It is outfitted with two high-resolution cameras (including one backup), a visible and near-infrared mapping spectrometer
to identify minerals on the surface, and a gamma ray and neutron spectrometer, which will be used to reveal the presence of elements such as iron and hydrogen in the soil.
NASA decided last month to permanently shut down the craft's two cameras, a visible-light detector, and a near-infrared mapping spectrometer
. Another light-sensing device, a combination photopolarimeter and radiometer, has also been switched off.
from the spacecraft's near-infrared mapping spectrometer
. Much of Europa's trailing hemisphere looks darkly mottled in visible light, and these same areas exhibit strong absorptions near 1.5 and 2.0 microns (the red areas in 10).
Carlson (Jet Propulsion Laboratory) identified CO2 emissions in data acquired by Galileo's Near-Infrared Mapping Spectrometer
(NIMS) in September 1997.
Fanale, base their findings on data gathered by Galileo's near-infrared mapping spectrometer
during several passes by Europa.
Still-longer wavelengths can be sampled using the spacecraft's Near-Infrared Mapping Spectrometer
, or NIMS.
He and his colleagues base their analysis on data recorded by the craft's near-infrared mapping spectrometer
Five seconds later, the craft's near-infrared mapping spectrometer
first saw the explosion, recording the rising fireball's expansion and cooling for 90 seconds, until it was thousands of kilometers across and only 400 kelvins.
A mere 1 1/2 km across, the tiny moonlet appears in images taken by Galileo's CCD camera and its near-infrared mapping spectrometer
(NIMS) during a flyby of Ida last August 28th.
Galileo's near-infrared mapping spectrometer
hasn't examined the mineral composition of Ida's entire surface, but those regions it has looked at consist mainly of the mineral olivine, with traces of orthopyroxene.
Data from Galileo's near-infrared mapping spectrometer
indicate that the moon, like Ida, has a high proportion of silicates.
O'Neil notes that researchers think the patch is real because two instruments aboard Galileo, the solid-state imaging camera and the near-infrared mapping spectrometer
, both indicate the same feature.