Ms. Fatima Alketbi Profile

Fatima Alketbi

at Sharjah Academy for Astronomy, Space Sciences & Technology

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Author

Publications (5)

Proceedings Article | 14 June 2023 Presentation + Paper

Monitoring and validation of GNSS signal's integrity using Sharjah-Sat-2 microsatellite

Yousuf Faroukh, Abdollah Masoud Darya, Maryam Sharif, Maryam Alansari, Tarifa Al-Kaabi, Mohammed Bin-Ashour, Amal Al-Hammadi, Fatima Alketbi, Ilias Fernini, Hamid Al Naimiy

Proceedings Volume 12546, 125460L (2023) https://doi.org/10.1117/12.2663493

KEYWORDS: Satellite navigation systems, Receivers, Scintillation, Satellites, Radio astronomy, Aerospace engineering, Hyperspectral imaging, Space weather, Electrons, Design and modelling

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Proceedings Article | 14 June 2023 Presentation + Paper

Utilization of Sharjah-Sat-1 improved x-ray detector for space situational awareness

Tarifa Al-Kaabi, Yousef Faroukh, Maryam Alansari, Fatima Alketbi, Amal Alhammadi, Mohammed Bin-Ashour, Maryam Sharif, Ilias Fernini, Hamid Al Naimiy

Proceedings Volume 12546, 125460M (2023) https://doi.org/10.1117/12.2663509

KEYWORDS: Space weather, X-ray detectors, Satellites, Space operations, Situational awareness sensors, Aerospace engineering, Solar processes, Atmospheric particles, X-rays, Sun

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Proceedings Article | 13 June 2023 Presentation + Paper

Sharjah-Sat-2: a low-cost high-resolution Earth observation microsatellite

Yousuf Faroukh, Tarifa Al-Kaabi, Maryam Alansaari, Fatima Alketbi, Maryam Sharif, Mohammed Bin-Ashour, Amal Alhammadi, Ilias Fernini, Hamid Al Naimiy

Proceedings Volume 12519, 125190K (2023) https://doi.org/10.1117/12.2663502

KEYWORDS: Satellites, Imaging systems, Hyperspectral imaging, Aerospace engineering, Observational astronomy, Ocean optics, Temporal resolution, Industrial applications, Design and modelling, Cameras

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Proceedings Article | 29 August 2022 Presentation + Paper

Design, testing, and validation of a space-based improved x-ray detector onboard Sharjah-Sat-1

Yousuf Faroukh, Tarifa Alkaabi, Emrah Kalemci, Ibrahim Al-Sabt, Mohamed BinAshour, Ali Murteza Altingun, Kaya Gokalp, Refik Yalcin, Fatima Alketbi, Amel Alhammadi, Maryam Alansaari, Bogac Karabulut, Egemen Çatal, Ilias Fernini, Alim Aslan, Hamid M. Al-Naimiy

Proceedings Volume 12191, 121910J (2022) https://doi.org/10.1117/12.2628134

KEYWORDS: Crystals, Sensors, X-ray detectors, Collimators, Calibration, Satellites, Aerospace engineering, Astronomy, Tungsten, Space operations

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Sharjah-Sat-1 is currently being developed as a collaborative research project between the Sharjah Academy for Astronomy, Space Sciences, and Technology (SAASST), the University of Sharjah, Istanbul Technical University, and Sabanci University. A 3U CubeSat design has been adopted with a dual payload onboard: (i) the improved X-ray Detector (iXRD) and (ii) a system of two optical cameras. The mission's primary scientific target is the observation of bright, hard X-ray sources in our Galaxy and the solar coronal holes. The paper discusses a high-level design, testing, and validation of the mission's primary science payload. The iXRD (Improved X-ray Detector) is equipped with a pixelated CdZnTe-based crystal as the active detection material and a Tungsten collimator with a field of view of 4.26 degrees. The detection range is from 20 to 200 keV with a target spectral resolution of 6 keV at 60 keV. The paper will cover a high-level design of the iXRD, environmental testing performed on the detector such as thermal-vacuum and vibration testing, anSharjah-Sat-1 is currently being developed as a collaborative research project between the Sharjah Academy for Astronomy, Space Sciences, and Technology (SAASST), the University of Sharjah, Istanbul Technical University, and Sabanci University. A 3U CubeSat design has been adopted with a dual payload onboard: (i) the improved X-ray Detector (iXRD) and (ii) a system of two optical cameras. The mission's primary scientific target is the observation of bright, hard X-ray sources in our Galaxy and the solar coronal holes. The paper discusses a high-level design, testing, and validation of the mission's primary science payload. The iXRD (Improved X-ray Detector) is equipped with a pixelated CdZnTe-based crystal as the active detection material and a Tungsten collimator with a field of view of 4.26 degrees. The detection range is from 20 to 200 keV with a target spectral resolution of 6 keV at 60 keV. The paper will cover a high-level design of the iXRD, environmental testing performed on the detector such as thermal-vacuum and vibration testing, and calibrating the detector.

Proceedings Article | 29 August 2022 Poster + Paper

Development of a novel optical camera subsystem onboard Sharjah-Sat-1 CubeSat

Onur Oztekin, Tarifa Alkaabi, Yousuf Faroukh, Ibrahim Al-Sabt, Mohammed BinAshour, Maryam Alansaari, Fatima Alketbi, Amel Alhammadi, Bogac Karabulut, Egemen Çatal, Ilias Fernini, Alim R. Aslan, Hamid M. K. Al-Naimiy

Proceedings Volume 12188, 121882M (2022) https://doi.org/10.1117/12.2629356

KEYWORDS: Cameras, Computer aided design, Imaging systems, Satellites, Sensors, Aerospace engineering, Lenses, Calibration, Optics manufacturing, Modulation transfer functions, Systems engineering, Space telescopes

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