COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: TwoDimensional time Delay Measurement of 1819+3845. Exp. Code: ec026 Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Giuseppe Cimo Address: Joint Institute for VLBI in Europe Postbus 2 7990 AA Dwingeloo - The Netherlands Phone: +31-(0)521 596545 EMAIL: cimo@jive.nl Fax: +31-(0)521 596539 Phone during observation: Observing mode: 256-8-2 3.6 and 6cm Notes: Schedule for SHANGHAI (Code Sh ) Page 2 TwoDimensional time Delay Measurement of 1819+3845. 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 ---------------------------------------------------------------------------------------- --- Wed 12 Mar 2008 Day 72 --- Next scan frequencies: 4958.49 4958.49 4958.49 4958.49 4974.49 4974.49 4974.49 4974.49 4990.49 4990.49 4990.49 4990.49 5006.49 5006.49 5006.49 5006.49 Next BBC frequencies: 758.49 758.49 758.49 758.49 774.49 774.49 774.49 774.49 790.49 790.49 790.49 790.49 806.49 806.49 806.49 806.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 00 00 00 J1800+3848 19 24 50 71.2 -60.1 1.4 107.7 0 1 1 0 00 00 00 00 06 00 =1758+388 19 30 51 70.1 -61.1 1.5 105.8 360 F 1 23 00 00 01 00 06 00 J1819+3845 19 30 51 73.6 -57.4 1.2 112.3 -8 1 1 23 00 06 00 00 21 00 --- 19 45 54 70.8 -60.6 1.4 106.9 892 F 1 81 00 06 01 00 21 00 J1821+3945 19 45 54 71.0 -57.2 1.4 110.6 -5 1 1 81 00 21 00 00 26 00 =1820+397 19 50 55 70.0 -58.2 1.5 108.8 295 F 1 101 00 21 01 00 26 00 J1819+3845 19 50 55 69.9 -61.4 1.5 105.4 -5 1 1 101 00 26 00 00 41 00 --- 20 05 57 67.0 -63.3 1.8 101.3 895 F 1 159 00 26 01 00 42 00 J1821+3945 20 06 57 67.1 -60.6 1.7 104.0 55 1 1 159 00 42 00 00 47 00 =1820+397 20 11 58 66.1 -61.1 1.8 102.7 300 F 1 178 00 42 01 00 47 00 J1819+3845 20 11 58 65.9 -63.8 1.9 99.9 -5 1 1 178 00 47 00 01 02 00 --- 20 27 01 63.0 -64.8 2.1 96.6 895 F 1 236 00 47 01 01 02 00 J1821+3945 20 27 01 63.3 -62.4 2.1 99.2 -4 1 1 236 01 02 00 01 07 00 =1820+397 20 32 01 62.4 -62.7 2.2 98.1 296 F 1 255 01 02 01 01 07 00 J1819+3845 20 32 01 62.0 -65.0 2.2 95.7 -4 1 1 255 01 07 00 01 22 00 --- 20 47 04 59.1 -65.5 2.5 92.9 896 F 1 314 01 07 01 01 23 00 J1821+3945 20 48 04 59.3 -63.4 2.4 94.9 56 1 1 314 01 23 00 01 28 00 =1820+397 20 53 05 58.3 -63.6 2.5 94.0 300 F 1 333 01 23 01 01 28 00 J1819+3845 20 53 05 57.9 -65.6 2.6 91.9 -4 1 1 333 01 28 00 01 43 00 --- 21 08 07 55.0 -65.6 2.8 89.5 896 F 1 391 01 28 01 01 43 00 J1821+3945 21 08 07 55.4 -63.8 2.8 91.4 -4 1 1 391 01 43 00 01 48 00 =1820+397 21 13 08 54.5 -63.9 2.8 90.5 296 F 1 410 01 43 01 Schedule for SHANGHAI (Code Sh ) Page 3 TwoDimensional time Delay Measurement of 1819+3845. 