A1: Large-Area Sky Survey Instrument
The A1, or Large-Area Sky Survey (LASS) instrument, covered the 0.25—25 keV energy range, using seven large proportional counters. It was designed, operated, and managed at the Naval Research Laboratory (NRL) under the direction of Principal Investigator Dr. Herbert D. Friedman, and the prime contractor was TRW. The HEAO A-1 X-Ray Source Catalog included 842 discrete X-ray sources.
Read more about this topic: High Energy Astronomy Observatory 1
Famous quotes containing the words sky, survey and/or instrument:
“He brushed away the thunder, then the clouds,
Then the colossal illusion of heaven. Yet still
The sky was blue.”
—Wallace Stevens (1879–1955)
“By contrast with history, evolution is an unconscious process. Another, and perhaps a better way of putting it would be to say that evolution is a natural process, history a human one.... Insofar as we treat man as a part of nature—for instance in a biological survey of evolution—we are precisely not treating him as a historical being. As a historically developing being, he is set over against nature, both as a knower and as a doer.”
—Owen Barfield (b. 1898)
“Since body and soul are radically different from one another and belong to different worlds, the destruction of the body cannot mean the destruction of the soul, any more than a musical composition can be destroyed when the instrument is destroyed.”
—Oscar Cullman. Immortality of the Soul or Resurrection of the Dead? The Witness of the New Testament, ch. 1, Epworth Press (1958)