Investigating Space Radiation Environment Effects on Communication of Razaksat-1

Suparta, Wayan; Zulkeple, Siti Katrina

doi:10.5028/jatm.v10.815

Cited by 6 publications

(3 citation statements)

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“…The rest of the publications found from the SCOPUS database discuss mainly various technical issues, such as the attitude position of Earth-centered inertia (Hasan et al, 2015;Cherd et al, 2015;Hamzah et al, 2015;Hamzah et al, 2016;Hazadura et al, 2021), ground communication system during the satellite tracking operation and maintenance works (Theng and Salim, 2014), anomalies due to the space radiation environment which led to the malfunction of RazakSAT™ (Theng and Salim, 2014;Suparta and Zulkeple, 2018) rain attenuation of reflectivity (Badron et al, 2016;Badron et al, 2015), free space path attenuation (Yaccop et al, 2016), geometric and radiometric properties of the sensor Dibs et al, 2015;) and processing for feature extraction from the data (Dibbs et al, 2022). This is understandable as the satellite had various technical problems that warrant particular attention for future design and launch of RazakSAT 2.…”

Section: Application Of Tingsat and Razaksat Datamentioning

confidence: 99%

Small Remote Sensing Satellites of Malaysia: Past Experience and Future Direction

Kanniah

2023

JAGST

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Small remote sensing satellites offer cost-effective ways to monitor and map the Earth. The low cost involved in developing and launching small satellites allowed developing countries like Malaysia to own small satellites. Malaysia launched two small satellites (TiungSAT-1 and RazakSATTM) in 2000 and 2009, respectively. The satellites captured several hundred scenes before their operation ended unexpectedly due to electrical power problems and onboard computer malfunction. The government undertook various efforts to rectify the technical issues related to the remote sensing digital data and explore the potential applications of the datasets. However, no synthesis documents are available on the potential applications of the data by considering the satellites’ launch and image acquisition capabilities. A review of the small satellites’ technical competencies and possible applications is critical in designing future satellites. This review article aims to synthesize available literature on the potential application of Malaysia’s small satellites. The review results show that both satellites have a high potential for earth resources evaluation and planning. However, the coarse spatial resolution and limited spectral bands of TiungSAT may have limited applications. RazakSAT™ data, on the other hand, are proven helpful in land use and utility planning in cities. Unfortunately, the multi-temporal data of RazakSAT™ were not processed to study environmental disasters such as floods or landslides in cities. Like TiungSAT-1, RazakSAT™ images have only four spectral bands that may limit their application for land cover classification and vegetation studies. Nevertheless, no successor satellites have been launched yet to overcome the technical and application issues found in TiungSAT-1 and RazakSAT satellites. The recently initiated public-private partnership in developing the space sector in Malaysia is expected to produce and launch more remote-sensing microsatellites in the near future.

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Section: Application Of Tingsat and Razaksat Datamentioning

confidence: 99%

Small Remote Sensing Satellites of Malaysia: Past Experience and Future Direction

Kanniah

2023

JAGST

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“…Other than factors of competency and transparency, the failure was suspected because of the space radiation due to the single-event upsets (SEU) categorized under single-event effects phenomena [6]. Space radiation is not equal to the kinds of radiation we experience here on Earth [7], [8].…”

Section: Introductionmentioning

confidence: 99%

Intelligent read-out circuit for space radiation detection

Aziz

Toha

Hanifah

et al. 2021

IJEECS

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<span lang="EN-MY">In the design of the satellite system, space radiation is among the important factors that need to be taken care of as it may contribute to system failure. This research aims to design and implement an intelligent read-out circuit to detect the level of radiation. It has the capability to measure the level of radiation. The capability of the designed device to measure the level of radiation and also the type of radiation exposure are the key components to be considered in the design of the system. In this research, the intelligent read-out circuit has been successfully designed and tested to detect the level of radiation. The results show the capability of the system to measure the level of radiation and determine the status of radiation level using both visual and sound indicators. The designed system is able to determine the level of radiation in a short time and strengthen by the danger-alert mechanism present in the system</span><span lang="EN-US">.</span>

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“…The outer space is known to be dense with high-energy particles such as protons, electrons, neutrons, and heavy ions. When these high-energy particles collide with optoelectronic devices, they cause irreversible damage to the devices' materials, resulting in substantial performance decline and even malfunction [12,13]. In 2010, Malaysia launched Razak Sat 1, a satellite equipped with a high-resolution camera for land management, resource development, and forestry, into Near Equatorial Low Earth Orbit.…”

Section: Introductionmentioning

confidence: 99%

Induced electron radiation effect on the performance of inter-satellite optical wireless communication

et al. 2021

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This paper provides the details of a study on the effects of electron radiation on the Performance of Inters-satellite Optical Wireless Communication (IsOWC). Academia and industry focus on solutions that can improve performance and reduce the cost of IsWOC systems. Spacecraft, space stations, satellites, and astronauts are exposed to an increased level of radiation when in space, so it is essential to evaluate the risks and performance effects associated with extended radiation exposures in missions and space travel in general. This investigation focuses on LEO, especially in the near-equatorial radiation environment. Radiation experiments supported with simulations have made it possible to obtain and evaluate the electron radiation impact on optoelectronics at the device level and system level performances. The electron radiation has induced a system degradation of 70%. This result demonstrates the importance of such an investigation to predict and take necessary and suitable reliable quality service for future space missions.

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Investigating Space Radiation Environment Effects on Communication of Razaksat-1

Cited by 6 publications

References 0 publications

Small Remote Sensing Satellites of Malaysia: Past Experience and Future Direction

Small Remote Sensing Satellites of Malaysia: Past Experience and Future Direction

Intelligent read-out circuit for space radiation detection

Induced electron radiation effect on the performance of inter-satellite optical wireless communication

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