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Globally, 2.9k objects were placed in orbit in 2024; 3.6k added to debris
Globally, 2.9k objects were placed in orbit in 2024; 3.6k added to debris

Time of India

time4 days ago

  • Science
  • Time of India

Globally, 2.9k objects were placed in orbit in 2024; 3.6k added to debris

A dense cluster of defunct satellites and fragmented metal orbits Earth. (AI-generated image) BENGALURU: Globally, 2024 continued to see a significant number of space launches, with 261 attempts and 254 successes, resulting in 2,578 operational satellites and a total of 2,963 objects placed in orbit, although the total objects placed in orbit is slightly lower than the 3,135 objects from 212 launches in 2023. Revealing these details, the Indian Space Situational Assessment Report (ISSAR) for 2024, also said that renewed interest in lunar missions was evident, with five lunar missions launched during the year. However, 2024 also witnessed three significant on-orbit fragmentation events, including the breakup of a Chinese Long March rocket stage (CZ-6A), which alone added approximately 650 catalogued objects to space debris. These events contributed to a net addition of 702 fragmented objects by year's end. In total, 3,665 objects from launches and fragmentation events were added to the space object population. Simultaneously, a record 2,095 catalogued objects re-entered Earth's atmosphere, including 335 Starlink satellites deliberately deorbited. 'This increase in re-entries was influenced by intense solar activity as the peak of Solar Cycle 25 approached, featuring 18 strong (G3), 20 severe (G4), and 2 extreme (G5) geomagnetic storms that accelerated orbital decay,' the report noted. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like 2025 Top Trending local enterprise accounting software [Click Here] Esseps Learn More Undo Indian endeavors By Dec 31, 2024, India had a total of 136 spacecraft, encompassing government, private, and academic initiatives. The government operated 22 satellites in Low Earth Orbit (LEO) and 31 in Geosynchronous Earth Orbit (GEO). Additionally, two deep space missions—Chandrayaan-2 Orbiter and Aditya-L1 at the Sun-Earth Lagrange point—remained active. The propulsion module of Chandrayaan-3 continued operations in a high Earth orbit after its relocation from lunar orbit in Nov 2023. India conducted five successful launches from Sriharikota: the PSLV-C58 carrying XPoSat, PSLV-C59 carrying Proba-3, PSLV-C60 that launched the SpaDex satellites, GSLV-F14 carrying the Insat-3ds, and the SSLV-D3/EOS-08. Additionally, GSAT-20 and TSAT-1A were launched aboard SpaceX's Falcon-9 from Cape Canaveral. Collectively, these missions added eight Indian satellites, one foreign satellite, and six rocket bodies to orbit. Re-entry & decommissioning Thirty-four Indian rocket bodies re-entered Earth's atmosphere by Dec 2024—five of them in 2024. 'All LVM3 stages have decayed except the one from LVM3 M2 (OneWeb India-1). Only GSLV-F12 and F14 stages remain in orbit,' the report reads. A total of 31 Indian satellites have re-entered so far, with 9 in 2024. Cartosat-2 was the first Isro LEO satellite de-orbited at end-of-life to cut its orbital life from 30 to under four years. Scatsat-1 was deorbited in 12 manoeuvres and passivated on Sept 26, 2024, eight years post-launch. The INS-2B and EOS-7 were also decommissioned before re-entry. Collision avoidance & risk mitigation Isro analysed over 53,000 close approach alerts in 2024. Ten Collision Avoidance Manoeuvres (CAMs) were executed—six in LEO and four in GEO. An additional CAM was performed for Chandrayaan-2, with its orbit manoeuvre advanced to avoid Nasa's LRO. CAMs were fewer than in 2023, thanks to refined analysis and the integration of avoidance within regular orbit manoeuvres. 'In 2024, Isro carried out 681 orbit manoeuvres in LEO, 504 in GEO, 21 in deep space (Chandrayaan-2 and Aditya-L1). Eighty-nine LEO and two GEO manoeuvre plans were revised to avoid post-manoeuvre conjunctions,' the report noted. Also, Launch Vehicle Clearance (COLA) assessments were conducted for all 2024 launches. Only PSLV-C60 was delayed (by 2 mins 15 secs) due to collision risk. All other missions proceeded on schedule. Isro also deorbited its POEM-3 and POEM-4 platforms that carried 9 and 24 payloads, respectively. 'Both upper stages were de-orbited to \~350 km and passivated, limiting their life to around 3 months,' the report noted.

