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ZDPS 1, 1A (Zheda Pixing 1, 1A)

ZDPS 1 [Zhejiang University]

The Zhejiang University's ZDPS 1 (Zheda Pixing) series of picosatellites were the first Chinese picosatellites.

The ZDPS-1 and 1A satellites were built as 15 cm × 15 cm × 15 cm cubes with a weight of 2.5 kg for ZDPS-1 and a weight of 3.5 kg for ZDPS-1A-01 and ZDPS-1A-02 each.

Their purpose is to demonstrate pico-satellite technologies:

  • an Universal S-Band (USB) TTC system
  • an active tri-axial stabilizing attitude control
  • a CMOS camera for panoramic Earth imaging

ZDPS-1 was launched as a piggy-back payload in 2007, but was apparently not successful.

ZDPS-1A-01 and ZDPS-1A-02 were both jointly launched in 2010 as piggy-back payloads and were the first pico-satellites that have been launched successfully in China. After two years successful in-orbit operation, main components of ZDPS-1A still work well.

Nation: China
Type / Application: Technology
Operator: Zhejiang University
Contractors: Zhejiang University
Power: Solar cells, batteries
Mass: 2.5 kg (#1); 3.5 kg (#1A)
Orbit: 651 km × 931 km, 97.81 (#1); 621 km × 657 km, 98.01 (#1A-1); 622 km × 657 km, 97.99 (#1A-2)
Satellite COSPAR Date LS Launch Vehicle Remarks
ZDPS 1 (Zheda Pixing 1) 2007-019B 25.05.2007 Jq LC-43/94 CZ-2D (2) with Yaogan 2
ZDPS 1A-1 (Zheda Pixing 1A-1) 2010-047B 22.09.2010 Jq LC-43/94 CZ-2D (2) with Yaogan 11, ZDPS 1A-2
ZDPS 1A-2 (Zheda Pixing 1A-2) 2010-047C 22.09.2010 Jq LC-43/94 CZ-2D (2) with Yaogan 11, ZDPS 1A-1
Further ZDPS missions:

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