Data and Analysis LWS saves 6 dimensional FITS files. The relative capabilities of the three instruments are shown in this table . This filter has good transmission properties and is the most sensitive in this region. The 18.7 has poor transmission and is not very sensitive, however, it provides an alternate choice during marginal weather conditions. They have been temporarily installed for testing and help extend the wavelength coverage for users that need measurements in this region.
Quoted flux is light incident on telescope.
A peculiar software feature requires us to wait an integral number of frames for the chop motion to settle. The alternate which may be acceptable sometimes is to wait zero frames after the chop and take the hit in the psf in return for higher efficiency. Because LWS does not have a slit-viewing guider, LWS must be placed into imaging mode in order to position the target on the slit. Spectroscopy Mode checklist. See proof .