COVER INFORMATION Station: JODRELL2 (Code Jb ) Experiment: 6.7GHz CH3OH maser polarization towards massive protostars. II. Exp. Code: ES072M Schedule Version: 1.00 Processed by SCHED version: 11.00 Release of Feb. 15, 2013 PI: G. Surcis Address: Joint Institute for VLBI in Europe Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31 (0)521-596508 EMAIL: surcis@jive.nl Fax: +31 (0)521-596539 Phone during observation: +31 (0)521-596508 Observing mode: Polarization observations of 1 sources at 6.7 GHz (32 Mb/s Notes: phase-cal OFF source = G30.76-0.05 Schedule for JODRELL2 (Code Jb ) Page 2 6.7GHz CH3OH maser polarization towards massive protostars. II. 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 17 Oct 2014 Day 290 --- Next scan frequencies: 6665.24 6665.24 6665.24 6665.24 Next BBC frequencies: 145.24 145.24 145.24 145.24 Next scan bandwidths: 2.00 2.00 2.00 2.00 13 15 00 J2202+4216 14 49 39 23.6 49.9 -7.2 -38.3 0 0 13 15 00 13 25 00 =BLLAC 14 59 40 24.7 51.5 -7.1 -39.3 600 2 13 15 04 13 28 50 G30.76-0.05 15 03 31 17.8 119.2 -3.7 -31.5 4 2 13 28 50 13 38 50 --- 15 13 33 19.1 121.5 -3.6 -30.7 600 5 13 28 54 13 39 20 G30.76-0.05 15 14 03 19.1 121.6 -3.6 -30.7 26 5 13 39 20 13 49 20 --- 15 24 04 20.4 123.9 -3.4 -29.8 600 7 13 39 24 13 49 50 G30.76-0.05 15 24 34 20.5 124.0 -3.4 -29.8 26 7 13 49 50 13 59 50 --- 15 34 36 21.7 126.4 -3.2 -28.8 600 10 13 49 54 14 00 20 G30.76-0.05 15 35 06 21.8 126.5 -3.2 -28.8 26 10 14 00 20 14 10 20 --- 15 45 08 22.9 128.9 -3.1 -27.8 600 12 14 00 24 14 14 20 J2202+4216 15 49 08 30.8 59.2 -6.2 -44.1 8 12 14 14 20 14 24 20 =BLLAC 15 59 10 32.1 60.7 -6.1 -45.0 600 14 14 14 24 14 34 10 J1331+3030 16 09 02 53.6 247.1 2.6 39.7 8 14 14 34 10 14 44 00 =3C286 16 18 53 52.2 249.7 2.8 40.6 590 17 14 34 14 14 44 30 J1331+3030 16 19 23 52.2 249.9 2.8 40.7 25 17 14 44 30 14 54 30 =3C286 16 29 25 50.8 252.5 3.0 41.5 600 19 14 44 34 15 00 30 G30.76-0.05 16 35 26 28.2 141.5 -2.2 -21.9 4 19 15 00 30 15 10 20 --- 16 45 18 29.1 144.2 -2.1 -20.5 590 22 15 00 34 15 10 50 G30.76-0.05 16 45 48 29.2 144.3 -2.0 -20.5 25 22 15 10 50 15 20 50 --- 16 55 49 30.0 147.0 -1.9 -19.0 600 24 15 10 54 15 25 10 J2202+4216 17 00 10 40.4 70.2 -5.1 -49.6 7 24 15 25 10 15 35 10 =BLLAC 17 10 12 41.8 71.8 -4.9 -50.3 600 26 15 25 14 15 39 40 G30.76-0.05 17 14 42 31.5 152.2 -1.6 -16.2 6 26 15 39 40 15 49 40 --- 17 24 44 32.1 155.1 -1.4 -14.6 600 29 15 39 44 15 50 10 G30.76-0.05 17 25 14 32.2 155.2 -1.4 -14.5 25 29 15 50 10 16 00 10 --- 17 35 16 32.7 158.1 -1.2 -12.9 600 31 15 50 14 16 00 40 G30.76-0.05 17 35 46 32.8 158.2 -1.2 -12.8 25 31 16 00 40 16 10 40 --- 17 45 47 33.3 161.2 -1.0 -11.1 600 34 16 00 44 Schedule for JODRELL2 (Code Jb ) Page 3 6.7GHz CH3OH maser polarization towards massive protostars. II. 