COVER INFORMATION Station: MC_DBBC (Code Md ) Experiment: Ftp test Exp. Code: F14L1 Schedule Version: 2.00 Processed by SCHED version: 10.20 Release of about July 12, 2012 PI: Dmitry Duev Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596521 EMAIL: duev@jive.nl Fax: Phone during observation: +31-521-596521 Observing mode: Notes: L-band ftp-test (512 Mbps, 2-bit sampling, 8 MHz filters) for session 1/2014 COVER LETTER: This is the schedule for the L-band ftp fringe-test on 20 February 2014 involving 16 antennas: Eb Wb Jb1 On25 Mc Nt Tr Sv Zc Bd Ur Sh T6 Hh Sr (Md Td) The ftp test uses a standard setup and consists of long integrations on a strong source 0234+285. Two ftp tests are scheduled: 12:04:30 UT (scan 2, 2 sec, 0234+285) 12:53:00 UT (scan 8, 2 sec, 0234+285) Please make sure that the autoftp is set up correctly. Good luck with the session and see you on Skype! Dmitry Skype account: oasis230987 Schedule for MC_DBBC (Code Md ) Page 2 Ftp test UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 20 Feb 2014 Day 51 --- Next scan frequencies: 1634.49 1634.49 1634.49 1634.49 1650.49 1650.49 1650.49 1650.49 1666.49 1666.49 1666.49 1666.49 1682.49 1682.49 1682.49 1682.49 Next BBC frequencies: 339.49 339.49 339.49 339.49 355.49 355.49 355.49 355.49 371.49 371.49 371.49 371.49 387.49 387.49 387.49 387.49 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 12 00 00 0234+285 22 47 58 42.2 448.8 -3.8 -54.5 0 0 12 00 00 12 04 00 --- 22 51 58 43.0 449.5 -3.8 -54.5 240 15 12 00 01 12 04 30 0234+285 22 52 28 43.0 449.5 -3.8 -54.5 27 15 12 04 30 12 08 30 --- 22 56 29 43.8 450.2 -3.7 -54.5 240 31 12 04 31 12 10 30 0234+285 22 58 29 44.1 450.6 -3.7 -54.5 117 31 12 10 30 12 18 30 --- 23 06 31 45.5 452.0 -3.5 -54.5 480 62 12 10 31 12 19 00 0234+285 23 07 01 45.6 452.1 -3.5 -54.4 27 62 12 19 00 12 27 00 --- 23 15 02 47.1 453.6 -3.4 -54.3 480 93 12 19 01 12 27 30 0234+285 23 15 32 47.2 453.7 -3.4 -54.3 27 93 12 27 30 12 35 30 --- 23 23 34 48.6 455.2 -3.3 -54.2 480 124 12 27 31 12 36 00 0234+285 23 24 04 48.7 455.3 -3.2 -54.2 27 124 12 36 00 12 44 00 --- 23 32 05 50.1 456.9 -3.1 -53.9 480 155 12 36 01 12 44 30 0234+285 23 32 35 50.2 457.0 -3.1 -53.9 27 155 12 44 30 12 52 30 --- 23 40 36 51.6 458.7 -3.0 -53.6 480 186 12 44 31 12 53 00 0234+285 23 41 06 51.7 458.8 -3.0 -53.6 27 186 12 53 00 12 57 00 --- 23 45 07 52.4 459.6 -2.9 -53.4 240 201 12 53 01 12 59 00 0234+285 23 47 07 52.7 460.1 -2.9 -53.3 117 201 12 59 00 13 00 00 --- 23 48 08 52.9 460.3 -2.8 -53.2 60 205 12 59 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess114.L512 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 16 Station: MC_DBBC Total bit rate: 512 Format: MARK5B Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 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 5 1 5 2 6 2 6 3 7 3 7 4 8 4 8 BBC SB= L L U U L L U U L L U U L L U U IF = A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 17 Setup file default. LO sum= 1634.49 1634.49 1634.49 1634.49 1650.49 1650.49 1650.49 1650.49 1666.49 1666.49 1666.49 1666.49 1682.49 1682.49 1682.49 1682.49 BBC fr= 339.49 339.49 339.49 339.49 355.49 355.49 355.49 355.49 371.49 371.49 371.49 371.49 387.49 387.49 387.49 387.49 Bandwd= 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 Matching frequency sets: 17 Track assignments are: track1= 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 barrel=roll_off SOURCES USED IN RECORDING SCANS -- Ftp test 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) J0237+2848 02 34 55.589591 * 02 37 52.405678 02 38 42.952292 0.11 * 0234+285 28 35 11.40773 * 28 48 08.98998 28 51 48.25714 0.10 J0237+28 /aps3/sched10.2/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 56811 observations 0.883 scan and 135.150 baseline hours in setup: sess114.L512 Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 11 12 14 15 16 17 18 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) 0234+285 74.9 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