[Finalsolar] Daily Summary of Solar Geophysical Activity for 21 April

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

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                 DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY

                                 21 APRIL, 2007

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                  (Based In-Part On SESC Observational Data)


SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 21 APRIL, 2007
---------------------------------------------------------

NOTE: The background x-ray flux was below class A1.0 levels.
!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 111, 04/21/07
10.7 FLUX=069.0  90-AVG=075        SSN=000      BKI=1201 2112  BAI=004
BGND-XRAY=A1.0     FLU1=*.*E+**  FLU10=*.*E+**  PKI=1100 0111  PAI=002
  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:070,070,070;SESC:070,070,070 BAI/PAI-FCST=010,008,005/015,008,005
    KFCST=**** **** **** ****  27DAY-AP=010,011   27DAY-KP=2124 4212 1121 2433
 WARNINGS=
   ALERTS=
!!END-DATA!!

NOTE: The Effective Sunspot Number for 20 APR 07 is not available.
      The Full Kp Indices for 21 APR 07 are: 1- 1- 0o 0o   0+ 1o 1- 1o 
      The 3-Hr Ap Indices for 21 APR 07 are:   3   3   0   0   2   4   3   4 
      Greater than 2 MeV Electron Fluence for 21 APR is: 8.5E+06
      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 solar disk
       remains spotless.

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

            The geomagnetic field was quiet.

            Geophysical activity forecast:  the geomagnetic field is
       expected to be quiet to unsettled with possible active periods at
       high latitudes on 22 april due to a recurrent coronal hole high
       speed stream.  Expect quiet to unsettled conditions on 23 - 24
       april.

            Event probabilities 22 apr-24 apr

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

            Geomagnetic activity probabilities 22 apr-24 apr

                        A.  Middle Latitudes
                        Active                25/20/15
                        Minor storm           10/10/05
                        Major-severe storm    01/01/01

                        B.  High Latitudes
                        Active                35/25/25
                        Minor storm           20/15/15
                        Major-severe storm    05/01/01


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

 Regions with Sunspots.  Locations Valid at 21/2400Z 
-----------------------------------------------------
Nmbr Location  Lo  Area  Z   LL   NN Mag Type
None
Regions Due to Return 22 Apr to 24 Apr
Nmbr Lat    Lo
None


LISTING OF SOLAR ENERGETIC EVENTS FOR 21 APRIL, 2007
----------------------------------------------------
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None


**  End of Daily Report  **