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RHESSI, TWINS, and STEREO-B have been decommissioned, while GOLD and Parker Solar Probe have been added. As of fall 2018, here's a tour of the NASA Heliophysics fleet from the near-Earth satellites out to the Voyagers beyond the heliopause.

The satellite orbits are color coded for their observing program:

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Near-Earth Fleet:

Geosynchronous Fleet:

Geospace Fleet:

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Lunar Orbiting Fleet:

Sun-Earth Lagrange Point One Fleet:

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Solar Orbiting Fleet:

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Interstellar Fleet:

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Almost 50 years since those 1972 storms, the data, technology and resources available to NASA have improved, enabling advancements towards space weather forecasts and astronaut protection — key to NASA’s Artemis program to return astronauts to the Moon.", "release_date": "2019-08-07T11:30:00-04:00", "update_date": "2026-02-20T16:18:25.752581-05:00", "main_image": { "id": 393941, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013200/a013275/13275_AstronautRadiation_Twitter.01205_print.jpg", "filename": "13275_AstronautRadiation_Twitter.01205_print.jpg", "media_type": "Image", "alt_text": "Watch this video on the NASA Goddard YouTube channel.Complete transcript available.Music credits: “Boreal Moment” by Benoit Scarwell [SACEM]; “Sensory Questioning”, “Natural Time Cycles”, “Emerging Designer”, and “Experimental Design” by Laurent Dury [SACEM]; “Superluminal” by Lee Groves [PRS], Peter George Marett [PRS] from Killer Tracks", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 13143, "url": "https://svs.gsfc.nasa.gov/13143/", "page_type": "Produced Video", "title": "NASA's Mission Through Dangerous Space Is Going Out in Style", "description": "B-roll for Van Allen Probe Live Shot. Answers the following suggested questions: You may think space is empty, but there is a lot there that we can’t see. What are space weather and radiation belts?How do you observe the radiation belts?A new radiation belt was discovered several years ago. Tell us about that discovery.Can you tell us about the final mission that the Van Allen probes are going on?How do radiation belts affect space travel, astronauts and the space station?Where can we learn more? || broll.00001_print.jpg (1024x576) [114.9 KB] || broll.00001_print_print.jpg (1024x576) [66.2 KB] || broll.00001_print_searchweb.png (320x180) [95.8 KB] || broll.00001_print_thm.png (80x40) [7.7 KB] || broll.webm (1280x720) [21.1 MB] || broll.mp4 (1280x720) [212.1 MB] || broll.mov (1280x720) [2.8 GB] || ", "release_date": "2019-02-11T21:00:00-05:00", "update_date": "2023-05-03T13:46:08.137981-04:00", "main_image": { "id": 397551, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013100/a013143/broll.00001_print.jpg", "filename": "broll.00001_print.jpg", "media_type": "Image", "alt_text": "B-roll for Van Allen Probe Live Shot. Answers the following suggested questions: You may think space is empty, but there is a lot there that we can’t see. What are space weather and radiation belts?How do you observe the radiation belts?A new radiation belt was discovered several years ago. Tell us about that discovery.Can you tell us about the final mission that the Van Allen probes are going on?How do radiation belts affect space travel, astronauts and the space station?Where can we learn more?", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_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. 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