Wrong Geostationary satellites Az El computation

[f6bvp]

While Windows 2.3.37 version performs correct Az El coordinates for geostationary satellites such as METEOSAT-10 (MSG-3) and METEOSAT-11 (MSG-4) it is not the case on Linux Ubuntu 2.3.72 Gpredict version. Computation of Az El coordinates are wrong.

However after updating METEOSAT TLE after downloading TLE from http://celestrak.org/NORAD/elements/weather.txt

and updating from local filet Az El coordinates are then correctly displayed !

Conclusion : TLE updating from Internet is failing to read correctly weather.txt file.

However QO100 geostationary satellite Az El coordinates are correctly computed on Linux as well as on Windows version ! Az : 150.02° El : 29.51° as compared to Windows : Az : 150.12° El : 29.54°

73 deBernard, f6bvp

[f6bvp]

This may be also related to Celestrak URL change. If so, forget the issue report.

By the way, could you add two references for 'new' Galileo satellites into galileo.cat ?

49809 49810

73 de Bernard, f6bvp

[f6bvp]

Of course new Galileo satellite may be added by editing file ~/data/sat data/galileo.cat Completing the file with :

49809 49810

[f6bvp]

By the way is there any objection about updating .cat satellite catalogs by automatically collecting new object reference while reading TLE .txt files ? I treated a similar question in the 90's in an application I wrote to update F6FBB bbs satellite data base. Bernard, f6bvp / ai7bg

[f6bvp]

While debugging I found that new satellite files are actually created but corresponding satellite numbers are not appended at the end of corresponding .cat file.

[f6bvp]

After a new Gpredict source download, compilation and install I found that satellite .cat files where correctly updated for galileo satellites I am interested in. This time I updated TLE before configuring ground station. I will check again in order to verify if .cat file update depends on Gpredict initial configuration, selecting update with new satellite.