Launch from Cape Canaveral (
KSC);
landing at Cape Canaveral (
KSC). The launch was scrubbed on February 21, 2002 and
on February 28, 2002 due to technical problems. This flight was the fourth
Hubble Space Telescope Servicing mission.
The first
EVA
by John
Grunsfeld and Richard
Linnehan occured on March 04, 2002 (7h 1m) to install a new
generation solar array on the starboard side of the
HST.
The second
EVA
was performed by James
Newman and Michael
Massimino on March 05, 2002 (7h 16m) to install the new
port-side array and replace one of the four Reaction Wheel Assemblies.
The third
EVA
by John
Grunsfeld and Richard
Linnehan was conducted on March 06, 2002 (6h 48m) to exchange
the Power Control Unit (
PCU), the "electrical heart" of the
HST.
The fourth
EVA
by James
Newman and Michael
Massimino was performed on March 07, 2002 (7h 18m) to change
the Faint Object Camera (
FOC) with the
Advanced Camera for Surveys (
ACS)
and to install a new electronic support module für the
NICMOS Cryo Cooler.
The fifth and final
EVA
by John
Grunsfeld and Richard
Linnehan occured on March 08, 2002 (7h 20m) to install the
experimental cooling system (Cryo Cooler), replace the solid nitrogen cooler of
NICMOS. It was a new record for the most
EVA
hours in a single shuttle flight.