{
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    "next": null,
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    "results": [
        {
            "id": 5443,
            "url": "https://svs.gsfc.nasa.gov/5443/",
            "result_type": "Visualization",
            "release_date": "2024-12-17T00:00:00-05:00",
            "title": "Heliophysics Sentinels 2024",
            "description": "There have been some changes since the 2022 Heliophysics Fleet.  AIM and ICON have been decommissioned while two other instruments have been added.  AWE is an instrument mounted on the ISS, and RAD is a particle detector on the Curiosity Mars rover.  As of Winter 2024, here's a tour of the NASA Heliophysics fleet from the near-Earth satellites out to the Voyagers beyond the heliopause. || ",
            "hits": 82
        },
        {
            "id": 5177,
            "url": "https://svs.gsfc.nasa.gov/5177/",
            "result_type": "Visualization",
            "release_date": "2023-12-07T00:00:00-05:00",
            "title": "Polarimetry Data (HARP) and PACE orbit",
            "description": "This visualization begins with a view of several HARP sample data swaths depicting total radiance and polarized radiance with feature callouts.  The camera then pulls back to reveal the PACE spacecraft orbit HARP2 instrument swath (shown in orange). || pace_polarimetry.02020_print.jpg (1024x576) [141.8 KB] || pace_polarimetry.02020_searchweb.png (320x180) [70.1 KB] || pace_polarimetry.02020_thm.png (80x40) [5.3 KB] || pace_polarimetry_1080p60.mp4 (1920x1080) [43.4 MB] || pace_polarimetry (3840x2160) [512.0 KB] || pace_polarimetry_2160p30.mp4 (3840x2160) [118.7 MB] || pace_polarimetry_2160p60.mp4 (3840x2160) [126.6 MB] || pace_polarimetry_prores.mov (3840x2160) [6.8 GB] || ",
            "hits": 36
        },
        {
            "id": 4898,
            "url": "https://svs.gsfc.nasa.gov/4898/",
            "result_type": "Visualization",
            "release_date": "2022-11-23T00:00:00-05:00",
            "title": "Heliophysics Sentinels 2022",
            "description": "There has been one significant change since the 2020 Heliophysics Fleet.  SET has been decommissioned.  As of Fall 2022, here's a tour of the NASA Heliophysics fleet from the near-Earth satellites out to the Voyagers beyond the heliopause.Excepting the Voyager missions, the satellite orbits are color coded for their observing program:Magenta: TIM (Thermosphere, Ionosphere, Mesosphere) observationsYellow: solar observations and imageryCyan: Geospace and magnetosphereViolet: Heliospheric observations || ",
            "hits": 44
        },
        {
            "id": 4887,
            "url": "https://svs.gsfc.nasa.gov/4887/",
            "result_type": "Visualization",
            "release_date": "2021-03-01T10:00:00-05:00",
            "title": "Heliophysics Sentinels 2020 (Forecast Version)",
            "description": "In addition to the NASA missions used in research for space weather (see 2020 Heliophysics Fleet) there are additional missions operated by NOAA used for space weather forecasting.  As of spring 2020, here's a tour of the NASA and NOAA Heliophysics fleets from the near-Earth satellites out to the inner solar system.The satellite orbits are color coded for their observing program:Magenta: TIM (Thermosphere, Ionosphere, Mesosphere) observationsYellow: solar observations and imageryCyan: Geospace and magnetosphereViolet: Heliospheric observations || ",
            "hits": 32
        },
        {
            "id": 4822,
            "url": "https://svs.gsfc.nasa.gov/4822/",
            "result_type": "Visualization",
            "release_date": "2020-09-15T10:00:00-04:00",
            "title": "Heliophysics Sentinels 2020",
            "description": "There have been few changes since the 2018 Heliophysics Fleet.  Van Allen Probes and SORCE have been decommissioned, while Solar Orbiter, ICON and SET have been added.  As of spring 2020, here's a tour of the NASA Heliophysics fleet from the near-Earth satellites out to the Voyagers beyond the heliopause.Excepting the Voyager missions, the satellite orbits are color coded for their observing program:Magenta: TIM (Thermosphere, Ionosphere, Mesosphere) observationsYellow: solar observations and imageryCyan: Geospace and magnetosphereViolet: Heliospheric observations || ",