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 ---------------------------------------------------------------------------------------- --- Wed 12 Mar 2008 Day 72 --- 01 48 00 J1819+3845 21 13 08 54.0 -65.6 2.9 88.7 -4 1 1 410 01 48 00 02 03 00 --- 21 28 11 51.1 -65.4 3.1 86.5 896 F 1 468 01 48 01 02 04 00 J1821+3945 21 29 11 51.4 -63.8 3.1 88.0 56 1 1 468 02 04 00 02 09 00 =1820+397 21 34 12 50.4 -63.7 3.2 87.3 300 F 1 488 02 04 01 02 09 00 J1819+3845 21 34 12 49.9 -65.3 3.2 85.7 -4 1 1 488 02 09 00 02 24 00 --- 21 49 14 47.0 -64.9 3.5 83.6 896 F 1 546 02 09 01 02 24 00 J1821+3945 21 49 14 47.6 -63.4 3.4 85.1 -3 1 1 546 02 24 00 02 29 00 =1820+397 21 54 15 46.6 -63.3 3.5 84.4 297 F 1 565 02 24 01 02 29 00 J1819+3845 21 54 15 46.0 -64.7 3.6 83.0 -3 1 1 565 02 29 00 02 44 00 --- 22 09 17 43.1 -64.1 3.8 81.0 897 F 1 623 02 29 01 02 45 00 J1821+3945 22 10 18 43.5 -62.8 3.8 82.2 57 1 1 623 02 45 00 02 50 00 =1820+397 22 15 18 42.6 -62.6 3.9 81.5 300 F 1 643 02 45 01 02 50 00 J1819+3845 22 15 18 41.9 -63.9 3.9 80.2 -3 1 1 643 02 50 00 03 05 00 --- 22 30 21 39.1 -63.1 4.2 78.4 897 F 1 701 02 50 01 03 05 00 J1821+3945 22 30 21 39.7 -62.0 4.1 79.5 -3 1 1 701 03 05 00 03 10 00 =1820+397 22 35 22 38.8 -61.7 4.2 78.9 297 F 1 720 03 05 01 03 10 00 J1819+3845 22 35 22 38.1 -62.9 4.3 77.7 -3 1 1 720 03 10 00 03 25 00 --- 22 50 24 35.2 -62.0 4.5 75.9 897 F 1 778 03 10 01 03 26 00 J1821+3945 22 51 24 35.8 -60.9 4.5 76.8 57 1 1 778 03 26 00 03 31 00 =1820+397 22 56 25 34.8 -60.6 4.6 76.1 300 F 1 797 03 26 01 03 31 00 J1819+3845 22 56 25 34.1 -61.7 4.6 75.1 -3 1 1 797 03 31 00 03 46 00 --- 23 11 28 31.3 -60.7 4.9 73.3 897 F 1 855 03 31 01 03 46 00 J1821+3945 23 11 28 32.0 -59.8 4.8 74.2 -3 1 1 855 03 46 00 03 51 00 =1820+397 23 16 28 31.1 -59.4 4.9 73.6 297 F 1 875 03 46 01 03 51 00 J1819+3845 23 16 28 30.3 -60.4 4.9 72.7 -3 1 1 875 03 51 00 04 06 00 --- 23 31 31 27.6 -59.4 5.2 70.8 897 F 1 933 03 51 01 04 07 00 J1821+3945 23 32 31 28.2 -58.4 5.2 71.5 57 1 1 933 04 07 00 04 12 00 =1820+397 23 37 32 27.3 -58.0 5.3 70.9 300 F 1 952 04 07 01 04 12 00 J1800+3848 23 37 32 23.0 -57.4 5.6 67.8 -9 1 1 952 04 12 00 04 17 00 =1758+388 23 42 33 22.1 -57.0 5.7 67.1 291 F 1 972 04 12 01 Schedule for SHANGHAI (Code Sh ) Page 4 TwoDimensional time Delay Measurement of 1819+3845. 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 ---------------------------------------------------------------------------------------- --- Wed 12 Mar 2008 Day 72 --- 04 17 00 J1819+3845 23 42 33 25.5 -58.5 5.4 69.5 -8 1 1 972 04 17 00 04 32 00 --- 23 57 35 22.8 -57.4 5.6 67.6 892 F 1 1030 04 17 01 04 32 00 J1821+3945 23 57 35 23.6 -56.5 5.6 68.3 -3 1 1 1030 04 32 00 04 37 00 =1820+397 00 02 36 22.8 -56.1 5.7 67.7 297 F 1 1049 04 32 01 04 37 00 J1819+3845 00 02 36 21.9 -57.0 5.7 67.0 -3 1 1 1049 04 37 00 04 52 00 --- 00 17 38 19.2 -55.7 6.0 65.1 897 F 1 1107 04 37 01 04 53 00 J1821+3945 00 18 39 19.9 -54.8 5.9 65.6 57 1 1 1107 04 53 00 04 58 00 =1820+397 00 23 39 19.0 -54.4 