Viewing archive of Sunday, 17 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 17 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 048 Issued at 0245Z on 17 Feb 2002 This report is compiled from data received at SWO on 16 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0053 0000 0058 II 1530 1530 1532 130 2344 2344 2344 170
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM SATURDAY
INTENSIFYING WARMING OVER THE CANADIAN ARCTIC AND NORTHERN ASIA,
PENETRATING DOWNWARDS. TEMPERATURE GRADIENT BETWEEN 60 N AND THE
POLE FROM 20 HPA UPWARDS.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 194 SSN 134 Afr/Ap 006/005 X-ray Background B6.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.4e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.00e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 1 1 1 3 3 2 2 Planetary 2 0 0 1 1 2 2 2
F. Comments
None
All times in UTC
Latest news
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Wednesday, 31 December 2025
Happy New Year! Celebrate with an M7.1 solar flare!
Latest forum messages
AR4366 52Incoming & Unnumbered Active Regions 139X1.9 CME 1342Broad-spectrum aurora pillars 47CH 17 14
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 | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| 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 |
| Last 30 days | 119.2 +2.7 |