Showing posts with label SDO. Show all posts
Showing posts with label SDO. Show all posts

Wednesday, December 18, 2013

Wavelength Views of the Sun

This movie, created by NASA's Scientific Visualization Studio at NASA's Goddard Space Flight Center in Greenbelt, Md., shows how features of the sun can appear dramatically different when viewed in different wavelengths. Image Credit: NASA's Goddard Space Flight Center

Telescopes help distant objects appear bigger, but this is only one of their advantages. Telescopes can also collect light in ranges that our eyes alone cannot see, providing scientists ways of observing a whole host of material and processes that would otherwise be inaccessible. A new NASA movie of the sun based on data from NASA's Solar Dynamics Observatory, or SDO, shows the wide range of wavelengths – invisible to the naked eye – that the telescope can view. SDO converts the wavelengths into an image humans can see, and the light is colorized into a rainbow of colors.NASA's SDO Shows the Sun's Rainbow of Wavelengths

Friday, July 13, 2012

EO: Earth Observatory

Twelve years after the Earth was buffeted by one of the more potent Sun storms in modern history, our nearest star crackled with activity again. A solar flare erupted on July 12, 2012, followed closely by a companion coronal mass ejection (CME)—a cloud of magnetically charged particles and energy that can disturb Earth’s magnetic field, disrupt satellites and ground-based electronics, and provoke auroras.

The Atmospheric Imaging Assembly on NASA's Solar Dynamics Observatory (SDO) captured these views of the flare in the Sun’s southern hemisphere on July 12, 2012. The top, global image shows the Sun as viewed at 131 Angstroms; the lower, close-up view is 171 Angstroms. Both ultraviolet wavelengths help solar physicists study the fine magnetic structures in the Sun’s super-heated atmosphere, or corona. The yellow and teal are false colors chosen by the science team to distinguish between the spectral bands. Download the movies linked beneath each image to see the active region develop and erupt. See:The Sun Erupts

 An X1.4 class flare erupted from the center of the sun, peaking on July 12, 2012 at 12:52 PM EDT. It erupted from Active Region 1520 which rotated into view on July 6.

This video uses SDO AIA footage in 131(teal), 171(gold) and 335 (blue) angstrom wavelengths. Each wavelength shows different temperature plasma in the sun's atmosphere. 171 shows 600,000 Kelvin plasma, 335 shows 2.5 million Kelvin plasma, and 131 shows 10 million Kelvin plasma.
 This video is public domain and can be downloaded at:

See Also:

Monday, July 09, 2012

Latest SDO IMage

This image taken by SDO's AIA instrument at 171 Angstrom shows the current conditions of the quiet corona and upper transition region of the Sun.

Active Region 1515 released an M6.9 class flare beginning at 12:23 PM EDT and peaking at 12:32 on July 7, 2012. This region has been the source of much solar activity since July 2.

See: Today's Space Weather

This plot shows 3-days of 5-minute solar x-ray flux values measured on the SWPC primary GOES satellite. One low value may appear prior to eclipse periods. Click on the plot to open an updating secondary window. 6-hour 1-min Solar X-ray Flux plot.

Wednesday, September 14, 2011

Solar Weather


The Sun as viewed by the Solar Dynamics Observatory (SDO) in 193 angstrom. The verticle black area near the center is the coronal hole. Credit: NASA/SDO

› View larger UPDATE: 09.09.11 - A strong geomagnetic storm is in progress following the impact of a CME around 7:30 EDT on Sept. 9th. This could be the first of several hits from a series of CMEs expected to reach Earth during the weekend, related to the sunspot 1283 flares during the week. High-latitude sky watchers should be alert for auroras after nightfall.

A high-speed solar wind stream flowing from a large coronal hole should reach Earth on Sept. 11-12 sparking even more aurora.

Tuesday, March 29, 2011

Living With A Star

The Living With a Star (LWS) program emphasizes the science necessary to understand those aspects of the Sun and the Earth's space environment that affect life and society. The ultimate goal is to provide a predictive understanding of the system, and specifically of the space weather conditions at Earth and in the interplanetary medium.

