Log inSign up
user avatar
EU SST
@EU_SST
EU Space Surveillance and Tracking. The EU SST activities have received funding from the European Union programmes; more info at eusst.eu.
eusst.eu
Joined October 2019
202
Following
7,904
Followers
  • Pinned
    user avatar
    EU SST
    @EU_SST
    12h
    🎉#EUSST marks 🔟 years ensuring space safety and sustainability Since starting service provision on 1 July 2016, EU SST has grown into an essential capability that protects space infrastructure, facilities and services. Read more: eusst.eu/newsroom/news/… #EUSpace
    496
  • user avatar
    EU SST
    @EU_SST
    May 8, 2021
    Replying to @EU_SST
    ⚠️Last update before re-entry: #EUSST estimates that object CZ-5B R/B will re-enter the Earth’s atmosphere on 2021-05-09 at 02:32 UTC ± 139min. This map shows the ground track. Read more: eusst.eu/newsroom/eu-ss… #Tianhe #LongMarch5B
  • user avatar
    EU SST
    @EU_SST
    Nov 4, 2022
    Replying to @EU_SST
    ⚠️Update: #EUSST’s latest autonomous predictions give a re-entry window of object #CZ5B of 2022-11-04 08:50:36 UTC ±31 min. Read more: eusst.eu/newsroom/eu-ss… #LongMarch5B
  • user avatar
    EU SST
    @EU_SST
    Apr 9, 2021
    Replying to @EU_SST
    ⚠️UPDATE: #EUSST’s network of sensors has only detected a single object or echo at passes over three radars after close approach. Most likely, the collision between SL-8 R/B and OPS 6182 did not take place. We will continue observing the objects to confirm this assessment.
  • user avatar
    EU SST
    @EU_SST
    May 7, 2021
    ⚠️Update: the re-entry window of object CZ-5B R/B has narrowed down to 2021-05-09 00:24 UTC ±361 min. #EUSST sensors keep monitoring the object closely and Operations Centres are performing analyses. Stay tuned! Read more: eusst.eu/newsroom/eu-ss… #Tianhe
  • user avatar
    EU SST
    @EU_SST
    Apr 9, 2021
    Replying to @EU_SST
    ⚠️Latest update: according to #EUSST the close approach between #space objects SL-8 R/B and OPS 6182 remains stable in geometry and in Scaled Probability of Collision. Miss distance would be ~21m and Scaled PoC over 20%. This should be the last estimate until TCA.
  • user avatar
    EU SST
    @EU_SST
    May 8, 2021
    Replying to @EU_SST
    ⚠️Update: the re-entry window of object CZ-5B R/B has narrowed down to 2021-05-09 02:11 UTC ±190 min. #EUSST keep monitoring the event. Stay tuned! Read more: eusst.eu/newsroom/eu-ss… #Tianhe
  • user avatar
    EU SST
    @EU_SST
    Nov 4, 2022
    Replying to @EU_SST
    ⚠️Update: the re-entry window of #CZ5B has narrowed down to 2022-11-04 09:38:39 UTC ±111 min. #EUSST contributing sensors keep monitoring the object closely & Operations Centres are performing analyses. Stay tuned for more updates. Read more: eusst.eu/newsroom/eu-ss… #LongMarch5B
  • user avatar
    EU SST
    @EU_SST
    Jul 30, 2022
    ⚠️Last update before re-entry: #EUSST estimates that object CZ-5B will re-enter the Earth’s atmosphere on 2022-07-30 at 17:24 UTC ± 58min. This map shows the ground track. Read more: eusst.eu/newsroom/eu-ss… #CZ5B #LongMarch5B
  • user avatar
    EU SST
    @EU_SST
    Apr 9, 2021
    Replying to @EU_SST
    ⚠️UPDATE: independent confirmation from two additional #EUSST sensors. Both objects have been observed with one single echo.
  • user avatar
    EU SST
    @EU_SST
    May 4, 2021
    🇪🇺#EUSST is monitoring the re-entry of large space object CZ-5B R/B (2021-035B), the core stage of the rocket that launched the #Tianhe space station. Our sensor network is observing the object in order to narrow down the re-entry window expected in the coming days.
  • user avatar
    EU SST
    @EU_SST
    Apr 8, 2021
    Replying to @EU_SST
    ⚠️Update: according to #EUSST's latest estimates using data from its surveillance radars, the close approach between #space objects SL-8 R/B & OPS 6182 expected by tomorrow will have a miss distance under 10m and a Scaled Probability of Collision over 20%! +updates to follow soon
  • user avatar
    EU SST
    @EU_SST
    Apr 7, 2021
    🇪🇺#EUSST contributes to protecting the safety & security of European economies, societies & citizens. Our Operations Centres are monitoring a potential collision of two large, inactive #space objects. EU #SST estimates a probability above 1% that they may collide in two days👇
  • user avatar
    EU SST
    @EU_SST
    May 10, 2025
    Replying to @EU_SST @defis_eu and 10 others
    Based on #EUSST analysis & info and no-shows during passes, EU SST confirms that object Cosmos-482 Descent Craft decayed within the last estimated re-entry window (2025-05-10 06:04 UTC ±20 min.). Thank you for following our updates. eusst.eu/newsroom/eu-ss… #EUSpace #Cosmos482
    34K