CAST2000 Satellite Platform
Overview
CAST2000 is a compact satellite platform characterised by its high performance, expandability and flexibility. It is fitted with an S-band TT&C sub-system, X-band data transmission sub-system and 3-axis attitude stabilisation, and is able to offer highly precise control, large-range sway maneuver, flexible orbit maneuver, highly integrated housekeeping and highly effective power supply.
This platform has already been successfully applied in several Chinese small satellites, including the OceanSat-1A, 1B and Huanjing-A, B satellites, and its performance and reliability have proven to be excellent.
Technical Specifications
| No. |
Item |
Details |
| 1 |
Orbit type |
Low, Medium, High |
| 2 |
Service life span |
≥ 3 years |
| 3 |
Attitude Measurement Accuracy |
≤ 0.03° (3 sigma) |
| 4 |
Attitude Control Accuracy |
≤ 0.1° (3 sigma) |
| 5 |
Attitude Stability |
≤ 0.001°/s (3 sigma) |
| 6 |
Solar Array Output Power |
≥ 1 KW (BOL)
≥ 900W (EOL) |
| 7 |
Bus Mass |
200-400kg |
| 8 |
Payload Capability |
300-600kg |
| 9 |
Attitude Control Mode |
3-axis Stabilisation,
Sway Maneuver Capability |
| 10 |
Areas of Application |
- Earth Observation
- Technology Demonstration
- Scientific Exploration
- Earth Environmental Exploration
- Meteorological Research and Application
- Communications
- Navigation
|
China Disaster and Environment Monitoring and Forecasting:Small Satellite Constellation
China's Small Satellite Constellation for Environment and Disaster Monitoring was approved by the State Department in 2003, and will be deployed in two stages. The first stage comprises three SAR satellites: Huanjing-A, B and C. The second stage will see the deployment of a further 8 satellites: 4 optical satellites and 4 SAR satellites.
The Huanjing-A and B satellites are important parts of the constellation. Both satellites were manufactured by China Spacesat Co. Ltd., and were successfully launched in September 2009.
Both satellites are compact optical satellites. With a lifespan of more than three years, they are equipped with state-of-the-art imaging systems and infrared cameras, and provide a global scan every two days.
The satellites can closely monitor natural disasters, and provide rapid assessments of damage as a guide to rescue and reconstruction efforts. The satellites provide unparalleled monitoring of the environment in terms of scale, speed and ability to operate regardless of weather.
China's Three-Dimensional Oceanographic System
China is gradually developing a three-dimensional oceanographic system incorporating three different systems operating over 5 oceanographic satellites. These satellites will comprise three satellite systems, covering ocean colour, ocean dynamic environment and oceanography.
The OceanSat-1A and 1B satellites, both of which were developed and manufactured by China Academy of Space Technology (CAST), were successfully launched in May 2002 and April 2007 respectively.
The Haiyang-1A and 1B satellites are a major part of China's 3-D oceanographic system. The satellites are mainly used for monitoring water colour, water environment and temperatures, and will be used in the development and application of China's ocean biological resources, the construction and management of river mouths and harbours, the monitoring and prevention of marine pollution, the exploration and development of coastal resources, as well as research into global environment changes.
