DFH-50

 2000-050A

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ZY-2 was a domestic remote sensing satellite developed by CAST. It has 3-meter resolution. The satellite was flown into a 474 x 493 km orbit, much lower than ZY-1. In 2001, Bill Gertz of the Washington Times reported that the civilian ZY-2 name was a cover for the Jianbing-3 imaging military reconnaissance satellite.

The ZY-2 adjusted its orbit on a regular basis, keeping it within a few km of its operational altitude.

The Phoenix Eye 2 bus, 1.8 x 2.0 x 4.6m, with a 1200 kg payload capacity, may be the spacecraft used for ZY-2.

ZY-2
Date	Time	Event	Orbit
2000 Sep 1	0325	Launch by CZ-4B	Taiyuan
		T+2:33 Stage 1 MECO
		T+2:34 Stage 1 sep
		T+2:54 Fairing sep
		T+4:37 St 2 MECO
		T+4:47 St 2 VECO
		T+4:48 St 2 sep
		T+4:48 St 3 burn
	0336	T+11:18 St 3 MECO
	0337	T+12:28 ZY 2 sep	94.28 474 x 493 x 97.4
2000 Sep 8		Orbit raise	94.40 483 x 496 x 97.4
2000 Sep 10		Orbit raise	94.44 484 x 499 x 97.4
2000 Sep 28			94.42 482 x 499 x 97.4
2000 Sep 28		Orbit trim	94.45 485 x 499 x 97.41
2000 Oct 10		Orbit trim	94.45 486 x 498 x 97.4
2000 Oct 25		Orbit trim
2000 Nov 6		Orbit trim
2000 Nov 24		Orbit trim
2000 Dec 3		Orbit trim
2000 Dec 22		Orbit trim
2001 Jan 12		Orbit trim
2001 Feb 6		Orbit trim
2001 Mar 2		Orbit trim
2001 Mar 24		Orbit trim
2001 Apr 3		Orbit trim
2001 Apr 26		Orbit trim
2001 May 17		Orbit trim
2001 Jun 18		Orbit trim
2001 Jul 17		Orbit trim
2001 Sep 2		Orbit trim
2001 Sep 20		Orbit trim
2001 Oct 3			94.41 488 x 492 x 97.4
2001 Oct 3		Orbit trim	94.46 489 x 495 x 97.4