Diff for 'VIMS'

Revision: 1 Editor: mvolat Size: 2822: Time: 2026-01-19 07:34:53z Comment:	Revision: 20 Editor: mvolat Size: 4348: Time: 2026-02-13 16:03:45z Comment:
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	.. image:: VIMS/VIMS-IR.jpg :height: 150 :alt: [VIMS picture]
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The Visual and Infrared Mapping Spectrometer (VIMS) is a instrument onboard the Cassini mission.	The Visual and Infrared Mapping Spectrometer (VIMS) is an instrument onboard the Cassini mission.
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<<TableOfContents()>>	.. contents::
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VIMS included a pair of 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 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.
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* Visible Channel [VIMS-V] (0.35 to 1.07 µm [96 channels]; 32x32 mrad field of view) * Infrared Channel [VIMS-IR] (0.85 to 5.1 µm [256 channels]; 32x32 mrad field of view) * Mass: 37.14 kg * Peak Operating Power: 27.20 W * Average Operating Power: 21.83 W * Peak Data Rate: 182.784 kilobits/sec * Dimensions: 78 cm x 76 cm x 55 cm	* 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
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Downloading and processing CaSSIS data ======================================	.. important:: only the VIMS-IR data are present in PSUP portal. Downloading and processing VIMS data ====================================
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{{/select_cassis.jpg\|\|width="800"}}	.. image:: VIMS/select_vims.png :width: 800px 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. .. image:: VIMS/search_vims.png :width: 800px
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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.	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 <https://creativecommons.org/licenses/by/4.0>`__ license with the following attribution: ``NASA/Caltech-JPL/University of Arizona/Osuna-CNRS-Nantes Université``.
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The data was processed by the (VIMS science team)[https://vims.univ-nantes.fr/].	The data was processed by the `VIMS science team <https://vims.univ-nantes.fr/>`__ using an `ISIS-based procedure <https://vims.univ-nantes.fr/info/isis-calibration>`_ (click for more details).
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TODO	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
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* VIMS instrument description at NASA: (https://science.nasa.gov/mission/cassini/spacecraft/cassini-orbiter/visible-and-infrared-mapping-spectrometer/) * VIMS observation portal at LPG/OSUNA: (https://vims.univ-nantes.fr/) * TODO: articles	* VIMS instrument description at `NASA <https://science.nasa.gov/mission/cassini/spacecraft/cassini-orbiter/visible-and-infrared-mapping-spectrometer/>`__ * VIMS observation portal at LPG/OSUNA: `vims.univ-nantes.fr <https://vims.univ-nantes.fr/>`__ * Le Mouélic et al. (2019), The Cassini VIMS archive of Titan: From browse products to global infrared color maps - doi:`10.1016/j.icarus.2018.09.017 <https://doi.org/10.1016/j.icarus.2018.09.017>`__ * Brown et al. (2004): The Cassini VIMS archive of Titan: From browse products to global infrared color maps - doi:`10.1007/s11214-004-1453-x <https://doi.org/10.1007/s11214-004-1453-x>`__

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

Contents[+]

Instrument description
Downloading and processing VIMS data[+]
1. Imagery[+]
Data description[+]
1. Images[+]
  1. Directory content
  2. Georeferencing
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

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.

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.

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

VIMS instrument description at NASA
VIMS observation portal at LPG/OSUNA: vims.univ-nantes.fr
Le Mouélic et al. (2019), The Cassini VIMS archive of Titan: From browse products to global infrared color maps - doi:10.1016/j.icarus.2018.09.017
Brown et al. (2004): The Cassini VIMS archive of Titan: From browse products to global infrared color maps - doi:10.1007/s11214-004-1453-x