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Solar wind
speed: 451.7 km/sec
density: 6.3 protons/cm3
explanation | more data
Updated: Today at 2347 UT
X-ray Solar Flares
6-hr max: C9
2105 UT Nov02
24-hr: C9
2105 UT Nov02
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 02 Nov 14
Sunspot AR2203 is growing rapidly but it does not yet pose a threat for strong flares. Credit: SDO/HMI
Sunspot number: 82
What is the sunspot number?
Updated 02 Nov 2014

Spotless Days
Current Stretch: 0 days
2014 total: 1 day (<1%)
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 Nov
2014

The Radio Sun
10.7 cm flux: 120 sfu
explanation | more data
Updated 02 Nov 2014

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/Ovation
Planetary K-index
Now: Kp= 3 quiet
24-hr max: Kp= 3
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 5.9 nT
Bz: 2.1 nT north
explanation | more data
Updated: Today at 2347 UT
Coronal Holes: 02 Nov 14
Solar wind flowing from the indicated coronal hole should reach Earth on Nov. 3-4. 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: 09-02-2014 12:55:12
SPACE WEATHER
NOAA Forecasts
Updated at: 2014 Nov 02 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
10 %
10 %
CLASS X
01 %
01 %
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 Nov 02 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
30 %
25 %
MINOR
10 %
05 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
30 %
30 %
SEVERE
40 %
30 %
 
Sunday, Nov. 2, 2014
What's up in space
 

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CHANCE OF POLAR MAGNETIC STORMS: A stream of solar wind is buffeting Earth's magnetic field, sparking beautiful lights around the Arctic Circle. The display is likely to continue over the next 48 hours. NOAA forecasters estimate a 40% chance of polar geomagnetic storms on Nov. 2nd and 3rd. Aurora alerts: text, voice

HYDER FLARE MISSES EARTH: Earth-orbiting satellites detected a solar flare on Nov. 1st. Usually solar flares come from sunspots, but there were no sunspots anywhere near this blast. A movie from the Solar Dynamics Observatory shows what happened:

The C3-category flare was caused by a filament of magnetism, which rose up and erupted between 0400 and 0600 UT. Some of the material in the filament fell back to the sun, causing a flash of X-rays where it hit the stellar surface. That was the flare. The rest of the filament flew out into space, forming the core of a massive CME. A movie from the Solar and Heliospheric Observatory shows the CME billowing away from the sun. NOAA analysts say it will not hit Earth.

Flares like this, which happen without sunspots, are called Hyder Flares. They help keep solar activity high even when sunspot counts are low. Solar flare alerts: text, voice

Realtime Aurora Photo Gallery

SOLAR ACIVITY ... BY THE NUMBERS: During the last two weeks of October, the biggest sunspot in nearly 25 years, AR2192, rotated across the solar disk crackling with strong flares. Spaceweather.com reader Sean Barnes
has prepared a summary of the eruptions. There were 26 M-flares, 6 X-flares and, perhaps most astronishly of all, zero Earth-directed CMEs. Click on the image below to browse the numbers in detail:

The monster sunspot was remarkable for both the large number of flares it produced and the small number of CMEs. When the magnetic canopy of a sunspot explodes, it typically produces a flash of electromagnetic radiation (a solar flare) and hurls a billion-ton cloud of gas (a CME) into space. The two phenomena don't always go together, but they often do. AR2192, however, was "all flash." It produced lots of solar flares but very few CMEs--only one, in fact. No one knows why.

Because AR2192 hurled zero CMEs toward Earth, our planet did not experience any geomagnetic storms during the sunspot's apparition. For aurora watchers, the Great Sunspot was actually a bit of a dud.

Right now AR2192 is transiting the farside of the sun. If it does not decay too much while it is there, the sunspot could return intact to the Earthside before mid-November. Then the numbers will start increasing again. Stay tuned. Solar flare alerts: text, voice

Realtime Space Weather Photo Gallery


Realtime Eclipse Photo Gallery


Realtime Comet 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 Nov. 2, 2014, the network reported 16 fireballs.
(14 sporadics, 2 Northern Taurids)

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 November 2, 2014 there were 1510 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
2014 UU116
Oct 29
6.8 LD
25 m
2014 UL191
Oct 29
5.2 LD
57 m
2003 UC20
Oct 31
52.4 LD
1.0 km
2014 UA176
Nov 6
4.8 LD
18 m
2014 UX57
Nov 6
3.6 LD
23 m
2014 UD192
Nov 9
3.1 LD
29 m
2004 JN13
Nov 18
52.4 LD
4.1 km
1998 SS49
Nov 18
73.9 LD
3.1 km
2005 UH3
Nov 22
44.4 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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