 14 39 J1422+3223 10 50 37 12.9 43.8 -3.5 0.0 0 1 1 101 22 14 39 22 15 39 =1420+326 10 51 37 13.1 43.7 -3.5 0.0 60 F 1 108 22 14 43 22 15 39 J1428+3259 10 51 37 11.8 44.0 -3.6 0.0 -29 1 1 108 22 15 39 22 16 59 --- 10 52 57 12.0 43.9 -3.6 0.0 51 F 1 119 22 15 43 22 16 59 J1427+3312 10 52 57 11.9 43.6 -3.6 0.0 -24 1 1 119 22 16 59 22 21 39 --- 10 57 38 12.6 42.9 -3.5 0.0 256 F 1 155 22 17 03 22 22 49 J1422+3223 10 58 48 14.2 42.6 -3.4 0.0 41 1 1 155 22 22 49 22 23 49 =1420+326 10 59 48 14.3 42.5 -3.4 0.0 60 F 1 163 22 22 53 22 23 49 J1428+3259 10 59 48 13.0 42.9 -3.5 0.0 -29 1 1 163 22 23 49 22 25 09 --- 11 01 09 13.2 42.7 -3.5 0.0 51 F 1 173 22 23 53 22 25 09 J1427+3312 11 01 09 13.2 42.4 -3.4 0.0 -24 1 1 173 22 25 09 22 29 49 --- 11 05 49 13.9 41.7 -3.4 0.0 256 F 1 209 22 25 13 22 30 18 J1422+3223 11 06 18 15.3 41.5 -3.3 0.0 0 1 1 209 22 30 18 22 31 18 =1420+326 11 07 18 15.4 41.3 -3.3 0.0 60 F 1 217 22 30 22 Schedule for HART (Code Hh ) Page 3 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sat 3 Mar 2007 Day 62 --- 22 31 18 J1428+3259 11 07 18 14.2 41.7 -3.4 0.0 -29 1 1 217 22 31 18 22 32 38 --- 11 08 39 14.4 41.5 -3.3 0.0 51 F 1 227 22 31 22 22 32 38 J1427+3312 11 08 39 14.3 41.3 -3.3 0.0 -24 1 1 227 22 32 38 22 37 18 --- 11 13 19 15.0 40.6 -3.2 0.0 256 F 1 263 22 32 42 22 38 28 J1422+3223 11 14 30 16.5 40.2 -3.1 0.0 41 1 1 263 22 38 28 22 39 28 =1420+326 11 15 30 16.6 40.0 -3.1 0.0 60 F 1 271 22 38 32 22 39 28 J1428+3259 11 15 30 15.4 40.5 -3.2 0.0 -29 1 1 271 22 39 28 22 40 48 --- 11 16 50 15.6 40.3 -3.2 0.0 51 F 1 281 22 39 32 22 40 48 J1427+3312 11 16 50 15.5 40.0 -3.2 0.0 -24 1 1 281 22 40 48 22 45 28 --- 11 21 31 16.2 39.3 -3.1 0.0 256 F 1 317 22 40 52 22 45 57 J1422+3223 11 22 00 17.6 39.0 -3.0 0.0 0 1 1 317 22 45 57 22 46 57 =1420+326 11 23 00 17.7 38.8 -3.0 0.0 60 F 1 325 22 46 01 22 46 57 J1428+3259 11 23 00 16.5 39.3 -3.1 0.0 -29 1 1 325 22 46 57 22 48 17 --- 11 24 20 16.7 39.1 -3.1 0.0 51 F 1 335 22 47 01 22 48 17 J1427+3312 11 24 20 16.6 38.8 -3.1 0.0 -24 1 1 335 22 48 17 22 52 57 --- 11 29 01 17.2 38.1 -3.0 0.0 256 F 1 372 22 48 21 22 54 07 J1422+3223 11 30 11 18.7 37.6 -2.9 0.0 41 1 1 372 22 54 07 22 55 07 =1420+326 11 31 11 18.8 37.4 -2.9 0.0 60 F 1 379 22 54 11 22 55 07 J1428+3259 11 31 11 17.6 38.0 -3.0 0.0 -29 1 1 379 22 55 07 22 56 27 --- 11 32 31 17.8 37.7 -2.9 0.0 51 F 1 390 22 55 11 22 56 27 J1427+3312 11 32 31 17.7 37.5 -2.9 0.0 -24 1 1 390 22 56 27 23 01 07 --- 11 37 12 18.3 36.7 -2.8 0.0 256 F 1 426 22 56 31 23 01 36 J1422+3223 11 37 41 19.7 36.3 -2.8 0.0 0 1 1 426 23 01 36 23 02 36 =1420+326 11 38 41 19.9 36.1 -2.7 0.0 60 F 1 434 23 01 40 23 02 36 J1428+3259 11 38 41 18.6 36.7 -2.8 0.0 -29 1 1 434 23 02 36 23 03 56 --- 11 40 02 18.8 36.5 -2.8 0.0 51 F 1 444 23 02 40 23 03 56 J1427+3312 11 40 02 18.7 36.2 -2.8 0.0 -24 1 1 444 23 03 56 23 08 36 --- 11 44 42 19.3 35.4 -2.7 0.0 256 F 1 480 23 04 00 23 09 46 J1422+3223 11 45 53 20.8 