Viewing archive of Wednesday, 8 April 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 Apr 08 0245 UTCPrepared 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 1998 This report is compiled from data received at SWO on 07 APRA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1223 1224 1225 150 1231 1231 1232 370 1542 1542 1542 110 1603 1604 1605 150 1613 1613 1614 330 2048 2059 2105 C1.2 110
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET
UNTIL A SUDDEN IMPULSE (SI) OCCURRED AT 1750Z. SINCE THEN THE
MID-LATITUDES HAVE BEEN UNSETTLED AND THE HIGH LATITUDES HAVE BEEN
AT ACTIVE TO MINOR STORM LEVELS.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 135 SSN 120 AFR/AP 005/008 X-RAY BACKGROUND B6.6 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 7.1E+05 GT 10 MEV 3.5E+04 P/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 6.70E+05 E/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) 3 HOUR K-INDICES: BOULDER 2 2 2 0 1 2 3 3 PLANETARY 2 2 2 1 2 3 3 3
F. Comments
THE SI FOLLOWS A SHOCK SEEN AT ACE AT 1650Z.
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
Unspecified geomagnetic activity 1749Strong far side CME 327Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 9Filaments and prominences 595Incoming & Unnumbered Active Regions 1351
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 |