ATMOWeb: Satellite Observations of Ionosphere and Upper Atmosphere


This page lets user list and plot 16-second ionospheric/thermospheric data obtained by NASA's DE-2 spacecraft between August 06, 1981 and February 15, 1983. (spacecraft operations ceased on February 19). The DE-2 orbit was high-inclination and elliptical (300-1000 km).

The user can download daily files in ASCII format from SPDF's anonymnous ftp site in directory spacecraft_data/de/de2/combined_plasma_neutrals_ua/de2_ua/.

Time span of the data set: 1981-08-06 - 1983-02-15

Users may generate time series plots from this page or may generate a scatter plot of any parameter pair by clicking here

Please fill the form below, then click on Submit Query to start operations:

    Plot data* List data Create file (file?)
*Series of plots may be generated; duration of each is changeable below

* Enter start and stop dates and times
[Format: YYYYMMDDHH, Valid range: 1981080600 - 1983021523]
   Start time      Stop time

*Select up to 6 variables

Orbit/Attitude Parameters

Altitude [km]              Latitude [degree]  Longitude [degree]
Local Solar Time [hour]    Local magnetic time [hour]
L-shell parameter [Re]     Invariant Latitude [degree]
Solar zenith angle [degree]Orbit number 

Neutral Atmospheric Composition Spectrometer (NACS)
N2 [cm-3] O [cm-3] He [cm-3] Ar [cm-3] N [cm-3]

Wind and Temperature Spectrometer (WATS)
Neutral temperature [K] Eastward (zonal) neutral wind [m/s] Upward (zonal) neutral wind [m/s]

LANGmuir Probe (LANG)
Electron density [cm-3] Electron temperature [K]

Fabry-Perot Interferometer (FPI)
Wavelength [Angstrom] Tangent altitude [km] Northward neutral wind [m/s] Neutral temperature [K] Intensity [Raleighs]

Retarding Potential Analyzer (RPA) and Ion Drift Meter (IDM)
Ion temperature [K] Total ion density [cm-3] Eastward ion drift [m/s] RPA - IDM Northward ion drift (m/sec) Upward ion drift [m/s]

*Advanced plot selections (optional)
Max hours/panel:(1-24)
Y-axis Scale: Character size(0.5-2.0):
Plot Symbol: Symbol Size(0.1-4.0): Image size (pixels) X: Y:

Send questions about ATMOWeb data to Dr. Dieter Bilitza
Send questions about ATMOWeb system/interface to: Dr. Natalia Papitashvili

NASA Official: Robert Candey (, Head of the Space Physics Data Facility