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Astronomische Nederlandse Satelliet (ANS)
stronomische Nederlandse Satelliet (ANS)
was launched by a American Scout rocket from the Western Test Range,
California, on August 30 1974 into a polar orbit. It was a collaborative effort
between the Netherlands (NIVR) and USA (NASA).
The University of Groningen and Utrecht (Netherlands) provided the
Ultraviolet and the Soft X-ray experiments, the American
Science and Engineering provided the hard X-ray experiment.
Mission Characteristics
 Lifetime :
30 August 1974 - 14 June 1977
Energy Range :
0.1 - 30 keV (X-ray) 1500-3300 (UV)
Payload :
- Ultraviolet experiment (1500-3300 Angstrom)
- Soft X-ray experiment (SXX) composite of two parts
- Parabolic mirror (eff area=144 cm2)
with a small area proportional counter on the focal plane
0.16-0.28 keV 34´ FOV
- Proportional counter 1-7 keV
eff area=45 cm2 38´ X 75´ FOV
- Hard X-ray experiment (HXX) composite of two parts
- LAD 10´ x 3° FOV 1-30 keV eff
area=40cm2
- Bragg Crystal Assembly (BCA) to search for Si lines
Science Highlights:
- Discovery of the X-ray bursts
- Detection of X-ray from Stellar Coronae (Capella)
- First detection of X-ray flares from UV Ceti and YZ CMi
Archive : No data available at HEASARC
[About ANS] (http://heasarc.gsfc.nasa.gov/docs/ans/ans_about.html)
[Gallery] (http://heasarc.gsfc.nasa.gov/docs/ans/ans_images.html)
[Publications] (http://heasarc.gsfc.nasa.gov/docs/ans/bib/ans_biblio.html)
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