Tansei 1

  1971-011A

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The MS-T1 satellite was the first ISAS technology satellite, used to test the Mu 4S launch vehicle and spacecraft bus instrumentation, following the failure of the first scientific payload MS-F1. MS-T1 was named Tansei (Light Blue, the colors of Tokyo University) after launch. The satellite transmitted for 8 days. It was Japan's second successful satellite and the first from the Mu program.

Tansei
Date	Time	Event	Orbit
1971 Feb 16	0400	Launch by Mu 4S-2	KASC
		T+0:07 SB burnout
		T+0:09 SB sep
		T+1:01 St 1 burnout
		T+1:21 Upper fairing sep
		T+1:22 Lower fairing sep
		T+1:23 St 1 sep
	0401	T+1:26 St 2 burn
		T+2:32 St 2 burnout
		T+2:42 St 2 sep
		T+2:43 St 3 burn
		T+3:25 St 3 burnout
	0403	T+3:45 St 3 sep, 300 km
			-5200? x 980? (from dV)
			46.16 -5212 x 981 x 31.69
	0411	T+11:30 St 4 burn 40s
	0412	T+12:10 St 4 burnout dV=3.565 km/s?
	0415	T+15:01 St 4 sep
			106.0 984 x 1103 x 29.7
	0421?	Stage 4 reentry
1971 Feb 24		End of transmissions