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 17 Oct 2014 Day 290 --- 16 11 10 G30.76-0.05 17 46 18 33.3 161.3 -1.0 -11.1 25 34 16 11 10 16 19 10 --- 17 54 19 33.7 163.7 -0.9 -9.7 480 35 16 11 14 16 23 50 J2202+4216 17 59 00 48.9 79.7 -4.1 -52.8 5 35 16 23 50 16 33 50 =BLLAC 18 09 01 50.4 81.5 -3.9 -53.2 600 38 16 23 54 16 38 40 G30.76-0.05 18 13 52 34.4 169.5 -0.6 -6.3 3 38 16 38 40 16 48 40 --- 18 23 54 34.6 172.5 -0.4 -4.5 600 40 16 38 44 16 49 10 G30.76-0.05 18 24 24 34.6 172.7 -0.4 -4.4 25 40 16 49 10 16 59 10 --- 18 34 25 34.8 175.7 -0.2 -2.6 600 43 16 49 14 16 59 40 G30.76-0.05 18 34 55 34.8 175.9 -0.2 -2.5 25 43 16 59 40 17 09 40 --- 18 44 57 34.8 178.9 -0.1 -0.6 600 45 16 59 44 17 10 10 G30.76-0.05 18 45 27 34.8 179.1 -0.0 -0.5 25 45 17 10 10 17 20 10 --- 18 55 29 34.8 182.1 0.1 1.3 600 47 17 10 14 17 25 10 J2202+4216 19 00 30 58.1 91.1 -3.0 -54.1 4 47 17 25 10 17 35 10 =BLLAC 19 10 31 59.6 93.2 -2.9 -54.0 600 50 17 25 14 17 40 20 G30.76-0.05 19 15 42 34.5 188.3 0.5 4.9 2 50 17 40 20 17 50 20 --- 19 25 44 34.3 191.3 0.6 6.7 600 52 17 40 24 17 50 50 G30.76-0.05 19 26 14 34.3 191.5 0.6 6.8 25 52 17 50 50 18 00 50 --- 19 36 16 33.9 194.5 0.8 8.6 600 55 17 50 54 18 01 20 G30.76-0.05 19 36 46 33.9 194.6 0.8 8.7 25 55 18 01 20 18 11 20 --- 19 46 47 33.5 197.6 1.0 10.4 600 57 18 01 24 18 11 50 G30.76-0.05 19 47 17 33.5 197.7 1.0 10.5 25 57 18 11 50 18 21 50 --- 19 57 19 33.0 200.7 1.1 12.2 600 59 18 11 54 18 27 00 J2202+4216 20 02 30 67.2 106.2 -2.0 -51.0 4 59 18 27 00 18 37 00 =BLLAC 20 12 31 68.6 109.4 -1.8 -49.8 600 62 18 27 04 18 40 00 J2136+0041 20 15 32 34.9 154.8 -1.4 -14.8 21 62 18 40 00 18 49 50 =2134+00 20 25 24 35.4 157.7 -1.2 -13.1 590 64 18 40 04 18 52 50 G30.76-0.05 20 28 24 31.0 209.5 1.7 17.2 2 64 18 52 50 19 02 40 --- 20 38 16 30.3 212.2 1.8 18.6 590 67 18 52 54 19 03 10 G30.76-0.05 20 38 46 30.2 212.4 1.8 18.7 25 67 19 03 10 19 12 10 --- 20 47 47 29.5 214.8 2.0 20.0 540 69 19 03 14 Schedule for JODRELL2 (Code Jb ) Page 4 6.7GHz CH3OH maser polarization towards massive protostars. II. 