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Opis

Space Situational Awareness (SSA) requires repeated object updates for orbit accuracy. Detection of unknown objects is critical. A daytime model was developed that evaluated sun flares and assessed thermal emissions from space objects. Iridium satellites generate predictable sun glints. These were used as a model baseline for daytime detections. Flares and space object thermal emissions were examined for daytime detection. A variety of geometric, material and atmospheric characteristics affected this daytime detection capability. In a photon noise limited mode, simulated Iridium flares were detected. The peak Signalto- Noise Ratios (SNR) were 6.05e18, 9.63e5, and 1.65e7 for the nighttime, daytime and infrared flares respectively. The thermal emission of space objects at 353K, 900K and 1300K with 2 to 20 m2 emitting areas were evaluated. The peak emission was for the 20 m2 900K object with an SNR of 1.08e10.

Szczegóły książki

Kategoria Książki po angielsku Society & social sciences Education

• Pełny tytuł: Daytime Detection of Space Objects
• Autor: Alistair D Funge
• Język: Angielski
• Oprawa: Miękka
• Liczba stron: 110
• EAN: 9781249830498
• ISBN: 9781249830498
• ID: 08143301
• Wydawca: Biblioscholar
• Waga: 213 g
• Wymiary: 246 × 189 × 6 mm
• Data wydania: 17. October 2012

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