Saint-Hubert, April 18, 2000 — The Canadian Space Agency’s Measurements of
Pollution In the Troposphere (MOPITT) instrument is producing some exciting
results as part of a U.S.-Japanese-Canadian mission to study the Earth’s lands,
oceans, clouds and atmosphere. NASA will hold a press briefing to describe and
show images of the positive results from the five mission instruments aboard its
Terra satellite. The launch of Terra, aboard an Atlas IIAS rocket from Vandenberg
Air Force Base, California, took place on December 18, 1999.

The Principal Investigator for the MOPITT instrument, Dr. James Drummond, of the
University of Toronto, will participate in the NASA briefing and present the MOPITT

The NASA press briefing will be carried live on NASA Television, broadcasted on
the GE2, transponder 9C, C-Band, located at 85 degrees West longitude,
frequency 3880.0 MHz, audio 6.8 MHz.

Date: Wednesday, April 19, 2000
Time: 1:00-3:00 p.m. (EDT)
Location: NASA Headquarters, Washington, D.C.

For more information:

Caroline Lavallée
Senior Communications Officer
Canadian Space Agency
Tel.: (450) 926-4370
Cell.: (514) 943-6808