|   SPACE WEATHER
Current
Conditions
Solar Wind
velocity: 318.7 km/s
density:6.3 protons/cm3
explanation | more data
Updated: Today at 2245 UT
X-ray Solar Flares
6-hr max: C3 2035 UT Nov03
24-hr: C4 0740 UT Nov03
explanation | more data
Updated: Today at 2245 UT
Daily Sun: 03 Nov '01 
Active region 9682 still has a delta class magnetic field that poses a threat for X-class flares. 9684, meanwhile, has developed a gamma-class magnetic field that could unleash M-class eruptions. Image credit: SOHO/MDI
The Far Side of the Sun
This holographic image reveals no large spots on the far side of the Sun. Image credit: SOHO/MDI
Sunspot Number: 164
More about sunspots
Updated: 02 Nov 2001
Radio Meteor Rate
24 hr max: 23 per hr
Listen to the Meteor Radar!
Updated: 02 Nov 2001 Interplanetary Mag. Field
Btotal: 5.1 nT
Bz: 4.1 nT south
explanation | more data
Updated: Today at 2246 UT Coronal Holes:
A small coronal hole is forming near the Sun's central meridian. Image credit: Yohkoh Soft X-ray Telescope.
More about coronal holes
 SPACE WEATHER
NOAA
Forecasts
Solar Flares: Probabilities for a medium-sized (M-class) or a major (X-class) solar flare during the next 24/48 hours are tabulated below.
Updated at 2001 Nov 03 2200 UT
| FLARE | 0-24 hr | 24-48 hr | | CLASS M | 70 % | 70 % | | 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 2001 Nov 03 2200 UT Mid-latitudes | 0-24 hr | 24-48 hr | | ACTIVE | 15 % | 35 % | | MINOR | 10 % | 20 % | | SEVERE | 05 % | 10 % |
High latitudes | 0-24 hr | 24-48 hr | | ACTIVE | 15 % | 40 % | | MINOR | 10 % | 25 % | | SEVERE | 05 % | 10 % |
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| What's Up in Space -- 3 Nov 2001
Subscribe to Space Weather News! HERE COMES THE SUN: An explosion near sunspot 9682 at 23:52 UT on Nov 1st hurled a partial halo coronal mass ejection (CME) into space. Although the blast was not squarely Earth-directed, the CME might nevertheless deliver a glancing blow to our planet's magnetosphere on Nov. 4th or 5th. High-latitude sky watchers should remain alert for auroras during the nights ahead.  SUNSPOT RISE: Using an Olympus digital camera, amateur astronomer Gunther Groenez captured this lovely image (above) of sunrise over Belgium on Nov. 2nd. Visible on the face of the Sun are the large sunspots 9682 and 9684. Click to view the a full-sized photo.  SPOOKY AURORAS: The interplanetary magnetic field tilted south on October 31st and lowered our planet's magnetic defenses against solar wind gusts. A modest geomagnetic storm began just as millions of North Americans were heading outdoors for Halloween. Photographer Mark Simpson captured this image of spooky Northern Lights near Calgary, Alberta, Canada.
MORE NORTHERN LIGHTS: A solar coronal mass ejection (movie) swept past Earth on October 28th and triggered a G2-category geomagnetic storm. Sky watchers as far south as San Diego, California, enjoyed vivid Northern Lights. Visit the Oct 28th aurora gallery and see for yourself! WEB LINKS: NOAA FORECAST | GLOSSARY | SPACE WEATHER TUTORIAL | LESSON PLANS | BECOME A SUBSCRIBER | 
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 are on a collision course with our planet, although astronomers are finding new ones all the time.
On 3 Nov 2001 there were 340 known Potentially
Hazardous Asteroids Nov. - Dec. 2001 Earth-asteroid encountersNotes: LD is a "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. 
- PERSEIDS 2001: Perseid watchers on August 12th spotted meteors, auroras, and a disintegrating Russian rocket! [gallery]
- MORNING PLANETS: In July and Aug. 2001, the Moon, Jupiter, Saturn, Venus, and Mercury put on a dazzling early-morning sky show. [gallery]
- C/2001 A2 (LINEAR): This volatile comet is still visible through small telescopes as it recedes from Earth. [gallery]
- ECLIPSE SAFARI: Onlookers cried out in delight on June 21, 2001, when the Moon covered the African Sun, revealing the dazzling corona. [gallery]
- TOTAL LUNAR ECLIPSE: On Jan. 9, 2001, the full Moon glided through Earth's copper-colored shadow. [gallery]
- CHRISTMAS ECLIPSE: Sky watchers across North America enjoyed a partial solar eclipse on Christmas Day 2000 [gallery]
- LEONIDS 2000: Observers around the globe enjoyed three predicted episodes of shooting stars. [gallery]
 July 27, 2001: Meteorites Don't Pop Corn -- A fireball that dazzled Americans on July 23rd probably didn't scorch any cornfields, contrary to widespread reports. June 12, 2001: The Biggest Explosions in the Solar System -- NASA's HESSI spacecraft aims to unravel an explosive mystery: the origin of solar flares. Feb. 21, 2001: Nature's Tiniest Space Junk -- Using an experimental radar, NASA scientists are monitoring tiny but hazardous meteoroids that swarm around our planet. Feb. 15, 2001: The Sun Does a Flip -- NASA scientists who monitor the Sun say our star's enormous magnetic field is reversing -- a sure sign that solar maximum is here. Jan. 25, 2001: Earth's Invisible Magnetic Tail -- NASA's IMAGE spacecraft, the first to enjoy a global view of the magnetosphere, spotted a curious plasma tail pointing from Earth toward the Sun. Jan. 4, 2001: Earth at Perihelion -- On January 4, 2001, our planet made its annual closest approach to the Sun. Dec. 29, 2000: Millennium Meteors -- North Americans will have a front-row seat for a brief but powerful meteor shower on January 3, 2001. Dec. 28, 2000: Galileo Looks for Auroras on Ganymede -- NASA's durable Galileo spacecraft flew above the solar system's largest moon this morning in search of extraterrestrial "Northern Lights" Dec. 22, 2000: Watching the Angry Sun -- Solar physicists are enjoying their best-ever look at a Solar Maximum thanks to NOAA and NASA satellites. MORE SPACE WEATHER HEADLINES |
