COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: BN019b - phase ref obs of NGC5377 Exp. Code: bn019b Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: Neil Nagar Address: Kapteyn Institute Landleven 12 9747 AD Groningen The Netherlands Phone: +31 (0)50 363 4095 EMAIL: neil@astro.rug.nl Fax: +31 (0)50 363 6100 Phone during observation: +31 (0)50 363 4095 Observing mode: continuum Notes: Coordinates VLA A-array Fringe finder: 3C345 = J1642+3948 Phase-referencing : phase reference J1332+4722 Schedule for VLBA_LA (Code La ) Page 2 BN019b - phase ref obs of NGC5377 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- Next scan frequencies: 4971.49 4979.49 4987.49 4995.49 Next BBC frequencies: 871.49 879.49 887.49 895.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 09 46 09 J1332+4722 13 07 30 77.5 20.3 -0.4 -155.5 0 1 1 0 09 46 09 09 48 09 =1330+476 13 09 30 77.6 18.9 -0.4 -157.2 120 F 1 798 09 48 09 NGC5377 13 09 30 75.6 33.8 -0.8 -138.4 -16 1 1 798 09 48 09 09 51 08 --- 13 12 30 75.9 32.2 -0.7 -140.5 164 F 1 1995 09 51 08 J1332+4722 13 12 30 77.8 16.6 -0.3 -160.0 -16 1 1 1995 09 51 08 09 52 08 =1330+476 13 13 30 77.9 15.9 -0.3 -160.9 43 F 1 2393 09 52 08 NGC5377 13 13 30 76.0 31.7 -0.7 -141.2 -17 1 1 2393 09 52 08 09 55 08 --- 13 16 30 76.4 30.0 -0.7 -143.4 163 F 1 3590 09 55 08 J1332+4722 13 16 30 78.0 13.6 -0.3 -163.7 -17 1 1 3590 09 55 08 09 56 07 =1330+476 13 17 30 78.1 12.8 -0.3 -164.7 43 F 1 3989 09 56 07 NGC5377 13 17 30 76.5 29.4 -0.6 -144.1 -17 1 1 3989 09 56 07 09 59 07 --- 13 20 30 76.7 27.6 -0.6 -146.4 162 F 1 5186 09 59 07 J1332+4722 13 20 30 78.2 10.4 -0.2 -167.6 -17 1 1 5186 09 59 07 10 00 07 =1330+476 13 21 30 78.2 9.6 -0.2 -168.5 42 F 1 5585 10 00 07 NGC5377 13 21 30 76.8 27.0 -0.6 -147.2 -18 1 1 5585 10 00 07 10 03 06 --- 13 24 30 77.1 25.0 -0.5 -149.6 162 F 1 6781 10 03 06 J1332+4722 13 24 30 78.3 7.1 -0.1 -171.5 -18 1 1 6781 10 03 06 10 04 06 =1330+476 13 25 30 78.3 6.3 -0.1 -172.5 42 F 1 7180 10 04 06 NGC5377 13 25 30 77.2 24.4 -0.5 -150.5 -18 1 1 7180 10 04 06 10 07 06 --- 13 28 30 77.4 22.3 -0.5 -153.0 161 F 1 8377 10 07 06 J1332+4722 13 28 30 78.4 3.8 -0.1 -175.5 -18 1 1 8377 10 07 06 10 08 05 =1330+476 13 29 30 78.4 2.9 -0.1 -176.5 41 F 1 8776 10 08 05 NGC5377 13 29 30 77.5 21.6 -0.4 -153.9 -18 1 1 8776 10 08 05 10 11 05 --- 13 32 30 77.7 19.5 -0.4 -156.5 161 F 1 9973 10 11 05 J1332+4722 13 32 30 78.4 0.4 0.0 -179.5 -19 1 1 9973 10 11 05 10 12 05 =1330+476 13 33 30 78.4 -0.5 0.0 179.4 41 F 1 10372 Schedule for VLBA_LA (Code La ) Page 3 BN019b - phase ref obs of NGC5377 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Fri 27 Feb 2004 Day 58 --- 10 12 05 J1642+3948 13 33 30 52.8 69.2 -3.2 -80.7 -57 1 1 10372 10 12 05 10 18 04 =1641+399 13 39 30 53.9 69.5 -3.1 -81.4 302 F 1 12765 10 20 04 J1332+4722 13 41 31 78.3 -7.2 0.1 171.4 64 1 1 12765 10 20 04 10 21 04 =1330+476 13 42 31 78.3 -8.0 0.2 170.4 60 F 1 13164 10 21 04 