COVER INFORMATION Station: EFLSBERG (Code Ef ) Experiment: Snapshot Ionospheric Testing Observations Exp. Code: N05L2 Schedule Version: 1.20 Processed by SCHED version: 6.01 Release: Late March 2005 PI: James M Anderson Address: Joint Institute for VLBI in Europe Oude Hoogeveensedijk 4 7991 PD Dwingeloo The Netherlands Phone: +31 (0)521 596 542 EMAIL: anderson@jive.nl Fax: +31 (0)521 596 539 Phone during observation: +31 (0)521 596 500 Observing mode: Snapshot observations of sources at 18cm (256 Mb/s) Notes: ALBUS Ionospheric modeling test observations Fringe Finder is 3C273B, which is very strong Phase referencing is too fast for JODRELL1 All targets are strong Schedule for EFLSBERG (Code Ef ) Page 2 Snapshot Ionospheric Testing Observations 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) ---------------------------------------------------------------------------------------- --- Thu 2 Jun 2005 Day 153 --- Next scan frequencies: 1637.99 1637.99 1645.99 1645.99 1653.99 1653.99 1661.99 1661.99 Next BBC frequencies: 127.99 127.99 135.99 135.99 143.99 143.99 151.99 151.99 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 16 00 00 3C273B 09 12 25 26.2 122.4 -3.3 -32.5 0 1 1 0 16 00 00 16 05 20 --- 09 17 46 26.9 123.7 -3.2 -32.0 320 F 1 0 16 08 20 J1215-1731 09 20 46 11.8 137.6 -2.9 -26.7 98 1 1 0 16 08 20 16 09 20 =1213-172 09 21 47 11.9 137.8 -2.9 -26.6 60 F 1 0 16 11 00 J1215-1731 09 23 27 12.1 138.2 -2.9 -26.4 82 1 1 0 16 11 00 16 12 40 =1213-172 09 25 07 12.3 138.5 -2.8 -26.2 100 F 1 0 16 14 20 J1215-1731 09 26 47 12.4 138.9 -2.8 -26.0 82 1 1 0 16 14 20 16 16 00 =1213-172 09 28 28 12.6 139.3 -2.8 -25.8 100 F 1 0 16 16 00 J1159-2148 09 28 28 10.3 144.6 -2.5 -23.4 -42 1 1 0 16 16 00 16 18 00 =1157-215 09 30 28 10.5 145.0 -2.5 -23.1 78 F 1 0 16 18 00 J1215-1731 09 30 28 12.8 139.7 -2.8 -25.5 -42 1 1 0 16 18 00 16 20 00 =1213-172 09 32 28 13.0 140.2 -2.7 -25.3 78 F 1 0 16 20 00 J1159-2148 09 32 28 10.6 145.4 -2.5 -22.9 -41 1 1 0 16 20 00 16 22 00 =1157-215 09 34 29 10.8 145.9 -2.4 -22.6 79 F 1 0 16 22 00 J1215-1731 09 34 29 13.2 140.6 -2.7 -25.0 -41 1 1 0 16 22 00 16 24 00 =1213-172 09 36 29 13.4 141.0 -2.7 -24.8 79 F 1 0 16 25 00 J1159-2148 09 37 29 11.1 146.5 -2.4 -22.2 18 1 1 0 16 25 00 16 26 00 =1157-215 09 38 29 11.2 146.8 -2.4 -22.1 60 F 1 0 16 26 00 J1212-2221 09 38 29 9.6 144.3 -2.6 -23.6 -31 1 1 0 16 26 00 16 27 40 =1209-220 09 40 10 9.7 144.7 -2.5 -23.4 69 F 1 0 16 27 40 J1159-2148 09 40 10 11.3 147.1 -2.3 -21.8 -31 1 1 0 16 27 40 16 29 20 =1157-215 09 41 50 11.5 147.5 -2.3 -21.6 69 F 1 0 16 29 20 J1212-2221 09 41 50 9.9 145.0 -2.5 -23.2 -31 1 1 0 16 29 20 16 31 00 =1209-220 