            "hits": 42
        },
        {
            "id": 4745,
            "url": "https://svs.gsfc.nasa.gov/4745/",
            "result_type": "Visualization",
            "release_date": "2020-03-03T11:00:00-05:00",
            "title": "Landsat with Sentinel - Global Coverage",
            "description": "This visualization depicts the orbits and data swaths of the Landsat 8, Landsat 9, Sentinel 2a, and Sentinel 2b satellites.  The satellites appear one at a time with their respective data swaths. As time progresses throughout the visualization, the satellites ‘paint’ the globe with imagery to show how the four spacecraft work together to build a complete picture of the Earth. || landsat_w_sentinel_v2_ls8ls9sAsB_fade_08_60fps_4k_3240_print.jpg (1024x576) [55.5 KB] || landsat_w_sentinel_v2_ls8ls9sAsB_fade_08_60fps_4k_3240_searchweb.png (320x180) [62.5 KB] || landsat_w_sentinel_v2_ls8ls9sAsB_fade_08_60fps_4k_3240_thm.png (80x40) [4.5 KB] || landsat_w_sentinel_ls8ls9sAsB_fade_1080p60.mp4 (1920x1080) [29.1 MB] || landsat_w_sentinel_ls8ls9sAsB_fade_1080p60.webm (1920x1080) [8.1 MB] || landsat_w_sentinel_v2_ls8ls9sAsB_fade_08_60fps_4k (3840x2160) [512.0 KB] || landsat_w_sentinel_ls8ls9sAsB_fade_2160p30.mp4 (3840x2160) [82.6 MB] || ",
            "hits": 188
        },
        {
            "id": 31049,
            "url": "https://svs.gsfc.nasa.gov/31049/",
            "result_type": "Hyperwall Visual",
            "release_date": "2019-08-07T00:00:00-04:00",
            "title": "The A-Train & C-Train",
            "description": "A-Train_C-Train_TimeSeps2018_HW || A-Train_C-Train_TimeSeps2018_HW_print.jpg (1024x576) [932.9 KB] || A-Train_C-Train_TimeSeps2018_HW.jpg (5760x3240) [13.3 MB] || A-Train_C-Train_TimeSeps2018_HW_searchweb.png (320x180) [89.3 KB] || A-Train_C-Train_TimeSeps2018_HW_thm.png (80x40) [6.8 KB] || the-a-train-c-train-time-seps.hwshow [315 bytes] || ",
            "hits": 89
        },
        {
            "id": 4360,
            "url": "https://svs.gsfc.nasa.gov/4360/",
            "result_type": "Visualization",
            "release_date": "2018-12-10T11:00:00-05:00",
            "title": "Heliophysics Sentinels 2018",
            "description": "This movie presents the trajectories of the heliophysics fleet from close to Earth to out beyond the heliopause. || Sentinels2018.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_print.jpg (1024x576) [74.5 KB] || Sentinels2018.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_searchweb.png (180x320) [65.6 KB] || Sentinels2018.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_thm.png (80x40) [5.1 KB] || Sentinels2018.Sentinels2Voyager_1080p30.mp4 (1920x1080) [40.3 MB] || Sentinels2018.Sentinels2Voyager_1080p30.webm (1920x1080) [6.3 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || Sentinels2018.Sentinels2Voyager_2160p30.mp4 (3840x2160) [125.7 MB] || Sentinels2018.Sentinels2Voyager_1080p30.mp4.hwshow || ",
            "hits": 46
        },
        {
            "id": 4653,
            "url": "https://svs.gsfc.nasa.gov/4653/",
            "result_type": "Visualization",
            "release_date": "2018-06-05T10:00:00-04:00",
            "title": "Parker Solar Probe and Solar Orbiter Trajectories",
            "description": "This visualization opens near Earth for the launch of Parker Solar Probe August 12,  2018.  Then the camera moves around the Sun to match of with Earth again for the launch of Solar Orbiter in 2020.  After that, the camera moves in a slow drift around the Sun as the orbits evolve.  The Parker Solar Probe orbit fades out after the nominal end of mission in 2025.  This version has longer orbit trails to better view orbit changes, and the red along the orbits indicate the nominal science operations portions of the missions. || ParkerAndSolarOrbiter.InnerTourDeluxe.HAE.AU.clockSlate_EarthTarget.HD1080i.02000_print.jpg (1024x576) [100.7 KB] || DeluxeTour (1920x1080) [0 Item(s)] || ParkerAndSolarOrbiter.InnerTourDeluxe.HD1080i_p30.webm (1920x1080) [17.6 MB] || ParkerAndSolarOrbiter.InnerTourDeluxe.HD1080i_p30.mp4 (1920x1080) [179.8 MB] || DeluxeTour (3840x2160) [0 Item(s)] || ParkerAndSolarOrbiter.InnerTourDeluxe_2160p30.mp4 (3840x2160) [489.0 MB] || ParkerAndSolarOrbiter.InnerTourDeluxe.HD1080i_p30.mp4.hwshow [270 bytes] || ParkerAndSolarOrbiter.InnerTourDeluxe_2160p30.mp4.hwshow [211 bytes] || ",
