Imagery Comparison
GeoEye-1 and IKONOS Feature Comparison
|
Satellite Feature |
GeoEye-1 |
IKONOS |
| Resolution |
.50-meter |
1-meter |
|
Spectral range (pan) |
450-800 nm |
526-929 nm |
|
Blue |
450-510 nm |
445-516 nm |
|
Green |
510-580 nm |
505-595 nm |
|
Red |
655-690 nm |
632-698 nm |
|
Near IR |
780-920 nm |
757-853 nm |
|
Pan Resolution at nadir |
.41 meters |
.82 meters |
|
Pan Resolution at 60 elevation |
.50-meters |
1.0 meter |
|
Multi-spectral Resolution at nadir |
1.64 meters |
3.28 meters |
|
Swath width at nadir |
15.2 km |
11.3 km |
|
Launch date |
06-Sep-08 |
24-Sep-99 |
|
Life Cycle |
7 years |
Over 8.5 years |
|
Revisit Time |
3 days at 40° latitude with elevation > 60° |
3 days at 40° latitude with elevation > 60° |
|
Orbital Altitude |
681 km |
681 km |
|
Nodal Crossing |
10:30 AM |
10:30 AM |
|
Approximate Archive size (km2) |
0 |
245,000,000 |
|