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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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Temperature Comparison at Loki
Title
Temperature Comparison at Loki
Title
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Original Caption Released with Image:
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This image compares temperatures at the volcano Loki, the most powerful volcano on Io, seen by the photopolarimeter-rad iometer instrument onboard NASA's Galileo spacecraft during its October 1999 flyby of Jupiter's moon Io (main image), and during its February 2000 flyby (inset). The hottest regions are within the huge, 200-kilometer (120-mile) wide caldera (the dark, horseshoe-shaped region in the image). Temperature contours are in degrees Kelvin (Kelvin): 160 K is -171 F and 320 K is 116 F. In the 4 1/2 months between the images, the hot region seen in October in the southwest part of the caldera disappeared, and the eastern part of the caldera became about 40 degrees Kelvin (70 degrees Fahrenheit) hotter. The temperature increase probably results from lava flows flooding over 10,000 square kilometers (4,000 square miles) of the caldera floor. Additional information about the Hubble Space Telescope is available at http://www.stsci.edu/. Additional information about the Galileo mission is available at http://galileo.jpl.nasa.gov.
Original_Caption_Rel eased_with_Image
This image compares temperatures at the volcano Loki, the most powerful volcano on Io, seen by the photopolarimeter-rad iometer instrument onboard NASA's Galileo spacecraft during its October 1999 flyby of Jupiter's moon Io (main image), and during its February 2000 flyby (inset). The hottest regions are within the huge, 200-kilometer (120-mile) wide caldera (the dark, horseshoe-shaped region in the image). Temperature contours are in degrees Kelvin (Kelvin): 160 K is -171 F and 320 K is 116 F. In the 4 1/2 months between the images, the hot region seen in October in the southwest part of the caldera disappeared, and the eastern part of the caldera became about 40 degrees Kelvin (70 degrees Fahrenheit) hotter. The temperature increase probably results from lava flows flooding over 10,000 square kilometers (4,000 square miles) of the caldera floor. Additional information about the Hubble Space Telescope is available at http://www.stsci.edu/. Additional information about the Galileo mission is available at http://galileo.jpl.nasa.gov. Original Caption Released with Image
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Addition Date:
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2000-05-18
Addition_Date
2000-05-18
Addition Date
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Produced By:
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Lowell Observatory
Produced_By
Lowell Observatory
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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1060 samples x 767 lines
Product_Size
1060 samples x 767 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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MRPS96243
Producer_ID
MRPS96243
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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Photopolarimeter-Rad iometer
facet_what
Photopolarimeter-Rad iometer
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_what:
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Hubble Space Telescope (HST)
facet_what
Hubble Space Telescope (HST)
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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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_when:
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February 2000
facet_when
February 2000
facet_when
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facet_when:
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October 1999
facet_when
October 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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2000
facet_when_year
2000
facet_when_year
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Image #:
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PIA02549
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UID:
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SPD-PHOTJ-PIA02549
UID
SPD-PHOTJ-PIA02549
UID
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orignial url:
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orignial_url
orignial url
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