* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, May 28, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Drew Brees opens Surge Entertainment Center in Metairie hot spot for new businesses – NOLA.com

    Drew Brees Unveils Exciting New Surge Entertainment Center in Metairie!

    Will Gio Stay Or Go On May 27 General Hospital? – Yahoo

    Will Gio Make a Shocking Exit on May 27th’s General Hospital

    First look: Disney shows star villains, Little Mermaid, tech – Yahoo

    Unveiling Disney’s Dark Side: A Sneak Peek at Iconic Villains, The Little Mermaid, and Cutting-Edge Technology!

    Fans Call Out Disney For Cutting Favorite ‘Lilo & Stitch’ Character: ‘It Makes Me Want to Cry’ – Yahoo

    Disney Fans Heartbroken Over the Cut of Beloved ‘Lilo & Stitch’ Character: ‘It Makes Me Want to Cry

    Oh My Girl’s sister group USPEER from WM Entertainment introduces individual members with high-energy clips for ‘Speed Zone’ debut – allkpop

    Get Ready to Meet USPEER: Oh My Girl’s Sister Group Unveils Dynamic Members in ‘Speed Zone’ Debut Clips!

    Ways to save money on entertainment and travel this summer – CBS News

    Smart Strategies to Slash Your Summer Entertainment and Travel Costs!

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    MSE, DXC Technology expand tech partnership – Sports Business Journal

    MSE, DXC Technology expand tech partnership – Sports Business Journal

    Technology Driving Performance: How Elite MA Plans Leverage Data, Care Coordination, and Advanced Analytics to Thrive Amid CMS’s Rigorous 2025 Standards, Black Book – Newswire.com

    Unlocking Success: How Top MA Plans Harness Data and Analytics to Excel Under CMS’s 2025 Standards

    Arqit acquires Ampliphae’s technology IP, enhancing its global encryption portfolio – GlobeNewswire

    Arqit Boosts Global Encryption Portfolio with Strategic Acquisition of Ampliphae’s Technology IP

    Searenergy partners with Tethys Robotics on subsea inspection technology – Windtech International

    Searenergy partners with Tethys Robotics on subsea inspection technology – Windtech International

    China successfully tests new-gen satellite-to-ground data transmission technology – Global Times

    China successfully tests new-gen satellite-to-ground data transmission technology – Global Times

    Wireless Connectivity Technology Market Set to Witness – openPR.com

    Exploring the Future: Wireless Connectivity Technology Market Poised for Remarkable Growth!

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Drew Brees opens Surge Entertainment Center in Metairie hot spot for new businesses – NOLA.com

    Drew Brees Unveils Exciting New Surge Entertainment Center in Metairie!

    Will Gio Stay Or Go On May 27 General Hospital? – Yahoo

    Will Gio Make a Shocking Exit on May 27th’s General Hospital

    First look: Disney shows star villains, Little Mermaid, tech – Yahoo

    Unveiling Disney’s Dark Side: A Sneak Peek at Iconic Villains, The Little Mermaid, and Cutting-Edge Technology!

    Fans Call Out Disney For Cutting Favorite ‘Lilo & Stitch’ Character: ‘It Makes Me Want to Cry’ – Yahoo

    Disney Fans Heartbroken Over the Cut of Beloved ‘Lilo & Stitch’ Character: ‘It Makes Me Want to Cry

    Oh My Girl’s sister group USPEER from WM Entertainment introduces individual members with high-energy clips for ‘Speed Zone’ debut – allkpop

    Get Ready to Meet USPEER: Oh My Girl’s Sister Group Unveils Dynamic Members in ‘Speed Zone’ Debut Clips!

    Ways to save money on entertainment and travel this summer – CBS News

    Smart Strategies to Slash Your Summer Entertainment and Travel Costs!

