Viewing archive of Wednesday, 2 September 1998
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 1998 Sep 02 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 245 Issued at 0245Z on 02 SEP 1998 This report is compiled from data received at SWO on 01 SEPA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0449 0459 0506 8307 N32W78 M1.5 1F 58 1343 1343 1344 210 1548 1608 1629 8319 N21W65 SF 180
B. Proton Events
THE GREATER THAN 10 MEV PROTON FLUX IS NEAR
BACKGROUND LEVELS.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS AT QUIET
TO ACTIVE LEVELS AT MID-LATITUDES AND AT QUIET TO SEVERE STORM LEVELS
AT HIGH LATITUDES. DURING THE PERIOD FROM 1500 UT TO 1800 UT, COLLEGE
HAD A VARIATION OF OVER 1000 NANOTESLA.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 177 SSN 129 AFR/AP 013/018 X-RAY BACKGROUND C1.0 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 9.1E+05 GT 10 MEV 3.5E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 7.40E+07 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 3 4 2 2 2 4 3 3 PLANETARY 3 4 2 3 4 4 3 3
F. Comments
ENERGETIC ELECTRON FLUXES WITH ENERGY GREATER THAN 2 MEV WERE OVER ALERT LEVELS OF GREATER 1000 PFU FOR PORTIONS OF THE DAY.
All times in UTC
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4366 785X8 CME 20Space Weather Memes 78650 mhz F2 83Do the high-resolution sunspot counts point to more complex sunspots? 48
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2026/02/03 | X1.5 |
| Last M-flare | 2026/02/04 | M1.1 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 133 +9 |
| Last 30 days | 120.6 +10.9 |