Mr. Harbaugh has a commercial pilot's license with instrument rating, and over 1500 hours total flying time.
Selected by NASA in June 1987, Mr. Harbaugh became an astronaut in August 1988. His technical assignments to date have included work in the Shuttle Avionics Integration Laboratory (SAIL), the Shuttle Remote Manipulator System (RMS), telerobotics systems development for Space Station, the Hubble Space Telescope servicing mission development, spacecraft communicator (CAPCOM) in Mission Control, and extravehicular activity (EVA) for the International Space Station Alpha (ISSA).
Mr. Harbaugh flew as a Mission Specialist aboard the Space Shuttle Discovery on STS-39, from April 28 through May 6, 1991. This eight-day unclassified Department of Defense mission involved research for the Strategic Defense Initiative. Mr. Harbaugh was responsible for operation of the RMS and the Infrared Background Signature Survey (IBSS) spacecraft, and he was one of two crewmen trained for EVA in the event of a contingency requiring a space walk. Mission duration was 199 hours, 22 minutes.
Mr. Harbaugh then served as Flight Engineer (Mission Specialist) aboard Space Shuttle Endeavour on STS-54, January 13-19, 1993. The six-day mission featured the deployment of TDRS-F, and a 4-hour 28-minute space walk by Mr. Harbaugh. Mission duration was 143 hours 38 minutes.
Mr. Harbaugh was also assigned as the backup EVA crew member for STS-61, the first Hubble Space Telescope servicing mission.
From June 27 to July 7, 1995, Mr. Harbaugh flew as the Flight Engineer (Mission Specialist) on a seven-member (up) eight-member (down) crew on Space Shuttle mission STS-71. This was the first docking with the Russian Space Station Mir, and involved an exchange of crews. The Atlantis Space Shuttle was modified to carry a docking system compatible with the Russian Mir Space Station. Mr. Harbaugh was responsible for the inflight operation of the docking system. He was also assigned to perform any contingency EVA, although none was required. Mission duration was 235 hours, 23 minutes.
More recently, Mr. Harbaugh served on the crew of STS-82, the second Hubble Space Telescope (HST) maintenance mission. STS-82 launched at night on February 11 and returned to a night landing at Kennedy Space Center on February 21, 1997. During the 9-day flight, the crew retrieved and secured the HST in Discovery's payload bay. In five space walks, two teams installed two new spectrometers and eight replacement instruments, as well as placing insulation patches over several compartments containing key data processing, electronics and scientific instrument telemetry packages. Mr. Harbaugh participated in two space walks, totaling 14 hours and 01 minute. Following completion of upgrades and repairs, HST was redeployed and boosted to its highest orbit ever. The flight was completed in 149 orbits covering 3.8 million miles in 239 hours, 37 minutes.
A veteran of four space flights, Mr. Harbaugh has logged a total of 818 hours in space, including 18 hours, 29 minutes EVA.
Manned seven crew. Deployed USA 70, CRO A, CRO B, CRO C; deployed and retrieved IBSS. Payloads: Infrared Background Signature Survey (lBSS), Air Force Program (AFP)-675, Space Test Payload (STP)-I, Multi-Purpose Experiment Canister (MPEC), Cloud Logic to Optimize Use of Defense Systems (CLOUDS)-1A, Radiation Monitoring Equipment (RME)-lll.
Manned five crew. Deployed TDRSS 6. Payloads: Tracking and Data Relay Satellite (TDRS)-F/Inertial Upper Stage (IUS); Diffuse X-ray Spectrometer (DXS); Chromosome and Plant Cell Division in Space (CHROMEX); Commercial Generic Bioprocessing Apparatus (CGBA) A; Physiological and Anatomical Rodent Experiment (PARE) 02; Solid Surface Combustion Experiment (SSCE).
Tested tools and techniques for extravehicular activity.
Mir Expedition EO-19. Transferred Budarin, Solovyov to Mir, returned Soyuz TM-21 crew to Earth. After undocking from Mir on July 4, Atlantis spent several days on orbit, carrying out medical research work with the Spacelab-Mir module in the cargo bay. Payloads: Shuttle/Mir Mission 1, Spacelab-Mir, IMAX camera, Shuttle Amateur Radio Experiment (SAREX).
After a spectacular night launch, the Shuttle completed its rendezvous with Hubble Space Telescope on February 13. Over the next four days five spacewalks were undertaken to renovate Hubble.
The Hubble Space Telescope was released back into orbit at 06:41 GMT on February 19. Discovery landed on Runway 15 at Kennedy Space Center at 08:32 GMT on February 21.
Hubble Space Telescope Servicing Mission 2 - Guidance sensor replacement.
Hubble Space Telescope Servicing Mission 2 - Solar array drive replacement.