|Operator||SERC / NASA|
|Manufacturer||Goddard Space Flight Center|
|Launch mass||130.5 kg (288 lb)|
|Start of mission|
|Launch date||15 October 1974, 07:47:00UTC|
|Launch site||San Marco|
|End of mission|
|Decay date||14 March 1980|
|Perigee altitude||512 km (318 mi)|
|Apogee altitude||557 km (346 mi)|
|Epoch||14 October 1974, 23:00:00 UTC|
|Rotation Modulation Collimator (RMC)|
2- to 10-KeV Sky Survey Instrument (SSI)
High-Resolution Source Spectra
Bragg Crystal Spectrometer (BCS)
High-Energy Cosmic X-Ray Spectra
Ariel 5 was a joint British and American space telescope dedicated to observing the sky in the X-ray band. It was launched on 15 October 1974 from the San Marco platform in the Indian Ocean and operated until 1980. It was the penultimate satellite to be launched as part of the Ariel programme. It was designed to fit a resource budget of 2 kg, 1 bit per second, and 1 W.
The All-sky monitor (ASM) was two one-dimensional pinhole cameras scanned most of the sky every spacecraft revolution. The angular resolution was 10 x 10°, with an effective area of 3 cm2 (0.465 sq in), and a bandpass of 3–6 keV.
The SSI had an angular resolution of 0.75 x 10.6°, with an effective area of 290 cm2 (45 sq in), and a bandpass of 2–20 keV.
- Smith, J. F. "The Ariel 5 Programme". Courtier, G. M. (contributing). Royal Society.
- "HEASARC: Observatories - The Ariel V Satellite". NASA. Retrieved 3 March 2008.
- Priedhorsky WC; Holt SS (1987). "Long-term cycles in cosmic X-ray sources". Space Sci Rev. 45 (3–4): 291–348. Bibcode:1987SSRv...45..291P. doi:10.1007/BF00171997.
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