LunarA penetrators

The Lunar-A project was originally intended for launch in the late 1990s, carrying two (originally three) penetrators for lunar seismology. However, the mission has been subject to multiple delays; at the time of writing no new launch date has been set (Figure 19.3).

Target Objectives Prime contractor Launch site, vehicle Launch date Arrival date Landing site co-ordinates

Payload experiments

Delivery architecture Thermal aspects Power aspects Communications architecture EDL architecture

Landing speed(s) Active operations

(deployments, etc.) Key references

The Moon

Lunar seismology and heat flow measurements

ISAS/JAXA + NTS

Unknown

Undetermined year after launch One penetrator will be targeted in the vicinity of the Apollo 12 and 14 landing sites on the lunar near-side, with the other aimed close to the antipodal point on the far side Each penetrator has a battery life of approximately 1 year Each penetrator has a mass of 14 kg, plus ^31kg for deorbit and attitude control

• Seismometer

• T & thermal conductivity sensors

• Accelerometry

The Project Scientist is Hitoshi Mizutani (retired) Separation from Lunar-A orbiter after orbit insertion. Deorbit Passive thermal control (protected underground by regolith) LiSOCl2 primary batteries Two-way relay via Lunar-A orbiter

Rhumb-line manoeuvre; separation of de-orbit motor/attitude control stage; impact penetration 285 ms— 1 (planned) None

Mizutani et al, 2001, 2003

Figure 19.3 Lunar-A Penetrators.

0 0

Post a comment