What is MODIS satellite data?
MODIS is a 36-band imaging radiometer on the NASA Earth Observing System (EOS) satellites Terra, launched in December 1999, and Aqua, launched in May 2002.
How many MODIS satellites are there?
two satellites
The Moderate Resolution Imaging Spectroradiometer (MODIS) is an optical sensor onboard two satellites named Terra (originally known as EOS AM-1) and Aqua (originally known as EOS PM-1) operated by NASA.
When was MODIS started?
The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument is operating on both the Terra and Aqua spacecraft. The Terra satellite was launched on December 18, 1999 and the Aqua on May 4, 2002.
How does MODIS collect data?
As the Aqua and Terra satellites orbit the earth, their MODIS instruments collect imagery of the same area on Earth approximately three hours apart. The entire Earth’s surface is imaged every one to two days, and the sensors work in tandem to optimize cloud-free surface viewing.
Is MODIS active or passive?
Quickbird, WorldView, Landsat and MODIS are all passive sensors that measure only radiation emitted by the Sun and reflected or emitted by the Earth.
What is a Landsat satellite?
The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey. Landsat represents the world’s longest continuously-acquired collection of space-based moderate-resolution land remote sensing data.
What is Aqua and Terra?
Terra’s orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon.
What is MODIS good for?
MODIS helps scientists determine the amount of water vapor in a column of the atmosphere and the vertical distribution of temperature and water vapor—measurements crucial to understanding Earth’s climate system.
What MODIS means?
Moderate Resolution Imaging Spectroradiometer
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (originally known as EOS AM-1) and Aqua (originally known as EOS PM-1) satellites.
How often does the MODIS satellite view the Earth?
MODIS is the instrument aboard the NASA’s Terra and Aqua satellites. Terra MODIS and Aqua MODIS are viewing the entire Earth’s surface every one to two days, obtaining data in 36 spectral bands with wavelengths ranging from 0.4 to 14.385 μm.
What is the MODIS instrument on the Aqua satellite?
The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument is operating on both the Terra and Aqua spacecraft. The Terra satellite was launched on December 18, 1999 and the Aqua on May 4, 2002. It has a viewing swath width of 2,330 km and views the entire surface of the Earth every one to two days.
Where does the data from MODIS go to?
Along with all the data from other instruments on board the Terra spacecraft and Aqua Spacecraft, MODIS data are transferred to ground stations in White Sands, New Mexico, via the Tracking and Data Relay Satellite System (TDRSS). The data are then sent to the EOS Data and Operations System (EDOS) at the Goddard Space Flight Center.
When was the MODIS spectroradiometer first launched?
The first MODIS instrument, with a 10:30 a.m. equatorial crossing time, was launched aboard Terra in 1999; the second MODIS instrument, with a 1:30 p.m. equatorial crossing time, was launched aboard the Aqua platform in 2002.