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David E. Steitz
Headquarters, Washington
(Phone: 202/358-1730)

Bruce Buckingham
Kennedy Space Center, Fla.
(Phone: 321/867-2468)

Barry Beneski
Orbital Sciences Corp., Dulles, Va.
(Phone: 703/406-5528)

Louis Michon
Canadian Space Agency, Saint-Hubert, Quebec
(Phone: 450/926-4338)

August 4, 2003
SCISAT Launch Set
The Canadian Space Agency's Scientific Satellite Atmospheric Chemistry Experiment (SCISAT-1) is scheduled to launch on Tuesday, August 12, between 10:05 and 11:02 p.m. EDT.

An L-1011 jet aircraft will take off from Vandenberg Air Force Base (VAFB), Calif., carrying the Pegasus XL vehicle that will launch SCISAT-1 into space. The L-1011 will drop the Pegasus, and its 330-pound spacecraft, over the Pacific Ocean, approximately 100 miles west of VAFB, at approximately 10:10 p.m. EDT. The SCISAT-1 mission will provide scientists with improved measurements of the chemical processes that control the distribution of ozone in Earth's atmosphere, particularly at high latitudes. The SCISAT spacecraft will enter a 400-mile-high polar orbit at an inclination of 73.9 degrees.

The prelaunch press conference will be at the NASA-KSC Resident Office at VAFB and carried live on NASA Television Monday, August 11, at 4 p.m. EDT. Two-way question and answer capability will be available from NASA Headquarters, Washington; Kennedy Space Center, Fla.; and Goddard Space Flight Center, Greenbelt, Md.

Participants in the pre-launch news conference include:
- Charles Dovale, NASA launch director, Kennedy Space Center
- Bryan Baldwin, Pegasus Launch Vehicle program manager, Orbital Sciences Corp.
- SCISAT project manager, Canadian Space Agency
- Glen Rumbold, SCISAT mission scientist, Canadian Space Agency
- Launch weather officer, USAF 30th Weather Squadron, VAFB

Media should meet at the south gate of VAFB on California State Road 246 NLT 3:30 p.m. EDT on Monday, August 11, for escort to the NASA VAFB Resident Office.

Media desiring accreditation information should contact the Air Force at:

Public Affairs Office
Vandenberg Air Force Base
Telephone: 805/606-3595
FAX: 805/606-8303

On launch day, media representatives should meet at the VAFB main gate at 8:30 p.m. EDT to be escorted to the runway for the take-off of the L-1011. After departure, media may follow the release and launch of Pegasus/SCISAT from the viewing room of the NASA Mission Director's Center located at Building 840 on South VAFB.

Assuming a nominal flight of the Pegasus launch vehicle, a post-launch news conference will not be held. However, launch vehicle and spacecraft representatives will be available afterward to informally answer questions from the media.

Launch coverage on NASA Television begins at 8:30 p.m. EDT through spacecraft separation from the Pegasus vehicle. NASA Television is broadcast 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. Live launch commentary and audio of the Pegasus/SCISAT briefing will be available on the "V" audio circuits available at: 321/867-1220/1240/1260/7135.

The Pegasus/SCISAT News Center at the NASA VAFB Resident Office will be staffed starting on Monday, August 11 and may be reached between 11 a.m. and 7:30 p.m. EDT at 805/605-3051/3001. A recorded status report will also be available beginning on L-3 day, Friday, August 8, and may be reached by dialing 805/734-2693.

Click the "Watch NASA TV Now!" link for live Web cast at:

NASA sponsors the mission under its Small Explorer spacecraft program and is responsible for countdown and launch management. Orbital Sciences Corp. will provide the launch service, and the Canadian Space Agency is responsible for spacecraft development.


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