Viewing archive of Friday, 10 September 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 Sep 10 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 253 Issued at 0245Z on 10 SEP 1999 This report is compiled from data received at SWO on 09 SEP
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0151 0151 0151                       230
0618 0619 0619                       180
1514 1514 1514                       120
1613 1637 1708  8690 N13E37 C3.3  SF 32000  150
B. Proton Events
None.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED. A SUDDEN IMPULSE WAS OBSERVED AT 09/1257 UT.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 107  SSN 113  AFR/AP 008/008   X-RAY BACKGROUND B2.5
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 3.3E+05   GT 10 MEV 1.3E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 1.00E+07 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 3 1 2 2 3 2 2 2 PLANETARY 3 1 2 2 3 3 2 2
F. Comments
  None.


All times in UTC

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/11M1.3
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024175.7 +9.3
Last 30 days166.1 +21.7

This day in history*

Solar flares
12012M8.59
22012M4.14
32005M3.59
42012M3.56
52003M2.36
DstG
11960-339G5
21998-131G2
31989-121G1
41999-106G2
51979-92G1
*since 1994

Social networks