The different models of star trackers(such as Pico,Nano,and Micro)are mainly classified based on their size,weight,performance,and application scenarios.These models are usually designed to adapt to different types of satellites and mission requirements.The following is a detailed description of the differences and features of these three models:
Size:Very small,usually a few centimeters square.
Weight:Extremely light,usually within a few tens of grams.
Power consumption:very low,suitable for small satellites with limited power resources.
Accuracy:Low,generally between tens of arc seconds and a few arc minutes.
Data processing:Basic real-time data processing capability,usually relying on satellite main systems for further processing.
CubeSat:Especially CubeSat with sizes ranging from 1U to 3U.
Small research satellites:research tasks with limited budget and space.
Technical validation:An experimental satellite used to validate new technologies.
Size:Small,usually ranging from a few centimeters to a dozen centimeters square.
Weight:Light,usually between 100g and 500g.
Power consumption:low,suitable for the power budget of small satellites.
Accuracy:Medium,generally between a few arc seconds to several tens of arc seconds.
Data processing:Possess basic real-time data processing capabilities and can independently complete some data processing tasks.
Small satellites:such as CubeSat from 6U to 12U and other small satellites.
Commercial remote sensing satellites:commercial tasks that require medium precision attitude control.
Research task:A research satellite with certain accuracy and reliability is required.
Size:Medium to small,usually measuring tens of centimeters square.
Weight:Medium,usually around a few hundred grams to one kilogram.
Power consumption:Medium,suitable for the power budget of larger satellites.
Accuracy:High,generally between sub arc seconds and a few arc seconds.
Data processing:With advanced data processing capabilities,it can independently complete most data processing tasks and provide high-precision attitude information.
Medium sized satellites:such as satellites weighing around 100 kilograms,or larger satellites with certain weight and volume limitations.
Earth observation satellites:remote sensing tasks that require high-precision attitude control.
Scientific satellite:a scientific research task that requires high precision in attitude control.
Commercial communication satellites:Tasks that require precise attitude control to ensure stable communication links.
Pico star tracker:extremely small,lightweight,low power consumption,suitable for micro and cubic satellites,with low accuracy.
Nano star tracker:small,lightweight,low power consumption,suitable for small satellites and commercial applications,with moderate accuracy.
Micro star tracker:Medium to small size,moderate weight,moderate power consumption,suitable for medium-sized satellites and high-precision missions,with high accuracy.
These different models of star trackers meet the needs of different types of satellites and missions by optimizing size,weight,power consumption,and accuracy,ensuring efficient attitude control in various complex space environments.
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TY-Space Technology (Beijing) Ltd. is professional focusing on advanced attitude optical sensors, especially Star Trackers for space industry.