            "hits": 246
        },
        {
            "id": 4642,
            "url": "https://svs.gsfc.nasa.gov/4642/",
            "result_type": "Visualization",
            "release_date": "2018-05-07T00:00:00-04:00",
            "title": "Kepler's Laws of Planetary Motion Described Using Earth Satellites",
            "description": "This visualization introduces Kepler’s three laws of planetary motion using satellites in orbit around Earth.  Several satellite orbits of varying characteristics are examined to see how Kepler’s laws apply.  This version includes titles and labels. This video is also available on our YouTube channel. || KeplersLaws_wTitles_5890_print.jpg (1024x576) [61.8 KB] || KeplersLaws_wTitles_5890_searchweb.png (320x180) [24.3 KB] || KeplersLaws_wTitles_5890_thm.png (80x40) [3.6 KB] || KeplersLaws_wTitles (1920x1080) [0 Item(s)] || KeplersLaws_wTitles_1080p30.mp4 (1920x1080) [70.0 MB] || KeplersLaws_wTitles_1080p30.webm (1920x1080) [29.5 MB] || captions_silent.25417.en_US.srt [43 bytes] || captions_silent.25417.en_US.vtt [56 bytes] || ",
            "hits": 379
        },
        {
            "id": 4589,
            "url": "https://svs.gsfc.nasa.gov/4589/",
            "result_type": "Visualization",
            "release_date": "2017-10-25T10:00:00-04:00",
            "title": "Heliophysics Sentinels 2017",
            "description": "This visualization starts from near Earth and the Earth orbiting satellite fleet out to the Moon, then past the Sun-Earth Lagrange point 1 to out beyond the heliopause.  This is the long-play version. || Sentinels2017.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_print.jpg (1024x576) [136.1 KB] || Sentinels2017.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_searchweb.png (180x320) [84.6 KB] || Sentinels2017.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_thm.png (80x40) [6.0 KB] || Sentinels2017.Sentinels2Voyager.HD1080i_p30.webm (1920x1080) [12.4 MB] || SlowPlay (1920x1080) [0 Item(s)] || Sentinels2017.Sentinels2Voyager.HD1080i_p30.mp4 (1920x1080) [111.6 MB] || SlowPlay (3840x2160) [0 Item(s)] || Sentinels2017.Sentinels2Voyager_2160p30.mp4 (3840x2160) [336.2 MB] || Sentinels2017.Sentinels2Voyager.HD1080i_p30.mp4.hwshow [209 bytes] || ",
            "hits": 28
        },
        {
            "id": 4288,
            "url": "https://svs.gsfc.nasa.gov/4288/",
            "result_type": "Visualization",
            "release_date": "2015-06-10T00:00:00-04:00",
            "title": "The 2015 Earth-Orbiting Heliophysics Fleet",
            "description": "Movie showing the heliosphysics missions from near Earth orbit out to the orbit of the Moon.This video is also available on our YouTube channel. || Helio2015A.MMStour.slate_RigRHS.HD1080i.0500_print.jpg (1024x576) [112.6 KB] || Helio2015A.MMStour.HD1080.webm (1920x1080) [6.7 MB] || WithoutTimeStamp (1920x1080) [128.0 KB] || Helio2015A.MMStour.HD1080.mov (1920x1080) [196.3 MB] || Helio2015_4288.pptx [198.6 MB] || Helio2015_4288.key [201.3 MB] || ",
            "hits": 62
        },
        {
            "id": 11706,
            "url": "https://svs.gsfc.nasa.gov/11706/",
            "result_type": "Produced Video",
            "release_date": "2014-10-16T17:07:00-04:00",
            "title": "Comet Siding Spring: Live Shots 2014",
            "description": "B-roll used to support Comet Siding Spring Live shot on Friday, October 17, 2014 || LS_Broll_Pic.png (1682x940) [1.6 MB] || LS_Broll_Pic_print.jpg (1024x572) [94.6 KB] || LS_Broll_Pic_web.jpg (319x178) [16.5 KB] || LS_Broll_Pic_searchweb.png (320x180) [74.1 KB] || LS_Broll_Pic_web.png (320x178) [73.6 KB] || LS_Broll_Pic_thm.png (80x40) [10.7 KB] || Broll_Comet_Siding_Spring_LS.m4v (960x540) [55.3 MB] || Broll_Comet_Siding_Spring_LS_youtube_hq.mov (1280x720) [60.9 MB] || Broll_Comet_Siding_Spring_LS_prores.mov (1280x720) [1.9 GB] || Broll_Comet_Siding_Spring_LS_1280x720.wmv (1280x720) [59.0 MB] || Broll_Comet_Siding_Spring_LS.webm (960x540) [14.0 MB] || Broll_Comet_Siding_Spring_LS.mov (640x360) [49.6 MB] || Broll_Comet_Siding_Spring_LS_720x480.wmv (720x480) [47.7 MB] || Broll_Comet_Siding_Spring_LS.mp4 (320x240) [9.3 MB] || ",
            "hits": 34
        },
        {
            "id": 4127,
