COVER INFORMATION Station: EB_VLBA (Code Eb ) Experiment: NME and FTP Fringe Test at S/X band in Session3/2010 Exp. Code: N10SX2 Schedule Version: 1.00 Processed by SCHED version: 9.30 Release near March 23, 2010 PI: Jun Yang Address: JIVE Postbus 2 7990AA Dwingeloo The Netherlands Phone: +31-521-596507 EMAIL: yang@jive.nl Fax: Phone during observation: Observing mode: 3.6/13 cm, 512-16-8 Notes: Only RCP, 512 Mbps, 2-bit sampling, 8 BBCs (USB & LSB). Check autoftp settings and pointing. On and Mc may need to patch BBCs to IF distributors manually. COVER LETTER: Three ftp scans are scheduled in N10SX2. ~12h09m UT, 2 second, 128 MB data, source J1751+0939 ~13h06m UT, 2 second, 128 MB data, source J1751+0939 ~14h58m UT, 2 second, 128 MB data, source J1751+0939 The source J1751+0939/1749+096 is a compact ICRF source with total flux density: ~1.5 Jy at 2.3 GHz ~2.9 Jy at 8.4 GHz Good Luck! Jun Yang skype account: uaoagn Schedule for EB_VLBA (Code Eb ) Page 2 NME and FTP Fringe Test at S/X band in Session3/2010 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 ---------------------------------------------------------------------------------------- --- Mon 8 Nov 2010 Day 312 --- ---------- 1st ftp scan ---------- Next scan frequencies: 2234.99 2234.99 2250.99 2250.99 2266.99 2266.99 2282.99 2282.99 8384.99 8384.99 8400.99 8400.99 8416.99 8416.99 8432.99 8432.99 Next BBC frequencies: 534.99 534.99 550.99 550.99 566.99 566.99 582.99 582.99 584.99 584.99 600.99 600.99 616.99 616.99 632.99 632.99 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 12 00 00 J1751+0939 15 37 48 40.7 134.1 -2.2 -27.6 0 1 1 0 12 00 00 12 10 00 =1749+096 15 47 50 41.8 137.0 -2.1 -26.1 600 F 1 39 12 00 01 12 14 30 J1751+0939 15 52 20 42.3 138.3 -2.0 -25.4 245 1 1 39 12 14 30 12 24 30 =1749+096 16 02 22 43.3 141.4 -1.8 -23.7 600 F 1 77 12 14 31 12 25 00 J1751+0939 16 02 52 43.3 141.6 -1.8 -23.6 15 1 1 77 12 25 00 12 35 00 =1749+096 16 12 54 44.3 144.7 -1.7 -21.9 600 F 1 116 12 25 01 12 35 30 J1751+0939 16 13 24 44.3 144.9 -1.6 -21.8 15 1 1 116 12 35 30 12 45 30 =1749+096 16 23 26 45.2 148.1 -1.5 -19.9 600 F 1 155 12 35 31 12 46 00 J1751+0939 16 23 56 45.3 148.3 -1.5 -19.8 15 1 1 155 12 46 00 12 56 00 =1749+096 16 33 57 46.1 151.6 -1.3 -17.8 600 F 1 194 12 46 01 ---------- 2nd ftp scan ---------- 12 57 00 J1751+0939 16 34 57 46.1 152.0 -1.3 -17.6 43 1 1 194 12 57 00 13 07 00 =1749+096 16 44 59 46.8 155.4 -1.1 -15.6 600 F 1 232 12 57 01 13 10 40 J1859-0121 16 48 40 31.0 140.7 -2.2 -23.8 135 1 1 232 13 10 40 13 15 00 =1857-014 16 53 00 31.5 141.8 -2.1 -23.1 260 F 1 249 13 10 41 13 16 00 J1827-0405 16 54 01 31.7 152.0 -1.6 -17.4 6 1 1 249 13 16 00 13 20 00 =1825-041 16 58 01 32.0 153.1 -1.5 -16.7 240 F 1 264 13 16 01 13 21 00 J1825-0737 16 59 01 28.9 155.1 -1.5 -15.6 26 1 1 264 13 21 00 13 25 00 =1822-076 17 03 02 29.1 156.2 -1.4 -15.0 240 F 1 280 13 21 01 13 26 00 J1835-1115 17 04 02 25.0 155.0 -1.5 -15.9 22 1 1 280 13 26 00 13 30 00 =1832-113 17 08 03 25.3 156.1 -1.5 -15.3 240 F 1 295 13 26 01 Schedule for EB_VLBA (Code Eb ) Page 3 NME and FTP Fringe Test at S/X band in Session3/2010 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 ---------------------------------------------------------------------------------------- --- Mon 8 Nov 2010 Day 312 --- 13 31 00 J1846-0651 17 09 03 28.9 152.1 -1.6 -17.5 23 1 1 295 13 31 00 13 35 00 =1843-069 17 13 04 29.2 153.1 -1.6 -16.8 240 F 1 311 13 31 01 13 36 00 J1834-0301 17 14 04 33.7 155.5 -1.3 -15.3 20 1 1 311 13 36 00 13 40 20 =1831-030 17 18 25 34.0 156.8 -1.3 -14.5 260 F 1 328 13 36 01 13 44 50 J1751+0939 17 22 55 48.7 169.1 -0.5 -7.0 190 1 1 328 13 44 50 13 54 50 =1749+096 17 32 57 48.9 172.8 -0.3 -4.6 600 F 1 366 13 44 51 13 55 20 J1751+0939 17 33 27 48.9 173.0 -0.3 -4.5 15 1 1 366 13 55 20 14 05 20 =1749+096 17 43 29 49.1 176.8 -0.1 -2.1 600 F 1 405 13 55 21 14 05 50 J1751+0939 17 43 59 49.1 177.0 -0.1 -2.0 15 1 1 405 14 05 50 14 15 50 =1749+096 17 54 00 49.1 180.7 0.0 0.5 600 F 1 444 14 05 51 14 16 20 J1751+0939 17 54 30 49.1 180.9 