Viewing archive of Tuesday, 1 January 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 Jan 01 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 001 Issued at 0245Z on 01 Jan 2002 This report is compiled from data received at SWO on 31 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1632 1633 1633 100 1655 1655 1655 110
B. Proton Events
The greater than 10 MeV proton event that began
on 30/0245 UTC remains in progress and reached a maximum of 108 pfu
at 31/1620 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
to unsettled levels. An isolated active condition existed at
planetary, at 31/2400 UTC.
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM MONDAY
WARM AIR COVERS MOST OF THE POLAR REGION IN THE UPPER AND MIDDLE
STRATOSPHERE. THE TEMPERATURE GRADIENT ARE REVERSED DOWN TO 30 HPA,
ANDTHERE ARE MEAN ZONAL EASTERLY WINDS AT 10HPA AND ABOVE AT 60N.
MAJOR WARMING CRITERIA FULFILLED.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 246 SSN 209 Afr/Ap 013/011 X-ray Background C2.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.5e+07 GT 10 MeV 5.9e+06 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 4 3 1 2 2 3 3 3 Planetary 3 3 2 2 2 3 3 4
F. Comments
Afr based on Boulder magnetometer.
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
TórshavnOulu, Rovaniemi, Sodankylä
Kirkenes, Tromsø, Trondheim
Arkhangelsk, Murmansk
Kiruna, Luleå, Sundsvall, Umeå
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
AR 4055 5Ask your obscure/"stupid" space weather questions. 348Sunspot Latitudes at or near Solar Maximum 86AR4048 128Incoming & Unnumbered Active Regions 1678
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!
Latest alerts
08:12 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 76GW at 08:57 UTC
02:00 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 01:45 UTC
Tuesday, 8 April 2025
23:57 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 00:44 UTC
22:42 UTC - Solar flare
Moderate M1.57 flare
22:24 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.52)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/08 | M1.5 |
| Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 148.6 +14.4 |
| Last 30 days | 137.1 -0.2 |