09 43 30 10.0 145.4 -2.5 -23.0 69 F 1 0 Schedule for EFLSBERG (Code Ef ) Page 3 Snapshot Ionospheric Testing Observations 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) ---------------------------------------------------------------------------------------- --- Thu 2 Jun 2005 Day 153 --- 16 31 00 J1159-2148 09 43 30 11.6 147.9 -2.3 -21.4 -31 1 1 0 16 31 00 16 32 40 =1157-215 09 45 10 11.7 148.2 -2.2 -21.1 69 F 1 0 16 32 40 J1212-2221 09 45 10 10.2 145.8 -2.5 -22.8 -31 1 1 0 16 32 40 16 34 20 =1209-220 09 46 51 10.3 146.1 -2.4 -22.5 69 F 1 0 16 34 20 J1159-2148 09 46 51 11.9 148.6 -2.2 -20.9 -31 1 1 0 16 34 20 16 36 00 =1157-215 09 48 31 12.0 149.0 -2.2 -20.7 69 F 1 0 16 36 00 J1159-2228 09 48 31 11.5 149.4 -2.2 -20.5 -20 1 1 0 16 36 00 16 37 40 =1156-221 09 50 11 11.6 149.7 -2.2 -20.3 80 F 1 0 16 37 40 J1159-2148 09 50 11 12.2 149.3 -2.2 -20.4 -20 1 1 0 16 37 40 16 39 20 =1157-215 09 51 52 12.3 149.7 -2.1 -20.2 80 F 1 0 16 39 20 J1159-2228 09 51 52 11.7 150.1 -2.1 -20.1 -20 1 1 0 16 39 20 16 41 00 =1156-221 09 53 32 11.9 150.5 -2.1 -19.8 80 F 1 0 16 41 00 J1159-2148 09 53 32 12.4 150.1 -2.1 -20.0 -20 1 1 0 16 41 00 16 42 40 =1157-215 09 55 12 12.6 150.5 -2.1 -19.7 80 F 1 0 16 42 40 J1159-2228 09 55 12 12.0 150.8 -2.1 -19.6 -20 1 1 0 16 42 40 16 44 20 =1156-221 09 56 52 12.1 151.2 -2.0 -19.4 80 F 1 0 16 44 20 J1159-2148 09 56 52 12.7 150.8 -2.1 -19.5 -20 1 1 0 16 44 20 16 46 00 =1157-215 09 58 33 12.8 151.2 -2.0 -19.3 80 F 1 0 16 47 40 3C273B 10 00 13 32.2 134.3 -2.5 -27.1 1 1 1 0 16 47 40 16 55 40 --- 10 08 14 33.1 136.4 -2.4 -26.0 480 F 1 0 16 58 40 J1224+0330 10 11 15 35.2 137.7 -2.2 -25.4 150 1 1 0 16 58 40 16 59 40 =1222+037 10 12 15 35.3 137.9 -2.2 -25.3 60 F 1 0 16 59 40 J1222+0413 10 12 15 36.2 138.3 -2.2 -25.1 -22 1 1 0 16 59 40 17 01 20 =1219+044 10 13 55 36.4 138.7 -2.1 -24.9 78 F 1 0 17 01 20 J1224+0330 10 13 55 35.5 138.4 -2.2 -25.0 -22 1 1 0 17 01 20 17 03 00 =1222+037 10 15 35 35.6 138.9 -2.2 -24.8 78 F 1 0 17 03 00 J1222+0413 10 15 35 36.5 139.2 -2.1 -24.6 -22 1 1 0 17 03 00 17 04 40 =1219+044 10 17 16 36.7 139.7 -2.1 -24.4 78 F 1 0 17 04 40 J1224+0330 10 17 16 35.8 139.3 -2.1 -24.5 -22 1 1 0 17 04 40 17 06 20 =1222+037 10 18 56 36.0 139.8 -2.1 -24.3 78 F 1 0 Schedule for EFLSBERG (Code Ef ) Page 4 Snapshot Ionospheric Testing Observations 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) ---------------------------------------------------------------------------------------- --- Thu 2 Jun 2005 Day 153 --- 17 06 20 J1222+0413 10 18 56 36.9 140.1 -2.1 -24.1 -22 1 1 0 17 06 20 17 08 00 =1219+044 10 20 36 37.1 140.6 -2.0 -23.9 78 F 1 0 17 08 00 J1224+0330 10 20 36 