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CAST3000
The CAST3000 satellite bus was designed for high resolution optical imaging and radar imaging missions in sun synchronous orbit. It could be adapted to other missions. The bus had a mass of 400 kg and could support payloads of up to 400 kg requiring 1100 W of power.

Status: Operational 2013. First Launch: 2013-07-19. Last Launch: 2013-07-19. Number: 1 .

The CAST3000 was a small satellite bus providing the necessary precision, agility, automation, life-span and reliability to support high resolution and agile imaging missions. The bus could rapidly perform a wide range of attitude maneuvers with free space pointing capacity. It was capable of multi-mode imaging (including area target imaging, continuous strap imaging, composite strips imaging and single orbit stereo imaging. It supported S/X data transmission; had the capability of automatic onboard mission management and scheduling using an integrated onboard electronic system. The bus achieved a 50-60% net payload and a 5-year design life.

Technical Specifications
Bus mass: 300-400kg
Payload capacity: >380kg
Orbit type: low, medium and high orbits
Attitude control ability: 3-axis stabilization,
Pointing mode: earth pointing or inertial space pointing
Attitude maneuver ability: maneuver range: +-45 deg (along roll and pitch axes)
Stereo speed: 5 deg within 11s, 15 deg within 16s, 30 deg within 21s, 45 deg within 25s, 60 deg within 30s, 90 deg within 35s (including stabilization time, along roll and pitch axes)
Attitude measurement accuracy: < 0.001 deg (3-axis 3-sigma);
Attitude pointing accuracy: < 0.05 deg (3-axis 3-sigma);
Attitude stability: < 0.0005/s (3-axis 3-sigma)
Orbit control: hydrazine propellant: 32.5 kg; 130 kg optional
Solar array output power: 945 - 1148 W (EOL)
Designed lifetime: >5 years



Subtopics

SY 7A, 7B Earth observation satellite built by DFH Satellite Co. Ltd of CAST, China. Launched 2013. Used CAST3000 bus.

GaoJing-1 01, 02, 03, 04 (SuperView 1) Earth observation satellite built by CAST for Beijing Space View Tech Co Ltd, China. Launched 2016. Used CAST3000B bus.

Family: Surveillance. Country: China. Launch Vehicles: Chang Zheng 4C.

2013 July 19 - . 23:37 GMT - . Launch Site: Taiyuan. Launch Pad: xxx. LV Family: CZ. Launch Vehicle: Chang Zheng 4C.
  • Shiyan 7 - . Mass: 800 kg (1,760 lb). Nation: China. Class: Surveillance. Type: Surveillance satellite. Spacecraft: CAST3000. USAF Sat Cat: 39208 . COSPAR: 2013-037A. Apogee: 674 km (418 mi). Perigee: 660 km (410 mi). Inclination: 98.0400 deg. Period: 98.09 min. Satellite inspector with robotic arm. After maneuvering close to Chuangxin-3 on 6 and 9 August, it completed an unexpected rendezvous in a 564 x 610 km x 97.7 deg orbit with the Shi Jian 7 (SJ-7), launched in 2005..

2016 December 28 - . 03:23 GMT - . Launch Site: Taiyuan. LV Family: CZ. Launch Vehicle: Chang Zheng 2D.
  • Gaojing 1 - . Payload: Superview-1 01. Nation: China. Class: Surveillance. Type: Surveillance satellite. Spacecraft: CAST3000. USAF Sat Cat: 41907 . COSPAR: 2016-083A. Apogee: 523 km (324 mi). Perigee: 212 km (131 mi). Inclination: 97.6000 deg.

    The first time the CZ-2D booster was flown from their southern launch site. However, the rocket appeared to have run into problems and achieved orbit with an underspeed of 100 m/s, making a 212 x 520 km orbit instead of a circular 500 km one. The main payloads were Gaojing 1 and 2, two commercial high resolution (0.5m) imaging satellites also called SuperView 1 and 2. The satellites were owned by Beijing Aerospace World View Information Technology Co., Ltd (also called Beijing Space View Tech Co.Ltd.); the US company DigitalGlobe was a major investor. 1030LT SSO

  • Gaojing 2 - . Payload: Superview-1 02. Nation: China. Class: Surveillance. Type: Surveillance satellite. Spacecraft: CAST3000. USAF Sat Cat: 41908 . COSPAR: 2016-083B. Apogee: 523 km (324 mi). Perigee: 212 km (131 mi). Inclination: 97.6000 deg. 1030LT SSO.


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