QUESTION:
Were there any design corrections made to the Sojourner?  If so, what were
they and how did you fix them?
 
ANSWER from Cathy Davis on February 8, 1997:
All spacecraft undergo some thorough testing in the middle of their
development cycle so that we have a chance to make adjustments.  Sojourner
has a twin sister named Marie Curie.  Marie was thoroughly tested first and
then design corrections were implemented and retested.  Then the corrections
were transferred to Sojourner. We are still running software tests now with
Marie Curie.  We can upload new software to the Rover when we wake it up in
June.