October 1, 2007

                     Radio Bursts Event List

This directory contains a "Radio Burst Event List" for the last 45 days.
The event reports are from SWPC's preliminary solar event reports received 
at SWPC and manually reviewed and edited by the duty forecaster. SWPC 
compiles these lists from preliminary reports received from contributing 
stations. Incorrect, missed, and incomplete reports are possible. Complete
daily event lists are available at
          http://swpc.noaa.gov/ftpmenu/indices.html 
          or /pub/indices/ for FTP users.

The Radio Burst list is updated every 30 minutes at 10 and 40 minutes 
past the hour. 

A sample list and descriptions of each field are included below. 
The format is fixed, 80 columns wide. 


Other sources of Solar Event Reports
   o "Energetic events" are available other SWPC products
         Solar Geophysical Activity Summary (SGAS)
         http://swpc.noaa.gov/ftpmenu/forecasts/SGAS.html
       
         Daily Space Weather Event Reports 
         http://swpc.noaa.gov/ftpmenu/indices/dayevt.html
       
         SWPC's WEEKLY publication, in Adobe PDF format
         http://swpc.noaa.gov/weekly/
   
    o Archived at National Geophysical Data Center
       http://www.ngdc.noaa.gov/stp/
       

Your comments and suggestions are welcome. 
Thank you,

 SWPC.Webmaster@noaa.gov


Sample Report
********************************************************************************
:Product: radio_bursts.txt
:Created: 2007 Oct 04 2140 UT
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
# Send comments and questions to SWPC.Webmaster@noaa.gov
#
# Updated every 30 minutes.
#
#             Radio Bursts in Last 45 days
# 10cm (2695MHz) Bursts >=100% above background,
# 245MHz Bursts > 100 flux units,
# 245MHz Radio Noise Storms,
# Type II, and Type IV Sweep Frequency Bursts.
#                                                      Peak Flux Solar Wind
#   Date    Start    Max       End  Obs  Q  Type Freq   or Sweep   Speed   Reg#
#------------------------------------------------------------------------------
2007 08 29   1138   1138      1139  SAG  G   RBR  245       110                

2007 08 24   1217   1217      1217  SAG  G   RBR  245       360                


********************************************************************************

The first line is the filename.
The second line is the date/time the list was created.
All times and dates are UTC, Coordinated Universal Time.
Lines beginning with : or # are header lines.

Date  - UTC date of the start time of the events.

Start, Max, End  - 
        The UTC Time (Coordinate Universal Time, same as UT) of the start, 
        maximum, and end of the event as reported by the observing site. 
        "////" indicates a missing time. 
        The UTC day of the event's begin time is the UTC day of the list. 
        The UTC day of the maximum and/or end times may or may not be the same 
        as the begin time. Most solar events are several hours in duration. If 
        the maximum or end time is less than the begin time, then assume the 
        times are for the next UTC day. 
        A single letter can proceed a Start, Max, or End time. 
            A=after, B=before, U=uncertain. 
            For example the begin time A0146 means the event began after 0146. 

Obs   - The reporting observatory.
        CUL - Culgoora, Australia 
        HOL - Holloman AFB, NM, USA    LEA - Learmonth, Australia
        PAL - Palahua, HI, USA         RAM - Ramey AFB, PR, USA
        SAG - Sagamore Hill, PA, USA   SVI - San Vito, Italy
           (See the "Station Lists" directory in the "Welcome" directory for
            more information.)

Q     - Quality
        For radio bursts at fixed and sweep frequencies, and for storms, this 
        shows the quality of the data
                       C = Corrected report
                       G = Good 
                       U = Uncertain

Type  - Type of report, see http://www.swpc.noaa.gov/info/glossary.html
          RBR = Fixed-frequency radio burst
          RNS = Radio Noise Storm
          RSP = Sweep-frequency radio burst

Freq - RBR and RNS -- Frequency in MHz
       RSP         -- Frequency rancge in MHz

Peak Flux or Sweep 

   RBR 245 or 2695 MHz. -- Peak value above pre-burst background of 
    associated radio burst.
	       1 solar flux unit = 10-22 Wm-2 Hz-1

   RSP:
	II/i  nnn -- Type II: Slow drift burst
	IV/i  nnn -- Type IV: Broadband smooth continuum burst 
	
     i -- The intensity on a relative scale from 1 (low) to 3 (high) of 
	      the sweep radio event associated with the energetic event. 

Solar Wind Speed          
    nnn -- Shock speed in km/s for Type II bursts
	

Reg# - The SWPC-assigned solar region number. The daily SWPC Solar Region 
       Summary report contains detailed information about solar regions.
       see http://swpc.noaa.gov/ftpmenu/forecasts/SRS.html