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
8 Multispectral: Visible and NIR; Wavelength Range- 400 nm - 1040 nm
8 SWIR: Wavelength Range 1195 nm - 2365 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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