linuxgeek
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astronomy & space stuff
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linuxgeek
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http://www.discovery.com/tv/schedule/gallery/scilgo.gif
Jan 16 2005 @ 08:00 PM
Cassini-Huygens: Discoveries This Week Special
Jan 16 2005 @ 08:00 PM
Cassini-Huygens: Discoveries This Week Special
linuxgeek
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Date: Sun, 16 Jan 2005 22:10:02 GMT
From: Space Environment Center <sec@sec.noaa.gov>
To: forecast-send@dawn.sec.noaa.gov
Subject: RSGA
roduct: Report of Solar-Geophysical Activity
:Issued: 2005 Jan 16 2210 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
#Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 016 Issued at 2200Z on 16 Jan 2005
IA. Analysis of Solar Active Regions and Activity from 15/2100Z to 16/2100Z: Solar activity was high. Region 720 (N13W15) produced several flares throughout the day. The largest was an X2/3B at 15/2302 UTC. This flare was associated with significant radio output that included 6400 sfu at 2695 MHz and type II/IV radio sweeps. There was also an asymmetric full halo CME associated with this event. The region remains large and magnetically complex, showing little structural changes since this major flare. New Regions 721 (S03E14) and 722 (N19E04) were numbered.
IB. Solar Activity Forecast: Solar activity is expected to be high to very high. Region 720 appears capable of additional major flares.
IIA. Geophysical Activity Summary 15/2100Z to 16/2100Z: The geomagnetic field ranged from quiet to active levels. A proton event at greater than 10 MeV began at 16/0210 UTC in response to the X2 flare mentioned in Part IA and remains in progress. Peak flux observed so far was 312 pfu at 16/1935 UTC. The greater than 2 MeV electron flux was high.
IIB. Geophysical Activity Forecast: The geomagnetic field activity is expected to increase to major to severe storm levels within the next several hours with the arrival of the first of at least two expected CMEs generated over the past few days by Region 720. The proton event is expected to continue in progress.
From: Space Environment Center <sec@sec.noaa.gov>
To: forecast-send@dawn.sec.noaa.gov
Subject: RSGA
roduct: Report of Solar-Geophysical Activity:Issued: 2005 Jan 16 2210 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
#Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 016 Issued at 2200Z on 16 Jan 2005
IA. Analysis of Solar Active Regions and Activity from 15/2100Z to 16/2100Z: Solar activity was high. Region 720 (N13W15) produced several flares throughout the day. The largest was an X2/3B at 15/2302 UTC. This flare was associated with significant radio output that included 6400 sfu at 2695 MHz and type II/IV radio sweeps. There was also an asymmetric full halo CME associated with this event. The region remains large and magnetically complex, showing little structural changes since this major flare. New Regions 721 (S03E14) and 722 (N19E04) were numbered.
IB. Solar Activity Forecast: Solar activity is expected to be high to very high. Region 720 appears capable of additional major flares.
IIA. Geophysical Activity Summary 15/2100Z to 16/2100Z: The geomagnetic field ranged from quiet to active levels. A proton event at greater than 10 MeV began at 16/0210 UTC in response to the X2 flare mentioned in Part IA and remains in progress. Peak flux observed so far was 312 pfu at 16/1935 UTC. The greater than 2 MeV electron flux was high.
IIB. Geophysical Activity Forecast: The geomagnetic field activity is expected to increase to major to severe storm levels within the next several hours with the arrival of the first of at least two expected CMEs generated over the past few days by Region 720. The proton event is expected to continue in progress.
gypsywitch
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linuxgeek said:
linuxgeek
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gypsywitch said:
yeah. The realtime ones on the SOHO site are much larger. They probably have some more detailed ones on the actual flares, but went with the small ones so they would load quickly even for dialup users.
http://sohowww.nascom.nasa.gov/data/realtime/gif/
DreamWeaver
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Fast-developing sunspot could match historic flares of Nov. '03
http://www.kathymcmahon.utvinternet.com/mrn/anewspic/Sunspot720_strip.gif
The sunspot grew quickly over the last four days -Image Spaceweather.com
http://www.kathymcmahon.utvinternet.com/mrn/anewspic/SolarSpot10720.jpg
Solar Tsunami Alert As Giant Sunspot Erupts
Three days ago the sunspot numbered 10720 barely rated a mention. But as it rotated into an earth-facing position, the boiling solar cauldron quickly mushroomed in size to over seven times the diameter of our own planet. Now experienced observers say it has explosive potential for massive solar eruptions aimed at Earth.
