URASP Codes
Single-frequency measurements of solar radio flux and events, with location of events if also measured at that frequency.
Example:
Definition of symbols:
- URASP comes from RAdio SPectral event
- I I I I I = station indicator
- Y = last digit of year
- MM = month of year, 01 = January, 02 = February, etc
- . DD = UT day of month
- FF = lowest frequency of equipment (first two significant figures)
- GG = highest frequency of equipment (first two significant figures)
- H = frequency multiplication indicator, where
- 0 = indicates FF is to be multiplied by 1, GG by 1 to obtain frequencies in MHz
- 1 = indicates FF is to be multiplied by 1, GG by 10 to obtain frequencies in MHz.
- 2 = indicates FF is to be multiplied by 10, GG by 10 to obtain frequencies in MHz.
- 3 = indicates FF is to be multiplied by 1, GG by 100 to obtain frequencies in MHz
- 4 = indicates FF is to be multiplied by 10, GG by 100 to obtain frequencies in MHz
- 5 = indicates FF is to be multiplied by 100, GG by 100 to obtain frequencies in MHz (If the report is based on real-time output which covers less than the full frequency range of the equipment, then give frequency range of real-time output.)
- a a = UT hour nearest beginning of observation period
- b b = UT hour nearest end of observation period
- c = number of significant events reported
- f f = lowest frequency of significant event
- g g = highest frequency of significant event
- h = frequency multiplication indicator for f f and g g, coded as for H above
- d = type of spectral activity, where
- 1 = type I storm = noise storm
- 2 = type II burst = slow-drift burst
- 3 = type III burst = fast-drift burst
- 4 = type IV = prolonged broad-band continuum, often preceded, at meter wavelengths, by a type II burst
- 5 = type V burst
- 6 = type III storm or dekametric continuum
- 7 = intermittent groups of type III bursts
- 8 = microwave burst of short (minutes) duration, usually of impulsive start
- 9 = continuum (except type IV and dekametric)
- / = unclassified activity
- HHmm = UT hour and minute of start of event (if in progress at beginning of observation period use / / / /)
- e = importance of event, if record timing is accurate to within 2 minutes:
- 1 = importance 1
- 2 = importance 2
- 3 = importance 3
- 7 = importance 1+
- 8 = importance 2+
- 9 = importance 3+
- Otherwise, if record timing is not accurate to within 2 minutes:
- 4 = importance 1
- 5 = importance 2
- 6 = importance 3
- HHmm = UT hour and minute of end of event (if event is still in progress at end of observation period, use / / / /).
Note: / is to be used for data not available.