Geophysical report

Viewing archive of Saturday, 15 December 2001

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.

Solar and Geophysical Activity Summary 2001 Dec 15 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 349 Issued at 0245Z on 15 Dec 2001 This report is compiled from data received at SWO on 14 Dec

A. Energetic Events

Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0101 0101 0101  9739                 160
0840 0913 0953              M3.5     50     220    II
1457 1458 1458                       130
1941 1954 2002  9733 N16W04 M4.4  2n        100

B. Proton Events

None

C. Geomagnetic Activity Summary

The geomagnetic field was quiet to unsettled.

D. Stratwarm

None

E. Daily Indices: (real-time preliminary/estimated values)

10 cm 245  SSN 202  Afr/Ap 005/004   X-ray Background C1.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.4e+06   GT 10 MeV 1.5e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.20e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 0 1 2 1 1 2 2 3 Planetary 1 1 0 1 2 2 2 2

F. Comments

  None

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G2 - Moderate geomagnetic storm

Observed Kp: 6
Threshold reached: 22:29 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Tórshavn
Reykjavik
Trondheim

The solar wind speed is currently moderately high (589.7 km/sec.)

The strength of the interplanetary magnetic field is high (23.86nT), the direction is North (13.66nT).

The Disturbance Storm Time index predicts moderate storm conditions right now (-59nT)

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