Contents of OMPS Limb Profiler (LP) PMC Data File
Ntime = number of samples for season
Quantity
AltMaxRatio

BkgdShift
Day
DayOfYear
EventNumber
Latitude
Longitude
MaxRatio
Month
OrbitNumber
ScattAngle
SAAFlag

SlitNumber
TimeOfDay
Wavelength
Year

Description
Altitude of maximum value in radiance ratio
profile (above 80 km)
Zmax < 0.0 → Peak lies below 80 km
Zmax = 0.0 → Maximum value occurs in top 3
samples (removed for quality issues)
Normalization factor to force agreement between
measured radiance profile and background profile
at 45 km
Day of measurement
Running day of year of measurement
Event number in current orbit
Tangent point latitude of measurement
Tangent point longitude of measurement
Maximum radiance ratio (measured/background)
in profile. If altitude of maximum is greater than
80 km, result from 3-point quadratic fit is used.
Month of measurement
Orbit number since launch
Scattering angle of measurement
Flag for South Atlantic Anomaly particle effects at
satellite location based on climatology
0: Estimated effects < 5% of maximum level
1: Estimated effects = 5-40% of maximum level
2: Estimated effects = 40-75% of maximum level
3: Estimated effects > 75% of maximum level
Slit number for each event
Time of measurement (UT)
Wavelength of radiance data
Year of measurement

Units
km

Size
Ntime

none

Ntime

none
none
none
degrees
degrees
none

Ntime
Ntime
Ntime
Ntime
Ntime
Ntime

none
none
degrees
none

Ntime
Ntime
Ntime
Ntime

none
seconds
nm
none

Ntime
Ntime
Ntime
Ntime