Document title: Format description for NDADS ULYSSES MAG_IP_1H_ASC datatype
Project: ULYSSES
NDADS Datatype: MAG_IP_1H_ASC           
Super-EID: DOCUMENT                      
There may be other documents also identified by this super-EID.
NDADS filename: FORMAT_MAG_IP_ULY_1H.TXT                  
TRF entry: b46602.txt in NSSDC's controlled digital document library, Feb. 1998.
Document text follows:
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File: FORMAT_MAG_IP_ULY_1H.TXT                                   12/24/96 JFC
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ULYSSES HOURLY AVERAGED INTERPLANETARY CRUISE MAGNETIC FIELD DATA
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Data Set Coverage (yyy-mm-dd): 1990-10-25 to 1992-02-02
                               1992-02-16 to 1995-06-30
                               {excluding Jupiter encounter, Feb. 3 - 15, 1992}

Satellite: Ulysses

Experiment: Ulysses Magnetic Field 

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

Data Set Contact: C. Tranquille, Ulysses Data System, SSD-ESA, ESTEC

Data Set Submission Date: 1996-05-01 (most recent update)

Data Set Description: 

This data set contains hourly 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 hour interval and expressed in Spacecraft Event Time - UT (SCET-UT). For
statistical checks the number of full resolution vectors contributing to the
average in each interval is provided. 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. 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 in the COHOWeb browse/display system on World Wide Web. 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_1H.TXT      - this file
yyddd_yyddd_MAG_IP_ULY_1H.ASC - yearly hour average data files (ASCII) for 
                                day yyddd through day yyddd

Parameter Format for Data Files: 

This file has ASCII table format with eight columns:

	1) Year (two digit integer)
	2) Decimal day no. (January 1 = Day 1, fractional part completely 
	   specifies the timing of the data point)
	3) Decimal hour (actually redundant but aids readability of the file)
	4) Magnetic field hour average of R component (nT)
	5) Magnetic field hour average of T component (nT)
	6) Magnetic field hour average of N component (nT)
	7) Magnetic field hour average magnitude (nT) (note that this is the 
           average of the magnitudes of the individual full resolution vectors 
           as opposed to the magnitude of the vector formed by the hourly
           averaged components) 
	8) Number of full resolution vectors that have contributed to the 
           average (as a crude statistical validity check)


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

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.hour]

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.