34.9 -2.6 0.0 41 1 1 480 23 09 46 23 10 46 =1420+326 11 46 53 20.9 34.7 -2.6 0.0 60 F 1 488 23 09 50 Schedule for HART (Code Hh ) Page 4 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sat 3 Mar 2007 Day 62 --- 23 10 46 J1428+3259 11 46 53 19.7 35.3 -2.7 0.0 -29 1 1 488 23 10 46 23 12 06 --- 11 48 13 19.9 35.0 -2.7 0.0 51 F 1 498 23 10 50 23 12 06 J1427+3312 11 48 13 19.8 34.8 -2.7 0.0 -24 1 1 498 23 12 06 23 16 46 --- 11 52 54 20.4 34.0 -2.6 0.0 256 F 1 534 23 12 10 23 17 14 J1422+3223 11 53 23 21.7 33.5 -2.5 0.0 0 1 1 534 23 17 14 23 18 14 =1420+326 11 54 23 21.9 33.3 -2.5 0.0 60 F 1 542 23 17 18 23 18 14 J1428+3259 11 54 23 20.7 34.0 -2.6 0.0 -29 1 1 542 23 18 14 23 19 34 --- 11 55 43 20.8 33.7 -2.5 0.0 51 F 1 552 23 18 18 23 19 34 J1427+3312 11 55 43 20.7 33.5 -2.5 0.0 -24 1 1 552 23 19 34 23 24 14 --- 12 00 24 21.3 32.6 -2.5 0.0 256 F 1 588 23 19 38 23 24 14 J1428+3259 12 00 24 21.4 32.9 -2.5 0.0 -24 1 1 588 23 24 14 23 25 34 --- 12 01 44 21.6 32.6 -2.4 0.0 56 F 1 599 23 24 18 23 25 34 J1407+2827 12 01 44 27.9 31.2 -2.1 0.0 -38 1 1 599 23 25 34 23 30 34 =1404+286 12 06 45 28.5 30.2 -2.0 0.0 262 F 1 637 23 25 38 23 31 24 J1331+3030 12 07 35 30.2 20.9 -1.4 0.0 5 1 1 637 23 31 24 23 39 24 =1328+307 12 15 36 30.8 19.0 -1.3 0.0 480 F 1 699 23 31 28 23 40 34 J1422+3223 12 16 46 24.5 29.0 -2.1 0.0 18 1 1 699 23 40 34 23 41 34 =1420+326 12 17 47 24.6 28.8 -2.1 0.0 60 F 1 707 23 40 38 23 41 34 J1428+3259 12 17 47 23.5 29.6 -2.2 0.0 -29 1 1 707 23 41 34 23 42 54 --- 12 19 07 23.6 29.3 -2.2 0.0 51 F 1 717 23 41 38 23 42 54 J1427+3312 12 19 07 23.5 29.1 -2.1 0.0 -24 1 1 717 23 42 54 23 47 34 --- 12 23 48 24.0 28.2 -2.1 0.0 256 F 1 754 23 42 58 23 48 04 J1422+3223 12 24 17 25.3 27.5 -2.0 0.0 1 1 1 754 23 48 04 23 49 04 =1420+326 12 25 17 25.4 27.3 -2.0 0.0 60 F 1 761 23 48 08 23 49 04 J1428+3259 12 25 17 24.3 28.1 -2.1 0.0 -29 1 1 761 23 49 04 23 50 24 --- 12 26 38 24.4 27.8 -2.0 0.0 51 F 1 772 23 49 08 23 50 24 J1427+3312 12 26 38 24.3 27.6 -2.0 0.0 -24 1 1 772 23 50 24 23 55 04 --- 12 31 18 24.7 26.7 -1.9 0.0 256 F 1 808 23 50 28 23 56 14 J1422+3223 12 32 29 26.1 25.8 -1.8 0.0 41 1 1 808 23 56 14 23 57 14 =1420+326 12 33 29 26.2 25.6 -1.8 0.0 60 F 1 815 23 56 18 Schedule for HART (Code Hh ) Page 5 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sat 3 Mar 2007 Day 62 --- 23 57 14 J1428+3259 12 33 29 25.1 26.5 -1.9 0.0 -29 1 1 815 23 57 14 23 58 34 --- 12 34 49 25.2 26.2 -1.9 0.0 51 F 1 826 23 57 18 --- Start: Sat 3 Mar 2007 Day 62 -- Stop: Sun 4 Mar 2007 Day 63 --- 23 58 34 J1427+3312 12 34 49 25.1 26.0 -1.9 0.0 -24 1 1 826 23 58 34 00 03 14 --- 12 39 30 25.6 25.0 -1.8 0.0 256 F 1 862 23 58 38 00 03 44 J1422+3223 12 40 00 26.8 24.2 -1.7 0.0 1 1 1 862 00 03 44 00 04 44 =1420+326 12 41 00 26.9 24.0 -1.7 0.0 60 F 1 870 00 03 48 00 04 44 J1428+3259 12 41 00 25.8 24.9 -1.8 0.0 -29 1 1 870 00 04 44 00 06 04 --- 12 42 20 26.0 24.6 -1.8 0.0 51 F 1 880 00 04 48 00 06 