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LOW EARTH ORBIT: DEFINITION, THEORY AND FACTS - In very simple terms, low Earth orbit (LEO) is exactly what it sounds like: An orbit around the Earth with an altitude that lies towards the lower end of the range of possible orbits. This is around 1,200 miles (2,000 kilometers) or less. The majority of satellites are to be found in LEO, as is the International Space Station (ISS).
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SATELLITE NEWS

SECOND FLIGHT OF CROSS-COUNTRY STARLINK DOUBLEHEADER TARGETING THURSDAY SECOND FLIGHT OF CROSS-COUNTRY STARLINK DOUBLEHEADER TARGETING THURSDAY - SpaceX ended January with and will begin February with two Starlink missions. These launches will occur two days apart from separate launch sites. The first such mission — Starlink Group 2-6 — lifted off from Space Launch Complex 4 East (SLC-4E) at the Vandenberg Space Force Base in Californi...   More
(Source: NASASpaceFlight.com - Feb 2)


SOUTH KOREA PICKS VEGA C TO LAUNCH SATELLITE GROUNDED BY RUSSIAN SANCTIONS SOUTH KOREA PICKS VEGA C TO LAUNCH SATELLITE GROUNDED BY RUSSIAN SANCTIONS - South Korea has selected Arianespace’s Vega C rocket to launch a multipurpose imaging satellite, KOMPSAT-6, that has remained grounded due to sanctions imposed on Russia for invading Ukraine. South Korea’s vice minister for science, Oh Tae-seog, announced Feb. 1 that Vega-C was selected for t...   More
(Source: SpaceNews - Feb 2)


GHGSAT: COMMERCIAL SATELLITE WILL SEE CO2 SUPER-EMITTERS GHGSAT: COMMERCIAL SATELLITE WILL SEE CO2 SUPER-EMITTERS - The world's first commercial satellite dedicated to monitoring carbon dioxide from orbit will launch later this year. It will be put up by the Canadian company GHGSat, which already flies six spacecraft tracking methane emissions. The new platform will use the same shortwave infrared sensor bu...   More
(Source: BBC News - Feb 1)


NASA HITS LIMITS OF SPACE STATION UTILIZATION NASA HITS LIMITS OF SPACE STATION UTILIZATION - NASA has effectively reached full utilization of the International Space Station given limitations on crew time and the ability to get cargo to and from the station, an agency official said Jan. 30. Speaking at a meeting of a National Academies committee working on the decadal survey for biologic...   More
(Source: SpaceNews - Feb 1)


DEFUNCT SATELLITE AND ROCKET STAGE NEARLY COLLIDE IN POTENTIAL ‘WORST-CASE SCENARIO’ DEFUNCT SATELLITE AND ROCKET STAGE NEARLY COLLIDE IN POTENTIAL ‘WORST-CASE SCENARIO’ - An old rocket body and military satellite—large pieces of space junk dating back to the Soviet Union—nearly smashed into each other on Friday morning, in an uncomfortable near-miss that would’ve resulted in thousands of pieces of debris had they collided. LeoLabs, a private company that tra...   More
(Source: Gizmodo - Jan 31)


INMARSAT-6 F2 SATELLITE COMPLETES THREE-DAY TRIP TO SPACEX LAUNCH SITE INMARSAT-6 F2 SATELLITE COMPLETES THREE-DAY TRIP TO SPACEX LAUNCH SITE - Inmarsat’s latest geostationary telecoms satellite has arrived at its Florida launch site after a three-day journey from Airbus’ testing facilities in France. An Airbus Beluga plane carrying the 5,500-kilogram Inmarsat-6 F2 (I-6 F2) satellite landed at the Kennedy Space Center on Jan. 27, Air...   More
(Source: SpaceNews - Jan 31)


CREW GETS READY FOR THURSDAY SPACEWALK, KEEPS UP SPACE RESEARCH CREW GETS READY FOR THURSDAY SPACEWALK, KEEPS UP SPACE RESEARCH - he Expedition 68 crew kicked off Monday preparing for a spacewalk to upgrade the International Space Station’s power generation system on Thursday. The orbital residents also researched a variety of space phenomena and packed a cargo craft ahead of its upcoming departure. Astronauts Nicole Mann...   More
(Source: NASA - Jan 31)


SPACEX CREW DRAGON VEHICLE COULD BE USED TO EVACUATE ISS ASTRONAUTS IN AN EMERGENCY SPACEX CREW DRAGON VEHICLE COULD BE USED TO EVACUATE ISS ASTRONAUTS IN AN EMERGENCY - A SpaceX Crew Dragon vehicle currently docked to the International Space Station (ISS) could be used to transport extra crew members back to Earth in the event of an emergency, NASA announced. Following a coolant leak in a Russian Soyuz spacecraft docked to the ISS in December, international spa...   More
(Source: The Verge - Jan 31)


SPACEX LAUNCHES HEAVIEST PAYLOAD ON FALCON 9 ROCKET SPACEX LAUNCHES HEAVIEST PAYLOAD ON FALCON 9 ROCKET - A Falcon 9 rocket thundered off a launch pad at Cape Canaveral before dawn Thursday with 56 Starlink internet satellites, setting a record for the heaviest cargo ever flown on a SpaceX rocket at more than 38,000 pounds. The mission was the fifth launch by SpaceX so far this year, and the 69th lau...   More
(Source: SpaceFlight Now - Jan 30)


