{
  "stac_version": "1.1.0",
  "stac_extensions": [
    "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
    "https://stac-extensions.github.io/projection/v1.1.0/schema.json",
    "https://stac-extensions.github.io/osc/v1.0.0/schema.json",
    "https://stac-extensions.github.io/ssys/v1.1.1/schema.json",
    "https://stac-extensions.github.io/processing/v1.1.0/schema.json",
    "https://stac-extensions.github.io/scientific/v1.0.0/schema.json",
    "https://stac-extensions.github.io/contacts/v1.0.0/schema.json",
    "https://stac-extensions.github.io/web-map-links/v1.3.0/schema.json",
    "https://stac-extensions.github.io/version/v1.2.0/schema.json"
  ],
  "type": "Collection",
  "id": "rosetta-anaglyphs",
  "version": "2.0.0",
  "title": "Rosetta OSIRIS Anaglyphs of Comet 67P/Churyumov-Gerasimenko",
  "license": "CC-BY-NC-ND-4.0",
  "description": "This catalog presents anaglyphs constructed from stereo images acquired during ESA's Rosetta mission to comet 67P/Churyumov-Gerasimenko.\n\nFollowing a long journey with gravity assists, asteroid flybys, and a wake\u2011up from deep\u2011space hibernation, the Rosetta spacecraft reached the comet to perform several months of observations.\n[Learn more about the mission](https://rosetta-3dcomet.cnes.fr/documentation#the-rosetta-mission)\n\nThe high spatial resolution stereo imaging was performed by the OSIRIS Narrow Angle Camera (NAC) in various spectral bands ranging from the ultra-violet to the near infra-red.\n[Learn more about OSIRIS](https://rosetta-3dcomet.cnes.fr/documentation#the-osiris-nac-instrument)\n\nAll NAC images were corrected for instrumental effects and calibrated.\n[Learn more about the images processing](https://rosetta-3dcomet.cnes.fr/documentation#the-processing-of-the-osiris-images)\n\nAnaglyphs were created by selecting image pairs with suitable parallax from Rosetta\u2019s shifting viewpoint, correcting illumination inconsistencies, and processing them through alignment, brightness matching, and anaglyph\u2011generation softwares.\n[Learn more about anaglyphs creation](https://rosetta-3dcomet.cnes.fr/documentation#the-construction-of-the-stereo-anaglyphs)\n\nEach anaglyph is described by 17 parameters detailing its location, geometry, and imaging context, including global and regional positioning on the comet and metadata about distance, scale, parallax, and features of interest.\n[Learn more about anaglyphs parameters](https://rosetta-3dcomet.cnes.fr/documentation#the-parameters-of-the-anaglyphs)\n\nThe catalog is organized in five main sections: **All anaglyphs**, **Favorites** highlights the most spectacular anaglyphs, **Features** regroups anaglyphs of particular topical interest (Abydos, Agilkia, Jets, Pancake, Philae, Pits, and Rings), **Nucleus components** offer 3D views of the three components of the nucleus (Big and small lobes and neck), and **Regions** offers 3D views and short descriptions of the 26 regions delimited on the nucleus.\n\nUse good red/cyan glasses, a compatible screen, and low lighting to get the best 3D view of the anaglyphs.\n[Learn more about how to best view the anaglyphs](https://rosetta-3dcomet.cnes.fr/documentation#how-to-best-view-the-anaglyphs)\n\nA new  3D model of the nucleus of comet 67P with 132 million facets was built from thousand of post\u2011perihelion images, offering far higher detail than previous models and enabling stereo movies viewable with red/cyan glasses.\n[Learn more about the 3D model](https://rosetta-3dcomet.cnes.fr/documentation#the-global-high-resolution-shape-model-of-the-nucleus-of-67p)",
  "extent": {
    "spatial": {
      "bbox": [
        [
          -180.0,
          -89.99,
          180.0,
          89.98
        ]
      ]
    },
    "temporal": {
      "interval": [
        [
          "2014-08-03T11:29:13Z",
          "2016-09-30T04:54:10Z"
        ]
      ]
    }
  },
  "osc:project": "OSIRIS Stereo View of 67P/Churyumov-Gerasimenko",
  "osc:status": "ongoing",
  "osc:type": "product",
  "osc:missions": [
    "Rosetta"
  ],
  "ssys:targets": [
    "67P/Churyumov-Gerasimenko"
  ],
  "ssys:target_class": "comet",
  "providers": [
    {
      "name": "CNES",
      "roles": [
