| 21. | "' Landsat 8 "'is an American Earth observation satellite launched on February 11, 2013.
|
| 22. | He also photographed Mexico and Mexico City as part of the mission's Earth observations.
|
| 23. | Usually, Earth observation satellites have three or more radiometers ( Landsat has seven ).
|
| 24. | Earth observation footage from the camera also appeared in the 1991 film Blue Planet.
|
| 25. | Prism spectrometers are ideal for Earth observation because they measure wide spectral ranges competently.
|
| 26. | International Institute for Geo-information Science and Earth Observation, Enschede.
|
| 27. | Most Earth observation satellites carry instruments that should be operated at a relatively low altitude.
|
| 28. | Dozens of scientists attempted experiments in disciplines ranging from medicine and biotechnology to Earth observation.
|
| 29. | Such orbits are desirable for many Earth observation missions such as weather, imagery, and mapping.
|
| 30. | Several operators of Earth observation satellites, such as GeoEye and Spot Image, provide images commercially.
|
