Showing posts with label Recent. Show all posts
Showing posts with label Recent. Show all posts

Friday, March 23, 2012

Report of Solar flare Activity march 2012

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).

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       green

Monday, 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.

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 + CME
A 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.