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Total Ozone Mapping Spectrometer–Earth Probe

TOMS-EP was a NASA Earth Probe mission dedicated to extending the global ozone record begun by earlier Total Ozone Mapping Spectrometer instruments. By comparing incoming solar ultraviolet light with radiation scattered back from Earth's atmosphere, it mapped total-column ozone, the Antarctic ozone hole, ultraviolet-absorbing aerosols, and sulfur-dioxide plumes at improved spatial resolution.

Total Ozone Mapping Spectrometer–Earth Probe
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Identity

Aliases
TOMS-EPEP/TOMSEarth Probe TOMS
Name
Total Ozone Mapping Spectrometer–Earth Probe
Status
completed

Details

Astronauts
-
Description
TOMS-EP was a NASA Earth Probe mission dedicated to extending the global ozone record begun by earlier Total Ozone Mapping Spectrometer instruments. By comparing incoming solar ultraviolet light with radiation scattered back from Earth's atmosphere, it mapped total-column ozone, the Antarctic ozone hole, ultraviolet-absorbing aerosols, and sulfur-dioxide plumes at improved spatial resolution.
Destination
Sun-synchronous low Earth orbit: initially approximately 490–515 km at 97.4° inclination, raised in December 1997 to approximately 740 km at 98.4° (99.7-minute period) for daily global ozone mapping and related aerosol and volcanic sulfur-dioxide observations
End Date
2005-12-14
Launch Site
Outcome
The Earth Probe spacecraft entered its planned initial orbit and began routine ozone observations later in July 1996. Its orbit was raised in December 1997, and TOMS-EP continued the daily global ozone record through December 14, 2005 while also supporting aerosol and volcanic sulfur-dioxide studies.
Programs
Start Date
1996-07-02
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Assets & Meta

Creation Time
July 18, 2026 at 17:20:42 UTC
Updated Time
August 23, 2026 at 02:28:15 UTC

Other

Affiliations
Search Name
Total Ozone Mapping Spectrometer–Earth Probe TOMS-EP EP/TOMS Earth Probe TOMS
Space Stations
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