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91-11-14.DLY
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1991-11-14
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/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
14 NOVEMBER, 1991
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
(Based In-Part On SESC Observational Data)
SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 14 NOVEMBER
------------------------------------------------------
!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 318, 11/14/91
10.7 FLUX=183.5 90-AVG=200 SSN=151 BKI=4332 4323 BAI=016
BGND-XRAY=B8.3 FLU1=1.8E+05 FLU10=7.5E+03 PKI=3343 4223 PAI=017
BOU-DEV=044,032,028,***,***,031,014,028 DEV-AVG=030 NT SWF=00:000
XRAY-MAX= C2.4 @ 0213UT XRAY-MIN= B6.7 @ 0754UT XRAY-AVG= B9.7
NEUTN-MAX= +002% @ 2315UT NEUTN-MIN= -003% @ 0935UT NEUTN-AVG= -0.2%
PCA-MAX= +0.3DB @ 2315UT PCA-MIN= -1.7DB @ 2035UT PCA-AVG= +0.0DB
BOUTF-MAX=55311NT @ 0438UT BOUTF-MIN=55288NT @ 1941UT BOUTF-AVG=55301NT
GOES7-MAX=P:+124NT@ 1942UT GOES7-MIN=N:-021NT@ 0753UT G7-AVG=+056,+036,+005
GOES6-MAX=P:+137NT@ 2143UT GOES6-MIN=E:-106NT@ 0657UT G6-AVG=+082,-024,+004
FLUXFCST=STD:185,190,200;SESC:185,188,195 BAI/PAI-FCST=015,015,015/015,015,015
KFCST=2443 3334 2443 4333 27DAY-AP=009,020 27DAY-KP=1222 2233 3444 3332
WARNINGS=
ALERTS=**245STRM:0000-2400
!!END-DATA!!
BRIEF SUMMARY OF EVENTS
-----------------------
Solar activity was low today. Region 6919 (S12W01) continued to produce
occassional minor C-class subflares, but has not generated anything more
substantial. Subflares were also observed in Region 6915 (N20W47) and 6908
(N21W57).
No new regions were assigned.
Solar activity should continue low with a possibility for an isolated
M-class event over the next 48 hours. More energetic activity may
materialize thereafter (by 17 or 18 November) as old Region 6891 returns back
into view around the east limb. Old Region 6891 left the west limb two weeks
ago in a complex, but quiet configuration. It appeared to be in a state of
decay. It is expected to return, although it is unknown whether it will
return in a simple decayed state or in a continued large complex spot group.
Relying on the history of the group prior to its departure from the west limb
two weeks ago, there is a good possibility this region will return in a
significantly simpler and less volatile configuration.
The geomagnetic field was mostly quiet to unsettled today, with some
brief active periods intermixed. Nothing significant was observed.
Conditions should continue mostly unsettled over the next 72 hours.
HF propagation conditions were normal over most regions. Conditions are
expected to continue near normal over the next 72 hours. There will be an
increased risk for periods of daytime SWFs after 17 November as old Region
6891 (which was a potent flare producer on its last rotation) returns to the
east limb. It may still be capable of generating M-class flares.
** End of Daily Update **