{
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    "page_type": "Produced Video",
    "title": "Photon Phriday: One Phull Orbit",
    "description": "Follow an entire orbit of the ICESat-2 mission as it measures the elevation of oceans, sea ice, mountains and islands around the Earth. This video shows the same orbit (ground reference track 1352) on two different dates (December 26, 2018, and September 24, 2019) to capture the clearest, least cloudy data examples. Each frame shows a different aspect of the orbit. The upper left frame is the entire photon cloud standardized on a global scale. The upper right frame shows selected photon cloud granules that sync with the global scale within a degree in order to show more spatial detail. In many cases, the zoomed-in photon clouds in this frame have been slowed down in order to show details clearly. The bottom right frame shows video examples of the terrain that correspond with where the orbit is. The bottom left terrain is the continuous orbit on a blue marble with labels for countries and other geographic features that represent where the orbit went over or very nearby. || ",
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        "alt_text": "Music: \"Sun Age,\" \"Data Visions,\" \"Water Memory,\" Universal Production Music.Complete transcript available.",
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                "employer": "NASA/GSFC"
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                "employer": "NASA/GSFC"
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    "related": [
        {
            "id": 13301,
            "url": "https://svs.gsfc.nasa.gov/13301/",
            "page_type": "Produced Video",
            "title": "Photon Phriday",
            "description": "Photon Phriday is a weekly look at what ICESat-2 is measuring as it orbits the Earth. || ",
            "release_date": "2019-08-29T12:00:00-04:00",
            "update_date": "2025-06-20T12:10:44.341874-04:00",
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                "media_type": "Image",
                "alt_text": "Cascade MountainsMusic: \"It's Over,\" Universal Production MusicComplete transcript available.",
                "width": 1661,
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        },
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            "id": 11726,
            "url": "https://svs.gsfc.nasa.gov/11726/",
            "page_type": "Produced Video",
            "title": "ATLAS: Laser Focus",
            "description": "Laser Focus: TimingDeputy Systems Engineer Phil Luers explains how the ATLAS transmitter and receiver subsystems come together to calculate the timing of photons, which, in turn, measure the elevation of ice.Complete transcript available.Music: \"Electric Works\" by Philippe Lhommet, Koka Media; \"From Source to Sea\" by Christophe Lebled, Pierre Jacquot, Koka Media. || Timing_still_print.jpg (1024x575) [52.8 KB] || Timing_still_searchweb.png (180x320) [51.0 KB] || Timing_still_thm.png (80x40) [4.1 KB] || 11726_Timing_prores.webm (1920x1080) [26.0 MB] || 11726_Timing_prores_appletv.m4v (1280x720) [111.3 MB] || 11726_Timing_prores_appletv_subtitles.m4v (1280x720) [111.4 MB] || 11726_Timing_h264.mp4 (1920x1080) [231.3 MB] || YOUTUBE_1080_11726_Timing_prores_youtube_1080.mp4 (1920x1080) [369.1 MB] || 11726_Timing_prores_youtube_hq.mov (1920x1080) [870.9 MB] || Timing.en_US.srt [4.3 KB] || Timing.en_US.vtt [4.3 KB] || 11726_Timing_prores.mov (1920x1080) [5.9 GB] || 11726_Timing.hwshow [64 bytes] || ",
            "release_date": "2015-01-07T11:00:00-05:00",
            "update_date": "2025-01-05T00:17:16.505055-05:00",
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                "filename": "G2015-004_LaserFocus_nasaportal00227_print.jpg",
                "media_type": "Image",
                "alt_text": "Laser Focus: The TransmitterOpto-Mechanical Engineer Tyler Evans illustrates how the laser is transmitted from the ATLAS instrument on the ICESat-2 spacecraft.For complete transcript, click here.",
                "width": 1024,
                "height": 576,
                "pixels": 589824
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        }
    ],
    "sources": [
        {
            "id": 4848,
            "url": "https://svs.gsfc.nasa.gov/4848/",
            "page_type": "Visualization",
            "title": "ICESat-2 Ground Track",
            "description": "This is a long, slow visualization showing one complete ICESat-2 ground track over the course of 6 minutes. || is2_singleTrack_04.03700_print.jpg (1024x576) [122.6 KB] || is2_singleTrack_04.03700_searchweb.png (320x180) [73.5 KB] || is2_singleTrack_04.03700_thm.png (80x40) [6.5 KB] || icesat2_single_track (1920x1080) [0 Item(s)] || is2_singleTrack_1080p30.webm (1920x1080) [42.9 MB] || is2_singleTrack_1080p30.mp4 (1920x1080) [108.1 MB] || is2_singleTrack_1080p30.mp4.hwshow [189 bytes] || ",
            "release_date": "2020-08-11T00:00:00-04:00",
            "update_date": "2025-01-06T00:18:23.291358-05:00",
            "main_image": {
                "id": 383581,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004848/is2_singleTrack_04.03700_print.jpg",
                "filename": "is2_singleTrack_04.03700_print.jpg",
                "media_type": "Image",
                "alt_text": "This is a long, slow visualization showing one complete ICESat-2 ground track over the course of 6 minutes. ",
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                "height": 576,
                "pixels": 589824
            }
        },
        {
            "id": 4373,
            "url": "https://svs.gsfc.nasa.gov/4373/",
            "page_type": "Visualization",
            "title": "ICESat-2 Orbit",
            "description": "ICESat-2 orbiting Earth: starting with global view building up ground track, then riding the satellite view, then back to a global view with full ground track || icesat2_orbit26.2100_print.jpg (1024x576) [114.4 KB] || icesat2_orbit26.2100_searchweb.png (320x180) [77.7 KB] || icesat2_orbit26.2100_thm.png (80x40) [5.2 KB] || icesat2_orbit_long_720p30.mp4 (1280x720) [42.8 MB] || long (1920x1080) [0 Item(s)] || long (1280x720) [0 Item(s)] || icesat2_orbit_long_1080p30.webm (1920x1080) [18.2 MB] || icesat2_orbit_long_1080p30.mp4 (1920x1080) [104.5 MB] || icesat2_orbit_long_360p30.m4v (640x360) [27.8 MB] || long (3840x2160) [0 Item(s)] || icesat2_orbit_long_2160p30.mp4 (3840x2160) [406.6 MB] || ",
            "release_date": "2017-11-03T15:00:00-04:00",
            "update_date": "2025-05-14T00:06:30.477001-04:00",
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                "media_type": "Image",
                "alt_text": "ICESat-2 orbiting Earth: starting with global view building up ground track, then riding the satellite view, then back to a global view with full ground track",
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}