COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: Snapshot Ionospheric Testing Observations Exp. Code: N05L3 Schedule Version: 1.02 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 Phase referencing is too fast for JODRELL1 All targets are strong Schedule for SHANGHAI (Code Sh ) 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) ---------------------------------------------------------------------------------------- --- Mon 6 Jun 2005 Day 157 --- Next scan frequencies: 1637.99 1637.99 1645.99 1645.99 1653.99 1653.99 1661.99 1661.99 Next BBC frequencies: 562.01 562.01 554.01 554.01 546.01 546.01 538.01 538.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 23 00 00 J1323+7942 00 06 36 21.3 -3.7 10.7 17.7 0 1 1 0 23 00 00 23 02 00 =1323+799 00 08 37 21.3 -3.6 10.7 17.3 120 F 1 0 23 02 00 J1139+7654 00 08 37 18.1 1.7-11.5 -6.4 -13 1 1 0 23 02 00 23 04 00 =1136+771 00 10 37 18.1 1.8-11.5 -6.8 107 F 1 0 23 04 00 J1323+7942 00 10 37 21.3 -3.5 10.8 16.8 -13 1 1 0 23 04 00 23 06 00 =1323+799 00 12 37 21.2 -3.4 10.8 16.4 107 F 1 0 23 06 00 J1139+7654 00 12 37 18.1 1.9-11.5 -7.3 -13 1 1 0 23 06 00 23 08 00 =1136+771 00 14 37 18.1 2.0-11.4 -7.7 107 F 1 0 23 08 00 J1323+7942 00 14 37 21.2 -3.3 10.8 15.9 -13 1 1 0 23 08 00 23 10 00 =1323+799 00 16 38 21.2 -3.2 10.9 15.4 107 F 1 0 23 10 00 J1139+7654 00 16 38 18.1 2.2-11.4 -8.2 -13 1 1 0 23 10 00 23 12 00 =1136+771 00 18 38 18.1 2.3-11.4 -8.6 107 F 1 0 23 13 00 J1323+7942 00 19 38 21.2 -3.0 10.9 14.7 47 1 1 0 23 13 00 23 14 00 =1323+799 00 20 38 21.1 -3.0 10.9 14.5 60 F 1 0 23 14 00 J1406+7828 00 20 38 20.6 -5.5 10.2 24.1 -7 1 1 0 23 14 00 23 15 40 =1406+787 00 22 19 20.6 -5.4 10.3 23.7 93 F 1 0 23 15 40 J1323+7942 00 22 19 21.1 -2.9 11.0 14.1 -7 1 1 0 23 15 40 23 17 20 =1323+799 00 23 59 21.1 -2.8 11.0 13.7 93 F 1 0 23 17 20 J1406+7828 00 23 59 20.6 -5.3 10.3 23.3 -7 1 1 0 23 17 20 23 19 00 =1406+787 00 25 39 20.5 -5.2 10.3 23.0 93 F 1 0 23 19 00 J1323+7942 00 25 39 21.1 -2.8 11.0 13.4 -7 1 1 0 23 19 00 23 20 40 =1323+799 00 27 20 21.1 -2.7 11.1 13.0 93 F 1 0 23 20 40 J1406+7828 00 27 20 20.5 -5.2 10.3 22.6 -7 1 1 0 23 20 40 23 22 20 =1406+787 00 29 00 20.5 -5.1 10.4 22.2 93 F 1 0 Schedule for SHANGHAI (Code Sh ) 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) ---------------------------------------------------------------------------------------- --- Mon 6 Jun 2005 Day 157 --- 23 22 20 J1323+7942 00 29 00 21.1 -2.6 11.1 12.6 -7 1 1 0 23 22 20 23 24 00 =1323+799 00 30 40 21.0 -2.5 11.1 12.2 93 F 1 0 23 24 00 J1357+7643 00 30 40 18.7 -5.2 10.5 19.6 -10 1 1 0 23 24 00 23 25 40 =1357+769 00 32 20 18.6 -5.1 10.6 19.3 90 F 1 0 23 25 40 J1323+7942 00 32 20 21.0 -2.5 11.1 11.8 -10 1 1 0 23 25 40 23 27 20 =1323+799 00 34 01 21.0 -2.4 11.2 11.5 90 F 1 0 23 27 20 J1357+7643 00 34 01 18.6 -5.0 10.6 18.9 -10 1 1 0 23 27 20 23 29 00 =1357+769 00 35 41 18.6 -4.9 10.6 18.5 90 F 1 0 23 29 00 J1323+7942 00 35 41 21.0 -2.3 11.2 11.1 -10 1 1 0 23 29 00 23 30 40 =1323+799 00 37 21 21.0 -2.2 11.2 10.7 90 F 1 0 23 30 40 J1357+7643 00 37 21 18.5 -4.8 10.7 18.1 -10 1 1 0 23 30 40 23 32 20 =1357+769 00 39 01 18.5 -4.7 10.7 17.8 90 F 1 0 23 32 20 J1323+7942 00 39 01 21.0 -2.1 11.3 10.3 -10 1 1 0 23 32 20 23 34 00 =1323+799 00 40 42 21.0 -2.1 11.3 9.9 90 F 1 0 --- Tue 7 Jun 2005 Day 158 --- 00 17 00 J2148+0657 01 23 49 34.3 256.1 3.6 56.9 2062 1 1 0 00 17 00 00 26 00 =2145+067 01 32 50 32.5 257.6 3.7 57.4 540 F 1 0 00 29 00 J2129-1538 01 35 51 14.7 241.1 4.1 51.1 119 1 1 0 00 29 00 00 30 00 =2126-158 01 36 51 14.5 241.3 4.1 51.2 60 F 1 0 00 30 00 J2129-1821 01 36 51 12.8 239.1 4.1 50.7 -8 1 1 0 00 30 00 00 31 40 =2126-185 01 38 31 12.5 239.3 4.1 50.9 92 F 1 0 00 31 40 J2129-1538 01 38 31 14.2 241.5 4.2 51.4 -8 1 1 0 00 31 40 00 33 20 =2126-158 01 40 12 13.9 241.8 4.2 51.6 92 F 1 0 00 33 20 J2129-1821 01 40 12 12.2 239.6 4.2 51.1 -8 1 1 0 00 33 20 00 35 00 =2126-185 01 41 52 11.9 239.8 4.2 51.3 92 F 1 0 00 35 00 J2129-1538 01 41 52 13.5 242.0 4.2 51.8 -8 1 1 0 00 35 00 00 36 40 =2126-158 01 43 32 13.2 242.3 4.2 51.9 92 F 1 0 00 36 40 J2129-1821 01 43 32 11.6 240.1 4.2 51.4 -8 1 1 0 00 36 40 00 38 20 =2126-185 01 45 12 11.3 240.4 4.3 51.6 92 F 1 0 Schedule for SHANGHAI (Code Sh ) 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) ---------------------------------------------------------------------------------------- --- Tue 7 Jun 2005 Day 158 --- 00 38 20 J2129-1538 01 45 12 12.9 242.6 4.3 52.1 -7 1 1 0 00 38 20 00 40 00 =2126-158 01 46 53 12.6 242.8 4.3 52.3 93 F 1 0 00 40 00 J2130-0927 01 46 53 16.5 247.7 4.3 53.4 -15 1 1 0 00 40 00 00 41 40 =2127-096 01 48 33 16.2 248.0 4.3 53.6 85 F 1 0 00 41 40 J2129-1538 01 48 33 12.3 243.1 4.3 52.4 -15 1 1 0 00 41 40 00 43 20 =2126-158 01 50 13 12.0 243.3 4.3 52.6 85 F 1 0 00 43 20 J2130-0927 01 50 13 15.9 248.2 4.3 53.7 -15 1 1 0 00 43 20 00 45 00 =2127-096 01 51 53 15.5 248.5 4.4 53.9 85 F 1 0 00 45 00 J2129-1538 01 51 53 11.6 243.6 4.4 52.8 -15 1 1 0 00 45 00 00 46 40 =2126-158 01 53 34 11.3 243.8 4.4 52.9 85 F 1 0 00 46 40 J2130-0927 01 53 34 15.2 248.7 4.4 54.0 -15 1 1 0 00 46 40 00 48 20 =2127-096 01 55 14 14.9 249.0 4.4 54.1 85 F 1 0 00 49 20 J2129-1538 01 56 14 10.8 244.2 4.4 53.2 44 1 1 0 00 49 20 00 50 00 =2126-158 01 56 54 10.7 244.3 4.5 53.2 40 F 1 0 00 50 00 J2131-1207 01 56 54 13.2 246.8 4.4 53.6 -11 1 1 0 00 50 00 00 51 40 =2128-123 01 58 35 12.9 247.1 4.4 53.8 89 F 1 0 00 51 40 J2129-1538 01 58 35 10.3 244.5 4.5 53.4 -11 1 1 0 00 51 40 00 53 20 =2126-158 02 00 15 10.0 244.8 4.5 53.6 89 F 1 0 00 53 20 J2131-1207 02 00 15 12.6 247.3 4.5 53.9 -11 1 1 0 00 53 20 00 55 00 =2128-123 02 01 55 12.2 247.6 4.5 54.1 89 F 1 0 00 55 00 J2129-1538 02 01 55 9.7 245.0 4.5 53.7 -10 1 1 0 00 55 00 00 56 40 =2126-158 02 03 35 9.4 245.3 4.6 53.9 90 F 1 0 00 56 40 J2131-1207 02 03 35 11.9 247.8 4.5 54.2 -10 1 1 0 00 56 40 00 58 20 =2128-123 02 05 16 11.6 248.1 4.6 54.3 90 F 1 0 00 58 20 J2129-1538 02 05 16 9.0 245.5 4.6 54.0 -10 1 1 0 00 58 20 01 00 00 =2126-158 02 06 56 8.7 245.8 4.6 54.2 90 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 sh18cm in /aps3/sched/catalogs/freq.dat Huang Xinyong 170300, dual pol but narrow(?) Setup group: 8 Station: SHANGHAI 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= 2200.00 2200.00 2200.00 2200.00 2200.00 2200.00 2200.00 2200.00 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= L L L L L L L L IF = C A C A C A C A The following frequency sets based on this setup were used. Frequency Set: 8 Setup file default. Used pcal sets: 1 LO sum= 1637.99 1637.99 1645.99 1645.99 1653.99 1653.99 1661.99 1661.99 BBC fr= 562.01 562.01 554.01 554.01 546.01 546.01 538.01 538.01 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= 10 10 10 10 6010 6010 6010 6010 PCALFR2= 10 10 10 10 6010 6010 