PROCYON

PROCYON
Mission type	Asteroid flyby, technology demonstration
Operator	University of Tokyo / JAXA
COSPAR ID	2014-076D
SATCAT no.	40322
Website	PROCYON on University of Tokyo site
Spacecraft properties
Launch mass	Total: 67 kg (148 lb)
Dry mass	64.5 kg (142 lb)
Dimensions	0.55 × 0.55 × 0.67 m (1.8 × 1.8 × 2.2 ft)
Power	25
Start of mission
Launch date	3 December 2014, 04:22 UTC
Rocket	H-IIA 202
Launch site	LA-Y, Tanegashima Space Center
End of mission
Last contact	3 December 2015
Flyby of Earth
Closest approach	3 December 2015
Flyby of (185851) 2000 DP107
Closest approach	Intended: 2016
	← Hodoyoshi 4 EQUULEUS →

PROCYON (Proximate Object Close flyby with Optical Navigation) was an asteroid flyby space probe that was launched together with Hayabusa2 on 3 December 2014 13:22:04 (JST). It was developed by University of Tokyo and JAXA. It was a small (70 kg, approx. 60 cm cube), low cost (¥500 million) spacecraft.^[1]

It was intended to flyby the asteroid (185851) 2000 DP107 in 2016,^[2] but the plan was abandoned due to the malfunction of the ion thruster.^[1]

^ ^a ^b プロキオン:小惑星への接近観測断念. Mainichi Shimbun. 8 May 2015. Archived from the original on 18 May 2015. Retrieved 8 May 2015.
^ 超小型探査機「PROCYON」二重小惑星を目指して航行中 [Very Small Probe PROCYON Cruising Toward a Binary Asteroid]. Space Elevator News. 7 April 2015. Archived from the original on 16 March 2017. Retrieved 7 April 2015.

[mainichi20150508-1] プロキオン:小惑星への接近観測断念. Mainichi Shimbun. 8 May 2015. Archived from the original on 18 May 2015. Retrieved 8 May 2015.

[2] 超小型探査機「PROCYON」二重小惑星を目指して航行中 [Very Small Probe PROCYON Cruising Toward a Binary Asteroid]. Space Elevator News. 7 April 2015. Archived from the original on 16 March 2017. Retrieved 7 April 2015.

[1]

[2]