This survey comprises the compressed digitization of the Southern Sky
Survey and the Palomar Sky Survey E plates as distributed on CD ROM
by the Space Telescope Science Institute. Coverage of the entire
sky is included.
This survey consists of the digititized Southern Sky Survey conducted
at the UK Southern Schmidt Survey Group by the Royal Observatory, Edinburgh
(prior to 1988) and the Anglo-Australian Observatory (since 1988)
Additional plates covering regions with bright objects are also
included.
The plates were digitized at the Space Telescope Science Institute
and compressed using algorithms developed by R.White. These
data are distributed on a set of 101 CD-ROMs.
<P>
The following data are included:
<DL>
<DT>Southern hemisphere
<DD>
SERC Southern Sky Survey and the SERC J Equatorial extension.
These are typically deep, 3600s, IIIa-J exposures with a GG395 filter.
Also included are 94 short (1200s) V exposures typically at Galactic
latitudes below 15&#176;;. Special exposures are included in
the regions of the Magellenic clouds.
<DT>Northern hemisphere
<dd> The northern hemisphere is covered by 644 plates from the POSS E
survey. A special exposure of the M31 region that is distributed on
the CD ROMs is not used in <i> SkyView </i>.
</DL> Provenance: Data taken by ROE and AAO, CalTech, Compression
and distribution by Space Telescope Science Institute.. This is a service of NASA HEASARC.
This database accesses the FITS lightcurves obtained from the A detector part of the GSFC Cosmic X-ray Spectroscopy experiment (GCXSE) on board OSO8. The Orbiting Solar Observatory-I (OSO-8) was launched on 21 June 1975 into a 550 km circular orbit at 33 degrees inclination. While the primary objectives of the mission were solar in nature, there were 3 detectors (the GCXSE detectors A, B and C) which had exclusively non-solar objectives. The energy band was 2-60 keV for the A and C detector and 2-20 keV for the B detector. The spacecraft structure consisted of a rotating cylindrical base section called the "wheel" and a non-spinning upper section called the "sail". The GCXSE detectors were mounted in the rotating wheel and their fields-of-view were either aligned to the spin axis (B and C) or at small angles to it (A), hence they always viewed the portion of the sky at right angles to the earth-sun line. The GCXSE detectors obtained data until late September 1978. This is a service provided by NASA HEASARC .
The Orbiting Solar Observatory-I (OSO-8) was launched on 21 June 1975 into a 550 km circular orbit at 33 degrees inclination. Data were obtained from the mission until late September 1978. The spacecraft structure consisted of a rotating cylindrical base section called the "wheel" and a non-spinning upper section called the "sail". While the primary objectives of the mission were solar in nature, there were 3 detectors, the GSFC Cosmic X-ray Spectroscopy experiments (GCXSE detectors A, B, and C), mounted in the rotating wheel which had exclusively non-solar objectives. Their fields-of-view were either aligned to the spin axis or at small angles to it, hence they always view the portion of the sky at right angles to the earth-sun line. This database accesses the pha FITS datafiles for the A, B, and C GCXSE detectors. Data was accumulated every quarter of a rotation period (~2.56 s) for the A detector and every 40.96 s for the B and C detectors in the 2-60 keV energy band. This is a service provided by NASA HEASARC .
The Orbiting Solar Observatory-I (OSO-8) was launched on 21 June 1975 into a 550 km circular orbit at 33 degrees inclination. Data were obtained from the mission until late September 1978. The spacecraft structure consisted of a rotating cylindrical base section called the "wheel" and a non-spinning upper section called the "sail". While the primary objectives of the mission were solar in nature, there were 3 detectors, the GSFC Cosmic X-ray Spectroscopy experiments (GCXSE detectors A, B and C), mounted in the rotating wheel which had exclusively non-solar objectives. Their fields-of-view were either aligned to the spin axis or at small angles to it, hence they always view the portion of the sky at right angles to the earth-sun line. This database accesses the raw rates FITS datafile for the A, B and C GCXSE detectors, accumulated every 160 ms in the 2-60 keV energy band. This is a service provided by NASA HEASARC .