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Solar wind
speed: 430.9 km/sec
density: 6.2 protons/cm3
explanation | more data
Updated: Today at 2347 UT
X-ray Solar Flares
6-hr max: C4
1734 UT Oct19
24-hr: X1
0506 UT Oct19
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 19 Oct 14
Huge sunspot AR2192 poses a threat for strong solar flares. Credit: SDO/HMI
Sunspot number: 60
What is the sunspot number?
Updated 19 Oct 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 19 Oct
2014

The Radio Sun
10.7 cm flux: 160 sfu
explanation | more data
Updated 19 Oct 2014

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/Ovation
Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 3
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 9.7 nT
Bz: 1.6 nT north
explanation | more data
Updated: Today at 2347 UT
Coronal Holes: 19 Oct 14
Solar wind flowing from the indicated coronal hole should reach Earth on or about Oct 22. 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 Oct 19 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
60 %
60 %
CLASS X
20 %
20 %
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 Oct 19 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
25 %
25 %
MINOR
05 %
10 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
30 %
30 %
SEVERE
30 %
40 %
 
Sunday, Oct. 19, 2014
What's up in space
 

On October 23rd there will be a partial eclipse of the Sun. Got clouds? No problem. The event will be broadcast live on the web by the Coca-Cola Science Center.

 
Solar Eclipse Live

AURORAS ON MARS TODAY? Today, Oct. 19th, Comet Siding Spring is buzzing Mars. The encounter is so close, the atmosphere of the comet could brush against the atmosphere of the planet. Will this spark auroras on Mars? A video from NASA weighs the odds of some very strange space weather.

X1-CLASS SOLAR FLARE: This comes as no surprise. Behemoth sunspot AR2192 has unleashed an X1-class solar flare. NASA's Solar Dynamics Observatory recorded the blast in this extreme UV image of the sun on Oct. 19th (0500 UT):

A pulse of ultraviolet and X-radiation from the flare caused a brief but strong HF radio blackout on the dayside of Earth, mainly over Asia and Australia.

Update (8:30 AM PDT): Remarkably, this explosion did not yield a significant CME. Just-arriving coronagraph images from SOHO show no cloud emerging from the blast site.

Big sunspots tend to produce big flares, and clearly AR2192 is no exception. More X-flares are likely as AR2192 turns toward Earth in the days ahead. Also, if you have a solar telescope, point it at the sun. This active region is a real beauty. Solar flare alerts: text, voice

Realtime Space Weather Photo Gallery

EMERALD DYNAMITE: On Oct. 18th, Earth passed through multiple folds in the heliospheric current sheet--a phenomenon known as "solar sector boundary crossings." This sparked a veritable explosion of bright auroras around the Arctic Circle. Ole Salomonsen of Tromso, Norway, captured the outburst in this photo, which he calls Emerald Dynamite:

"This is one of many spectacular auroral displays I captured tonight," says Salomonsen. "There were red auroras, green auroras, coronas, fast moving purple bands... It was the most amazing display I have witnessed in a long time."

More auroras are in the offing. NOAA forecasters expect additional solar sector boundary crossings on Oct. 19th with a 30% chance of polar geomagnetic storms before the weekend is over. Aurora alerts: text, voice

Realtime Aurora Photo Gallery

ORIONID METEOR SHOWER: Earth is entering a stream of debris from Halley's Comet, source of the annual Orionid meteor shower. When the shower peaks on Oct. 21st, pre-dawn sky watchers could see as many as 25 meteors per hour shooting out of the constellation Orion. On Oct. 17-18, NASA's All-Sky Meteor Network detected 4 Orionid fireballs over the USA, a number that could increase sharply as Earth plunges deeper into the debris stream. [full story] [sky map] [meteor radar]

Realtime Comet Photo Gallery


Realtime Eclipse 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 Oct. 19, 2014, the network reported 26 fireballs.
(19 sporadics, 5 Orionids, 2 epsilon Geminids)

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 October 19, 2014 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
2014 TV
Oct 18
4.5 LD
60 m
2014 UR
Oct 18
2.9 LD
24 m
2014 TT35
Oct 22
6.9 LD
27 m
2014 TP57
Oct 22
8.2 LD
23 m
2014 SC324
Oct 24
1.5 LD
65 m
2003 UC20
Oct 31
52.4 LD
1.0 km
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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