COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: No description given. Exp. Code: bc120a Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Shami Chatterjee Address: Cornell University 515 Space Sciences Ithaca NY 14853 USA Phone: 607 255 9020 EMAIL: shami@astro.cornell.edu Fax: Phone during observation: 607 255 9020 Observing mode: Notes: The optimal observation date is Jan 2. Please try to observe within 2 weeks of this date. Schedule for VLBA_MK (Code Mk ) Page 2 No description given. 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) ---------------------------------------------------------------------------------------- --- Sat 8 Feb 2003 Day 39 --- Next scan frequencies: 1409.99 1409.99 1503.99 1503.99 1589.99 1589.99 1679.99 1679.99 Next BBC frequencies: 990.01 990.01 896.01 896.01 810.01 810.01 720.01 720.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 15 29 10 J1838+0927 14 20 39 27.0 89.3 -4.3 -72.5 0 1 1 0 15 29 00 15 33 05 --- 14 24 35 27.9 89.6 -4.2 -72.5 235 F 1 3271 15 33 13 B1839+09.PT 14 24 43 27.1 89.6 -4.3 -72.4 0 1 1 3271 15 33 05 15 35 13 --- 14 26 43 27.6 89.8 -4.3 -72.4 120 F 1 4968 15 35 20 J1838+0927 14 26 51 28.4 89.8 -4.2 -72.5 0 1 1 4968 15 35 13 15 36 50 --- 14 28 21 28.8 89.9 -4.2 -72.5 90 F 1 6267 15 36 58 B1839+09.PT 14 28 28 28.0 89.9 -4.2 -72.4 0 1 1 6267 15 36 50 15 38 57 --- 14 30 28 28.5 90.1 -4.2 -72.4 120 F 1 7964 15 39 05 J1838+0927 14 30 36 29.3 90.1 -4.1 -72.5 0 1 1 7964 15 38 57 15 40 35 --- 14 32 06 29.7 90.2 -4.1 -72.5 90 F 1 9263 15 40 42 B1839+09.PT 14 32 13 28.9 90.3 -4.2 -72.4 0 1 1 9263 15 40 35 15 42 42 --- 14 34 13 29.4 90.4 -4.1 -72.4 120 F 1 10960 15 42 50 J1838+0927 14 34 21 30.2 90.4 -4.1 -72.5 0 1 1 10960 15 42 42 15 44 19 --- 14 35 51 30.6 90.6 -4.1 -72.5 90 F 1 12259 15 44 27 B1839+09.PT 14 35 59 29.8 90.6 -4.1 -72.4 0 1 1 12259 15 44 19 15 46 27 --- 14 37 59 30.3 90.8 -4.1 -72.4 120 F 1 13955 15 46 34 J1838+0927 14 38 06 31.1 90.8 -4.0 -72.5 0 1 1 13955 15 46 27 15 48 04 --- 14 39 36 31.4 90.9 -4.0 -72.5 90 F 1 15255 15 48 12 B1839+09.PT 14 39 44 30.7 90.9 -4.0 -72.4 0 1 1 15255 15 48 04 15 50 11 --- 14 41 44 31.1 91.1 -4.0 -72.4 120 F 1 16951 15 50 19 J1838+0927 14 41 52 32.0 91.1 -4.0 -72.5 0 1 2 16951 15 50 11 15 51 49 --- 14 43 22 32.3 91.2 -3.9 -72.5 90 R 1 16950 15 51 56 B1839+09.PT 14 43 29 31.5 91.2 -4.0 -72.3 0 1 2 16950 15 51 49 15 53 56 --- 14 45 29 32.0 91.4 -3.9 -72.3 120 R 1 15253 Schedule for VLBA_MK (Code Mk ) Page 3 No description given. 