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CAST3000

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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

• 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: 98.04 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..

• 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: 97.60 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: 97.60 deg. 1030LT SSO.