LWS missions have been formulated to answer specific science questions needed to understand the linkages among the interconnected systems that impact us. LWS products impact technology associated with space systems, communications and navigation, and ground systems such as power grids.The coordinated LWS program includes strategic missions, targeted research and technology development, a space environment test bed flight opportunity, and partnerships with other agencies and nations.
Living With A Star

Who would have ever thought to consider our own Sun as a member of the Cosmos,  as a Star?

Solar Probe Fact Sheet(click on Image)

Solar Probe+ will be an extraordinary and historic mission, exploring what is arguably the last region of the solar system to be visited by a spacecraft, the Sun’s outer atmosphere or corona as it extends out into space. Approaching as close as 9.5 solar radii* (8.5 solar radii above the Sun’s surface), Solar Probe+ will repeatedly sample the near-Sun environment, revolutionizing our knowledge and understanding of coronal heating and of the origin and evolution of the solar wind and answering critical questions in heliophysics that have been ranked as top priorities for decades. Moreover, by making direct, in-situ measurements of the region where some of the most hazardous solar energetic particles are energized, Solar Probe+ will make a fundamental contribution to our ability to characterize and forecast the radiation environment in which future space explorers will work and live. See:Solar Probe Plus

As with anything if we want peer deeper in the construction of the world around us it is necessary sometimes to put on different glasses for different perspectives. So it is about how we can look at the universe around us.

HelioPhysics Research

Advanced Composition Explorer (ACE) observes particles of solar, interplanetary, interstellar, and galactic origins, spanning the energy range from solar wind ions to galactic cosmic ray nuclei. This mission is part of SMD's Explorers Program. This mission is part of SMD's ...
19970827 08-27-1997Operating

Aeronomy of Ice in the Mesosphere (AIM) is a mission to determine the causes of the highest altitude clouds in the Earth's atmosphere. The number of clouds in the middle atmosphere (mesosphere) over the Earth's poles has been increasing over ...
20070425 04-25-2007Operating

The Balloon Array for Radiation-belt Relativistic Electron Losses mission is a balloon-based Mission of Opportunity to augment the measurements of NASA's RBSP spacecraft. This mission is part of SMD's LWS program.

The Coupled Ion-Neutral Dynamics Investigations (CINDI) is a mission to understand the dynamics of the Earth's ionosphere. CINDI will provide two instruments for the Communication/Navigation Outage Forecast System (C/NOFS) satellite, a project of the United States Air Force. This mission ...
20080416 04-16-2008Operating

Cluster is a European Space Agency program with major NASA involvement. The 4 Cluster spacecraft are providing a detailed three-dimensional map of the magnetosphere, with surprising results. This mission is part of SMD's Heliophysics Research program.
20000716 07-16-2000Operating

Equator-S was a German Space Agency project, with contributions from ESA and NASA, related to the International Solar-Terrestrial Physics program. The mission provided high-resolution plasma, magnetic, and electric field measurements in several regions not adequately covered by any of the ...
19971202 12-02-1997Past

Fast Auroral Snapshot Explorer (FAST) studies the detailed plasma physics of the Earth's auroral regions. Ground support campaigns coordinate satellite measurements with ground observations of the Aurora Borealis, commonly referred to as the Northern Lights. The science instruments on board ...
19960821 08-21-1996Past

The GEOTAIL mission is a collaborative project undertaken by the Japanese Institute of Space and Astronautical Science (ISAS) and NASA. Its primary objective is to study the tail of the Earth's magnetosphere. The information gathered is allowing scientists to model ...
19920724 07-24-1992Operating

Hinode (Solar-B)
Hinode (formerly known as Solar-B) is a Japanese ISAS mission proposed as a follow-on to the highly successful Japan/US/UK Yohkoh (Solar-A) collaboration. The mission consists of a coordinated set of optical, EUV and X-ray instruments that are studying the interaction ...
20060923 09-23-2006Operating

IBEX will be the first mission designed to detect the edge of the Solar System. As the solar wind from the sun flows out beyond Pluto, it collides with the material between the stars, forming a shock front. This mission ...
20081019 10-19-2008Operating

IMAGE studied the global response of the magnetosphere to changes in the solar wind. Major changes occur to the configuration of the magnetosphere as a result of changes in and on the Sun, which in turn change the solar wind.
20000325 03-25-2000Past

IMP 8 has deepened understanding of the space environment near Earth in many ways. Observations from IMP 8 provided insight into plasma physics, the Earth's magnetic field, the structure of the solar wind and the nature of cosmic rays.
19731026 10-26-1973Past

