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Cassini mission looking for input from amateur processors, UX designer for archive wants to understand how people will use it
robtapella
post Apr 24 2017, 05:19 PM
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Hi everyone—

I am working with the Cassini team at JPL which, as you know, is moving into end-of-mission planning. I’m currently learning about how scientists search-for, calibrate, and analyze data from the PDS. My goal is to recommend search-tools or related products that will support the final archival data products. I would also like to find the most important pain-points with the existing site.

I am looking for people:
- Who have analyzed Cassini data
- Who are NOT on a Cassini instrument team
- Who found and downloaded the data from a public archive/repository (e.g. from PDS—not from one of the instrument team archives, and not via email or a publication—the search process is the foundation of what I am trying to understand)
- Who would like to walk me through an example of _how_ they have searched for, calibrated, and/or analyzed data in the past

If you fit this profile, and you’d like to help out, please contact me via email.

Feel free to ask any clarification questions here and I can answer them for everyone.

Rob Tapella
rtapella@jpl.nasa.gov
UX Designer, NASA-JPL Science Data Applications
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JohnVV
post Apr 30 2017, 11:40 PM
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it depends on what i am looking for

for example this old post about saturns pole
http://forum.celestialmatters.org/viewtopi...mp;t=780#p13361

i normally start here
https://pds-imaging.jpl.nasa.gov//search/

BUT!!!!

The pds search tool has a nasty habit of royally messing up the pds IMG header
the wget script really dose not work , the files are not usable in ISIS3

so

i then grab the data from the pds "data" folder most of the time
say for image "W1775154914_1.img " ( from the example above )
the img and lbl file from
https://pds-imaging.jpl.nasa.gov/data/cassi...309_1775181685/

as for the rest "ciss2isis" and "cisscal" do most of the work

not really sure what you are looking for
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craigmcg
post May 1 2017, 11:54 AM
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Rob, I suggest you reach out directly to those who have posted lots of processed images on this site. Some may have done so as a passing phase and no longer check things out on a routine basis. They may also not realize what you are looking for based o the title of the thread.

I also think it would be worthwhile explaining the end goal of your project, as that would help people put your request in context.

I don't know if any of the things done in the Mars community would be helpful or not. I realize that there is a big difference in the mission, but things like Midnight Planets are a fun tool for following a mission, and it seems to be fully automatic. A retrospective tool for visualizing the Cassini tour would be fun app.
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robtapella
post May 2 2017, 04:55 PM
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Thanks for the suggestions. I will also follow up with some specific users directly (like JohnVV!).

What I am looking for right now is people to talk to! Observing people as they search for data is super helpful and full of interesting information. If you fit the criteria list, please email me and we can chat on the phone or via WebEx.

I am learning about different goals of search and how the available PDS tools are used to support those goals, and where they fall short. For example "I'm looking at the red stripey things on Tethys, so I want all the images with phase angle X taken of region Y of Tethys. I use the imaging node search tool with parameters ABC and sort through the results by blah blah etc. I really wish I could just point to a location on Tethys and download all the ISS and VIMS data at that location." Seeing this in action gives a lot of explicit needs, implicit needs and mental models around search.

Strange behavior and bugs are also helpful to identify specific pain points with the existing tools, although that is a secondary goal of my current research.

Rob
rtapella@jpl.nasa.gov


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