        "licensor",
        "host"
      ],
      "url": "https://cnes.fr"
    },
    {
      "name": "Philippe Lamy",
      "description": "Leader of the project **3D VIEW OF THE ROSETTA COMET: OSIRIS STEREO VIEW OF 67P/CHURYUMOV-GERASIMENKO**",
      "roles": [
        "licensor",
        "processor"
      ]
    },
    {
      "name": "Guillaume Faury",
      "description": "Selection of the images, production of the stereoscopic views, and their characterization",
      "roles": [
        "licensor",
        "processor"
      ],
      "processing:lineage": "Stereo anaglyphs generated using StereoPhoto Maker and processed with Photoshop/GIMP",
      "processing:level": "L3",
      "processing:software": {
        "StereoPhotoMaker": "StereoPhoto Maker",
        "Photoshop": "Adobe Photoshop",
        "GIMP": "GIMP"
      }
    },
    {
      "name": "David Romeuf",
      "description": "Selection of the images, production of the stereoscopic views, and stereoscopic processing supervision",
      "roles": [
        "licensor",
        "processor"
      ],
      "processing:lineage": "Stereo anaglyphs generated using StereoPhoto Maker and processed with Photoshop/GIMP",
      "processing:level": "L3",
      "processing:software": {
        "StereoPhotoMaker": "StereoPhoto Maker",
        "Photoshop": "Adobe Photoshop",
        "GIMP": "GIMP"
      }
    },
    {
      "name": "Akkodis",
      "description": "Laurent Beigbeder, Daniel Popescu and K\u00e9a Khum for the realization of the first web site.",
      "roles": [
        "processor"
      ],
      "processing:lineage": "Projection of one image of the stereo pair on the SHAP7 3-dimensional shape model of comet 67P.",
      "processing:level": "L3/L4"
    }
  ],
  "keywords": [
    "Rosetta",
    "OSIRIS",
    "anaglyph",
    "comet 67P"
  ],
  "summaries": {
    "target:mean_spatial_scale": {
      "minimum": 3.04,
      "maximum": 620.78
    },
    "stereo-img:parallax": {
      "minimum": 0.13,
      "maximum": 14.32
    },
    "view:phase_angle": {
      "minimum": 0.99,
      "maximum": 118.84
    },
    "target:distance_surface": {
      "minimum": 1.59,
      "maximum": 332.32
    },
    "mission": [
      "Rosetta - ESA"
    ],
    "instruments": [
      "OSIRIS-NAC"
    ],
    "67p:localizations": [
      "Big lobe",
      "Neck",
      "Small lobe",
      "Whole nucleus"
    ],
    "67p:features": [
      "Abydos",
      "Agilkia",
      "Jets",
      "Pancake",
      "Philae",
      "Pits",
      "Rings"
    ],
    "67p:regions": [
      "Aker",
      "Anhur",
      "Anubis",
      "Anuket",
      "Apis",
      "Ash",
      "Aten",
      "Atum",
      "Babi",
      "Bastet",
      "Bes",
      "Geb",
      "Hapi",
      "Hathor",
      "Hatmehit",
      "Imhotep",
      "Khepry",
      "Khonsu",
      "Maat",
      "Maftet",
      "Neith",
      "Nut",
      "Serqet",
      "Seth",
      "Sobek",
      "Wosret"
    ]
  },
  "contacts": [
    {
      "name": "Philippe Guillemot",
      "organization": "CNES",
      "description": "PDSSP project head",
      "emails": [
        {
          "value": "philippe.guillemot@cnes.fr"
        }
      ]
    },
    {
      "name": "Jean-Christophe Malapert",
      "organization": "CNES",
      "description": "PDSSP Technical Lead",
      "emails": [
        {
          "value": "jean-christophe.malapert@cnes.fr"
        }
      ]
    },
    {
      "name": "Jo\u00eblle Durand",
      "organization": "CNES",
      "description": "Former Rosetta project head"
    },
    {
      "name": "Philippe Lamy",
      "organization": "LATMOS",
      "description": "OSIRIS Team Leader at the Laboratoire d'Astrophysique de Marseille, presently at Laboratoire Atmosph\u00e8res et Observations Spatiales",
      "emails": [
        {
          "value": "philippe.lamy@latmos.ipsl.fr"
        }
      ]
    },
    {
      "name": "Guillaume Faury",
      "organization": "IRAP",
      "description": "Signal and data processing Engineer in the group Signal-Images en Sciences de l\u2019Univers (SISU)",
      "emails": [
        {
          "value": "guillaume.faury@utoulouse.fr"
        }
      ]
    },
    {
      "name": "David Romeuf",
