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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.

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Excepting the Voyager missions, the satellite orbits are color coded for their observing program:

Near-Earth Fleet:

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Geosynchronous Fleet:

Geospace Fleet:

Lunar Orbiting Fleet:

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Sun-Earth Lagrange Point One (L1) Fleet:

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Solar Orbiting Fleet:

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Interstellar Fleet:

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], "studio": "svs", "funding_sources": [ "NASA Heliophysics" ], "credits": [ { "role": "Visualizer", "people": [ { "name": "Tom Bridgman", "employer": "Global Science and Technology, Inc." } ] }, { "role": "Technical support", "people": [ { "name": "Laurence Schuler", "employer": "ADNET Systems, Inc." }, { "name": "Ian Jones", "employer": "ADNET Systems, Inc." } ] } ], "missions": [ "ACE", "Global-scale Observations of the Limb and Disk (GOLD)", "Hinode (Solar-b)", "IBEX", "IRIS: Interface Region Imaging Spectrograph", "Magnetospheric Multiscale (MMS)", "Parker Solar Probe", "SDO", "SOHO", "Solar Orbiter Collaboration", "STEREO", "THEMIS", "THEMIS and ARTEMIS", "TIMED", "Voyager", "Wind" ], "series": [ "Heliophysics Fleet" ], "tapes": [], "papers": [], "datasets": [ { "name": "SSCweb", "common_name": "SSCweb ephemerides", "platform": null, "sensor": null, "type": "Ephemeris", "organizations": [ "NASA/GSFC Space Physics Data Facility" ], "description": "Satellite ephemerides", "credit": 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Atmosphere", "description": "Two upcoming missions, the Geospace Dynamics Constellation (GDC) and Dynamical Neutral Atmosphere-Ionosphere Coupling (DYNAMIC) will revolutionize our understanding of Earth’s upper atmosphere. This region includes Earth’s ionosphere, thermosphere, and mesosphere, and stretches from roughly 50 to 400 miles above Earth’s surface. Space weather disturbances can impact communications, navigation signals, and satellite orbits, and induce currents can trigger power outages on Earth — making the region a crucial area of study.GDC is a team of satellites that will study Earth’s upper atmosphere and provide the first direct global measurements of our planet’s dynamic and complex interface with the space environment. Working in tandem with the DYNAMIC spacecraft, scientists will be able paint a fuller picture of how energy transforms and travels throughout the upper atmosphere. GDC will fly at an altitude of 350-400 km.DYNAMIC is a pair of satellites that will work in tandem with GDC to study how changes in Earth’s lower atmosphere influence our planet’s upper atmosphere. Between the multiple spacecraft of GDC and DYNAMIC, simultaneous observations from different locations can give scientists a more complete picture of how atmospheric waves propagate up through this unique part of the atmosphere. DYNAMIC will fly at an altitude of 550-800 km. || ", "release_date": "2025-01-03T00:00:00-05:00", "update_date": "2025-01-02T16:44:26.122491-05:00", "main_image": { "id": 1140522, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014700/a014744/GDC_and_DYNAMIC_Thumbnail.jpg", "filename": "GDC_and_DYNAMIC_Thumbnail.jpg", "media_type": "Image", "alt_text": "GDC and DYNAMIC - 4K", "width": 1920, "height": 1080, "pixels": 2073600 } } ], "sources": [], "products": [ { "id": 14741, "url": "https://svs.gsfc.nasa.gov/14741/", "page_type": "Produced Video", "title": "Parker Solar Probe: Humanity’s Closest Encounter with the Sun", "description": "Controllers have confirmed NASA’s mission to “touch” the Sun survived its record-breaking closest approach to the solar surface on Dec. 24, 2024.Breaking its previous record by flying just 3.8 million miles above the surface of the Sun, NASA’s Parker Solar Probe hurtled through the solar atmosphere at a blazing 430,000 miles per hour — faster than any human-made object has ever moved. A beacon tone received in the late evening hours of Dec. 26 confirmed the spacecraft had made it through the encounter safely and is operating normally.This pass, the first of more to come at this distance, allows the spacecraft to conduct unrivaled scientific measurements with the potential to change our understanding of the Sun. || ", "release_date": "2024-12-27T13:00:00-05:00", "update_date": "2024-12-27T13:59:21.228827-05:00", "main_image": { "id": 1140135, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014700/a014741/PSP_AcrossAcutalSun_H264.00001_print.jpg", "filename": "PSP_AcrossAcutalSun_H264.00001_print.jpg", "media_type": "Image", "alt_text": "Conceptual AnimationA conceptual animation of Parker Solar Probe making its closest approach to the Sun.Credit: NASA/Johns Hopkins APL/Steve Gribben", "width": 1024, "height": 288, "pixels": 294912 } } ], "newer_versions": [], "older_versions": [ { "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 } } ], "alternate_versions": [] }