04 J1427+3312 12 42 20 25.8 24.4 -1.8 0.0 -24 1 1 880 00 06 04 00 10 44 --- 12 47 01 26.2 23.4 -1.7 0.0 256 F 1 916 00 06 08 00 11 54 J1422+3223 12 48 11 27.5 22.5 -1.6 0.0 41 1 1 916 00 11 54 00 12 54 =1420+326 12 49 12 27.6 22.3 -1.6 0.0 60 F 1 924 00 11 58 00 12 54 J1428+3259 12 49 12 26.6 23.2 -1.7 0.0 -29 1 1 924 00 12 54 00 14 14 --- 12 50 32 26.7 22.9 -1.6 0.0 51 F 1 934 00 12 58 00 14 14 J1427+3312 12 50 32 26.6 22.7 -1.6 0.0 -24 1 1 934 00 14 14 00 18 54 --- 12 55 13 27.0 21.7 -1.5 0.0 256 F 1 970 00 14 18 00 19 25 J1422+3223 12 55 44 28.2 20.8 -1.5 0.0 2 1 1 970 00 19 25 00 20 25 =1420+326 12 56 44 28.3 20.6 -1.4 0.0 60 F 1 978 00 19 29 00 20 25 J1428+3259 12 56 44 27.2 21.6 -1.5 0.0 -29 1 1 978 00 20 25 00 21 45 --- 12 58 04 27.3 21.3 -1.5 0.0 51 F 1 988 00 20 29 00 21 45 J1427+3312 12 58 04 27.2 21.1 -1.5 0.0 -24 1 1 988 00 21 45 00 26 25 --- 13 02 45 27.6 20.1 -1.4 0.0 256 F 1 1024 00 21 49 00 27 35 J1422+3223 13 03 55 28.8 19.0 -1.3 0.0 41 1 1 1024 00 27 35 00 28 35 =1420+326 13 04 55 28.9 18.8 -1.3 0.0 60 F 1 1032 00 27 39 00 28 35 J1428+3259 13 04 55 27.9 19.8 -1.4 0.0 -29 1 1 1032 00 28 35 00 29 55 --- 13 06 15 28.0 19.5 -1.4 0.0 51 F 1 1043 00 28 39 00 29 55 J1427+3312 13 06 15 27.8 19.3 -1.4 0.0 -24 1 1 1043 00 29 55 00 34 35 --- 13 10 56 28.2 18.2 -1.3 0.0 256 F 1 1079 00 29 59 Schedule for HART (Code Hh ) Page 6 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sun 4 Mar 2007 Day 63 --- 00 35 07 J1422+3223 13 11 28 29.3 17.3 -1.2 0.0 3 1 1 1079 00 35 07 00 36 07 =1420+326 13 12 28 29.4 17.0 -1.2 0.0 60 F 1 1086 00 35 11 00 36 07 J1428+3259 13 12 28 28.4 18.1 -1.3 0.0 -29 1 1 1086 00 36 07 00 37 27 --- 13 13 48 28.5 17.8 -1.2 0.0 51 F 1 1097 00 36 11 00 37 27 J1427+3312 13 13 48 28.4 17.6 -1.2 0.0 -24 1 1 1097 00 37 27 00 42 07 --- 13 18 29 28.7 16.5 -1.2 0.0 256 F 1 1133 00 37 31 00 43 17 J1422+3223 13 19 39 29.8 15.4 -1.1 0.0 41 1 1 1133 00 43 17 00 44 17 =1420+326 13 20 39 29.9 15.1 -1.0 0.0 60 F 1 1141 00 43 21 00 44 17 J1428+3259 13 20 39 29.0 16.2 -1.1 0.0 -29 1 1 1141 00 44 17 00 45 37 --- 13 21 59 29.1 15.9 -1.1 0.0 51 F 1 1151 00 44 21 00 45 37 J1427+3312 13 21 59 28.9 15.7 -1.1 0.0 -24 1 1 1151 00 45 37 00 50 17 --- 13 26 40 29.2 14.7 -1.0 0.0 256 F 1 1187 00 45 41 00 50 49 J1422+3223 13 27 13 30.3 13.6 -0.9 0.0 3 1 1 1187 00 50 49 00 51 49 =1420+326 13 28 13 30.3 13.4 -0.9 0.0 60 F 1 1195 00 50 53 00 51 49 J1428+3259 13 28 13 29.4 14.5 -1.0 0.0 -29 1 1 1195 00 51 49 00 53 09 --- 13 29 33 29.5 14.2 -1.0 0.0 51 F 1 1205 00 51 53 00 53 09 J1427+3312 13 29 33 29.3 14.0 -1.0 0.0 -24 1 1 1205 00 53 09 00 57 49 --- 13 34 14 29.6 12.9 -0.9 0.0 256 F 1 1241 00 53 13 00 57 49 J1428+3259 13 34 14 29.8 13.1 -0.9 0.0 -24 1 1 1241 00 57 49 00 59 09 --- 13 35 34 29.8 12.8 -0.9 0.0 56 F 1 1252 00 57 53 01 00 10 J1407+2827 13 36 35 35.2 8.3 -0.5 0.0 23 1 1 1252 01 00 10 01 08 10 =1404+286 13 44 36 35.4 6.1 -0.4 0.0 480 F 1 1313 01 00 14 01 09 20 