~Space Weather Update~ M1 Class Flare~

SUBSIDING SOLAR WIND: A fast stream of solar wind that has been buffeting Earth's magnetic field is beginning to subside. Nevertheless, NOAA forecasters estimate a 30% chance of geomagnetic storms around the poles on June 8th. Magnetic storm alerts: text, voice.

SPACE STATION CROSSING: For many years, only one space station circled Earth. Now there are two. With the September 2011 launch of China's Tiangong-1, the International Space Station has company. Last night, David Blanchard saw both of them in the sky above Flagstaff, Arizona:

"The International Space Station and Tiangong-1 did a simultaneous flyby of Arizona on June 7th," says Blanchard. "Both had a rise time of 21:59 and crossed the same point in the sky about 20 seconds apart."

More crossings are in the offing, The orbits of the two spacecraft are bringing them together for near-simultaneous passes over many towns and cities in North America this weekend. Check the Simple Satellite Tracker or your smartphone for viewing times.

more images: from Dan Bush of Albany, Missouri

Solar wind
speed: 440.3 km/sec
density: 1.7 protons/cm³
explanation | more data
Updated: Today at 1517 UT

X-ray Solar Flares
6-hr max: M1 1132 UT Jun09
24-hr: M1 1132 UT Jun09
explanation | more data
Updated: Today at: 1500 UT

Daily Sun: 08 Jun 12

Sunspot 1494 poses a continued threat for M-class eruptions. Credit: SDO/HMI

Sunspot number: 90
What is the sunspot number?
Updated 07 Jun 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
Updated 07 Jun 2012

The Radio Sun
10.7 cm flux: 128 sfu
explanation | more data
Updated 07 Jun 2012

Current Auroral Oval: