A) INTRODUCTION
   ------------
Waves experiment on Wind spacecraft carried electric dipoles to monitor
radio noise of local and solar origin in the frequency range 4 kHz-14 MHz.
Three receivers handle this spectral range: TNR (4-256 kHz), RAD1 (20-1,040
kHz), and RAD2 (1.1-13.8 MHz). Much of the data were obtained at the 
location of the 1st Lagrangian point (~ 240 RE). For more details of the 
spacecraft, experiment, and datasets, see
   
     http://nssdc.gsfc.nasa.gov/cgi-bin/database/www-nmc?94-071A-__

Another usefull site, maintained by the investigator team, is

      http://lep694.gsfc.nasa.gov/waves/doc1min.html
 
B) DATA FILES AVAILABLE VIA FTP:
   ----------------------------
NSSDC holds several digital and graphic files from the WIND/WAVES experiment 
in the wind/waves directory, with the output files named as follows:

1) PS Files.  (NAME: YYYYMMDD_WI_WAV_3MIN_V0N_PS)
   ---------
   These postscript files carry power spectra of local and solar noise as 
   3-min averages in the frquency range 4kHz - 14 MHz, as one file/day. Each 
   file carries 700 kiloBytes.    
   Location: wind/waves/spectra_3min_ps

2) GIF Files. (NAME: YYYYMMDD_WI_WAV_3MIN_V0N_GIF)
   ---------
   Same as 1), but in color. Each file carries 55 kB. 
   Location: wind/waves/spectra_3min_gif
   
3) CDF Files. Location: NOT IN THIS MACHINE, BUT IN http://cdaweb.gsfc.nasa.gov.
   _________
   The CDF is bulit from the IDL-Saved binaries, and cover the 4 kHz-14 MHz band
   in three segments: 4 - 256 kHz; 20 kHz - 1.04 MHz; and 1.1 - 14.0 MHz.
   (These IDL-Saved segments, known as TNR, RAD 1, and RAD 2 are no longer
   archived in this directory, but the dataset description is given in the later 
   paragraphs below.) The CDF version in CDAWeb enables ASCII list outputs and spectral
   plots. 
**********************************************************************************

   Digital RAD1 Files, IDL-Saved Binaries. Available only in http://lep694.gsfc.nasa.gov.
   --------------------------------------
   These are IDL-saved binary files at 1-min resolution. By "restoring" the
   files, a color plot of the spectra could be made. Each file covers a
   full day, and is a 2-dimensional matrix of 256 (logarithmically spaced 
   frequency channels covering 20 - 1,040 kHz) x 1440 (minutes/day), 
   providing the noise levels as multiples of daily minimum in each channel.
   There is also an extra row (#1441)  which provides the minimum noise level 
   for the day in each frequency band in mV/(sqrt(Hz)). 
   Not all 256 channels actualy monitor at one time; only about 32 do, and the
   rest are interpolations. ("R1" in the file name stands for the RAD1 
   receiver). The directory also carries a plotting software (which we find to
   be satisfactory only on an X-terminal), named WAVESDSP.PRO which can be 
   used for data from any of the three datasets (from RAD1, RAD2, and TNR). 
   Each file carries 2 MB. 
   

   Digital RAD2 Files, IDL-Saved Binaries. Available only in http://lep694.gsfc.nasa.gov
   --------------------------------------
   Same as RAD1, but with a single difference that this covers 1.1 - 13.8 MHz. 
   Data are most popular for investigations of solar and CME HF-radio bursts.
   

   Digital TNR  Files, IDL-Saved Binaries. Available only in http://lep694.gsfc.nasa.gov
   --------------------------------------
   Same as RAD1, but with the exceptions that the frquency range is 4-256 kHz and is 
   covered by 96 channels. Data is mainly of interest to the emissions in the 
   heliosphere and are directly entered in units of mV/(SQRT(Hz))
   

   Plotting S/W. (Name: WAVESDSP.PRO)
   -------------
   This IDL program enables spectral plots of any of the datasets named above, i.e, TNR,
   RAD1, and RAD2.  The program has been frequently updated by the PI, Dr. Mike Kaiser; 
   contact is  mkaiser@lepmlk.gsfc.nasa.gov. 
 

--------------------------------------------------------------
  Acknowledgement:

 Use of these data in publications should be accompanied by
 acknowledgements of the National Space Science Data Center(NSSDC),
Space Physics Data Facility(SPDF) and Principal Investigator.
             
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Related data and directories:
SPDF Data and Orbits Services <http://spdf.gsfc.nasa.gov/>
NSSDC Master Catalog <http://nssdc.gsfc.nasa.gov/nmc/sc-query.html>

NSSDC/SPDF Contact: Natalia Papitashvili <Natalia.E.Papitashvili.1@gsfc.nasa.gov>,
 <request@mail630.gsfc.nasa.gov>  
---------------------------------------------------------------------------
Authorizing NASA Official: Dr. R.E. McGuire, Head, SPDF, NASA Goddard Space Flight Center
                        301-286-7794, e-mail:  Robert.E.McGuire@nasa.gov
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