COVER INFORMATION Station: WSTRBORK (Code Wb ) Experiment: H2O megamaser VLBI: a powerful tool to study ejection and accretion Exp. Code: ET038E Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: A. Tarchi Address: INAF - Osservatorio Astronomico di Cagliari Via della Scienza 5 I-09047 Selargius (Cagliari) Italy Phone: +39 070 71180235 EMAIL: andrea.tarchi@inaf.it Fax: Phone during observation: +39 070 71180235 Observing mode: Observations of NGC3735 at 5 GHz (1024 Mb/s) Notes: phase-cal OFF source = NGC3735 Schedule for WSTRBORK (Code Wb ) Page 2 H2O megamaser VLBI: a powerful tool to study ejection and accretion 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 20 Oct 2018 Day 293 --- Next scan frequencies: 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 Next BBC frequencies: 355.49 355.49 355.49 355.49 387.49 387.49 387.49 387.49 419.49 419.49 419.49 419.49 451.49 451.49 451.49 451.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 00 00 00 DA193 02 20 01 51.4 87.5 -3.6 0.0 0 0 00 00 00 00 05 00 --- 02 25 01 52.2 88.4 -3.5 0.0 300 39 00 00 01 02 47 50 4C39.25 05 08 18 44.4 80.6 -4.3 0.0 9590 39 02 47 50 02 52 50 --- 05 13 19 45.2 81.5 -4.2 0.0 300 77 02 47 51 03 14 20 J1134+7249 05 34 52 49.6 27.3 -6.0 D 0.0 1107 77 03 14 20 03 17 20 =1131+730 05 37 53 49.8 27.4 -6.0 0.0 0 100 03 14 21 03 17 20 NGC3735 05 37 53 48.8 30.6 -6.0 0.0 -21 100 No stop 03 22 50 --- 05 43 24 49.2 30.8 -5.9 0.0 309 143 03 17 21 03 23 35 J1134+7249 05 44 09 50.2 27.7 -5.9 0.0 24 143 03 23 35 03 26 35 =1131+730 05 47 09 50.4 27.8 -5.8 0.0 180 166 03 23 36 03 26 35 NGC3735 05 47 09 49.5 31.0 -5.8 0.0 -21 166 No stop 03 32 05 --- 05 52 40 50.0 31.3 -5.7 0.0 309 209 03 26 36 03 32 50 J1134+7249 05 53 25 50.9 28.0 -5.7 0.0 24 209 03 32 50 03 35 50 =1131+730 05 56 26 51.1 28.1 -5.6 0.0 180 232 03 32 51 03 35 50 NGC3735 05 56 26 50.2 31.5 -5.7 0.0 -21 232 No stop 03 41 20 --- 06 01 57 50.7 31.7 -5.6 0.0 309 274 03 35 51 03 42 05 J1134+7249 06 02 42 51.6 28.3 -5.5 0.0 24 274 03 42 05 03 45 05 =1131+730 06 05 42 51.8 28.4 -5.5 0.0 180 298 03 42 06 03 45 05 NGC3735 06 05 42 51.0 31.9 -5.5 0.0 -21 298 No stop 03 50 35 --- 06 11 13 51.4 32.1 -5.4 0.0 309 340 03 45 06 03 51 20 J1134+7249 06 11 59 52.2 28.6 -5.4 0.0 24 340 03 51 20 03 54 20 =1131+730 06 14 59 52.4 28.7 -5.3 0.0 180 363 03 51 21 03 54 20 NGC3735 06 14 59 51.7 32.2 -5.4 0.0 -21 363 No stop 03 59 50 --- 06 20 30 52.2 32.4 -5.3 0.0 309 406 03 54 21 04 00 35 J1134+7249 06 21 15 52.9 28.8 -5.2 0.0 24 406 04 00 35 04 03 35 =1131+730 06 24 16 53.1 28.9 -5.2 0.0 180 429 04 00 36 Schedule for WSTRBORK (Code Wb ) Page 3 H2O megamaser VLBI: a powerful tool to study ejection and accretion 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 20 Oct 2018 Day 293 --- 04 03 35 NGC3735 06 24 16 52.5 32.6 -5.2 0.0 -21 429 No stop 04 09 05 --- 06 29 46 52.9 32.7 -5.1 0.0 309 471 04 03 36 04 09 50 J1134+7249 06 30 32 53.6 29.1 -5.1 0.0 24 471 04 09 50 04 12 50 =1131+730 06 33 32 53.8 29.1 -5.0 0.0 180 495 04 09 51 04 12 50 NGC3735 06 33 32 53.2 32.9 -5.1 0.0 -21 495 No stop 04 18 20 --- 06 39 03 53.7 33.0 -5.0 0.0 309 537 04 12 51 04 19 05 J1134+7249 06 39 48 54.2 29.2 -4.9 0.0 24 537 04 19 05 04 22 05 =1131+730 06 42 49 54.5 29.3 -4.9 0.0 180 560 04 19 06 04 22 05 NGC3735 06 42 49 54.0 33.1 -4.9 0.0 -21 560 No stop 04 27 35 --- 06 48 19 54.4 33.3 -4.8 0.0 309 603 04 22 06 04 28 20 J1134+7249 06 49 05 54.9 29.4 -4.8 0.0 24 603 04 28 20 04 31 20 =1131+730 06 52 05 55.2 29.4 -4.7 0.0 180 626 04 28 21 04 31 20 NGC3735 06 52 05 54.8 33.3 -4.7 0.0 -21 626 No stop 04 36 50 --- 06 57 36 55.2 33.4 -4.7 0.0 309 669 04 31 21 04 37 35 J1134+7249 06 58 21 55.6 29.5 -4.6 0.0 24 669 04 37 35 04 40 35 =1131+730 07 01 22 55.8 29.5 -4.6 0.0 180 692 04 37 36 04 40 35 NGC3735 07 01 22 55.5 33.5 -4.6 0.0 -21 692 No stop 04 46 05 --- 07 06 53 56.0 33.6 -4.5 0.0 309 734 04 40 36 04 46 50 J1134+7249 07 07 38 56.3 29.5 -4.5 0.0 24 734 04 46 50 04 50 50 =1131+730 07 11 38 56.6 29.5 -4.4 0.0 240 765 04 46 51 04 55 00 DA193 07 15 49 71.2 233.7 1.3 0.0 -49 765 04 55 00 05 00 00 --- 07 20 50 70.6 236.0 1.4 0.0 251 804 04 55 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess318.C1024 --- 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: 5 Station: WSTRBORK Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 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 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 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: 2 Setup file default. Used with PCAL = off LO sum= 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 BBC fr= 355.49 355.49 355.49 355.49 387.49 387.49 387.49 387.49 419.49 419.49 419.49 419.49 451.49 451.49 451.49 451.49 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 2 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * NGC3735 11 33 02.401363 * 11 35 57.300000 11 36 57.318691 0.00 70 48 44.61683 * 70 32 09.00000 70 25 52.03885 0.00 From catalog imbedded in main SCHED input file. 0552+398 05 52 01.407168 * 05 55 30.805611 05 56 49.066319 0.00 J0555+3948 39 48 21.94581 * 39 48 49.16496 39 48 45.92039 0.00 * DA193 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0555+39 GSFC 2016a X/S astro solution, 415688 observations. * 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 11.362636 0.31 J0927+3902 39 15 23.56644 * 39 02 20.85185 38 57 21.09516 0.16 0923+392 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0927+39 GSFC 2016a X/S astro solution, 250526 observations. 1131+730 11 31 11.755699 * 11 34 11.407802 11 35 12.555731 2.12 * J1134+7249 73 05 54.76059 * 72 49 20.05280 72 43 02.82991 1.37 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 60 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 NGC3735 sess318.C1024 1 2 3 4 5 6 7 8 9 10 11 2.658 203.129 DA193 sess318.C1024 1 2 3 4 5 6 7 8 9 10 11 0.167 11.633 4C39.25 sess318.C1024 1 2 3 4 5 6 7 8 9 10 11 0.083 7.583 J1134+7249 sess318.C1024 1 2 3 4 5 6 7 8 9 10 11 1.517 124.402 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) NGC3735 83.3 DA193 116.1 4C39.25 76.2 J1134+7249 85.4 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