Viewing archive of Sunday, 19 May 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 May 19 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 139 Issued at 0245Z on 19 May 2002 This report is compiled from data received at SWO on 18 May
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to minor storm conditions. A shock passed the ACE spacecraft at 18/1919 UTC and created a sudden impulse of 31 nT on the Boulder magnetometer at 18/2007 UTC. Solar wind velocity increased from 381 km/s to 450 km/s. This shock is believed related to the full halo CME on 16 May.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 163  SSN 140  Afr/Ap 010/015   X-ray Background B7.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.2e+06   GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.50e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 1 1 1 2 3 4 5 Planetary 2 1 1 2 3 3 5 5
F. Comments
  None

<< 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%

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/07/10Kp5 (G1)
Number of spotless days in 2019:129
Current stretch spotless days:11

This day in history*

Solar flares
12002X1.8
22000M3.3
32000M3.0
42002M2.2
52004M2.0
ApG
1200524G1
2201317G1
3200315G1
4200012
5199510
*since 1994

Social networks