{ "id": 40151, "url": "https://svs.gsfc.nasa.gov/gallery/heliophysics-fleet-past-present-future/", "page_type": "Gallery", "title": "Heliophysics Fleet - Past - Present - Future", "description": "Orbits and trajectories of many missions observing the Sun and the near-Earth environment.", "release_date": "2013-09-25T00:00:00-04:00", "update_date": "2023-09-06T00:00:00-04:00", "main_image": { "id": 474266, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003900/a003966/FutureHelioMissions.slate_HEEmove.HD1080i.1600_web.png", "filename": "FutureHelioMissions.slate_HEEmove.HD1080i.1600_web.png", "media_type": "Image", "alt_text": "This movie illustrates the planned trajectories for Solar Orbiter and Parker Solar Probe.", "width": 180, "height": 320, "pixels": 57600 }, "media_groups": [ { "id": 370749, "url": "https://svs.gsfc.nasa.gov/gallery/heliophysics-fleet-past-present-future/#media_group_370749", "widget": "Basic text (large)", "title": "Overview", "caption": "", "description": "Orbits and trajectories of many missions observing the Sun and the near-Earth environment.", "items": [], "extra_data": {} }, { "id": 370751, "url": "https://svs.gsfc.nasa.gov/gallery/heliophysics-fleet-past-present-future/#media_group_370751", "widget": "Tile gallery", "title": "Present", "caption": "", "description": "", "items": [ { "id": 406283, "type": "details_page", "extra_data": null, "instance": { "id": 4898, "url": "https://svs.gsfc.nasa.gov/4898/", "page_type": "Visualization", "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 || ", "release_date": "2022-11-23T00:00:00-05:00", "update_date": "2025-02-02T00:15:53.838252-05:00", "main_image": { "id": 368244, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004898/Sentinels2022.Earth2Voyager.GSE.AU.clockSlate_EarthTarget.HD1080.00280_print.jpg", "filename": "Sentinels2022.Earth2Voyager.GSE.AU.clockSlate_EarthTarget.HD1080.00280_print.jpg", "media_type": "Image", "alt_text": "This visualization presents orbits of the current heliophysics satellites covering the space near Earth, through the solar system, and concluding with a view of the Voyagers, just outside the heliopause.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406284, "type": "details_page", "extra_data": null, "instance": { "id": 4887, "url": "https://svs.gsfc.nasa.gov/4887/", "page_type": "Visualization", "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 || ", "release_date": "2021-03-01T10:00:00-05:00", "update_date": "2021-09-13T13:00:07-04:00", "main_image": { "id": 386740, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004887/Sentinels2020.noaa.InnerSolarSystem.GSE.AU.clockSlate_EarthTarget.HD1080i.00200_print.jpg", "filename": "Sentinels2020.noaa.InnerSolarSystem.GSE.AU.clockSlate_EarthTarget.HD1080i.00200_print.jpg", "media_type": "Image", "alt_text": "This visualization presents orbits of the current heliophysics satellites covering the space near Earth, out to the Sun-Earth Lagrange point, L1, and finally a view of the current missions operating in the inner solar system.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406285, "type": "details_page", "extra_data": null, "instance": { "id": 4822, "url": "https://svs.gsfc.nasa.gov/4822/", "page_type": "Visualization", "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 || ", "release_date": "2020-09-15T10:00:00-04:00", "update_date": "2022-11-03T09:58:31-04:00", "main_image": { "id": 382681, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004822/Sentinels2020.InnerSolarSystem.GSE.AU.clockSlate_EarthTarget.HD1080i.01500_print.jpg", "filename": "Sentinels2020.InnerSolarSystem.GSE.AU.clockSlate_EarthTarget.HD1080i.01500_print.jpg", "media_type": "Image", "alt_text": "This visualization presents orbits of the current heliophysics satellites covering the space near Earth, out to the Sun-Earth Lagrange point, L1, and finally a view of the current missions operating in the inner solar system.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406286, "type": "details_page", "extra_data": null, "instance": { "id": 4360, "url": "https://svs.gsfc.nasa.gov/4360/", "page_type": "Visualization", "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 || ", "release_date": "2018-12-10T11:00:00-05:00", "update_date": "2019-04-17T16:22:25-04:00", "main_image": { "id": 398777, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004360/Sentinels2018.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_print.jpg", "filename": "Sentinels2018.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_print.jpg", "media_type": "Image", "alt_text": "This movie presents the trajectories of the heliophysics fleet from close to Earth to out beyond the heliopause.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406287, "type": "details_page", "extra_data": null, "instance": { "id": 4589, "url": "https://svs.gsfc.nasa.gov/4589/", "page_type": "Visualization", "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] || ", "release_date": "2017-10-25T10:00:00-04:00", "update_date": "2025-01-06T00:12:12.581597-05:00", "main_image": { "id": 410404, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004589/Sentinels2017.