COVER INFORMATION Station: HART (Code Hh ) Experiment: Network Monitoring Experiment Exp. Code: F25L1 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Benito Marcote Address: JIVE Oude Hoogeveensedijk 4 7991 PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: marcote@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: vlbi Notes: L-band (18 cm) ftp fringe test for Session 1, 2025. EVN: 1024 Mbps, L+R, 2-bit sampling, 8 BBC, 32 MHz filters eMERLIN: 512 Mbps, L+R, 2-bit sampling, 2 BBC, 64 MHz filters Please DO NOT use the phase cal signal. COVER LETTER: This is the schedule for the 18-cm ftp fringe-test on 28 February 2025 involving 10 EVN antennas + eMERLIN: Jb1, Wb, Ef, Nt, O8, T6, Ur, Tr, Hh, Ir, Cm, Da, Kn, Pi, De The NME uses a standard setup with 1024 Mbps (512 Mbps for eMERLIN). The following ftp-fringe tests are scheduled throughout the experiment (UT times): 11:10:00 (scan 2, 2 sec, J0237+2848) 11:20:00 (scan 4, 2 sec, J0237+2848) 11:30:00 (scan 6, 2 sec, J0237+2848) 11:40:00 (scan 8, 2 sec, J0237+2848) 11:50:00 (scan 10, 2 sec, J0237+2848) Face here what you Learnt during N25L1 :) Mattermost: coms.evlbi.org Schedule for HART (Code Hh ) 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 ---------------------------------------------------------------------------------------- --- Fri 28 Feb 2025 Day 59 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 116.49 116.49 116.49 116.49 180.49 180.49 180.49 180.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 11 00 00 J0237+2848 23 24 49 18.0 43.7 -3.2 0.0 0 0 11 00 00 11 05 00 =0234+285 23 29 50 18.8 42.9 -3.2 0.0 300 39 11 00 01 11 07 00 J0237+2848 23 31 50 19.1 42.5 -3.1 0.0 99 39 11 07 00 11 12 00 =0234+285 23 36 51 19.9 41.7 -3.0 0.0 300 77 11 07 01 11 14 00 J0237+2848 23 38 51 20.2 41.4 -3.0 0.0 99 77 11 14 00 11 17 00 =0234+285 23 41 52 20.6 40.8 -3.0 0.0 180 100 11 14 01 11 19 00 J0237+2848 23 43 52 20.9 40.5 -2.9 0.0 99 100 11 19 00 11 22 00 =0234+285 23 46 53 21.3 40.0 -2.9 0.0 180 124 11 19 01 11 24 00 J0237+2848 23 48 53 21.6 39.6 -2.8 0.0 99 124 11 24 00 11 27 00 =0234+285 23 51 53 22.0 39.1 -2.8 0.0 180 147 11 24 01 11 29 00 J0237+2848 23 53 54 22.3 38.7 -2.8 0.0 99 147 11 29 00 11 32 00 =0234+285 23 56 54 22.8 38.2 -2.7 0.0 180 170 11 29 01 11 34 00 J0237+2848 23 58 55 23.0 37.8 -2.7 0.0 99 170 11 34 00 11 37 00 =0234+285 00 01 55 23.4 37.2 -2.6 0.0 180 193 11 34 01 11 39 00 J0237+2848 00 03 55 23.7 36.9 -2.6 0.0 99 193 11 39 00 11 42 00 =0234+285 00 06 56 24.1 36.3 -2.5 0.0 180 216 11 39 01 11 44 00 J0237+2848 00 08 56 24.4 35.9 -2.5 0.0 99 216 11 44 00 11 47 00 =0234+285 00 11 57 24.8 35.3 -2.5 0.0 180 240 11 44 01 11 49 00 J0237+2848 00 13 57 25.0 34.9 -2.4 0.0 99 240 11 49 00 11 52 00 =0234+285 00 16 58 25.4 34.3 -2.4 0.0 180 263 11 49 01 11 55 00 J0237+2848 00 19 58 25.8 33.7 -2.3 0.0 159 263 11 55 00 12 00 00 =0234+285 00 24 59 26.4 32.7 -2.2 0.0 300 301 11 55 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess125.L1024 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: hh18cm Values confirmed by E-mail Jonathan Quick 20140219 (CR) ****** Only 122.49 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 5 Station: HART Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 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 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 9 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 BBC fr= 116.49 116.49 116.49 116.49 180.49 180.49 180.49 180.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 9 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) 0234+285 02 34 55.589593 * 02 37 52.405680 02 39 20.746482 0.11 * J0237+2848 28 35 11.40778 * 28 48 08.99003 28 54 45.32687 0.10 From catalog imbedded in main SCHED input file. 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 J0237+2848 sess125.L1024 1 2 3 4 5 6 7 8 9 10 11 0.650 68.250 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) J0237+2848 66.9 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