36.2 140.3 -2.1 -24.0 -22 1 1 0 17 08 00 17 09 40 =1222+037 10 22 17 36.3 140.7 -2.0 -23.8 78 F 1 0 17 09 40 J1218-0119 10 22 17 32.5 144.8 -1.9 -21.5 -37 1 1 0 17 09 40 17 11 20 =1216-010 10 23 57 32.6 145.2 -1.9 -21.3 63 F 1 0 17 11 20 J1224+0330 10 23 57 36.5 141.2 -2.0 -23.5 -37 1 1 0 17 11 20 17 13 00 =1222+037 10 25 37 36.7 141.7 -2.0 -23.3 63 F 1 0 17 13 00 J1218-0119 10 25 37 32.8 145.7 -1.9 -21.0 -37 1 1 0 17 13 00 17 14 40 =1216-010 10 27 17 32.9 146.1 -1.9 -20.7 63 F 1 0 17 14 40 J1224+0330 10 27 17 36.8 142.2 -2.0 -23.0 -37 1 1 0 17 14 40 17 16 20 =1222+037 10 28 58 37.0 142.6 -1.9 -22.7 63 F 1 0 17 20 40 J1636+2112 10 33 18 15.7 75.5 -6.1 -41.3 33 1 1 0 17 20 40 17 21 40 =1634+213 10 34 19 15.8 75.7 -6.0 -41.4 60 F 1 0 17 21 40 J1644+1813 10 34 19 12.3 76.2 -6.2 H -40.5 -36 1 1 0 17 21 40 17 23 20 =1642+183 10 35 59 12.5 76.5 -6.2 -40.6 0 F 1 0 17 23 20 J1636+2112 10 35 59 16.1 76.0 -6.0 -41.4 -36 1 1 0 17 23 20 17 25 00 =1634+213 10 37 39 16.3 76.3 -6.0 -41.5 64 F 1 0 17 25 00 J1644+1813 10 37 39 12.8 76.8 -6.1 -40.7 -36 1 1 0 17 25 00 17 26 40 =1642+183 10 39 19 13.1 77.1 -6.1 -40.7 64 F 1 0 17 26 40 J1636+2112 10 39 19 16.6 76.6 -6.0 -41.6 -36 1 1 0 17 26 40 17 28 20 =1634+213 10 41 00 16.8 76.9 -5.9 -41.6 64 F 1 0 17 28 20 J1644+1813 10 41 00 13.3 77.4 -6.1 -40.8 -36 1 1 0 17 28 20 17 30 00 =1642+183 10 42 40 13.6 77.7 -6.0 -40.8 64 F 1 0 17 30 00 J1636+2112 10 42 40 17.1 77.2 -5.9 -41.7 -36 1 1 0 17 30 00 17 31 40 =1634+213 10 44 20 17.4 77.5 -5.9 -41.7 64 F 1 0 17 31 40 J1641+2257 10 44 20 17.9 75.4 -6.0 -41.9 -29 1 1 0 17 31 40 17 33 20 =1639+230 10 46 00 18.2 75.7 -5.9 -42.0 71 F 1 0 17 33 20 J1636+2112 10 46 00 17.6 77.8 -5.8 -41.8 -29 1 1 0 17 33 20 17 35 00 =1634+213 10 47 41 17.9 78.1 -5.8 -41.9 71 F 1 0 Schedule for EFLSBERG (Code Ef ) Page 5 Snapshot Ionospheric Testing Observations 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) ---------------------------------------------------------------------------------------- --- Thu 2 Jun 2005 Day 153 --- 17 35 00 J1641+2257 10 47 41 18.4 76.0 -5.9 -42.1 -29 1 1 0 17 35 00 17 36 40 =1639+230 10 49 21 18.7 76.3 -5.9 -42.1 71 F 1 0 17 36 40 J1636+2112 10 49 21 18.1 78.4 -5.8 -41.9 -29 1 1 0 17 36 40 17 38 20 =1634+213 10 51 01 18.4 78.7 -5.8 -42.0 71 F 1 0 17 38 20 J1641+2257 10 51 01 18.9 76.6 -5.8 -42.2 -29 1 1 0 17 38 20 17 40 00 =1639+230 10 52 42 19.2 76.9 -5.8 -42.3 71 F 1 0 17 41 00 J1636+2112 10 53 42 18.8 79.2 -5.7 -42.1 30 1 1 0 17 41 00 17 41 40 =1634+213 10 54 22 18.9 79.3 -5.7 -42.1 40 F 1 0 17 41 40 J1642+2523 10 54 22 21.1 75.2 -5.8 -42.9 -38 1 1 0 17 41 40 17 43 20 =1640+254 10 56 02 21.3 75.5 -5.8 -42.9 62 F 1 0 17 43 20 J1636+2112 10 56 02 19.2 79.6 -5.7 -42.1 -38 1 1 0 17 43 20 17 45 00 =1634+213 10 57 42 19.4 79.9 -5.7 -42.2 62 F 1 0 17 45 00 J1642+2523 10 57 42 21.6 75.8 -5.8 -43.0 -38 1 1 0 17 45 00 17 46 40 =1640+254 10 59 23 21.8 76.1 -5.7 -43.1 62 F 1 0 17 46 40 J1636+2112 10 59 23 19.7 80.3 -5.6 -42.2 -38 1 1 0 17 46 40 17 48 20 =1634+213 11 01 03 20.0 80.6 -5.6 -42.3 62 F 1 0 17 48 20 J1642+2523 11 01 03 22.1 76.4 -5.7 -43.2 -38 1 1 0 17 48 20 17 50 00 =1640+254 11 02 43 22.4 76.7 -5.7 -43.2 62 F 1 0 17 50 00 J1636+2112 11 02 43 20.2 80.9 -5.6 -42.3 -38 1 1 0 17 50 00 17 51 40 =1634+213 11 04 23 20.5 81.2 -5.5 -42.4 62 F 1 0 17 51 40 J1642+2523 11 04 23 22.6 77.0 -5.6 -43.3 -38 1 1 0 17 51 40 17 53 20 =1640+254 11 06 04 22.9 77.3 -5.6 -43.4 62 F 1 0 17 53 20 J1644+1813 11 06 04 17.2 82.1 -5.7 -41.5 -44 1 1 0 17 53 20 17 55 00 =1642+183 11 07 44 17.5 82.4 -5.6 -41.6 56 F 1 0 17 55 00 J1642+2523 11 07 44 23.1 77.6 -5.6 -43.4 -44 1 1 0 17 55 00 17 56 40 =1640+254 11 09 24 23.4 77.9 -5.6 -43.5 56 F 1 0 17 56 40 J1644+1813 11 09 24 17.8 82.7 -5.6 -41.6 -44 1 1 0 17 56 40 17 58 20 =1642+183 11 11 05 18.0 83.0 -5.6 -41.6 56 F 1 0 17 58 20 J1642+2523 11 11 05 23.7 78.2 -5.5 -43.5 -44 1 1 0 17 58 20 18 00 00 =1640+254 11 12 45 23.9 78.5 -5.5 -43.6 56 F 1 0 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: eo999.18cm Matches group ef18cm in /aps3/sched/catalogs/freq.dat Prime focus receiver, standard LO Graham 26/1/00 Setup group: 3 Station: EFLSBERG Total bit rate: 256 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 1st LO= 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 2 1 4 3 6 5 8 7 BBC SB= U U U U U U U U IF = 2N 1N 2N 1N 2N 1N 2N 1N The following frequency sets based on this setup were used. Frequency Set: 3 Setup file default. No pcal detection. LO sum= 1637.99 1637.99 1645.99 1645.99 1653.99 1653.99 1661.99 1661.99 BBC fr= 127.99 127.99 135.99 135.99 143.99 143.99 151.99 151.99 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off SOURCE LIST -- Snapshot Ionospheric Testing Observations 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) * J1159-2148 11 57 18.309811 * 11 59 51.906111 12 00 08.364401 0.27 1157-215 -21 32 11.49992 *-21 48 53.70757 -21 50 49.17241 0.78 J1159-21 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.250 scan hours, 8.429 baseline hours above horizon. * J1159-2228 11 56 37.757633 * 11 59 11.267254 11 59 27.707413 0.35 1156-221 -22 11 54.71372 *-22 28 36.90237 -22 30 32.54328 0.94 J1159-22 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.594 baseline hours above horizon. * J1212-2221 12 09 28.653794 * 12 12 03.697609 12 12 