The launch of NASA’s Gravity Probe B spacecraft aboard
a Boeing Delta II rocket has been scrubbed for 24 hours.

A hold was called approximately three minutes before lift
off, after it was determined there was insufficient time to
confirm before launch the correct wind profile had been
loaded aboard the Delta II based on the data from the final
weather balloon. The team was waiting on this final weather
balloon data due to marginal upper level wind conditions
that were observed throughout the countdown.

The launch is scheduled for 12:57:24 p.m. EDT on Tuesday.
NASA TV launch coverage on Tuesday begins at 10:45 a.m. EDT.
NASA TV is available on AMC-9, transponder 9C, C-Band,
located at 85 degrees west longitude. The frequency is
3880.0 MHz. Polarization is vertical, and audio is monaural
at 6.80 MHz. For information about NASA TV on the Internet,
visit:

http://www.nasa.gov/ntv

For information about GP-B on the Internet, visit:

http://einstein.stanford.edu & http://www.gravityprobeb.com