urn:nasa:pds:context:instrument:lowell.hall_ritchey-chretien_1_1m07.nasa42cam 1.0 1.15.0.0 Product_Context 2023-02-28 1.0 Initial export from OLAF urn:nasa:pds:context:telescope:lowell.hall_ritchey-chretien_1_1m07 instrument_to_telescope NASA42 Camera Imager The NASA42 Camera is an imager on the Lowell Observatory Hall 42-inch (1.07m) telescope. It is a CCD 4kx4k 15 micron e2v CCD231. It is most commonly used with 2x2 binning. The plate scale in 2x2 binned mode is 0.74 arcsec/pixel. The unvignetted FOV is 25.3 arcmin, while the vignetted (due to the filter size) FOV is 22 arcmin. It can be used with 1, 2, or 4 amplifier. It uses a Cryotiger mechanical cooler. The gain varies from 4.62 e/DN to 4.82 e/DN, and the noise from 5.3 e to 5.5 e depending on the amplifier(s) used.