Session
Technical Session IX: Mission Enabling Technologies I
Abstract
The Pico Star Tracker ST-200 under development by Berlin Space Technologies GmbH (BST) is specifically designed keeping the limitations of CubeSats in mind. It comes in a compact 29x29x37mm³ package. It weights 74g and has a power consumption of 220mW average (620mW peak). The ST-200 offers a set of standard interfaces (I²C, SPI, RS485, RS232) and accepts input voltages of 3.3 to 5V. It can detect stars with a limiting magnitude of 6 and has an accuracy of 30 arc seconds (~0.01°). Using its internal star catalogue ST-200 calculates the satellite attitude from lost in space solution and delivers the Euler angles or quaternion with an update rate of 5 Hz in tracking mode. The ST-200 is based on 20 years of star tracker development in Berlin including TUBSAT missions and multiple international customers. It is the successor of the Micro Star Tracker ST-100 developed by BST. For the electronics miniaturization as well as the implementation of new strategies for star tracker with ultra low power and low mass BST cooperates with Syspa B.V. of the Netherlands
Presentation Slides
Development of the Pico Star Tracker ST-200 – Design Challenges and Road Ahead
The Pico Star Tracker ST-200 under development by Berlin Space Technologies GmbH (BST) is specifically designed keeping the limitations of CubeSats in mind. It comes in a compact 29x29x37mm³ package. It weights 74g and has a power consumption of 220mW average (620mW peak). The ST-200 offers a set of standard interfaces (I²C, SPI, RS485, RS232) and accepts input voltages of 3.3 to 5V. It can detect stars with a limiting magnitude of 6 and has an accuracy of 30 arc seconds (~0.01°). Using its internal star catalogue ST-200 calculates the satellite attitude from lost in space solution and delivers the Euler angles or quaternion with an update rate of 5 Hz in tracking mode. The ST-200 is based on 20 years of star tracker development in Berlin including TUBSAT missions and multiple international customers. It is the successor of the Micro Star Tracker ST-100 developed by BST. For the electronics miniaturization as well as the implementation of new strategies for star tracker with ultra low power and low mass BST cooperates with Syspa B.V. of the Netherlands
