| 词条 | OREX |
| 释义 |
| name = Ryusei | image = | image_caption = | mission_type = Technology | operator = NASDA | website = {{url|http://www.jaxa.jp/projects/rockets/orex/index_e.html}} | COSPAR_ID = 1994-007A | SATCAT = 22978 | mission_duration = 2 hours | manufacturer = NASDA | launch_mass = {{convert|865|kg}} | landing_mass = {{convert|761|kg}} | launch_date = {{start-date|3 February 1994, 22:20|timezone=yes}} UTC[1] | launch_rocket = H-II | launch_site = Tanegashima Yoshinobu 1 | launch_contractor = | landing_date = {{end-date|4 February 1994, 00:30|timezone=yes}} UTC[2] | landing_site = Pacific Ocean | orbit_epoch = 3 February 1994[3] | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = {{convert|448|km|mi}} | orbit_apoapsis = {{convert|458|km|mi}} | orbit_inclination = 30.5 degrees | orbit_period = 93.64 minutes | apsis = gee }} OREX (Orbital Re-entry Experiment) was a NASDA re-entry demonstrator prototype which was launched in 1994 on the H-II launcher; the satellite was renamed {{Nihongo|Ryūsei|りゅうせい|Shooting star}}. It was a precursor for the Japanese space shuttle HOPE. OREX tested various communications systems, heating profiles and heat shielding components for HOPE. References1. ^{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|first=Jonathan|last=McDowell|work=Jonathan's Space Page|accessdate=9 November 2013}} 2. ^{{cite web|url=http://planet4589.org/space/jsr/back/news.183|title=Issue 183|work=Jonathan's Space Report|first=Jonathan|last=McDowell|date=7 February 1994|accessdate=9 November 2013}} 3. ^{{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|first=Jonathan|last=McDowell|work=Jonathan's Space Page|accessdate=9 November 2013}} External links{{Portal|Spaceflight}}
2 : Satellites of Japan|Spacecraft launched in 1994 |
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