Viewing archive of Thursday, 4 April 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Apr 04 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 094 Issued at 0245Z on 04 Apr 2002 This report is compiled from data received at SWO on 03 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0315 0315 0315                       160
0721 0723 0729                       330
1129 1133 1138  9888 S11E10 C1.3  Sf 360
1402 1402 1403                       130
1406 1406 1406                       150
1418 1424 1429              C2.8     330    21
1742 1743 1744                       850
2024 2025 2025                       160
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to active. A single active period was observed during 03/0300-0600 UTC, as coronal hole effects diminished, and quiet to unsettled conditions predominated thereafter. The greater than 2 MeV electron flux at geosynchronous orbit showed moderate enhancement today, but remained below event threshold.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 209  SSN 162  Afr/Ap 012/013   X-ray Background B8.1
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.6e+05   GT 10 MeV 1.1e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.80e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 4 2 3 3 2 2 2 Planetary 3 4 3 3 3 3 3 3
F. Comments
  Afr estimated from Boulder A.

<< Go to daily overview page

Latest news

Support 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!

100%

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2019:267
Current stretch spotless days:40

This day in history*

Solar flares
12001M5.6
22001M4.8
32001M3.0
42000M1.3
52001C9.3
ApG
1200428G1
2200627G1
3200325G1
4201418
5199415
*since 1994

Social networks