UCOSE Codes

Example:

Definition of symbols:

First Line-

  • UCOSE comes from COSmic rays, code E

  • I I I I I = station indicator

  • DD = UT day of first period for which flux values are given
  • T = type of apparatus
    • 0 = neutron monitor (IGY-Simpson type)
    • 1 = high counting rate neutron monitor (IQSY-type)
    • 2 = meson monitor (IGY-type)
    • 3 = meson monitor (IQSY type)
    • 4 = telescope, no shielding
    • 5 = ionization chamber
  • HH = UT hour of message (normally in the UT day following the date of DD)

  • a = type of variation during the day
    • 0 = normal daily variation
    • 1 = beginning of a pre-decrease
    • 2 = pre-decrease
    • 3 = commencement of a Forbush decrease
    • 4 = Forbush decrease
    • 5 = recurrent activity
    • 6 = increase
    • 7 = after-effect of increase
    • 8 = daily variation of large amplitude
    • 9 = daily variation of anomalous phase
  • b = sign of daily variation (below or above arbitrary level)
    • 7 = negative
    • 8 = zero
    • 9 = positive
  • c c c = average deviation expressed in steps of thousandths of an arbitrary mean level

  • HH = UT hour indicator; deviation of flux from the normal value following with ddd refers to the interval HH-1 to HH+1 hours; if the deviation is positive, 30 is added to the hour to obtain HH
  • ddd = deviation of cosmic ray flux from level expressed by steps of thousandths of an arbitrary mean count

Note: The arbitrary level is selected so that the deviations can be specified by three digits.
The arbitrary level is always chosen higher than the actual level (see example below).

Note: / is to be used for data not available.