The launch of Russia's Soyuz-2.1a space carrier with six U.S. Globalstar-2 communications satellites, has been postponed due to technical reasons, a spokesman for the Russian Space Agency said.
The spacecraft equipped with a Fregat booster was scheduled to blast off on July 11 at 6:58 Moscow time (2:58 GMT) from the Baikonur Space Center in Kazakhstan.
"We have postponed the launch till the reserve date on July 12. The reasons for the postponement will be announced later," the spokesman said.
Globalstar is a low-earth orbit (LEO) satellite-based telecommunications system founded by U.S.-based Loral Corporation and Qualcomm Inc. It provides high-quality satellite voice and data services across North America, and to over 120 countries worldwide.
Commercial launches of Soyuz carrier rockets are managed by Starsem, a European-Russian joint venture, which comprises EADS SPACE, Arianespace, the Russian Federal Space Agency, and the Samara-based Progress design and production center.