Beidou 22/23

 2015-037A

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Two new-generation MEO sats, Beidou M1-S amd M2-S, were launched as Beidou 18 and 19 in summer 2015. They flew on the new YZ-1 upper stage.

BDW18
Date	Time	Event	Orbit
2015 Jul 25	1229	Launch by CZ-3B/YZ1	XSC
		T+2:25 St 1 MECO
		T+2:26 St 1 sep
		T+4:19 Fairing sep
		T+5:28 St 2 MECO
		T+5:33 St 2 VECO
		T+5:34 St 2 sep St 3 MES
	1239	T+10:51? MECO-1	189 x 250?
	1241?	MES-2
	1243?	MECO-2
	1245?	Stage 3 sep	189 x 18390 x 55
	1246?	YZ-1 burn
	1250?	YZ-1 MECO	189 x 22000?
	1610?	YZ-1 burn 2
	1612?	YZ-1 MECO-2	21523 x 22193 x 54.9
	1615?	Beidou sep
	1620?	YZ-1 burn 3