EIRSAT-1

Follow the team @ucd_physics @ucdscience & @ucdEngArch building Ireland's first satellite @ucddublin through the @ESA__Education Fly Your Satellite! programme

[SatNOGS @SatNOGS]

For years, @SatNOGS has been tracking #EIRSAT-1 as it made its journey through space.
@EIRSAT1 has now re-entered, & the last reception was by station 342 - EA5WA Pobla Llarga.
Great job, EIRSAT-1 team! We're thrilled to have been part of this mission! https://t.co/uivFbwZtzZ

[ESA Education @ESA__Education]

🛰️ @EIRSAT1 sent its final beacons on 4 September, before re-entering Earth’s atmosphere marking the end of Ireland’s first satellite mission. 🌍

🎓 More than 50 students from @ucddublin contributed to this pioneering project, made possible through the support of the ESA Education programme. A proud milestone for student-led space exploration! 🎉

🔗 https://t.co/FvgSszsqLT

📸: University College Dublin

[EIRSAT-1 @EIRSAT1]

@pe0sat Thank you for all your hard work on behalf of EIRSAT-1!

[EIRSAT-1 @EIRSAT1]

Some time between 15:24 and 16:06 UTC today, most likely over the Pacific ocean, EIRSAT-1 lost its battle with gravity and contact was lost.

[EIRSAT-1 @EIRSAT1]

The final beacons showed temperature increasing and spin-rate at more than 85 degrees/second. Thanks to everyone @SatNOGS who tracked the spacecraft in its final days. @ucddublin @ESA__Education

[EIRSAT-1 @EIRSAT1]

Our final pass over Ireland started at 12:21:06 UTC - Westport and Dingle 😍
@WildNephin @KerryDarkSky @wildatlanticway. @SatNOGS reports still coming in from Australia #notdeadyet

[EIRSAT-1 @EIRSAT1]

Thanks to @DeptEnterprise and @Entirl for your support. Minister Alan Dillon TD: “I am very proud that the mission was supported by my Department, through our membership of ESA. EIRSAT-1 demonstrates the value of membership of @esa for a small country, such as Ireland"

[Department of Enterprise, Tourism and Employment @DeptEnterprise]

🚀 Our Department is very proud to have funded the @esa ‘Fly Your Satellite’ programme which supported the EIRSAT-1 mission. Congratulations to everyone involved in this pioneering project.

Ireland’s first satellite, EIRSAT-1, has completed its mission orbiting the Earth. 🌍 The CubeSat, which was built and launched by students and faculty of @ucddublin, will de-orbit in the next day or two.

EIRSAT-1 was launched into space in 2023 and it carried three onboard payloads for its low-Earth orbit mission which conducted three experiments, managed by students and staff at mission control in UCD. The mission also gave Irish companies a unique platform to develop components that were used on board and strengthen our national capabilities in space research and technology. 🛰️

Find out more 🌐 https://t.co/2NxGgR84UP

@Entirl, @enbio_eu, @IrishResearch, @onsemi

[ESA Education @ESA__Education]

🌍✨ This week, Ireland’s first satellite, EIRSAT-1, completes its incredible journey as it re-enters Earth’s atmosphere.

🎓 Developed by students and staff at @ucddublin through ESA Education’s Fly Your Satellite! programme, EIRSAT-1 marked the historic achievement as Ireland’s first satellite.

📺 Let’s relive its inspiring journey — watch the full story below and travel through the development of EIRSAT-1 👇

🔗 https://t.co/DQPaiWAJ60

📸: EIRSAT-1 team

[Paxi @Paxi_ESAKids]

✨ Hi explorers, Paxi here! 👽

🛸 On my travels above your beautiful planet, I bumped into @EIRSAT1 - Ireland's first satellite! Did you know it was built and launched by students at @ucddublin with support from ESA Education? But that’s not the only amazing thing... I noticed some words on the satellite - to my surprise, it was a poem! 🤩

What a magical moment: reading poetry in orbit, written by young people from across Ireland. 🌍✨

This week I will say farewell to EIRSAT-1. With its mission complete, it’s time for this amazing CubeSat to de-orbit. 🛰️

Explore the poem here: https://t.co/NNs2Fv3HWK

📸: EIRSAT-1

[David Trolinger N5ZKK @david_trolinger]

EirSat-1 still in orbit 2025/09/04 06:00UTC but no decodes.

