Media Information
 
 
 
collection:
nasa new
mediatype:
image
collection:
nasa
collection:
nasacassinihuygensco llection
title:
Tiger Stripe Split Ends
description:
This image shows a high-resolution heat intensity map of part of the south polar region of Saturn's moon Enceladus, made from data obtained by NASA's Cassini spacecraft. The map reveals never-before-seen details of warm fractures that branch off like split ends from the ends of the main trenches of two ''tiger stripes.'' The features nicknamed ''tiger stripes'' are long fissures that spray water vapor and icy particles. These two fissures, Cairo Sulcus (left) and Alexandria Sulcus (right), extend to the lower right, off the bottom of the image. The map also shows an intriguing isolated warm spot, shown in purple-red in the upper left of the image, that is separated from other active fissures. The thermal data came from Cassini's composite infrared spectrometer during an Aug. 13, 2010, flyby of Enceladus. Scientists overlaid the data on a background map of that region made from Cassini images taken in July 2005. The intensity of thermal radiation, measured at wavelengths from 12 to 16 microns, is color-coded, with dark blue, purple, red and orange denoting progressively more intense radiation, due to higher temperatures and/or larger expanses of warm material. The pale blue color indicates regions that were mapped but that were too cold to emit significant radiation. Alignment of the thermal map with the underlying base map is approximate. The map shows a region approximately 130 kilometers (80 miles) across. These data were obtained as winter darkness began to engulf the south polar region of Enceladus. Away from the warm tiger stripes, which reach temperatures up to 190 Kelvin (minus 120 degrees Fahrenheit), Cassini measured surface temperatures near Enceladus' south pole as low as 52 Kelvin (minus 365 degrees Fahrenheit), and still colder temperatures are expected as winter advances. Scientists are still analyzing the data to calculate a temperature for the cross-cutting fractures and the isolated warm spot. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The composite infrared spectrometer team is based at NASA's Goddard Space Flight Center, Greenbelt, Md., where the instrument was built. The imaging operations center is based at the Space Science Institute in Boulder, Colo. For more information about the Cassini-Huygens mission visit http://www.nasa.gov…or http://saturn.jpl.n…Image credit: NASA/JPL/GSFC/SWRI/S SI
subject:
Where -- California
subject:
What -- Cassini
subject:
Where -- Jet Propulsion Laboratory (JPL)
subject:
What -- Huygens Probe
subject:
Where -- Washington
subject:
What -- Moon
subject:
Where -- Goddard Space Flight Center (GSFC)
subject:
What -- Spectrometer
subject:
What -- Polar
subject:
What -- Enceladus
subject:
What -- Infrared Spectrometer
subject:
What -- Composite Infrared Spectrometer
subject:
Where -- Cairo
what:
Huygens Probe
what:
Moon
what:
Cassini
what:
Spectrometer
what:
Enceladus
what:
Polar
what:
Composite Infrared Spectrometer
what:
Infrared Spectrometer
where:
Washington
where:
Jet Propulsion Laboratory (JPL)
where:
California
where:
Goddard Space Flight Center (GSFC)
where:
Cairo
identifier:
502696main_pia13621u nannotated
uploader:
gwilliam@archive.org
addeddate:
2010-12-07 01:17:39
publicdate:
2010-12-07 01:17:39
creator:
NASA
ImageUID:
file:/home/lunaadmin /Source_download/201 012/1/502696main_pia 13621unannotated/502 696main_pia13621unan notated-full_full.jp g
filename:
502696main_pia13621u nannotated-full_full .jpg
date:
2010-11-30
rights:
Public Domain
source:
http://www.nasa.gov…
year:
2010

Tiger Stripe Split Ends
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