What is the temporal resolution of SPOT satellite?
What is the temporal resolution of SPOT satellite?
The panchromatic band has a resolution of 10 meters, and the three multispectral bands (G, R, NIR) have resolutions of 20 metres. They have a scene size of 3600 km2 and a revisit interval of one to four days, depending on the latitude.
What is temporal resolution of Landsat satellite?
Landsat 7 data has eight spectral bands with spatial resolutions ranging from 15 to 60 m (49 to 197 ft); the temporal resolution is 16 days. Landsat images are usually divided into scenes for easy downloading.
What is the temporal resolution of Ikonos?
IKONOS Satellite Sensor Characteristics
| Launch Date | 24 September 1999 at Vandenberg Air Force Base, California, USA |
|---|---|
| Altitude | 681 kilometers |
| Resolution at Nadir | 0.82 meters panchromatic; 3.28 meters multispectral |
| Resolution 26° Off-Nadir | 1.0 meter panchromatic; 4.0 meters multispectral |
What is temporal resolution in remote sensing?
Temporal resolution is defined as the amount of time needed to revisit and acquire data for the exact same location. When applied to remote sensing, this amount of time depends on the orbital characteristics of the sensor platform as well as sensor characteristics. Temporal resolution is usually expressed in days.
What are the four types of resolution?
Remotely sensed images are generated based on four different types of resolutions:
- Spectral.
- Spatial.
- Temporal.
- Radiometric.
What is the spatial resolution of IKONOS image?
0.82 m
| Spectral range PAN (panchromatic) | 0.45 – 0.90 µm |
|---|---|
| Spectral range MS (multispectral) | 0.45-0.52 µm, 0.52-0.60 µm, 0.63-0.69 µm, 0.69-0.90 µm |
| Spatial resolution (GSD) | 0.82 m PAN, 3.2 m MS, orbital altitude of 600 km |
| Swath width | 12.2 km |
| Design life | 5 years |
What is spatial resolution in image processing?
Spatial resolution is a term that refers to the number of pixels utilized in construction of a digital image. Images having higher spatial resolution are composed with a greater number of pixels than those of lower spatial resolution.
What does 1 meter resolution mean?
Spatial resolution describes how much detail in a photographic image is visible to the human eye and refers to the smallest possible feature that can be detected. A 1-meter image means each pixel represents a 1 meter by 1 meter square on the ground; 2-meter = 2 meter by 2 meter square.
Why is temporal resolution important?
The temporal resolution provides information on the distance of time between the acquisitions of two images of the same area. The higher the temporal resolution, the shorter the distance of time between the acquisitions of images.
How big is the area of the spot 5 satellite?
Thanks to SPOT-5’s improved 5-meter and 2.5-meter resolution and wide imaging swath, which covers 60 x 60 km or 60 km x 120 km in twin-instrument mode, the SPOT-5 satellite provides an ideal balance between high resolution and wide-area coverage.
When did the spot 5 sensor go out of orbit?
SPOT-5 Satellite Sensor (2.5m/5m) – Decommissioned. The SPOT-5 satellite sensor has been decommissioned as of March 31, 2015. SPOT-5 was successfully placed into orbit by an Ariane 4 from the Guiana Space Centre in Kourou during the night of 3 to 4 May 2002. Archived SPOT-5 Satellite Imagery will remain available.
How often does the spot 5 get data?
SPOT-5/TAKE5 supplies data every 5 days, with a resolution closer to Sentinel-2’s (10 m) and over a more convenient period for summer crop monitoring in temperate zones (April to September 2015). TAKE5 was a new challenging mission for SPOT-5 as the TAKE5 orbit was outside the SPOT5’s qualified flight dynamics.
What was the purpose of the spot 4 satellite?
On this orbit, SPOT4 was programmed to acquire a time-lapse series of images over 42 sites with a five days revisit period from February to end of May 2013. The data set it produced is aimed at helping future users of the Sentinel-2 mission to learn working with time-lapse series.