NSSDC

NASA's Space Science Data Center

OPEN

Origin of Plasmas in the Earth's Neighborhood

PI

principal investigator

PPARC

Particle Physics and Astronomy Research Council (United Kingdom)

PPL

Polar Plasma Laboratory

PV

performance verification

RAL

Rutherford Appleton Laboratory (United Kingdom)

ROSAT

Roentgen Satellite

SAC

Space Activities Commission (Japan)

SCOSTEP

Scientific Committee on Solar-Terrestrial Physics

SERC

Science and Engineering Research Council (United Kingdom)

SIS

solid-state imaging spectrometer

SMM

Solar Maximum Mission

SOHO

Solar and Heliospheric Observatory SR&T supporting research and technology

SRC

Space Research Committee (Japan)

SSB

Space Studies Board (United States)

SSOC

Sagamihara Spacecraft Operation Center (Japan)

STS

Space Transportation System

SWG

science working group

SXO

Spectroscopic X-Ray Observatory

SXT

soft X-ray telescope

TRACE

Transition Region and Coronal Explorer

WBS

wideband spectrometer

WG

working group

XRT

X-ray telescope



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