The primary goal of the Interface Region Imaging Spectrograph (IRIS) explorer is to understand how the solar atmosphere is energized. The IRIS investigation combines advanced numerical modeling with a high resolution UV imaging spectrograph.
20121201 12-01-2012Development

The ISEE (International Sun-Earth Explorer) program was an international cooperative program between NASA and ESA to study the interaction of the solar wind with the Earth's magnetosphere.
19971022 10-22-1997Past

The Magnetospheric Multiscale mission will determine the small-scale basic plasma processes which transport, accelerate and energize plasmas in thin boundary and current layers – and which control the structure and dynamics of the Earth's magnetosphere. MMS will for the first ...
20140814 08-14-2014Development

Polar is the second of two NASA spacecraft in the Global Geospace Science (GGS) initiative and part of the ISTP Project. GGS is designed to improve greatly the understanding of the flow of energy, mass and momentum in the solar-terrestrial ...
19960224 02-24-1996Past

The RBSP mission will provide scientific understanding, ideally to the point of predictability, of how populations of relativistic electrons and ions in space form and change in response to variable inputs of energy from the Sun.
20120518 05-18-2012Development

Reuven Ramaty High Energy Solar Spectroscope Imager (RHESSI) studies solar flares in X-rays and gamma-rays. It explores the basic physics of particle acceleration and explosive energy release in these energetic events in the Sun's atmosphere. This is accomplished by imaging ...
20020205 02-05-2002Operating

The Solar Anomalous and Magnetospheric Particle Explorer is investigating the composition of local interstellar matter and solar material and the transport of magnetospheric charged particles into the Earth's atmosphere.
19920703 07-03-1992Past

SNOE ("snowy") was a small satellite investigating the effects of energy from the Sun and from the magnetosphere on the density of nitric oxide in the Earth's upper atmosphere.
19980226 02-26-1998Past

Solar and Heliospheric Observatory (SOHO) is a solar observatory studying the structure, chemical composition, and dynamics of the solar interior. SOHO a joint venture of the European Space Agency and NASA. This mission is part of SMD's Heliophysics Research program.
19951202 12-02-1995Operating

Solar Dynamics Observatory (SDO)
The Solar Dynamics Observatory (SDO) is the first mission and crown jewel in a fleet of NASA missions to study our sun. The mission is the cornerstone of a NASA science program called Living With a Star (LWS). The goal ...
20100211 02-11-2010Operating

Solar Orbiter
Solar Orbiter is a European Space Agency (ESA) mission to study the Sun from a distance closer than any spacecraft previously has, and will provide images and measurements in unprecedented resolution and detail. This mission is part of SMD's LWS ...
Under Study

Solar Probe Plus
Solar Probe Plus will be a historic mission, flying into one of the last unexplored regions of the solar system, the Sun’s atmosphere or corona, for the first time. This mission is part of SMD's LWS Program.
Under Study

Space Environment Testbeds
The Space Environment Testbeds (SET) Project performs flight and ground investigations to understand how the Sun/Earth interactions affect humanity.
20121001 10-01-2012Development

Spartan 201
Spartan is a small, Shuttle-launched and retrieved satellite. Spartan 201, whose mission is to study the Sun, has a science payload consisting of two telescopes: the Ultraviolet Coronal Spectrometer (UVCS) and the White Light Coronagraph (WLC). Spartan 201 was launched ...
19940913 09-13-1994Past

Space Technology 5 (ST5) flight tested its miniaturized satellites and innovative technologies in the harsh environment of Earth's magnetosphere.
20060322 03-22-2006Past

The goal of STEREO is to understand the origin the Sun's coronal mass ejections (CMEs) and their consequences for Earth. The mission consists of two spacecraft, one leading and the other lagging Earth in its orbit. The spacecraft carries instrumentation ...
20061025 10-25-2006Operating

Time History of Events and Macroscale Interactions during Substorms (THEMIS) is a study of the onset of magnetic storms within the tail of the Earth's magnetosphere. THEMIS will fly five microsatellite probes through different regions of the magnetosphere and observe ...
20070217 02-17-2007Operating

Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics (TIMED) explores the energy transfer into and out of the Mesosphere and Lower Thermosphere/Ionosphere (MLTI) region of the Earth's atmosphere. This mission is part of SMD's Solar Terrestrial Probes Program.
20011207 12-07-2001Operating

Transition Region and Coronal Explorer (TRACE) observes the effects of the emergence of magnetic flux from deep inside the Sun to the outer corona with high spatial and temporal resolution. This mission is part of SMD's Heliophysics Explorers program. This ...
19980401 04-01-1998Past

TWINS will provide stereo imaging of the Earth's magnetosphere, the region surrounding the planet controlled by its magnetic field and containing the Van Allen radiation belts and other energetic charged particles. This mission is part of SMD's Explorers Program. This ...
20080313 03-13-2008Operating

The Ulysses Mission is the first spacecraft to explore interplanetary space at high solar latitudes, orbiting the Sun nearly perpendicular to the plane in which the planets orbit. This mission is part of SMD's Heliophysics Research program.
19901006 10-06-1990Past

The twin Voyager 1 and 2 spacecraft continue exploring where nothing from Earth has flown before. In the 25th year after their 1977 launches, they each are much farther away from Earth and the Sun than Pluto is and approaching ...
19770905 09-05-1977Operating

Wind studies the solar wind and its impact on the near-Earth environment. This mission is part of SMD's Heliophysics Research program.
19941101 11-01-1994Operating

Yohkoh, an observatory for studying X-rays and gamma-rays from the Sun, is a project of the Institute for Space and Astronautical Sciences, Japan.
19910830 08-30-1991Past

Friday, April 23, 2010

Solar Dynamics Observatory

  • The total mass of SDO at launch was 3000 kg (6620 lb); instruments 300 kg (660 lb), spacecraft 1300 kg (2870 lb), and fuel 1400 kg (3090 lb).
  • Its overall length along the sun-pointing axis is 4.5 m, and each side is 2.22 m.
  • The span of the extended solar panels is 6.25 m.
  • Total available power is 1500 W from 6.6 m2 of solar arrays operating at an efficiency of 16%
  • The high-gain antennas rotate once each orbit to follow the Earth.

April 21, 2010: Warning, the images you are about to see could take your breath away.
At a press conference today in Washington DC, researchers unveiled "First Light" images from NASA's Solar Dynamics Observatory, a space telescope designed to study the sun.

"SDO is working beautifully," reports project scientist Dean Pesnell of the Goddard Space Flight Center. "This is even better than we could have dreamed."

Launched on February 11th from Cape Canaveral, the observatory has spent the past two months moving into a geosynchronous orbit and activating its instruments. As soon as SDO's telescope doors opened, the spacecraft began beaming back scenes so beautiful and puzzlingly complex that even seasoned observers were stunned.
Source for story here

NASA's New Eye on the Sun Delivers Stunning First Images
View related briefing materials here.

NASA's recently launched Solar Dynamics Observatory, or SDO, is returning early images that confirm an unprecedented new capability for scientists to better understand our sun’s dynamic processes. These solar activities affect everything on Earth.

Some of the images from the spacecraft show never-before-seen detail of material streaming outward and away from sunspots. Others show extreme close-ups of activity on the sun’s surface. The spacecraft also has made the first high-resolution measurements of solar flares in a broad range of extreme ultraviolet wavelengths.

"These initial images show a dynamic sun that I had never seen in more than 40 years of solar research,” said Richard Fisher, director of the Heliophysics Division at NASA Headquarters in Washington. "SDO will change our understanding of the sun and its processes, which affect our lives and society. This mission will have a huge impact on science, similar to the impact of the Hubble Space Telescope on modern astrophysics.”

(From NASA:) A full-disk multiwavelength extreme ultraviolet image of the sun taken by SDO on March 30, 2010. False colors trace different gas temperatures. Reds are relatively cool (about 60,000 Kelvin, or 107,540 F); blues and greens are hotter (greater than 1 million Kelvin, or 1,799,540 F). Credit: NASA
(From NASA:) A full-disk multiwavelength extreme ultraviolet image of the sun taken by SDO on March 30, 2010. False colors trace different gas temperatures. Reds are relatively cool (about 60,000 Kelvin, or 107,540 F); blues and greens are hotter (greater than 1 million Kelvin, or 1,799,540 F). Credit: NASA

Source of Picture is taken from here