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Solar wind
speed: 406.9 km/sec
density: 0.6 protons/cm3
explanation | more data
Updated: Today at 2344 UT
X-ray Solar Flares
6-hr max: M3
1811 UT Feb02
24-hr: M4
0931 UT Feb02
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 02 Feb 14
Sunspot AR1967 has a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares. Credit: SDO/HMI
Sunspot number: 147
What is the sunspot number?
Updated 01 Feb 2014

Spotless Days
Current Stretch: 0 days
2014 total: 0 days (0%)
2013 total: 0 days (0%)
2012 total: 0 days (0%)
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)

Update
02 Feb 2014

The Radio Sun
10.7 cm flux: 166 sfu
explanation | more data
Updated 02 Feb 2014

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 2
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 5.0 nT
Bz: 2.3 nT south
explanation | more data
Updated: Today at 2347 UT
Coronal Holes: 02 Feb 14
There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.

Spaceweather.com posts daily satellite images of noctilucent clouds (NLCs), which hover over Earth's poles at the edge of space. The data come from NASA's AIM spacecraft. The north polar "daisy" pictured below is a composite of near-realtime images from AIM assembled by researchers at the University of Colorado's Laboratory for Atmospheric and Space Physics (LASP).
Noctilucent Clouds
Switch view: Europe, USA, Asia, Polar
Updated at: 02-02-2014 12:55:02
SPACE WEATHER
NOAA Forecasts
Updated at: 2014 Feb 02 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
80 %
80 %
CLASS X
50 %
50 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2014 Feb 02 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
20 %
20 %
MINOR
05 %
05 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
25 %
25 %
SEVERE
25 %
25 %
 
Sunday, Feb. 2, 2014
What's up in space
 

Listen to radar echoes from satellites and meteors, live on listener-supported Space Weather Radio.

 
Spaceweather Radio is on the air

CHANCE OF STORMS TODAY: NOAA forecasters estimate a 45% chance of polar geomagnetic storms on Feb. 2nd in response to a glancing blow from a CME. High-latitude sky watchers should be alert for auroras on Super Bowl Sunday. Aurora alerts: text, voice

BIG SUNSPOTS FACE EARTH: A pair of large sunspots is directly facing Earth. The larger of the two, AR1967, has a 'delta-class' magnetic field that harbors energy for powerful solar flares. NASA's Solar Dynamics Observatory photographed the behemoth during the early hours of Feb. 2nd:

AR1967 is wider than the planet Jupiter and its primary dark cores are big enough to swallow Earth many times over. The scale of the sunspot makes it an easy target for backyard solar telescopes. As shown in the gallery, astronomers around the world are snapping pictures.

The active region is already crackling with M-class solar flares. NOAA forecasters estimate a 15% chance of even stronger X-flares during the next 24 hours. Any eruptions will be squarely Earth directed. Solar flare alerts: text, voice

Realtime Space Weather Photo Gallery

NORTHERN LIGHTS: Last night on Andøya island, Norway, photographer Frank Olsen says he "had a feeling the CME from AR1967 would arrive early," so he went outside to photograph the impact. He was wrong about the CME arriving--it wouldn't come until the next day, at least--but he witnessed a great display anyway:

"Conditions were beautiful, but cold," says Olsen. "I was out for nearly 8 hours taking pictures at different locations on Andøya island."

He might be out again tonight if the now-tardy CME arrives. NOAA forecasters estimate a 45% chance of geomagnetic storms in response to an expected glancing blow from the approaching cloud. Aurora alerts: text, voice

Realtime Aurora Photo Gallery


Realtime Supernova Photo Gallery


  All Sky Fireball Network

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Feb. 1, 2014, the network reported 9 fireballs.
(9 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

On Jan. 31, 2014, the network reported 5 fireballs.
(5 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

  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 February 2, 2014 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
2014 BM25
Jan 28
2.7 LD
10 m
2012 BX34
Jan 28
9.6 LD
13 m
2014 BK25
Jan 28
3.2 LD
14 m
2014 BX43
Feb 2
9 LD
30 m
2014 BW32
Feb 3
1.9 LD
23 m
2014 BP43
Feb 8
5.5 LD
20 m
2006 DP14
Feb 10
6.2 LD
730 m
2014 BT43
Feb 11
9.8 LD
31 m
2000 EM26
Feb 18
8.8 LD
195 m
2014 BR57
Feb 20
4.4 LD
73 m
2000 EE14
Mar 6
64.6 LD
1.8 km
2003 QQ47
Mar 26
49.9 LD
1.4 km
1995 SA
Apr 2
73.1 LD
1.6 km
2000 HD24
Apr 4
42.2 LD
1.3 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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