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 UTC
Prepared 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 Dec
A. 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

<< Go to daily overview page

Latest news

Support 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!

No Ads on SWL Pro!
No Ads on SWL Pro! Subscriptions
Donations
Support SpaceWeatherLive.com! Donate
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2025/12/01X1.9
Last M-flare2025/12/04M6.0
Last geomagnetic storm2025/12/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025175.4 +83.6
Last 30 days107.3 +14.6

This day in history*

Solar flares
12006X9.4
22006M8.68
32006M5.04
42003M3
52000M2.34
DstG
11959-90
21960-90
31958-65
41957-57G1
52003-55G1
*since 1994

Social networks