The Visible Imaging System (VIS) for the Polar Spacecraft

Details The Visible Imaging System (VIS) for the Polar Spacecraft The Visible Imaging System (VIS) for the Polar Spacecraft

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ssrv...71..297f&link_type=abstract

Space Science Reviews, Volume 71, Issue 1-4, pp. 297-328

Physics

Optics

62

Scientific paper

The Visible Imaging System (VIS) is a set of three low-light-level cameras to be flown on the POLAR spacecraft of the Global Geospace Science (GGS) program which is an element of the International Solar-Terrestrial Physics (ISTP) campaign. Two of these cameras share primary and some secondary optics and are designed to provide images of the nighttime auroral oval at visible wavelengths. A third camera is used to monitor the directions of the fields-of-view of these sensitive auroral cameras with respect to sunlit Earth. The auroral emissions of interest include those from N{2/+} at 391.4 nm, O i at 557.7 and 630.0 nm, H i at 656.3 nm, and O ii at 732.0 nm. The two auroral cameras have different spatial resolutions. These resolutions are about 10 and 20 km from a spacecraft altitude of 8R e . The time to acquire and telemeter a 256×256-pixel image is about 12 s. The primary scientific objectives of this imaging instrumentation, together with thein-situ observations from the ensemble of ISTP spacecraft, are (1) quantitative assessment of the dissipation of magnetospheric energy into the auroral ionosphere, (2) an instantaneous reference system for thein-situ measurements, (3) development of a substantial model for energy flow within the magnetosphere, (4) investigation of the topology of the magnetosphere, and (5) delineation of the responses of the magnetosphere to substorms and variable solar wind conditions.

Affiliated with

Also associated with

No associations

Rating

The Visible Imaging System (VIS) for the Polar Spacecraft does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Visible Imaging System (VIS) for the Polar Spacecraft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Visible Imaging System (VIS) for the Polar Spacecraft will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1824828