Geophysical report

Viewing archive of Sunday, 18 April 2021

Solar and Geophysical Activity Summary 2021 Apr 18 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 108 Issued at 0245Z on 18 Apr 2021 This report is compiled from data received at SWO on 17 Apr

A. Energetic Events

Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 1626      1635                                     II              
 1658 1700 1702                       180

B. Proton Events

None

C. Geomagnetic Activity Summary

Field activity was at unsettled to G1 (Minor) storm levels due to negative polarity, CH HSS influence.

D. Stratwarm

Not available

E. Daily Indices: (real-time preliminary/estimated values)

10 cm 075  SSN 028  Afr/Ap 020/024   X-ray Background A4.4
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.5e+05   GT 10 MeV 4.2e+04 p/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.00e+07 e/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 4 4 5 3 4 4 3 3 Planetary 4 4 5 4 3 3 3 4

F. Comments

  None

All times in UTC

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Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Gillam, MB

The solar wind speed is currently high (743.9 km/sec.)

The strength of the interplanetary magnetic field is moderate (11.12nT), the direction is slightly South (-2.4nT).

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