Viewing archive of Thursday, 1 May 2003

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 2003 May 01 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 121 Issued at 0245Z on 01 May 2003 This report is compiled from data received at SWO on 30 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
1251 1252 1259  0340 S12W52       Sf 210
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at unsettled to major storm levels. Most of the activity was at active to minor storm levels. Periods of southward Bz early in the day resulted in an isolated period of major storm levels. Solar wind speed gradually increased throughout the day to near 650 km/s.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 154  SSN 160  Afr/Ap 037/040   X-ray Background B4.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.8e+06   GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-10 satellite synchronous orbit W135 degrees)
Daily Electron Fluence
GT 2 MeV 7.60e+07 e/(cm2-ster-day)
(GOES-10 satellite synchronous orbit W135 degrees)
3 Hour K-indices
Boulder 5 6 5 4 3 4 4 4 Planetary 5 6 5 5 4 4 4 5
F. Comments
  None

All times in UTC

<< Go to daily overview page

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!

98%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/06/10X1.55
Last M-flare2024/07/11M1.21
Last geomagnetic storm2024/06/28Kp8- (G4)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
June 2024164.2 -7.5
July 2024150.2 -14
Last 30 days151.2 -3.1

This day in history*

Solar flares
12000X2.81
22012X2.03
32000M8.2
42023M6.97
52000M2.81
DstG
12003-105G3
22005-78G2
31985-65G3
41982-64G3
51991-51G2
*since 1994

Social networks