J1422+3223 13 45 46 31.1 9.1 -0.6 0.0 35 1 1 1313 01 09 20 01 10 20 =1420+326 13 46 47 31.1 8.9 -0.6 0.0 60 F 1 1321 01 09 24 01 10 20 J1428+3259 13 46 47 30.3 10.1 -0.7 0.0 -29 1 1 1321 01 10 20 01 11 40 --- 13 48 07 30.4 9.8 -0.7 0.0 51 F 1 1332 01 10 24 01 11 40 J1427+3312 13 48 07 30.2 9.6 -0.7 0.0 -24 1 1 1332 01 11 40 01 16 20 --- 13 52 48 30.3 8.5 -0.6 0.0 256 F 1 1368 01 11 44 01 16 54 J1422+3223 13 53 22 31.3 7.3 -0.5 0.0 5 1 1 1368 01 16 54 01 17 54 =1420+326 13 54 22 31.4 7.0 -0.5 0.0 60 F 1 1375 01 16 58 Schedule for HART (Code Hh ) Page 7 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sun 4 Mar 2007 Day 63 --- 01 17 54 J1428+3259 13 54 22 30.6 8.3 -0.6 0.0 -29 1 1 1375 01 17 54 01 19 14 --- 13 55 42 30.6 8.0 -0.5 0.0 51 F 1 1386 01 17 58 01 19 14 J1427+3312 13 55 42 30.4 7.8 -0.5 0.0 -24 1 1 1386 01 19 14 01 23 54 --- 14 00 23 30.6 6.7 -0.5 0.0 256 F 1 1422 01 19 18 01 25 04 J1422+3223 14 01 33 31.5 5.3 -0.4 0.0 41 1 1 1422 01 25 04 01 26 04 =1420+326 14 02 33 31.6 5.0 -0.3 0.0 60 F 1 1430 01 25 08 01 26 04 J1428+3259 14 02 33 30.8 6.3 -0.4 0.0 -29 1 1 1430 01 26 04 01 27 24 --- 14 03 53 30.9 6.0 -0.4 0.0 51 F 1 1440 01 26 08 01 27 24 J1427+3312 14 03 53 30.7 5.9 -0.4 0.0 -24 1 1 1440 01 27 24 01 32 04 --- 14 08 34 30.8 4.7 -0.3 0.0 256 F 1 1476 01 27 28 01 32 39 J1422+3223 14 09 09 31.7 3.4 -0.2 0.0 6 1 1 1476 01 32 39 01 33 39 =1420+326 14 10 09 31.7 3.1 -0.2 0.0 60 F 1 1484 01 32 43 01 33 39 J1428+3259 14 10 09 31.0 4.5 -0.3 0.0 -29 1 1 1484 01 33 39 01 34 59 --- 14 11 30 31.0 4.1 -0.3 0.0 51 F 1 1494 01 33 43 01 34 59 J1427+3312 14 11 30 30.8 4.0 -0.3 0.0 -24 1 1 1494 01 34 59 01 39 39 --- 14 16 10 30.9 2.9 -0.2 0.0 256 F 1 1530 01 35 03 01 40 49 J1422+3223 14 17 21 31.7 1.4 -0.1 0.0 41 1 1 1530 01 40 49 01 41 49 =1420+326 14 18 21 31.8 1.1 -0.1 0.0 60 F 1 1538 01 40 53 01 41 49 J1428+3259 14 18 21 31.1 2.5 -0.2 0.0 -29 1 1 1538 01 41 49 01 43 09 --- 14 19 41 31.1 2.1 -0.1 0.0 51 F 1 1548 01 41 53 01 43 09 J1427+3312 14 19 41 30.9 2.0 -0.1 0.0 -24 1 1 1548 01 43 09 01 47 49 --- 14 24 22 30.9 0.9 -0.1 0.0 256 F 1 1584 01 43 13 01 48 25 J1422+3223 14 24 58 31.8 359.5 0.0 0.0 7 1 1 1584 01 48 25 01 49 25 =1420+326 14 25 58 31.8 359.2 0.1 0.0 60 F 1 1592 01 48 29 01 49 25 J1428+3259 14 25 58 31.2 0.6 0.0 0.0 -29 1 1 1592 01 49 25 01 50 45 --- 14 27 18 31.2 0.3 0.0 0.0 51 F 1 1602 01 49 29 01 50 45 J1427+3312 14 27 18 30.9 0.2 0.0 0.0 -24 1 1 1602 01 50 45 01 55 25 --- 14 31 59 30.9 359.0 0.1 0.0 256 F 1 1639 01 50 49 01 56 35 J1422+3223 14 33 09 31.7 357.4 0.2 0.0 41 1 1 1639 01 56 35 01 57 35 =1420+326 14 34 09 31.7 357.2 0.2 0.0 60 F 1 1646 01 56 39 Schedule for HART (Code Hh ) Page 8 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sun 4 Mar 2007 Day 63 --- 01 57 35 J1428+3259 14 34 09 31.1 358.6 0.1 0.0 -29 1 1 1646 01 57 35 01 58 55 --- 14 35 30 31.1 358.3 0.1 0.0 51 F 1 1657 01 57 39 01 58 55 J1427+3312 14 35 30 30.9 358.2 0.1 0.0 -24 1 1 1657 01 58 55 02 03 35 --- 14 40 10 30.9 357.0 0.2 0.0 256 F 1 1693 01 58 59 02 04 12 J1422+3223 14 40 47 31.6 355.5 0.3 0.0 8 1 1 1693 02 04 12 02 05 12 =1420+326 14 41 48 31.6 355.3 0.3 0.0 60 F 1 1701 02 04 16 02 05 12 J1428+3259 14 41 48 31.1 356.7 0.2 0.0 -29 1 1 1701 02 05 12 02 06 32 --- 14 43 08 31.1 356.4 0.2 0.0 51 F 1 1711 02 05 16 02 06 32 J1427+3312 14 43 08 30.8 356.3 0.3 0.0 -24 1 1 1711 02 06 32 02 11 12 --- 14 47 49 30.7 355.2 0.3 0.0 256 F 1 1747 02 06 36 02 12 22 J1422+3223 14 48 59 31.4 353.5 0.4 0.0 41 1 1 1747 02 12 22 02 13 22 =1420+326 14 49 59 31.4 353.3 0.5 0.0 60 F 1 1755 02 12 26 02 13 22 J1428+3259 14 49 59 30.9 354.7 0.4 0.0 -29 1 1 1755 02 13 22 02 14 42 --- 14 51 19 30.9 354.4 0.4 0.0 51 F 1 1765 02 13 26 02 14 42 J1427+3312 14 51 19 30.7 354.3 0.4 0.0 -24 1 1 1765 02 14 42 02 19 22 --- 14 56 00 30.6 353.2 0.5 0.0 256 F 1 1801 02 14 46 02 20 00 J1422+3223 14 56 38 31.2 351.7 0.6 0.0 9 1 1 1801 02 20 00 02 21 00 =1420+326 14 57 38 31.2 351.4 0.6 0.0 60 F 1 1809 02 20 04 02 21 00 J1428+3259 14 57 38 30.7 352.9 0.5 0.0 -29 1 1 1809 02 21 00 02 22 20 --- 14 58 58 30.7 352.6 0.5 0.0 51 F 1 1819 02 21 04 02 22 20 J1427+3312 14 58 58 30.5 352.5 0.5 0.0 -24 1 1 1819 02 22 20 02 27 00 --- 15 03 39 30.3 351.4 0.6 0.0 256 F 1 1855 02 22 24 02 27 00 J1428+3259 15 03 39 30.6 351.4 0.6 0.0 -24 1 1 1855 02 27 00 02 28 20 --- 15 04 59 30.5 351.1 0.6 0.0 56 F 1 1866 02 27 04 02 28 20 J1407+2827 15 04 59 34.0 344.7 1.0 0.0 -38 1 1 1866 02 28 20 02 34 20 =1404+286 15 11 00 33.6 343.2 1.1 0.0 322 F 1 1912 02 28 24 02 35 43 J1331+3030 15 12 24 28.7 335.2 1.7 0.0 38 1 1 1912 02 35 43 02 43 43 =1328+307 15 20 25 27.9 333.5 1.8 0.0 480 F 1 1974 02 35 47 02 45 29 J1422+3223 15 22 12 30.1 345.5 1.0 0.0 54 1 1 1974 02 45 29 02 46 29 =1420+326 15 23 12 30.0 345.3 1.0 0.0 60 F 1 1982 02 45 33 Schedule for HART (Code Hh ) Page 9 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sun 4 Mar 2007 Day 63 --- 02 46 29 J1428+3259 15 23 12 29.7 346.8 0.9 0.0 -29 1 1 1982 02 46 29 02 47 49 --- 15 24 32 29.7 346.5 0.9 0.0 51 F 1 1992 02 46 33 02 47 49 J1427+3312 15 24 32 29.4 346.4 0.9 0.0 -24 1 1 1992 02 47 49 02 52 29 --- 15 29 13 29.2 345.3 1.0 0.0 256 F 1 2028 02 47 53 02 53 07 J1422+3223 15 29 51 29.6 343.7 1.1 0.0 9 1 1 2028 02 53 07 02 54 07 =1420+326 15 30 51 29.5 343.5 1.1 0.0 60 F 1 2036 02 53 11 02 54 07 J1428+3259 15 30 51 29.3 345.0 1.0 0.0 -29 1 1 2036 02 54 07 02 55 27 --- 15 32 12 29.2 344.7 1.1 0.0 51 F 1 2046 02 54 11 02 55 27 J1427+3312 15 32 12 29.0 344.7 1.1 0.0 -24 1 1 2046 02 55 27 03 00 07 --- 15 36 52 28.7 343.6 1.1 0.0 256 F 1 2082 02 55 31 03 01 17 J1422+3223 15 38 03 29.1 341.9 1.3 0.0 41 1 1 2082 03 01 17 03 02 17 =1420+326 15 39 03 29.0 341.6 1.3 0.0 60 F 1 2090 03 01 21 03 02 17 J1428+3259 15 39 03 28.8 343.1 1.2 0.0 -29 1 1 2090 03 02 17 03 03 37 --- 15 40 23 28.7 342.8 1.2 0.0 51 F 1 2101 03 02 21 03 03 37 J1427+3312 15 40 23 