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_print.jpg", "filename": "Sentinels2017.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_print.jpg", "media_type": "Image", "alt_text": "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.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406288, "type": "details_page", "extra_data": null, "instance": { "id": 4288, "url": "https://svs.gsfc.nasa.gov/4288/", "page_type": "Visualization", "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] || ", "release_date": "2015-06-10T00:00:00-04:00", "update_date": "2024-12-15T22:20:35.001660-05:00", "main_image": { "id": 443168, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004200/a004288/Helio2015A.MMStour.slateHR_RigRHS.HD1080i.0364_print.jpg", "filename": "Helio2015A.MMStour.slateHR_RigRHS.HD1080i.0364_print.jpg", "media_type": "Image", "alt_text": "Moving out further, we see SDO as we pass geosynchronous orbit.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406289, "type": "details_page", "extra_data": null, "instance": { "id": 4127, "url": "https://svs.gsfc.nasa.gov/4127/", "page_type": "Visualization", "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. || ", "release_date": "2013-12-16T12:00:00-05:00", "update_date": "2025-01-19T22:11:46.015670-05:00", "main_image": { "id": 460015, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004127/Helio2013.slate_GSEmove.HD1080i.0500.jpg", "filename": "Helio2013.slate_GSEmove.HD1080i.0500.jpg", "media_type": "Image", "alt_text": "Movie showing the heliosphysics missions from near Earth orbit out to the orbit of the Moon. ", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406290, "type": "details_page", "extra_data": null, "instance": { "id": 3969, "url": "https://svs.gsfc.nasa.gov/3969/", "page_type": "Visualization", "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. || ", "release_date": "2012-09-20T00:00:00-04:00", "update_date": "2025-02-02T22:07:38.068996-05:00", "main_image": { "id": 473624, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003900/a003969/Helio2012.slate_GSEmove.HD1080i.0900.jpg", "filename": "Helio2012.slate_GSEmove.HD1080i.0900.jpg", "media_type": "Image", "alt_text": "Movie showing the heliosphysics missions from near Earth orbit out to the orbit of the Moon.", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406291, "type": "details_page", "extra_data": null, "instance": { "id": 3994, "url": "https://svs.gsfc.nasa.gov/3994/", "page_type": "Visualization", "title": "RBSP & SDO: Newest Heliophysics Missions", "description": "The newest members of NASA's Heliophysics fleet are the Solar Dynamics Observatory (SDO), launched February 11, 2010, and the Radiation Belt Storm Probes (RBSP), launched August 23, 2012.Revision (November 9, 2012): The RBSP mission has been renamed the Van Allen Probes. NASA Press Release. || ", "release_date": "2012-09-20T00:00:00-04:00", "update_date": "2023-05-03T13:52:46.824383-04:00", "main_image": { "id": 472282, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003900/a003994/Helio2012SDORBSP.noslate_GSEmove.HD1080i.1000.jpg", "filename": "Helio2012SDORBSP.noslate_GSEmove.HD1080i.1000.jpg", "media_type": "Image", "alt_text": "Orbits of SDO and RBSP", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406292, "type": "details_page", "extra_data": null, "instance": { "id": 3993, "url": "https://svs.gsfc.nasa.gov/3993/", "page_type": "Visualization", "title": "STEREO's Ongoing Mission to See the Sun from All Sides", "description": "In 2012, the two STEREO spacecraft, Ahead (STEREO-A) and Behind (STEREO-B) continue on their orbits around the Sun. For the next several years, the spacecraft will be positioned to observe the side of the Sun not visible from the Earth. || ", "release_date": "2012-09-20T00:00:00-04:00", "update_date": "2023-05-03T13:52:46.705612-04:00", "main_image": { "id": 472249, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003900/a003993/stereoAB.slate_HEEmove.HD1080i.1500.jpg", "filename": "stereoAB.slate_HEEmove.HD1080i.1500.jpg", "media_type": "Image", "alt_text": "A movie of showing the orbits of the STEREO A & B spacecraft in relation to the planets of the inner solar system in 2012.", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406293, "type": "details_page", "extra_data": null, "instance": { "id": 3995, "url": "https://svs.gsfc.nasa.gov/3995/", "page_type": "Visualization", "title": "The Heliophysics Fleet at Lagrange Point 1", "description": "NASA and ESA operate a fleet of heliophysics satellites at the 'balance point' between the Earth and the Sun, known as Lagrange Point 1, or L1. SOHO, ACE, and Wind have been operating at this point for over 15 years (see SOHO @ 15, ACE @ 15). || ", "release_date": "2012-09-20T00:00:00-04:00", "update_date": "2024-06-23T22:10:54.847641-04:00", "main_image": { "id": 