experimental

Entrée : OLI

URI: https://terra-vocabulary.org/ncl/FAIR-Incubator/earthsciencesensors/c_5c81e54e

The Operational Land Imager (OLI), built by the Ball Aerospace & Technologies Corporation, will measure in the visible, near infrared, and short wave infrared portions of the spectrum. Its images will have 15-meter (49 ft.) panchromatic and 30-meter multi-spectral spatial resolutions along a 185 km (115 miles) wide swath, covering wide areas of the Earth's landscape while providing sufficient resolution to distinguish features like urban centers, farms, forests and other land uses. The entire Earth will fall within view once every 16 days due to LDCM's near-polar orbit. OLI's design is an advancement in Landsat sensor technology and uses an approach demonstrated by the Advanced Land Imager sensor flown on NASA's experimental EO-1 satellite. Instruments on earlier Landsat satellites employed scan mirrors to sweep the instrument fields of view across the surface swath width and transmit light to a few detectors. The OLI will instead use long detector arrays, with over 7,000 detectors per spectral band, aligned across its focal plane to view across the swath. This "push-broom" design results in a more sensitive instrument providing improved land surface information with fewer moving parts. With an improved signal-to-noise ratio compared to past Landsat instruments, engineers expect this new OLI design to be more reliable and to provide improved performance.

Métadonnées principales

est un Concept | Sensor
modifié le 1 Dec 2023 10:43:54.375
soumis parViqui Agazzi
accepté le 29 Sep 2022 09:14:26.396

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date accepted 29 Sep 2022 09:14:26.396
date submitted 29 Sep 2022 09:11:15.148
definition
entity OLI
source graph graph

item class Concept | Sensor
label OLI
modified 1 Dec 2023 10:43:54.375
notation c_5c81e54e
register earthsciencesensors
status status experimental
submitter
account name victoria.agazzi@teledetection.fr
name Viqui Agazzi

type register item
version info 3
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Définition

broader Imaging Spectrometers/Radiometers
definition The Operational Land Imager (OLI), built by the Ball Aerospace & Technologies Corporation, will measure in the visible, near infrared, and short wave infrared portions of the spectrum. Its images will have 15-meter (49 ft.) panchromatic and 30-meter multi-spectral spatial resolutions along a 185 km (115 miles) wide swath, covering wide areas of the Earth's landscape while providing sufficient resolution to distinguish features like urban centers, farms, forests and other land uses. The entire Earth will fall within view once every 16 days due to LDCM's near-polar orbit. OLI's design is an advancement in Landsat sensor technology and uses an approach demonstrated by the Advanced Land Imager sensor flown on NASA's experimental EO-1 satellite. Instruments on earlier Landsat satellites employed scan mirrors to sweep the instrument fields of view across the surface swath width and transmit light to a few detectors. The OLI will instead use long detector arrays, with over 7,000 detectors ...
exact match e8a6f9ad e376 495c 869e 3467526b49ec
label OLI
pref label OLI
type Concept | Sensor