0.0 0.6 15 1 1 444 14 16 20 14 26 20 =1749+096 18 04 32 49.0 184.7 0.2 3.0 600 F 1 483 14 16 21 14 26 50 J1751+0939 18 05 02 49.0 184.9 0.2 3.1 15 1 1 483 14 26 50 14 36 50 =1749+096 18 15 04 48.8 188.6 0.4 5.6 600 F 1 521 14 26 51 14 37 20 J1751+0939 18 15 34 48.8 188.8 0.4 5.7 15 1 1 521 14 37 20 14 47 20 =1749+096 18 25 36 48.5 192.5 0.6 8.0 600 F 1 560 14 37 21 ---------- Last ftp scan ---------- 14 48 20 J1751+0939 18 26 36 48.5 192.9 0.6 8.3 42 1 1 560 14 48 20 14 58 20 =1749+096 18 36 37 48.1 196.6 0.7 10.6 600 F 1 599 14 48 21 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: n10sx2.set Matching groups in ./gc034a_freq.dat: eb_sx SX using 4cm secondary focus: not easy to get below 8300. Setup group: 1 Station: EB_VLBA Total bit rate: 512 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 Speedup factor: 1.00 Disk used to record data. 1st LO= 1700.00 1700.00 1700.00 1700.00 1700.00 1700.00 1700.00 1700.00 7800.00 7800.00 7800.00 7800.00 7800.00 7800.00 7800.00 7800.00 Net SB= L U L U L U L U L U L U L U L U Pol. = RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP RCP BBC = 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 BBC SB= L U L U L U L U L U L U L U L U IF = B B B B B B B B A A A A A A A A The following frequency sets based on this setup were used. Frequency Set: 6 Setup file default. Used pcal sets: 1 LO sum= 2234.99 2234.99 2250.99 2250.99 2266.99 2266.99 2282.99 2282.99 8384.99 8384.99 8400.99 8400.99 8416.99 8416.99 8432.99 8432.99 BBC fr= 534.99 534.99 550.99 550.99 566.99 566.99 582.99 582.99 584.99 584.99 600.99 600.99 616.99 616.99 632.99 632.99 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= 990 990 990 990 990 990 990 990 PCALFR2= 10 10 10 10 10 10 10 10 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 -- NME and FTP Fringe Test at S/X band in Session3/2010 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) * J1751+0939 17 49 10.387929 * 17 51 32.818572 17 52 03.564760 0.00 1749+096 09 39 42.82590 * 09 39 00.72845 09 38 59.59127 0.01 J1751+09 /aps3/sched9.3/catalogs/sources.vlba GSFC Nov. 2009 Solution 2009a 114880 Observations 2.167 scan hours, 32.500 baseline hours above horizon. * J1825-0737 18 22 54.910260 * 18 25 37.609552 18 26 13.015420 1.05 1822-076 -07 39 15.96681 *-07 37 30.01289 -07 37 01.89401 1.51 /aps3/sched9.3/catalogs/sources.vlba Petrov Dec. 2009 Solution 2009c_astro 45 Observations 0.067 scan hours, 1.000 baseline hours above horizon. * J1827-0405 18 25 06.481702 * 18 27 45.040500 18 28 19.536705 3.30 1825-041 -04 07 39.91451 *-04 05 44.57823 -04 05 13.48375 3.07 /aps3/sched9.3/catalogs/sources.vlba Petrov Dec. 2009 Solution 2009c_astro 22 Observations 0.067 scan hours, 1.000 baseline hours above horizon. * J1834-0301 18 31 36.772619 * 18 34 14.074561 18 34 48.318202 1.09 1831-030 -03 03 43.12381 *-03 01 19.62762 -03 00 41.99831 1.27 /aps3/sched9.3/catalogs/sources.vlba Petrov Dec. 2009 Solution 2009c_astro 30 Observations 0.072 scan hours, 1.083 baseline hours above horizon. * J1835-1115 18 32 32.599314 * 18 35 19.575857 18 35 55.967009 2.67 1832-113 -11 18 27.17609 *-11 15 59.30885 -11 15 22.87925 5.96 /aps3/sched9.3/catalogs/sources.vlba Petrov Dec. 2009 Solution 2009c_astro 18 Observations 0.067 scan hours, 1.000 baseline hours above horizon. * J1846-0651 18 43 24.598708 * 18 46 06.300268 18 46 41.571797 4.13 1843-069 -06 54 42.24049 *-06 51 27.74598 -06 50 39.81263 3.13 /aps3/sched9.3/catalogs/sources.vlba Petrov Dec. 2009 Solution 2009c_astro 13 Observations 0.067 scan hours, 1.000 baseline hours above horizon. * J1859-0121 18 57 05.007188 * 18 59 40.373616 19 00 14.298588 17.80 1857-014 -01 26 00.90070 *-01 21 48.35698 -01 20 46.00379 11.85 /aps3/sched9.3/catalogs/sources.vlba Petrov Dec. 2009 Solution 2009c_astro 23 Observations 0.072 scan hours, 1.083 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) J1751+0939 51.2 J1825-0737 52.4 J1827-0405 53.9 J1834-0301 55.8 J1835-1115 53.9 J1846-0651 57.5 J1859-0121 62.4 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