Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 083 Issued at 2200Z on 23 Mar 2012
IA. Analysis of Solar Active Regions and Activity from 22/2100Z
to 23/2100Z: Solar activity was moderate. Newly numbered Region
1445 (S24E76) rotated onto the solar disk and produced an M1 flare
at 23/1940Z as well as a C6 flare at 23/1639Z. Region 1444 (N21E37)
was numbered overnight, but is small and stable.
IB. Solar Activity Forecast: Solar activity is expected to be low
to moderate, mainly due to additional activity from Region 1445.
IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z:
The geomagnetic field was initially unsettled, but decreased to quiet
levels after 23/0300Z. The elevated activity was caused by a solar
sector boundary crossing. The greater than 2 MeV electron flux at
geosynchronous orbit reached high levels during the period.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the next three days (24-26 March).
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Showing posts with label Recent. Show all posts
Friday, March 23, 2012
Report of Solar flare Activity march 2012
Tuesday, March 06, 2012
Report of Solar and Geophysical Activity 05 Mar 2012
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 065 Issued at 2200Z on 05 Mar 2012
IA. Analysis of Solar Active Regions and Activity from 04/2100Z
to 05/2100Z: Solar activity has been high. An X1/2b flare occurred
at 05/0409Z from Region 1429 (N17E41). This flare was associated
with a full halo CME with a LASCO C3 plane of sky speed of about
1340 km/sec. Region 1429 has a beta-delta magnetic class with an
area of approximately 810 millionths, and appears to be growing. The
region produced additional M-class flares during the period. New
Region 1431 (S27W36) was numbered today and is a small B-type
sunspot group.
IB. Solar Activity Forecast: Solar activity is expected to be
moderate, but there is a chance for additional major flare activity
and/or a greater than 10 MeV proton event from Region 1429.
IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z:
The geomagnetic field has been mostly quiet to unsettled with the
exception of some active to minor storm periods at high latitudes. A
greater than 10 MeV proton flux enhancement began at about 05/0030Z.
Flux levels remained elevated throughout the day and reached a peak
of 3.9 pfu at 05/1630Z. The initial increase was associated with the
long duration M2 flare of 04 March, but additional particles were
also contributed by todays X1/CME event. The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels during the
period.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be unsettled to active for day 1 (06 Mar) due to
combined effects from the M4/CME event observed on 04 March and a
favorably positioned coronal hole high speed stream. Active
conditions with a chance for minor storm periods are forecast for
the second day (07 Mar) due to a expected glancing blow from todays
X1/full halo CME. Predominantly unsettled levels are expected for
the third day (08 Mar).
III. Event Probabilities 06 Mar-08 Mar
Class M 75/75/75
Class X 30/30/30
Proton 30/30/30
PCAF greenMonday, March 05, 2012
Solar Flare Activity March 05 2012
Major X Class Solar Flare
A long duration and major X1.1 solar flare peaked at 04:09 UTC Monday morning around Sunspot 1429. A strong R3 Level Radio Blackout resulted. A bright Coronal Mass Ejection (CME) is now seen in the latest STEREO Behind and Lasco images. The expanding plasma cloud is mostly heading towards the north and east, however a small portion looks to be Earth directed. This is the 10th largest solar flare of the current Sunspot Cycle and it also happens to be the 10th X-Class flare as well. Stay Tuned for the latest updates.
A long duration and major X1.1 solar flare peaked at 04:09 UTC Monday morning around Sunspot 1429. A strong R3 Level Radio Blackout resulted. A bright Coronal Mass Ejection (CME) is now seen in the latest STEREO Behind and Lasco images. The expanding plasma cloud is mostly heading towards the north and east, however a small portion looks to be Earth directed. This is the 10th largest solar flare of the current Sunspot Cycle and it also happens to be the 10th X-Class flare as well. Stay Tuned for the latest updates.
Sunday, March 04, 2012
Recent Solar Flare Activity March 04 2012
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 064 Issued at 2200Z on 04 Mar 2012
IA. Analysis of Solar Active Regions and Activity from 03/2100Z
to 04/2100Z: Solar activity was moderate. A long duration M2/1N
flare was observed at 04/1052Z from Region 1429 (N18E55).
Associated with the event was a 750 sfu Tenflare, Type IV Radio
Sweep, and a CME first visible in STEREO B COR 2 Imagery at 04/1210Z
(estimated speed of 840 km/s). This region is classified as a Dkc
spot group with a Beta-Gamma-Delta magnetic configuration. Further
analysis of the CME will be necessary as imagery becomes available,
however there appears to be a partial Earth-directed component. A
glancing blow is possible from this event.
IB. Solar Activity Forecast: Solar activity is expected to be at
low to moderate levels with a slight chance for an X-class flare
from Region 1429.
IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z:
The geomagnetic field was at quiet to active conditions with an
isolated major storm period observed at high latitudes between
04/0900 - 1200Z. Activity was due to extended periods of the
negative Bz component of the interplanetary magnetic field near -5
nT. The solar wind speed at the ACE spacecraft was relatively
steady near 380 km/s. The greater than 2 MeV electron flux at
geosynchronous orbit reached high levels during the period.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be mostly quiet on day 1 (05 March). Activity levels
are expected to increase on day 2 (06 March) due to a possible
glancing blow from todays CME associated with the M2/1N flare.
Unsettled to active conditions are expected with isolated minor
storm periods possible. Conditions are expected to settle down to
mostly quiet to unsettled conditions by day 3 (07 March) as the
effects of the CME wane. There is a slight chance for a greater
than 10 MeV proton event from Region 1429 for the forecast period.
III. Event Probabilities 05 Mar-07 Mar
Class M 60/60/60
Class X 15/15/15
Proton 15/15/15
PCAF green
Long Duration M-Class Flare + CMEA long duration M2.0 Solar Flare peaked this morning at 10:45 UTC. The latest blast was again centered around Sunspot 1429 located in the northeast quadrant. A 46 minute long 10cm Radio Burst, also known as a TenFlare, was recorded as well and measured 750 pfu. A type IV Sweep Frequency Event resulted. Sometimes Long Duration flares can produce bright Coronal Mass Ejections. Stay Tuned to SolarHam.com for the latest information. UPDATE: The latest Solar Flare did generate a Coronal Mass Ejection. The blast is most likely directed to the east, but a portion of the cloud may be Earth directed.
Sunspot 1429 now a BGD group
A large and active Sunspot rotated into view off the northeast limb. This sunspot group was numbered 1429 on Saturday, and was responsible for several C-Class flares and now two moderate solar flares. Sunspot 1429 continues to expand and now has a Beta-Gamma-Delta magnetic configuration, the most powerful kind of classification. There will be an increasing chance for an X-Class event.
Solar Update
Solar activity continues at moderate levels. A long duration M2.0 Solar Flare peaked at 10:45 UTC this morning and was centered around large Sunspot 1429. This region continues to rotate into a more geo effective position, and the chances for Earth directed Coronal Mass Ejections will increase. There will remain a chance for further M-Class flares on Sunday and a smaller risk of an isolated X-Class flare. Another sunspot, now numbered 1430, is forming just to the west of 1429. Elsewhere, new Sunspot 1428 in the southern hemisphere is currently stable.
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