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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Galileo NIMS Observes Amirani
Title
Galileo NIMS Observes Amirani
Title
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Original Caption Released with Image:
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This image is the highest-resolution thermal, or heat image, ever made of Amirani, a large volcano on Jupiter's moon Io. It was taken on October 10, 1999, by the near-infrared mapping spectrometer onboard NASA's Galileo spacecraft. Amirani is on the side of Io that permanently faces away from Jupiter. This image of Amirani was taken at a distance of less than 25,000 kilometers (16,000 miles). The picture scale is approximately 6.5 kilometers (4 miles) per spectrometer pixel. The center and right images show views of Amirani as seen by the spectrometer at two wavelengths, 1.0 and 4.6 microns. These images can be compared with a visible wavelength image (on the left) of the same area obtained by Galileo's camera during a previous orbit. The visible light image shows extensive lava flows and a dark-floored caldera with associated bright red deposits of material fed from the volcano. The spectrometer observation was made in daylight. The center image, taken at a wavelength of 1 micron, shows light and dark areas on the surface that can be used to line up the spectrometer data with the camera image. The image on the right shows the same area at a wavelength of 4.6 microns, which reveals the thermal emission from three separate volcanic areas. The locations of these three "hot spots" correspond to the darkest features in the camera image, reinforcing a previously held belief by Galileo scientists that there is a correlation between the dark areas and the hot spots. The three spectrometer hot spots are located at the eastern edge of the caldera at the bottom of the camera image, and two locations along the massive Amirani flows. These are most likely active lava flows on the surface. Launched in October 1989, Galileo entered orbit around Jupiter on December 7, 1995 on a mission to study the giant planet, its largest moons and its magnetic environment. JPL manages the mission for NASA's Office of Space Science, Washington, DC. JPL is a division of the California Institute of Technology, Pasadena, CA. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at http: //galileo.jpl.nasa.g ov/gallery/io.cfm.
Original_Caption_Rel eased_with_Image
This image is the highest-resolution thermal, or heat image, ever made of Amirani, a large volcano on Jupiter's moon Io. It was taken on October 10, 1999, by the near-infrared mapping spectrometer onboard NASA's Galileo spacecraft. Amirani is on the side of Io that permanently faces away from Jupiter. This image of Amirani was taken at a distance of less than 25,000 kilometers (16,000 miles). The picture scale is approximately 6.5 kilometers (4 miles) per spectrometer pixel. The center and right images show views of Amirani as seen by the spectrometer at two wavelengths, 1.0 and 4.6 microns. These images can be compared with a visible wavelength image (on the left) of the same area obtained by Galileo's camera during a previous orbit. The visible light image shows extensive lava flows and a dark-floored caldera with associated bright red deposits of material fed from the volcano. The spectrometer observation was made in daylight. The center image, taken at a wavelength of 1 micron, shows light and dark areas on the surface that can be used to line up the spectrometer data with the camera image. The image on the right shows the same area at a wavelength of 4.6 microns, which reveals the thermal emission from three separate volcanic areas. The locations of these three "hot spots" correspond to the darkest features in the camera image, reinforcing a previously held belief by Galileo scientists that there is a correlation between the dark areas and the hot spots. The three spectrometer hot spots are located at the eastern edge of the caldera at the bottom of the camera image, and two locations along the massive Amirani flows. These are most likely active lava flows on the surface. Launched in October 1989, Galileo entered orbit around Jupiter on December 7, 1995 on a mission to study the giant planet, its largest moons and its magnetic environment. JPL manages the mission for NASA's Office of Space Science, Washington, DC. JPL is a division of the California Institute of Technology, Pasadena, CA. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at http: //galileo.jpl.nasa.g ov/gallery/io.cfm. Original Caption Released with Image
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Addition Date:
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1999-11-19
Addition_Date
1999-11-19
Addition Date
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Produced By:
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JPL
Produced_By
JPL
Produced By
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Mission:
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Galileo
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Spacecraft:
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Galileo Orbiter
Spacecraft
Galileo Orbiter
Spacecraft
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Target Name:
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Io
Target_Name
Io
Target Name
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Is a satellite of:
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Jupiter
Is_a_satellite_of
Jupiter
Is a satellite of
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Instrument:
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Near Infrared Mapping Spectrometer
Instrument
Near Infrared Mapping Spectrometer
Instrument
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Product Size:
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841 samples x 631 lines
Product_Size
841 samples x 631 lines
Product Size
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Primary Data Set:
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Galileo EDRs
Primary_Data_Set
Galileo EDRs
Primary Data Set
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Producer ID:
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MRPS95573
P50692
Producer_ID
MRPS95573
P50692
Producer ID
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facet_what:
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Moon
facet_what
Moon
facet_what
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facet_what:
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Jupiter
facet_what
Jupiter
facet_what
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facet_what:
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Galileo
facet_what
Galileo
facet_what
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facet_what:
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Galileo Orbiter
facet_what
Galileo Orbiter
facet_what
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facet_what:
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Spectrometer
facet_what
Spectrometer
facet_what
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facet_what:
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Io
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facet_what:
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Visible Light
facet_what
Visible Light
facet_what
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facet_what:
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Near Infrared Mapping Spectrometer (NIMS)
facet_what
Near Infrared Mapping Spectrometer (NIMS)
facet_what
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facet_where:
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Jupiter
facet_where
Jupiter
facet_where
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facet_where:
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California
facet_where
California
facet_where
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facet_where:
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Washington
facet_where
Washington
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_when:
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October 1989
facet_when
October 1989
facet_when
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facet_when:
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December 7, 1995
facet_when
December 7, 1995
facet_when
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facet_when:
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October 10, 1999
facet_when
October 10, 1999
facet_when
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facet_when_year:
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1999
facet_when_year
1999
facet_when_year
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facet_when_year:
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1995
facet_when_year
1995
facet_when_year
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facet_when_year:
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1989
facet_when_year
1989
facet_when_year
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Image #:
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PIA02516
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UID:
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SPD-PHOTJ-PIA02516
UID
SPD-PHOTJ-PIA02516
UID
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orignial url:
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orignial_url
orignial url
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