"Keyword 'MISSION' not found." for some fits files

Problem description

Some Kepler light curve fits files downloaded with the wget scripts at https://archive.stsci.edu/kepler/publiclightcurves.html do not have the MISSION keyword in their headers (especially quarter 1 data for KIC 9821777 and above?). This missing keyword renders the data inaccessible to lightkurve. I have not been able to set the mission attribute manually either. Can this attribute be None if the keyword is not in the header as is done for “Campaign” for Kepler data?

Example

import lightkurve
klf = lightkurve.KeplerLightCurveFile(path='kplr009821777-2009166043257_llc.fits')  
print(klf.PDCSAP_FLUX)

Expected behavior

Should print the flux array, but instead returns KeyError: “Keyword ‘MISSION’ not found.”

Environment:

• platform (e.g. Linux, OSX, Windows): Linux
• lightkurve version (e.g. 1.0b6): 1.0b8
• installation method (e.g. pip, conda, source): pip

[barentsen]

(Many thanks @keatonb for bringing this issue to our attention 👍 👍 👍 )

[texadactyl]

Is that why their domain is down?