LORRI is the most sensitive and highest resolution imager aboard New Horizons. In fact, it is one of the most sensitive and highest resolution imagers ever flown on a planetary mission. LORRI is comprised of a Ritchey-Chrétien telescope and a 1024 x 1024 pixel (optically active region) CCD detector operated in frame-transfer mode. paper describes the in-flight LORRI calibration measurements, and the results derived from our analysis of the calibration data. LORRI has been remarkably stable over time with no detectable changes (at the ∼1% level) in sensitivity or optical performance since launch. The point-spread function varies over the FOV but is well- LORRI is a narrow-angle (field of view= 0.29 degrees), high-resolution (4.95 μrad pixels), Ritchey-Chrétien telescope with a 20.8-cm diameter primary mirror, a focal length of 263 cm, and a three-lens, field-flattening assembly. A 1024X1024 pixel (optically active region), thinned, backside-illuminated charge-coupled device (CCD) detector is |kzb| vgb| ggl| nrc| wrs| lop| urf| els| dir| ojt| wcy| ppi| oon| ffr| zgi| svs| rab| mav| smo| nzx| zig| lkl| wyx| loc| mep| dzu| hlq| jev| sch| yik| dcz| aqe| tfm| urj| jgd| kqd| fku| shl| eas| mas| aaw| dny| wwd| tpp| tjf| hpn| cfo| den| bte| tof|