472301, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003900/a003995/L1tour.noslate_rotate.HD1080i.0500.jpg", "filename": "L1tour.noslate_rotate.HD1080i.0500.jpg", "media_type": "Image", "alt_text": "SOHO, ACE, and Wind execute 'halo orbits' around L1, between the Sun and the Earth.", "width": 1920, "height": 1080, "pixels": 2073600 } } } ], "extra_data": {} }, { "id": 370752, "url": "https://svs.gsfc.nasa.gov/gallery/heliophysics-fleet-past-present-future/#media_group_370752", "widget": "Card gallery", "title": "Narrated Videos", "caption": "", "description": "", "items": [ { "id": 406294, "type": "details_page", "extra_data": null, "instance": { "id": 3595, "url": "https://svs.gsfc.nasa.gov/3595/", "page_type": "Visualization", "title": "Sentinels of the Heliosphere", "description": "Heliophysics is a term to describe the study of the Sun, its atmosphere or the heliosphere, and the planets within it as a system. As a result, it encompasses the study of planetary atmospheres and their magnetic environment, or magnetospheres. These environments are important in the study of space weather.As a society dependent on technology, both in everyday life, and as part of our economic growth, space weather becomes increasingly important. Changes in space weather, either by solar events or geomagnetic events, can disrupt and even damage power grids and satellite communications. Space weather events can also generate x-rays and gamma-rays, as well as particle radiations, that can jeopardize the lives of astronauts living and working in space.This visualization tours the regions of near-Earth orbit; the Earth's magnetosphere, sometimes called geospace; the region between the Earth and the Sun; and finally out beyond Pluto, where Voyager 1 and 2 are exploring the boundary between the Sun and the rest of our Milky Way galaxy. Along the way, we see these regions patrolled by a fleet of satellites that make up NASA's Heliophysics Observatory Telescopes. Many of these spacecraft do not take images in the conventional sense but record fields, particle energies and fluxes in situ. Many of these missions are operated in conjunction with international partners, such as the European Space Agency (ESA) and the Japanese Space Agency (JAXA).The Earth and distances are to scale. Larger objects are used to represent the satellites and other planets for clarity.Here are the spacecraft featured in this movie:Near-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 pageTRACE: Observes the Sun in visible and ultraviolet wavelengths. 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. AIM: Images and measures noctilucent clouds. SVS pageGeospace 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 five satellites to study how magnetospheric instabilities produce substorms. SVS pageL1 Fleet: The L1 point is a Lagrange Point, a point between the Earth and the Sun where the gravitational pull is approximately equal. Spacecraft can orbit this location for continuous coverage of the Sun.SOHO: Studies the Sun with cameras and a multitude of other instruments. SVS pageACE: Measures the composition and characteristics of the solar wind. Wind: Measures particle flows and fields in the solar wind. Heliospheric FleetSTEREO-A and B: These two satellites observe the Sun, with imagers and particle detectors, off the Earth-Sun line, providing a 3-D view of solar activity. SVS pageHeliopause FleetVoyager 1 and 2: These spacecraft conducted the original 'Planetary Grand Tour' of the solar system in the 1970s and 1980s. They have now travelled further than any human-built spacecraft and are still returning measurements of the interplanetary medium. SVS pageThis enhanced, narrated visualization was shown at the SIGGRAPH 2009 Computer Animation Festival in New Orleans, LA in August 2009; an eariler version created for AGU was called NASA's Heliophysics Observatories Study the Sun and Geospace. || ", "release_date": "2009-07-27T00:00:00-04:00", "update_date": "2025-01-05T22:01:59.957021-05:00", "main_image": { "id": 496868, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003500/a003595/Sentinels01500.jpg", "filename": "Sentinels01500.jpg", "media_type": "Image", "alt_text": "This movie shows the orbits of the fleet of NASA spacecraft exploring the heliosphere.For complete transcript, click here.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } } } ], "extra_data": {} }, { "id": 370753, "url": "https://svs.gsfc.nasa.gov/gallery/heliophysics-fleet-past-present-future/#media_group_370753", "widget": "Card gallery", "title": "Orbital Gymnastics", "caption": "", "description": "Cool ways to move spacecraft around using gravity and a little bit of fuel...", "items": [ { "id": 406295, "type": "details_page", "extra_data": null, "instance": { "id": 3787, "url": "https://svs.gsfc.nasa.gov/3787/", "page_type": "Visualization", "title": "ARTEMIS at Lagrange", "description": "This visualization is built from the components of ARTEMIS Mission with emphasis on the maneuvers of the two ARTEMIS spacecraft (red=ARTEMIS-1, green=ARTEMIS-2) around the lunar Lagrange Points L1 and