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Solar wind
speed: 380.2 km/sec
density: 8.2 protons/cm3
explanation | more data
Updated: Today at 2346 UT
X-ray Solar Flares
6-hr max: C2
2300 UT Jun08
24-hr: C4
0000 UT Jun08
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 08 Jun 13
Sunspot AR1765 has a beta-gamma magnetic field that harbors energy for M-class solar flares. Credit: SDO/HMI
Sunspot number: 76
What is the sunspot number?
Updated 08 Jun 2013

Spotless Days
Current Stretch: 0 days
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%)
Since 2004: 821 days
Typical Solar Min: 486 days

08 Jun 2013

The Radio Sun
10.7 cm flux: 110 sfu
explanation | more data
Updated 08 Jun 2013

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 3
explanation | more data
Interplanetary Mag. Field
Btotal: 2.2 nT
Bz: 0.4 nT south
explanation | more data
Updated: Today at 2346 UT
Coronal Holes: 07 Jun 13
Solar wind flowing from this coronal hole should hit Earth's magnetic field on June 9-10. Credit: SDO/AIA.

NEW: is now posting 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: 06-08-2013 10:55:03
NOAA Forecasts
Updated at: 2013 Jun 08 2200 UTC
0-24 hr
24-48 hr
10 %
10 %
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: 2013 Jun 08 2200 UTC
0-24 hr
24-48 hr
40 %
20 %
20 %
05 %
05 %
01 %
High latitudes
0-24 hr
24-48 hr
10 %
15 %
25 %
30 %
60 %
30 %
Saturday, Jun. 8, 2013
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

NOCTILUCENT CLOUDS BEHAVING STRANGELY: Noctilucent clouds have surprised researchers by appearing early this year. The unexpected apparition of electric-blue clouds before the middle of May hints at a change in the "teleconnections" of Earth's atmosphere. NASA: video, full story

M-CLASS SOLAR FLARE: At the end of the day on June 7th (2249 UT) departing sunspot AR1762 unleashed a strong M5.9-class solar flare. NASA's Solar Dynamics Observatory (SDO) recorded the extreme ultraviolet flash:

Because of the sunspot's location on the sun's southwestern limb, the blast was not particulary geoeffective. X-radiation from the flare ionized Earth's upper atmosphere, but only briefly, while a CME that flew away from the blast site is expected to miss our planet entirely. Solar flare alerts: text, voice.

NORTHERN LIGHTS IN THE USA: On June 7th, Earth passed through a region of south-pointing magnetism in the solar wind. This triggered a G2-class (Kp=6) geomagnetic storm. At its peak, the storm spawned Northern Lights as far south as the central USA. "Yes, I really am in Kansas," says photographer Clay Bramhall who sends this picture from the plains city of Goff, KS:

"The aurora surprised me," he says. "I could see the lights streaking up and down."

More auroras are in the offing. A CME that left the sun on June 5th is expected to deliver a glancing blow to Earth's magnetic field during the late hours of June 8th (or early hours of June 9th). NOAA forecasters estimate a 65% chance of geomagnetic storms when the CME arrives. Aurora alerts: text, voice.

Realtime Aurora Photo Gallery

ALBERT EINSTEIN ORBITS EARTH: On the afternoon of June 5th, the European Space Agency launched a robotic spaceship named "Albert Einstein" into Earth orbit. Also known as "ATV-4" (Automated Transfer Vehicle 4), the Albert Einstein is a cargo carrier laden with supplies for the International Space Station. Marco Langbroek saw it flying over Leiden, the Netherlands, just two hours after launch:

"The ATV-4 was very bright (mag +1 to +0.5) and easily visible to the naked eye, even from Leiden center," Langbroek. "Still in a low orbit, it was very fast."

To resupply the space station, the Albert Einstein is carrying the most dry cargo ever launched by a European spacecraft--2,480 kilograms, and the most diverse cargo mix--1400 different items. It will catch up to and dock with the ISS on June 15th. As that date approaches, the ATV-4 and the ISS will become visible in the night sky at the same time. Turn your smartphone into an ISS tracker and enjoy the show. ISS Flyby alerts: text, voice.

Realtime Space Weather Photo Gallery

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

Realtime Comet Photo Gallery

  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 June 8, 2013 there were 1397 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Miss Distance
2009 FE
Jun 4
9.6 LD
230 m
2000 FM10
Jun 5
50.3 LD
1.3 km
2002 KL3
Jun 6
66.4 LD
1.1 km
2013 LR6
Jun 8
0.3 LD
12 m
2013 LD2
Jun 10
6 LD
48 m
1999 WC2
Jun 12
39.2 LD
1.9 km
2006 RO36
Jun 18
70.9 LD
1.2 km
2001 PJ9
Jul 17
29.2 LD
1.1 km
2006 BL8
Jul 26
9.3 LD
48 m
2003 DZ15
Jul 29
7.6 LD
153 m
2005 WK4
Aug 9
8.1 LD
420 m
1999 CF9
Aug 23
24.7 LD
1.1 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.
  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
  the underlying science of space weather
Space Weather Alerts
  more links...
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