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wg7:gnss_vlbi:2016:328a:328a
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wg7:gnss_vlbi:2016:328a:328a [2016/11/30 07:03] Andreas Hellerschmied created |
wg7:gnss_vlbi:2016:328a:328a [2016/11/30 07:13] (current) Andreas Hellerschmied [328a] |
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| ====== 328a ====== | ====== 328a ====== | ||
| - | GPS tracking experiment with WARK30M. | + | GPS tracking test with WARK30M. |
| * Antennas: Wa | * Antennas: Wa | ||
| Line 33: | Line 33: | ||
| * Sky plot: {{:wg7:gnss_vlbi:2016:328a:sky_328a_ww_2200-2239.pdf|Wa}} | * Sky plot: {{:wg7:gnss_vlbi:2016:328a:sky_328a_ww_2200-2239.pdf|Wa}} | ||
| * Elevation/visibility plot: {{:wg7:gnss_vlbi:2016:328a:2016-11-23_220000_elev.pdf|}} | * Elevation/visibility plot: {{:wg7:gnss_vlbi:2016:328a:2016-11-23_220000_elev.pdf|}} | ||
| + | * VEX file: {{:wg7:gnss_vlbi:2016:328a:328awa.vex.txt|}} | ||
| ===== Observation ===== | ===== Observation ===== | ||
| * **Observers**: Tim Natusch | * **Observers**: Tim Natusch | ||
| * **Comments**: | * **Comments**: | ||
| - | * | + | * Circular pol. at Wa |
| + | * From Tim: | ||
| + | * Schedule ran successfully | ||
| + | * Spread sheet of the results of monitoring signal power during the observation: {{:wg7:gnss_vlbi:2016:328a:328awa.xlsx|}}. Some things are obvious: | ||
| + | * We clearly saw all 5 satellites, although with significant variability in signal strength. | ||
| + | * We can clearly see the effects of the step tracking approach. | ||
| + | * I also monitored the DBBC IF attenuation during the run and at first glance it appears that the AGC loop had sufficient head room to maintain control (for my record keeping this was with 12 dB additional attenuation at the DBBC inputs). | ||
| + | * The slewing gap between recording seemed to be correct, I observed the antenna reach tracking position on all slews just before "record on" was commanded. | ||
| + | * Screen shot of the spectrum during tracking of the 2nd satellite "39166": {{:wg7:gnss_vlbi:2016:328a:328awa-39166.jpg?200|}} | ||
| Line 43: | Line 53: | ||
| * Stepwise tracking | * Stepwise tracking | ||
| * 9 sec repos. int. | * 9 sec repos. int. | ||
| - | * VEX files with tracking points in topo. RaDec | + | * VEX files with tracking points in topo. RaDec (calculated with TLE data) |
/home/www/auscope/opswiki/data/attic/wg7/gnss_vlbi/2016/328a/328a.1480489381.txt.gz · Last modified: 2016/11/30 07:03 by Andreas Hellerschmied
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