Viewing archive of Thursday, 8 April 1999

Geophysical report

Solar and Geophysical Activity Summary 1999 Apr 08 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 098 Issued at 0245Z on 08 APR 1999 This report is compiled from data received at SWO on 07 APR
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 ACTIVE LEVELS. THE MOST DISTURBED PERIOD WAS FROM 07/0000-0300Z. AT THAT TIME, SOLAR WIND DATA DID NOT INDICATE A CME LIKE SIGNATURE. THIS SLIGHT DISTURBANCE APPEARED TO BE RELATED TO A CONSISTENTLY SOUTHWARD ORIENTED INTERPLANETARY MAGNETIC FIELD. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT REACHED HIGH LEVELS DURING THE PERIOD.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 141  SSN 121  AFR/AP 010/009   X-RAY BACKGROUND C1.0
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 6.9E+04   GT 10 MEV 1.6E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 3.20E+07 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 4 3 2 3 2 2 2 2 PLANETARY 3 3 2 2 2 2 2 2
F. Comments
  None


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