COVER INFORMATION Station: JODRELL2 (Code Jb ) Experiment: NME + FTP FT Exp. Code: N14K2 Schedule Version: 1.00 Processed by SCHED version: 11.30 Version 11.3 update 1. April 14, 2014 PI: Ivan Agudo Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596-549 EMAIL: agudo@jive.nl Fax: Phone during observation: +31-521-596-549 Observing mode: Notes: 1.3cm NME + FTP FT for session 2/2014 1024 Mbps, 2-bit sampling, 16 MHz filters Participation from Sr (with DBBC) is expected Additional DBBC testing with Ys is also scheduled COVER LETTER: Dear EVN friends, This is the schedule for the 1.3cm NME+FTP-FT on June 17 2014, involving 16 stations: Eb Jb2 On20 Nt Tr Sv Zc Bd Sh Ys Sr Mh Kt Ku Ky Yd. The session uses a setup with 1024 Mbps and consists of three ftp fringe tests, interspersed with a longer set of scans on 0836+710 (~2 Jy source at 2cm, although not pointlike). The three ftp fringe-test scans, start at: (1) 12:07:28 UT (scan 2, 2 sec) (2) 13:29:58 UT (scan 12, 2 sec) (3) 14:53:58 UT (scan 23, 2 sec) See you on Skype group chat and Good luck with the session! Ivan Support Scientist, JIVE Skype account: JIVE.Support.Scientist Schedule for JODRELL2 (Code Jb ) Page 2 NME + FTP FT 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 ---------------------------------------------------------------------------------------- --- Tue 17 Jun 2014 Day 168 --- Next scan frequencies: 22187.49 22187.49 22187.49 22187.49 22219.49 22219.49 22219.49 22219.49 22251.49 22251.49 22251.49 22251.49 22283.49 22283.49 22283.49 22283.49 Next BBC frequencies: 107.49 107.49 107.49 107.49 139.49 139.49 139.49 139.49 171.49 171.49 171.49 171.49 203.49 203.49 203.49 203.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 12 00 00 0836+710 05 33 27 62.9 31.9 -3.2 -105.3 0 0 12 00 00 12 04 00 --- 05 37 27 63.2 31.7 -3.1 -106.4 240 31 12 00 04 ---------- FTP scan ---------- 12 04 30 0836+710 05 37 57 63.2 31.7 -3.1 -106.5 27 31 12 04 30 12 08 30 --- 05 41 58 63.5 31.5 -3.0 -107.7 240 61 12 04 34 ---------- ~2 min gap, perhaps useful for pointing! ---------- 12 10 30 0836+710 05 43 58 63.7 31.4 -3.0 -108.3 117 61 12 10 30 12 18 30 --- 05 52 00 64.3 30.9 -2.8 -110.6 480 123 12 10 34 12 19 00 0836+710 05 52 30 64.3 30.8 -2.8 -110.8 27 123 12 19 00 12 27 00 --- 06 00 31 64.9 30.3 -2.7 -113.2 480 184 12 19 04 12 27 30 0836+710 06 01 01 65.0 30.2 -2.7 -113.3 27 184 12 27 30 12 35 30 --- 06 09 02 65.6 29.6 -2.6 -115.8 480 246 12 27 34 12 36 00 0836+710 06 09 32 65.6 29.5 -2.6 -116.0 27 246 12 36 00 12 44 00 --- 06 17 34 66.2 28.8 -2.4 -118.5 480 307 12 36 04 12 44 30 0836+710 06 18 04 66.2 28.7 -2.4 -118.7 27 307 12 44 30 12 52 30 --- 06 26 05 66.8 27.9 -2.3 -121.4 480 369 12 44 34 12 53 00 0836+710 06 26 35 66.8 27.9 -2.3 -121.5 27 369 12 53 00 13 01 00 --- 06 34 37 67.4 26.9 -2.1 -124.3 480 430 12 53 04 13 01 30 0836+710 06 35 07 67.4 26.9 -2.1 -124.4 27 430 13 01 30 13 09 30 --- 06 43 08 68.0 25.9 -2.0 -127.3 480 492 13 01 34 13 10 00 0836+710 06 43 38 68.0 25.8 -2.0 -127.5 26 492 13 10 00 13 18 00 --- 06 51 39 68.5 24.7 -1.9 -130.4 480 553 13 10 04 13 18 30 0836+710 06 52 09 68.5 24.6 -1.8 -130.6 26 553 13 18 30 13 26 30 --- 07 00 11 69.0 23.4 -1.7 -133.6 480 614 13 18 34 Schedule for JODRELL2 (Code Jb ) Page 3 NME + FTP FT 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 ---------------------------------------------------------------------------------------- --- Tue 17 Jun 2014 Day 168 --- ---------- FTP scan ---------- 13 27 00 0836+710 07 00 41 69.1 