Viewing archive of Thursday, 28 June 2001
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 2001 Jun 28 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 179 Issued at 0245Z on 28 Jun 2001 This report is compiled from data received at SWO on 27 JunA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0114 0116 0125 9518 S48E58 Sf 150 1238 1238 1239 290
B. Proton Events
None
C. Geomagnetic Activity Summary
Activity was at unsettled to
active levels through 27/0600 UTC, then decreased to mostly quiet
levels for the balance of the period.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 148 SSN 185 Afr/Ap 008/010 X-ray Background B8.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.3e+04 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 5.60e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 4 2 1 1 1 2 1 Planetary 4 4 2 1 2 2 2 2
F. Comments
None
All times in UTC
Latest news
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Latest forum messages
Unspecified geomagnetic activity 2419Line chart of indicators on the auror video, animated graph trace 32Growth of Cycle 25 852Solar filters and telescopes 18AR 14079 157
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 | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/30 | M2.03 |
| Last geomagnetic storm | 2025/05/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 77.9 -62.7 |
| Last 30 days | 102.3 -35 |