From: oler@rho.uleth.ca (Cary Oler)
Subject: Daily Summary of Solar Geophysical Activity for 30 August
Apparently-To: sci-space-news@ames.arc.nasa.gov
Followup-To: sci.space
Organization: University of Lethbridge
Date: Mon, 31 Aug 1992 20:06:42 GMT

                /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

                 DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY

                               30 AUGUST, 1992

                /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

                  (Based In-Part On SESC Observational Data)


SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 30 AUGUST
----------------------------------------------------

!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 243, 08/30/92
10.7 FLUX=094.8  90-AVG=124        SSN=045      BKI=1022 3211  BAI=005
BGND-XRAY=B1.3     FLU1=6.4E+05  FLU10=1.5E+04  PKI=1122 3221  PAI=007
  BOU-DEV=009,004,019,019,035,012,005,008   DEV-AVG=013 NT     SWF=00:000
 XRAY-MAX= C1.3   @ 0835UT    XRAY-MIN= B1.1   @ 2358UT   XRAY-AVG= B1.9
NEUTN-MAX= +003%  @ 2220UT   NEUTN-MIN= -001%  @ 1700UT  NEUTN-AVG= +0.9%
  PCA-MAX= +0.1DB @ 2220UT     PCA-MIN= -0.1DB @ 2100UT    PCA-AVG= +0.0DB
BOUTF-MAX=55443NT @ 2333UT   BOUTF-MIN=55391NT @ 1740UT  BOUTF-AVG=55430NT
GOES7-MAX=P:+121NT@ 2003UT   GOES7-MIN=N:-006NT@ 0815UT  G7-AVG=+085,+038,+010
GOES6-MAX=P:+128NT@ 2026UT   GOES6-MIN=E:-018NT@ 1636UT  G6-AVG=+096,-009,+030
 FLUXFCST=STD:100,105,110;SESC:100,105,110 BAI/PAI-FCST=015,015,010/010,010,010
    KFCST=3335 5222 3334 4223  27DAY-AP=005,013   27DAY-KP=1111 2222 3112 3443
 WARNINGS=
   ALERTS=
!!END-DATA!!


SYNOPSIS OF ACTIVITY
--------------------

     Solar activity was low.  Region 7270 (S09E52) produced the largest flare
of the day; a class C2/SF event at 07:08 UT.  This region was responsible for
all of the observed flares.

     Region 7270 is a small, simple C-type spot group only 50 millionths in
area.  It is expected to produce mostly small B-class events and occasional
weak C-class flares.

     No new regions were assigned today.

     Solar activity should continue very low to low.  C-class flares are
possible from Region 7270.

     The geomagnetic field was generally quiet.  High latitudes reported
periods of active to minor storm activity between 09:00 UT and 15:00 UT.
Middle latitudes were mostly unsettled during this same interval.  The field
is expected to be mostly quiet to unsettled over the next 72 hours.

     HF propagation conditions were near-normal over most regions.  MUFs
were depressed by as much as 20 to 30 percent over some regions.  Low and
middle latitudes had generally good propagation, while high and polar
latitudes experienced mostly fair to occassionally poor conditions during
periods of geomagnetic substorm activity.  No significant changes are
expected over the next 72 hours.  Overall, HF propagation should continue
good.


COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
========================================================

REGIONS WITH SUNSPOTS (LOCATIONS VALID AT 30/2400Z)
---------------------------------------------------
NMBR LOCATION  LO  AREA  Z   LL   NN MAG TYPE
7267  N02W31  117  0020 BXO  05  009 BETA
7268  N06W93  179  0000 AXX  00  001 ALPHA
7270  S09E52  034  0050 CRO  05  005 BETA
7269  S18W55  141                    PLAGE
REGIONS DUE TO RETURN 31 AUGUST TO 02 SEPTEMBER
NMBR LAT    LO
NONE


LISTING OF SOLAR ENERGETIC EVENTS FOR 30 AUGUST
-----------------------------------------------
BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP SWF
NO EVENTS OBSERVED


POSSIBLE CORONAL MASS EJECTION EVENTS FOR 30 AUGUST
---------------------------------------------------
           UT TIME                 OPTICAL          XRAY    RADIO
 BEGIN        MAX      END     LOCATION   TYPE   SIZE  DUR  II IV
30/B0253             A1714       N31E26   DSF


INFERRED CORONAL HOLES (LOCATIONS VALID AT 30/2400Z)
----------------------------------------------------
               ISOLATED HOLES AND POLAR EXTENSIONS
      EAST   SOUTH  WEST   NORTH  CAR  TYPE  POL  AREA   OBSN
                 NO DATA AVAILABLE FOR ANALYSIS


**  End of Daily Report  **
Newsgroups: sci.space.news