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SENTINEL-3A

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SENTINEL-3A is classified as:


NORAD ID: 41335
Int'l Code: 2016-011A
Perigee: 808.9 km
Apogee: 810.7 km
Inclination: 98.6 °
Period: 100.9 minutes
Semi major axis: 7180 km
RCS: Unknown
Launch date: February 16, 2016
Source: European Space Agency (ESA)
Launch site: PLESETSK MISSILE AND SPACE COMPLEX (PKMTR)

SENTINEL 3A mission is set to last at least seven years, tracking changes in the planet's sea level, ocean color, marine organisms like algae and phytoplankton, ice sheets, and rivers and lakes. The satellite's instruments will measure global sea levels, detect the temperature of sea water, and determine the color of land and ocean surfaces worldwide. A powerful radar altimeter, together with a microwave radiometer, will be able to measure the height of the sea surface to an accuracy of 2 centimeters (0.8 inches) from 815 kilometers (506 miles) up in space. SENTINEL 3A is also featured with a thermal infrared radiometer, which will measure the temperature of the Earth, and that can measure the temperature of the ocean surface to an accuracy of about 0.2 degrees Celsius. An multi-spectral camera seeing in 21 visible and near-infrared bands will capture the colors of the sea, revealing oil spills, algae blooms, and plankton spreading across the ocean.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 41335U 16011A   18147.14615699 -.00000005  00000-0  15901-4 0  9993
2 41335  98.6248 214.6758 0001194 105.3339 254.7973 14.26734910118405
Source of the keplerian elements: AFSPC