Viewing archive of Friday, 1 May 1998

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 1998 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 1998 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
0444 0444 0444                       170
1001 0000 2319                                        IV
1335 1338 1341              B3.1     110
1721 0000 0000                                        IV
1911 1912 1914                       630
2115 2125 2136  8210 S21E03 C6.6  2N
2121 2121 2122                              140
2144 2205 2302  8214 N24E49       SF 170
2259 2259 2259                       1200
2333 2333 2333                       110
B. Proton Events
A WEAK ENERGETIC PROTON (GT 10 MEV) ENHANCEMENT BEGAN AT 30/0405Z. MAXIMUM FLUX WAS 2 PFU. THIS ENHANCEMENT IS ATTRIBUTED TO THE M6/HALO CME OBSERVED ON 29 APR.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET UNTIL A 31NT SUDDEN IMPULSE WAS OBSERVED AT 30/0933Z. THIS WAS PRECEDED BY A SHOCK PASSAGE AT THE ACE SPACECRAFT AT 30/0845Z. AFTER THE SUDDEN IMPULSE, UNSETTLED TO ACTIVE CONDITIONS WERE OBSERVED. THIS DISTURBANCE IS BELIEVED TO BE RELATED TO THE X1/HALO CME OBSERVED ON 27 APR. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT WERE PREDOMINANTLY HIGH.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 103  SSN 074  AFR/AP 011/012   X-RAY BACKGROUND B3.3
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 2.1E+07   GT 10 MEV 9.1E+04 P/(CM2-STER-DAY)
GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 2.70E+08 E/(CM2-STER-DAY)
GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES)
3 HOUR K-INDICES:
BOULDER 2 1 1 3 4 3 2 3 PLANETARY 2 1 1 3 4 4 3 3
F. Comments
  None


All times in UTC

<< 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%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/13M1.7
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024166 -0.4
Last 30 days164 +16.8

This day in history*

Solar flares
12014M5.41
22014M4.73
31999M4.16
42002M3.49
52011M2.81
DstG
11960-142G4
21984-97G3
31981-69G1
41977-60G2
51978-57
*since 1994

Social networks