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) ---------------------------------------------------------------------------------------- --- Sat 8 Feb 2003 Day 39 --- 15 54 04 J1838+0927 14 45 37 32.9 91.4 -3.9 -72.5 0 1 2 15253 15 53 56 15 55 33 --- 14 47 07 33.2 91.5 -3.9 -72.5 90 R 1 13954 15 55 41 B1839+09.PT 14 47 15 32.4 91.6 -3.9 -72.3 0 1 2 13954 15 55 33 15 57 41 --- 14 49 15 32.9 91.7 -3.9 -72.3 120 R 1 12257 15 57 48 J1838+0927 14 49 22 33.7 91.7 -3.8 -72.4 0 1 2 12257 15 57 41 15 59 18 --- 14 50 52 34.1 91.9 -3.8 -72.4 90 R 1 10958 15 59 26 B1839+09.PT 14 51 00 33.3 91.9 -3.9 -72.3 0 1 2 10958 15 59 18 16 01 25 --- 14 53 00 33.8 92.1 -3.8 -72.3 120 R 1 9261 16 01 33 J1838+0927 14 53 08 34.6 92.1 -3.8 -72.4 0 1 2 9261 16 01 25 16 03 03 --- 14 54 38 35.0 92.2 -3.7 -72.4 90 R 1 7962 16 03 10 B1839+09.PT 14 54 45 34.2 92.2 -3.8 -72.3 0 1 2 7962 16 03 03 16 05 10 --- 14 56 45 34.7 92.4 -3.8 -72.2 120 R 1 6266 16 05 18 J1838+0927 14 56 53 35.5 92.4 -3.7 -72.4 0 1 2 6266 16 05 10 16 06 47 --- 14 58 23 35.9 92.6 -3.7 -72.3 90 R 1 4966 16 06 55 B1839+09.PT 14 58 31 35.1 92.6 -3.7 -72.2 0 1 2 4966 16 06 47 16 08 55 --- 15 00 31 35.5 92.8 -3.7 -72.2 120 R 1 3270 16 09 02 J1838+0927 15 00 38 36.4 92.8 -3.6 -72.3 0 1 2 3270 16 08 55 16 10 32 --- 15 02 08 36.7 92.9 -3.6 -72.3 90 R 1 1970 16 10 40 B1839+09.PT 15 02 16 36.0 92.9 -3.7 -72.2 0 1 2 1970 16 10 32 16 12 39 --- 15 04 16 36.4 93.1 -3.6 -72.1 120 R 1 274 16 12 47 J1838+0927 15 04 24 37.3 93.1 -3.6 -72.3 0 1 3 274 16 12 39 16 14 17 --- 15 05 54 37.6 93.3 -3.6 -72.2 90 F 1 1573 16 14 24 B1839+09.PT 15 06 01 36.8 93.3 -3.6 -72.1 0 1 3 1573 16 14 17 16 16 24 --- 15 08 01 37.3 93.5 -3.6 -72.1 120 F 1 3270 16 16 32 J1838+0927 15 08 09 38.2 93.5 -3.5 -72.2 0 1 3 3270 16 16 24 16 18 01 --- 15 09 39 38.5 93.6 -3.5 -72.2 90 F 1 4569 16 18 09 B1839+09.PT 15 09 46 37.7 93.6 -3.5 -72.0 0 1 3 4569 16 18 01 16 20 09 --- 15 11 46 38.2 93.8 -3.5 -72.0 120 F 1 6266 Schedule for VLBA_MK (Code Mk ) Page 4 No description given. 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) ---------------------------------------------------------------------------------------- --- Sat 8 Feb 2003 Day 39 --- 16 20 16 J1838+0927 15 11 54 39.0 93.8 -3.5 -72.1 0 1 3 6266 16 20 09 16 21 46 --- 15 13 24 39.4 94.0 -3.4 -72.1 90 F 1 7565 16 21 54 B1839+09.PT 15 13 32 38.6 94.0 -3.5 -72.0 0 1 3 7565 16 21 46 16 23 53 --- 15 15 32 39.1 94.2 -3.4 -71.9 120 F 1 9261 16 24 01 J1838+0927 15 15 40 39.9 94.2 -3.4 -72.0 0 1 3 9261 16 23 53 16 25 31 --- 15 17 10 40.3 94.4 -3.4 -72.0 90 F 1 10561 16 25 38 B1839+09.PT 15 17 17 39.5 94.4 -3.4 -71.9 0 1 3 10561 16 25 31 16 27 38 --- 15 19 17 40.0 94.6 -3.4 -71.8 120 F 1 12257 16 27 46 J1838+0927 15 19 25 40.8 94.6 -3.3 -71.9 0 1 3 12257 16 27 38 16 29 16 --- 15 20 55 41.2 94.7 -3.3 -71.9 90 F 1 13556 16 29 23 B1839+09.PT 15 21 02 40.4 94.8 -3.4 -71.8 0 1 3 13556 16 29 16 16 31 23 --- 15 23 02 40.8 95.0 -3.3 -71.7 120 F 1 15253 16 31 30 J1838+0927 15 23 10 41.7 95.0 -3.3 -71.8 0 1 