28.5 342.8 1.2 0.0 -24 1 1 2101 03 03 37 03 08 17 --- 15 45 04 28.2 341.7 1.3 0.0 256 F 1 2137 03 03 41 03 08 55 J1422+3223 15 45 41 28.5 340.1 1.4 0.0 8 1 1 2137 03 08 55 03 09 55 =1420+326 15 46 41 28.4 339.9 1.4 0.0 60 F 1 2144 03 08 59 03 09 55 J1428+3259 15 46 41 28.3 341.4 1.3 0.0 -29 1 1 2144 03 09 55 03 11 15 --- 15 48 02 28.2 341.1 1.3 0.0 51 F 1 2155 03 09 59 03 11 15 J1427+3312 15 48 02 27.9 341.1 1.3 0.0 -24 1 1 2155 03 11 15 03 15 55 --- 15 52 42 27.6 340.0 1.4 0.0 256 F 1 2191 03 11 19 03 17 05 J1422+3223 15 53 52 27.9 338.3 1.5 0.0 41 1 1 2191 03 17 05 03 18 05 =1420+326 15 54 53 27.8 338.1 1.5 0.0 60 F 1 2199 03 17 09 03 18 05 J1428+3259 15 54 53 27.7 339.6 1.4 0.0 -29 1 1 2199 03 18 05 03 19 25 --- 15 56 13 27.6 339.3 1.5 0.0 51 F 1 2209 03 18 09 03 19 25 J1427+3312 15 56 13 27.3 339.3 1.5 0.0 -24 1 1 2209 03 19 25 03 24 05 --- 16 00 54 26.9 338.3 1.5 0.0 256 F 1 2245 03 19 29 03 24 41 J1422+3223 16 01 29 27.2 336.6 1.6 0.0 7 1 1 2245 03 24 41 03 25 41 =1420+326 16 02 30 27.1 336.4 1.7 0.0 60 F 1 2253 03 24 45 Schedule for HART (Code Hh ) Page 10 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sun 4 Mar 2007 Day 63 --- 03 25 41 J1428+3259 16 02 30 27.0 337.9 1.6 0.0 -29 1 1 2253 03 25 41 03 27 01 --- 16 03 50 26.9 337.6 1.6 0.0 51 F 1 2263 03 25 45 03 27 01 J1427+3312 16 03 50 26.7 337.6 1.6 0.0 -24 1 1 2263 03 27 01 03 31 41 --- 16 08 31 26.3 336.6 1.7 0.0 256 F 1 2299 03 27 05 03 32 51 J1422+3223 16 09 41 26.4 334.9 1.8 0.0 41 1 1 2299 03 32 51 03 33 51 =1420+326 16 10 41 26.3 334.7 1.8 0.0 60 F 1 2307 03 32 55 03 33 51 J1428+3259 16 10 41 26.3 336.2 1.7 0.0 -29 1 1 2307 03 33 51 03 35 11 --- 16 12 01 26.2 335.9 1.7 0.0 51 F 1 2317 03 33 55 03 35 11 J1427+3312 16 12 01 26.0 335.9 1.7 0.0 -24 1 1 2317 03 35 11 03 39 51 --- 16 16 42 25.5 334.9 1.8 0.0 256 F 1 2353 03 35 15 03 40 24 J1422+3223 16 17 16 25.7 333.3 1.9 0.0 5 1 1 2353 03 40 24 03 41 24 =1420+326 16 18 16 25.6 333.1 1.9 0.0 60 F 1 2361 03 40 28 03 41 24 J1428+3259 16 18 16 25.6 334.6 1.8 0.0 -29 1 1 2361 03 41 24 03 42 44 --- 16 19 36 25.5 334.3 1.9 0.0 51 F 1 2371 03 41 28 03 42 44 J1427+3312 16 19 36 25.2 334.3 1.9 0.0 -24 1 1 2371 03 42 44 03 47 24 --- 16 24 17 24.8 333.4 1.9 0.0 256 F 1 2408 03 42 48 03 48 34 J1422+3223 16 25 27 24.8 331.7 2.0 0.0 41 1 1 2408 03 48 34 03 49 34 =1420+326 16 26 27 24.7 331.5 2.1 0.0 60 F 1 2415 03 48 38 03 49 34 J1428+3259 16 26 27 24.8 332.9 2.0 0.0 -29 1 1 2415 03 49 34 03 50 54 --- 16 27 47 24.7 332.7 2.0 0.0 51 F 1 2426 03 49 38 03 50 54 J1427+3312 16 27 47 24.4 332.7 2.0 0.0 -24 1 1 2426 03 50 54 03 55 34 --- 16 32 28 23.9 331.7 2.1 0.0 256 F 1 2462 03 50 58 03 56 05 J1422+3223 16 32 59 24.0 330.2 2.2 0.0 2 1 1 2462 03 56 05 03 57 05 =1420+326 16 33 59 23.9 330.0 2.2 0.0 60 F 1 2470 03 56 09 03 57 05 J1428+3259 16 33 59 24.0 331.4 2.1 0.0 -29 1 1 2470 03 57 05 03 58 25 --- 16 35 19 23.9 331.2 2.1 0.0 51 F 1 2480 03 57 09 03 58 25 J1427+3312 