Document title: Format description for NDADS ULYSSES MAG_IP_1M_ASC datatype
Project: ULYSSES
NDADS Datatype: MAG_IP_1M_ASC           
Super-EID: DOCUMENT                      
There may be other documents also identified by this super-EID.
NDADS filename: FORMAT_MAG_IP_ULY_1M.TXT                  
TRF entry: b46601.txt in NSSDC's controlled digital document library, Feb. 1998.
Document text follows:
----------------------

File: FORMAT_MAG_IP_ULY_1M.TXT                                   12/24/96 JFC
===============================================================================

ULYSSES 1-MINUTE AVERAGED INTERPLANETARY CRUISE MAGNETIC FIELD DATA
-------------------------------------------------------------------

Data Set Coverage (yyy-mm-dd): 1990-10-25 to 1992-02-02 (pre-Jupiter)
                               1992-02-19 to 1995-06-30 (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 Submission Date: 1995-06-22 (pre-Jupiter data)
                          1995-11-03 (post-Jupiter data)
                          1996-06-05 (new cruise data)
                          1996-11-06 (new cruise data)

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 under URL
http:/nssdc.gsfc.nasa.gov/space/ space_physics_home.htm for further details. 


Data Set Files:

FORMAT_MAG_IP_ULY_1M.TXT - this file
yymm_MAG_IP_ULY_1M.ASC   - minute average data files (ASCII) for month mm of
                           year yy

Parameter Format for Data Files: 

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


NSSDC Data Set Location:

Off-line: request via e-mail to request@nssdca.gsfc.nasa.gov

On-line: COHO directory at nssdca::anon_dir:[coho.ulymag.minute]

Near-line: Ulysses project data set on NDADS (ingest pending)


Acknowledgement: 

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


Related Information:

Other information about the Ulysses mission, experiments, and data sets at
NSSDC may be obtained via World Wide Web and NSSDC's space physics page at
http://nssdc.gsfc.nasa.gov/space/space_physics_home.html. Non-WWW users may
access NSSDC information in the NASA Master Directory and the NSSDC Master
catalog via Internet login to the NSSDC On-Line Data Information Service
(NODIS) at nodis@nssdca.gsfc.nasa.gov. 
 
Ulysses data on NDADS (NASA's Data Archive and Distribution Service) may be
located via WWW as above or via an e-mail message to ARMS (Automated Retrieval
Mail System) at archives@ndadsa.gsfc.nasa.gov with "HOLDINGS" on the subject
line. 


Updates:

5/28/96: files 9011_MAG_IP_ULY_1M.ASC and 9012_MAG_IP_ULY_1M.ASC have been
replaced since the earlier version submitted to NSSDC covered the wrong dates.