COVER INFORMATION Station: ARECIBO (Code Ar ) Experiment: Network Monitoring Experiment Exp. Code: N19L3 Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Dhanya G.Nair Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: nair@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 18cm NME and ftp fringe test for Session 3 2019 (512 Mbps, L+R, 2-bit sampling, 8 MHz filters) COVER LETTER: This is the schedule for the 18cm NME and ftp fringe-test on 2nd Nov 2019 involving antennas: Jb1, Wb1, Ef, Mc, Nt, On85, T6, Ur, Tr, Hh, Sv, Zc, Bd, Ir, Sr, Ar The NME uses a standard setup with 512 Mbps. The schedule consists of long integrations on calibrators J0956+2515 and J2148+0657. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 12:23:00 (scan 2, 2 sec, J0956+2515) 12:53:00 (scan 4, 2 sec, J0956+2515) 13:23:00 (scan 6, 2 sec, J2148+0657) ! Arecibo out 13:53:00 (scan 8, 2 sec, J2148+0657 ) 14:23:00 (scan 10, 2 sec, J2148+0657 ) 14:53:00 (scan 12, 2 sec, J2148+0657 ) The first two tests will include Arecibo. Clear Skies! Dhanya G.Nair Mattermost: coms.evlbi.org 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 ---------------------------------------------------------------------------------------- --- Sat 2 Nov 2019 Day 306 --- Next scan frequencies: 1626.25 1626.25 1642.25 1642.25 1658.25 1658.25 1674.25 1674.25 Next BBC frequencies: 773.75 773.75 757.75 757.75 741.75 741.75 725.75 725.75 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 12 00 00 J0956+2515 10 18 54 81.6 325.4 0.3 143.5 0 0 12 00 00 12 10 00 =OK290 10 28 55 80.1 314.8 0.5 131.9 600 39 12 00 01 12 13 00 J0956+2515 10 31 56 79.6 312.3 0.6 129.2 170 39 12 13 00 12 25 00 =OK290 10 43 58 77.3 304.6 0.8 120.3 720 85 12 13 01 12 35 00 J0956+2515 10 53 59 75.3 300.1 0.9 114.9 587 85 12 35 00 12 40 00 =OK290 10 59 00 74.3 298.4 1.0 112.7 300 104 12 35 01 12 43 00 J0956+2515 11 02 01 73.7 297.4 1.1 111.5 170 104 12 43 00 12 55 00 =OK290 11 14 03 71.1 294.5 1.3 107.3 720 151 12 43 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess319.L512 Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq_RDBE.dat: arlb5c RX=LBW, with lfbf=5, upper 300 MHz CS 15-May-06 Setup group: 1 Station: ARECIBO Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U U U U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C The following frequency sets based on these setups were used. Frequency Set: 11 Setup file default. Used with PCAL = off LO sum= 1626.25 1626.25 1642.25 1642.25 1658.25 1658.25 1674.25 1674.25 BBC fr= 773.75 773.75 757.75 757.75 741.75 741.75 725.75 725.75 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 11 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 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 55.539960 0.41 * J0956+2515 25 29 33.58581 * 25 15 16.04991 25 09 37.05879 0.37 0953+254 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0956+25 GSFC 2016a X/S astro solution, 26975 observations. 2145+067 21 45 36.078473 * 21 48 05.458671 21 49 03.935273 0.26 * J2148+0657 06 43 40.90456 * 06 57 38.60416 07 03 15.90071 0.25 J2148+06 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 110505 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 J0956+2515 sess319.L512 1 2 3 4 5 6 7 8 9 10 11 0.650 33.750 J2148+0657 sess319.L512 1 2 3 4 5 6 7 8 9 10 12 13 + 1.417 142.176 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 77.3 J2148+0657 110.9 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