Reimei

Reimei
Spacecraft properties

Operator	JAXA
COSPAR ID	2005-031B
SATCAT no.	28810


Launch mass	72 kg (159 lb)
Dimensions	72 cm × 62 cm × 62 cm


Start of mission
Launch date	24 August 2005 (2005-08-24)
Rocket	Dnepr
Launch site	Baikonur Pad 109/95^[1]


Orbital parameters
Reference system	Geocentric
Regime	Low Earth orbit
Semi-major axis	6,975.4 km (4,334.3 mi)
Eccentricity	0.0027340
Periapsis altitude	578.19003
Apoapsis altitude	616.33149
Inclination	98.1777
Period	96.63 min
Mean motion	14.9020938 rev/day
Epoch	May 3, 2018, 22:37:00.128 UTC^[2]

Instruments
25 μm-thick polyimide mirrors

Reimei ('Dawn') is the in-flight name for a small Japanese satellite known during development as INDEX (INnovative-technology Demonstration Experiment), developed in-house at JAXA both to serve as a demonstration of small-satellite technologies (particularly high-performance and high-accuracy attitude control) and to perform simultaneous optical and charged-particle observation of the aurora. A notable feature is the 25 μm-thick polyimide mirrors used for concentrating sunlight onto the solar arrays.

It is 72 cm × 62 cm × 62 cm and weighs 72 kilograms. The construction budget was $4 million. The satellite was launched into a near-Sun-synchronous 630 km orbit on 24 August 2005 as a piggyback on the OICETS launch on the Dnepr launch vehicle.^[3]^[4]

References

^ Wade, Mark. "Reimei". www.astronautix.com. Archived from the original on December 27, 2016. Retrieved 7 June 2020.
^ "INDEX - Orbit". May 3, 2018. Retrieved May 4, 2018.
^ Saito, Hirobumi (2006), "Overview and initial in-orbit status of "INDEX" satellite", Proceedings of the 20th Annual AIAA/USU Conference on Small Satellites, SSC06-IV-1
^ "Innovative-technology Demonstration Experiment REIMEI" (PDF). JAXA. Retrieved 2015-12-19.

Japanese space program

Italics indicates projects in development.
Symbol ^† indicates failed projects.
~~Strikethrough lines~~ indicate cancelled projects.

Space agencies

National space agencies	JAXA former ISAS NAL NASDA NICT JSS
Joint development partners	NASA¹ ESA² ASI³ CSA⁴ Roscosmos⁵ AEB⁶ INPE⁷ ISRO⁸

Astronomical observation

Past	Akari ASCA ASTRO-E^† ~~Astro-G~~ CORSA^† Ginga Hakucho HALCA Hinotori Hitomi^† ~~SPICA~~ Suzaku Tenma Yohkoh
Active	Hinode Hisaki XRISM¹
Future	ATHENA² SOLAR-C¹ GREX-PLUS [ja] HiZ-GUNDAM [ja] LAPYUTA LiteBIRD Nancy Grace Roman Space Telescope¹ Nano-JASMINE Small-JASMINE

Communications satellites, broadcasting satellites and satellite navigation systems

Past	BS 2X 3H 3N Kakehashi Kirari Kizuna Kodama MBSat N-STAR a b Sakura (1 2a 2b 3a 3b) Yuri 1 2a 2b 3a 3b
Active	Kirameki 1 2 Michibiki 1 2 3 4 1R MTSAT N-STAR c d JDRS
Future	DSN 3 QZS 5 6 7

Earth observation

Past	Akebono Daichi 1 3^† Denpa Fuyo-1 Jikiken Kyokko Midori I II Momo 1 1b Ohozora Taiyo TRMM¹ Ume 1 b Geotail¹
Active	Aqua^1,7 Arase ASNARO 1 2 Daichi-2 GPM¹ Himawari Ibuki original 2 Shikisai Shizuku
Future	ALOS-4 EarthCARE² GOSAT-GW PMM

Engineering tests

Past	Ayame 1 2 DASH EXPRESS IKAROS Jindai Kiku 1 2 3 4 5 6 7 8 LDREX 1 2 LRE Micro LabSat-1 Myojo Ohsumi Orizuru RAISE 2 3^† ~~PETSAT~~ RAPIS-1 Ryusei SERVIS-1 SERVIS-2 SDS-1 SFU Shinsei ~~SmartSat-1~~ Tansei 1 2 3 4 Tasuki Tsubame Tsubasa USERS
Active	Ajisai Reimei SDS-4
Future	BEAK ETS-IX G-SATELLITE SERVIS-3

Human spaceflight

Past	~~Fuji crewed spacecraft~~ ~~HOPE-X~~ H-II Transfer Vehicle
Active	International Space Station (ISS) & Japanese Experiment Module (Kibō)^1,2,3,4,5,6
Future	HTV-X Japanese Space Station Module (Mitsui) Lunar Gateway^1,2,4

Space probes

The Moon

Past	Hakuto-R Mission 1^† Hiten ~~Lunar-A~~ Kaguya (SELENE) OMOTENASHI^† ~~SELENE-2~~
Active	EQUULEUS Smart Lander for Investigating Moon (SLIM)
Future	Hakuto-R Mission 2 HERACLES^2,4 Lunar Cruiser Lunar Polar Exploration Mission⁸ (LUPEX) Yaoki

Others

Past	Hayabusa ~~Hayabusa Mk2~~ Nozomi^† PROCYON^† Sakigake Shin'en^† Suisei
Active	Akatsuki BepiColombo (MMO/Mio)² Hayabusa2 Jupiter Icy Moons Explorer²
Future	Comet Interceptor² DESTINY+ Dragonfly¹ Hera² MELOS Martian Moons eXploration Next Generation Small-Body Sample Return TEREX

Reconnaissance satellites

Past	IGS-Optical 1 2 Experimentally 3 IGS-Radar 1 2
Active	IGS-Optical 3 4 5 6 Experimentally 5 IGS-Radar 3 4 Spare 5 6
Future	IGS-Optical 7 8 IGS-Radar 7 8

Private small satellites

Past	CosMoz CUTE 1.7+APD Fuji 1 2 Hayato HIBARI HIT-SAT Kagayaki Kanta-kun (WEOS) Kūkai Maido-1 Negai☆″ Niwaka RAIKO Waseda-SAT2 WE WISH
Active	CUTE 1 1.7+APDII Fuji-3 Hitomi Hodoyoshi 1 2 3 4 Horyu 2 Kiseki PROITERES Raijin Raijin-2 SEEDS SOCRATES XI IV V
Future	DRUMS KITSUNE OPUSAT-II QSAT-EOS RSP-01 SOMESAT SpaceTuna1 SPROUT TSUBAME WNI satellite