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The HEASARC and NuSTAR teams are greatly saddened by the sudden passing of Katja Pottschmidt. Most recently Katja was the lead scientist for the NuSTAR Guest Observer Facility (GOF), a role she had supported for many years. During her science career she worked on many other high energy astrophysics missions and played an integral role in advancing our knowledge of the universe. She was a wonderful colleague and friend and will be keenly missed by all who knew her.

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This Legacy journal article was published in Volume 4, February 1994, and has not been updated since publication. Please use the search facility above to find regularly-updated information about this topic elsewhere on the HEASARC site.
Table 3

Prefixes for multiples & submultiples allowed within OGIP datasets & software 

Submultiple    Prefix     Character       Multiple      Prefix       Character

  10-1      deci         d              10           deca            da
  10-2      centi        c              102            hecto           h
  10-3      milli        m              103    kilo            k
  10-6      micro        u              106    mega            M
  10-9      nano         n              109            giga            G
  10--12    pico         p              1012   tera            T
  10-15     femto        f              1015   peta            P
  10-18     atto         a              1018   exa             E
  10--21    zepto        z              1021   zetta           Z
  10-24     yocto        y              1024   yotta           Y