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The 2015 Earth-Orbiting Heliophysics Fleet
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.
There've been a few changes since the 2013 Earth-Orbiting Heliophysics Fleet. As of Spring of 2015, 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) observations Yellow: solar observations and imagery Cyan: Geospace and magnetosphere Violet: Heliospheric observations
Near-Earth Fleet:
- Hinode: Observes the Sun in multiple wavelengths up to x-rays. SVS page
- RHESSI : Observes the Sun in x-rays and gamma-rays. SVS page
- TIMED: Studies the upper layers (40-110 miles up) of the Earth's atmosphere.
- 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 page
- Van Allen Probes: Two probes moving along the same orbit designed to study the impact of space weather on Earth's radiation belts. SVS page
- TWINS: 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.
Geospace Fleet:
- Geotail: Conducts measurements of electrons and ions in the Earth's magnetotail.
- 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 ARTEMIS.SVS page
- IBEX: The Interstellar Boundary Explorer measures the flux of neutral atoms from the heliopause.
Lunar Orbiting Fleet:
- ARTEMIS: Two of the THEMIS satellites were moved into lunar orbit to study the interaction of the Earth's magnetosphere with the Moon.
Major changes with earlier versions:
- MMS added
- GOES satellites removed
- Cluster satellites removed
- Camera moves around the night-side of Earth .
Movie showing the heliosphysics missions from near Earth orbit out to the orbit of the Moon. This version shows the time of the orbit positions.

Close-up view of the near-Earth heliophysics satellites.

Pulling out from Earth for a wider view...

Moving out further, we see SDO as we pass geosynchronous orbit.

A view including TWINS, the Van Allen Probes, and SDO.

The early phase of the MMS mission comes into view.

Here we see many of the missions occupy the region inside Earth's magnetosphere.

Passing the orbit of the Moon, we see the ARTEMIS spacecraft in lunar orbit.

All done!

High-resolution 5x3 Hyperwall version
Credits
Please give credit for this item to:
NASA's Scientific Visualization Studio, the NASA/Goddard Satellite Situation Center, and Space Track.
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Animator
- Tom Bridgman (Global Science and Technology, Inc.)
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Producers
- Scott Wiessinger (USRA)
- Genna Duberstein (USRA)
Release date
This page was originally published on Wednesday, June 10, 2015.
This page was last updated on Sunday, December 15, 2024 at 10:20 PM EST.
Missions
This page is related to the following missions:Series
This page can be found in the following series:Datasets used
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SSCweb ephemerides (SSCweb)
ID: 538Satellite ephemerides
This dataset can be found at: http://sscweb.gsfc.nasa.gov
See all pages that use this dataset -
Space-Track TLE (Space-Track Two-Line Elements)
ID: 753Satellite ephemerides
This dataset can be found at: http://Space-Track.org
See all pages that use this dataset
Note: While we identify the data sets used on this page, we do not store any further details, nor the data sets themselves on our site.