Night time solar radio burst emission
Taken by Dave Typinski on February 23, 2023 @
High Springs, Florida
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
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Date Taken: Unavailable
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Details:
Here's a rare night time observation of a solar burst via antipodal focusing. In this mode, the emission enters the on the opposite side of the planet, some portion getting trapped between the ionosphere and the surface whereupon propagation converges from all azimuths to the antipodal point (the point diametrically opposite) on the planet.
Sunset was at 2325 UTC and next sunrise was at 1132 UTC. The Sun reached lower culmination at 0543 UTC (AZ 0°, EL -70°), a half hour before the burst was observed.
At 0613 UTC, the Sun was 69° below the horizon at an azimuth of 21°. Not precisely antipodal to AJ4CO Observatory in north central Florida, but apparently close enough.
The SWPC logged a major Type V (continuum emission) event at the time, observed by the Learmonth, Australia facility:
# Edited Events for 2023 Feb 23
#
#Event Begin Max End Obs Q Type Loc/Frq Particulars Reg#
#-------------------------------------------------------------------------------
2630 + 0612 //// 0617 LEA C RSP 025-180 V/3
--
Dave
Photographer's website:
https://aj4co.org
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