Ikonos satellite

Spacecraft design and mission details

Name	IKONOS
Country	USA
Developer	Lockheed Martin, Eastman, Rayteon
Operator	DigitalGlobe
Launch vehicle	Athena-2
Launch date	24 September 1999
Launch site	Vandenberg Air Force Base, California
Date of deactivation	31 March 2015
Orbit: Type Altitude, km Inclination, deg.	Sun-synchronous 681 98,2
Mission duration, years	15 years, 6 months, 6 days
Revisit frequency, days	~ 3
Spacecraft dimensions, m	1,83 × 1,57
Power, W	600
Mass, kg	726

Collection scenarios:

• Long strip: 360 × 11,3 km
• Large Area Collect: 112 × 51 km
• Multiple Point Targets: 11 × 11 km
• Stereo Area Collect: 120 × 11 km

Products

DigitalGlobe offers products of various tier: Geo, GeoProfessional, GeoStereo. Customers can choose and order a product type that fits their needs better.

Geo – this type of products intends for manual interpretation and analysis of the satellite imagery. The imagery goes through radiometric correction and minimal geometric correction according to the calibrating parameters of the camera. Then the customer receives the imagery with all necessary information for the photogrammetric processing, including a rigorous sensor model and rational polynomial coefficients (RPC). All Geo products are map-projected, rectified to a datum and map projection system.

GeoProfessional – intended for customers who need a ready-for-use product with high geometric accuracy. All GeoProfessional products are orthorectified and have a radiometric and geometric correction, including considering the influence of the relief of the surface according to the existing DEM. Customers receive the products in the UTM coordinate system, but it also can be supplied in another system, depending on the customer’s wish. GeoProfessional products are available in two types with different accuracy: Precision and Precision Plus. Products are created basing on the imagery collected with a 0-45° off-nadir angle.

GeoStereo – high-resolution stereo pair collected in the same orbital pass, minimizing changes in lighting or scene content. DigitalGlobe provides the stereo imagery pairs with a RPC camera model file. The RPC file provides camera model data to popular software packages for block adjustment, photogrammetric extraction of three-dimensional feature coordinates; DTMs and orthorectification suitable for DEM generation and other photogrammetric operations.

Each stereo pair contains images collected at an off-nadir angle between 0 and 30 degree. A satellite collects stereo pairs with 30-45 degrees convergence (0.54 to 0.83 base-to-height ratio). The GeoStereo products have a minimum horizontal accuracy of 15 meters CE90 and a vertical accuracy of 22 meters LE90.

Product	Geo	GeoProfessional	GeoStereo
Radiometric correction	Yes	Yes	Yes
Geometric correction	Yes	Yes	Yes
Georeferencing	Yes	-	-
Orthorectification	-	Yes	Yes
Horizontal accuracy (CE90%), m	15	1:12000 – 10 1:5000 – 4 (with GCPs)	1:20000 – 15 1:5000 – 4 (with GCPs)
Vertical accuracy (LE90%), m	-	-	1:20000 – 2 1:5000 – 6 (with GCPs)
Datum	WGS84, NAD83
Projections	UTM, other projections
Spectral bands	Panchromatic, multispectral (4 bands) or Bundle (PAN+4 bands); Natural colours: Infra-red; Synthesized (PAN+4 bands)
Minimum order size, km2	Archive data – 49
Delivery formats	GeoTIFF 1.0, NITF 2.1 or NITF2.0
Delivery method	CD, DVD, Hard Drive, FTP

Applications:

• Creation and update of maps and plans;
• Creation of DTMs;
• Engineering survey for construction works of oil and gas facilities;
• Inventory of forests and forest management;
• Monitoring of the crops’ state, yield forecasting;
• Creation of maps for urban planning purposes;
• Emergency monitoring;
• Researches.

For cost calculation of the IKONOS imagery for your area of interest, send technical description of your proposal to: innoter@innoter.com. For consultations contact by the phone: +7 495 245-04-24