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 17 Oct 2014 Day 290 --- 19 12 40 G30.76-0.05 20 48 17 29.4 215.0 2.0 20.1 25 69 19 12 40 19 21 40 --- 20 57 19 28.6 217.4 2.1 21.3 540 71 19 12 44 19 26 30 J2202+4216 21 02 10 75.1 130.7 -1.0 -37.9 7 71 19 26 30 19 35 10 =BLLAC 21 10 51 76.0 135.9 -0.9 -34.3 520 73 19 26 34 19 40 00 G30.76-0.05 21 15 42 26.9 222.2 2.5 23.7 9 73 19 40 00 19 50 00 --- 21 25 43 25.8 224.7 2.6 24.9 600 75 19 40 04 19 50 30 G30.76-0.05 21 26 14 25.8 224.8 2.6 25.0 26 75 19 50 30 20 00 30 --- 21 36 15 24.7 227.3 2.8 26.1 600 78 19 50 34 20 05 00 J2202+4216 21 40 46 78.5 158.6 -0.4 -17.2 39 78 20 05 00 20 15 00 =BLLAC 21 50 48 78.9 167.8 -0.2 -9.8 600 80 20 05 04 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess314.M32 Matching groups in /aps3/sched11.0/catalogs/freq.dat: j2b5cm Values confirmed by E-mail P.Burgess (JFD 26Oct98) Setup group: 2 Station: JODRELL2 Total bit rate: 32 Format: MKIV1:1 Bits per sample: 2 Sample rate: 4.000 Number of channels: 4 DBE type: Speedup factor: 2.00 Disk used to record data. 1st LO= 6520.00 6520.00 6520.00 6520.00 Net SB= U U U U IF SB = U U U U Pol. = RCP LCP RCP LCP BBC = 2 1 4 3 BBC SB= U U U U IF = 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 2 Based on FREQ, BW, and/or DOPPLER in schedule. LO sum= 6665.24 6665.24 6665.24 6665.24 BBC fr= 145.24 145.24 145.24 145.24 Bandwd= 2.00 2.00 2.00 2.00 Matching frequency sets: 2 Track assignments are: track1= 2, 6, 10, 14 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * G30.76-0.05 18 45 03.674701 * 18 47 39.730000 18 48 25.841264 0.00 -02 00 43.37142 *-01 57 22.00000 -01 56 04.91662 0.00 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 92.00 92.00 92.00 92.00 * J1331+3030 13 28 49.657778 * 13 31 08.288070 13 31 47.738015 0.20 3C286 30 45 58.64061 * 30 30 32.95925 30 26 07.03464 0.19 1328+307 /aps3/sched11.0/catalogs/sources.vlba J1331+30 rfc_2012b Petrov, 2012, unpublished 542 observations Doppler based on other sources. * J2136+0041 21 34 05.207371 * 21 36 38.586306 21 37 24.813866 0.74 2134+00 00 28 25.08000 * 00 41 54.21282 00 46 08.91788 1.25 2134+004 /aps3/sched11.0/catalogs/sources.vlba J2136+00 GSFC 2011B astro solution 26937 Observations Doppler based on other sources. * J2202+4216 22 00 39.362504 * 22 02 43.291371 22 03 21.636287 0.14 BLLAC 42 02 08.59073 * 42 16 39.97987 42 21 20.62699 0.10 2200+420 /aps3/sched11.0/catalogs/sources.vlba J2202+42 rfc_2012b Petrov, 2012, unpublished 59418 observations VR422201 Doppler based on other sources. 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 G30.76-0.05sess314.M32 1 2 3 4 5 6 7 3.761 78.983 J1331+3030 sess314.M32 1 2 3 4 5 6 7 0.331 6.942 J2136+0041 sess314.M32 1 2 3 4 5 6 7 0.164 3.442 J2202+4216 sess314.M32 1 2 3 4 5 6 7 1.311 26.533 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) G30.76-0.05 79.5 J1331+3030 39.8 J2136+0041 121.6 J2202+4216 124.3 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