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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 451.9 km/sec
density: 0.1 protons/cm3
explanation | more data
Updated: Today at 2344 UT
X-ray Solar Flares
6-hr max: C1
2145 UT Oct10
24-hr: M1
0504 UT Oct10
explanation | more data
Updated: Today at: 2259 UT
Daily Sun: 10 Oct 12
A farside sunspot crackling with M-flares is about to emerge at the circled location. Credit: SDO/HMI
Sunspot number: 63
What is the sunspot number?
Updated 10 Oct 2012

Spotless Days
Current Stretch: 0 days
2012 total: 0 days (0%)
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)
Since 2004: 821 days
Typical Solar Min: 486 days

Update 10 Oct 2012


The Radio Sun
10.7 cm flux: 106sfu
explanation | more data
Updated 10 Oct 2012

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 3 quiet
24-hr max: Kp= 3
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 4.0 nT
Bz: 1.7 nT south
explanation | more data
Updated: Today at 2346 UT
Coronal Holes: 09 Oct 12
Earth is entering a stream of solar wind flowing from the indicated coronal hole. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2012 Oct 10 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
40 %
40 %
CLASS X
05 %
05 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2012 Oct 10 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
05 %
MINOR
05 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
25 %
15 %
SEVERE
20 %
05 %
 
Wednesday, Oct. 10, 2012
What's up in space
 

They came from outer space--and you can have one! Genuine meteorites are now on sale in the Space Weather Store.

 
Own your own meteorite

ASTEROID FLYBY: Newly-discovered asteroid 2012 TC4 will fly past Earth on Oct. 12th only 96,000 km (0.25 LD) away. There is no danger of a collision, but the 16 meter-wide space rock will be close enough to photograph through backyard telescopes as it brightens to approximately 14th magnitude. NASA hopes to ping this this object with radar, refining its orbit and possibly measuring its shape. Stay tuned for updates. [3D Orbit] [ephemeris] [more]

GEOMAGNETIC ACTIVITY CONTINUES: For the third day in a row, geomagnetic storms are circling the poles. In North America, auroras have spilled across the Canadian border descending as far south as Utah, Colorado, Kansas, and Nebraska. The best place to see the show, according to pilot Matt Melnyk, is from the window of an airplane:

"I photographed an unbelievable display from the cockpit at 21,000 feet while flying across Alberta Canada," says Melnyk. "Being the pilot we get a front row view of the amazing aurora and this display was nothing less than spectacular!"

The storms were instigated by a CME strike on Oct. 8th and they are about to be re-energized by a solar wind stream due to hit Earth's magnetic field on Oct. 10th. NOAA forecasters estimate a 40% chance of strong geomagnetic storms during the next 24 hours, so high-latitude sky watchers should remain alert for auroras. Aurora alerts: text, voice.

Realtime Aurora Photo Gallery

Update: Regarding the story below, "Dragon and the ISS," NASA reports that the Dragon capsule successfully docked to the space station at 9:03 a.m. EDT on Oct. 10th. [more]

DRAGON AND THE ISS: Laden with supplies, SpaceX's Dragon spacecraft is approaching the International Space Station for docking on Wednesday, Oct. 10th. Last night, David Blanchard saw the commercial spacecraft chasing the ISS across the sky above Flagstaff, Arizona:

"The Dragon capsule raced to catch the ISS as the pair moved across the western sky separated by about 20 seconds," says Blanhard. "This image is a single 30-s exposure that shows the separation and how Dragon trails ISS."

On Wednesday, these two streaks will merge. As the Dragon approaches the ISS, astronaut and station commander Suni Williams will reach out with the station's robot arm to grapple the capsule. The spacecraft will then be joined to one of the station's ports where astronauts will unload its 1,000 pounds of food, clothing, science gear and other items. Later, the astronauts will load almost 2,000 pounds of used equipment and experiments into the Dragon to be returned to Earth safely in about three weeks.

Realtime Space Weather Photo Gallery


Realtime Noctilucent Cloud Photo Gallery
[previous years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011]

  Near Earth Asteroids
Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
On October 10, 2012 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2012 TE53
Oct 6
1.6 LD
--
21 m
2012 TJ53
Oct 6
3.1 LD
--
24 m
2012 TV
Oct 7
0.7 LD
--
39 m
2012 TC4
Oct 12
0.2 LD
--
21 m
2005 GQ21
Oct 12
77 LD
--
1.0 km
1998 ST49
Oct 18
28.7 LD
--
1.3 km
1991 VE
Oct 26
34 LD
--
1.1 km
2001 CV26
Oct 30
68 LD
--
2.4 km
2007 PA8
Nov 5
16.8 LD
--
2.4 km
2010 JK1
Nov 25
9.3 LD
--
56 m
2009 LS
Nov 28
55.2 LD
--
1.1 km
2009 BS5
Dec 11
8.4 LD
--
15 m
4179 Toutatis
Dec 12
18 LD
--
2.7 km
Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.
  Essential web links
NOAA Space Weather Prediction Center
  The official U.S. government space weather bureau
Atmospheric Optics
  The first place to look for information about sundogs, pillars, rainbows and related phenomena.
Solar Dynamics Observatory
  Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever.
STEREO
  3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Solar and Heliospheric Observatory
  Realtime and archival images of the Sun from SOHO.
Daily Sunspot Summaries
  from the NOAA Space Environment Center
Heliophysics
  the underlying science of space weather
Space Weather Alerts
   
  more links...
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