No parece que haya actividad reseñable, un poco de alteración ocasional,pero bastante normál, la 938 fue de clase C, de media-baja intensidad:
:Product: Geophysical Alert Message wwv.txt
:Issued: 2007 Jan 17 2110 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 17 January follow.
Solar flux 78 and estimated mid-latitude A-Index 22.
The mid-latitude K-index at 2100 UTC on 17 January was 4 (56 nT).
No space weather storms were observed for the past 24 hours.
No space weather storms are expected for the next 24 hours.
:Product: Solar and Geophysical Activity Summary
:Issued: 2007 Jan 17 0248 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 017 Issued at 0245Z on 17 Jan 2007
This report is compiled from data received at SWO on 16 Jan
A. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep
None
B. Proton Events: None
C. Geomagnetic Activity Summary: The geomagnetic field ranged from
quiet to minor storm levels. The elevated conditions are due to a
recurrent coronal hole high speed stream.
D. Stratwarm: Not Available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 079 SSN 018 Afr/Ap 013/013 X-ray Background A3.8
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.0e+06 GT 10 MeV 1.7e+04 p/(cm2-ster-day)
(GOES-11 satellite synchronous orbit W135 degrees)
Daily Electron Fluence
GT 2 MeV 7.40e+06 e/(cm2-ster-day)
(GOES-12 satellite synchronous orbit W75 degrees)
3 Hour K-indices:
Boulder 0 5 2 2 2 3 2 3 Planetary 1 5 1 1 2 2 3 3
F. Comments: None
:Product: Report of Solar-Geophysical Activity
:Issued: 2007 Jan 16 2204 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 2007
IA. Analysis of Solar Active Regions and Activity from 15/2100Z
to 16/2100Z: Solar activity remained at low levels. Region 938
(N02E22) produced two C-class flares during the period. The largest
was a C4/1n event occurring at 16/0242Z and a C1 event occurring
later in the period at 16/1611Z. This region continues to show
steady decay in sunspot area and exhibits a magnetic beta
configuration.
IB. Solar Activity Forecast: Solar activity is expected to be at
very low to low levels. Region 938 continues to exhibit the
potential for producing isolated C-class flares.
IIA. Geophysical Activity Summary 15/2100Z to 16/2100Z:
The geomagnetic field ranged from quiet to minor storm levels. The
elevated conditions are due to a recurrent coronal hole high speed
stream.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at unsettled levels with occasional periods of active
conditions on 17 and 18 January due to the high speed stream.
Predominantly quiet to unsettled conditions are expected on 19
January as the coronal hole moves out of geoeffective position.
III. Event Probabilities 17 Jan-19 Jan
Class M 05/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 16 Jan 079
Predicted 17 Jan-19 Jan 080/080/080
90 Day Mean 16 Jan 084
V. Geomagnetic A Indices
Observed Afr/Ap 15 Jan 014/022
Estimated Afr/Ap 16 Jan 012/020
Predicted Afr/Ap 17 Jan-19 Jan 012/015-010/015-010/012
VI. Geomagnetic Activity Probabilities 17 Jan-19 Jan
A. Middle Latitudes
Active 25/20/20
Minor storm 15/10/10
Major-severe storm 05/05/05
B. High Latitudes
Active 30/30/25
Minor storm 15/15/10
Major-severe storm 10/10/05
http://www.sec.noaa.gov/ftpmenu/latest.html
http://www.sec.noaa.gov/today.html
Tema: Campo geomagnético de inestable a activo en las próximas horas. (Leído 1060 veces)