SI-200
Encyclopedia
The SI-200 satellite bus
was a model of satellite, based on the Malaysian RazakSAT
, produced by the South Korea
n Satrec Initiative. The bus was suitable for small satellites where the accommodation of Earth observation
or other scientific payloads is required, and was used on the Emirati
remote sensing
satellite
DubaiSat-1
launched in 2009.
Satellite bus
A satellite bus or spacecraft bus is the general model on which multiple-production satellite spacecraft are often based. The bus is the infrastructure of a spacecraft, usually providing locations for the payload .They are most commonly used for geosynchronous satellites, particularly...
was a model of satellite, based on the Malaysian RazakSAT
RazakSAT
RazakSAT is a Malaysian satellite carrying a high-resolution camera. It was launched into low Earth orbit by a Falcon 1 rocket on July 14, 2009. It was placed into a near-equatorial orbit that presents many imaging opportunities for the equatorial region.It weighs over three times a much as...
, produced by the South Korea
South Korea
The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...
n Satrec Initiative. The bus was suitable for small satellites where the accommodation of Earth observation
Earth observation
Earth observation is the gathering of information about planet Earth’s physical, chemical and biological systems. It is used to monitor and assess the status of, and changes in, the natural environment and the built environment. In recent years, Earth observation has become technologically more and...
or other scientific payloads is required, and was used on the Emirati
United Arab Emirates
The United Arab Emirates, abbreviated as the UAE, or shortened to "the Emirates", is a state situated in the southeast of the Arabian Peninsula in Western Asia on the Persian Gulf, bordering Oman, and Saudi Arabia, and sharing sea borders with Iraq, Kuwait, Bahrain, Qatar, and Iran.The UAE is a...
remote sensing
Remote sensing
Remote sensing is the acquisition of information about an object or phenomenon, without making physical contact with the object. In modern usage, the term generally refers to the use of aerial sensor technologies to detect and classify objects on Earth by means of propagated signals Remote sensing...
satellite
Satellite
In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavour. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon....
DubaiSat-1
DubaiSat-1
DubaiSat-1 is an Emirati remote sensing satellite which is being operated by the Emirates Institution of Advanced Science and Technology. It was constructed by the Satrec Initiative, based on the SI-200 satellite bus....
launched in 2009.
Features
- Three-axis stabilized, accurate and agile attitude control for precise imaging operations.
- Dual redundancies are adapted where necessary in the system architecture design to increase reliability of the satellite system.
- Dimensions: 1.2 m in diameter and 1.35 m in height.
- Deck-and-longeron type structure permitting easy assembly and disassembly. The interface with the launch vehicle is made through an adapter bolted to the bottom of the structure. The mechanical interface with the electro-optical payload is provided through three points at the satellite middle deck.
| Parameter | Feature | Remarks |
|---|---|---|
| Mass | < 200 kg | |
| Volume | Ø 1,200 x 1,250 mm | Hexagonal |
| Power Generation | 330 W @ EOL | 3 deployable panels |
| Attitude Control | 3-axis stabilized | |
| TT&C Link | S-band | |
| Data Link | X-band | QPSK |
| Lifetime | 5 years | |