probe

TOMS aboard Nimbus-7 and Meteor-3 provided global measurements of total column ozone on a daily basis and together provide
a complete data set of daily ozone from November 1978 - December 1994. After an eighteen month period when the program had
no on-orbit capability, ADEOS TOMS was launched on August 17, 1996 and provided data until June 29, 1997. Earth Probe
TOMS was launched on July 2, 1996 to provide supplemental measurements, but was boosted to a higher orbit to replace the failed
ADEOS. Earth Probe continues to provide near real-time data.