            "url": "https://svs.gsfc.nasa.gov/4127/",
            "result_type": "Visualization",
            "release_date": "2013-12-16T12:00:00-05:00",
            "title": "The 2013 Earth-Orbiting Heliophysics Fleet",
            "description": "There've been a few changes since the 2012 Earth-Orbiting Heliophysics Fleet. As of Fall of 2013, here's a tour of the NASA Near-Earth Heliophysics fleet, covering the space from near-Earth orbit out to the orbit of the Moon.The satellite orbits are color coded for their observing program:Magenta: TIM (Thermosphere, Ionosphere, Mesosphere) observationsYellow: solar observations and imageryCyan: Geospace and magnetosphereViolet: Heliospheric observationsNear-Earth Fleet:Hinode: Observes the Sun in multiple wavelengths up to x-rays. SVS pageRHESSI : Observes the Sun in x-rays and gamma-rays. SVS pageTIMED: Studies the upper layers (40-110 miles up) of the Earth's atmosphere.FAST: Measures particles and fields in regions where aurora form.CINDI: Measures interactions of neutral and charged particles in the ionosphere. SORCE: Monitors solar intensity across a broad range of the electromagnetic spectrum.AIM: Images and measures noctilucent clouds. SVS pageVan Allen Probes: Two probes moving along the same orbit esigned to study the impact of space weather on Earth's radiation belts. SVS pageTWINS: Two Wide-Angle Imaging Neutral-Atom Spectrometers (TWINS) are two probes observing the Earth with neutral atom imagers.IRIS: Interface Region Imaging Spectrograph is designed to take high-resolution spectra and images of the region between the solar photosphere and solar atmosphere.Geosynchronous Fleet:SDO: Solar Dynamics Observatory keeps the Sun under continuous observation at 16 megapixel resolution.GOES: The newest GOES satellites include a solar X-ray imager operated by NOAA.Geospace Fleet:Geotail: Conducts measurements of electrons and ions in the Earth's magnetotail. Cluster: This is a group of four satellites which fly in formation to measure how particles and fields in the magnetosphere vary in space and time. SVS pageTHEMIS: This is a fleet of three satellites to study how magnetospheric instabilities produce substorms. Two of the original five satellites were moved into lunar orbit to become ARTEMIS. SVS page IBEX: The Interstellar Boundary Explorer measures the flux of neutral atoms from the heliopause.Lunar Orbiting FleetARTEMIS: Two of the THEMIS satellites were moved into lunar orbit to study the interaction of the Earth's magnetosphere with the Moon. || ",
            "hits": 73
        },
        {
            "id": 4016,
            "url": "https://svs.gsfc.nasa.gov/4016/",
            "result_type": "Visualization",
            "release_date": "2012-12-03T00:00:00-05:00",
            "title": "Global Precipitiation Measurement Core Satellite Instruments",
            "description": "The Global Precipitation Measurement (GPM) mission is co-led by NASA and the Japan Aerospace Exploration Agency (JAXA). NASA and JAXA will provide a GPM Core satellite to serve as a reference for precipitation measurements made by a constellation of satellites. The GPM Core satellite carries two instruments: a state-of-the-art radiometer called the GPM Microwave Imager (GMI) and the first space-borne Dual-frequency Precipitation Radar (DPR), which sees the 3D structure of falling rain and snow. The DPR and GMI work in concert to provide a unique database that will be used to improve the accuracy and consistency of measurements from all partner satellites, which will then be combined into the uniform global precipitation dataset. This animation shows the scanning capabilities of the GMI and DPR onboard the GPM Core satellite. Heavy rainfall is shown in red and light rainfall in blue. The DPR shows 3D precipitation in a midlatitude storm from two overlapping swaths. The Ka-band frequency scans across a region of 78 miles (125 kilometers) and is nested within the wider scan of the Ku-band frequency of 147 miles (245 kilometers). JAXA and Japan's National Institute of Information and Communications Technology (NICT) built the DPR. The GMI, shown as the flat precipitation values, constantly scans a region 550 miles (885 kilometers) across. The Ball Aerospace and Technology Corporation built the GMI under contract with NASA Goddard Space Flight Center. The GPM Core observatory is currently being built and tested at NASA's Goddard Space Flight Center in Greenbelt, Md. It is scheduled to launch from Tanegashima space center in Japan in early 2014. || ",
