Viewing archive of Wednesday, 27 February 2002
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 2002 Feb 27 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 058 Issued at 0245Z on 27 Feb 2002 This report is compiled from data received at SWO on 26 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0018 0018 0018 130 0335 0336 0336 100 1025 1027 1029 9830 S13W89 C9.6 Sf 220 1349 1355 1358 9845 N13E36 C3.5 Sf 240 II
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled.
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM TUESDAY
THROUGHOUT THE STRATOSPHERE STILL DISTURBED CIRCULATION PATTERN WITH
THE WARM AIR REGION OVER THE POLAR REGION AND EASTERN ASIA AND A
DISPLACES VORTEX OVER NORTHERN SIBERIA, LEADING TO A REVERSED
TEMPERATURE GRADIENT BETWEEN THE POLE AND 60 N FROM 50 TO 2 HPA AND
MEAN ZONAL EASTERLY WINDS AT 60 N FROM 3 TO 1 HPA
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 208 SSN 223 Afr/Ap 006/008 X-ray Background C1.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+05 GT 10 MeV 1.1e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.60e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 2 3 3 2 3 2 2 Planetary 2 2 3 2 2 2 2 3
F. Comments
None
All times in UTC
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Latest forum messages
AR4299 M8.1 CME 2025/12/06 162AR 4299 148AR4294 / 4296 / 4298 422Space Weather Memes 762New paper on the Gannon Storm 10-11 May 2024 2
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 | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/09 | M1.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 160.6 +68.8 |
| Last 30 days | 108.7 +12.8 |