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New Horizons Probe's Images of Jupiter
SeaDour writes "The Pluto-bound New Horizons space probe, launched a little over a year ago, recently succeeded in passing through a narrow navigational keyhole by Jupiter. Using the gas giant's tremendous gravity, the craft now has a significant boost toward its final destination, shaving three years off the time it would otherwise spend en-route. As it passed through the Jovian system, the probe took some fantastic images of the neighborhood, including detailed observations of erupting volcanoes on Io, time-lapse photography of Jupiter's tumultuous atmosphere, and the faint ring system that was first discovered in Voyager photography. These new images prove the capabilities of the small probe, which is set to reach Pluto in 2015."
And as we all know, it is Jupiters orbital velocity that gives the spacecraft its speed boost, not Jupiter's gravitational field. See: here.
From the JPL website:
"This is the last of a handful of LORRI images that New Horizons is sending "home" during its busy close encounter with Jupiter - hundreds of images and other data are being taken and stored onboard. The rest of the images will be returned to Earth over the coming weeks and months as the spacecraft speeds along to Pluto."
Wait some time for the high-res...they're more interested in making sure the thing works above all else.
Ralph: A Visible/Infrared Imager for the New Horizons Pluto/Kuiper Belt Mission
"MVIC is composed of 7 independent CCD arrays on a single substrate. It uses two of its large format (5024x32 pixel)
CCD arrays, operated in time delay integration (TDI) mode, to provide panchromatic (400 to 975 nm) images. Four
additional 5024x32 CCDs, combined with the appropriate filters and also operated in TDI mode, provide the capability
of mapping in blue (400-550 nm), red (540-700 nm), near IR (780-975 nm) and narrow band methane (860-910 nm)
channels."
You did know that cameras like this take colour shots by merging multiple exposures with different filters applied, right? They're probably using their limited bandwidth to retrieve single exposures from each shot to get a quicker overview of what they've got.
If Jupiter didn't exhibit a strong gravitational pull on the probe, it wouldn't be able to have a significant impact on the probe's orbital velocity.
If Jupiter were not moving w/r/t the sun and the probe, the probe's velocity w/r/t the sun would be no greater after the flyby than before.
The way I see it, both gravity and orbital velocity are necessary components of the gravitational slingshot, so it's fair to say that it's a combination of the two that give the spacecraft its speed boost.