NGC5377 13 42 31 78.3 11.7 -0.2 -165.9 -19 1 1 13164 10 21 04 10 24 04 --- 13 45 31 78.4 9.3 -0.2 -168.9 160 F 1 14361 10 24 04 J1332+4722 13 45 31 78.2 -10.5 0.2 167.5 -19 1 1 14361 10 24 04 10 25 04 =1330+476 13 46 31 78.2 -11.3 0.2 166.5 41 F 1 14760 10 25 04 NGC5377 13 46 31 78.4 8.4 -0.2 -169.9 -19 1 1 14760 10 25 04 10 28 03 --- 13 49 31 78.5 5.9 -0.1 -172.9 160 F 1 15956 10 28 03 J1332+4722 13 49 31 78.0 -13.6 0.3 163.6 -19 1 1 15956 10 28 03 10 29 03 =1330+476 13 50 31 78.0 -14.4 0.3 162.7 41 F 1 16355 10 29 03 NGC5377 13 50 31 78.5 5.1 -0.1 -173.9 -19 1 1 16355 10 29 03 10 32 02 --- 13 53 31 78.6 2.5 0.0 -177.0 161 F 1 17552 10 32 02 J1332+4722 13 53 31 77.8 -16.7 0.3 159.9 -19 1 2 17552 10 32 02 10 33 02 =1330+476 13 54 31 77.8 -17.5 0.4 158.9 41 R 1 17153 10 33 02 NGC5377 13 54 31 78.6 1.7 0.0 -178.0 -19 1 2 17153 10 33 02 10 36 02 --- 13 57 31 78.6 -0.9 0.0 178.9 161 R 1 15956 10 36 02 J1332+4722 13 57 31 77.6 -19.7 0.4 156.2 -19 1 2 15956 10 36 02 10 37 02 =1330+476 13 58 31 77.5 -20.4 0.4 155.4 41 R 1 15557 10 37 02 NGC5377 13 58 31 78.6 -1.8 0.0 177.9 -18 1 2 15557 10 37 02 10 40 01 --- 14 01 31 78.5 -4.3 0.1 174.8 161 R 1 14361 10 40 01 J1332+4722 14 01 31 77.3 -22.5 0.5 152.8 -18 1 2 14361 10 40 01 10 41 01 =1330+476 14 02 31 77.2 -23.1 0.5 151.9 42 R 1 13962 10 41 01 NGC5377 14 02 31 78.5 -5.2 0.1 173.8 -18 1 2 13962 10 41 01 10 44 00 --- 14 05 31 78.4 -7.7 0.2 170.8 162 R 1 12765 10 44 00 J1332+4722 14 05 31 76.9 -25.1 0.5 149.4 -18 1 2 12765 10 44 00 10 45 00 =1330+476 14 06 31 76.9 -25.8 0.6 148.6 42 R 1 12366 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v6cm-128-4-2-L.set Matches group v6cm_2 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 4100.00 4100.00 4100.00 4100.00 Net SB= U U U U Pol. = LCP LCP LCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = C C C C VLBA FE= 6cm omit 6cm omit VLBA Synth= 15.4 4.1 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 4971.49 4979.49 4987.49 4995.49 BBC fr= 871.49 879.49 887.49 895.49 Bandwd= 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- BN019b - phase ref obs of NGC5377 Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Source Source position (RA/Dec) (B1950) (J2000) (Date) * NGC5377 13 54 18.032455 * 13 56 16.834000 13 56 27.731447 47 28 43.99492 * 47 14 06.27000 47 12 37.43624 From catalog imbedded in main SCHED input file. * J1332+4722 13 30 39.878256 * 13 32 45.246441 13 32 56.834381 1330+476 47 37 45.36415 * 47 22 22.66760 47 20 51.81350 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J1642+3948 16 41 17.606214 * 16 42 58.809952 16 43 06.749903 1641+399 39 54 10.81489 * 39 48 36.99395 39 47 46.35633 3C345 /home/filehost/cwalker/sched/catalogs/sources.vlba J1642+39 ICRF - Ext.1 Source - 1998 IERS Annual Report 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) NGC5377 123.1 J1332+4722 126.6 J1642+3948 94.7 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