| KAGUYA Overview |
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The Lunar Explorer "KAGUYA" is the Japan Aerospace Exploration Agency (JAXA)'s lunar probe to try get closer to the core of the mystery of the origin and evolution of the moon.
KAGUYA consists of the Main Orbiter, which circulates 100 kilometers above the moon, and two small satellites- a Relay Satellite and a VRAD Satellite. The advanced observation instruments for 15 various missions are installed and large-scale lunar exploration since the Apollo program will be performed. For further details of KAGUYA, see JAXA's site. @@ More details>> 
Courtesy of JAXA
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| Overview of H-IIA Launch Vehicle No.13 (H-IIA F13) |
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MHI has prepared an H2A2022 model, equipped with two solid strap-on
boosters (SSB), for injecting KAGUYA into lunar orbit. The payload fairing
model is 4S (4 meters in diameter, a dedicated launch fairing). |
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| Whole |
| Length
(m) |
53 |
| Liftoff Mass (t) |
321 (without payload mass) |
| Guidance Method |
Inertial Guidance Method |
| Item |
| |
First Stage |
SRB-A |
SSB |
Second Stage |
Payload Fairing |
| Length (m) |
37 |
15 |
15 |
11 |
12 |
| Diameter (m) |
4.0 |
2.5 |
1.0 |
4.0 |
4.0 |
| Mass (t) |
114 |
154
(2 units) |
31
(2 units) |
20 |
1.4 |
| Propellant Mass
(t) |
101 |
132
(2 units) |
26
(2 units) |
17 |
- |
| Thrust (kN) |
1,100* |
4,570* |
1,490*
(2 units) |
137* |
- |
| Burning Time
(s) |
390 |
120 |
60 |
530 |
- |
| Propellant |
LOX/LH2 |
Polybutadiene Composite Solid Propellant |
Polybutadiene composite solid propellant |
LOX/LH2 |
- |
| Propellant Loading Method |
Turbo pump |
- |
- |
Turbo pump |
- |
| Specific Impulse (s) |
440* |
281* |
282* |
448* |
- |
| Attitude control method |
Gimbal engine system,
Auxiliary engine |
Gimballed nozzle system |
- |
Gimbal engine system,
Gas jet system |
- |
| Avionics |
Control Systems,
Telemetry Transmitter |
- |
- |
Guidance Navigation and Control Systems,
Rader Transponder,
Telemetry Transmitter,
Command Destruct Receiver |
- |
* In vacuum. Maximum thrust for SRB-A. |
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