Tag: Satellite

Satellites: SENTINEL-4

SENTINEL-4 mission is part of ESA’s Copernicus program. SENTINEL-4 was launched in 2019 and is the heaviest of the Copernicus missions at 3,600 kg. Unlike SENTINEL-1 and SENTINEL-2 which orbit at around 700km, this orbits at nearly 36,000 KM in a geostationary orbit. S4, like…

Copernicus: SENTINEL 1 to 6

The European Space Agency, ESA, Copernicus programme has six missions, as of present: SENTINEL-1 Radar satellite, which provides the ability to see at night, through clouds, and provide millimetre accuracy on measuring elevation. SENTINEL-2 Optical satellite with multiple wavelength detectors, primarily for monitoring changes on...

Satellite: SENTINEL-2

SENTINEL-2, part of ESA's Copernicus program, is actually two separate two satellites -  SENTINEL-2A and SENTINEL-2B.  S-2A was launched on June 23rd, 2015 and 2B was launched two years later on March 7th, 2017.  Both 2A and 2B are optical satellites, with multiple wavelength detectors,...

Satellite: ESA SENTINEL-1

COPERNICUS AND SENTINEL-1  - BACKGROUND With the ambitious aim of creating a better understanding of the Earth, the European Space Agency (ESA) started the Copernicus program – “Europe's eye on the earth”. This was much more than just collecting high-quality data, this was about providing...

Satellites: SENTINEL-5

SENTINEL-5 Overview SENTINEL-5, launched in 2020,  is ESAs fifth mission as part of the Copernicus Programme.  Like its predecessor SENTINEL-4, it is focused on monitoring the climate and air quality – providing data on a wide range of areas, from pollutants such as NO2 to…

Europe sees drop in NO2 due to Lockdown

European cities have seen a dramatic drop in Nitrogen Dioxide (No2) levels as a result of the lockdown -  the simple act of reducing transport has transformed the environment. The same impact has been seen in China as the lockdown came into force. In China,...

NO2 Plummets During Lockdown in China

Satellite images from around the world have shown a dramatic reduction in NO2 (Nitrogen Dioxide) during the lockdown. The images of China (see below) show the immediate impact of reducing transport has on pollutants  – including NO2. During the lockdown, the NO2 levels plummeted, in…