COVER INFORMATION Station: ONSALA85 (Code O8 ) Experiment: H2O megamaser VLBI: a powerful tool to study ejection and accretion Exp. Code: ET038B 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 1.6 GHz (2048 Mb/s) Notes: phase-cal OFF source = IC485 Schedule for ONSALA85 (Code O8 ) 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 ---------------------------------------------------------------------------------------- --- Mon 28 May 2018 Day 148 --- Next scan frequencies: 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 Next BBC frequencies: 390.49 390.49 390.49 390.49 422.49 422.49 422.49 422.49 454.49 454.49 454.49 454.49 486.49 486.49 486.49 486.49 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 13 00 00 J0854+2006 06 11 46 42.1 123.8 -2.7 0.0 0 0 13 00 00 13 06 00 =OJ287 06 17 47 42.8 125.5 -2.6 0.0 360 46 13 00 01 13 07 10 J0802+2509 06 18 57 52.7 138.7 -1.7 0.0 16 46 13 07 10 13 10 10 =0759+252 06 21 58 52.9 139.8 -1.7 0.0 180 70 13 07 11 13 10 10 IC485 06 21 58 54.6 139.6 -1.7 0.0 -16 70 No stop 13 17 10 --- 06 28 59 55.2 142.1 -1.5 0.0 404 124 13 10 11 13 17 40 J0802+2509 06 29 29 53.6 142.4 -1.6 0.0 14 124 13 17 40 13 20 40 =0759+252 06 32 29 53.8 143.5 -1.5 0.0 180 147 13 17 41 13 20 40 IC485 06 32 29 55.5 143.4 -1.5 0.0 -16 147 No stop 13 27 40 --- 06 39 30 56.0 146.0 -1.4 0.0 404 201 13 20 41 13 28 10 J0802+2509 06 40 00 54.4 146.2 -1.4 0.0 14 201 13 28 10 13 31 10 =0759+252 06 43 01 54.6 147.3 -1.3 0.0 180 224 13 28 11 13 31 10 IC485 06 43 01 56.3 147.3 -1.3 0.0 -16 224 No stop 13 38 10 --- 06 50 02 56.8 150.0 -1.2 0.0 404 278 13 31 11 13 38 40 J0802+2509 06 50 32 55.1 150.1 -1.2 0.0 14 278 13 38 40 13 41 40 =0759+252 06 53 33 55.3 151.3 -1.2 0.0 180 301 13 38 41 13 41 40 IC485 06 53 33 57.0 151.4 -1.1 0.0 -16 301 No stop 13 48 40 --- 07 00 34 57.4 154.2 -1.0 0.0 404 356 13 41 41 13 49 10 J0802+2509 07 01 04 55.8 154.2 -1.0 0.0 14 356 13 49 10 13 52 10 =0759+252 07 04 04 56.0 155.4 -1.0 0.0 180 379 13 49 11 13 52 10 IC485 07 04 04 57.6 155.6 -1.0 0.0 -16 379 No stop 13 59 10 --- 07 11 06 58.0 158.5 -0.8 0.0 404 433 13 52 11 13 59 40 J0802+2509 07 11 36 56.4 158.3 -0.9 0.0 14 433 13 59 40 14 02 40 =0759+252 07 14 36 56.5 159.5 -0.8 0.0 180 456 13 59 41 14 02 40 IC485 07 14 36 58.2 159.9 -0.8 0.0 -16 456 No stop 14 09 40 --- 07 21 37 58.5 162.8 -0.7 0.0 404 510 14 02 41 Schedule for ONSALA85 (Code O8 ) 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 ---------------------------------------------------------------------------------------- --- Mon 28 May 2018 Day 148 --- 14 10 10 J0802+2509 07 22 07 56.9 162.6 -0.7 0.0 14 510 14 10 10 14 13 10 =0759+252 07 25 08 57.0 163.8 -0.6 0.0 180 533 14 10 11 14 13 10 IC485 07 25 08 58.6 164.3 -0.6 0.0 -16 533 No stop 14 20 10 --- 07 32 09 58.8 167.3 -0.5 0.0 404 587 14 13 11 14 20 40 J0802+2509 07 32 39 57.2 166.9 -0.5 0.0 14 587 14 20 40 14 23 40 =0759+252 07 35 40 57.3 168.2 -0.5 0.0 180 611 14 20 41 14 23 40 IC485 07 35 40 58.9 168.8 -0.4 0.0 -16 611 No stop 14 30 40 --- 07 42 41 59.1 171.8 -0.3 0.0 404 665 14 23 41 14 31 10 J0802+2509 07 43 11 57.5 171.3 -0.3 0.0 14 665 14 31 10 14 34 10 =0759+252 07 46 11 57.6 172.6 -0.3 0.0 180 688 14 31 11 14 34 10 IC485 07 46 11 59.1 173.4 -0.3 0.0 -16 688 No stop 14 41 10 --- 07 53 12 59.2 176.4 -0.1 0.0 404 742 14 34 11 14 41 40 J0802+2509 07 53 43 57.7 175.7 -0.2 0.0 14 742 14 41 40 14 44 40 =0759+252 07 56 43 57.7 177.0 -0.1 0.0 180 765 14 41 41 14 44 40 IC485 07 56 43 59.2 177.9 -0.1 0.0 -16 765 No stop 14 51 40 --- 08 03 44 59.3 181.0 0.0 0.0 404 819 14 44 41 14 52 10 J0802+2509 08 04 14 57.7 180.2 0.0 0.0 14 819 14 52 10 14 55 10 =0759+252 08 07 15 57.7 181.5 0.1 0.0 180 842 14 52 11 14 56 40 J0854+2006 08 08 45 51.7 162.0 -0.8 0.0 37 842 14 56 40 15 02 40 =OJ287 08 14 46 51.9 164.3 -0.7 0.0 360 889 14 56 41 15 04 10 J0802+2509 08 16 16 57.6 185.3 0.2 0.0 36 889 15 04 10 15 07 10 =0759+252 08 19 17 57.6 186.6 0.3 0.0 180 912 15 04 11 15 07 10 IC485 08 19 17 59.1 187.8 0.3 0.0 -16 912 No stop 15 14 10 --- 08 26 18 58.9 190.8 0.4 0.0 404 966 15 07 11 15 14 40 J0802+2509 08 26 48 57.4 189.7 0.4 0.0 14 966 15 14 40 15 17 40 =0759+252 08 29 48 57.4 191.0 0.4 0.0 180 989 15 14 41 15 17 40 IC485 08 29 48 58.8 192.3 0.5 0.0 -16 989 No stop 15 24 40 --- 08 36 50 58.6 195.3 0.6 0.0 404 1043 15 17 41 15 25 10 J0802+2509 08 37 20 57.2 194.1 0.6 0.0 14 1043 15 25 10 15 28 10 =0759+252 08 40 20 57.0 195.3 0.6 0.0 180 1067 15 25 11 Schedule for ONSALA85 (Code O8 ) 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 ---------------------------------------------------------------------------------------- --- Mon 28 May 2018 Day 148 --- 15 28 10 IC485 08 40 20 58.5 196.8 0.6 0.0 -16 1067 No stop 15 35 10 --- 08 47 21 58.2 199.7 0.8 0.0 404 1121 15 28 11 15 35 40 J0802+2509 08 47 51 56.8 198.4 0.7 0.0 14 1121 15 35 40 15 38 40 =0759+252 08 50 52 56.6 199.6 0.8 0.0 180 1144 15 35 41 15 38 40 IC485 08 50 52 58.0 201.2 0.8 0.0 -16 1144 No stop 15 45 40 --- 08 57 53 57.7 204.1 0.9 0.0 404 1198 15 38 41 15 46 10 J0802+2509 08 58 23 56.3 202.6 0.9 0.0 14 1198 15 46 10 15 49 10 =0759+252 09 01 24 56.1 203.8 1.0 0.0 180 1221 15 46 11 15 49 10 IC485 09 01 24 57.5 205.5 1.0 0.0 -16 1221 No stop 15 56 10 --- 09 08 25 57.0 208.3 1.1 0.0 404 1275 15 49 11 15 56 40 J0802+2509 09 08 55 55.7 206.8 1.1 0.0 14 1275 15 56 40 15 59 40 =0759+252 09 11 55 55.5 207.9 1.1 0.0 180 1298 15 56 41 15 59 40 IC485 09 11 55 56.8 209.6 1.2 0.0 -16 1298 No stop 16 06 40 --- 09 18 57 56.3 212.3 1.3 0.0 404 1353 15 59 41 16 07 10 J0802+2509 09 19 27 55.0 210.8 1.3 0.0 14 1353 16 07 10 16 10 10 =0759+252 09 22 27 54.8 211.9 1.3 0.0 180 1376 16 07 11 16 10 10 IC485 09 22 27 56.1 213.7 1.4 0.0 -16 1376 