|
  SPACE WEATHER
Current
Conditions
Solar Wind
velocity: 277.4
km/s
density:0.8
protons/cm3
More
about these data
Updated: Today at 2241
UT
Note: ACE solar
wind data, reported above, remain unreliable as the ongoing radiation
storm persists. An alternate source of data is the SOHO
Proton Monitor.
Meteor Rates (24 hr max.)
visual: 5 per hr
radio (89 MHz): 25 per hr
More
about these data
Updated: 10 Nov 2000
Sunspot Number: 149
More
about sunspots
Updated:
09
Nov
2000
Daily
Sun:10 Nov '00
The sun is littered with
spots, but none have magnetic fields more complex than beta-class.
Forecasters estimate a 50% chance of M-class
solar flares.
|
Coronal
Holes:
Our planet could enter
a high speed solar wind stream from this coronal hole by Sunday,
Nov. 12. 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 2000 Nov 09 2210 UT
|
FLARE |
24 hr |
48 hr |
|
CLASS M |
50
% |
45
% |
|
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 2000 Nov 09 2210 UT
Mid-latitudes
|
24 hr |
48 hr |
|
ACTIVE |
30
% |
20
% |
|
MINOR |
10
% |
40
% |
|
SEVERE |
05
% |
25
% |
High latitudes
|
24 hr |
48 hr |
|
ACTIVE |
30
% |
20
% |
|
MINOR |
15
% |
25
% |
|
SEVERE |
05
% |
40
% |
|
What's
Up in Space -- 10
Nov
2000
Subscribe
to Space Weather News!
IMPACT! The coronal mass ejection
from a powerful solar eruption on Nov. 8th hit Earth's magnetosphere
Friday morning only 31 hours after leaving the Sun. Its earlier-than-expected
arrival at 1:00 am EST sparked a G3-class geomagnetic storm that
is still ongoing.
ONGOING RADIATION
STORM: The
flux
of high-energy protons near Earth was ~100,000 times greater than normal
on Thursday following a powerful solar flare at 2330 GMT (6:30 pm
EST) on Nov. 8th. Since then the radiation density around our
planet has declined by a factor of 10 and continues to lessen.
 The coronal mass ejection
(CME) that hit our magnetosphere today left the Sun on Nov 8th
traveling 2035 km/s (4.5 million mph). It was propelled by the
same eruption that sparked the ongoing radiation storm. The CME
is barely visible through the snow-like haze of this SOHO coronagraph
animation, captured Wednesday. The many specks and streaks are
energetic particles striking the spacecraft's CCD camera.
RECENT AURORA:
Updated Nov. 10 Geomagnetic
storms on Nov.
3rd and
Nov.
6th triggered
widespread Northern Lights.
FAST MOVING
ASTEROID: On
Nov. 7, 2000, a 250-meter wide asteroid named 2000 UG11 zipped
past our planet just 6.1 times farther away than the Moon. A
series of movies shows how the apparent speed of the asteroid rapidly
increased in the early days of November and then peaked at 29
degrees per day as the space rock made its closest approach to
Earth. Amateur astronomers with 8 inch or larger telescopes can
still spot 2000 UG11 for themselves as it slowly fades this week.
[ephemeris
for observers]
METEOR OUTLOOK: The early-November Taurids
take center stage this week as the phase of the Moon becomes
full. November's main event, the Leonids, are just around the
corner. [details] Updated Nov. 3, 2000
WEB
LINKS: NOAA
FORECAST
| GLOSSARY | SPACE
WEATHER TUTORIAL
| LESSON
PLANS
| MORE
NEWS
| BECOME
A SUBSCRIBER |
Space
Weather News
Become
a Subscriber!
Nov. 7, 2000:
Much
Ado about 2000 SG344 -- In 2071 a relic of NASA's
earliest space exploration efforts might return to Earth, if
current estimates are confirmed.
Oct. 26, 2000:
Lunar
Leonids -- On Nov. 17, 2000, the moon will plow
through a stream of debris from comet Tempel-Tuttle.
Oct. 10, 2000:
The
Moonlit Leonids 2000 -- Our planet is heading
for a minefield of cosmic dust streams laid down by periodic
comet Tempel-Tuttle. The result could be a series of meteor outbursts
on Nov. 17 and 18, 2000.
Sept. 28, 2000:
Bright
Planets and Random Meteors --
This week's
new Moon sets a dark stage for a sporadic meteor show featuring
a cast of eye-catching stars and planets.
Sept. 20, 2000:
A
Good Month for Asteroids --
Five Near-Earth
Asteroids flew past our planet during the month of September.
Sept. 13, 2000:
A
Surprising Coronal Mass Ejection
-- A solar
filament collapsed and fell to the surface of the Sun, spawning
a coronal mass ejection that forecasters didn't expect.
Sept. 5, 2000:
Sunbathing
at Solar Max -- NASA scientists say that
solar maximum is now in full swing. Does that mean you're more
likely to suffer a sunburn at the beach? This story reveals the
answer.
Sept. 1, 2000:
A
Close Encounter with a Space Rock
-- A half-kilometer
wide asteroid zooms past Earth barely 12 times farther from our
planet than the Moon.
Aug. 14, 2000: The
Extraordinary Geomagnetic Perseid Meteor Shower -- A
coronal mass ejection hit Earth's magnetosphere just before the
peak of the 2000 Perseid meteor shower.
Aug. 8, 2000: Perseid
Dawn -- Stargazers
could spot as many as 100 Perseid meteors per hour before dawn
on August 12.
MORE SPACE WEATHER HEADLINES |