By late yesterday, the sunspot was large enough to be seen with the unaided eye, and SpaceWeather.com was warning the sunspot posed a threat for strong M-class solar flares. However early today, solar watcher Jan Alvestad reported that the sunspot has already produced an even stronger X-class 1.2 flare at 00:43UT.
It's been a busy 24 hours on the sun. A total of 28 C-class events were recorded yesterday --the most C flares in a single day during the current solar cycle 23.
Alvestad also noted that Sunspot 10720 now had the largest penumbra observed in solar cycle 23. In his 5am report he wrote:
"Within this penumbra [is an] extremely strong positive polarity field in the south. That positive polarity area has the longest and largest umbra I have ever observed."
Not only that, but the internal structure of the sunspot is capable of producing spectacular effects, according to Alvestad's evaluation.
Alvestad says the western end the positive umbra is actually in contact with the negative polarity umbra --causing exceptional magnetic shear. When the structure of the magnetic field around a sunspot becomes twisted and sheared, then magnetic field lines can connect with explosive results.
The size of 10720 and its observed structure have significant implications: "Extremely energetic flares, above the X10 class level, are possible," writes Alvestad "This region has the potential to generate flares similar to those observed in October/November 2003."
Such an X-class 10 flare would certainly rank along with the historic flares of late 2003, when a series of nine massive X-class solar eruptions in only 12 days all largely missed Earth.
Coronal mass ejections move like a three-dimensional wave, sweeping outward from the epicenter at the Sun. Even though Earth was not directly struck, two Japanese satellite failures and a power outage in Sweden were blamed on the solar storms.
http://www.space.com/images/031104_cme_anim_03.gif
Those outbursts culminated in an X20 --the largest ever recorded. That remarkable flare emanated from a region of the Sun about 15 times the size of Earth. The sunspot had already rotated around to the back side of the Sun, so the massive outburst was thankfully not pointed at Earth.
We will need the same luck again, as Sunspot 10720 will be aimed towards Earth for the next few days.
Commercial space weather forecast center Spacew.com notes that should eruptions occur, they are : "likely to be associated with Earthward-directed coronal mass ejections."
The estimates of the risk of a significant eruption are taking place against a backdrop of Solar Radio Flux measurements showing a significant rise in recent days.
Should an Earth-directed eruption occur, its effects will depend in part on the orientation of the magnetic field of the ejected solar material. A southward orientation would more deeply penetrate Earth's northward-facing magnetic ionosphere. Despite the massive explosive power of such sunspots, our protective magnetic field means significant effects are unlikely to be felt at the surface of Earth.
In severe storms, people in high-altitude airliners can be exposed to the x-ray component of the eruptions. Owners and insurers of earth-orbiting satellites have the most to loose. They hope to be breathing easier by the end of the coming week, when Sunspot 10720 will no longer have Earth in its sights.
http://www.kathymcmahon.utvinternet.com/mrn/anewspic/Solar050114.jpg
http://www.breakfornews.com/articles/SolarTsunamiAlert.htm
http://www.kathymcmahon.utvinternet.com/mrn/anewspic/Sunspot720_strip.gif
The sunspot grew quickly over the last four days -Image Spaceweather.com
http://www.kathymcmahon.utvinternet.com/mrn/anewspic/SolarSpot10720.jpg
Solar Tsunami Alert As Giant Sunspot Erupts
Three days ago the sunspot numbered 10720 barely rated a mention. But as it rotated into an earth-facing position, the boiling solar cauldron quickly mushroomed in size to over seven times the diameter of our own planet. Now experienced observers say it has explosive potential for massive solar eruptions aimed at Earth.
By late yesterday, the sunspot was large enough to be seen with the unaided eye, and SpaceWeather.com was warning the sunspot posed a threat for strong M-class solar flares. However early today, solar watcher Jan Alvestad reported that the sunspot has already produced an even stronger X-class 1.2 flare at 00:43UT.
It's been a busy 24 hours on the sun. A total of 28 C-class events were recorded yesterday --the most C flares in a single day during the current solar cycle 23.
Alvestad also noted that Sunspot 10720 now had the largest penumbra observed in solar cycle 23. In his 5am report he wrote:
"Within this penumbra [is an] extremely strong positive polarity field in the south. That positive polarity area has the longest and largest umbra I have ever observed."
