Category: Satellites

Satellites: Types of Orbit

There are four primary types of orbit for satellites Low Earth Orbit (LEO) Geosynchronous Earth Orbit (GEO) Medium Earth Orbit (MEO) Elliptical    The vast majority of satellites (just over 72%) are in Low Earth Orbit a breakdown of what orbit satellites, by numbers, is...

GOES – Geostationary Operational Environmental Satellites

The USA’s  Geostationary Operational Environmental Satellites (GOES) Satellites were first launched in 1974  (GOES-A) and will continue beyond 2036. These satellites provide weather and environmental information with the lastest GOES-R series providing constant monitoring over the US with near real-time updates. The GOES series are…

Satellites: GOES-17

GOES-17 is the second satellite of the R-Series and works alongside GOES-16. G-OES-17 has the same instruments as GOES-16 and will be focusing on providing high quality, near-real-time updates on the weather and the environment. It is collecting data at 4 times the resolution and…

Satellites: GOES-16

GOES-16 is a highly sophisticated weather and atmospheric satellite – the most advanced in the United States. It is the first of the GOES R-Series and the 16th of the GOES (Geostationary Operational Environmental Satellite) project. It was the first-ever satellite to measure lightning from…

Satellites: GOES R-Series

GOES, Geostationary Operational Environmental Satellites, R Series is the United States’ most advanced weather satellite system. This is the fourth generation GOES series, fifth allowing for the SMS series – which first launched in 1974.  The GOES-R Series is actually four satellites R, S, T…

Satellite Imagery: Boats in Bay of Naples

This image shows maritime traffic in the Bay of Naples over several years, taken by the radar satellites from ESA’s SENTINEL-1 mission. These two satellites are providing radar images night and day. The image was created by compiling hundreds of by radar images into a…

Satellite Imagery: Antarctic Sunset

The below image is taken from ESA’s SENTINEL-3B.    The line of light and dark is the line between day and night. This picture was taken by the satellite’s ocean and land color instrument, with a resolution of 300m, 21 distinct bands, and a swath…

Satellite Imagery: Falkland Islands

The image below is of the Falkland Islands, taken by ESA’s SENTINEL-1. The images were taken, via radar, on two separate dates a month apart  – December 2019 and January 2020. The combined images show changes over time. The main visible are in the open…

Satellites: Revisit time

Revisit to detect a change - How long do I have to wait for an image and often can I have an update? While a single image may contain a lot of information, many times we want to detect a change and hence we need...