OMPS

Ozone Mapping and Profiler Suite

Satellites

NPP, NPOESS 1 and 3

Status

Being developed.- Limb component currently not baselined on NPOESS – To be utilised in the period: 2010 to ~ 2027

Mission

Ozone profile and total-column or gross profile of other species. Tracked species: BrO, HCHO, NO2, O3, OClO, SO2

Instrument type

Three UV/VIS/NIR grating spectrometers for mapping, nadir profiling and limb sounding respectively

Scanning technique

Mapper: cross-track swath 2800 km, along-track one 50-km line in 7.6 s. Nadir profiler: one along-track sounding every 38 s (250 km). Limb sounder: 1-km vertical steps between 10 and 60 km; three adjacent 250-km views, fore- and sides, for a 750 km swath

Coverage/cycle

Global coverage: mapper once/day, nadir profiler in 6 days, limb sounder in 4 days. Daylight only

Resolution (s.s.p.)

Mapper: 50 km. Nadir profiler: 250 km. Limb sounder: about 300 km

Resources

Mass: 56.2 kg - Power: 54 W - Data rate: 180 kbps

Subsystem

Spectral range

Spectral resolution

SNR at specified input radiance

Cross-track mapper for total ozone

300 - 380 nm

1 nm

1000

Nadir-viewing ozone profiler

250 - 310 nm

1 nm

35 (at 250 nm) to 400 (at 310 nm)

Limb scanning

290 - 1000 nm

1.5 to 40 nm

320 (at 290 nm) to 1200 (at 600 nm)