[Finalsolar] Daily Summary of Solar Geophysical Activity for 20 December

[Semi-finalized daily report of solar and geophysical activity.]

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                 DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY

                                20 DECEMBER, 2007

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                  (Based In-Part On SESC Observational Data)


SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 20 DECEMBER, 2007
------------------------------------------------------------

NOTE: The greater than 2 MeV electron fluence was moderate today.

The background x-ray flux was below class A1.0 levels.
!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 354, 12/20/07
10.7 FLUX=073.0  90-AVG=071        SSN=000      BKI=3422 2432  BAI=014
BGND-XRAY=A1.0     FLU1=*.*E+**  FLU10=*.*E+**  PKI=3322 2432  PAI=012
  BOU-DEV=***,***,***,***,***,***,***,***   DEV-AVG=*** NT     SWF=00:000
 XRAY-MAX= A1.0   @ 0000UT    XRAY-MIN= A1.0   @ 0000UT   XRAY-AVG= A1.0
NEUTN-MAX= +000%  @ 0000UT   NEUTN-MIN= +000%  @ 0000UT  NEUTN-AVG= +0.0%
  PCA-MAX= +0.0DB @ 0000UT     PCA-MIN= +0.0DB @ 0000UT    PCA-AVG= +0.0DB
BOUTF-MAX=00000NT @ 0000UT   BOUTF-MIN=00000NT @ 0000UT  BOUTF-AVG=00000NT
GOES9-MAX=N:+000NT@ 2359UT   GOES9-MIN=N:+000NT@ 2359UT  G9-AVG=+00,+00,+00
GOES8-MAX=N:+000NT@ 2359UT   GOES8-MIN=N:+000NT@ 2359UT  G8-AVG=+00,+00,+00
 FLUXFCST=STD:072,071,070;SESC:072,071,070 BAI/PAI-FCST=010,008,005/015,010,008
    KFCST=**** **** **** ****  27DAY-AP=010,012   27DAY-KP=3332 2211 3232 2432
 WARNINGS=
   ALERTS=
!!END-DATA!!

NOTE: The Effective Sunspot Number for 19 DEC 07 is not available.
      The Full Kp Indices for 20 DEC 07 are: 3- 3+ 2- 2-   2- 4o 3- 2+ 
      The 3-Hr Ap Indices for 20 DEC 07 are:  12  18   6   6   6  27  12   9 
      Greater than 2 MeV Electron Fluence for 20 DEC is: 3.9E+08
      DRAO 10.7 cm Solar Flux at 18Z, 20Z, 22Z: N/A, N/A, N/A sfu.


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

             Solar activity was very low.  The visible disk remains
       spotless.

            Solar activity forecast:  solar activity is expected to be very
       low.

            The geomagnetic field ranged from quiet to active levels due to a
       coronal hole high speed stream.  The solar wind velocity observed at
       ace reached a maximum of around 745 km/s at 20/1733Z.  As of
       forecast issue time, the solar wind remains elevated with values
       around 670-700 km/s.  The greater than 2 mev electron flux remained
       at high levels today.

            Geophysical activity forecast:  the geomagnetic field is
       expected to be predominantly quiet to unsettled for the next three
       days (21-23 december).  Active conditions are possible on 21
       december, with isolated minor storm period possible at high
       latitudes, due to the continued influence of the high speed stream.

            Event probabilities 21 dec-23 dec

                             Class M    01/01/01
                             Class X    01/01/01
                             Proton     01/01/01
                             PCAF       Green

            Geomagnetic activity probabilities 21 dec-23 dec

                        A.  Middle Latitudes
                        Active                30/25/15
                        Minor storm           10/05/01
                        Major-severe storm    01/01/01

                        B.  High Latitudes
                        Active                35/30/20
                        Minor storm           15/10/05
                        Major-severe storm    05/05/05


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

 Regions with Sunspots.  Locations Valid at 20/2400Z 
-----------------------------------------------------
Nmbr Location  Lo  Area  Z   LL   NN Mag Type
None
Regions Due to Return 21 Dec to 23 Dec
Nmbr Lat    Lo
None


LISTING OF SOLAR ENERGETIC EVENTS FOR 20 DECEMBER, 2007
-------------------------------------------------------
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None


**  End of Daily Report  **