Celebrating 20 years of ERS
These images of Rome and its surroundings were acquired by ERS-1 and ERS-2 during their long service around the globe, providing valuable information to the scientific community for 20 years. The first image was taken in 1991 (the first ERS-1 acquisition), followed by a 2001 ERS-2 one (celebrating 10 years of ERS) and ending with the last orbit acquired by ERS-2 in 2011 (celebrating 20 years of ERS).
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