6010 6010 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) * J1139+7654 11 36 50.402483 * 11 39 51.538717 11 40 13.600280 1.47 1136+771 77 11 09.68453 * 76 54 32.34642 76 53 06.06924 0.65 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.100 scan hours, 1.894 baseline hours above horizon. * J1323+7942 13 23 30.967861 * 13 23 51.569831 13 24 00.836917 2.82 1323+799 79 58 27.57995 * 79 42 51.84705 79 41 25.76771 0.44 J1323+79 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.283 scan hours, 8.751 baseline hours above horizon. * J1357+7643 13 57 42.117003 * 13 57 55.371534 13 58 02.806741 0.87 1357+769 76 57 53.35424 * 76 43 21.05104 76 41 58.55255 0.40 J1357+76 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.185 baseline hours above horizon. * J1406+7828 14 06 56.652670 * 14 06 36.566944 14 06 41.585608 3.71 1406+787 78 42 22.78156 * 78 28 10.40623 78 26 49.33489 0.63 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.161 baseline hours above horizon. * J1719+1745 17 17 00.324732 * 17 19 13.048481 17 19 28.559864 0.32 1717+178 17 48 08.51599 * 17 45 06.43721 17 44 37.64380 0.22 J1719+17 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 1.739 baseline hours above horizon. * J1745+1720 17 43 22.235899 * 17 45 35.208167 17 45 50.704699 0.32 1743+173 17 21 09.18647 * 17 20 01.42378 17 19 43.97628 0.22 J1745+17 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.300 scan hours, 8.450 baseline hours above horizon. * J1752+1734 17 50 33.364387 * 17 52 46.002901 17 53 01.452521 0.39 1750+175 17 34 56.75224 * 17 34 20.35018 17 34 06.02002 0.56 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.350 baseline hours above horizon. * J1756+1535 17 54 37.953509 * 17 56 53.102132 17 57 08.795390 0.32 15 35 39.32316 * 15 35 20.82657 15 35 08.41956 0.24 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.232 baseline hours above horizon. * J2129-1538 21 26 26.777538 * 21 29 12.175905 21 29 30.394943 0.21 2126-158 -15 51 50.34727 *-15 38 41.04110 -15 37 18.72623 0.30 J2129-15 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.250 scan hours, 9.451 baseline hours above horizon. * J2129-1821 21 26 33.897232 * 21 29 21.419113 21 29 39.890466 0.27 2126-185 -18 34 32.47350 *-18 21 22.79035 -18 19 59.57129 0.49 J2129-18 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.231 baseline hours above horizon. * J2130-0927 21 27 38.408364 * 21 30 19.088248 21 30 36.744372 0.23 2127-096 -09 40 49.81991 *-09 27 37.43511 -09 26 16.73888 0.37 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.505 baseline hours above horizon. * J2131-1207 21 28 52.676063 * 21 31 35.261755 21 31 53.136782 0.21 2128-123 -12 20 20.53564 *-12 07 04.79603 -12 05 42.84703 0.30 J2131-12 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.083 scan hours, 2.844 baseline hours above horizon. * J2148+0657 21 45 36.078475 * 21 48 05.458673 21 48 21.701858 0.30 2145+067 06 43 40.90460 * 06 57 38.60420 06 58 59.23842 0.20 J2148+06 /aps3/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.150 scan hours, 7.749 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) J1139+7654 70.1 J1323+7942 73.5 J1357+7643 76.8 J1406+7828 75.8 J1719+1745 139.3 J1745+1720 138.4 J1752+1734 137.7 J1756+1535 139.3 J2129-1538 116.6 J2129-1821 117.4 J2130-0927 114.3 J2131-1207 115.0 J2148+0657 103.7 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg