COVER INFORMATION Station: ARECIBO (Code Ar ) Experiment: Network Monitoring Experiment Exp. Code: N18C3 Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Ross Burns Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596507 EMAIL: burns@jive.eu Fax: Phone during observation: +31-521-596507 Observing mode: Notes: 6cm NME and ftp fringe test for session 3/2018 (512 Mbps, L+R, 2-bit sampling, 2 MHz filters) Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 6cm NME and ftp fringe-test on 18th Oct 2018 involving antennas: j2, wb, Ef, Mc, Nt, o8, T6, Ur, tr, ys, hh, Sv, Zc, Bd, Ir, Kunming, Cm, Da, Kn, Pi, De, Ar The NME uses a standard setup with 512 Mbps. The following ftp-fringe tests are scheduled throughout the experiment: 12:15:00 (scan 2, 2 sec, J0956+2515) 12:45:00 (scan 6, 2 sec, J0956+2515) 13:15:00 (scan 9, 2 sec, J1549+0237) 13:45:00 (scan 13, 2 sec, J1549+0237) 14:15:00 (scan 16, 2 sec, BLLAC) 14:45:00 (scan 20, 2 sec, BLLAC) Generally the schedule is split into thirds, the first concentrates on Ar fringe chacking (at the beginnine, at their request), the second aims to confirm fringes to Hh, the thirsd concentrates on the east asian stations. As such, the aforementioned stations will only have two data grabs in which we must fix any problems. So please be alert and ready during your time section if you are one of those stations. Kind regards, and good luck. Ross Schedule for ARECIBO (Code Ar ) 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 18 Oct 2018 Day 291 --- Next scan frequencies: 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 4998.49 4998.49 4998.49 4998.49 5014.49 5014.49 5014.49 5014.49 Next BBC frequencies: 783.51 783.51 783.51 783.51 767.51 767.51 767.51 767.51 751.51 751.51 751.51 751.51 735.51 735.51 735.51 735.51 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 J0956+2515 09 20 43 79.0 50.0 -0.6 -126.5 0 0 12 00 00 12 10 00 =OK290 09 30 44 80.7 41.5 -0.5 -136.0 600 38 12 00 01 12 12 00 J0956+2515 09 32 44 81.0 39.4 -0.4 -138.3 111 38 12 12 00 12 17 00 =OK290 09 37 45 81.7 33.5 -0.3 -144.6 300 58 12 12 01 12 24 00 J0956+2515 09 44 46 82.5 23.4 -0.2 -155.4 408 58 12 24 00 12 25 00 =OK290 09 45 47 82.6 21.8 -0.2 -157.1 60 61 12 24 01 12 26 00 J0956+2515 09 46 47 82.7 20.2 -0.2 -158.8 50 61 12 26 00 12 33 00 =OK290 09 53 48 83.1 7.7 -0.1 -171.9 420 88 12 26 01 12 34 00 J0956+2515 09 54 48 83.1 365.8 -0.1 W -173.9 -751 88 12 34 00 12 41 00 =OK290 10 01 49 83.1 352.5 0.1 W 172.1 0 115 12 34 01 12 43 00 J0956+2515 10 03 50 83.0 348.8 0.1 168.2 109 115 12 43 00 12 47 00 =OK290 10 07 50 82.8 341.7 0.2 160.8 240 131 12 43 01 12 50 00 J0956+2515 10 10 51 82.5 336.7 0.2 155.5 169 131 12 50 00 13 00 00 =OK290 10 20 52 81.3 323.0 0.4 140.8 600 169 12 50 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess318.C512 Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq_RDBE.dat: arcb4 Using up-down conversion unit + VLBIinp at 1.5 MHz Setup group: 4 Station: ARECIBO Total bit rate: 512 Format: MKIV1:2 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= 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 5750.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L 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= U U L L U U L L U U L L U U L L IF = A C A C A C A C A C A C A C A C The following frequency sets based on these setups were used. Frequency Set: 17 Setup file default. Used with PCAL = off LO sum= 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 4998.49 4998.49 4998.49 4998.49 5014.49 5014.49 5014.49 5014.49 BBC fr= 783.51 783.51 783.51 783.51 767.51 767.51 767.51 767.51 751.51 751.51 751.51 751.51 735.51 735.51 735.51 735.51 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, 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) OK290 09 53 59.738482 * 09 56 49.875376 09 57 51.768128 0.41 * J0956+2515 25 29 33.58581 * 25 15 16.04991 25 09 54.90230 0.37 0953+254 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0956+25 GSFC 2016a X/S astro solution, 26975 observations. 1546+027 15 46 58.292172 * 15 49 29.436846 15 50 24.196597 0.00 * J1549+0237 02 46 06.07597 * 02 37 01.16332 02 33 53.62473 0.01 J1549+02 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 20624 observations. VR422201 22 00 39.362504 * 22 02 43.291371 22 03 30.312394 0.01 J2202+4216 42 02 08.59075 * 42 16 39.97988 42 22 21.66773 0.00 * BLLAC /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc 2200+420 GSFC 2016a X/S astro solution, 52189 observations. J2202+42 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 J0956+2515 sess318.C512 1 2 3 4 5 6 7 8 9 12 17 0.733 86.250 J1549+0237 sess318.C512 1 2 3 4 5 6 7 8 9 12 18 19 0.783 111.010 BLLAC sess318.C512 1 2 3 4 5 6 7 8 9 12 18 20 + 0.750 133.742 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) J0956+2515 62.9 J1549+0237 36.3 BLLAC 123.9 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