Viewing archive of Thursday, 7 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 07 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 127 Issued at 0245Z on 07 MAY 1998 This report is compiled from data received at SWO on 06 MAYA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0000 0000 0000 0000 0000 0000 0025 0035 0041 8214 N26W20 SF 550 0453 0506 0517 C8.4 440 61 IV 0606 0615 0617 8210 S12W65 C2.8 SF 550 0710 0725 0741 8210 S11W65 M2.9 1N 830 0758 0809 0820 8210 S11W65 X2.7 1N 65000 490 IV 1433 1434 1434 430 1724 1724 1725 250
B. Proton Events
THE GT 100 MEV FLUX BEGAN RISING AT 06/0825Z AND
REACHED A MAXIMUM OF 2.9 PFU AT 06/0840Z. FLUXES DECAYED SLOWLY
DURING THE DAY AND WERE NEAR BACKGROUND AT THE END OF THE PERIOD.
THE GT 10 MEV FLUX BEGAN TO RISE AT THE SAME TIME AND REACHED A
MAXIMUM OF 210 PFU AT 06/0945Z AND THEN BEGAN TO SLOWLY DECAY.
FLUXES WERE NEAR 10 PFU AT THE END OF THE PERIOD.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET TO
SLIGHTLY UNSETTLED.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 130 SSN 111 AFR/AP 004/008 X-RAY BACKGROUND C1.8 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 7.5E+06 GT 10 MEV 2.4E+06 P/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 6.40E+08 E/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) 3 HOUR K-INDICES: BOULDER 2 2 0 1 2 1 1 2 PLANETARY 2 2 1 2 3 3 2 2
F. Comments
A STRONG 245 MHZ NOISE STORM (PEAK NEAR 660 SFU) WAS IN PROGRESS FOR MOST OF THE PERIOD. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT WERE HIGH.
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