COVER INFORMATION Station: IRBENE16 (Code Ib ) Experiment: H2O megamaser VLBI: a powerful tool to study ejection and accretion Exp. Code: ET038A Schedule Version: 1.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 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 IC485 at 5 GHz (2048 Mb/s) Notes: phase-cal OFF source = IC485 Schedule for IRBENE16 (Code Ib ) 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 ---------------------------------------------------------------------------------------- --- Fri 25 May 2018 Day 145 --- 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: 842.49 842.49 842.49 842.49 874.49 874.49 874.49 874.49 906.49 906.49 906.49 906.49 938.49 938.49 938.49 938.49 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 12 00 00 DA193 05 39 29 72.0-190.8 -0.3 -7.5 0 0 12 00 00 12 05 00 --- 05 44 30 72.1-187.7 -0.2 -5.4 300 39 12 00 01 12 07 20 J0802+2509 05 46 51 49.4-231.6 -2.3 -27.6 115 39 12 07 20 12 10 20 =0759+252 05 49 51 49.7-230.6 -2.2 -27.3 180 62 12 07 21 12 10 20 IC485 05 49 51 51.4-231.0 -2.2 -27.8 -4 62 No stop 12 15 50 --- 05 55 22 51.9-229.3 -2.1 -27.0 326 104 12 10 21 12 16 20 J0802+2509 05 55 52 50.4-228.7 -2.1 -26.4 26 104 12 16 20 12 19 20 =0759+252 05 58 53 50.7-227.8 -2.1 -26.0 180 128 12 16 21 12 19 20 IC485 05 58 53 52.3-228.1 -2.0 -26.5 -4 128 No stop 12 24 50 --- 06 04 23 52.8-226.3 -2.0 -25.7 326 170 12 19 21 12 25 20 J0802+2509 06 04 54 51.3-225.8 -2.0 -25.1 26 170 12 25 20 12 28 20 =0759+252 06 07 54 51.5-224.8 -1.9 -24.7 180 193 12 25 21 12 28 20 IC485 06 07 54 53.2-225.1 -1.9 -25.2 -4 193 No stop 12 33 50 --- 06 13 25 53.7-223.2 -1.8 -24.3 326 236 12 28 21 12 34 20 J0802+2509 06 13 55 52.1-222.8 -1.8 -23.7 26 236 12 34 20 12 37 20 =0759+252 06 16 56 52.4-221.8 -1.8 -23.3 180 259 12 34 21 12 37 20 IC485 06 16 56 54.0-222.0 -1.7 -23.7 -4 259 No stop 12 42 50 --- 06 22 26 54.5-220.1 -1.6 -22.7 326 301 12 37 21 12 43 20 J0802+2509 06 22 57 52.9-219.7 -1.7 -22.3 26 301 12 43 20 12 46 20 =0759+252 06 25 57 53.1-218.7 -1.6 -21.7 180 325 12 43 21 12 46 20 IC485 06 25 57 54.8-218.8 -1.6 -22.1 -4 325 No stop 12 51 50 --- 06 31 28 55.2-216.8 -1.5 -21.1 326 367 12 46 21 12 52 20 J0802+2509 06 31 58 53.6-216.6 -1.5 -20.7 26 367 12 52 20 12 55 20 =0759+252 06 34 59 53.9-215.5 -1.5 -20.1 180 390 12 52 21 12 55 20 IC485 06 34 59 55.5-215.5 -1.4 -20.4 -4 390 No stop 13 00 50 --- 06 40 29 55.9-213.5 -1.3 -19.3 326 433 12 55 21 Schedule for IRBENE16 (Code Ib ) 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 ---------------------------------------------------------------------------------------- --- Fri 25 May 2018 Day 145 --- 13 01 20 J0802+2509 06 40 59 54.3-213.3 -1.4 -19.0 26 433 13 01 20 13 04 20 =0759+252 06 44 00 54.6-212.2 -1.3 -18.4 180 456 13 01 21 13 04 20 IC485 06 44 00 56.2-212.2 -1.3 -18.6 -4 456 No stop 13 09 50 --- 06 49 31 56.6-210.0 -1.2 -17.5 326 499 13 04 21 13 10 20 J0802+2509 06 50 01 55.0-209.9 -1.2 -17.2 26 499 13 10 20 13 13 20 =0759+252 06 53 01 55.2-208.8 -1.2 -16.6 180 522 13 10 21 13 13 20 IC485 06 53 01 56.8-208.7 -1.1 -16.7 -4 522 No stop 13 18 50 --- 06 58 32 57.1-206.5 -1.0 -15.5 326 564 13 13 21 13 19 20 J0802+2509 06 59 02 55.5-206.5 -1.1 -15.3 26 564 13 19 20 13 22 20 =0759+252 07 02 03 55.7-205.3 -1.0 -14.7 180 587 13 19 21 13 22 20 IC485 07 02 03 57.4-205.1 -1.0 -14.8 -4 587 No stop 13 27 50 --- 07 07 34 57.7-202.9 -0.9 -13.5 326 630 13 22 21 13 28 20 J0802+2509 07 08 04 56.0-203.0 -0.9 -13.4 26 630 13 28 20 13 31 20 =0759+252 07 11 04 