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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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Impact Craters on Icy Callisto: Doh crater and Asgard
Title
Impact Craters on Icy Callisto: Doh crater and Asgard
Title
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Original Caption Released with Image:
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This composite of Jupiter's icy moon Callisto combines data from two orbits showing several types of impact craters. North is to the top of the picture; the sun illuminates the surface from the east. The global image on the right shows one of the largest impact structures on Callisto, the Asgard multi-ring structure located near 30 degrees north latitude, 142 degrees west longitude. The Asgard structure is approximately 1700 kilometers (1,054 miles) across and consists of a bright central zone surrounded by discontinuous rings. The rings include degraded ridges near the central zone and troughs at the outer margin, which resulted from deformation of the icy crust following impact. Smaller impacts have smashed into Callisto after the formation of Asgard. The young, bright-rayed crater Burr located on the northern part of Asgardis about 75 kilometers (46 miles) across. Galileo images show a third type of impact crater in this image, a dome crater named Doh, located in the bright central plains of Asgard. Doh (left image) is about 55 kilometers (34 miles)in diameter, while the dome is about 25 kilometers (15 miles) across. Dome craters contain a central mound instead of a bowl shaped depression or central mountain (peak) typically seen in larger impact craters. This type of crater could represent penetration into a slushy zone beneath the surface of the Asgard impact. The global image on the right was taken on November 4, 1996, at a distance of 111,900 kilometers (69,400 miles) by the solid state imaging (SSI) camera onboard NASA's Galileo spacecraft during its third orbit around Jupiter. The image on the left was obtained at a resolution of 90 meters (295 feet)per picture element on September 16, 1997 during Galileo's tenth orbit when the spacecraft was less than 9,500 kilometers (6,000 miles) from Callisto. The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo
Original_Caption_Rel eased_with_Image
This composite of Jupiter's icy moon Callisto combines data from two orbits showing several types of impact craters. North is to the top of the picture; the sun illuminates the surface from the east. The global image on the right shows one of the largest impact structures on Callisto, the Asgard multi-ring structure located near 30 degrees north latitude, 142 degrees west longitude. The Asgard structure is approximately 1700 kilometers (1,054 miles) across and consists of a bright central zone surrounded by discontinuous rings. The rings include degraded ridges near the central zone and troughs at the outer margin, which resulted from deformation of the icy crust following impact. Smaller impacts have smashed into Callisto after the formation of Asgard. The young, bright-rayed crater Burr located on the northern part of Asgardis about 75 kilometers (46 miles) across. Galileo images show a third type of impact crater in this image, a dome crater named Doh, located in the bright central plains of Asgard. Doh (left image) is about 55 kilometers (34 miles)in diameter, while the dome is about 25 kilometers (15 miles) across. Dome craters contain a central mound instead of a bowl shaped depression or central mountain (peak) typically seen in larger impact craters. This type of crater could represent penetration into a slushy zone beneath the surface of the Asgard impact. The global image on the right was taken on November 4, 1996, at a distance of 111,900 kilometers (69,400 miles) by the solid state imaging (SSI) camera onboard NASA's Galileo spacecraft during its third orbit around Jupiter. The image on the left was obtained at a resolution of 90 meters (295 feet)per picture element on September 16, 1997 during Galileo's tenth orbit when the spacecraft was less than 9,500 kilometers (6,000 miles) from Callisto. The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo Original Caption Released with Image
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Addition Date:
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1998-12-07
Addition_Date
1998-12-07
Addition Date
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Produced By:
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Arizona State University
Produced_By
Arizona State University
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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Callisto
Target_Name
Callisto
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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Solid-State Imaging
Instrument
Solid-State Imaging
Instrument
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Product Size:
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1152 samples x 884 lines
Product_Size
1152 samples x 884 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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MRPS94052
Producer_ID
MRPS94052
Producer ID
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facet_what:
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Sun
facet_what
Sun
facet_what
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facet_what:
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Crater
facet_what
Crater
facet_what
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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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Solid-State Imaging
facet_what
Solid-State Imaging
facet_what
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facet_what:
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Callisto
facet_what
Callisto
facet_what
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facet_where:
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Jet Propulsion Laboratory
facet_where
Jet Propulsion Laboratory
facet_where
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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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Arizona
facet_where
Arizona
facet_where
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facet_where:
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Callisto
facet_where
Callisto
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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November 4, 1996
facet_when
November 4, 1996
facet_when
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facet_when:
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September 16, 1997
facet_when
September 16, 1997
facet_when
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facet_when_year:
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1996
facet_when_year
1996
facet_when_year
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facet_when_year:
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1997
facet_when_year
1997
facet_when_year
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Image #:
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PIA01648
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UID:
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SPD-PHOTJ-PIA01648
UID
SPD-PHOTJ-PIA01648
UID
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orignial url:
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orignial_url
orignial url
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