|   SPACE WEATHER
Current
Conditions
Solar Wind
velocity: 382.1 km/s
density:5.1 protons/cm3
explanation | more data
Updated: Today at 2246 UT
X-ray Solar Flares
6-hr max: C1 1705 UT Nov17
24-hr: M2 0525 UT Nov17
explanation | more data
Updated: Today at 2245 UT
Daily Sun: 17 Nov '01 
Sunspots 9690 and 9697 have beta-gamma magnetic fields that harbor energy for M-class solar flares. Image credit: SOHO/MDI
The Far Side of the Sun
This holographic image reveals a possibly large sunspot on the far side of the Sun. Image credit: SOHO/MDI
Sunspot Number: 200
More about sunspots
Updated: 16 Nov 2001
Radio Meteor Rate
24 hr max: 18 per hr
Listen to the Meteor Radar!
Updated: 17 Nov 2001 Interplanetary Mag. Field
Btotal: 9.1 nT
Bz: 3.3 nT south
explanation | more data
Updated: Today at 2247 UT Coronal Holes:
There are no substantial coronal holes on the Earth-facing side of the Sun. 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 17 2200 UT
| FLARE | 0-24 hr | 24-48 hr | | CLASS M | 50 % | 50 % | | CLASS X | 10 % | 10 % |
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 17 2200 UT Mid-latitudes | 0-24 hr | 24-48 hr | | ACTIVE | 20 % | 20 % | | MINOR | 05 % | 05 % | | SEVERE | 01 % | 01 % |
High latitudes | 0-24 hr | 24-48 hr | | ACTIVE | 25 % | 25 % | | MINOR | 05 % | 05 % | | SEVERE | 01 % | 01 % |
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| What's Up in Space -- 17 Nov 2001
Subscribe to Space Weather News! NASA TV: Four astronomers will host a live Leonid meteor watch this Sunday morning on NASA Television and NASA Web TV. Via email, you can ask questions or share your own meteor sightings during the TV show. Tune in to the 6-hr broadcast beginning 30 minutes past midnight EST (0530 UT) on Nov. 18th.  THE LEONIDS ARE COMING: On Saturday, Nov. 17th, sky watchers around the world saw a dozen or so Leonid meteors per hour -- including this fireball recorded by George Varros in Maryland. Saturday's sprinking of Leonids was just the beginning, though: astronomers expect a full-fledged meteor storm to erupt Sunday morning, Nov. 18th, when Earth glides through a series of dense dust clouds from comet Tempel-Tuttle. Visit these links to learn how you might see (and record) the show:
GLOBAL LEONIDS: A NASA-led team of scientists is spread out around the globe to monitor Leonid meteor activity. Last night they counted between 20 and 100 meteors per hour using image-intensified video cameras. Their hourly reports will appear here on SpaceWeather.com beginning around 0500 UT on Nov. 18th.  AURORAS: Solar activity has been low in recent days, so sky watchers won't likely see auroras during the coming Leonid meteor shower. The weekend of Nov. 6th was a different story: auroras were everywhere! Kathleen Shepherd captured this picture of a sporadic meteor streaking through Southern Lights over Westland, South Island, New Zealand. Visit our aurora gallery for more pictures.  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 17 Nov 2001 there were 344 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]
- 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]
 Nov. 7 , 2001: What Lies beneath a Sunspot -- Awesome plasma hurricanes were one of the surprises revealed when scientists peered beneath the stormy surface of our star. Oct. 26 , 2001: 'tis the Season for Auroras -- Autumn is a good time to spot Northern Lights. Oct. 17, 2001: Halley's Comet Returns ... in bits and pieces -- The annual Orionid meteor shower peaks on October 21st. Aug. 9, 2001: Horse Flies and Meteors -- Like bugs streaking down the side window of a moving car, long and colorful Perseid Earthgrazers could put on a remarkable show on August 11th. 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. MORE SPACE WEATHER HEADLINES |
