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Summary

The Solar Optical Universal Polarimeter (SOUP) experiment was flown in
July and August, 1985, on board the STS-51F/Spacelab II shuttle
mission. Images of solar features observed in white light were
recorded on film. The targets were solar pores, sunspots, upwellings,
active region AR 4682, and the structures along the solar limb. When
the film was ... returned to the investigator team and developed, it was
digitized frame by frame. Three preliminary data products were
deposited at NSSDC: five tapes of processed data files, one tape of
source program codes for reading the data files, and one 16mm movie of
a segment of SOUP data (an example of the raw data taken in flight).

The film frames were digitized using the following process. First,
the film data was digitized into a 512 x 512 image array using a CCD
camera system. Images were registered, or corrected to remove the
effects of solar rotation. Dust and irregularities in the optics were
corrected for by dividing out flat field images digitized with no film
in the light path. Corrections were also made for bad pixels and
irregularities in the CCD by subtracting dark current images of the
CCD (i.e., with no light passing through the system). Finally, the
512 x 512 array of integers was compressed into a 256 x 256 format by
averaging groups of four pixels.

Science results from investigations of the data include
characteristics of the granulation of the solar photosphere, the
observation of exploding granules, horizontal velocity fields and flow
patterns, and characterization of the role of the solar 5-minute
oscillations in the granulation pattern.


The three products held at NSSDC are identified as follows:

85-063A-08A SOUP White Light Images (5 tapes of processed image data)
85-063A-08B Fortran Source Code and IDL Source Code to Read SOUP Data
(1 tape)
85-063A-08C 16mm Movie of a SOUP Raw Data Sample (1 reel)

Data Set Citation

Dataset Creator: NASA/GSFC/NSSDC Dataset Title: Preliminary Data from the Solar Optical Universal Polarimeter (SOUP) on Spacelab2 Online Resource: http://nssdc.gsfc.nasa.gov

Temporal Coverage

Start Date: 1985-08-05 Stop Date: 1985-08-05

Location Keywords

SPACE > SOLAR REGION > PHOTOSPHERE

Science Keywords

SUN-EARTH INTERACTIONS > SOLAR ACTIVITY > SOLAR ACTIVE REGIONS SUN-EARTH INTERACTIONS > SOLAR ACTIVITY > SOLAR IMAGERY SUN-EARTH INTERACTIONS > SOLAR ACTIVITY > SUNSPOTS

ISO Topic Category

IMAGERY/BASE MAPS/EARTH COVER GEOSCIENTIFIC INFORMATION

Platform

SPACE SHUTTLES STS-51F > Space Tansport System STS-51F

Instrument

SOUP > Solar Optical Universal Polarimeter

Ancillary Keywords

GRANULATION IDN_NODE GSFC/NSSDC QUIET SUN SUN

Originating Center

NSSDC

Data Center

National Space Science Data Center, Space Science Data Operation Office, Goddard Space Flight Center, NASA Data Center URL: http://nssdc.gsfc.nasa.gov/ Dataset ID: 85-063A-08A Dataset ID: 85-063A-08B Dataset ID: 85-063A-08C Data Center Personnel Name: NSSDC USER SUPPORT OFFICE Phone: (301) 286-6695 Fax: (301) 286-1635 Email: request at nssdca.gsfc.nasa.gov Contact Address: National Space Science Data Center NSSDC/Code 633.4 NASA/Goddard Space Flight Center City: Greenbelt Province or State: MD Postal Code: 20771 Country: USA

Personnel

DAVID ALLEN BATCHELOR Role: DIF AUTHOR Phone: 301-286-2988 Email: David.A.Batchelor at nasa.gov Contact Address: NASA Goddard Space Flight Center Code 561.0 City: Greenbelt Province or State: MD Postal Code: 20771 Country: USA ZOE ANNE FRANK Role: TECHNICAL CONTACT Phone: (415) 965-0640 Contact Address: Lockheed Research Labs. Solar Physics, Dept. 91-30/256 3251 Hanover St. City: Palo Alto Province or State: CA Postal Code: 94304 Country: USA ALAN M. TITLE Role: INVESTIGATOR Phone: (415) 424-4034 Contact Address: Lockheed Research Labs. Solar Physics, Dept. 91-30/256 3251 Hanover St. City: Palo Alto Province or State: CA Postal Code: 94304 Country: USA

Publications/References

Title, A. M., Tarbell, T. D., Topka, K. P., Ferguson, S. H., Shine,
R. A., and the SOUP Team, Statistical properties of solar granulation
derived from the SOUP instrument on Spacelab II, Astrophys. J., 336,,
475-494, 1989.

Creation and Review Dates

Last DIF Revision Date: 2005-07-28

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