A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
This article needs additional citations for verification. (May 2010) |
Mission type | Communications Technology |
---|---|
Operator | JAXA NICT NTT |
COSPAR ID | 2006-059A |
SATCAT no. | 29656 |
Website | www |
Mission duration | 10 years |
Spacecraft properties | |
Bus | DS-2000 |
Manufacturer | Mitsubishi Electric |
Launch mass | 5,800 kilograms (12,800 lb) |
Start of mission | |
Launch date | 18 December 2006, 06:32[1] | UTC
Rocket | H-IIA 204 |
Launch site | Tanegashima Yoshinobu 1 |
Contractor | Mitsubishi |
Entered service | 9 May 2007 |
End of mission | |
Deactivated | 10 January 2017 |
Orbital parameters | |
Reference system | Geocentric |
Regime | Geostationary |
Longitude | 145.7° east |
Semi-major axis | 42,163.77 kilometres (26,199.35 mi) |
Eccentricity | 0.0005611 |
Perigee altitude | 35,769 kilometres (22,226 mi) |
Apogee altitude | 35,816 kilometres (22,255 mi) |
Inclination | 3.04 degrees |
Period | 23.93 hours |
RAAN | 68.56 degrees |
Argument of perigee | 138.47 degrees |
Epoch | 29 October 2013, 19:34:27 UTC[2] |
JAXA Engineering Test Satellite ETS-VIII (Kiku 8) was the eighth technology test satellite in a series which started with ETS-1 in 1975 by NASDA. It was launched with the H-2A on December 18, 2006. ETS-VIII was developed by JAXA in cooperation with NICT and NTT. The aim of ETS-VIII was to enable satellite communications with small terminals. Unlike the Iridium satellites for mobile communication, ETS-VIII was positioned at GEO. However to fulfill the task, it was essential that the satellite carried two very large antennas. It was the first use of the 204 configuration (four strap-on boosters) of the H-IIA launch vehicle.
Timetable
- December 20, 2000: Launch of LDREX, a demonstration of the large antenna reflector deployment, aboard Ariane 5. Deployment failed.
- October 14, 2006: Launch of LDREX-2 with the Ariane 5, model antenna deployed successfully.
- December 18, 2006: ETS-VIII was launched aboard H-IIA.
- December 26, 2006: Both antennas were deployed. Archived 2007-01-02 at the Wayback Machine
- January 9, 2007: GEO orbit injection. Archived 2007-02-19 at the Wayback Machine
- May 9, 2007: The satellite switched to normal operation phase.
- January 10, 2017: Decommissioned.[3]
References
- ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 30 October 2013.
- ^ Peat, Chris (29 October 2013). "ETS 8 - Orbit". Heavens Above. Retrieved 30 October 2013.
- ^ 「きく8号」の運用終了について (in Japanese). JAXA. January 11, 2017. Retrieved January 12, 2017.
Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok. Podrobnejšie informácie nájdete na stránke Podmienky použitia.
Antropológia
Aplikované vedy
Bibliometria
Dejiny vedy
Encyklopédie
Filozofia vedy
Forenzné vedy
Humanitné vedy
Knižničná veda
Kryogenika
Kryptológia
Kulturológia
Literárna veda
Medzidisciplinárne oblasti
Metódy kvantitatívnej analýzy
Metavedy
Metodika
Text je dostupný za podmienok Creative
Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších
podmienok.
Podrobnejšie informácie nájdete na stránke Podmienky
použitia.
www.astronomia.sk | www.biologia.sk | www.botanika.sk | www.dejiny.sk | www.economy.sk | www.elektrotechnika.sk | www.estetika.sk | www.farmakologia.sk | www.filozofia.sk | Fyzika | www.futurologia.sk | www.genetika.sk | www.chemia.sk | www.lingvistika.sk | www.politologia.sk | www.psychologia.sk | www.sexuologia.sk | www.sociologia.sk | www.veda.sk I www.zoologia.sk