6.0 64.9 300 F 1 1126 04 53 01 04 58 00 J1819+3845 00 23 39 18.2 -55.2 6.1 64.3 -3 1 1 1126 04 58 00 05 13 00 --- 00 38 42 15.5 -53.8 6.3 62.3 897 F 1 1184 04 58 01 05 13 00 J1821+3945 00 38 42 16.5 -53.1 6.3 62.9 -4 1 1 1184 05 13 00 05 18 00 =1820+397 00 43 43 15.6 -52.6 6.4 62.3 296 F 1 1204 05 13 01 05 18 00 J1819+3845 00 43 43 14.7 -53.3 6.4 61.7 -4 1 1 1204 05 18 00 05 33 00 --- 00 58 45 12.1 -51.8 6.7 59.7 896 F 1 1262 05 18 01 05 34 00 J1821+3945 00 59 45 12.9 -51.1 6.6 60.1 57 1 1 1262 05 34 00 05 39 00 =1820+397 01 04 46 12.1 -50.6 6.7 59.4 300 F 1 1281 05 34 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /aps3/sched/setups/v6cm-512-16-2.set Matches group sh6cm in /aps3/sched/catalogs/freq.dat Dual-pol available since summer 2005 (CR 051122). Setup group: 10 Station: SHANGHAI Total bit rate: 512 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 Speedup factor: 1.00 Disk used to record data. 1st LO= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 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 = 1 2 1 2 3 4 3 4 5 6 5 6 7 8 7 8 BBC SB= L L U U L L U U L L U U L L U U IF = C A C A C A C A C A C A C A C A The following frequency sets based on this setup were used. Frequency Set: 9 Setup file default. Used pcal sets: 1 LO sum= 4958.49 4958.49 4958.49 4958.49 4974.49 4974.49 4974.49 4974.49 4990.49 4990.49 4990.49 4990.49 5006.49 5006.49 5006.49 5006.49 BBC fr= 758.49 758.49 758.49 758.49 774.49 774.49 774.49 774.49 790.49 790.49 790.49 790.49 806.49 806.49 806.49 806.49 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 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 S9 S11 S13 S15 PCALXB2= S2 S4 S6 S8 S10 S12 S14 S16 PCALFR1= 490 510 490 510 490 510 490 510 PCALFR2= 490 510 490 510 490 510 490 510 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 -- TwoDimensional time Delay Measurement of 1819+3845. 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) * J1800+3848 17 58 44.703953 * 18 00 24.765362 18 00 41.249544 0.26 1758+388 38 48 32.47356 * 38 48 30.69754 38 48 04.91671 0.40 J1800+38 /aps3/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.350 scan hours, 11.869 baseline hours above horizon. * J1819+3845 18 17 46.175701 * 18 19 26.547379 18 19 42.914889 0.31 38 43 40.47037 * 38 45 01.78615 38 44 50.18995 0.51 /aps3/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 8.500 scan hours, 309.520 baseline hours above horizon. * J1821+3945 18 20 21.240613 * 18 21 59.700620 18 22 15.717219 2.05 1820+397 39 44 27.15459 * 39 45 59.65691 39 45 49.80479 2.21 J1821+39 /aps3/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 2.917 scan hours, 104.690 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) J1800+3848 86.2 J1819+3845 82.5 J1821+3945 82.2 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