Summary: Cassini VIMS IR instrument
Revert to this revision
[VIMS picture]

The Visual and Infrared Mapping Spectrometer (VIMS) is an instrument onboard the Cassini mission.

Contents[+]
  1. Instrument description
  2. Downloading and processing VIMS data[+]
    1. Imagery[+]
      1. Tutorial
      2. License
      3. Pipeline information
  3. Data description[+]
    1. Images[+]
      1. Directory content
      2. Georeferencing
  4. References

Instrument description

VIMS included a pair of distinct imaging grating spectrometers that were designed to measure reflected and emitted radiation from atmospheres, rings and surfaces to determine their compositions, temperatures and structures.

  • VIMS-V (visible and near infrared line scan spectrometer) from 0.35 to 1.07 µm (96 bands)

  • VIMS-IR (infrared 2D scan spectrometer) from 0.85 to 5.1 µm (256 bands)

  • FOV: 32x32 mrad for both spectrometers

  • Mass: 37 kg

Important note: only the VIMS-IR data are present in PSUP portal.

Downloading and processing VIMS data

Imagery

Tutorial

From the “Maps” tab, zoom-in on your region of interest. You can swith backgrounds for more visibility, and then display the VIMS layer. You can see the VIMS products footprints that appear in pink. Use the “Select” button to choose the products you desire over an area. Use the right-click context menu to add your selection to your workspace.

wiki/VIMS/select_vims.png

But given how dense and global is VIMS coverage, you might want to use the text search tab using keyworks "titan", "vims" and a coordinate.

wiki/VIMS/search_vims.png

In the "Workspace" tab, you will see your product selection. VIMS images are already processed by its science team, MarsSI directly provide the map-projected products (MRDR).

Check the product status: if some data is not already done yet, select the rows you would like to request by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Process" action on the top of the workspace table. You can check more information about the processing in the job tab if needed.

Once all the data you would like is done, select entries by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Copy" action to request a copy of the data in your personal directory. You can then proceed to download products as described in the SFTP section.

License

This dataset is distributed under a CC-BY-4.0 license with the following attribution: NASA/Caltech-JPL/University of Arizona/Osuna-CNRS-Nantes Université.

Pipeline information

The data was processed by the VIMS science team using an ISIS-based procedure (click for more details).

Data description

Images

Directory content

The content of an VIMS product directory in MarsSI should look like:

1686495872_1-G_101.jpg

TODO

1686495872_1-G_203.jpg

TODO

1686495872_1-G_212.jpg

TODO

1686495872_1-G_501.jpg

TODO

1686495872_1.log

TODO

1686495872_1-R_159_126.jpg

TODO

1686495872_1-R_203_210.jpg

TODO

1686495872_1-RGB_203_158_279.jpg

TODO

1686495872_1-RGB_231_269_195.jpg

TODO

1686495872_1-RGB_277_327_332.jpg

TODO

1686495872_1-RGB_501_158_129.jpg

TODO

1686495872_1-RGB_501_275_203.jpg

TODO

1686495872_1-RGB_501_332_322.jpg

TODO

C1686495872_1_ir.cub

TODO

v1686495872_1.lbl

TODO

v1686495872_1.qub

TODO

Georeferencing

Georeferencing was done through orbital information.

References