Viewing archive of Wednesday, 28 March 2001
Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
Solar wind
Interplanetary Magnetic Field (IMF)
Courtesy of NASA and the ACE Science Center (SWEPAM, MAG instruments teams) and/or NASA/NOAA DSCOVR (PlasMag instrument team)
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
AR4366 737X8 CME 1750 mhz F2 81Space Weather Memes 784Do the high-resolution sunspot counts point to more complex sunspots? 48
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Space weather facts
| Last X-flare | 2026/02/03 | X1.5 |
| Last M-flare | 2026/02/03 | 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 |
| February 2026 | 133 +9 |
| Last 30 days | 120.6 +10.9 |