16 35 19 23.6 331.2 2.1 0.0 -24 1 1 2480 03 58 25 04 03 05 --- 16 40 00 23.1 330.3 2.2 0.0 256 F 1 2516 03 58 29 04 03 05 J1428+3259 16 40 00 23.4 330.2 2.2 0.0 -24 1 1 2516 04 03 05 04 04 25 --- 16 41 20 23.2 330.0 2.2 0.0 56 F 1 2526 04 03 09 Schedule for HART (Code Hh ) Page 11 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sun 4 Mar 2007 Day 63 --- 04 05 11 J1407+2827 16 42 06 24.2 322.9 2.6 0.0 8 1 1 2526 04 05 11 04 11 41 =1404+286 16 48 38 23.3 321.7 2.7 0.0 390 F 1 2577 04 05 15 04 12 51 J1422+3223 16 49 48 22.1 327.0 2.4 0.0 35 1 1 2577 04 12 51 04 13 51 =1420+326 16 50 48 21.9 326.8 2.5 0.0 60 F 1 2584 04 12 55 04 13 51 J1428+3259 16 50 48 22.1 328.2 2.4 0.0 -29 1 1 2584 04 13 51 04 15 11 --- 16 52 08 21.9 327.9 2.4 0.0 51 F 1 2595 04 13 55 04 15 11 J1427+3312 16 52 08 21.7 328.0 2.4 0.0 -24 1 1 2595 04 15 11 04 19 51 --- 16 56 49 21.1 327.1 2.5 0.0 256 F 1 2631 04 15 15 04 20 20 J1422+3223 16 57 18 21.1 325.6 2.6 0.0 0 1 1 2631 04 20 20 04 21 20 =1420+326 16 58 18 21.0 325.4 2.6 0.0 60 F 1 2639 04 20 24 04 21 20 J1428+3259 16 58 18 21.2 326.8 2.5 0.0 -29 1 1 2639 04 21 20 04 22 40 --- 16 59 38 21.0 326.6 2.5 0.0 51 F 1 2649 04 21 24 04 22 40 J1427+3312 16 59 38 20.8 326.6 2.5 0.0 -24 1 1 2649 04 22 40 04 27 20 --- 17 04 19 20.2 325.8 2.6 0.0 256 F 1 2685 04 22 44 04 28 30 J1422+3223 17 05 29 20.1 324.1 2.7 0.0 41 1 1 2685 04 28 30 04 29 30 =1420+326 17 06 29 19.9 324.0 2.7 0.0 60 F 1 2693 04 28 34 04 29 30 J1428+3259 17 06 29 20.2 325.3 2.6 0.0 -29 1 1 2693 04 29 30 04 30 50 --- 17 07 50 20.0 325.1 2.7 0.0 51 F 1 2703 04 29 34 04 30 50 J1427+3312 17 07 50 19.8 325.2 2.7 0.0 -24 1 1 2703 04 30 50 04 35 30 --- 17 12 30 19.2 324.3 2.7 0.0 256 F 1 2739 04 30 54 04 35 59 J1422+3223 17 12 59 19.0 322.8 2.8 0.0 0 1 1 2739 04 35 59 04 36 59 =1420+326 17 13 59 18.9 322.7 2.9 0.0 60 F 1 2747 04 36 03 04 36 59 J1428+3259 17 13 59 19.2 324.0 2.8 0.0 -29 1 1 2747 04 36 59 04 38 19 --- 17 15 20 19.0 323.8 2.8 0.0 51 F 1 2757 04 37 03 04 38 19 J1427+3312 17 15 20 18.8 323.9 2.8 0.0 -24 1 1 2757 04 38 19 04 42 59 --- 17 20 00 18.2 323.1 2.9 0.0 256 F 1 2793 04 38 23 04 44 09 J1422+3223 17 21 11 17.9 321.4 3.0 0.0 41 1 1 2793 04 44 09 04 45 09 =1420+326 17 22 11 17.8 321.3 3.0 0.0 60 F 1 2801 04 44 13 04 45 09 J1428+3259 17 22 11 18.1 322.6 2.9 0.0 -29 1 1 2801 04 45 09 04 46 29 --- 17 23 31 17.9 322.4 2.9 0.0 51 F 1 2811 04 45 13 Schedule for HART (Code Hh ) Page 12 Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sun 4 Mar 2007 Day 63 --- 04 46 29 J1427+3312 17 23 31 17.7 322.5 2.9 0.0 -24 1 1 2811 04 46 29 04 51 09 --- 17 28 12 17.0 321.7 3.0 0.0 256 F 1 2848 04 46 33 04 51 38 J1422+3223 17 28 41 16.9 320.2 3.1 0.0 0 1 1 2848 04 51 38 04 52 38 =1420+326 17 29 41 16.7 320.1 3.1 0.0 60 F 1 2855 04 51 42 04 52 38 J1428+3259 17 29 41 17.1 321.4 3.0 0.0 -29 1 1 2855 04 52 38 04 53 58 --- 17 31 01 16.9 321.2 3.0 0.0 51 F 1 2866 04 52 42 04 53 58 J1427+3312 17 