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Location not plotted and negative sat altitude #134

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Alex-developer opened this issue Mar 22, 2013 · 1 comment

Alex-developer commented Mar 22, 2013

Just tried isat on http://science.nasa.gov/iSat/ and spotted a few things, see attached image

After allowing the browser to use my location, the UK, no location marker is being plotted 9In Chrome / Firefox on Windows) Its fine on my MacBook
The satellites altitudes are always showing as a large negative number
Not sure the longitude is right

Alex

Author

Alex-developer commented Mar 22, 2013

carte = new Cesium.Cartesian3(pos0[0], pos0[1], pos0[2]);

I think thats the issue. The coordinates are in the wrong reference frame.

I have some javascript that can calculate the lat/lon and alt if you want to take a look. Its the Calculate_LatLonAlt method in this class https://github.com/Alex-developer/agsattrack/blob/master/js/classes/spmengines/predictlib/predictlib.js

Thats a very 'fixed' version of predictlib - Most of the ones floating around on the net don't work

Alex

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