High Resolution Geocoronal Balmer Alpha Observations |
Common terms and phrases
altitude anomalous scans assumption ballistic atoms Bertaux ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc Chamberlain's theory cm-Hg collisional curve decrease density and temperature density of satellite determined distribution function distribution of satellite Doppler Doppler profiles effective temperature equation escape flux escape velocity etalons excitation mechanism exo base exobase temperature exospheric density FUN1 Gaussian fit GEOCENTRIC DISTANCE high altitudes hydrogen temperature hyperbolic atoms IMPLICIT REAL*8 A-H,K-Z incoming atoms instrument profile Jean's escape line of sight line profile line widths low shadow heights Lẞ Maxwell-Boltzmann distribution mean square velocity measured Monte Carlo calculations multiple scattering narrow night nonuniform exobase observed profile orbits parameters perigee perturbation radiation pressure REAL*8 FUNCTION red wing restricted apogee RETURN END right ascension satellite atoms satellite critical level shown in Figure siderostat solar activity spectrometer spherically symmetric Std Dev SUBROUTINE theoretical profile thermosphere thorium thorium line University of Wisconsin-Madison variation velocity distribution vertical Vidal-Madjar wavenumber zenith angle