File: ULYMAG_1M_FMT.txt                    Version: NSSDC 2003-05-07 JFC
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ULYSSES 1-MINUTE AVERAGED INTERPLANETARY CRUISE MAGNETIC FIELD DATA
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Data Set Coverage (yyy-mm-dd): 1990-10-25 to 1992-02-02 (pre-Jupiter)
                               1992-02-19 to 2002-12-31 (post-Jupiter)

Satellite: Ulysses

Experiment: Ulysses Magnetic Field 

Principal Investigator: Dr. A. Balogh, Imperial College, London, UK

Data Set Contact: Joyce Wolf, NASA Jet Propulsion Laboratory

Data Set Description: 

This data set contains one minute averages of the interplanetary magnetic
field measured by the Ulysses Magnetic Field experiment. Field vector 
components are given in units of nanoteslas and in RTN coordinates, where 
R is the sun-s/c axis, T is the cross product of the solar rotation axis 
and R, and T is the cross product of R and T. The field magnitudes in nT 
are averages of scalar magnitudes at higher time resolution. Times are 
computed at the mid-point of each minute  interval and expressed in 
Spacecraft Event Time - UT (SCET-UT). Data gaps have not been flagged in 
any way - if there were no available data in a particular hour then there
is no data record for that hour. No data from the Feb. 1992 encounter 
with Jupiter are included. Most files cover 10-day intervals, except that
the first file of each year covers days 1-9, and the last file of each 
year covers days 360-365 (or 366). Further details on the magnetic field 
measurements can be found in the following reference: Balogh, A., et al.,
Astron. Astrophys. Suppl. Ser., 92(2), 221, 1992. This data set is
available on-line in the NSSDC Anonymous FTP directory and will also be 
put on the NDADS near-line system. See NSSDC's Ulysses flight project 
page for further details at the following URL:
   http://nssdc.gsfc.nasa.gov/cgi-bin/database/www-nmc?90-090B


Data Set Files:

ULYMAG_1M_FMT.txt - this file
UyydddMINSH.asc   - minute average data files (ASCII) starting at 
                    day yyddd

Parameter Format for File UyydddMINSH.asc: 

IY	SCET-UT year (yy)
IDOY	SCET-UT day of year (ddd), IDOY = 1 for Jan. 1
IHR     SCET-UT hour of day
IMIN    SCET-UT minute of hour
ISEC    SCET-UT second of minute
BR      Radial component (RTN system) of vector magnetic field in nT
BT      Transverse component (RTN system) of vector magnetic field in nT
BN      Normal component (RTN system) of vector magnetic field in nT
B       Scalar magnitude of magnetic field in nT

	The data records are read in ASCII FORTRAN format as follows:

	READ(10,110) IY, IDOY, IHR, IMIN, ISEC, BR, BT, BN, B
110     FORMAT (1X,I2,I4.3,3I3.2, 4F8.3)


NSSDC Data Set ID: 90-090B-08B

Updates:

5/28/96: file U90330MINSH.DAT has been replaced since the earlier version
submitted to NSSDC covered the wrong dates. The corrected version date
of this file is now 3/7/96. 

6/10/96: file U93270MINSH.DAT did not originally extend for the full 
10-day period but now does in the new data just submitted.


Acknowledgement: 

Please  acknowledge the National Space Science Data Center and the 
Principal Investigator, A. Balogh  of Imperial College, London, UK.