Not only that, but the internal structure of the sunspot is capable of producing spectacular effects, according to Alvestad's evaluation.
Alvestad says the western end the positive umbra is actually in contact with the negative polarity umbra --causing exceptional magnetic shear. When the structure of the magnetic field around a sunspot becomes twisted and sheared, then magnetic field lines can connect with explosive results.
The size of 10720 and its observed structure have significant implications: "Extremely energetic flares, above the X10 class level, are possible," writes Alvestad "This region has the potential to generate flares similar to those observed in October/November 2003."
Such an X-class 10 flare would certainly rank along with the historic flares of late 2003, when a series of nine massive X-class solar eruptions in only 12 days all largely missed Earth.
Coronal mass ejections move like a three-dimensional wave, sweeping outward from the epicenter at the Sun. Even though Earth was not directly struck, two Japanese satellite failures and a power outage in Sweden were blamed on the solar storms.
http://www.space.com/images/031104_cme_anim_03.gif
Those outbursts culminated in an X20 --the largest ever recorded. That remarkable flare emanated from a region of the Sun about 15 times the size of Earth. The sunspot had already rotated around to the back side of the Sun, so the massive outburst was thankfully not pointed at Earth.
We will need the same luck again, as Sunspot 10720 will be aimed towards Earth for the next few days.
Commercial space weather forecast center Spacew.com notes that should eruptions occur, they are : "likely to be associated with Earthward-directed coronal mass ejections."
The estimates of the risk of a significant eruption are taking place against a backdrop of Solar Radio Flux measurements showing a significant rise in recent days.
Should an Earth-directed eruption occur, its effects will depend in part on the orientation of the magnetic field of the ejected solar material. A southward orientation would more deeply penetrate Earth's northward-facing magnetic ionosphere. Despite the massive explosive power of such sunspots, our protective magnetic field means significant effects are unlikely to be felt at the surface of Earth.
In severe storms, people in high-altitude airliners can be exposed to the x-ray component of the eruptions. Owners and insurers of earth-orbiting satellites have the most to loose. They hope to be breathing easier by the end of the coming week, when Sunspot 10720 will no longer have Earth in its sights.
http://www.kathymcmahon.utvinternet.com/mrn/anewspic/Solar050114.jpg
http://www.breakfornews.com/articles/SolarTsunamiAlert.htm
gypsywitch
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gypsywitch
sappy n' sassy
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gypsywitch
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fermented grapes and burning weeds 
linuxgeek
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Date: Mon, 17 Jan 2005 15:05:02 GMT
From: Space Environment Center <sec@sec.noaa.gov>
To: wwv-list-send@dawn.sec.noaa.gov
Subject: WWV-Message
roduct: Geophysical Alert Message wwv.txt
:Issued: 2005 Jan 17 1505 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 16 January follow.
Solar flux 145 and mid-latitude A-index 12.
The mid-latitude K-index at 1500 UTC on 17 January was 6 (190 nT).
Space weather for the past 24 hours has been strong.
Geomagnetic storms reaching the G3 level occurred.
Solar radiation storms reaching the S3 level occurred.
Radio blackouts reaching the R3 level occurred.
Space weather for the next 24 hours is expected to be strong.
Geomagnetic storms reaching the G3 level are expected.
Solar radiation storms reaching the S3 level are expected.
Radio blackouts reaching the R3 level are expected.
From: Space Environment Center <sec@sec.noaa.gov>
To: wwv-list-send@dawn.sec.noaa.gov
Subject: WWV-Message
roduct: Geophysical Alert Message wwv.txt:Issued: 2005 Jan 17 1505 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 16 January follow.
Solar flux 145 and mid-latitude A-index 12.
The mid-latitude K-index at 1500 UTC on 17 January was 6 (190 nT).
Space weather for the past 24 hours has been strong.
Geomagnetic storms reaching the G3 level occurred.
Solar radiation storms reaching the S3 level occurred.
Radio blackouts reaching the R3 level occurred.
Space weather for the next 24 hours is expected to be strong.
Geomagnetic storms reaching the G3 level are expected.
Solar radiation storms reaching the S3 level are expected.
