Arase

 2016-080A

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Exploration of Energization and Radiation in Geospace (ERG) is the second Epsilon/SPRINT satellite. It was renamed 'Arase' after launch.

ERG
Date	Time	Event	Orbit
2016 Dec 20	1100	Launch by Epsilon	Uchinoura
		T+1:49 St 1 cutoff 71 km 2.5 km/s
		T+2:30 Fairing sep 115 km 2.4 km/s
		T+2:41 St 1 sep 124 km
		T+2:25 St 2 ignition
		T+4:53 St 2 cufoff 194 km 5.9 km/s
	1106	T+6:38 St 2 sep 229 km 5.9 km/s
		T+6:42 St 3 burn
	1108	T+8:11 St 3 burnout
	1113	T+13:27 St 3 sep	564.36 228 x 32259 x 31.4
2017 Jan 16		PWE wires deployed
2017 Jan 17	2300	PWE deployment complete, spin rate to 7.5rpm

Payload:

• XEP-e Extremely high energy electrons (ISAS/Higashio,Matsumoto)

• HEP-e High energy electrons (ISAS/Mitani)

• MEP-e Med. energy Electron analyser (Tokyo/Kasahara)

• LEP-e Low energy Electron analyser (Taiwan NCKU/

• MEP-i Med. energy ion mass analyser (Tokyo/Kasahara)

• LEP-i Low energy ion mass analyser (ISAS/Asamura)

• MGF Magnetic field experiment, two 5.0m booms. (ISAS/Matsuoka)

• PWE Plasma Wave Experiment, 4 antennae. Span 30.0m. (Kanazawa U/Y.Kasahara)

• S-WPIA Software wave-particle interaction analyser (Kyoto/Kojima)