COVER INFORMATION Station: JODRELL2 (Code Jb ) Experiment: GPS Satellite Observations: Frequency Setup Tests Exp. Code: EA057A Schedule Version: 3.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: James M. Anderson Address: Deutsches GeoForschungsZentrum GFZ Telegrafenberg 14473 Potsdam Germany Phone: +49 331/288-28948 EMAIL: anderson@gfz-potsdam.de Fax: +49 331/288-1111 Phone during observation: +49 1737838125 Observing mode: Fringe-finder scans on strong sources to test frequency se Notes: v3: Wb back to 16MHz subbands (no time to change firmware) Schedule for JODRELL2 (Code Jb ) Page 2 GPS Satellite Observations: Frequency Setup Tests 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 16 Oct 2015 Day 289 --- Next scan frequencies: 1567.60 1567.60 1599.60 1599.60 1631.60 1631.60 1663.60 1663.60 Next BBC frequencies: 117.60 117.60 149.60 149.60 181.60 181.60 213.60 213.60 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 06 30 00 J0555+3948 07 58 38 65.4 249.3 2.0 46.8 0 0 06 30 00 06 39 50 =0552+398 08 08 30 64.0 252.3 2.2 47.9 590 38 06 30 01 06 40 00 J0555+3948 08 08 40 64.0 252.4 2.2 48.0 6 38 06 40 00 06 44 00 =0552+398 08 12 41 63.4 253.6 2.3 48.4 240 53 06 40 01 Next scan frequencies: 1379.60 1379.60 1411.60 1411.60 Next BBC frequencies: 179.60 179.60 211.60 211.60 Next scan bandwidths: 16.00 16.00 16.00 16.00 06 44 50 J0555+3948 08 13 31 63.3 253.8 2.3 48.4 45 53 06 44 50 06 47 50 =0552+398 08 16 31 62.8 254.6 2.3 48.7 180 59 06 45 15 Next scan frequencies: 1219.60 1219.60 1251.60 1251.60 Next BBC frequencies: 19.60 19.60 51.60 51.60 06 48 40 J0555+3948 08 17 21 62.7 254.9 2.3 48.8 45 59 06 48 40 06 50 40 =0552+398 08 19 22 62.4 255.4 2.4 48.9 120 63 06 48 41 Next scan frequencies: 1219.60 1219.60 1251.60 1251.60 1283.60 1283.60 1283.60 1283.60 Next BBC frequencies: 19.60 19.60 51.60 51.60 83.60 83.60 83.60 83.60 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 06 51 30 J0555+3948 08 20 12 62.3 255.6 2.4 49.0 45 63 06 51 30 06 55 30 =0552+398 08 24 12 61.7 256.7 2.5 49.3 240 78 06 51 55 Next scan frequencies: 1219.60 1219.60 1251.60 1251.60 1567.60 1567.60 1599.60 1599.60 Next BBC frequencies: 19.60 19.60 51.60 51.60 367.60 367.60 399.60 399.60 06 56 20 J0555+3948 08 25 03 61.6 256.9 2.5 49.4 45 78 06 56 20 06 58 20 =0552+398 08 27 03 61.3 257.5 2.5 49.5 120 86 06 56 45 Next scan frequencies: 1567.60 1567.60 1599.60 1599.60 1631.60 1631.60 1663.60 1663.60 Next BBC frequencies: 117.60 117.60 149.60 149.60 181.60 181.60 213.60 213.60 07 04 20 J0854+2006 08 33 04 56.5 170.3 -0.4 -6.1 74 86 07 04 20 07 08 20 =OJ287 08 37 05 56.6 172.0 -0.3 -5.1 240 101 07 04 21 Next scan frequencies: 1379.60 1379.60 1411.60 1411.60 Next BBC frequencies: 179.60 179.60 211.60 211.60 Next scan bandwidths: 16.00 16.00 16.00 16.00 07 09 10 J0854+2006 08 37 55 56.6 172.4 -0.3 -4.8 44 101 07 09 10 07 12 10 =OJ287 08 40 55 56.7 173.7 -0.2 -4.0 180 107 07 09 35 Schedule for JODRELL2 (Code Jb ) Page 3 GPS Satellite Observations: Frequency Setup Tests 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 16 Oct 2015 Day 289 --- Next scan frequencies: 1219.60 1219.60 1251.60 1251.60 Next BBC frequencies: 19.60 19.60 51.60 51.60 07 13 00 J0854+2006 08 41 45 56.7 174.0 -0.2 -3.8 44 107 07 13 00 07 15 00 =OJ287 08 43 46 56.7 174.9 -0.2 -3.3 120 111 07 13 01 Next scan frequencies: 1219.60 1219.60 1251.60 1251.60 1283.60 1283.60 1283.60 1283.60 Next BBC frequencies: 19.60 19.60 51.60 51.60 83.60 83.60 83.60 83.60 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 07 15 50 J0854+2006 08 44 36 56.7 175.2 -0.2 -3.0 44 111 07 15 50 07 19 50 =OJ287 08 48 36 56.8 177.0 -0.1 -1.9 240 126 07 16 15 Next scan frequencies: 1219.60 1219.60 1251.60 1251.60 1567.60 1567.60 1599.60 1599.60 Next BBC frequencies: 19.60 19.60 51.60 51.60 367.60 367.60 399.60 399.60 07 20 40 J0854+2006 08 49 27 56.8 177.3 -0.1 -1.7 44 126 07 20 40 07 22 40 =OJ287 08 51 27 56.8 178.2 -0.1 -1.2 120 134 07 21 05 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess315.L1_1024 --- 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: 9 Station: JODRELL2 Total bit rate: 512 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1450.00 1450.00 1450.00 1450.00 1450.00 1450.00 1450.00 1450.00 Net SB= U U U U U U