Integration and Testing of Optical Imaging System for RASAT

Kim, Ee-Eul; Choi, Young‐Wan; Choi, Woong; Kim, Hyun-Gu; Park, Sang-Jin; Yun, Ji-Ho; Kang, Minho; Jeong, Seong-Keun

doi:10.1109/rast.2007.4284037

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…After BILSAT-1, the institute then built its second generation microsatellite, RASAT. Therefore, both microsatellites are used as sample for the University of Surrey design heritage [20][21][22][23].…”

Section: S T Sat-1 S T Sat-3 R Asatmentioning

confidence: 99%

System Designs of Microsatellites: A Review of Two Schools of Thoughts

Robertus¹

2021

Satellite Systems - Design, Modeling, Simulation and Analysis

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Microsatellite has been considered as disruptive technologies in satellite engineering. Its development cost and time provide advantages for new kind of Earth observations, telecommunications, and science missions. The increasing trend of microsatellite launches and operations means that the approach was so successful that it could create funding sustainability. Major contributing factors of its success were due to the system design of the microsatellites. This chapter discusses two microsatellite system design approaches, namely Technical University of Berlin heritage and University of Surrey heritage. Both Universities provide approaches for system design and build of microsatellite systems. The design approaches are being compared along with lessons learned. The choices of microsatellites to be compared in this chapter will be those that are manufactured about the same time such that the technology compared is mostly the same and flown in-orbit. The chapter shows that the differences between the two system design approaches are on the choice of main computer and associated link configuration and in the attitude control modes. Another major different is in the satellites’ structure design. For some satellite’s components, incoming technologies have made the design choices from the two schools of thoughts converged.

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Section: S T Sat-1 S T Sat-3 R Asatmentioning

confidence: 99%

System Designs of Microsatellites: A Review of Two Schools of Thoughts

Robertus¹

2021

Satellite Systems - Design, Modeling, Simulation and Analysis

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“…RASAT's payload camera, as well as magnetometers, magnetorquers, sun sensors and star tracker were procured from Satrec Initiative. The payload camera is capable of receiving images in PAN (7.5m) and RGB (15m) [5]. As for the ground segment, RASAT's mission planning and satellite control software was also developed at TUBITAK UZAY.…”

Section: Introductionmentioning

confidence: 99%

Commissioning of Attitude and Orbit Determination and Control System of RASAT Satellite

Akbaş¹,

Acar²,

Gulmammadov³

et al. 2013

AIAA Guidance, Navigation, and Control (GNC) Conference

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RASAT is the first Earth observation satellite built in Turkey. It was designed, manufactured, integrated and tested almost completely in TUBITAK UZAY facilities. Commissioning is an important challenge of satellite development. Attitude and Orbit Determination and Control System (AODCS) Commissioning of a satellite includes stabilization of the spacecraft as well as functionality verification of all sensors and actuators. During RASAT's commissioning, a gradual stabilization method was employedwhere the number of sensors, actuators and pieces of software being involved is increased with each step. This work describes every phase of the AODCS commissioning procedure as it performed on the days following the launch. It is elaborated on the every estimator and controller being involved as well as the hardware being tested during each stage. The comparison in the procedure between RASAT and its predecessor -BILSAT is also given where applicable. TUBITAK UZAY's first commissioning experience confirms the necessity of thorough hardware in the loop tests and encourages a more automated commissioning procedure.

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