ASTAP error: decoding site longitude or latitude
Stacking program, astrometric (plate) solver, fits file viewer
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han59
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How can I fix this?
Hi Luis,
I get the same error message. Did you solve the problem?
cs Axel
Normally it is taken from the FITS header. In case of a DSLR camera it is missing but you can just enter it manually in the "Asteroid and Comet annotation" window. The menu for this Asteroid and Comet annotation" is in the viewer under tools or just press CTRL+R.
Han
Han,
thanks, that did the job. Is the information added to the header(s) of the files? I saw no change in the header, but also no tag related to the observation position.
cs Axel
The latitude and longitude is not written to the header. You could add it manually (in bulk) to selected files by the popup menu of the tab light or photometry. This by the menu "Change header keyword in the selected files". But it is not required. ASTAP will remember you location settings.
The position information will only be used for asteroids and comets and has only a small influence..
Han
Hi Han,
thanks for the info. However, I was working in the photometry tab, so why would the program need lon/lat information if it is only used for asteroids and comets?
cs Axel
It is used for calculating the altitude and therefore the airmass. It first tries to take the altitude from the header. It the header does not contain the altitude it takes the default values. The airmass is just an indication. Not used in any of the calculations.