From: oler@rho.uleth.ca (Cary Oler)
Newsgroups: sci.space.news
Subject: Daily Summary of Solar Geophysical Activity for 03 October
Date: 5 Oct 92 23:49:47 GMT
Followup-To: sci.space
Organization: University of Lethbridge
Apparently-To: sci-space-news@ames.arc.nasa.gov


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                 DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY

                               03 OCTOBER, 1992

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                  (Based In-Part On SESC Observational Data)


SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 03 OCTOBER
-----------------------------------------------------

!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 277, 10/03/92
10.7 FLUX=120.1  90-AVG=123        SSN=154      BKI=1222 1121  BAI=005
BGND-XRAY=B2.3     FLU1=2.6E+05  FLU10=1.3E+04  PKI=1222 2332  PAI=008
  BOU-DEV=005,013,019,013,008,008,015,008   DEV-AVG=011 NT     SWF=00:000
 XRAY-MAX= C1.9   @ 2005UT    XRAY-MIN= B2.1   @ 0925UT   XRAY-AVG= B3.2
NEUTN-MAX= +004%  @ 1925UT   NEUTN-MIN= -002%  @ 0525UT  NEUTN-AVG= +0.3%
  PCA-MAX= -2.9DB @ 0525UT     PCA-MIN= -3.4DB @ 1940UT    PCA-AVG= -3.1DB
BOUTF-MAX=55427NT @ 2328UT   BOUTF-MIN=55394NT @ 1740UT  BOUTF-AVG=55418NT
GOES7-MAX=P:+084NT@ 1950UT   GOES7-MIN=N:-012NT@ 1112UT  G7-AVG=+070,+042,+006
GOES6-MAX=P:+094NT@ 0743UT   GOES6-MIN=E:-016NT@ 1648UT  G6-AVG=+080,-004,+030
 FLUXFCST=STD:125,130,135;SESC:125,130,135 BAI/PAI-FCST=010,010,010/010,010,010
    KFCST=2332 2223 2332 2223  27DAY-AP=017,017   27DAY-KP=3442 3233 3442 3233
 WARNINGS=*SWF
   ALERTS=
!!END-DATA!!


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

     Solar activity was low today.  Region 7301 (S16E25) was the most
energetic region visible.  It was responsible for the largest flare of the
period, a class C1.9/SF event at 20:05 UT.  Several other C-class flares were
also observed from this region.  The region was fairly stable in terms of
growth, but appears to be capable of producing minor M-class flare activity.

     Region 7293 (S07W70) remained fairly quiet today.  Its largest flare was
a class B8/SF flare at 18:46 UT.  It is capable of producing C-class flares.
There is also a slight chance for an M-class event from this region.

     Region 7300 (N13E47) was split into two separate regions, 7300 and 7305.
Region 7300 is now a CSO type group and is in the lead of trailing Region
7305 (N12E55) which is a DAO type group.

     Aside from Region 7305, the only new region to be numbered is Region
7304 (N05E07).

     Solar activity is expected to be low to moderate.  M-class flare
activity is possible in Region 7301.  Region 7305 also has a chance for
producing C-class and possibly more energetic minor M-class flare activity.

     The geomagnetic field was quiet today and is expected to continue quiet
to unsettled for the next 72 hours (through 06 October inclusive).

     HF propagation conditions returned to near-normal over the high and
polar latitudes.  Minor signal degradation continued to be observed over some
localized regions due to minor substorm activity.  MUF depressions of up to
approximately 15 to 25 percent may have been observed.  Expect near-normal
propagation for the next 72 hours.


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

REGIONS WITH SUNSPOTS (LOCATIONS VALID AT 03/2400Z)
---------------------------------------------------
NMBR LOCATION  LO  AREA  Z   LL   NN MAG TYPE
7293  S07W70  068  0060 HAX  02  003 ALPHA
7294  S10W48  046  0250 HHX  03  001 ALPHA
7295  N14W27  025  0090 HSX  02  003 ALPHA
7296  N07W24  022  0010 BXO  04  005 BETA
7298  N16E09  349  0080 DAO  07  009 BETA
7300  N13E47  311  0040 CSO  06  005 BETA
7301  S16E25  333  0060 CAI  06  014 BETA
7303  S12E32  326  0000 AXX  00  001 ALPHA
7304  N05E07  351  0010 BXO  03  004 BETA
7305  N12E55  303  0100 DAO  07  009 BETA
7292  N20W69  067                    PLAGE
7299  N13E26  332                    PLAGE
7302  S12W05  003                    PLAGE
REGIONS DUE TO RETURN 04 OCTOBER TO 06 OCTOBER
NMBR LAT    LO
7276 N16   261


LISTING OF SOLAR ENERGETIC EVENTS FOR 03 OCTOBER
------------------------------------------------
BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP SWF
NO EVENTS OBSERVED


POSSIBLE CORONAL MASS EJECTION EVENTS FOR 03 OCTOBER
----------------------------------------------------
           UT TIME                 OPTICAL          XRAY    RADIO
 BEGIN        MAX      END     LOCATION   TYPE   SIZE  DUR  II IV
03/ 0435     0521     0555                LDE    B4.3   80


INFERRED CORONAL HOLES (LOCATIONS VALID AT 03/2400Z)
----------------------------------------------------
               ISOLATED HOLES AND POLAR EXTENSIONS
      EAST   SOUTH  WEST   NORTH  CAR  TYPE  POL  AREA   OBSN
56   S18W64 S20W64 S09W84 S09W84  100  ISO   POS   003 10830A
58   S17W45 S19W49 S17W53 S15W49  016  ISO   POS   000 10830A
59   S06E47 S08E44 N00E38 N13E39  322  ISO   POS   006 10830A


**  End of Daily Report  **