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 19:24:01 GMT

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                 DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY

                               29 AUGUST, 1992

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                  (Based In-Part On SESC Observational Data)


SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 29 AUGUST
----------------------------------------------------

!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 242, 08/29/92
10.7 FLUX=095.3  90-AVG=124        SSN=063      BKI=4534 1112  BAI=016
BGND-XRAY=B1.8     FLU1=1.2E+05  FLU10=1.5E+04  PKI=4534 2222  PAI=015
  BOU-DEV=044,098,025,051,008,006,005,010   DEV-AVG=030 NT     SWF=00:000
 XRAY-MAX= C1.5   @ 0001UT    XRAY-MIN= B1.7   @ 1703UT   XRAY-AVG= B4.9
NEUTN-MAX= +004%  @ 2020UT   NEUTN-MIN= -001%  @ 0955UT  NEUTN-AVG= +0.7%
  PCA-MAX= +0.2DB @ 1515UT     PCA-MIN= -0.1DB @ 2110UT    PCA-AVG= +0.0DB
BOUTF-MAX=55453NT @ 0340UT   BOUTF-MIN=55392NT @ 1715UT  BOUTF-AVG=55430NT
GOES7-MAX=P:+102NT@ 2012UT   GOES7-MIN=N:-032NT@ 1019UT  G7-AVG=+070,+050,+007
GOES6-MAX=P:+116NT@ 0006UT   GOES6-MIN=E:-016NT@ 1432UT  G6-AVG=+078,-004,+033
 FLUXFCST=STD:100,105,105;SESC:100,105,110 BAI/PAI-FCST=010,015,015/010,015,010
    KFCST=2224 4222 2225 5222  27DAY-AP=006,005   27DAY-KP=2202 1222 1111 2222
 WARNINGS=
   ALERTS=
!!END-DATA!!


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

     Solar activity was low.  Very few flares were observed from the inactive
spot groups visible.  The reported maximum x-ray flux value of C1.5 was
observed during the decay phase of the long-duration C-class flare reported
yesterday.

     New regions numbered include Regions 7269 (S18W42) and 7270 (S09E65).
Region 7270 is located just to the west of old Region 7248 and appears to be
a fairly insignificant spot group.

     Solar activity is expected to be very low to low.  X-ray imagery
suggests additional spots may rotate into view near old Region 7248 over the
next 24 hours.  It does not appear as though anything significant is on the
way, however.

     The geomagnetic field was mostly quiet to unsettled, although minor
storming was observed between 01:00 UT and 18:00 UT.  The source of this
activity is not known at the present time. The geomagnetic field is expected
to be quiet to unsettled over the next 72 hours.

     HF propagation conditions were near-normal to slightly below normal.
Degraded propagation conditions were observed during the periods of minor
geomagnetic storming, particularly over the high and polar latitude signal
paths.  Conditions improved after 18:00 UT and were near-normal for most
regions by the end of the UT day.  Propagation is expected to continue
near-normal over the next 72 hours.


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

REGIONS WITH SUNSPOTS (LOCATIONS VALID AT 29/2400Z)
---------------------------------------------------
NMBR LOCATION  LO  AREA  Z   LL   NN MAG TYPE
7267  N02W17  117  0050 CSO  09  013 BETA
7268  N05W78  178  0050 CAO  08  005 BETA
7269  S18W42  142  0010 BXO  02  002 BETA
7270  S09E65  035  0050 CRO  05  003 BETA
7265  S19W67  167                    PLAGE
7266  N12W39  139                    PLAGE
REGIONS DUE TO RETURN 30 AUGUST TO 01 SEPTEMBER
NONE


LISTING OF SOLAR ENERGETIC EVENTS FOR 29 AUGUST
-----------------------------------------------
BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP SWF
NO EVENTS OBSERVED


POSSIBLE CORONAL MASS EJECTION EVENTS FOR 29 AUGUST
---------------------------------------------------
           UT TIME                 OPTICAL          XRAY    RADIO
 BEGIN        MAX      END     LOCATION   TYPE   SIZE  DUR  II IV
28/2211     29/0018  29/0444               LDE   C1.5  393


INFERRED CORONAL HOLES (LOCATIONS VALID AT 29/2400Z)
----------------------------------------------------
               ISOLATED HOLES AND POLAR EXTENSIONS
      EAST   SOUTH  WEST   NORTH  CAR  TYPE  POL  AREA   OBSN
                 NO DATA AVAILABLE FOR ANALYSIS


**  End of Daily Report  **
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