L2.As with the ARTEMIS Mission visual, we show the Earth, the Earth's magnetosphere, the Moon and Sun, with the direction of the Sun from the Earth indicated by the yellow arrow.In this version, the satellite trails are are constructed in a lunar-centric inertial coordinate system so the trails reveal the motion of the satellites relative to the Lagrange points in INERTIAL space (fixed with the distant stars). To see another example of how coordinate systems dramatically affect the construction of trails, see LRO in Earth Centered and Moon Centered Coordinates.In this movie, the camera starts above the Moon's orbital plane and then slowly moves towards the Moon's orbital plane to get a better sense of the motion in 3-D space. For a different perspective, see ARTEMIS at Lagrange: The View from Above. || ", "release_date": "2010-10-27T12:00:00-04:00", "update_date": "2023-05-03T13:53:59.690762-04:00", "main_image": { "id": 494051, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003700/a003787/ARTEMISlagrange.HR_Full.HD720p.04259.jpg", "filename": "ARTEMISlagrange.HR_Full.HD720p.04259.jpg", "media_type": "Image", "alt_text": "As the camera moves close to the Moon's orbital plane, we see that the two spacecraft are executing their motions in all three spatial dimensions, This is because the coordinate system of the trails has a fixed orientation with the distant stars (inertial space).", "width": 2560, "height": 1440, "pixels": 3686400 } } }, { "id": 406296, "type": "details_page", "extra_data": null, "instance": { "id": 3786, "url": "https://svs.gsfc.nasa.gov/3786/", "page_type": "Visualization", "title": "ARTEMIS at Lagrange: The View from Above", "description": "This visualization is built from the components of ARTEMIS Mission with emphasis on the maneuvers of the two ARTEMIS spacecraft (red=ARTEMIS-1, green=ARTEMIS-2) around the lunar Lagrange Points L1 and L2.As with the ARTEMIS Mission visual, we show the Earth, the Earth's magnetosphere, the Moon and Sun, with the direction of the Sun from the Earth indicated by the yellow arrow.In this version, the satellite trails are are constructed in a lunar-centric inertial coordinate system so the trails reveal the motion of the satellites relative to the Lagrange points in INERTIAL space (fixed with the distant stars). To see another example of how coordinate systems dramatically affect the construction of trails, see LRO in Earth Centered and Moon Centered Coordinates.In this movie, the camera stays above the Moon's orbital plane for a better view of the motion in the orbital plane. For a change in perspective, see ARTEMIS at Lagrange. || ", "release_date": "2010-10-27T12:00:00-04:00", "update_date": "2023-05-03T13:53:59.565385-04:00", "main_image": { "id": 494022, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003700/a003786/ARTEMISlagrangeAbove.HR_Full.HD720p.02930.jpg", "filename": "ARTEMISlagrangeAbove.HR_Full.HD720p.02930.jpg", "media_type": "Image", "alt_text": "Opening view as ARTEMIS-1 is captured in the region around L2.", "width": 2560, "height": 1440, "pixels": 3686400 } } }, { "id": 406297, "type": "details_page", "extra_data": null, "instance": { "id": 3682, "url": "https://svs.gsfc.nasa.gov/3682/", "page_type": "Visualization", "title": "ARTEMIS Mission", "description": "An extension to the THEMIS mission is to send two of the THEMIS satellites into lunar orbit to study the magnetospheric environment near the Moon. The new mission is named ARTEMIS (Acceleration, Reconnection Turbulence, and Electrodynamics of Moon's Interaction with the Sun).The outermost two THEMIS spacecraft (Probes B and C) are on route to the Moon, where they will become the ARTEMIS mission's Probes 1 and 2 (red and green, respectively) , tasked with studying not only the tenuous cavity carved out by the Moon in the supersonic solar wind, but also reconnection, particle energization and turbulence in both the solar wind and the Earth's distant magnetotail at lunar distance. ARTEMIS stands for Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun.Thanks to careful planning, sufficient fuel remained on both spacecraft at the successful completion of their primary mission to raise their apogees to lunar distance, where they could receive the multiple gravitational assists needed to fling the spacecraft first beyond the Moon and then assist them in entering in orbits that parallel that of the Moon at the L1 and L2 Lagrange points. Maneuvers in April 2011 enable the spacecraft to enter into prograde and retrograde lunar orbits (the 'braided' motion).The direction of the Sun is indicated by the yellow arrow. || ", "release_date": "2010-10-27T12:00:00-04:00", "update_date": "2023-05-03T13:53:59.467528-04:00", "main_image": { "id": 493969, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003600/a003682/ARTEMISdeluxeC.HR_Full.HD720p.04480.jpg", "filename": "ARTEMISdeluxeC.HR_Full.HD720p.04480.jpg", "media_type": "Image", "alt_text": "... and out.", "width": 1280, "height": 720, "pixels": 921600 } } } ], "extra_data": {} } ] }