WATCH SPACEX LAUNCH 49 STARLINK INTERNET SATELLITES TO ORBIT MONDAY AFTER DELAY WATCH SPACEX LAUNCH 49 STARLINK INTERNET SATELLITES TO ORBIT MONDAY AFTER DELAY - SpaceX plans to launch another set of its Starlink broadband satellites to orbit on Monday (Jan. 30), and you can watch the action live. A Falcon 9 rocket topped with 49 Starlink spacecraft is scheduled to lift off Monday from California's Vandenberg Space Force Base at 11:34 a.m. EST (1634 GMT; ...   More
(Source: Space.com - Jan 30)


INDONESIA’S SURYA SATELLITE-1 SUCCESSFULLY DEPLOYED FROM THE ISS INDONESIA’S SURYA SATELLITE-1 SUCCESSFULLY DEPLOYED FROM THE ISS - This CubeSat was developed by the team of Surya University from the Republic of Indonesia and was selected as the winner in the third round of KiboCUBE program that is run by the Japan Aerospace Exploration Agency (JAXA) and the United Nations Office for Outer Space Affairs (UNOOSA)....   More
(Source: SatNews - Jan 29)


SATELLITE BILLED AS THE ‘FUTURE GPS’ BEGINS KEY TESTS SATELLITE BILLED AS THE ‘FUTURE GPS’ BEGINS KEY TESTS - L3Harris announced Jan. 26 it delivered the Navigation Technology Satellite-3 (NTS-3) to the U.S. Air Force and the spacecraft is now undergoing final tests in preparation for a planned launch in late 2023. NTS-3 is an experiment funded by the Air Force Research Laboratory that will broadcast pos...   More
(Source: SpaceNews - Jan 28)


CHINA WANTS TO LAUNCH OVER 200 SPACECRAFT IN 2023 CHINA WANTS TO LAUNCH OVER 200 SPACECRAFT IN 2023 - China last year performed 64 orbital rocket launches and finished building its own space station, but the country is planning an even busier year for 2023. China's main space contractor and Long March rocket maker, CASC, announced (opens in new tab)on Jan. 18 that it is planning more than 60 laun...   More
(Source: Space.com - Jan 28)


SPACEX LAUNCHES HEAVIEST PAYLOAD ON REUSED ROCKET'S 9TH FLIGHT SPACEX LAUNCHES HEAVIEST PAYLOAD ON REUSED ROCKET'S 9TH FLIGHT - SpaceX's workhorse Falcon 9 rocket lifted its heaviest payload ever into low Earth orbit on Thursday morning (Jan. 26), launching 56 new Starlink internet-beaming satellites. The Falcon 9 first-stage booster that propelled the mission during its ascent through Earth's atmosphere had been used ei...   More
(Source: Space.com - Jan 27)


ASTEROID 2023 BU: SPACE ROCK PASSES CLOSER THAN SOME SATELLITES ASTEROID 2023 BU: SPACE ROCK PASSES CLOSER THAN SOME SATELLITES - Now it's over, we can say it: a biggish asteroid passed by Earth a short while ago. About the size of a minibus, the space rock, known as 2023 BU, whipped over the southern tip of South America just before 00:30am GMT. With a closest approach of 3,600km (2,200 miles), it counts as a close shav...   More
(Source: BBC News - Jan 27)


JAPAN LAUNCHES INTELLIGENCE SATELLITE TO MONITOR WEATHER, NORTH KOREA JAPAN LAUNCHES INTELLIGENCE SATELLITE TO MONITOR WEATHER, NORTH KOREA - Japan successfully launched Thursday a rocket carrying a government intelligence-gathering radar satellite to improve disaster response and monitor developments at North Korean military sites. The No. 46 H2A rocket, operated by Mitsubishi Heavy Industries Ltd., lifted off from the Tanegashima Spa...   More
(Source: Kyodo News - Jan 26)


ROCKET LAB SATELLITE MISSION BLASTS OFF SUCCESSFULLY IN FIRST LAUNCH FROM U.S. SOIL ROCKET LAB SATELLITE MISSION BLASTS OFF SUCCESSFULLY IN FIRST LAUNCH FROM U.S. SOIL - Rocket Lab's launch vehicle successfully delivered three commercial radio satellites into orbit around the Earth, 24 hours after its original scheduled launch was aborted due to bad weather. The company's Electron booster blasted off from NASA's Wallops Flight Facility in Virginia at 6 p.m. EST T...   More
(Source: UPI - Jan 26)


ESA IS NO LONGER PLANNING TO SEND ASTRONAUTS TO CHINA’S TIANGONG SPACE STATION ESA IS NO LONGER PLANNING TO SEND ASTRONAUTS TO CHINA’S TIANGONG SPACE STATION - ESA’s director general says the agency does not have the budgetary capacity nor the political intention to send its astronauts to China’s space station. “We are very busy supporting and ensuring our commitments and activities on the International Space Station where we have a number of int...   More
(Source: SpaceNews - Jan 26)


U.S. TO TEST NUCLEAR-POWERED SPACECRAFT BY 2027 U.S. TO TEST NUCLEAR-POWERED SPACECRAFT BY 2027 - The United States plans to test a spacecraft engine powered by nuclear fission by 2027 as part of a long-term NASA effort to demonstrate more efficient methods of propelling astronauts to Mars in the future, the space agency’s chief said on Tuesday. NASA will partner with the U.S. military's re...   More
(Source: Reuters - Jan 25)


PERSISTENT COOPERATION ON THE SPACE STATION PERSISTENT COOPERATION ON THE SPACE STATION - Ever since Russia started an all-out invasion of Ukraine last February, the space community has wondered what it would mean for the future of the International Space Station. Russia is an essential partner on the station, but at the same time Russia and the West were rapidly unwinding cooperation el...   More
(Source: The Space Review - Jan 25)

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