Viewing archive of Saturday, 11 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 11 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 101 Issued at 0245Z on 11 APR 1998 This report is compiled from data received at SWO on 10 APRA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 2130 2130 2130 110
B. Proton Events
None.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS AT QUIET
TO MINOR STORM LEVELS. ACTIVE LEVELS WERE DETECTED AROUND MIDDAY AT
HIGH LATITUDES. ACTIVE LEVELS OCCURRED AGAIN AT ALL LATITUDES DURING
10/1500-1800UT WITH ISOLATED MINOR STORM PERIODS DETECTED AT HIGH
LATITUDES.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 130 SSN 145 AFR/AP 010/011 X-RAY BACKGROUND B4.8 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 2.2E+06 GT 10 MEV 2.1E+04 P/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 7.80E+05 E/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) 3 HOUR K-INDICES: BOULDER 2 2 2 3 2 4 3 3 PLANETARY 2 2 2 3 2 4 3 3
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 329Unspecified geomagnetic activity 1749Power 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 |