Radio blackouts reaching the R3 level are expected.
linuxgeek
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AURORA ALERT: If it's dark where you live, look outside. A strong geomagnetic storm is in progress after one (and possibly two) coronal mass ejections hit Earth's magnetic field this morning. Bright auroras have been sighted in Alaska and Canada.
Meanwhile, giant sunspot 720 has unleashed another big solar flare. The X3-class explosion peaked at 0950 GMT (4:50 am EST) on Jan. 17th and hurled a CME in our direction. The many speckles in this SOHO coronagraph image of the CME are caused by protons accelerated to light speed by the blast hitting SOHO's digital camera.
The incoming CME will hit Earth's magnetic field on Jan. 18th or 19th, possibly energizing another geomagnetic storm.
http://www.spaceweather.com/images2005/17jan05/cme_c3_big.gif
Meanwhile, giant sunspot 720 has unleashed another big solar flare. The X3-class explosion peaked at 0950 GMT (4:50 am EST) on Jan. 17th and hurled a CME in our direction. The many speckles in this SOHO coronagraph image of the CME are caused by protons accelerated to light speed by the blast hitting SOHO's digital camera.
The incoming CME will hit Earth's magnetic field on Jan. 18th or 19th, possibly energizing another geomagnetic storm.
http://www.spaceweather.com/images2005/17jan05/cme_c3_big.gif
linuxgeek
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Looks like the solar wind is starting to pickup...
http://www.sec.noaa.gov/rt_plots/satenv_200501172341.gif
http://www.sec.noaa.gov/rt_plots/satenv_200501172341.gif
linuxgeek
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Aurora Forecast for Monday, January 17, 2005
Auroral activity will be at its maximum peak today. Highly active auroral displays will be visible over all of Alaska and low on the horizon in most of the northern U.S.
http://www.gi.alaska.edu/aurora_predict/images/q8.jpg
Auroral activity will be at its maximum peak today. Highly active auroral displays will be visible over all of Alaska and low on the horizon in most of the northern U.S.
http://www.gi.alaska.edu/aurora_predict/images/q8.jpg
linuxgeek
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Date: Mon, 17 Jan 2005 22:10:17 GMT
From: Space Environment Center <sec@sec.noaa.gov>
To: advisory-list-send@dawn.sec.noaa.gov
Subject: Space-Weather-Bulletin
Official Space Weather Advisory issued by NOAA Space Environment Center
Boulder, Colorado, USA
SPACE WEATHER ADVISORY BULLETIN #05- 2
2005 January 17 at 12:52 p.m. MST (2005 January 17 1952 UTC)
**** LARGE ACTIVE REGION PRODUCES STRONG SOLAR STORMS ****
The large and dynamic active sunspot region, numbered by NOAA as Region 720, has produced several strong solar events. Five large solar flares produced moderate (R2) to strong (R3) radio blackouts since 15 January. The largest of these solar eruptions, an X3.8 on the GOES-12 x-ray sensor, occurred today at 17/0659 UTC (near local midnight MST). Short-wave radio communications through the sunlit hemisphere of Earth experienced significant signal degradation during these solar flares.
Associated strong geomagnetic and radiation storms are underway. The radiation storm began on 16/0210 UTC (15 January, 7:10 P.M. MST) and is currently at the S3 (strong level). A G3 (strong) geomagnetic storm began early on the 17th (UTC) and remains in progress. The geomagnetic storm is associated with two coronal mass ejections (CMEs) observed on SOHO/LASCO imagery on 15 January.
A third Earth-directed CME was observed today following the X3.8 flare. This CME is expected to impact the geomagnetic field on 18 and 19 January with strong (G3) to severe (G4) geomagnetic storm levels. The radiation storm in progress now is expected to continue for several more days.
Active Region 720 is a large and complex sunspot cluster. Further major eruptions are possible from this region before it rotates around the visible solar disk on 22 January. Agencies impacted by solar flare radio blackouts, geomagnetic storms, and solar radiation storms should continue to closely monitor the space environment through the remainder of this week.