No stop 16 17 10 --- 09 29 28 55.5 216.3 1.5 0.0 404 1430 16 10 11 16 17 40 J0802+2509 09 29 58 54.2 214.7 1.4 0.0 14 1430 16 17 40 16 20 40 =0759+252 09 32 59 54.0 215.8 1.5 0.0 180 1453 16 17 41 16 20 40 IC485 09 32 59 55.2 217.6 1.5 0.0 -16 1453 No stop 16 27 40 --- 09 40 00 54.6 220.1 1.6 0.0 404 1507 16 20 41 16 28 10 J0802+2509 09 40 30 53.4 218.4 1.6 0.0 14 1507 16 28 10 16 31 10 =0759+252 09 43 31 53.1 219.5 1.7 0.0 180 1530 16 28 11 16 31 10 IC485 09 43 31 54.3 221.3 1.7 0.0 -16 1530 No stop 16 38 10 --- 09 50 32 53.7 223.8 1.8 0.0 404 1584 16 31 11 16 38 40 J0802+2509 09 51 02 52.5 222.1 1.8 0.0 14 1584 16 38 40 16 41 40 =0759+252 09 54 02 52.2 223.1 1.8 0.0 180 1608 16 38 41 16 41 40 IC485 09 54 02 53.4 225.0 1.9 0.0 -16 1608 No stop 16 48 40 --- 10 01 03 52.7 227.3 2.0 0.0 404 1662 16 41 41 Schedule for ONSALA85 (Code O8 ) Page 5 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 ---------------------------------------------------------------------------------------- --- Mon 28 May 2018 Day 148 --- 16 49 10 J0802+2509 10 01 34 51.5 225.6 2.0 0.0 14 1662 16 49 10 16 52 20 =0759+252 10 04 44 51.2 226.7 2.0 0.0 190 1686 16 49 11 16 54 00 J0854+2006 10 06 24 50.5 206.6 1.2 0.0 47 1686 16 54 00 17 00 00 =OJ287 10 12 25 50.1 208.7 1.3 0.0 360 1733 16 54 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess218.L1024 --- 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: 7 Station: ONSALA85 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= 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 1220.00 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: 5 Setup file default. Used with PCAL = off LO sum= 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 BBC fr= 390.49 390.49 390.49 390.49 422.49 422.49 422.49 422.49 454.49 454.49 454.49 454.49 486.49 486.49 486.49 486.49 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: 5 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 24.945210 0.00 26 50 21.55620 * 26 42 05.10000 26 39 01.22147 0.00 From catalog imbedded in main SCHED input file. 0759+252 07 59 40.673049 * 08 02 41.587429 08 03 46.043757 0.25 * J0802+2509 25 17 36.37276 * 25 09 10.89814 25 06 03.46776 0.34 /opt/sched/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 119 observations. OJ287 08 51 57.250615 * 08 54 48.874926 08 55 50.264191 0.00 * J0854+2006 20 17 58.41743 * 20 06 30.64088 20 02 17.98039 0.00 0851+202 /opt/sched/catalogs/sources.gsfc J0854+20 GSFC 2015a astro solution, unpublished 216540 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.L1024 1 2 3 4 5 6 7 8 11 2.333 116.031 J0802+2509 sess218.L1024 1 2 3 4 5 6 7 8 11 1.103 57.623 J0854+2006 sess218.L1024 1 2 3 4 5 6 7 8 11 0.300 15.500 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 50.0 J0802+2509 50.8 J0854+2006 63.5 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