Spaceflight Now Home





Mission Reports




For 12 years, Spaceflight Now has been providing unrivaled coverage of U.S. space launches. Comprehensive reports and voluminous amounts of video are available in our archives.
Space Shuttle
Atlas | Delta | Pegasus
Minotaur | Taurus | Falcon
Titan



NewsAlert



Sign up for our NewsAlert service and have the latest space news e-mailed direct to your desktop.

Enter your e-mail address:

Privacy note: your e-mail address will not be used for any other purpose.



Advertisement






Space Books






With Russian help, South Korea poised for test launch
BY STEPHEN CLARK
SPACEFLIGHT NOW

Posted: October 25, 2012


After floundering on two previous launch attempts, South Korea is gearing up for a third try to orbit its own satellite Friday with a part-Russian, part-Korean rocket.


The Korea Satellite Launch Vehicle was placed on the launch pad in South Korea on Wednesday. Credit: Khrunichev
 
Engineers moved the rocket from an assembly hangar to the launch pad Wednesday, lifted the 108-foot booster vertical, and completed a countdown rehearsal Thursday, according to South Korea's Yonhap news agency.

The two-stage Korea Satellite Launch Vehicle 1, or KSLV 1, is scheduled to lift off during a launch window between 0630 GMT and 1000 GMT (2:30-6:00 a.m. EDT) Friday.

The opportunity extends from 3:30 p.m. to 7 p.m. local time at the Naro Space Center, a facility about 300 miles south of Seoul in the South Jeolla province near the southwestern tip of the Korean peninsula.

If the rocket works as designed, it will release a 200-pound test satellite named STSAT 2C about nine minutes after liftoff.

Two previous launches of the expendable rocket ended in failure.

In August 2009, one half of the launcher's nose fairing did not jettison as designed, and the extra mass caused a tumble and kept the rocket from reaching orbit.

Officials lost contact with the second KSLV launch in June 2010 about two minutes after liftoff, but a joint panel of Russian and Korean investigators could not agree on the cause of the explosion.

Russian engineers blamed the June 2010 explosion on the destruct system on the KSLV's Korean-made second stage. South Korean officials maintained the rocket's first stage - manufactured by Russian contractor Khrunichev - fell victim to an anomaly during its burn, according to South Korea's Ministry of Education, Science and Technology.

Both countries agreed to modifications to wiring for the flight termination system and payload fairing before the third launch, according to the Yonhap news agency.

Also called the Naro 1 rocket, the launcher weighs more than 300,000 pounds when filled with liquid and solid propellants.

Khrunichev built the kerosene-burning first stage and lent expertise in construction of the Naro launch pad and control center under a 2004 contract signed with the Korea Aerospace Research Institute.

South Korea has spent about $471 million in the Naro rocket program since 2002, according to Yonhap.

"Naro's third launch is an indispensable investment for the nation, laying the groundwork for Korea to emerge as a leading country in advanced space technology," said Roh Kyung-Won, director general of space and nuclear technology in South Korea's science ministry.

The joint Russian-Korean KSLV 1 rocket program is scheduled to end next year, and South Korea plans to develop an indigenous satellite launcher to fly by 2021.

Khrunichev's contribution to the KSLV 1 booster is based on the universal rocket stage designed for Russia's Angara launcher, which the country envisions will carry a wide range of satellites to space beginning in 2013, at the earliest. The Angara can fly with clusters of three to five universal first stages to haul heavier spacecraft to orbit.

A single kerosene-fueled RD-151 engine will generate 375,000 pounds of thrust to power the 10-story rocket off the launch pad. Produced by NPO Energomash, the RD-151 engine is a smaller version of the engine used on Zenit and Atlas rockets.

Passing the speed of sound in the first 55 seconds of flight, the KSLV will reach the upper atmosphere, release a clamshell-like aerodynamic nose shroud, and separate its Russian upper stage in the first four minutes of the mission.

The Korean-built solid-fueled upper stage will fire for 58 seconds to place the STSAT 2C spacecraft in a 186-mile by 932-mile orbit.

Final Shuttle Mission Patch

Free shipping to U.S. addresses!

The crew emblem for the final space shuttle mission is now available in our store. Get this piece of history!
 U.S. STORE
 WORLDWIDE STORE

STS-134 Patch

Free shipping to U.S. addresses!

The final planned flight of space shuttle Endeavour is symbolized in the official embroidered crew patch for STS-134. Available in our store!
 U.S. STORE
 WORLDWIDE STORE

Ares 1-X Patch
The official embroidered patch for the Ares 1-X rocket test flight, is available for purchase.
 U.S. STORE
 WORLDWIDE STORE

Apollo Collage
This beautiful one piece set features the Apollo program emblem surrounded by the individual mission logos.
 U.S. STORE
 WORLDWIDE STORE

Project Orion
The Orion crew exploration vehicle is NASA's first new human spacecraft developed since the space shuttle a quarter-century earlier. The capsule is one of the key elements of returning astronauts to the Moon.
 U.S. STORE


Fallen Heroes Patch Collection
The official patches from Apollo 1, the shuttle Challenger and Columbia crews are available in the store.
 U.S. STORE
 WORLDWIDE STORE

INDEX | PLUS | NEWS ARCHIVE | LAUNCH SCHEDULE
ASTRONOMY NOW | STORE

ADVERTISE

© 2014 Spaceflight Now Inc.