Viewing archive of Sunday, 27 June 1999

Geophysical 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.
Solar and Geophysical Activity Summary 1999 Jun 27 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 178 Issued at 0245Z on 27 JUN 1999 This report is compiled from data received at SWO on 26 JUN
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0440 0441 0445  8604 N12W70       SF 190
0508 0512 0514  8598 N23E03 M2.3  2N        63
0714 0725 0749  8598 N25E00 C7.0  1F 1000   80
B. Proton Events
A WEAK PROTON ENHANCEMENT WAS IN PROGRESS FOR MOST OF THE PERIOD. A MAXIMUM OF 1 PFU WAS OBSERVED NEAR 26/0500Z.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET AT THE BEGINNING OF THE PERIOD AND UNSETTLED TO ACTIVE FROM 26/0300Z UNTIL THE END OF THE PERIOD. SUDDEN IMPULSES WERE OBSERVED AT 26/0326Z (16 NT) AND 26/2020Z (38 NT).
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 200  SSN 310  AFR/AP 015/017   X-RAY BACKGROUND B8.7
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 3.4E+07   GT 10 MEV 3.3E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 1.40E+05 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 2 3 3 4 3 3 3 3 PLANETARY 2 3 4 4 4 3 4 3
F. Comments
  A 245 MHZ NOISE STORM WAS IN PROGRESS FOR MOST OF THE
PERIOD.


All times in UTC

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