Dawn data in the PDS |
Dawn data in the PDS |
Feb 15 2012, 12:55 AM
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Hey folks, Christmas came just a little bit late this year...
http://dawnpub.igpp.ucla.edu QUOTE DAWN DATA RELEASE: LEVEL 1A DATA FROM APPROACH AND SURVEY It is a LOT of data. Just the Vesta Approach includes about 2000 FC images! Wow!!!The Dawn project has created a public website that is available to serve the cruise and Vesta data sets that have been delivered to the Planetary Data System (PDS) while the data are still under review. Data are available from all three Dawn instruments, the Framing Camera (FC), the Visual and Infrared Mapping Spectrometer (VIR), and the Gamma Ray and Neutron Detector (GRaND). The data that are currently available are raw data, in engineering units, sometimes referred to as EDRs by the PDS or as NASA level-1a data. Additional data sets will be added when they are submitted to the PDS. The Dawn website is located at: http://dawnpub.igpp.ucla.edu Users of these data should exercise caution. Invariably there will be errors or omissions in the documentation. Please report any problems... I think that the first thing I'm going to work on is that approach sequence/movie that I wish I'd had in real time. The rotation of Vesta through the image sequences makes color composition very hard, but I am sure there are people here who are up to it. I hope someone here can come up with a pretty color global shot that I can put into a comparison montage! -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Jun 22 2014, 01:34 AM
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IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
Strictly speaking not PDS but it's comparable: I recently found this goldmine of data from Dawn:
http://dawndata.igpp.ucla.edu/tw.jsp?section=data I'm not sure why I didn't find this earlier. A possible reason is that it's apparently relatively new (most of the files there have dates from November 2013). Among other things this site includes a very hi-res DEM/shapemodel of Vesta: http://dawndata.igpp.ucla.edu/tw.jsp?secti...Ms/DLR_HAMO_DTM This DEM has a much higher resolution than the DEM discussed earlier in this thread, i.e. here and in more detail here. The north polar region is also better in the new model. Here is a quick comparison render: The new shape model is in the Claudia coordinate system and not in a 'hybrid' coordinate system like the older one. In fact everything at the site mentioned above is in the Claudia coordinate system. Interestingly I'm getting significantly better pointing and/or position accuracy using the new shape model. There are also several maps there, including a true color map processed to appear as if the sun was illuminating all of the surface from directly above. Here is a quick and dirty test render that combines the true color map with the shape model. It has a 40 degree field of view: The true color map has some artifacts and blank spots that are visible here. There is also a vertical 'seam' at x=0 in the shape model, a surprisingly common problem in various DEMs and maps. But this is easy to fix in Photoshop. |
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