56.2-201.8 -0.9 -12.7 180 653 13 28 21 13 31 20 IC485 07 11 04 57.8-201.5 -0.8 -12.7 -4 653 No stop 13 36 50 --- 07 16 35 58.1-199.2 -0.7 -11.4 326 696 13 31 21 13 37 20 J0802+2509 07 17 05 56.5-199.4 -0.8 -11.3 26 696 13 37 20 13 40 20 =0759+252 07 20 06 56.6-198.2 -0.7 -10.6 180 719 13 37 21 13 40 20 IC485 07 20 06 58.2-197.7 -0.7 -10.5 -4 719 No stop 13 45 50 --- 07 25 37 58.4-195.4 -0.6 -9.2 326 761 13 40 21 13 46 20 J0802+2509 07 26 07 56.8-195.7 -0.6 -9.2 26 761 13 46 20 13 49 20 =0759+252 07 29 07 57.0-194.5 -0.6 -8.5 180 785 13 46 21 13 49 20 IC485 07 29 07 58.6-193.9 -0.5 -8.3 -4 785 No stop 13 54 50 --- 07 34 38 58.7-191.6 -0.4 -6.9 326 827 13 49 21 13 55 20 J0802+2509 07 35 08 57.1-192.0 -0.5 -7.1 26 827 13 55 20 13 58 20 =0759+252 07 38 09 57.2-190.8 -0.4 -6.3 180 850 13 55 21 13 58 20 IC485 07 38 09 58.8-190.1 -0.4 -6.0 -4 850 No stop 14 03 50 --- 07 43 40 58.9-187.7 -0.3 -4.6 326 893 13 58 21 14 04 20 J0802+2509 07 44 10 57.4-188.2 -0.3 -4.9 26 893 14 04 20 14 07 20 =0759+252 07 47 10 57.4-187.0 -0.3 -4.1 180 916 14 04 21 Schedule for IRBENE16 (Code Ib ) Page 4 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 ---------------------------------------------------------------------------------------- --- Fri 25 May 2018 Day 145 --- 14 07 20 IC485 07 47 10 59.0-186.2 -0.2 -3.7 -4 916 No stop 14 12 50 --- 07 52 41 59.1-183.8 -0.1 -2.3 326 958 14 07 21 14 13 20 J0802+2509 07 53 11 57.5-184.5 -0.2 -2.6 26 958 14 13 20 14 14 50 =0759+252 07 54 42 57.5-183.8 -0.2 -2.3 90 970 14 13 21 14 14 50 IC485 07 54 42 59.1-182.9 -0.1 -1.8 -4 970 No stop 14 17 30 --- 07 57 22 59.1-181.8 -0.1 -1.1 156 991 14 14 51 14 18 00 J0802+2509 07 57 52 57.5-182.5 -0.1 -1.5 26 991 14 18 00 14 21 00 =0759+252 08 00 53 57.5-181.2 -0.0 -0.7 180 1014 14 18 01 14 25 00 DA193 08 04 53 62.8-116.8 2.1 38.5 205 1014 14 25 00 14 30 00 --- 08 09 54 62.2-115.2 2.2 39.2 300 1052 14 25 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess218.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: 13 Station: IRBENE16 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= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 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 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 6 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= 842.49 842.49 842.49 842.49 874.49 874.49 874.49 874.49 906.49 906.49 906.49 906.49 938.49 938.49 938.49 938.49 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: 6 13 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) * IC485 07 57 16.742657 * 08 00 19.760000 08 01 24.982845 0.00 26 50 21.55620 * 26 42 05.10000 26 39 01.29401 0.00 From catalog imbedded in main SCHED input file. 0552+398 05 52 01.407169 * 05 55 30.805611 05 56 45.071352 0.00 J0555+3948 39 48 21.94581 * 39 48 49.16496 39 48 51.55338 0.00 * DA193 /opt/sched/catalogs/sources.gsfc J0555+39 GSFC 2015a astro solution, unpublished 394383 observations. 0759+252 07 59 40.673049 * 08 02 41.587429 08 03 46.081191 0.25 * J0802+2509 25 17 36.37276 * 25 09 10.89814 25 06 03.51987 0.34 /opt/sched/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 119 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 IC485 sess218.C1024 1 2 3 4 5 6 7 8 9 10 1.328 96.826 DA193 sess218.C1024 1 2 3 4 5 6 7 8 9 10 0.167 13.000 J0802+2509 sess218.C1024 1 2 3 4 5 6 7 8 9 10 0.775 59.850 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) IC485 53.0 DA193 29.6 J0802+2509 53.7 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