{ "count": 10, "next": null, "previous": null, "results": [ { "id": 4288, "url": "https://svs.gsfc.nasa.gov/4288/", "result_type": "Visualization", "release_date": "2015-06-10T00:00:00-04:00", "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] || ", "hits": 58 }, { "id": 4127, "url": "https://svs.gsfc.nasa.gov/4127/", "result_type": "Visualization", "release_date": "2013-12-16T12:00:00-05:00", "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. || ", "hits": 66 }, { "id": 11212, "url": "https://svs.gsfc.nasa.gov/11212/", "result_type": "Produced Video", "release_date": "2013-02-28T14:00:00-05:00", "title": "Van Allen Probes Find Storage Ring in Earth's Outer Radiation Belt", "description": "Since their discovery over 50 years ago, the Earth's Van Allen radiation belts have been considered to consist of two distinct zones of trapped, highly energetic charged particles. Observations from NASA's Van Allen Probes reveal an isolated third ring in the outer radiation belt. || ", "hits": 734 }, { "id": 11069, "url": "https://svs.gsfc.nasa.gov/11069/", "result_type": "Produced Video", "release_date": "2012-11-09T12:00:00-05:00", "title": "Van Allen Probes Overview", "description": "The Van Allen Probes (formerly the Radiation Belt Storm Probes, RBSP) will explore the Van Allen Radiation Belts in the Earth's magnetosphere. The charged particles in these regions can be hazardous to both spacecraft and astronauts. Project Scientist Dr. David Sibeck explains the how the mission will explore space weather — changes in Earth's space environment caused by the sun — that can disable satellites, create power grid failures and disrupt GPS service. The mission also will allow researchers to understand fundamental radiation and particle acceleration processes throughout the universe.The 2-year mission launched Thursday, Aug. 23 from Cape Canaveral Air Force Station in Florida. The twin probes lifted off on a United Launch Alliance Atlas V rocket. || ", "hits": 134 }, { "id": 3969, "url": "https://svs.gsfc.nasa.gov/3969/", "result_type": "Visualization", "release_date": "2012-09-20T00:00:00-04:00", "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. || ", "hits": 52 }, { "id": 3994, "url": "https://svs.gsfc.nasa.gov/3994/", "result_type": "Visualization", "release_date": "2012-09-20T00:00:00-04:00", "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. || ", "hits": 21 }, { "id": 11027, "url": "https://svs.gsfc.nasa.gov/11027/", "result_type": "Produced Video", "release_date": "2012-08-09T14:00:00-04:00", "title": "RBSP L-14 Press Conference", "description": "The Radiation Belt Storm Probes mission is part of NASA's Living With a Star Geospace program to explore fundamental processes that operate throughout the solar system, in particular those that generate hazardous space weather effects near the Earth and phenomena that could affect solar system exploration.RBSP is designed to help us understand the sun's influence on the Earth and near-Earth space by studying the planet's radiation belts on various scales of space and time.Understanding the radiation belt environment and its variability has extremely important practical applications in the areas of spacecraft operations, spacecraft and spacecraft system design, mission planning, and astronaut safety.RBSP is scheduled to launch no earlier than 4:08 a.m. Thursday, Aug. 23 from Cape Canaveral Air Force Station in Florida. The twin probes will lift off on a United Launch Alliance Atlas V rocket.News conference panelists are:— Madhulika Guhathakurta, Living With a Star program scientist, NASA Headquarters, Washington— Mona Kessel, RBSP program scientist, NASA Headquarters— Barry Mauk, RBSP project scientist, Johns Hopkins University Applied Physics Laboratory (APL), Laurel, Md.— Rick Fitzgerald, RBSP project manager, APL, Laurel, Md. || ", "hits": 67 }, { "id": 3951, "url": "https://svs.gsfc.nasa.gov/3951/", "result_type": "Visualization", "release_date": "2012-05-08T00:00:00-04:00", "title": "The Van Allen Probes (formerly Radiation Belt Storm Probes - RBSP) Explore the Earth's Radiation Belts", "description": "The Radiation Belt Storm Probe (RBSP) is actually two satellites that will travel on a elliptical orbit around the Earth, ranging between 1.5 and 6 Earth radii. This range covers the inner region of the Earth's geomagnetic field. In this region, many of the magnetic field lines intersect the surface of the Earth in the north and south. This means that lower energy ions and electrons, some 'boiled off' the Earth's ionosphere by solar ultraviolet radiation, can be trapped along these field lines. The charged particles spend their time bouncing between the 'mirror points' in the Earth's magnetic field. This trapped population forms the radiation belts around the Earth. The radiation created by this charged particle population can be hazardous to satellites and astronauts so it is important to understand their characteristics. || ", "hits": 199 }, { "id": 3950, "url": "https://svs.gsfc.nasa.gov/3950/", "result_type": "Visualization", "release_date": "2012-05-01T00:00:00-04:00", "title": "Earth's Radiation Belts (cross-section)", "description": "This is a simulation of the Earth's radiation belts. In this version, we've 'sliced' the belts open to provide a better view of their structure in cross-section. The non-cross-section view of the belts is Earth's Radiation Belts (side view)The Earth's magnetosphere is a very large magnetic structure around the Earth, and gets stretched into a large, teardrop-shaped configuration through its interaction with the solar wind. A number of the magnetic field lines, while they may originate on the Earth, do not connect back to the Earth, but connect into the magnetic field carried by the solar wind. However, near the Earth, the dipole component of the field is stronger than the solar wind field, and this allows all the magnetic field lines to connect back to the Earth, forming (approximately) the classic magnetic dipole configuration. In this region, lower energy electrons and ions, many from the Earth's ionosphere, can become trapped by the magnetic field to form the radiation belts.The radiation belt model is constructed from particle flux information from the SAMPEX mission, with the flux mapped to constant L-shells of the Earth's dipole magnetic field. The model is anchored to the Earth's geomagnetic field axis, which is not perfectly aligned with the Earth's rotation axis. This creates a small wobble of the radiation belts with time, which can be seen in this visualization.The data driving the radiation belt structure is time-shifted from the 2003 Halloween solar storms, a series of strong solar eruptions that began in late October 2003 and continued into the first week of November. During this time, the particle content of the belts change rapidly due to the variation in the energetic particle flux from the Sun buffeting the Earth's magnetosphere. || ", "hits": 177 }, { "id": 3942, "url": "https://svs.gsfc.nasa.gov/3942/", "result_type": "Visualization", "release_date": "2012-04-19T00:00:00-04:00", "title": "The Van Allen Probes (formerly RBSP for Radiation Belt Storm Probes) in Earth Orbit", "description": "A basic visualization illustrating the orbit of RBSP around the Earth. This pair of probes will orbit the Earth between about 1.5 and 6 Earth radii to cover the region of the geomagnetically trapped particle radiation. || ", "hits": 57 } ] }