3 15253 16 31 23 16 33 00 --- 15 24 40 42.0 95.1 -3.2 -71.8 90 F 1 16552 16 33 08 B1839+09.PT 15 24 48 41.2 95.1 -3.3 -71.7 0 1 4 16552 16 33 00 16 35 07 --- 15 26 48 41.7 95.3 -3.3 -71.6 120 R 1 16951 16 35 15 J1838+0927 15 26 55 42.6 95.4 -3.2 -71.7 0 1 4 16951 16 35 07 16 36 45 --- 15 28 25 42.9 95.5 -3.2 -71.7 90 R 1 15652 16 36 52 B1839+09.PT 15 28 33 42.1 95.5 -3.2 -71.6 0 1 4 15652 16 36 45 16 38 52 --- 15 30 33 42.6 95.7 -3.2 -71.5 120 R 1 13955 16 39 00 J1838+0927 15 30 41 43.4 95.8 -3.1 -71.6 0 1 4 13955 16 38 52 16 40 30 --- 15 32 11 43.8 95.9 -3.1 -71.6 90 R 1 12656 16 40 37 B1839+09.PT 15 32 18 43.0 95.9 -3.2 -71.4 0 1 4 12656 16 40 30 16 42 37 --- 15 34 18 43.5 96.1 -3.1 -71.4 120 R 1 10960 16 42 45 J1838+0927 15 34 26 44.3 96.2 -3.1 -71.5 0 1 4 10960 16 42 37 16 44 14 --- 15 35 56 44.7 96.3 -3.1 -71.4 90 R 1 9660 16 44 22 B1839+09.PT 15 36 04 43.9 96.3 -3.1 -71.3 0 1 4 9660 16 44 14 16 46 22 --- 15 38 04 44.3 96.6 -3.1 -71.2 120 R 1 7964 Schedule for VLBA_MK (Code Mk ) Page 5 No description given. 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) ---------------------------------------------------------------------------------------- --- Sat 8 Feb 2003 Day 39 --- 16 46 29 J1838+0927 15 38 11 45.2 96.6 -3.0 -71.4 0 1 4 7964 16 46 22 16 47 59 --- 15 39 41 45.5 96.8 -3.0 -71.3 90 R 1 6665 16 48 07 B1839+09.PT 15 39 49 44.8 96.8 -3.0 -71.2 0 1 4 6665 16 47 59 16 50 06 --- 15 41 49 45.2 97.0 -3.0 -71.1 120 R 1 4968 16 50 14 J1838+0927 15 41 57 46.1 97.0 -3.0 -71.2 0 1 4 4968 16 50 06 16 51 44 --- 15 43 27 46.4 97.2 -2.9 -71.1 90 R 1 3669 16 51 51 B1839+09.PT 15 43 34 45.6 97.2 -3.0 -71.0 0 1 4 3669 16 51 44 16 53 51 --- 15 45 34 46.1 97.4 -2.9 -70.9 120 R 1 1972 16 53 59 J1838+0927 15 45 42 46.9 97.4 -2.9 -71.0 0 1 4 1972 16 53 51 16 55 28 --- 15 47 12 47.3 97.6 -2.9 -71.0 90 R 1 673 16 55 36 B1839+09.PT 15 47 20 46.5 97.6 -2.9 -70.9 0 1 5 673 16 55 28 16 57 36 --- 15 49 20 47.0 97.9 -2.9 -70.8 120 F 1 1024 16 57 43 J1838+0927 15 49 27 47.8 97.9 -2.8 -70.9 0 1 5 1024 16 57 36 16 59 13 --- 15 50 57 48.2 98.1 -2.8 -70.8 90 F 1 2323 16 59 21 B1839+09.PT 15 51 05 47.4 98.1 -2.9 -70.7 0 1 5 2323 16 59 13 17 01 20 --- 15 53 05 47.9 98.3 -2.8 -70.6 120 F 1 4019 17 01 28 J1838+0927 15 53 13 48.7 98.3 -2.8 -70.7 0 1 5 4019 17 01 20 17 02 58 --- 15 54 43 49.0 98.5 -2.7 -70.6 90 F 1 5319 17 03 05 B1839+09.PT 15 54 50 48.3 98.5 -2.8 -70.5 0 1 5 5319 17 02 58 17 05 05 --- 15 56 50 48.7 98.8 -2.8 -70.4 120 F 1 7015 17 05 13 J1838+0927 15 56 58 49.6 98.8 -2.7 -70.5 0 1 5 7015 17 05 05 17 06 42 --- 15 58 28 49.9 99.0 -2.7 -70.4 90 F 1 8314 17 06 50 B1839+09.PT 15 58 35 49.1 99.0 -2.7 -70.3 0 1 5 8314 17 06 42 17 08 50 --- 16 00 35 49.6 99.3 -2.7 -70.2 120 F 1 10011 17 08 57 J1838+0927 16 00 43 50.4 99.3 -2.6 -70.3 0 1 5 10011 17 08 50 17 10 27 --- 16 02 13 50.8 99.5 -2.6 -70.2 90 F 1 11310 17 10 35 B1839+09.PT 16 02 21 50.0 99.5 -2.7 -70.1 0 1 5 11310 17 10 27 17 12 34 --- 16 04 21 50.5 99.7 -2.6 -70.0 120 F 1 13007 Schedule for VLBA_MK (Code Mk ) Page 6 No description given. 