China Launches New Satellite into Space
China Launches New Satellite into Space

Saba Yemen

time4 days ago

  • Science
  • Saba Yemen

China Launches New Satellite into Space

Beijing - (Saba): China successfully launched a Long March-4B carrier rocket on Thursday, placing a new Shijian-26 satellite into space. According to the Chinese news agency Xinhua, the carrier rocket was launched at 12:12 p.m. (Beijing time) from the Jiuquan Satellite Launch Center in northwest China. The satellite is primarily used for national land surveying, environmental management, and other fields, providing information services to support national economic development. This is the 579th mission for the Long March carrier rocket series. Whatsapp Telegram Email Print

China launches new Satellite to test communication technologies
China launches new Satellite to test communication technologies

Saba Yemen

time13-05-2025

  • Science
  • Saba Yemen

China launches new Satellite to test communication technologies

Beijing - Saba: China launched a new communications technology testing satellite into space on Tuesday from the Xichang Satellite Launch Center in Sichuan Province, southwest China. According to the Chinese news agency Xinhua, the launch center announced that the satellite was successfully placed into its planned orbit. It was carried by a Long March-3C rocket, which lifted off at 2:09 a.m. (Beijing Time). The satellite will primarily be used to conduct verification tests for multi-band, high-speed communication technologies. This mission marks the 575th flight of the Long March carrier rocket series. Whatsapp Telegram Email Print

As I cover the world's biggest stories, my mind always returns to that Australian classroom
As I cover the world's biggest stories, my mind always returns to that Australian classroom

The Age

time09-05-2025

  • Politics
  • The Age

As I cover the world's biggest stories, my mind always returns to that Australian classroom

What in the World, a free weekly newsletter from our foreign correspondents, is sent every Thursday. Below is an excerpt. Sign up to get the whole newsletter delivered to your inbox. Rome: Right now, I'm sitting in a quiet corner of Rome, the Vatican's chimney stack just visible in the distance, waiting for the puff of white smoke that will declare a new pope. It's a moment wrapped in tradition, symbolism and centuries of history – the kind of global story I could have only imagined reporting on. The kind that once lived only in the margins of a high school history textbook, brought to life by a woman named Ms Needham. Three and a bit years ago, I left Australia with a suitcase, a passport and a quiet sense of disbelief. I was to cover Europe's biggest stories – the politics, the protests, the wars and the wonders. I've since stood inside a centuries-old chapel as Elizabeth II was laid to rest, and witnessed the pomp of a king's coronation. I've watched firelit protests engulf Parisian streets, heard air raid sirens in Kyiv and wandered the cobbled corners of Berlin, imagining the wall still looming above. In Krakow, I met survivors of the Holocaust. In London, I stood at the door of 10 Downing Street and watched four prime ministers walk in and out. So often, I was struck by deja vu – that eerie sense I'd been here before, only I hadn't. It was Ms Needham who'd taken me there first. As the world awaited smoke and meaning, I found myself returning to a simpler, more personal question: How lucky am I? And more quietly: Did I do Ms Needham proud? It was she who, from a classroom in Traralgon, made me feel the weight of Robespierre's guillotine and the grit of Mao's Long March. She made the horrors of Auschwitz more than just a name in a book, and the bravery of people such as John Monash something I could understand as a teenager. She turned faraway places and long-ago people into something intimate. Real. Not long ago, I came across a thought in a book from Greek philosopher Nikos Kazantzakis that stopped me cold: 'True teachers are those who use themselves as bridges over which they invite their students to cross; then, having facilitated their crossing, joyfully collapse, encouraging them to create bridges of their own.'

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