KSLV 1 (Naro 1)
Launch vehicle KSLV 1 (Naro 1)
Launch site Naro, South Korea
Date/Time 2009-08-25 0800 UTC
Description Payload fairing separation failure
Cause unknown
Payload Science Technology Satellite 2 (STSAT 2)
Desired orbit low-Earth


South Korean officials said the STSAT-2 experimental satellite it attempted to put into orbit aboard a KSLV-1 launcher probably burned up in the atmosphere.

The Ministry of Education, Science and Technology said that while the first and second stage rockets of the Korea Space Launch Vehicle-1 (KSLV-1 a.k.a. Naro 1) separated as planned after lift-off, one of the two halves of the payload fairing did not fall off properly.

Only one half was ejected 216 seconds after launch with the other section remaining in place until the satellite separated from the second stage rocket 540 seconds into the flight, the ministry said.

"The fairings weigh 300 kg or three times more than the scientific satellite, making it effectively impossible for the second stage rocket to generate the necessary thrust to keep the satellite in orbit," said Vice Science and Technology Minister Kim Jung-hyun.

Last updated: 06 September 2009

Launch Failures Chronology