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) ---------------------------------------------------------------------------------------- --- Sat 8 Feb 2003 Day 39 --- 17 12 42 J1838+0927 16 04 28 51.3 99.8 -2.6 -70.0 0 1 5 13007 17 12 34 17 14 12 --- 16 05 58 51.7 100.0 -2.6 -69.9 90 F 1 14306 17 14 19 B1839+09.PT 16 06 06 50.9 100.0 -2.6 -69.8 0 1 5 14306 17 14 12 17 16 19 --- 16 08 06 51.3 100.2 -2.6 -69.7 120 F 1 16003 17 16 27 J1838+0927 16 08 14 52.2 100.3 -2.5 -69.8 0 1 5 16003 17 16 19 17 17 56 --- 16 09 44 52.5 100.5 -2.5 -69.7 90 F 1 17302 17 18 04 B1839+09.PT 16 09 51 51.7 100.5 -2.5 -69.6 0 1 6 17302 17 17 56 17 20 04 --- 16 11 51 52.2 100.8 -2.5 -69.4 120 R 1 15605 17 20 11 J1838+0927 16 11 59 53.1 100.8 -2.5 -69.5 0 1 6 15605 17 20 04 17 21 41 --- 16 13 29 53.4 101.1 -2.4 -69.4 90 R 1 14306 17 21 49 B1839+09.PT 16 13 37 52.6 101.0 -2.5 -69.3 0 1 6 14306 17 21 41 17 23 48 --- 16 15 37 53.1 101.3 -2.4 -69.2 120 R 1 12610 17 23 56 J1838+0927 16 15 44 53.9 101.4 -2.4 -69.2 0 1 6 12610 17 23 48 17 25 26 --- 16 17 14 54.3 101.6 -2.4 -69.1 90 R 1 11310 17 25 33 B1839+09.PT 16 17 22 53.5 101.6 -2.4 -69.0 0 1 6 11310 17 25 26 17 27 33 --- 16 19 22 53.9 101.9 -2.4 -68.9 120 R 1 9614 17 27 41 J1838+0927 16 19 30 54.8 102.0 -2.3 -68.9 0 1 6 9614 17 27 33 17 29 11 --- 16 21 00 55.1 102.2 -2.3 -68.8 90 R 1 8315 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: v18cm-256-8-2-psrvlb.set Matches group v20cm_2 in /home/filehost/cwalker/sched/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 1 Station: VLBA Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 1409.99 1409.99 1503.99 1503.99 1589.99 1589.99 1679.99 1679.99 BBC fr= 990.01 990.01 896.01 896.01 810.01 810.01 720.01 720.01 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = OFF PCALXB1= S1 S2 S3 S4 S5 S6 S7 S8 PCALXB2= M1 M2 M3 M4 M5 M6 M7 M8 PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- No description given. 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) * B1839+09.PT 18 39 40.031259 * 18 42 03.194631 18 42 10.177112 09 09 17.16883 * 09 12 14.91994 09 12 13.24987 From catalog imbedded in main SCHED input file. * J1838+0927 18 36 31.999295 * 18 38 54.835700 18 39 01.810288 09 24 43.65908 * 09 27 27.89700 09 27 25.37212 From catalog imbedded in main SCHED input file. 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) B1839+09.PT 47.6 J1838+0927 48.4 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