HiRI

High Resolution Imager

Satellites

Pléiades 1 and 2

Status

Being developed - To be utilised in the period 2010 to ~ 2016

Mission

Land and vegetation observation. Digital Elevation Model (DEM)

Instrument type

Two parallel radiometers, 5 VNIR channels, 4 multi-spectral (MS), one panchromatic (PAN)

Scanning technique

Bushbroom, 7500 pixel/line (MS), 30000 pixel/line (PAN), swath 20 km s.s.p.; cross-track and along-track pointing capability by up to ± 30° off-nadir. By combining cross- and along- track capabilities, composite images of 120 km x 120 km may be built. Stereoscopic capability in-orbit and between successive orbits

Coverage/cycle

Global coverage in 26 days, in daylight. With strategic pointing, one place can be observed every 2 days.

Resolution (s.s.p.)

2.8 m (MS), 0.7 m (PAN)

Resources

Mass: 200 kg - Power: 400 W - Data rate: 465 Mbps

Central wavelength

Spectral interval

Radiometric accuracy (SNR)

0.49 µm

0.45 – 0.53 µm

…... @ ….. % albedo

0.55 µm

0.52 – 0.58 µm

…... @ ….. % albedo

0.66 µm

0.62 – 0.70 µm

…... @ ….. % albedo

0.83 µm

0.78 – 0.89 µm

…... @ ….. % albedo

0.69 µm (PAN)

0.48 – 0.90 µm

…... @ ….. % albedo