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    MSE, DXC Technology expand tech partnership – Sports Business Journal

    MSE, DXC Technology expand tech partnership – Sports Business Journal

    Technology Driving Performance: How Elite MA Plans Leverage Data, Care Coordination, and Advanced Analytics to Thrive Amid CMS’s Rigorous 2025 Standards, Black Book – Newswire.com

    Unlocking Success: How Top MA Plans Harness Data and Analytics to Excel Under CMS’s 2025 Standards

    Arqit acquires Ampliphae’s technology IP, enhancing its global encryption portfolio – GlobeNewswire

    Arqit Boosts Global Encryption Portfolio with Strategic Acquisition of Ampliphae’s Technology IP

    Searenergy partners with Tethys Robotics on subsea inspection technology – Windtech International

    Searenergy partners with Tethys Robotics on subsea inspection technology – Windtech International

    China successfully tests new-gen satellite-to-ground data transmission technology – Global Times

    China successfully tests new-gen satellite-to-ground data transmission technology – Global Times

    Wireless Connectivity Technology Market Set to Witness – openPR.com

    Exploring the Future: Wireless Connectivity Technology Market Poised for Remarkable Growth!

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Impending European satellite reentry highlights debris mitigation challenges

February 21, 2024
in Science
Impending European satellite reentry highlights debris mitigation challenges
Share on FacebookShare on Twitter

WASHINGTON — The impending reentry of a defunct European satellite serves as a reminder of the hazards posed by existing objects even as agencies work to mitigate the growth of orbital debris.

The European Space Agency’s European Remote Sensing (ERS) 2 satellite is expected to reenter on Feb. 21 after nearly two decades in orbit. The latest update by ESA Feb. 20 predicted the satellite will reenter at 11:32 a.m. Eastern, with a margin of error of plus or minus 4.61 hours.

The spacecraft, weighing nearly 2,300 kilograms, launched in 1995 to provide Earth science data with a set of instruments that included a radar altimeter and synthetic aperture radar (SAR) mapper. The spacecraft was shut down in 2011 but lacked the propellant to perform a controlled reentry.

Some components of ERS-2 will survive reentry, said Mirko Albani, heritage space program and missions manager for ESA’s Earth Observation program, at a Feb. 13 briefing. That includes four fuel tanks and some internal panels. The largest single component expected to survive reentry is the SAR antenna, weighing 52 kilograms.

The risk of falling debris injuring someone is extremely low, although ESA did not quantify the risks from this specific reentry. Albani added that none of the debris from ERS-2 contains toxic or radioactive materials.

When ESA decided to end ERS-2 operations in 2011, it used the remaining propellant to lower the spacecraft’s orbit from 785 to 573 kilometers, and then passivated onboard systems like batteries to prevent a debris-generating explosion. However, the spacecraft lacked the propellant to go lower, and constraints in the spacecraft’s design would have prevented it from operating below about 560 kilometers, said Tim Flohrer, director of ESA’s Space Debris Office.

ERS-2 complies with earlier debris mitigation guidelines, which call for deorbiting satellites within 25 years of the end of their lives. However, ESA published a new orbital debris mitigation policy in November that, among other measures, reduces the post-mission disposal timeframe from 25 to 5 years.

“It is part of ESA’s zero-debris vision,” said Francesca Letizia, ESA space debris mitigation and reentry safety engineer. Besides the reduced deorbiting timeline, the policy requires spacecraft not deemed to be “low risk” to be prepared for removal through the addition of an interface that would allow an active debris removal mission to grapple it.

The implementation of the new policy is still in a transition phase, she said. “We don’t expect that we will fully implement all the measures that are requested for zero-debris for the missions that are launched now,” but instead progressively implemented through the end of the decade.

“It is a journey that we have just started now, and we will see how this works,” she added.

The new policy also doesn’t apply fully to spacecraft already in orbit. “The applicability of these new rules is not 100%,” said Albani. ESA will establish a space debris mitigation assessment board to review on a case-by-case basis how the rules should apply to those older missions. “For future missions, the target is to achieve zero-debris by 2030 onwards.”

