COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Network Monitoring Experiment Exp. Code: N15L3 Schedule Version: 2.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Minnie Mao Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596508 EMAIL: mao@jive.eu Fax: Phone during observation: +31-521-596508 Observing mode: Notes: 18cm NME and 4 ftp fringe tests for session 3/2015 512 Mbps, L+R, 2-bit sampling, 8 MHz filters Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 18cm NME and ftp fringe-test on 15 October 2015 involving 15 antennas: Ef Wb1 Jb1 On85 Mc Sh T6 Ur Tr Sv Zc Bd Hh Sr Ir. The NME uses a standard 512 Mbps setup. The schedule consists of long integrations on strong calibrators (J1642+3948 aka. 3C345 and J1751+0939) for ftp-fringe tests. At 18cm, 3C345 (J1642+3948) is ~3.5 Jy/beam and J1751+0939 is ~2.9Jy/beam) Four ftp-fringe tests are scheduled throughout the experiment: 11:39:00 (scan 2, 2 sec, J1642+3948) 12:39:00 (scan 8, 2 sec, J1642+3948) 13:04:00 (scan 11, 2 sec, J1751+0939) 14:09:00 (scan 17, 2 sec, J1751+0939) All antennas will participate in at least two FTP fringe tests. Please make sure that the autoftp is set up correctly. Thanks! Good luck with the session and see you on Skype! Minnie Skype account: mini_mintaka Schedule for JODRELL1 (Code Jb ) Page 2 Network Monitoring Experiment 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 15 Oct 2015 Day 288 --- 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: 124.49 124.49 124.49 124.49 140.49 140.49 140.49 140.49 156.49 156.49 156.49 156.49 172.49 172.49 172.49 172.49 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 11 30 00 J1642+3948 12 55 30 49.7 85.8 -3.8 -51.0 0 0 11 30 00 11 34 00 =3C345 12 59 30 50.3 86.5 -3.7 -51.0 240 15 11 30 01 11 36 00 J1642+3948 13 01 31 50.6 86.9 -3.7 -51.1 112 15 11 36 00 11 40 00 =3C345 13 05 31 51.2 87.7 -3.6 -51.1 240 31 11 36 01 11 42 00 J1642+3948 13 07 32 51.5 88.1 -3.6 -51.1 112 31 11 42 00 11 45 00 =3C345 13 10 32 52.0 88.6 -3.5 -51.1 180 42 11 42 01 11 47 00 J1642+3948 13 12 33 52.3 89.0 -3.5 -51.1 112 42 11 47 00 12 00 00 =3C345 13 25 35 54.2 91.7 -3.3 -51.1 780 92 11 47 01 12 02 00 J1642+3948 13 27 35 54.5 92.1 -3.3 -51.1 112 92 12 02 00 12 15 00 =3C345 13 40 37 56.5 94.9 -3.0 -50.9 780 142 12 02 01 12 17 00 J1642+3948 13 42 38 56.8 95.3 -3.0 -50.9 112 142 12 17 00 12 30 00 =3C345 13 55 40 58.7 98.3 -2.8 -50.4 780 192 12 17 01 12 32 00 J1642+3948 13 57 40 59.0 98.8 -2.8 -50.3 112 192 12 32 00 12 34 00 =3C345 13 59 40 59.3 99.2 -2.7 -50.2 120 200 12 32 01 12 36 00 J1642+3948 14 01 41 59.6 99.7 -2.7 -50.1 112 200 12 36 00 12 40 00 =3C345 14 05 41 60.2 100.7 -2.6 -49.9 240 215 12 36 01 12 42 00 J1642+3948 14 07 42 60.5 101.2 -2.6 -49.8 112 215 12 42 00 12 45 00 =3C345 14 10 42 60.9 102.0 -2.5 -49.6 180 227 12 42 01 12 55 00 J1751+0939 14 20 44 29.4 115.6 -3.5 -33.2 345 227 12 55 00 13 00 00 =1749+096 14 25 45 30.0 116.8 -3.4 -32.8 300 246 12 55 01 13 02 00 J1751+0939 14 27 45 30.3 117.2 -3.4 -32.7 112 246 13 02 00 13 05 00 =1749+096 14 30 45 30.7 118.0 -3.4 -32.4 180 258 13 02 01 13 07 00 J1751+0939 14 32 46 31.0 118.5 -3.3 -32.3 112 258 13 07 00 13 15 00 =1749+096 14 40 47 32.0 120.4 -3.2 -31.6 480 288 13 07 01 13 17 00 J1751+0939 14 42 47 32.3 120.9 -3.2 -31.4 112 288 13 17 00 13 30 00 =1749+096 14 55 50 33.9 124.2 -2.9 -30.1 780 338 13 17 01 Schedule for JODRELL1 (Code Jb ) Page 3 Network Monitoring Experiment 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 15 Oct 2015 Day 288 --- 13 32 00 J1751+0939 14 57 50 34.2 124.7 -2.9 -29.9 112 338 13 32 00 13 45 00 =1749+096 15 10 52 35.7 128.2 -2.7 -28.5 780 388 13 32 01 13 47 00 J1751+0939 15 12 52 36.0 128.7 -2.7 -28.3 112 388 13 47 00 14 00 00 =1749+096 15 25 54 37.4 132.2 -2.4 -26.7 780 438 13 47 01 14 02 00 J1751+0939 15 27 55 37.7 132.8 -2.4 -26.5 111 438 14 02 00 14 04 00 =1749+096 15 29 55 37.9 133.4 -2.4 -26.2 120 446 14 02 01 14 06 00 J1751+0939 15 31 55 38.1 133.9 -2.3 -25.9 111 446 14 06 00 14 10 00 =1749+096 15 35 56 38.5 135.1 -2.3 -25.4 240 462 14 06 01 14 12 00 J1751+0939 15 37 56 38.7 135.6 -2.2 -25.1 111 462 14 12 00 14 15 00 =1749+096 15 40 57 39.1 136.5 -2.2 -24.7 180 473 14 12 01 14 17 00 J1751+0939 15 42 57 39.3 137.1 -2.2 -24.4 111 473 14 17 00 14 30 00 =1749+096 15 55 59 40.5 140.9 -1.9 -22.5 780 523 14 17 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess315.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: 8 Station: JODRELL1 Total bit rate: 512 Format: MARK5B Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 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 = 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: 3 Setup file default. Used with PCAL = off 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= 124.49 124.49 124.49 124.49 140.49 140.49 140.49 140.49 156.49 156.49 156.49 156.49 172.49 172.49 172.49 172.49 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: 3 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) 3C345 16 41 17.606228 * 16 42 58.809966 16 43 29.392560 0.76 * J1642+3948 39 54 10.81496 * 39 48 36.99402 39 47 16.25032 0.52 1641+399 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc J1642+39 GSFC 2015a astro solution, unpublished 53430 observations. 1749+096 17 49 10.387931 * 17 51 32.818574 17 52 17.116205 0.00 * J1751+0939 09 39 42.82591 * 09 39 00.72847 09 39 08.79451 0.00 J1751+09 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 144578 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 J1642+3948 sess315.L512 1 2 3 4 5 6 7 8 11 12 13 14 + 0.983 89.483 J1751+0939 sess315.L512 1 2 3 4 5 6 7 8 11 12 13 14 + 1.283 127.351 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) J1642+3948 67.2 J1751+0939 70.0 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