U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 5 2 6 3 7 4 8 BBC SB= U U U U U U U U IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 1 Setup file default. Used with PCAL = off LO sum= 1567.60 1567.60 1599.60 1599.60 1631.60 1631.60 1663.60 1663.60 BBC fr= 117.60 117.60 149.60 149.60 181.60 181.60 213.60 213.60 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 1 Track assignments are: track1= 2, 10, 4, 12, 6, 14, 8, 16 barrel=roll_off ======== Setup file: sess315.L3_512 --- 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: 18 Station: JODRELL2 Total bit rate: 256 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1200.00 1200.00 1200.00 1200.00 Net SB= U U U U IF SB = U U U U Pol. = RCP LCP RCP LCP BBC = 1 5 2 6 BBC SB= U U U U IF = A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 10 Setup file default. Used with PCAL = off LO sum= 1379.60 1379.60 1411.60 1411.60 BBC fr= 179.60 179.60 211.60 211.60 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 10 Track assignments are: track1= 2, 6, 4, 8 barrel=roll_off ======== Setup file: sess315.L2_512 --- 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: 30 Station: JODRELL2 Total bit rate: 256 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1200.00 1200.00 1200.00 1200.00 Net SB= U U U U IF SB = U U U U Pol. = RCP LCP RCP LCP BBC = 1 5 2 6 BBC SB= U U U U IF = A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 19 Setup file default. Used with PCAL = off LO sum= 1219.60 1219.60 1251.60 1251.60 BBC fr= 19.60 19.60 51.60 51.60 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 19 Track assignments are: track1= 2, 6, 4, 8 barrel=roll_off ======== Setup file: sess315.L2_1024 --- 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: 24 Station: JODRELL2 Total bit rate: 512 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1200.00 1200.00 1200.00 1200.00 1200.00 1200.00 1200.00 1200.00 Net SB= U U U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 5 2 6 3 7 4 8 BBC SB= U U U U L L U U IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 25 Setup file default. Used with PCAL = off LO sum= 1219.60 1219.60 1251.60 1251.60 1283.60 1283.60 1283.60 1283.60 BBC fr= 19.60 19.60 51.60 51.60 83.60 83.60 83.60 83.60 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 25 Track assignments are: track1= 2, 8, 4, 10, 14, 16, 6, 12 barrel=roll_off ======== Setup file: sess315.L1L2_1024 --- 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: 39 Station: JODRELL2 Total bit rate: 512 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1200.00 1200.00 1200.00 1200.00 1200.00 1200.00 1200.00 1200.00 Net SB= U U U U U U U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 5 2 6 3 7 4 8 BBC SB= U U U U U U U U IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 31 Setup file default. Used with PCAL = off LO sum= 1219.60 1219.60 1251.60 1251.60 1567.60 1567.60 1599.60 1599.60 BBC fr= 19.60 19.60 51.60 51.60 367.60 367.60 399.60 399.60 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 31 Track assignments are: track1= 2, 10, 4, 12, 6, 14, 8, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) 0552+398 05 52 01.407169 * 05 55 30.805611 05 56 37.556849 0.00 * J0555+3948 39 48 21.94581 * 39 48 49.16496 39 48 40.42246 0.00 DA193 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc J0555+39 GSFC 2015a astro solution, unpublished 394383 observations. OJ287 08 51 57.250615 * 08 54 48.874926 08 55 42.304807 0.00 * J0854+2006 20 17 58.41743 * 20 06 30.64088 20 02 46.35895 0.00 0851+202 /home/guest/rmc/SCHED/sched11.4/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 J0555+3948 sess315.L1_1024 1 2 3 4 5 6 7 9 0.231 8.298 sess315.L3_512 10 11 12 13 14 15 16 18 0.050 1.800 sess315.L2_1024 25 26 27 28 29 30 0.067 1.000 sess315.L2_512 19 20 21 22 23 24 0.033 0.500 sess315.L1L2_1024 31 32 33 34 35 36 37 39 0.033 1.200 J0854+2006 sess315.L1_1024 1 2 3 4 5 6 7 9 0.067 2.370 sess315.L3_512 10 11 12 13 14 15 16 18 0.050 1.800 sess315.L2_1024 25 26 27 28 29 30 0.067 1.000 sess315.L2_512 19 20 21 22 23 24 0.033 0.500 sess315.L1L2_1024 31 32 33 34 35 36 37 39 0.033 1.200 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) J0555+3948 112.3 J0854+2006 71.9 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