What are Satellite/Sensor Characteristics
Satellite/Sensor Properties for Image Processing
This article will bring information and characteristics of satellite/sensor. It is very important to know the characteristics of satellite image, this help user to select and acquire satellite image as per need of research and project.
Image can be select based on mapping purpose and for this basic properties are very important for selection of satellite image, which are below-
- Spectral Resolution
- Spatial Resolution
- Temporal Resolution
These properties play significant role
for better image classification as per requirement of project. These properties
will help to select appropriate image as per need of project for example in
first case, spatial resolution may be important if detail information required
but in other case if repeatedly satellite images required then temporal resolution become important.
Instead of these resolution swath of
satellite image is also important as it describe the coverage of satellite
image.
Below some significant satellite/sensor
properties discussed.
World View-III
|
Launch Date |
August 13, 2014 |
|
Orbit |
Sun Synchronous |
|
Altitude |
617 Km |
|
Spectral
Resolution |
Panchromatic: 450-800 nm |
|
Spatial
Resolution |
Panchromatic Band- 0.31m, Multi Spectral Bands- 1.24m |
|
Temporal
Resolution |
4.5 days |
|
Radiometric
Resolution |
11-bits Pan and MS; 14-bits SWIR |
|
Swath |
13.1 KM |
QuickBird
|
Launch Date |
October
18, 2001 |
|
Orbit |
Sun Synchronous |
|
Altitude |
450
Km |
|
Spectral Resolution |
Pan: 450-900 nm Blue: 450-520 nm Green: 520-600 nm Red: 630-690 nm Near IR: 760-900 nm |
|
Spatial Resolution |
Pan: 61 cm; Multi Spectral: 2.60 m |
|
Temporal Resolution |
1-3.5 days |
|
Radiometric Resolution |
11-bits Pan and MS; 14-bits SWIR |
|
Swath |
16.8
Km/18 Km |
IKONOS
|
Launch Date |
24
September 1999 |
|
Orbit |
Sun Synchronous |
|
Altitude |
681
Km |
|
Spectral Resolution |
Pan: 450-900 nm Blue: 450-520 nm Green: 520-600 nm Red: 630-690 nm Near IR: 760-900 nm |
|
Spatial Resolution |
Pan: 1m; Multi Spectral: 4 m |
|
Temporal Resolution |
3 days |
|
Radiometric Resolution |
11-bits |
|
Swath |
13.8
Km |
SPOT-7
|
Launch Date |
30
June 2014 |
|
Orbit |
Sun Synchronous |
|
Altitude |
694
Km |
|
Spectral Resolution |
Pan
(450 nm – 750nm) Blue
(455 nm –525 nm) Green
(530 nm –590 nm) Red
(625 nm – 695 nm) Near-Infrared
(760 nm – 890 nm) |
|
Spatial Resolution |
Pan: 1.5m; Multi Spectral: 6 m |
|
Temporal Resolution |
1 day |
|
Radiometric Resolution |
12-bits |
|
Swath |
60
Km |
CARTOSAT-2
|
Launch Date |
30
June 2014 |
|
Orbit |
Sun Synchronous |
|
Altitude |
630.6
Km |
|
Spectral Resolution |
Pan
(500 nm - 850 nm) |
|
Spatial Resolution |
Pan: 1 m |
|
Temporal Resolution |
4/5 days |
|
Radiometric Resolution |
10-bit |
|
Swath |
9.6
Km |
LISS-IV
|
Launch Date |
20
April 2011 |
|
Orbit |
Sun Synchronous |
|
Altitude |
817
Km |
|
Spectral Resolution |
Green Red NIR |
|
Spatial Resolution |
5.8 m |
|
Temporal Resolution |
5 days |
|
Radiometric Resolution |
10-bit |
|
Swath |
70
Km |
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