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wg7:gnss_vlbi:2016:g336:g336 [2016/11/30 06:51] Andreas Hellerschmied created |
wg7:gnss_vlbi:2016:g336:g336 [2016/12/01 06:51] Andreas Hellerschmied [Observation] |
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* Antennas: Ho, Wa, Cd | * Antennas: Ho, Wa, Cd | ||
* Source 1921-283 observed (transits = highest elev. at stations) for polarization calibration. | * Source 1921-283 observed (transits = highest elev. at stations) for polarization calibration. | ||
+ | * Ho and Cd: AGC loop was frozen after calibration time of 10 sec prior all GPS scans (constant gain during GPS tracks) | ||
+ | * Ho: Parallel recording with Mk4 system and DBBC; Cd: DBBC | ||
<file> | <file> | ||
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* GPS scans manually scheduled | * GPS scans manually scheduled | ||
* 4 GPS sat. (PRN: 6, 19, 24, 2) | * 4 GPS sat. (PRN: 6, 19, 24, 2) | ||
- | * 3 to 4 scans per sat., | + | * 3 to 4 scans per sat. |
* evenly distributed over track | * evenly distributed over track | ||
* scans at different elevations | * scans at different elevations | ||
* 297 sec scans, if possible (~ 5 min) | * 297 sec scans, if possible (~ 5 min) | ||
- | * = multiple of repos. int. | + | * 297 se = multiple of repos. int. |
* Stepwise tracking with 9 sec repos. int. | * Stepwise tracking with 9 sec repos. int. | ||
+ | * This time 9 sec instead of 10 sec to see, if this 9 sec period propagates into the derived delays, etc. | ||
+ | * Continuous recording during GPS tracks | ||
* Schedule summary: {{:wg7:gnss_vlbi:2016:g336:g336_sum.txt|}} | * Schedule summary: {{:wg7:gnss_vlbi:2016:g336:g336_sum.txt|}} | ||
+ | * Sky plots: {{:wg7:gnss_vlbi:2016:g336:sky_g336_cd_0330-0640.pdf|Cd}}, {{:wg7:gnss_vlbi:2016:g336:sky_g336_ho_0330-0640.pdf|Ho}}, {{:wg7:gnss_vlbi:2016:g336:sky_g336_wa_0330-0640.pdf|Wa}} | ||
+ | * Elevation/visibility plot: {{:wg7:gnss_vlbi:2016:g336:2016-12-01_033000_elev_g336.pdf|}} | ||
* 20 sec calibration time + additional 5 sec idle time defined in param.txt => time to adjust the gain prior to recording | * 20 sec calibration time + additional 5 sec idle time defined in param.txt => time to adjust the gain prior to recording | ||
+ | * VEX files (Sat. pos. updated with most recent TLE available on 2016-12-01): {{:wg7:gnss_vlbi:2016:g336:g336cd.vex.txt|}} {{:wg7:gnss_vlbi:2016:g336:g336ho.vex.txt|}} {{:wg7:gnss_vlbi:2016:g336:g336wa.vex.txt|}} | ||
===== Observation ===== | ===== Observation ===== | ||
- | * **Observers**: | + | * **Observers**: Tim Natusch (Wa); Jamie McCallum (Cd, Ho) |
* **Comments**: | * **Comments**: | ||