IKONOS Satellites

(IKONOS: Greek word for "Image")

 

 

Platform Lifetime
(design)
Altitude Equator Crossing Adjacent Orbits Repeat Coverage Sensors
IKONOS-1

IKONOS-2

1999-present

681 km

10:30 a.m.

2.9 days (panchromatic)
1.5 days (multispectral)

IKONOS Camera

 

IKONOS Sensors

Sensor Resolution (m) Swath Width (km)  Sensor Channels Spectral Bands (m)  Example
IKONOS Camera

1

13

 PAN

0.45-0.90  Washington, D.C. (September 30, 1999)

4

13

 IKONOS1
IKONOS2
IKONOS3
IKONOS4

0.45-0.52 (blue)
0.52-0.60 (green)
0.63-0.69 (red)
0.76-0.90 (near IR)
Atlanta, GA.

 

IKONOS Camera


The IKONOS telescope has the equivalent resolving power of a 10,000 mm telephoto lens. Designed and built by Kodak, the telescope features three concave mirrors, each precisely configured to capture and focus high-resolution Earth imagery onto the imaging sensors at the focal plane. Two additional flat mirrors 'fold' the imagery across the inside of the telescope. This significanly reduces the focal length, saving on size and weight.

Camera System
  • Total system weight: 376 lbs. (171 kg.)
  • Total system power consumption: 350 watt
Optical Telescope Assembly
  • Assembly size: 61in. long x 31in. wide (1524mm) x (787mm)
  • Assembly weight w/out focal plane unit: 240 lbs. (109 kg.)
  • Optical design: Three mirror anastigmat
  • Focal length / focal ratio: 10m / f14.3
  • Image resolution (at nadir): one-meter panchromatic, four-meter multispectral
  • Primary mirror: 27.5in. (0.7m) diameter x 4in. (100mm) thick, 29.5 lbs. (13.4 kg.)
Imaging Sensors
& Electronics
  • Focal Plane Unit
  • Unit size: 10in. x 9in. x 9in. (25cm x 23cm x 23cm)
  • Panchromatic sensor: 12 micron pixel pitch, 13,500 pixels
  • Multispectral sensor: 48 micron pixel pitch, 3375 pixels
Digital Processing Unit
  • Unit size: 18in. x 7.5in. x 12.4in. (46cm x 19cm x 31cm)
  • Compression rate: 11 bits per pixel compressed to 2.6 bpp
  • Compression speed: 4 million pixels per second per processing channel
Power Supply Unit
  • Unit size: 7in. x 8in. x 16in. (18cm x 20cm x 41cm)

Return to Sensors

 

Useful Links:

 
SpaceImaging.com

 


 copyright J.M. Piwowar
Last Update: 2011-09-02