      "organization": "Universit\u00e9 Lyon 1",
      "description": "Research Engineer at Universit\u00e9 Claude Bernard Lyon 1",
      "emails": [
        {
          "value": "david.romeuf@univ-lyon1.fr"
        }
      ]
    }
  ],
  "links": [
    {
      "rel": "root",
      "href": "./collection.json",
      "type": "application/json",
      "title": "Rosetta anaglyph collection"
    },
    {
      "rel": "child",
      "href": "./catalogs/all-anaglyphs/catalog.json",
      "type": "application/json",
      "title": "All Anaglyphs"
    },
    {
      "rel": "child",
      "href": "./catalogs/favorites/catalog.json",
      "type": "application/json",
      "title": "Favorites"
    },
    {
      "rel": "child",
      "href": "./catalogs/nucleus-components/catalog.json",
      "type": "application/json",
      "title": "Nucleus components"
    },
    {
      "rel": "child",
      "href": "./catalogs/regions/catalog.json",
      "type": "application/json",
      "title": "Regions"
    },
    {
      "rel": "child",
      "href": "./catalogs/features/catalog.json",
      "type": "application/json",
      "title": "Features"
    },
    {
      "rel": "cite-as",
      "href": "https://doi.org/10.48550/arXiv.1903.02324",
      "title": "Lamy et al. 2019 - Stereo anaglyphs catalog"
    },
    {
      "rel": "cite-as",
      "href": "https://doi.org/10.1007/s11214-006-9128-4",
      "title": "Keller et al. 2007 - OSIRIS Camera System"
    },
    {
      "rel": "cite-as",
      "href": "https://doi.org/10.1007/s11214-006-9140-8",
      "title": "Glassmeier et al. 2007 - Rosetta Mission"
    },
    {
      "rel": "cite-as",
      "href": "https://doi.org/10.1051/0004-6361/201731798",
      "title": "Preusker et al. 2017 - SHAP7 model"
    },
    {
      "rel": "cite-as",
      "href": "https://doi.org/10.1051/0004-6361/201525985",
      "title": "Tubiana et al. 2015 - OSIRIS image quality"
    },
    {
      "rel": "cite-as",
      "href": "https://doi.org/10.1051/0004-6361/201628634e",
      "title": "El-Maarry et al. 2017 - Surface morphology"
    },
    {
      "rel": "cite-as",
      "href": "https://doi.org/10.1117/12.850044",
      "title": "Woods & Harris 2010 - 3D Image Viewing"
    },
    {
      "rel": "describedby",
      "href": "https://www.cosmos.esa.int/documents/772136/977578/67P_C-G_reference-frames_and_mapping-scheme_v2.pdf/e4c3b350-735a-4bed-85e3-26aba9f0e452",
      "type": "application/pdf",
      "title": "ESA - 67P Reference Frames"
    },
    {
      "rel": "describedby",
      "href": "https://rosetta-osiris.eu/documents/SCIENCE_USER_GUIDE.PDF",
      "type": "application/pdf",
      "title": "OSIRIS Science User Guide"
    },
    {
      "rel": "describedby",
      "href": "https://archives.esac.esa.int/psa/ftp/INTERNATIONAL-ROSETTA-MISSION/OSINAC/RO-C-OSINAC-3-PRL-67PCHURYUMOV-M05-V2.0/DOCUMENT/SIS/OSIRIS_L1_L2_SIS_V01.PDF",
      "type": "application/pdf",
      "title": "OSIRIS L1/L2 SIS"
    },
    {
      "rel": "license",
      "href": "https://spdx.org/licenses/CC-BY-NC-ND-4.0.html",
      "type": "text/html",
      "title": "CC-BY-NC-ND-4.0"
    },
    {
      "rel": "icon",
      "href": "https://rosetta-3dcomet.cnes.fr/assets/docs/CNES-footer.png",
      "type": "image/png",
      "title": "Collection icon"
    },
    {
      "rel": "xyz",
      "href": "https://xyz-rosetta.psl.pdssp.eu/{z}/{x}/{y}.png",
      "type": "image/png",
      "title": "Map of nucleus 67P/Churyumov-Gerasimenko"
    },
    {
      "rel": "related",
      "title": "Additional contributors",
      "href": "https://rosetta-3dcomet.cnes.fr/assets/CONTRIBUTORS.md",
      "type": "text/markdown"
    },
    {
      "rel": "credits",
      "title": "Credits",
      "href": "https://rosetta-3dcomet.cnes.fr/assets/CREDITS.md",
      "type": "text/markdown"
    },
    {
      "rel": "version-history",
      "href": "https://rosetta-3dcomet.cnes.fr/assets/HISTORY.md"
    }
  ],
  "assets": {
    "model": {
      "href": "https://rosetta-3dcomet.cnes.fr/assets/models/cg-dlr_spg-shap7-v1.0_125Kfacets_regions.obj",
      "type": "model/obj",
      "title": "67P 3D shape model",