            "hits": 46
        },
        {
            "id": 3966,
            "url": "https://svs.gsfc.nasa.gov/3966/",
            "result_type": "Visualization",
            "release_date": "2012-09-20T00:00:00-04:00",
            "title": "Heliospheric Future: Parker Solar Probe (formerly Solar Probe Plus) & Solar Orbiter",
            "description": "Two future missions scheduled for detailed studies of the Sun and solar atmosphere are Parker Solar Probe and Solar Orbiter.Parker Solar Probe  will move in a highly-elliptical orbit, using gravity-assists from Venus to move it closer to the Sun with each pass. The goal is to get the spacecraft to fly through the corona at a distance of 9.5 solar radii.Solar Orbiter will use Earth and Venus gravity assists to move into a relatively circular orbit, inside the orbit of Mercury for monitoring the Sun. || ",
            "hits": 49
        },
        {
            "id": 3969,
            "url": "https://svs.gsfc.nasa.gov/3969/",
            "result_type": "Visualization",
            "release_date": "2012-09-20T00:00:00-04:00",
            "title": "The 2012 Earth-Orbiting Heliophysics Fleet",
            "description": "Since Sentinels of the Heliosphere in 2008, there have been a few new missions, and a few missions have been shut down. As of Fall of 2012, here's a tour of the NASA Near-Earth Heliophysics fleet, covering the space from near-Earth orbit out to the orbit of the Moon.Revision (November 9, 2012): The RBSP mission has been renamed the Van Allen Probes. NASA Press Release.The satellite orbits are color coded for their observing program:Magenta: TIM (Thermosphere, Ionosphere, Mesosphere) observationsYellow: solar observations and imageryCyan: Geospace and magnetosphereViolet: Heliospheric observationsNear-Earth Fleet:Hinode: Observes the Sun in multiple wavelengths up to x-rays. SVS pageRHESSI : Observes the Sun in x-rays and gamma-rays. SVS pageTIMED: Studies the upper layers (40-110 miles up) of the Earth's atmosphere.FAST: Measures particles and fields in regions where aurora form.CINDI: Measures interactions of neutral and charged particles in the ionosphere. SORCE: Monitors solar intensity across a broad range of the electromagnetic spectrum.AIM: Images and measures noctilucent clouds. SVS pageRBSP: (Renamed the Van Allen Probes) Designed to study the impact of space weather on Earth's radiation belts. SVS pageGeosynchronous Fleet:SDO: Solar Dynamics Observatory keeps the Sun under continuous observation at 16 megapixel resolution.GOES: The newest GOES satellites include a solar X-ray imager operated by NOAA.Geospace Fleet:Geotail: Conducts measurements of electrons and ions in the Earth's magnetotail. Cluster: This is a group of four satellites which fly in formation to measure how particles and fields in the magnetosphere vary in space and time. SVS pageTHEMIS: This is a fleet of three satellites to study how magnetospheric instabilities produce substorms. Two of the original five satellites were moved into lunar orbit to become ARTEMIS. SVS page IBEX: The Interstellar Boundary Explorer measures the flux of neutral atoms from the heliopause.Lunar Orbiting FleetARTEMIS: Two of the THEMIS satellites were moved into lunar orbit to study the interaction of the Earth's magnetosphere with the Moon.Note: A number of near-Earth missions had their orbits generated from Two-Line orbital elements valid in July 2012. Orbit perturbations since then may result in significant deviation from the actual satellite position for the time frame of this visualization. || ",
            "hits": 57
        },
        {
            "id": 3968,
            "url": "https://svs.gsfc.nasa.gov/3968/",
            "result_type": "Visualization",
            "release_date": "2012-08-03T00:00:00-04:00",
            "title": "GPM Constellation Hyperwall Show",
