** The Official Space Flight Thread - The Space Station and Beyond **

Cosimo

Cosimo

Cosimo

Man of Honour
OP
Joined
9 Jan 2007
Posts
164,583
Location
Metropolis
rbsp5.jpg
 

Cosimo

Cosimo

Cosimo

Man of Honour
OP
Joined
9 Jan 2007
Posts
164,583
Location
Metropolis
684583mainpia15699full1.jpg

Camera on Curiosity's Arm as Seen by Camera on Mast

The left eye of the Mast Camera (Mastcam) on NASA's Mars rover Curiosity took this image of the camera on the rover's arm, the Mars Hand Lens Imager (MAHLI), during the 30th Martian day, or sol, of the rover's mission on Mars (Sept. 5, 2012). MAHLI is one of the tools on a turret at the end of the rover's robotic arm. When this image was taken, the arm had raised the turret to about the same height as the camera on the mast. The Mastcam's left eye has a 34-millimeter focal length lens.

The image shows that MAHLI has a thin film or coating of Martian dust on it. This dust accumulated during Curiosity's final descent to the Martian surface, as the Mars Science Laboratory spacecraft's descent stage (or sky crane) engines were disrupting the surface nearby.

Effects of the dust were seen in the first image taken of Mars by MAHLI, on the day after landing (http://photojournal.jpl.nasa.gov/catalog/PIA15691). The MAHLI lens is protected from dust accumulation by a transparent dust cover. If the dust cover were clean, the images would appear as clear as if the cover were open.

The reddish circle near the center of the Mastcam Sol 30 image is the window of MAHLI's dust cover, with a diameter a little less than a soda can's diameter. Inside the lens, each of the nine glass lens elements and the front sapphire window are bonded or cemented in place by a red-colored silicone RTV (room temperature vulcanizing) material. This is a space-qualified "glue" that holds the lens elements in place. When the MAHLI is viewed from certain angles, this material gives one the impression that the inside of the lens is red.

The mechanism at the right in this image is Curiosity's dust removal tool, a motorized wire brush.

Image credit: NASA/JPL-Caltech/MSSS
Click to expand...
 

Cosimo

Cosimo

Cosimo

Man of Honour
OP
Joined
9 Jan 2007
Posts
164,583
Location
Metropolis
You can never get enough of spacewalks:


685057mainsuniwilliamsf.jpg


NASA astronaut Sunita Williams, Expedition 32 flight engineer, appears to touch the bright sun during the mission’s third session of extravehicular activity (EVA) on Sept. 5, 2012.

During the six-hour, 28-minute spacewalk, Williams and Japan Aerospace Exploration Agency astronaut Aki Hoshide (visible in the reflections of Williams’ helmet visor), flight engineer, completed the installation of a Main Bus Switching Unit (MBSU) that was hampered by a possible misalignment and damaged threads where a bolt must be placed. They also installed a camera on the International Space Station’s robotic arm, Canadarm2.

Image Credit: NASA
Click to expand...
 
You must log in or register to reply here.
Back
Top Bottom