The policy is also based on the experience of other failed missions. ERS-1, a spacecraft nearly identical to ERS-2, malfunctioned in orbit in 2000, stranding it at an altitude of nearly 800 kilometers. Albani said ERS-1 will likely remain in orbit for at least 100 years.

A similar on-orbit malfunction crippled an even larger ESA Earth science mission, Envisat, in 2011, leaving it in a similar orbit. The eight-ton satellite, frequently cited as one of the most hazardous space debris objects other than rocket bodies, is also expected to remain in orbit for a century or more.

“ERS was designed in the ’90s, and we are making much more progress today,” Flohrer said. “But the technology was not available when ERS was designed.”

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SpaceNews – https://spacenews.com/impending-european-satellite-reentry-highlights-debris-mitigation-challenges/

Tags: EuropeanImpendingscience
Previous Post

Software problem blamed for Firefly Alpha mishap

Next Post

“What are you doing?!” Robbie Savage’s shock when pal Dion Dublin HEADBUTTED him during Aston Villa vs Birmingham City clash

May 15 – Ecology proposes new updates to help industry transition to clean semi-trucks – Washington State Department of Ecology (.gov)

Ecology Unveils Exciting New Updates to Accelerate the Shift to Clean Semi-Trucks!

May 28, 2025
Earth’s core is ‘leaking’ gold, study finds – Live Science

Unlocking Earth’s Secrets: New Study Reveals Gold is ‘Leaking’ from the Core!

May 28, 2025
Reading Science Center awarded $175,500 Neighborhood Assistance Tax Credit to double education space – Berks Weekly

Reading Science Center Secures $175,500 Tax Credit to Expand Educational Space!

May 28, 2025

Want to Live Long? Lifestyle Matters More Than Genes – Time Magazine

May 28, 2025
This City Was Named the World’s Fastest-growing Wealth Hub With 156 Centimillionaires and 22 Billionaires – Travel + Leisure

This City Was Named the World’s Fastest-growing Wealth Hub With 156 Centimillionaires and 22 Billionaires – Travel + Leisure

May 28, 2025
Five Things We Learned About…The Creator Economy From D&AD Festival – Creative Salon

Unlocking Insights: Five Key Takeaways on the Creator Economy from D&AD Festival

May 28, 2025
New Portland entertainment venue to begin construction in June – KGW

Exciting New Entertainment Venue Set to Break Ground in Portland This June!

May 28, 2025
Can domestic financing solve the global health funding crisis? – Devex

Can domestic financing solve the global health funding crisis? – Devex

May 28, 2025
Brian Hughes to become NASA Chief of Staff – Florida Politics

Brian Hughes Takes the Helm as NASA’s New Chief of Staff!

May 28, 2025
MSE, DXC Technology expand tech partnership – Sports Business Journal

MSE, DXC Technology expand tech partnership – Sports Business Journal

May 28, 2025

Categories

Archives

May 2025
MTWTFSS
 1234
567891011
12131415161718
19202122232425
262728293031 
« Apr    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (647)
  • Economy (660)
  • Entertainment (21,567)
  • General (15,246)
  • Health (9,702)
  • Lifestyle (663)
  • News (22,149)
  • People (662)
  • Politics (668)
  • Science (15,883)
  • Sports (21,167)
  • Technology (15,648)
  • World (648)

Recent News

May 15 – Ecology proposes new updates to help industry transition to clean semi-trucks – Washington State Department of Ecology (.gov)

Ecology Unveils Exciting New Updates to Accelerate the Shift to Clean Semi-Trucks!

May 28, 2025
Earth’s core is ‘leaking’ gold, study finds – Live Science

Unlocking Earth’s Secrets: New Study Reveals Gold is ‘Leaking’ from the Core!

May 28, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version