            "description": "(Note: this animation is a hyperwall version of animation #3971.)Nine U.S. and international satellites will soon be united by the Global Precipitation Measurement (GPM) mission, a partnership co-led by NASA and the Japan Aerospace Exploration Agency (JAXA). NASA and JAXA will provide the GPM Core satellite to serve as a reference for precipitation measurements made by this constellation of satellites, which will be combined into a single global dataset continually refreshed every three hours.While each partner satellite has its own mission objective, they all carry a type of instrument called a radiometer that measures radiated energy from rainfall and snowfall. The GPM Core satellite carries two instruments: a state-of-the-art radiometer called the GPM Microwave Imager (GMI) and the first space-borne Dual-frequency Precipitation Radar (DPR), which sees the 3D structure of falling rain and snow. The DPR and GMI work in concert to provide a unique database that will be used to improve the accuracy and consistency of measurements from all partner satellites, which will then be combined into the uniform global precipitation dataset.In this animation the orbit paths of the partner satellites of the GPM constellation fill in blue as the instruments pass over Earth. Rainfall appears light blue for light rain, yellow for moderate, and red for heavy rain. Partner satellites are traced in green and purple, and the GPM Core is traced in red.The GPM Core observatory is currently being built and tested at NASA's Goddard Space Flight Center in Greenbelt, Md. It is scheduled to launch from Tanegashima space center in Japan in early 2014. || ",
            "hits": 22
        },
        {
            "id": 3971,
            "url": "https://svs.gsfc.nasa.gov/3971/",
            "result_type": "Visualization",
            "release_date": "2012-05-28T12:00:00-04:00",
            "title": "Global Precipitation Measurement (GPM) Constellation",
            "description": "Nine U.S. and international satellites will soon be united by the Global Precipitation Measurement (GPM) mission, a partnership co-led by NASA and the Japan Aerospace Exploration Agency (JAXA). NASA and JAXA will provide the GPM Core satellite to serve as a reference for precipitation measurements made by this constellation of satellites, which will be combined into a single global dataset continually refreshed every three hours. While each partner satellite has its own mission objective, they all carry a type of instrument called a radiometer that measures radiated energy from rainfall and snowfall. The GPM Core satellite carries two instruments: a state-of-the-art radiometer called the GPM Microwave Imager (GMI) and the first space-borne Dual-frequency Precipitation Radar (DPR), which sees the 3D structure of falling rain and snow. The DPR and GMI work in concert to provide a unique database that will be used to improve the accuracy and consistency of measurements from all partner satellites, which will then be combined into the uniform global precipitation dataset. In this animation the orbit paths of the partner satellites of the GPM constellation fill in blue as the instruments pass over Earth. Rainfall appears light blue for light rain, yellow for moderate, and red for heavy rain. Partner satellites are traced in green and purple, and the GPM Core is traced in red. The GPM Core observatory is currently being built and tested at NASA's Goddard Space Flight Center in Greenbelt, Md. It is scheduled to launch from Tanegashima space center in Japan in early 2014. || ",
            "hits": 42
        },
        {
            "id": 3951,
            "url": "https://svs.gsfc.nasa.gov/3951/",
            "result_type": "Visualization",
            "release_date": "2012-05-08T00:00:00-04:00",
            "title": "The Van Allen Probes (formerly Radiation Belt Storm Probes - RBSP) Explore the Earth's Radiation Belts",
            "description": "The Radiation Belt Storm Probe (RBSP) is actually two satellites that will travel on a elliptical orbit around the Earth, ranging between 1.5 and 6 Earth radii. This range covers the inner region of the Earth's geomagnetic field. In this region, many of the magnetic field lines intersect the surface of the Earth in the north and south. This means that lower energy ions and electrons, some 'boiled off' the Earth's ionosphere by solar ultraviolet radiation, can be trapped along these field lines. The charged particles spend their time bouncing between the 'mirror points' in the Earth's magnetic field. This trapped population forms the radiation belts around the Earth. The radiation created by this charged particle population can be hazardous to satellites and astronauts so it is important to understand their characteristics. || ",
