Viewing archive of Friday, 28 March 2003
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 2003 Mar 28 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 087 Issued at 0245Z on 28 Mar 2003 This report is compiled from data received at SWO on 27 MarA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0838 0838 0838 220 1238 1238 1238 230 1555 1555 1555 370
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from
quiet to minor storm levels. The Bz component of the interplanetary
magnetic field ranged from +/- 10 nT throughout the period due to a
recurrent high speed stream (approximately 525 km/s at the time of
this writing). The greater than 2 MeV electron fluxes at
geosynchronous orbit reached moderate levels today.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 141 SSN 156 Afr/Ap ???/027 X-ray Background B4.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.2e+05 GT 10 MeV 1.1e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 8.30e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 4 2 5 4 3 4 3 3 Planetary 5 2 5 4 4 5 3 3
F. Comments
None
All times in UTC
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
Incoming & Unnumbered Active Regions 158What, no CH/HSS thread? 31Current Farside Activity 379Filaments and prominences 488AR4377 5
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 | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/15 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 109 -3.6 |
| Last 30 days | 126.1 +25.9 |