FTPWeb Browser
to select different options to produce plots, listings or output files.
Electron temperature and density from Explorer 31 (DME-A)

This home page provides access to data set which includes the archived data from the Cylindrical Electrostatic Probe (CEP) experiment on the Explorer 31 satellite. It was launched on 1965-11-29 into an elliptical orbit (500 km-3000km) with an inclination of 79.8 degrees.
ASCII data set also contains needed spacecraft position data, IGRF model parameters, and indices.

Time Resolution:1-5 Minutes

This data set and its description placed at SPDFFTP's anonymous FTP site nssdc.gsfc.nasa.gov in directory ftp://spdf.gsfc.nasa.gov/pub/data/explorer/explorer31/plasma_cep/

Time span of the data set: 1965-10-29 to 1968-08-20

Please enter your selections and then click on the Submit button.

*Select an activity
    Plot data List data Create file

* Enter start and stop dates: year,month,day(YYYYMMDD)
   Start time    Stop time

*Select variables

 Local Time
 Geodetic Latitude of the Spacecraft, Degrees
 Geodetic Longitude of the Spacecraft, Degrees
 Geomagnetic Latitude of the Spacecraft, Degrees
 Geomagnetic Longitude of the Spacecraft, Degrees
 Altitude,km
 Dip Latitude, Degrees
 Magnetic inclination (dip), Degrees
 B, Magnetic field strength, 1/100 Gauss 
 L, Invariant Latitude, Degrees, +/-90
 Quality Code for L value
 ZSUN, Solar Zenith Angle, Degrees, 0-180
 ap indices (daily) 
 kp indices (3 hour) 
 F10.7 (solar radio flux, daily)
 Sunspot number (daily)
 Orbit number
 Electron Temperature,K 
 Electron Density (cm-3)
 Satellite potential (mV)


*Advanced plot selections (optional)
Max days/panel:(1-30) Y-axis Scale:
View Mode: Connect Type:
Paper: Character size(0.5-2.0):
X-Axis style: Y-Axis style:
Plot Symbol: Symbol Size(0.1-4.0):
Color Table(0-40): Image size (pixels): X: Y:
Foreground Color Index: (0-255) Background Color Index: (0-255)


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

NASA Official: Dr. Robert McGuire, Head of the Space Physics Data Facility