COVER INFORMATION Station: HART (Code Hh ) Experiment: Network Monitoring Experiment Exp. Code: N25C1 Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Junghwan Oh Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: oh@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 6cm NME and ftp fringe test for 2025 Session 1 (4096 Mbps, L+R, 2-bit sampling, 32 MHz filters) Please DO NOT use the phase cal signal. v2: removed ftp fringe-test segment from scan 13 COVER LETTER: This is the schedule for the 6 cm C-band fringe test on 7th March 2025 involving 15 antennas: Jb1 Wb Ef On85 T6 Ur Tr Ys Hh Sr Cm Da De Kn Pi. The FTP-NME uses a standard setup at 4096 Mbps. The schedule consists of long integrations on J0238+1636 and J0530+1331 Ftp-fringe tests are scheduled as follows : 12:13:00 (scan 2, 2 sec, J0238+1636) 12:43:00 (scan 4, 2 sec, J0238+1636) 13:18:00 (scan 6, 2 sec, J0530+1331) 13:48:00 (scan 8, 2 sec, J0530+1331) 14:18:00 (scan 10, 2 sec, J0530+1331) 14:48:00 (scan 12, 2 sec, J0530+1331) 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 7 Mar 2025 Day 66 --- Next scan frequencies: 4632.00 4632.00 4632.00 4632.00 4696.00 4696.00 4696.00 4696.00 4760.00 4760.00 4760.00 4760.00 4824.00 4824.00 4824.00 4824.00 4888.00 4888.00 4888.00 4888.00 4952.00 4952.00 4952.00 4952.00 5016.00 5016.00 5016.00 5016.00 5080.00 5080.00 5080.00 5080.00 Next BBC frequencies: 32.00 32.00 32.00 32.00 96.00 96.00 96.00 96.00 160.00 160.00 160.00 160.00 224.00 224.00 224.00 224.00 288.00 288.00 288.00 288.00 352.00 352.00 352.00 352.00 416.00 416.00 416.00 416.00 480.00 480.00 480.00 480.00 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 12 00 00 J0238+1636 00 52 35 40.0 34.4 -1.8 0.0 0 0 12 00 00 12 05 00 =0235+164 00 57 36 40.6 33.1 -1.7 0.0 300 155 12 00 01 12 10 00 J0238+1636 01 02 36 41.2 31.7 -1.6 0.0 279 155 12 10 00 12 15 00 =0235+164 01 07 37 41.8 30.3 -1.5 0.0 300 309 12 10 01 12 20 00 J0238+1636 01 12 38 42.4 28.8 -1.5 0.0 279 309 12 20 00 12 30 00 =0235+164 01 22 40 43.4 25.9 -1.3 0.0 600 618 12 20 01 12 35 00 J0238+1636 01 27 41 43.9 24.4 -1.2 0.0 279 618 12 35 00 12 45 00 =0235+164 01 37 42 44.8 21.2 -1.0 0.0 600 927 12 35 01 12 50 00 J0238+1636 01 42 43 45.2 19.6 -1.0 0.0 279 927 12 50 00 13 00 00 =0235+164 01 52 45 45.9 16.4 -0.8 0.0 600 1237 12 50 01 13 10 00 J0530+1331 02 02 46 25.6 58.6 -3.5 0.0 488 1237 13 10 00 13 20 00 =0528+134 02 12 48 27.5 56.9 -3.3 0.0 600 1546 13 10 01 13 25 00 J0530+1331 02 17 49 28.4 56.0 -3.2 0.0 279 1546 13 25 00 13 35 00 =0528+134 02 27 50 30.3 54.2 -3.1 0.0 600 1855 13 25 01 13 40 00 J0530+1331 02 32 51 31.2 53.3 -3.0 0.0 279 1855 13 40 00 13 50 00 =0528+134 02 42 53 32.9 51.3 -2.8 0.0 600 2164 13 40 01 13 55 00 J0530+1331 02 47 54 33.8 50.3 -2.7 0.0 279 2164 13 55 00 14 05 00 =0528+134 02 57 55 35.5 48.2 -2.6 0.0 600 2473 13 55 01 14 10 00 J0530+1331 03 02 56 36.4 47.1 -2.5 0.0 279 2473 14 10 00 14 20 00 =0528+134 03 12 58 38.0 44.8 -2.3 0.0 600 2782 14 10 01 14 25 00 J0530+1331 03 17 59 38.8 43.6 -2.2 0.0 279 2782 14 25 00 14 35 00 =0528+134 03 28 00 40.3 41.2 -2.1 0.0 600 3092 14 25 01 Schedule for HART (Code Hh ) 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 ---------------------------------------------------------------------------------------- --- Fri 7 Mar 2025 Day 66 --- 14 40 00 J0530+1331 03 33 01 41.0 39.9 -2.0 0.0 279 3092 14 40 00 14 50 00 =0528+134 03 43 03 42.4 37.2 -1.8 0.0 600 3401 14 40 01 14 55 00 J0530+1331 03 48 04 43.1 35.8 -1.7 0.0 279 3401 14 55 00 15 00 00 =0528+134 03 53 04 43.7 34.4 -1.7 0.0 300 3555 14 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.C4096 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: hh6cm_S2 Values confirmed by E-mail Jonathan Quick 20140219 (CR) ****** Only 462.00 of 1024.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 4 Station: HART Total bit rate: 4096 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 32 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 Net SB= L L U U L L U U L L U U L L U U 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 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 RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 5 13 5 13 6 14 6 14 7 15 7 15 8 16 8 16 BBC SB= L L U U L L U U L L U U L L U U L L U U L L U U L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 B2 C1 B2 C1 B2 C1 B2 C1 B2 C1 B2 C1 B2 C1 B2 C1 The following frequency sets based on these setups were used. Frequency Set: 9 Setup file default. Used with PCAL = off LO sum= 4632.00 4632.00 4632.00 4632.00 4696.00 4696.00 4696.00 4696.00 4760.00 4760.00 4760.00 4760.00 4824.00 4824.00 4824.00 4824.00 4888.00 4888.00 4888.00 4888.00 4952.00 4952.00 4952.00 4952.00 5016.00 5016.00 5016.00 5016.00 5080.00 5080.00 5080.00 5080.00 BBC fr= 32.00 32.00 32.00 32.00 96.00 96.00 96.00 96.00 160.00 160.00 160.00 160.00 224.00 224.00 224.00 224.00 288.00 288.00 288.00 288.00 352.00 352.00 352.00 352.00 416.00 416.00 416.00 416.00 480.00 480.00 480.00 480.00 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 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, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) 0235+164 02 35 52.630214 * 02 38 38.930106 02 40 01.989621 0.12 * J0238+1636 16 24 04.01612 * 16 36 59.27454 16 43 30.10101 0.16 J0238+16 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 64441 observations. 0528+134 05 28 06.759216 * 05 30 56.416746 05 32 22.134738 0.21 * J0530+1331 13 29 42.28882 * 13 31 55.14948 13 33 03.55493 0.24 J0530+13 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 138236 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 J0238+1636 sess125.C4096 1 2 3 4 5 6 7 9 10 11 0.667 70.000 J0530+1331 sess125.C4096 1 2 3 4 5 6 7 9 10 11 1.250 131.250 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) J0238+1636 55.6 J0530+1331 95.9 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