GEOSAT-2 - Earth Online

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Cloud-free collections key for land monitoring

Satellite imagery is a crucially important tool for monitoring the land, but cloud cover can often block parts of Earth’s surface from view, limiting subsequent analyses.

New data available: GEOSAT-2 Portugal Coverage 2021

A new collection is available to the public through ESA’s Earthnet Third Party Missions Programme: the GEOSAT-2 Portugal Coverage 2021.

A summary of ESA Third Party Mission collections

A new summary is available, showcasing the ESA archives for Third Party Mission collections.

New open-source Python library improves rapid mapping services

In emergency services, rapid response is paramount. ICube-SERTIT’s Rapid Mapping Service provides near real-time delivery of geo-information to help emergency services respond quickly to disasters such as flooding, fires and landslides. A new Python open-source library, called EOReader, speeds up this mapping response by enabling the easy opening of imagery from multiple satellite sensors, both optical and synthetic aperture radar (SAR).

How GEOSAT helps to unlock the potential of Earth observation data

High-resolution imagery delivered by a privately-owned system of European satellites is facilitating international efforts to boost prosperity, protect the environment, and tackle urgent global challenges.

About GEOSAT-2

GEOSAT-2 (former Deimos-2) is an Earth-imaging satellite, built for GEOSAT of Spain, which launched 19 June 2014 and remains operational.

It is the second satellite of the GEOSAT Earth Observation system, following GEOSAT-1. The expected mission lifetime is at least seven years.

A high resolution satellite, it became the first European fully-private satellite capable of providing sub-metric multispectral imagery.

*GEOSAT-2 Mission Parameters*
Orbit Height	620 km
Orbit Type	Sun synchronous
Local Time at Ascending Node	10:30
Revisit Time	2 days worldwide

GEOSAT-2 Objectives

GEOSAT-2 was designed to provide a cost-effective and highly responsive service to cope with the increasing need of fast access to sub-metric imagery.

It provides near-real time image tasking, downloading, processing and delivery to the end user.

It has a collection capacity of more than 150,000 km²/day with a two day average revisit time worldwide - one day at mid-latitudes.

GEOSAT-2 Instruments

High Resolution Advanced Imaging System (HiRAIS)

HiRAIS is a 75 cm pan-sharpened multispectral optical instrument with a very-high resolution camera of five spectral channels (one panchromatic, four multispectral).

*HiRAIS Instrument Parameters*
Camera	Pushbroom type imager
Optics	- Korsch telescope of 42 cm aperture diameter (clear aperture of 40 cm diameter) - Focal length = 5.75 m - FOV = 1.2º Optical components in zerodur, fused silica; Hull: CFRP M55J/RS-3
GSD (Ground Sample Distance)	0.75 m PAN-sharpened, 4 m MS @ 590 km altitude
Spectral Bands	Pan: 560-900 nm MS1: 466-525 (blue) MS2: 532-599 (green) MS3: 640-697 (red) MS4: 770-892 (NIR)
FPA (Focal Plane Assembly)	CCD detector with TDI capability
TDI detector exposure levels of the various bands	PAN: 6, 12, 24, 48 Blue, green: 4, 8, 16 Red, NIR: 2, 4, 8
Data Quantization	10 bit
Swath Width	12 km at nadir (24 km in wide area mode)
Data Handling	Lossless compression, real-time encryption
Downlink Data Rate	160 Mbit/s (QPSK)
HiRAIS instrument mass, power	50 kg, ~100 W

GEOSAT-2 Data

DATA DESCRIPTION

ESA is offering, for scientific research and application development, access to Full archive and New Tasking of GEOSAT-2 data upon submission and acceptance of a project proposal. These products are available as part of the GEOSAT.

ESA will support as many high-quality and innovative projects as possible within the quota limit available, therefore, for the "on demand" TPM, only a limited amount of products can be made available to each project.

Collections available:

GEOSAT-2 Full archive and tasking

ESA offers registered users the access to the Online Dissemination server to the following data collections

GEOSAT-2 INSTRUMENTS

GEOSAT-2 DATA