31 01 16.6 321.3 3.1 0.0 -24 1 1 2866 04 53 58 04 58 38 --- 17 35 42 16.0 320.5 3.1 0.0 256 F 1 2902 04 54 02 04 58 38 J1428+3259 17 35 42 16.2 320.4 3.1 0.0 -24 1 1 2902 04 58 38 05 00 00 --- 17 37 04 16.0 320.2 3.1 0.0 58 F 1 2912 04 58 42 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: ef020a.6cm Matches group hh6cm in /usr/local/sched/catalogs/freq.dat Values confirmed by E-mail Jonathan Quick 221105 (CR) Setup group: 10 Station: HART Total bit rate: 1024 Format: MKIV1:2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 Speedup factor: 0.50 Disk used to record data. 1st LO= 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 Net SB= L L U U L L U U L L U U L L U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 7 BBC SB= L L U U L L U U L L U U L L U U IF = 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N The following frequency sets based on this setup were used. Frequency Set: 10 Setup file default. No pcal detection. LO sum= 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 BBC fr= 342.49 342.49 342.49 342.49 374.49 374.49 374.49 374.49 406.49 406.49 406.49 406.49 438.49 438.49 438.49 438.49 Bandwd= 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off SOURCE LIST -- Imaging the highest redshift radio quasar J1427+3312 at z=6.12 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) Error (B1950) (J2000) (Date) (mas) * J1428+3259 14 25 58.997674 * 14 28 06.704300 14 28 26.420457 0.00 33 12 58.42589 * 32 59 35.78100 32 57 18.61667 0.00 From catalog imbedded in main SCHED input file. coords. from Wrobel et al. 2005, AJ 130, 923 1.134 scan hours, 35.129 baseline hours above horizon. * J1427+3312 14 25 30.963729 * 14 27 38.524400 14 27 58.227093 0.00 33 26 05.87505 * 33 12 42.00700 33 10 24.65554 0.00 From catalog imbedded in main SCHED input file. coords. from Ciliegi et al. 1999, MNRAS 302, 222 3.578 scan hours, 140.931 baseline hours above horizon. * J1331+3030 13 28 49.657756 * 13 31 08.288048 13 31 29.855610 0.37 1328+307 30 45 58.64060 * 30 30 32.95924 30 28 01.76731 0.47 3C286 /usr/local/sched/catalogs/sources.vlba J1331+30 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.267 scan hours, 10.800 baseline hours above horizon. * J1407+2827 14 04 45.615156 * 14 07 00.394414 14 07 21.170929 0.23 1404+286 28 41 29.23520 * 28 27 14.69023 28 24 51.92599 0.40 J1407+28 /usr/local/sched/catalogs/sources.vlba OQ208 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.525 scan hours, 20.861 baseline hours above horizon. * J1422+3223 14 20 21.232064 * 14 22 30.378954 14 22 50.326987 0.27 1420+326 32 36 47.54371 * 32 23 10.44016 32 20 51.58763 0.44 J1422+32 /usr/local/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.767 scan hours, 31.832 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) J1428+3259 124.6 J1427+3312 124.6 J1331+3030 136.8 J1407+2827 130.3 J1422+3223 125.9 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