Viewing archive of Monday, 5 March 2012
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2012 Mar 05 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 065 Issued at 2200Z on 05 Mar 2012IA. 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 to 08 Mar
| Class M | 75% | 75% | 75% |
| Class X | 30% | 30% | 30% |
| Proton | 30% | 30% | 30% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 05 Mar 132 Predicted 06 Mar-08 Mar 135/140/140 90 Day Mean 05 Mar 125
V. Geomagnetic A Indices
Observed Afr/Ap 04 Mar 010/014 Estimated Afr/Ap 05 Mar 007/008 Predicted Afr/Ap 06 Mar-08 Mar 012/015-013/020-010/010
VI. Geomagnetic Activity Probabilities 06 Mar to 08 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 35% | 15% |
| Major-severe storm | 30% | 40% | 10% |
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
Strong far side CME 323Filaments and prominences 595Incoming & Unnumbered Active Regions 1351Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 7Unspecified geomagnetic activity 1747
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |