Heliophysics Sentinels 2022
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) observations Yellow: solar observations and imagery Cyan: Geospace and magnetosphere Violet: Heliospheric observations
- Hinode: Observes the Sun in multiple wavelengths up to x-rays. SVS page
- TIMED: Studies the upper layers (40-110 miles up) of Earth's atmosphere. SVS page
- ICON: Works with GOLD on studies of the ionosphere.
- AIM: Images and measures noctilucent clouds. SVS page
- IRIS: Interface Region Imaging Spectrograph is designed to take high-resolution spectra and images of the region between the solar photosphere and solar atmosphere. SVS page
- SDO: Solar Dynamics Observatory keeps the Sun under continuous observation at 16 megapixel resolution. SVS page
- GOLD: Global-scale Observations of the Limb and Disk is a spectroscopic imager for studying the ionosphere.
- Geotail: Conducts measurements of electrons and ions in the Earth's magnetotail. SVS page
- Magnetospheric Multi-scale (MMS): 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 page
- THEMIS: 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 THEMIS-ARTEMIS. SVS page
- IBEX: The Interstellar Boundary Explorer measures the flux of neutral atoms from the heliopause. SVS page
Sun-Earth Lagrange Point One Fleet:
The L1 point is a Lagrange Point between the Sun and the Earth. Spacecraft can orbit this location for continuous coverage of the Sun.
- Voyager 1 & Voyager 2: The two Voyager spaceraft orbit originally performed flybys of the outer planets of the solar system but continued to operate. They are now the most distant monitors of the plasma in the space between the stars. At the time of this visualization, Voyager 2 has just crossed the heliopause.SVS page
Please give credit for this item to:
NASA's Scientific Visualization Studio
- Tom Bridgman (Global Science and Technology, Inc.) [Lead]
MissionsThis visualization is related to the following missions:
- Global-scale Observations of the Limb and Disk (GOLD)
- Hinode (Solar-b)
- Ionospheric Connection Explorer (ICON)
- IRIS: Interface Region Imaging Spectrograph
- Magnetospheric Multiscale (MMS)
- Parker Solar Probe
- Solar Orbiter Collaboration
- THEMIS and ARTEMIS
SeriesThis visualization can be found in the following series:
Datasets used in this visualization
SSCweb ephemerides (SSCweb)ID: 538Ephemeris NASA/GSFC Space Physics Data Facility 2022-04-26T00:00:00 UTC - 2022-10-18T00:00:00 UTC
Space-Track TLE (Space-Track Two-Line Elements)ID: 753Ephemeris NORAD 2022-04-26T00:00:00 UTC - 2022-10-18T00:00:00 UTC
DE 431ID: 985Ephemeris JPL 2022-04-26T00:00:00 UTC - 2022-10-18T00:00:00 UTC
Planetary ephemerides SPICE kernelSee all pages that use this dataset
Note: While we identify the data sets used in these visualizations, we do not store any further details, nor the data sets themselves on our site.