23.3 -1.7 -133.8 26 614 13 27 00 13 31 00 --- 07 04 41 69.3 22.7 -1.6 -135.3 240 645 13 27 04 ---------- ~2 min gap, perhaps useful for pointing! ---------- 13 33 00 0836+710 07 06 42 69.4 22.3 -1.6 -136.1 115 645 13 33 00 13 34 00 --- 07 07 42 69.5 22.2 -1.6 -136.5 60 653 13 33 04 13 34 30 0836+710 07 08 12 69.5 22.1 -1.6 -136.7 26 653 13 34 30 13 42 30 --- 07 16 13 69.9 20.7 -1.4 -140.0 480 714 13 34 34 13 43 00 0836+710 07 16 43 70.0 20.6 -1.4 -140.2 26 714 13 43 00 13 51 00 --- 07 24 45 70.4 19.0 -1.3 -143.5 480 776 13 43 04 13 51 30 0836+710 07 25 15 70.4 18.9 -1.3 -143.7 26 776 13 51 30 13 59 30 --- 07 33 16 70.8 17.3 -1.2 -147.1 480 837 13 51 34 14 00 00 0836+710 07 33 46 70.8 17.2 -1.2 -147.3 26 837 14 00 00 14 08 00 --- 07 41 48 71.1 15.5 -1.0 -150.9 480 899 14 00 04 14 08 30 0836+710 07 42 18 71.1 15.4 -1.0 -151.1 26 899 14 08 30 14 16 30 --- 07 50 19 71.4 13.5 -0.9 -154.7 480 960 14 08 34 14 17 00 0836+710 07 50 49 71.5 13.4 -0.9 -155.0 26 960 14 17 00 14 25 00 --- 07 58 50 71.7 11.5 -0.7 -158.7 480 1021 14 17 04 14 25 30 0836+710 07 59 20 71.7 11.4 -0.7 -158.9 26 1021 14 25 30 14 33 30 --- 08 07 22 72.0 9.4 -0.6 -162.7 480 1083 14 25 34 14 34 00 0836+710 08 07 52 72.0 9.3 -0.6 -162.9 26 1083 14 34 00 14 42 00 --- 08 15 53 72.1 7.2 -0.4 -166.8 480 1144 14 34 04 14 42 30 0836+710 08 16 23 72.1 7.1 -0.4 -167.0 26 1144 14 42 30 14 50 30 --- 08 24 25 72.3 5.0 -0.3 -170.9 480 1206 14 42 34 ---------- FTP scan ---------- 14 51 00 0836+710 08 24 55 72.3 4.8 -0.3 -171.2 25 1206 14 51 00 14 55 00 --- 08 28 55 72.3 3.7 -0.2 -173.1 240 1236 14 51 04 Schedule for JODRELL2 (Code Jb ) Page 4 NME + FTP FT 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 ---------------------------------------------------------------------------------------- --- Tue 17 Jun 2014 Day 168 --- ---------- ~2 min gap, perhaps useful for pointing! ---------- 14 57 00 0836+710 08 30 56 72.3 3.2 -0.2 -174.1 114 1236 14 57 00 15 00 00 --- 08 33 56 72.4 2.4 -0.1 -175.6 180 1260 14 57 04 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess214.K1024 Matching groups in /usr/local/sched_11.3U1/catalogs/freq.dat: j2b1cm Guess from NET1A in PC-SCHED, must be using Low patch ****** Only 200.00 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 1 Station: JODRELL2 Total bit rate: 1024 Format: MKIV1:2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 0.50 Disk used to record data. 1st LO= 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 7 BBC SB= L L U U L L U U L L U U L L U U IF = 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 2 Setup file default. Used with PCAL = off LO sum= 22187.49 22187.49 22187.49 22187.49 22219.49 22219.49 22219.49 22219.49 22251.49 22251.49 22251.49 22251.49 22283.49 22283.49 22283.49 22283.49 BBC fr= 107.49 107.49 107.49 107.49 139.49 139.49 139.49 139.49 171.49 171.49 171.49 171.49 203.49 203.49 203.49 203.49 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 2 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) J0841+7053 08 36 21.556645 * 08 41 24.365283 08 42 48.012231 0.31 * 0836+710 71 04 22.42740 * 70 53 42.17302 70 50 38.28797 0.10 J0841+70 /usr/local/sched_11.3U1/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 4322 observations SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline 0836+710 sess214.K1024 1 2 3 4 5 6 9 10 11 12 13 1 + 2.733 328.000 EFFECT OF SOLAR CORONA 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) 0836+710 53.9 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