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observing:vlbi_satellite_observations_2021 [2021/04/21 02:34] Lucia McCallum |
observing:vlbi_satellite_observations_2021 [2021/04/26 06:53] (current) David Schunck Update on the first planned observation on 23/04/2021 by David |
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====== redo observations ====== | ====== redo observations ====== | ||
- | First aim is to replicate the observations as done in the JoG paper 2017. | + | First aim is to replicate the observations as done in the JoG paper 2017. |
* Mas will care a bit about the telescopes and will work towards Cd getting back up again. | * Mas will care a bit about the telescopes and will work towards Cd getting back up again. | ||
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* investigate signal stability, strength etc. | * investigate signal stability, strength etc. | ||
* Then eventually investigate continuous tracking, how this could be realised for Ho. Two options: 1. sattrack (manually paralle to the FS) 2. Lucas' new program (?) | * Then eventually investigate continuous tracking, how this could be realised for Ho. Two options: 1. sattrack (manually paralle to the FS) 2. Lucas' new program (?) | ||
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+ | ===== State 26/04/2021 ===== | ||
+ | First try of scheduling and performing observations from Hobart26 as one-station experiment: (by David Schunck) | ||
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+ | * I rebuild a VEX file based on the observations from 2016 ([[wg7:gnss_vlbi:2016:g336:g336|g336]]) | ||
+ | * VieVS is only using the function "degree2dms" from the Mapping Toolbox to reform //declination// angles for the VEX file. This function was reimplemented as the toolbox was not available. Also, "degree2hms" was implemented for the //right ascension// angle. | ||
+ | * The VEX file needed to be adjusted significantely in order to run it. Guifre was a big help and Jamie, after some fiddeling around, was finally able to run it. | ||
+ | * The first observation was scheduled on 23/04/2021. Unfortunately, I made a mistake when using the results of my reimplemented matlab function to write it in the VEX file. A "-" was missing for the negative declination angles which ran the telescope into its limits. | ||
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