[Roland Zurmely @PY4ZBZ]

EIRSAT-1 over Brazil. Close to decay ...

[F1EFW_Gilles @Gilles_Platret_]

@EIRSAT1 will soon re-enter Earth's atmosphere!
It continues to send its telemetry data as well as messages to radio amateurs around the world.
Today, Oscar Wilde quotes: "We are all in the gutter, but some of us are looking at the stars."
https://t.co/jDfFXCTTSn

[VU2JEK_Nitin @nitin_vu2jek]

EIRSAT-1 Decaying at 162 kms . Strong signal
@EIRSAT1 @SatNOGS

[South Dublin Radio Club @SDRadioClub]

@ucddublin @LorraineHanlon1 @jaaaaam @UCD_Cspace @EIRSAT1 @ucdscience @UCD_physics @esa Congratulations on #Mission accomplished. And well done on the Trojan amount of outreach and public engagement...
#Science communication at its best
#EIRSAT1

[EIRSAT-1 @EIRSAT1]

Still receiving #eirsat1 loud and clear over @ucddublin this morning at approx 160km altitude. Thanks to the radio amateur community @SatNOGS @LibreSpace_Fnd for tracking and sharing reports in these final hours of the mission

[Merkouris SV2HWM @SV2HWM]

2025-09-02 21:43 UTC - Nice quotes by Oscar Wilde and Amelia Earhart received from the decaying 🇮🇪 🛰️ @EIRSAT1. Altitude ~230 km.
'We are all in the gutter, but some of us are looking at the stars' - Oscar Wilde
'The most effective way to do it is to do it' - Amelia Earhart

[ESA Education @ESA__Education]

✨ This week, we will say a very fond farewell to @EIRSAT1 — Ireland’s first satellite! 🛰️

EIRSAT-1 is a 2-unit CubeSat built and launched by students and faculty at the @ucddublin with the support of ESA Education through our Fly Your Satellite! programme. 🎓

🚀 Discover the full mission story 👇

[University College Dublin @ucddublin]

🛰️🫡 Mission Accomplished: EIRSAT-1 to deorbit after two year historic journey

Ireland’s first satellite EIRSAT-1 has completed its mission orbiting the Earth and will de-orbit in the coming days.

The mission trained more than 50 students, primarily postgraduate researchers in physics, engineering, computer science and mathematics. This included 13 PhD students.

The launch of the CubeSat, built by students and faculty at University College Dublin under the guidance of the ESA - European Space Agency (ESA), in 2023 marked a major milestone in Ireland’s space journey.

Its success demonstrated the country’s ability to design, build, and operate a satellite, strengthening national expertise and laying the foundation for future growth in the Irish space sector.

“Although it's a sad day for the team, we're proud that EIRSAT-1 has reached the end of its mission, having achieved all of its goals,” said Professor Lorraine Hanlon, Director of the EIRSAT-1 project and UCD C-Space, the Centre for Space Research.

“We're keen to apply what we have learned, building new missions and collaborating to grow Ireland's space sector. I want to acknowledge the achievements of everyone who played a role on the team, and worked incredibly hard to make it such a success.”

[Merkouris SV2HWM @SV2HWM]

2025-09-03 21:22 UTC. Probably, my last reception from the decaying 🇮🇪 🛰️ @EIRSAT1 on 437.100 MHz, in GFSK 9600 bd, at an altitude of ~190 km. Five frames were decoded live and uploaded to the @SatNOGS db. Thanks Freddy from @LibreSpace_Fnd for constantly updating the TLE set!

[David Trolinger N5ZKK @david_trolinger]

EIRSAT-1 Ireland's First Satellite with an interesting message tonight at EM00. Looks like the TLE is way behind actual as the satellite speeds up.

"Hey! What’s this thing suddenly coming toward me very fast? Very, very fast."