Data used to provide space weather services are contributed by NOAA, USAF, NASA, NSF, USGS, the International Space Environment Services and other observatories, universities, and institutions. For more information, including email services, see SEC's Space Weather Advisories Web site http://sec.noaa.gov/advisories
From: Space Environment Center <sec@sec.noaa.gov>
To: advisory-list-send@dawn.sec.noaa.gov
Subject: Space-Weather-Bulletin
Official Space Weather Advisory issued by NOAA Space Environment Center
Boulder, Colorado, USA
SPACE WEATHER ADVISORY BULLETIN #05- 2
2005 January 17 at 12:52 p.m. MST (2005 January 17 1952 UTC)
**** LARGE ACTIVE REGION PRODUCES STRONG SOLAR STORMS ****
The large and dynamic active sunspot region, numbered by NOAA as Region 720, has produced several strong solar events. Five large solar flares produced moderate (R2) to strong (R3) radio blackouts since 15 January. The largest of these solar eruptions, an X3.8 on the GOES-12 x-ray sensor, occurred today at 17/0659 UTC (near local midnight MST). Short-wave radio communications through the sunlit hemisphere of Earth experienced significant signal degradation during these solar flares.
Associated strong geomagnetic and radiation storms are underway. The radiation storm began on 16/0210 UTC (15 January, 7:10 P.M. MST) and is currently at the S3 (strong level). A G3 (strong) geomagnetic storm began early on the 17th (UTC) and remains in progress. The geomagnetic storm is associated with two coronal mass ejections (CMEs) observed on SOHO/LASCO imagery on 15 January.
A third Earth-directed CME was observed today following the X3.8 flare. This CME is expected to impact the geomagnetic field on 18 and 19 January with strong (G3) to severe (G4) geomagnetic storm levels. The radiation storm in progress now is expected to continue for several more days.
Active Region 720 is a large and complex sunspot cluster. Further major eruptions are possible from this region before it rotates around the visible solar disk on 22 January. Agencies impacted by solar flare radio blackouts, geomagnetic storms, and solar radiation storms should continue to closely monitor the space environment through the remainder of this week.
Data used to provide space weather services are contributed by NOAA, USAF, NASA, NSF, USGS, the International Space Environment Services and other observatories, universities, and institutions. For more information, including email services, see SEC's Space Weather Advisories Web site http://sec.noaa.gov/advisories
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linuxgeek
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linuxgeek
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linuxgeek
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linuxgeek
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X-FLARE: Giant sunspot 720 unleashed another X-class solar flare this morning. The explosion did propel a coronal mass ejection into space--but not toward Earth.
http://www.spaceweather.com/images2005/19jan05/midi140.gif
http://www.spaceweather.com/images2005/19jan05/midi140.gif
linuxgeek
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AURORA WATCH: Earth's magnetic field is still reverberating from a series of CME-hits this week. Another hit could be in store if this morning's X7-flare sent a CME toward Earth. Sky watchers, remain alert for auroras. [gallery]
Would you believe ... auroras in Arizona? During a brief but strong geomagnetic storm on Jan. 18th, Chris Schur took this picture of a red glow over Payson, Arizona:
http://www.spaceweather.com/aurora/images2005/18jan05/schur2_strip2.jpg
"This is an exellent case of a mostly photographic aurora--a deep reddish glow visible to the camera but not to the unaided eye," says Schur. "It started in the northern sky after midnight, and as the Kp index grew to 7 by early morning, the glow increased in size to more than 35 degrees over the northern horizon."
Would you believe ... auroras in Arizona? During a brief but strong geomagnetic storm on Jan. 18th, Chris Schur took this picture of a red glow over Payson, Arizona:
http://www.spaceweather.com/aurora/images2005/18jan05/schur2_strip2.jpg
"This is an exellent case of a mostly photographic aurora--a deep reddish glow visible to the camera but not to the unaided eye," says Schur. "It started in the northern sky after midnight, and as the Kp index grew to 7 by early morning, the glow increased in size to more than 35 degrees over the northern horizon."
linuxgeek
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BIG SUNSPOT: Sunspot 720 is huge--about as wide as the planet Jupiter. On Wednesday, Jan. 19th, Don Brown took this picture of the sun rising over Park City, Utah. The giant 'spot is clearly visible:
http://www.spaceweather.com/swpod2005/20jan05/brown1_strip.jpg
This active region has unleashed four X-class solar flares, sparking bright auroras over Canada and Alaska. The latest flare, an X7-class blast on Jan. 20th, might energize a new geomagnetic storm on Jan. 21st.
http://www.spaceweather.com/swpod2005/20jan05/brown1_strip.jpg
This active region has unleashed four X-class solar flares, sparking bright auroras over Canada and Alaska. The latest flare, an X7-class blast on Jan. 20th, might energize a new geomagnetic storm on Jan. 21st.
