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Ride along with Rosetta through the eyes of OSIRIS
by Staff Writers
Paris (ESA) Dec 12, 2015


Single-frame OSIRIS narrow-angle camera (NAC) image taken on 10 December 2015, when Rosetta was 103.2 km from the nucleus of Comet 67P/Churyumov-Gerasimenko. The scale is 1.87 m/pixel. Desktop available 1920x1080

Rosetta's OSIRIS camera team has launched a new website to showcase their recent images of Comet 67P/Churyumov-Gerasimenko. The high-resolution images, taken either with the narrow- or wide-angle scientific imaging camera, will show the comet as recently as the day before.

They will be posted to a dedicated website but followers can also subscribe to a mailing list to receive the images directly via email.

The cadence of the images released will depend on the scientific operations of the spacecraft and in particular on the as-run OSIRIS observations on any given day, along with the availability of images downloaded from the spacecraft.

A minimum of an image per week should be expected, up to an image a day if they are taken daily.

"Following perihelion and a far excursion, we are now back at closer distances - about 100 km - to the comet, providing a view similar to that when we first arrived on 6 August 2014," says Holger Sierks, principal investigator for the camera at the Max Planck Institute for Solar System Research in Gottingen, Germany.

"We'd like to share this view with the community and the general public, in near-real time, as we re-approach and eventually descend to the surface of the comet."

The images will be released by a robotic system in JPG format, raw or calibrated as available, following a brief pre-selection by OSIRIS scientists. Basic 'metadata' stating the date, time, distance to the comet and the Sun, and the resolution of the image will be included with each.

There will not be a detailed scientific description of the images because the goal is to provide up-to-date 'postcards' of the comet. Traditional image releases with scientific interpretation will still be made, separately, in the usual way.

The images will also be added to our ESA galleries and shared on our Rosetta social media channels. In addition, we plan to showcase them in a weekly blog post alongside our regular navigation camera (NavCam) CometWatch feature.

"This new initiative is a welcome addition to our long-established NavCam CometWatch releases, and gives us another way to enjoy riding along with Rosetta as it follows the comet through the Solar System," notes Patrick Martin, ESA's Rosetta mission manager.

"Now that we're closer to the comet again we're looking forward to seeing its surface in more detail. We're also looking forward to sharing a fantastic view as Rosetta descends to the surface of the comet next September," says Matt Taylor, ESA's Rosetta project scientist.

Visit the website here


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Related Links
Rosetta at ESA
Asteroid and Comet Mission News, Science and Technology






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NEOWISE observes carbon gases in comets
Pasadena CA (JPL) Nov 25, 2015
After its launch in 2009, NASA's NEOWISE spacecraft observed 163 comets during the WISE/NEOWISE prime mission. This sample from the space telescope represents the largest infrared survey of comets to date. Data from the survey are giving new insights into the dust, comet nucleus sizes, and production rates for difficult-to-observe gases like carbon dioxide and carbon monoxide. Carbon monox ... read more


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