Speaker
Dr
Jaross Glen
(NASA)
Description
Data collected by the limb scattering instrument within the Ozone Mapping and Profiler Suite (OMPS) has taught us a great deal about the performance peculiarities of imaging limb sensors. Like ALTIUS, OMPS images the vertical extent of the Earth's limb using a 2-dimensional detector. In the case of OMPS the vertical coverage is approximately 100 km. This approach has advantages when accounting for diffuse upwelling radiation, but there are equally drawbacks, among them signal dynamic range and internally-scattered stray light. The OMPS limb instrument also shares problems common to all limb scatter sensors, namely telescope stray light and tangent height registration.
In this presentation we will outline our mostly successful attempts to mitigate these issues through a combination of pre-launch characterizations and post-launch empirical techniques. The OMPS flying on the Suomi National Polar-orbiting Partnership (SNPP) spacecraft since 2011 is the first of four instruments planned
through 2038. The more than 10 years between the launches of the first and second limb instruments has provided an opportunity for some design improvements, which we will briefly describe.
Primary author
Dr
Jaross Glen
(NASA)
Co-authors
Dr
David Haffner
(Science Systems and Applications, Inc.)
Dr
Ghassan Taha
(Universities Space Research Association)
Dr
Grace Chen
(Science Systems and Applications, Inc)
Dr
Leslie Moy
(Science Systems and Applications, Inc.)
Dr
Mark Kowitt
(Science Systems and Applications, Inc.)
Dr
Pawan Barthia
(NASA/GSFC)
