San Marco EFI AC Data 

NSSDC-ID: 88-026A-05A

This San Marco D/L Electric Field Experiment (EFI) data set was provided 
by the PI team on 12 magnetic tapes in ASCII format and constitutes the 
final EFI archiving product (filename: yymmddhhmm.ac). The data from the
first tape are available online in this directory.  
The data set contains variational (AC) electric fields averaged at 0.5 
second intervals for all channels of each of the three spectrometers and 
some orbital parameters such as the altitude of the satellite, the 
geographic longitude and latitude, the local solar time and the dip 
latitude, and a day/night flag for the DC data. More details can be found 
in the acformat_sfdu.txt and the voldesc_sfdu.txt files. Both of these 
files are ASCII text files.
Further details about the San Marco spacecraft, experiment, and data sets 
can be found at the San Marco home pages 
<http://nssdc.gsfc.nasa.gov/space/space_phys/san.html> (NSSDC)
<http://crpsm.psm.uniroma1.it/> (Rome University, Italy)

Acknowledgement:

Use of these data in publications should be accompanied at minimum by
acknowledgements of the National Space Science Data Center and the 
responsible Principal Investigator.

dieter.bilitza@gsfc.nasa.gov, February 12, 2001