      "description": "The localization of the anaglyphs on the nucleus of comet 67P/Churyumov\u2013Gerasimenko relies on the **SHAP7** 3-dimensional shape model constructed by Preusker et al. (2017), Astronomy ans Astrophysics DOI: https://doi.org/10.1051/0004-6361/201731798. However, this model has 44 million facets, far too much for this purpose. A decimated model with 125,000 (125k) facets as created by Thomas et al. (2018), Planetary and Space Science, DOI: https://doi.org/10.1016/j.pss.2018.05.019 was found adequate and also used for the visualization of the regions on the nucleus. Their original VTK file was converted to the OBJ format to facilitate visualization in general-purpose 3D software environments such as Blender, MeshLab and Unity. The OBJ file preserves the surface mesh geometry but may not include all scientific metadata present in the original VTK file (e.g., scalar fields or region definitions).\nThe newly developed high-resolution, three-dimensional shape model **67P-132M** of comet 67P/Churyumov\u2013Gerasimenko presented in this catalog has 132 million facets. It is available as a binary PLY file (7 GB) which can be obtained upon request from: David.Romeuf@univ-lyon1.fr, guillaume.faury@utoulouse.fr, or philippe.lamy@latmos.ipsl.fr"
    }
  },
  "bands": [
    {
      "name": "F16",
      "description": "Near UV",
      "eo:center_wavelength": 0.37,
      "eo:full_width_half_max": 0.04
    },
    {
      "name": "F22",
      "description": "Orange",
      "eo:center_wavelength": 0.65,
      "eo:full_width_half_max": 0.08
    },
    {
      "name": "F23",
      "description": "Green",
      "eo:center_wavelength": 0.54,
      "eo:full_width_half_max": 0.06
    },
    {
      "name": "F24",
      "description": "Blue",
      "eo:center_wavelength": 0.48,
      "eo:full_width_half_max": 0.07
    },
    {
      "name": "F27",
      "description": "Hydra",
      "eo:center_wavelength": 0.7,
      "eo:full_width_half_max": 0.02
    },
    {
      "name": "F28",
      "description": "Red",
      "eo:center_wavelength": 0.74,
      "eo:full_width_half_max": 0.06
    },
    {
      "name": "F32",
      "description": "F32",
      "eo:center_wavelength": 0.65,
      "eo:full_width_half_max": 0.08
    },
    {
      "name": "F41",
      "description": "Near IR",
      "eo:center_wavelength": 0.88,
      "eo:full_width_half_max": 0.06
    },
    {
      "name": "F51",
      "description": "Ortho",
      "eo:center_wavelength": 0.8,
      "eo:full_width_half_max": 0.04
    },
    {
      "name": "F61",
      "description": "Fe2O3",
      "eo:center_wavelength": 0.93,
      "eo:full_width_half_max": 0.04
    },
    {
      "name": "F71",
      "description": "IR",
      "eo:center_wavelength": 0.99,
      "eo:full_width_half_max": 0.03
    },
    {
      "name": "F82",
      "description": "Orange",
      "eo:center_wavelength": 0.65,
      "eo:full_width_half_max": 0.09
    },
    {
      "name": "F84",
      "description": "Blue",
      "eo:center_wavelength": 0.48,
      "eo:full_width_half_max": 0.07
    },
    {
      "name": "F88",
      "description": "Red",
      "eo:center_wavelength": 0.74,
      "eo:full_width_half_max": 0.06
    }
  ],
  "sci:publications": [
    {
      "doi": "10.48550/arXiv.1903.02324",
      "citation": "Lamy et al. 2019 - Stereo anaglyphs catalog"
    },
    {
      "doi": "10.1007/s11214-006-9128-4",
      "citation": "Keller et al. 2007 - OSIRIS Camera System"
    },
    {
      "doi": "10.1007/s11214-006-9140-8",
      "citation": "Glassmeier et al. 2007 - Rosetta Mission"
    },
    {
      "doi": "10.1051/0004-6361/201731798",
      "citation": "Preusker et al. 2017 - SHAP7 3D model"
    },
    {
      "doi": "10.1051/0004-6361/201525985",
      "citation": "Tubiana et al. 2015 - OSIRIS image quality"
    },
    {
      "doi": "10.1051/0004-6361/201628634e",
      "citation": "El-Maarry et al. 2017 - Surface morphology"
    },
    {
      "doi": "10.1117/12.850044",
      "citation": "Woods & Harris 2010 - 3D Image Viewing"
    }
  ],
  "acknowledgment": "The stereo anaglyphs were produced through a collaboration between LAM and CNES with support from LATMOS, using OSIRIS images archived at ESA/PSA"
}