Kwangmyŏngsŏng-4
| Kwangmyŏngsŏng-4 | |
|---|---|
| Type: | Earth observation satellite |
| Country: |
 North Korea
|
| Operator: | NADA |
| COSPAR-ID : | 2016-009A |
| Mission dates | |
| Dimensions: | approx. 200 kg |
| Begin: | February 7, 2016, 12:29 AM UTC |
| Starting place: | Sohae |
| Launcher: | Unha-3 |
| Status: | in orbit |
| Orbit data | |
| Rotation time : | 94.3 min |
| Orbit inclination : | 97.5 ° |
| Apogee height : | 508 km |
| Perigee height : | 473 km |
Kwangmyŏngsŏng-4 ( Shining Star 4 ) is a North Korean satellite. Its launch on February 7, 2016 resulted in a condemnation of North Korea by the UN Security Council .
background
On February 2, 2016, North Korea informed some international authorities ( IMO , ICAO and ITU ) that a satellite was about to be launched. Protection zones were specified in which the first and second rocket stages and the payload fairing should go down. The zones were similar to those of the previous satellite launch in December 2012. The launch time window was specified as February 8th to 25th, 2016, which was postponed to February 7th to 14th shortly thereafter. In contrast to 2012, no foreign journalists were invited this time.
construction
Little is known about the structure of the satellite. No pictures were officially distributed, he was only briefly seen on North Korean television. It is assumed that Kwangmyŏngsŏng-4 has a similar structure to the Kwangmyŏngsŏng-3 , which was launched in 2012 , has solar cells for the energy supply and two cameras for earth observation.
begin
The launch took place on February 7 at 00:29 UTC from the Sohae rocket launch site in a southerly direction. An overflight from South Korea , Taiwan and the Philippines was apparently deliberately avoided.
North Korean media gave the missile type as Kwangmyŏngsŏng , corresponding to the satellite. However, comparisons of the photos and videos showed that it was the same type from 2012, which was then called the Unha-3 .
However, after observations initially indicated that the satellite was tumbling in its orbit, it later stabilized. So far, no radio signals have been picked up and North Korea has not yet indicated that it is in radio contact with the satellite.
Apparently the satellite was supposed to be placed in a sun-synchronous orbit . For this purpose, the height and inclination of the track must be coordinated. From orbit observations it can be concluded that the rocket did not reach the necessary speed for the chosen orbit inclination, so that the orbit is now not exactly synchronized with the sun.
Reactions
Internationally, this missile launch is seen as a covert test of a military long-range missile and thus as a violation of UN Security Council resolution 1874 . The UN Security Council condemned North Korea's actions and announced new sanctions. South Korea is negotiating with the United States to install a THAAD missile defense system in the country.
Web links
- Gunter's Space Page: Kwangmyŏngsŏng 4 (KMS 3) (English)
Individual evidence
- ^ Orbit data according to KMS-4. N2YO, February 12, 2016, accessed February 12, 2016 .
- ^ North Korea Tech: Launch notification reveals rocket drop zones. February 3, 2016, accessed February 12, 2016 .
- ^ North Korea Tech: All systems go? DPRK brings forward launch window. February 7, 2016, accessed February 12, 2016 .
- ↑ a b Gunter Krebs: Unha-3 (Kwangmyŏngsŏng, "Taepodong-2"). In: Gunter's Space Page. February 9, 2016, accessed February 12, 2016 .
- ↑ Andrea Shalal and David Brunnstrom: North Korea satellite in stable orbit but not seen transmitting: US sources. February 10, 2016, accessed February 12, 2016 .
- ^ Robert Christy: Kwangmyongsong February 4, 7, 2016, accessed on February 12, 2016 (English).
- ↑ Deutschlandfunk: UN Security Council condemns rocket launch. (No longer available online.) February 9, 2012, archived from the original on February 8, 2016 ; Retrieved February 12, 2012 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ USA offers South Korea stationing of missile defense. Die Welt, February 8, 2016, accessed February 12, 2016 .