20.379490 0.31 1209-220 -22 05 10.38854 *-22 21 51.51342 -22 23 47.29736 0.86 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.139 scan hours, 3.385 baseline hours above horizon. * J1215-1731 12 13 11.668001 * 12 15 46.751756 12 16 03.492656 0.21 1213-172 -17 15 05.20060 *-17 31 45.40297 -17 33 39.75883 0.31 J1215-17 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.139 scan hours, 5.260 baseline hours above horizon. * J1218-0119 12 16 01.062434 * 12 18 34.929793 12 18 51.681004 0.28 1216-010 -01 03 15.08668 *-01 19 54.34138 -01 21 43.60871 0.52 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.056 scan hours, 1.312 baseline hours above horizon. * J1222+0413 12 19 49.255029 * 12 22 22.549619 12 22 39.310892 0.30 1219+044 04 29 53.60837 * 04 13 15.77616 04 11 28.33343 0.20 J1222+04 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 3.206 baseline hours above horizon. * J1224+0330 12 22 19.097168 * 12 24 52.421934 12 25 09.193350 0.31 1222+037 03 47 27.06610 * 03 30 50.29295 03 29 02.64562 0.24 J1224+03 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.156 scan hours, 6.701 baseline hours above horizon. J1229+0203 12 26 33.245835 * 12 29 06.699731 12 29 23.494262 0.30 1226+023 02 19 43.30564 * 02 03 08.59814 02 01 20.55370 0.20 3C273 /aps3/sched/catalogs/sources.vlba * 3C273B VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro J1229+02 0.222 scan hours, 12.119 baseline hours above horizon. * J1636+2112 16 34 28.653965 * 16 36 38.183456 16 36 53.384673 0.32 1634+213 21 18 56.44171 * 21 12 55.59502 21 12 08.41352 0.49 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.250 scan hours, 9.638 baseline hours above horizon. * J1641+2257 16 39 18.102927 * 16 41 25.227565 16 41 40.195915 0.24 1639+230 23 02 45.20241 * 22 57 04.03274 22 56 18.77175 0.43 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.867 baseline hours above horizon. * J1642+2523 16 40 36.555202 * 16 42 40.411845 16 42 55.070604 0.32 1640+254 25 28 43.57693 * 25 23 07.68189 25 22 22.98514 0.55 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.167 scan hours, 5.537 baseline hours above horizon. * J1644+1813 16 42 39.489851 * 16 44 52.432452 16 45 07.953357 0.84 1642+183 18 18 44.38577 * 18 13 17.23767 18 12 33.20535 1.82 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.139 scan hours, 3.457 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) J1159-2148 115.1 J1159-2228 115.1 J1212-2221 118.0 J1215-1731 117.5 J1218-0119 112.6 J1222+0413 111.1 J1224+0330 112.0 3C273B 113.6 J1636+2112 136.5 J1641+2257 134.8 J1642+2523 132.4 J1644+1813 139.5 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