Code like this works fine:
http://legacysurvey.org/viewer/jpeg-cutout?ra=135.4466&dec=16.8143&size=200&layer=decals-dr7&pixscale=0.1&bands=grz
But if I try to get just the g band data (say), I get a Server Error.
Of course, I can always get the g-band FITS … e.g.
curl -o ‘name’ ‘http://legacysurvey.org/viewer/fits-cutout?ra=135.4466&dec=16.8143&size=200&layer=decals-dr7&pixscale=0.1&bands=g’
Hmm, we don’t currently have that capability / option.
Thanks.
I’ve come across some jpegs which are just two (maybe even one?) band(s); I guess that part of the sky wasn’t observed in all three bands at the time the jpeg database was put together (I’ll see if I can find some examples later).
Do you know how those work, as in one can get a jpeg even if one of RGB is missing?
Correct, if we only observed some of the filters, then we generate a color JPEG lacking some of the color planes. But it’s not currently possible to purposely request only one or two bands 
I see. Thanks!
I’ll see if I can save a FITS (in one band only) as a jpeg (should be easy using DS9, right?) …