ESA_CHEOPS

@ESA_CHEOPS

ESA’s CHaracterising ExOPlanet Satellite. Launched 2019 to study known planets orbiting nearby bright stars 💫🛰️ In partnership with🇨🇭 & 10 ESA Member States

In orbit! 700km above Earth  
Vrijeme pridruživanja: ožujak 2017.

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  1. Prikvačeni tweet
    29. sij

    This morning, at 07:38 CET, one of the major moments of truth arrived for , when the telescope baffle cover was finally opened ✅ This mission-critical operation allowed the instrument to see the sky for the first time 👍 Details 👉

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  2. proslijedio/la je Tweet
    1. velj

    This week we opened the cover of . Pointing to the values that say 'OPEN' at the mission operations center!

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  3. proslijedio/la je Tweet
    1. velj

    Soon, our mission will start studying as they transit across the disc of their host star 💫 Until then, enjoy this photo of the satellite transiting in front of a bright star – as seen from Earth 👇😉

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  4. proslijedio/la je Tweet
    1. velj

    In case you missed it, the cover has now opened! Here is what it looks like for real - taken during a test in our clean room a few years ago.

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  5. proslijedio/la je Tweet
    31. sij

    Exoplanets now! Andrew Collier Cameron now taking about ⁦⁩ and the quest to find other worlds.

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  6. 31. sij

    Meanwhile, astronomers have been trying to spot in the sky! In this 3-min exposure 👇 taken 14 Jan with the Telesto 60cm telescope near Geneva observatory, Cheops is seen transiting the bright star eta Aurigae✨🛰️🔭 📷UNIGE/Telesto/G.Deprez, M.Marmier, S.Fraud, N.Billot

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  7. 31. sij

    Launched in December, is undergoing in-orbit commissioning. Once ready, it will observe bright stars known to host as the planets transit across the star's disc. From the dip in brightness, it will measure very precisely the sizes of these exoplanets ✨🪐📏🛰️

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  8. proslijedio/la je Tweet
    29. sij

    🎥 Timelapse video of the preparations for the launch of , our 'Characterising Exoplanet Satellite', at Europe’s Spaceport in Kourou, French Guiana. The video spans about three weeks, from 28 November 2019 to liftoff on 18 December

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  9. 29. sij

    ...and for a refresher about the of and how it will deepen our understanding of , check out this introduction to the mission 👇 in form 😉

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  10. 29. sij

    Get acquainted with the various elements on board by building your own paper model of our brand new watcher 🖨️✂️🛰️ Download 👉 How-to video 👉

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  11. 29. sij

    Implemented in partnership with Switzerland & including important contributions from 10 other ESA member states, was launched from Kourou, French Guiana, on 18 December 2019. 🎥Relive the exciting moments of the launch campaign leading to liftoff:

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  12. 29. sij

    Cheops is ESA’s first mission dedicated to the study of 😎 It will observe bright stars that are already known to host planets, measuring minuscule brightness changes due to the planet’s transit across the star’s disc. More about 👉

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  13. 29. sij

    Opening the cover is a major step along the path towards routine observations. In coming weeks, the in-orbit commissioning team will test the instrument’s detector & its performance, making sure it behaves as required to tackle the mission’s ambitious science

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  14. 29. sij

    The cover can be compared to the lens cap of a camera. It covered the front end of the telescope baffle (which shields the telescope from straylight) and protected the instrument during testing, launch & initial phases of in-orbit commissioning 📷👉

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  15. proslijedio/la je Tweet
    29. sij

    Our Characterising Satellite opens its eye to the sky 👀🛰️✨ Six weeks after the launch of , the telescope cover was opened as part of the mission’s in-orbit commissioning 👍 Details:

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  16. 24. sij
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  17. 14. sij

    This image 👇 is a 6-minute long exposure, but it only took 400 milliseconds for to cross the small field of view (~12 arcmin across) The estimated magnitude of the satellite is r'=7.8±0.3. You can also try and spot it with binoculars (40mm+) under good conditions! 👀

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  18. 14. sij

    Hello 👋 Yes, the trail in this starry image, taken on 11 January using the SAINT-EX telescope in Mexico, is the Characterising Satellite ✨🛰️✨ 📷 SAINT-EX team   👉

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  19. proslijedio/la je Tweet

    🔭🪐 Meet Dr Kate Isaak, exoplanet explorer and Project Scientist for . Isaak has developed instrumentation for several space missions 🛰🚀 + studied the most distant interstellar dust in the universe ✨. New page:

    , , i još njih 3
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  20. 10. sij

    Update from in-orbit commissioning: the instrument was activated on Wed 8 January & took its first 'dark image' yesterday. Everything is operating as planned 👍 The telescope cover is still closed & will be opened by end January. Details:

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