Viewing archive of Friday, 25 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 25 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 268 Issued at 0245Z on 25 SEP 1998 This report is compiled from data received at SWO on 24 SEPA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0422 0422 0422 110 0431 0436 0441 B6.9 840 0809 0814 0819 8344 S20E05 C6.0 1N 230 1214 1214 1215 250 1335 1356 1400 360 1355 1356 1357 380 1411 1412 1415 8340 N18W08 SF 340 1615 1615 1615 300 1620 1620 1620 140
B. Proton Events
None
C. Geomagnetic Activity Summary
QUIET TO MINOR STORM. A SHOCK WAS
DETECTED AT GEOSYNCHRONOUS ORBIT AT APPROX. 2350Z.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 135 SSN 156 AFR/AP 020/028 X-RAY BACKGROUND B4.1 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 1.3E+07 GT 10 MEV 1.2E+05 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 8.70E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 3 4 4 4 2 2 2 4 PLANETARY 3 5 5 5 3 3 3 5
F. Comments
None
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
Strong far side CME 332Unspecified geomagnetic activity 1750Incoming & Unnumbered Active Regions 1352Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 9Filaments and prominences 595
More topicsSupport 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!
Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |