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wg7:apod:316a_hbke
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wg7:apod:316a_hbke [2016/11/18 07:22] Andreas Hellerschmied [Observation] |
wg7:apod:316a_hbke [2018/04/18 09:35] (current) Andreas Hellerschmied [Data and files] |
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| * **Observers**: Jamie, Lucia, Andreas | * **Observers**: Jamie, Lucia, Andreas | ||
| * **Comments**: APOD track with Ke and Yg. Blocks of quasars before and after (10 min). 5 min break between quasar and sat. AzEl files are manually loaded via antenna control HMI. Quite stressy but works. Signal (carrier and DOR tones) was clearly visible in spectrum analysers, both in S-band and X-band. DOR tones also visible in autocorrelation (0.25 sec of data). Carrier might be saturating. | * **Comments**: APOD track with Ke and Yg. Blocks of quasars before and after (10 min). 5 min break between quasar and sat. AzEl files are manually loaded via antenna control HMI. Quite stressy but works. Signal (carrier and DOR tones) was clearly visible in spectrum analysers, both in S-band and X-band. DOR tones also visible in autocorrelation (0.25 sec of data). Carrier might be saturating. | ||
| + | * 5 minutes time gap between quasars and satellite required to switch the tracking modes is required | ||
| + | * late on source messages for quasar scans (set calibration time, etc., was set to 0 in param.txt ==> Use std. values for next experiments!) | ||
| + | * Jamie had to merge the two individual scans defined in the VEX files for both stations in the snp files (remove recorder=off). Apparently "datastop=30sec" in the VEX file had no effect on. ==> Next experiments: Just 1 sec time gap between individual scans! | ||
| + | * Ke: | ||
| + | * S band signal: Clearly visible (carrier + DOR tones)! | ||
| + | * quite constant amplitude. Not too much variation | ||
| + | * X band signal: Not time to check it on SA | ||
| + | * in auto correlation window: All tones visible! | ||
| + | * There seems to be a signal distortion due to saturation for the carrier | ||
| + | * Yg: | ||
| + | * S band signal: Clearly visible (carrier + DOR tones)! | ||
| + | * quite constant amplitude. Not too much variation | ||
| + | * X band signal: Clearly visible (carrier + DOR tones)! | ||
| + | * Small variations in the signal strength | ||
| + | * in auto correlation window: All tones visible! | ||
| + | * There seems to be a signal distortion due to saturation for the carrier | ||
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| - | ===== Correlation ===== | + | |
| + | ===== Data and files ===== | ||
| + | |||
| + | * All control files used for the observations (VEX schedules, schedule summaries, orbit files, AzEl tracking files, etc.) are provided on the VieVS server (''sorts@vievs.hg.tuwien.ac.at'') at ''/home/sorts/apod/2016/'' | ||
| + | * Results: | ||
| + | * Plot showing fringe fitting results (residual multiband delays, delay rates, SNR, formal errors): {{:wg7:apod:316a.07.png?200|}} | ||
| + | * VSO observation files containing the multiband total delays calculated by HOPS/fourfit (remove the .txt file name extension to load the VSO files in VieVS): {{:wg7:apod:316a.07_redclk-ion_free.vso.txt|}} {{:wg7:apod:316a.07_redclk-s.vso.txt|}} {{:wg7:apod:316a.07_redclk-x.vso.txt|}} | ||
| + | |||
| + | |||
| - | ===== Available files ===== | ||
| - | Files are available on the VieVS server (''vievs.hg.tuwien.ac.at'', user: sorts) at ''/home/sorts/apod/2016/'' | ||
| - | * Azel tracking files for all antennas (1 sec interval) | ||
| - | * VEX file (combined) | ||
| - | * VIE_SCHED files | ||
| - | * used control + catalog files, TLEs | ||
| - | * predicted WGS84 state vectors (1 sec interval, by J. Sun) | ||
| - | * predicted AzEl posititons (1 sec interval, by J. Sun) | ||
/home/www/auscope/opswiki/data/attic/wg7/apod/316a_hbke.1479453765.txt.gz · Last modified: 2016/11/18 07:22 by Andreas Hellerschmied
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