Space Situational Awareness news from the Paris Airshow

With the new French space policy to be announced in a few months, and likely including a heavy Space Situational Awareness (SSA) emphasis, a few companies were presenting their solutions at the 2019 Paris Airshow: Sodern is working with cubesat builder Hemeria and electronics expert CS on Hirondelles, a constellation of cubesats to do satellite-to-satellite… Continue reading Space Situational Awareness news from the Paris Airshow

High-altitude Pseudosatellites, the future of Earth observation?

Persistent observation, a persistent problem For all the improvements in spatial and spectral resolution, agility and accuracy, satellites suffer from one serious drawback: they have to follow the laws of orbital mechanics and keep moving around the Earth. This means they cannot hang around an interesting location, to keep a persistent watch on it, except… Continue reading High-altitude Pseudosatellites, the future of Earth observation?

Safran’s high-performance imager for cubesats

Following the previous post on Airbus’ SAR strategy, we will look at another interesting presentation from ESA's 2018 “Φ-week”, this time on an imaging payload for cubesats presented by French company Safran Reosc. Safran Reosc is a long-time supplier of space optics, specializing in polishing and coating telescopes for Thales Alenia Space or Airbus for… Continue reading Safran’s high-performance imager for cubesats

Airbus’ SAR strategy

In November 2018, ESA held a series of talks on the future of Earth observation. It was part of the agency's "Φ-week" event and took place at ESA’s Earth observation center in Frascati, Italy, and the participants ranged from large space primes to small startups. The full recording of the event is available there. This… Continue reading Airbus’ SAR strategy

Detecting hypersonics

Great power competition did not disappear with the end of the Cold War. Nowadays, tensions are rising between the USA with Trump's zero-sum-gain policies, Russia with its aggressive behaviour toward its neighbours, and finally China with its restored military and economic status. This competition takes many forms. Trade wars, alliances and propaganda campaigns are one.… Continue reading Detecting hypersonics

GF-11: How do you say KENNEN in Chinese?

On July 31st, China added a new member to its Gaofen Earth Observation constellation: Gaofen-11 (GF-11) was launched atop a CZ-4B rocket. While the early Gaofen satellites were openly described by their designers, this one is a bit more obscure. It was not in the list of planned Gaofen satellites, and the launch caught observers… Continue reading GF-11: How do you say KENNEN in Chinese?