            "hits": 186
        },
        {
            "id": 3942,
            "url": "https://svs.gsfc.nasa.gov/3942/",
            "result_type": "Visualization",
            "release_date": "2012-04-19T00:00:00-04:00",
            "title": "The Van Allen Probes (formerly RBSP for Radiation Belt Storm Probes) in Earth Orbit",
            "description": "A basic visualization illustrating the orbit of RBSP around the Earth. This pair of probes will orbit the Earth between about 1.5 and 6 Earth radii to cover the region of the geomagnetically trapped particle radiation. || ",
            "hits": 77
        },
        {
            "id": 3621,
            "url": "https://svs.gsfc.nasa.gov/3621/",
            "result_type": "Visualization",
            "release_date": "2009-07-27T00:00:00-04:00",
            "title": "LRO Transition from Earth-Centered to Moon-Centered Coordinates",
            "description": "This animation illustrates the solution to a human factors problem in the visualization of an orbit path, in this case the launch and lunar orbit insertion of the Lunar Reconnaissance Orbiter satellite.The visualization (found HERE) shows LRO orbiting the Earth, traveling from the Earth to the moon, and entering lunar orbit. Throughout the visualization, a trail is drawn to show LRO's path. This trail is a history of LRO's motion.The viewer's expectation is that LRO first travels in a circular orbit centered on the Earth, then follows a smoothly curving path connecting the Earth to the moon, and finally enters an elliptical orbit around the moon. The problem for the animator is that an accurate trail satisfying all of these expectations is impossible to draw in a single coordinate system. A trail drawn in Earth-centered coordinates forms a looping, spring-like path when LRO enters lunar orbit, and a trail drawn in moon body-fixed coordinates becomes disconnected from the Earth and precesses through space.Simply switching from one coordinate system to the other would make the trail appear to jump suddenly and dramatically. Creating a hybrid trail would leave a visually confusing elbow in LRO's path.The solution illustrated here is to morph the trail from one coordinate system to the other. The blue trail is the Earth-centered path, the orange trail is the moon body-fixed path, and the white trail is the morph between the two. In the visualization, the Earth trail shortens, disconnecting it from the Earth, and then morphs over about 400 frames into the moon body-fixed trail. With careful timing, the result is a visually seamless transition from one coordinate system to the other.Notice that the difference in coordinate systems creates no ambiguity about the present position of LRO at any given time. LRO is always at the intersection of the trails. The problem arises when attempting to depict the history of its motion. That history takes different shapes in coordinate systems that move relative to one another.An animation showing LRO's entire path in both coordinate systems simultaneously can be found HERE. || ",
            "hits": 159
        },
        {
            "id": 3618,
            "url": "https://svs.gsfc.nasa.gov/3618/",
            "result_type": "Visualization",
            "release_date": "2009-07-17T00:00:00-04:00",
            "title": "LRO in Earth Centered and Moon Centered Coordinates",
            "description": "This visualization shows the Lunar Reconnaissance Orbiter (LRO) orbit insertion from two different points of view (i.e., coordinate systems): Earth centered inertial coordinates and moon centered fixed coordinates. Orbit trails are shown in bright colors where the orbits have been and in darker colors for where the orbits will be. At any particular time, LRO is exactly at the intersection of the two orbit trail curves. The Earth centered coordinates are in blue and the moon centered coordinate are in orange.Why are there two different trails?Because the moon is moving, the moon centered coordinate system is moving. If the moon was stationary with respect