Thursday, February 16, 2012

SolarHam.coms Facebook-Pinnwand: Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 047 Issued a...

SolarHam.coms Facebook-Pinnwand
SolarHam.coms Facebook-Pinnwand
Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 047 Issued a...
Feb 16th 2012, 22:02

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 047 Issued at 2200Z on 16 Feb 2012

IA. Analysis of Solar Active Regions and Activity from 15/2100Z
to 16/2100Z: Solar activity was at very low levels. The disk and
limb were quiet and stable. No Earth-directed CMEs were observed
during the period.

IB. Solar Activity Forecast: Solar activity is expected to be very
low with a chance for C-class activity for the next three days (17 -
19 February).

IIA. Geophysical Activity Summary 15/2100Z to 16/2100Z:
The geomagnetic field was at quiet to active levels. ACE solar wind
velocities varied between 350 to 400 km/s while the Bz component of
the interplanetary magnetic field was mostly northward to +5 nT.

IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at mostly quiet levels on day one (17 February)
through late on day two (18 February). Late on day two and through
day three (19 February), field activity is expected to increase to
quiet to unsettled levels, with isolated active levels, due to
recurrent coronal hole high speed stream effects.

III. Event Probabilities 17 Feb-19 Feb
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green

IV. Penticton 10.7 cm Flux
Observed 16 Feb 103
Predicted 17 Feb-19 Feb 105/105/100
90 Day Mean 16 Feb 132

V. Geomagnetic A Indices
Observed Afr/Ap 15 Feb 018/025
Estimated Afr/Ap 16 Feb 004/005
Predicted Afr/Ap 17 Feb-19 Feb 006/005-008/008-007/008

VI. Geomagnetic Activity Probabilities 17 Feb-19 Feb
A. Middle Latitudes
Active 05/30/30
Minor storm 01/15/15
Major-severe storm 01/01/01
B. High Latitudes
Active 10/40/40
Minor storm 01/20/20
Major-severe storm 01/05/05

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