See http://sec.noaa.gov/Data/ for tables of all online data 
  at SEC, including links to non-SEC sources for older data.

=========================================================================
May 16, 2003

        Solar and Geophysical Activity Summary (SGAS) reports

  The daily Solar and Geophysical Activity Summary is a brief list of 
  solar and geophysical events and indices for the previous UTC day, 
  including energetic solar flares, proton events, geomagnetic activity, 
  and stratospheric warming alerts.

   Retention:      List 75 daily reports
   Issue time:     Daily at 0245 UTC, usually online at 0250 UTC.
   Period covered: Previous UTC day.

------------------------------------------------------------------------
         
May 15, GOES-8 became the primary satellite for protons. GOES 12 is the 
primary satellite for magnetometer, X-ray, and electron measurements. 
GOES 10 is the secondary satellite for all SEM sensors - magnetometer, X-ray
sensor, and energetic particle sensor. This short-term solution
(approximately 2 - 3 months) will be in place until we define and
implement a permanent fix. 
            
See details at http://sec.noaa.gov/GOES.html
------------------------------------------------------------------------
         
April 8, SEC stopped using GOES 8 data. GOES 10 is SEC's primary GOES 
satellite and is used for Energetic Events, Proton Events, X-ray 
Background, and Daily Proton Fluence data in this product.

------------------------------------------------------------------------

Send questions and comments to Viola.J.Raben@noaa.gov

==========================================================
Sample:

:Product: 0516SGAS.txt
:Issued: 2003 May 16 0250 UT
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 136 Issued at 0245Z on 16 May 2003
This report is compiled from data received at SWO on 15 May
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None
B.  Proton Events:  None
C.  Geomagnetic Activity Summary:  The geomagnetic field has been at
unsettled to minor storm levels due to a favorably positioned
coronal hole.  The greater than 2 MeV electron flux at
geosynchronous orbit reached high levels today.
D.  Stratwarm:  None
E.  Daily Indices: (real-time preliminary/estimated values)
10 cm 099  SSN 097  Afr/Ap 015/023   X-ray Background B1.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.2e+06   GT 10 MeV 1.1e+04 p/(cm2-ster-day)
(GOES-12 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.60e+08 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W92 degrees)
3 Hour K-indices:
Boulder 4 3 4 3 5 4 2 3 Planetary 4 4 4 4 4 4 3 3 
F.  Comments:  The GOES 10 energetic proton detectors are showing
intermittent, high noise levels in the higher energy proton channels
(greater than about 80 MeV). This problem was first noticed in data
taken April 26, 2003. To ensure continued operational monitoring of
important energetic particle data, it is necessary to reassign
primary/secondary designations for the GOES Space Environment
Monitor (SEM) detectors. As of 1500 UT on May 15, GOES-8 became the
primary satellite for protons. GOES 12 will be the primary satellite
for magnetometer, X-ray, and electron measurements. GOES 10 will be
the secondary satellite for all SEM sensors - magnetometer, X-ray
sensor, and energetic particle sensor. This short-term solution
(approximately 2 - 3 months) will be in place until we define and
implement a permanent fix. A more detailed explanation can be found
at: http://www.sec.noaa.gov/GOES.html.


=========================================================   
Description:

Part A.
  A profile of significant solar events including start, maximum, 
  and end times, region number and location, x-ray and optical 
  classification of flares, significant radio emission at 245 MHz, 
  10 cm (2695 MHz), and sweep frequencies, and significant short wave 
  fades. All available data for an event are included in this section 
  if one or more of the following thresholds are reached:

        Class-M or greater x-ray flare,
        Optical flare of importance > 2B,
        Radio burst of > 100 sfu at 245 MHz,
        Radio burst  > 100% above background at 2695 MHz,
        Type II or IV sweep frequency burst,
        Shortwave fade of importance 2 or greater.

Part B.
  Proton event data given whenever the flux of >10 MeV protons reaches 
  or exceeds 10 particle flux units (pfu). Data include start, maximum, and 
  end times for events at >10, 50, and 100 MeV.

Part C.   A summary describing the geomagnetic field during the previous UTC day.

Part D.   Stratospheric warming alerts when they are in effect.

Part E.   Indices about the previous UTC day:

           Observed 2000 UTC Penticton 10.7 cm flux,
           SEC sunspot number (SSN),
           Estimated geomagnetic AFr-index, 
           Estimated planetary AP-index,
           Daily x-ray background flux expressed in the B, C, M, X scale (W m-2),            
           Daily proton fluence (flux accumulation over 24 hours) for >1 MeV and
               >10 MeV protons at geosynchronous altitudes,
           3-hourly KB-indices (Boulder) and estimated KP-indices (Planetary).

Part F.  Reserved for additional comments as required.