INFORMATION
AND CAVEATS FOR L1 DATA
Click here to go to L1 Data
directory
Click here for anonymous FTP access
Click here to go to LET L1 Data
Note: This link is for ASCII format files; use the first two links above for CDF files
Click here to go to HET L2 Data
Note: This link is for ASCII format files
Click here for SWEA PAD Data
Our Level 1 files are in the CDF format.
click here for CDF format Documentation.
click here for an on line CDF file translator.
Data is currently released for the following instruments and dates:
SWEA (3D Distributions) - through Apr 30, 2008
LET - through Jan 31, 2008
SEPT - through Jan 31, 2008
MAG - through Jan 31, 2008 - ASCII data is available here. (for CDF use first two links above)
STE - through Apr 30, 2008
SWEA (moments, PADs) - to be released soon
HET - through Sep 30,2007
SIT - from Mar 15, 2007 through Feb 21, 2008
SWEA PADs - from Dec 1, 2006 through Apr 30, 2008
DATA CAVEATS
Right now, all calibrations should be considered preliminary. Check this website
often for updates to these data files.
Caveats regarding specific data sets:
LET - Caveats are discussed here.
SEPT - Caveats are discussed here.
SIT - Caveats are discussed here. Please be sure to use V06 or higher SEPT data files. SEPT data files in earlier versions had incorrect times.
MAG - The MAG X sensor on the Ahead spacecraft experiences occasional glitches of
about 1/2 nT. These glitches are extremely fast (duration of a small fraction
of a second. The cause of the glitches is currently not understood and will be
corrected in a future data release.
STE - Data are in counts, but IDL routines in our IMPACT SPEDAS library extensions
are available for converting to physical units.
Details on the STE instrument can be found here.