What is the radiometric resolution of QuickBird?
QuickBird-2 is an imaging satellite of DigitalGlobe Inc. (formerly EarthWatch) of Longmont, CO, USA, offering commercial imagery at 0.61 m (PAN) and at 2.4 m (MS) resolution.
Is QuickBird a high resolution sensor?
QuickBird is the second submeter resolution commercial sensor to enter orbit, being launched in October, 2001.
How do you find radiometric resolution?
While the arrangement of pixels describes the spatial structure of an image, the radiometric characteristics describe the actual information content in an image. Every time an image is acquired on film or by a sensor, its sensitivity to the magnitude of the electromagnetic energy determines the radiometric resolution.
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 |
How many multispectral bands are collected by the QuickBird sensor?
four multispectral bands
Satellite imagery (e.g., Quickbird) consisting of four multispectral bands (blue: 450–520 nm, green: 520–600 nm, red: 630–690 nm, NIR: 760–900 nm) at a 2.4-m spatial resolution and a panchromatic band at a 0.6-m spatial resolution is available from Digital Globe (Fig.
What is the status of Landsat 7?
The USGS and NASA are planning for Landsat 7 to remain on-station and fulfilling its current science mission until Landsat 9 completes its launch (scheduled for September 16, 2021), on-orbit checkout, and commissioning.
What is radiometric resolution example?
The radiometric resolution of image data in remote sensing stands for the ability of the sensor to distinguish different grey-scale values. It is measured in bit. The more bit an image has, the more grey-scale values can be stored, and, thus, more differences in the reflection on the land surfaces can be spotted.
Which sensors has the highest radiometric resolution?
The Landsat 7 sensor records 8-bit images; thus it can measure 256 unique grey values of the reflected energy while Ikonos-2 has an 11-bit radiometric resolution (2048 grey values). In other words, a higher radiometric resolution allows for simultaneous observation of high and low contrast objects in the scene.
How often does Landsat 8 capture imagery of the same location on the Earth’s surface?
Landsat 8 orbits the the Earth in a sun-synchronous, near-polar orbit, at an altitude of 705 km (438 mi), inclined at 98.2 degrees, and completes one Earth orbit every 99 minutes. The satellite has a 16-day repeat cycle with an equatorial crossing time: 10:00 a.m. +/- 15 minutes.
