Viewing archive of Tuesday, 18 July 2000

Geophysical report

Solar and Geophysical Activity Summary 2000 Jul 18 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 200 Issued at 0245Z on 18 JUL 2000 This report is compiled from data received at SWO on 17 JUL
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0020 0020 0021                       140
0031 0034 0038  9088 N19E03 C8.1  SF 350
0032 0033 0048  9087 S12E46       SN 420    31
1111 1112 1112                       660
1335 1345 1348  9087 S08E31 M1.2  1F 2800   14
1438 1439 1444  9087 S08E33       SF 130
1806 1806 1830  9077 N19W47       1F 210
2014 2027 2032  9087 S11E36 M2.4  1N 7100   280    II
2337 0004 0015  9077 N17W38 M1.4  2F
B. Proton Events
THE GREATER THAN 10 MEV PROTON FLUX BEGAN THE PERIOD AT APPROXIMATELY 180 PFU AND BY ISSUE TIME WERE NEAR 50 PFU. THE POLAR CAP ABSORPTION EVENT ENDED AT 17/1943Z. THE FORBUSH DECREASE REMAINED IN PROGRESS.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. SOLAR WIND VELOCITY DECLINED DURING THE PERIOD FROM APPROXIMATELY 750 TO 600 KM/S.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 228  SSN 335  AFR/AP 008/009   X-RAY BACKGROUND C2.3
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 4.5E+07   GT 10 MEV 8.0E+06 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 1.70E+06 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 2 3 2 3 2 1 2 2 PLANETARY 3 3 2 3 2 2 2 2
F. Comments
  None

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