to the Earth, both trails would look the same; but since the moon is moving, the moon's trail is always moving and the trails look different.Think of LRO orbiting the moon. From the moon's perspective, it's just going in an ellipse around the moon. In this case, the observation point (the moon) is moving with LRO. But, from the Earth's perspective, if you plotted out the trail of LRO, you would get a series of loops as LRO goes around the moon and as the moon moves through the sky.Animating an orbit trail that changes between two discrete coordinate systems is a challenge. A discontinuity arises if you just switch over from one trail to another. To animate a smooth transition one solution is to carefully select sections of the Earth centered and moon centered curves and then morph from the Earth centered curve section to the moon centered curve section while the animation was playing. This technique was used here as well. || ",
            "hits": 196
        },
        {
            "id": 3605,
            "url": "https://svs.gsfc.nasa.gov/3605/",
            "result_type": "Visualization",
            "release_date": "2009-07-06T00:00:00-04:00",
            "title": "Magnetospheric Multiscale Mission (MMS) Dayside Orbit Animation for the Preliminary Design Review (PDR)",
            "description": "This visualization uses simulated ephemerides to show the proposed orbits of the Magnetospheric Multiscale Mission (MMS) during the \"dayside magnetosheath/magnetopause\" orbit phase. The movie initially shows the general orientation of the orbit with respect to the Earth, Moon, and Sun. It then zooms in to \"ride\" along with the spacecraft. We then zoom in even closer to show that there are actually four spacecraft flying in a tetrahedral formation. Finally, we see how the 4 spacecraft skim the magnetosheath such that, occasionally, some of the spacecraft are inside (e.g., MMS #1) and some are outside (e.g., MMS #2, #3, and #4) of the magnetosheath boundary.This visualization was created in support of the MMS Preliminary Design Review (PDR) which was held May 4 - 7, 2009. || ",
            "hits": 33
        },
        {
            "id": 3606,
            "url": "https://svs.gsfc.nasa.gov/3606/",
            "result_type": "Visualization",
            "release_date": "2009-07-06T00:00:00-04:00",
            "title": "Magnetospheric Multiscale Mission (MMS) Nightside Orbit Animation for the Preliminary Design Review (PDR)",
            "description": "This visualization uses simulated ephemerides to show the proposed orbits of the Magnetospheric Multiscale Mission (MMS) during the \"nightside\" orbit phase. The movie initially shows the general orientation of the orbit with respect to the Earth, Moon, and Sun. It then moves in towards the Earth revealing Earth's magnetic field. The camera then moves down towards the dark side of the Earth showing how MMS will fly through the tail of the magnetosphereThis visualization was created in support of the MMS Preliminary Design Review (PDR) which was held May 4th through May 7th of 2009. || ",
            "hits": 28
        },
        {
            "id": 3612,
            "url": "https://svs.gsfc.nasa.gov/3612/",
            "result_type": "Visualization",
            "release_date": "2009-05-08T00:00:00-04:00",
            "title": "Lunar Reconnaissance Orbiter (LRO) Orbit Insertion",
            "description": "This visualization shows an example of how the orbit insertion for the Lunar Reconnaissance Orbiter (LRO) might look. LRO launches from Cape Canaveral, then flies around the Earth and on to the moon. Time speeds up during the journey to the moon, then slows again as LRO approaches the moon. LRO begins orbiting the moon and, through a series of several \"burns\", moves in closer to its desired orbit. LRO's initial orbit plane around the moon is parallel to the direction of the moon's travel.This visualization was created before launch using simulated ephemeris data. The ephemeris data driving this visualization was based on a simulated nighttime launch on 11/24/2008; but, the actual launch may happen during the daytime.A stereoscopic version of this visualization can be found HERE.  For more information on the coodinate systems in the animation see HERE. || ",
            "hits": 267
        }
    ]
}