Uhuru
(X-ray Explorer Satellite, SAS-A, SAS 1, Explorer 42, Small Astronomical Satellite 1)
(1970 X-ray space telescope)
Uhuru (aka SAS 1 and SAS-A)
was a space-based X-ray telescope
launched by NASA in 1970 for a 3-year mission,
surveying the sky at a 30-arcminute angular resolution,
sensitive to about
1.5 × 10-18joule/cm2/sec,
covering a photon energy range of 2-20 keV.
It was the first in a series of three 1970s NASA satellites called
the Small Astronomical Satellite program.
(X-ray,telescope,spacecraft,NASA,past)
Further reading:
https://en.wikipedia.org/wiki/Uhuru_(satellite)
https://heasarc.gsfc.nasa.gov/docs/uhuru/uhuru.html
https://heasarc.gsfc.nasa.gov/W3Browse/uhuru/uhuru4.html
https://ui.adsabs.harvard.edu/abs/1972ApJ...178..281G/abstract
https://ui.adsabs.harvard.edu/abs/1974ApJS...27...37G/abstract
https://ui.adsabs.harvard.edu/abs/1978ApJS...38..357F/abstract
| WaveL | Freq | Photon
Energy | | |
| 62nm | 4.9PHz | 20eV | begin | Uhuru |
| 620nm | 484THz | 2eV | end | Uhuru |
|
| Prefix | Example | | |
| 2U | 2U 1957+40 | Second Catalog | |
| 3U | 3U 1044-30 | Third Catalog | |
| 4U | 4U 0241+61 | Fourth Catalog | |
|
Referenced by pages:
SMC X-1
X-ray
Index