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Commit to Launch: End-of-Mission       Landing Weather Criteria
 Image of a space shuttle taking off for space.At decision time for the deorbit burn 90 minutes before landing:
the visibility must be observed and forecast to be 5 nautical miles or greater;

the peak wind speed, regardless of direction, may not be observed or forecast to exceed 20 knots;

the peak cross wind shall not be observed or forecast to exceed 15 knots, 12 knots at night. If the mission duration is greater than nine days, the limit is 12 knots, day or night;

an observed or forecast cloud ceiling must be 10,000 feet or higher;

observed scattered cloud layers below 10,000 feet must not exceed 2/10 sky coverage;

landing in or near precipitation is not acceptable;

the deorbit burn shall not occur if thunderstorm, lightning, or precipitation activity is observed within 30 nautical miles of the Shuttle Landing Facility;

detached opaque thunderstorm anvils less than three hours old must not be observed or forecast to be within 20 nautical miles of the Shuttle Landing Facility, or within 10 nautical miles of the flight path when the orbiter is within 30 nautical miles of the runway.

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email Jim Botti

Source
Kennedy Space Center news release for October 4, 1995.

What Students Will Need to Know
NASA Space Shuttle Launches

NASA weather instrumentation

Space Shuttle Weather Launch Commit Criteria

Contingency Landing Criteria

End-of-Mission Landing Weather Criteria


Online Weather Resources
Latest KSC Area Weather

Space Science and Engineering Center (SSEC) Realtime Data

Penn State University Weather Pages

Current US Weather

The NOAA Weather Page

WebWeather
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