From: oler@rho.uleth.ca (Cary Oler)
Subject: Daily Summary of Solar Geophysical Activity for 14 September
Apparently-To: sci-space-news@ames.arc.nasa.gov
Followup-To: sci.space
Organization: University of Lethbridge
Date: Tue, 15 Sep 1992 07:32:14 GMT

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                 DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY

                              14 SEPTEMBER, 1992

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                  (Based In-Part On SESC Observational Data)


SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 14 SEPTEMBER
-------------------------------------------------------

!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 258, 09/14/92
10.7 FLUX=121.7  90-AVG=124        SSN=086      BKI=1322 2222  BAI=007
BGND-XRAY=B3.5     FLU1=8.3E+05  FLU10=1.4E+04  PKI=2323 2232  PAI=009
  BOU-DEV=009,027,014,013,010,017,011,010   DEV-AVG=013 NT     SWF=00:000
 XRAY-MAX= C2.8   @ 1648UT    XRAY-MIN= B3.2   @ 2255UT   XRAY-AVG= B5.7
NEUTN-MAX= +003%  @ 2015UT   NEUTN-MIN= -001%  @ 2135UT  NEUTN-AVG= +0.5%
  PCA-MAX= +0.2DB @ 1130UT     PCA-MIN= +0.0DB @ 2355UT    PCA-AVG= +0.1DB
BOUTF-MAX=55444NT @ 1232UT   BOUTF-MIN=55405NT @ 1931UT  BOUTF-AVG=55429NT
GOES7-MAX=P:+141NT@ 2021UT   GOES7-MIN=N:-014NT@ 0956UT  G7-AVG=+086,+041,+011
GOES6-MAX=P:+149NT@ 2022UT   GOES6-MIN=E:-009NT@ 1639UT  G6-AVG=+096,+001,+032
 FLUXFCST=STD:118,112,107;SESC:115,110,105 BAI/PAI-FCST=005,010,010/010,010,010
    KFCST=1233 4111 1234 4221  27DAY-AP=006,006   27DAY-KP=2112 2222 1121 2223
 WARNINGS=
   ALERTS=
!!END-DATA!!


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

     Solar activity continued low.  Region 7281 (N12W74) surpassed all other
regions in flare output.  Numerous small B and C-class subflares were
observed from this growing spot group.  It is presently a fairly simple
beta-type spot group of only 60 millionths, but has increased slightly in
magnetic complexity.

     Region 7276 (N15W13) decayed substantially today and remained relatively
dormant.  The magnetic delta configuration was lost.  C-class flares are
still possible from this group.

     Region 7282 (S18W45) stabilized in growth and remains a fairly simple
DAO type spot group of 120 millionths.  Isolated subflare activity is
possible in this region.

     No other activity of interest was reported.  No new regions were
assigned either.

     Solar activity should continue mostly low.  C-class activity is expected
from Regions 7281 and 7276.  Region 7282 may also contribute a small isolated
C-class flare over the next 72 hours.  The probability for M-class flare
activity has diminished given the decay that has occurred in Region 7276.

     The geomagnetic field was quiet today and should continue mostly quiet
to occasionally mildly unsettled over the next 72 hours.

     HF propagation conditions were near-normal over all regions.  No
significant changes are expected over the next 72 hours.


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

REGIONS WITH SUNSPOTS (LOCATIONS VALID AT 14/2400Z)
---------------------------------------------------
NMBR LOCATION  LO  AREA  Z   LL   NN MAG TYPE
7276  N15W13  261  0110 DAI  10  026 BETA-GAMMA
7280  S13E29  219  0080 CSO  08  003 BETA
7281  N12W74  322  0060 CSO  07  006 BETA
7282  S18W45  293  0120 DAO  08  011 BETA
7277  S11W50  299                    PLAGE
7278  N11W57  305                    PLAGE
7279  S02W04  252                    PLAGE
REGIONS DUE TO RETURN 15 SEPTEMBER TO 17 SEPTEMBER
NMBR LAT    LO
7267 N02   119


LISTING OF SOLAR ENERGETIC EVENTS FOR 14 SEPTEMBER
--------------------------------------------------
BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP SWF
 0719 0721 0802 7281  N08W68       SF    140
 1142 1142 1206 7281  N13W70       SF    140
 1446 1446 1446                          200


POSSIBLE CORONAL MASS EJECTION EVENTS FOR 14 SEPTEMBER
------------------------------------------------------
           UT TIME                 OPTICAL          XRAY    RADIO
 BEGIN        MAX      END     LOCATION   TYPE   SIZE  DUR  II IV
NO EVENTS OBSERVED


INFERRED CORONAL HOLES (LOCATIONS VALID AT 14/2400Z)
----------------------------------------------------
               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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