Ostatnie wiadomości
9 i 10 maja miały być wykonane dwa duże manewry obniżenia aposelenium (do 2200 i 200 km). Nigdzie nic na ten temat nie znalazłem, czy może ktoś coś wie?
Na unmanned nic nie ma?
.Amazing as the aurora this weekend were, an active Sun has a cost to astronomy. Here is the Hubble Space Telescope's lifetime altitude (thanks @planet4589) with marks for boosts from Space Shuttle servicing missions. In orange are sunspots, a proxy for the Sun's activity. (1/6)https://x.com/jotajotahermes/status/1789732990655820212
Even though HST orbits 50x higher than a commercial airliner, it is still in Earth's atmosphere, where drag acts as an external force (friction) to bring it back to the ground. A more active Sun accelerates the drag bringing HST back to Earth. (2/6)
HST has not had a boost since the last Space Shuttle servicing mission (SM4) 15 years ago. In the past year, as the Sun's activity has picked up, HST's orbit has dropped more than 12 km. It will almost certainly be orbiting below 500 km by 2026. (3/6)
HST is the size of a school bus, large enough that if its reentry is not controlled there is a decent chance that it could kill someone. At some point NASA will have to make a call on when to pull HST down over an ocean in a controlled reentry. (4/6)
In 2022 SpaceX got lots of press for a possible project to fly a mission to boost HST's orbit and extend its life. I've heard from someone in the know at STScI that this project is effectively dead, an ebb in the whim of our tech-bro overlords. (5/6)
The aurora look pretty awesome from space, too; here is a 2011 image from the ISS, which orbits the Earth even lower than HST. So if you missed out on the aurora, here's some consolation -- too much space weather would put a premature end to Hubble! (6/6)
It turns out, we have until 2028 or so to figure this out; that’s the earliest that it would enter the atmosphere without guidance.https://www.quora.com/How-does-the-Hubble-telescope-maintain-its-orbit-without-the-STS-helping-maintain
That would be a problem, as if it enters thicker atmosphere, it’ll deorbit and crash who knows where. That would be a huge liability for America.
The two options would be to boost it up, which would probably take a manned mission, OR just deorbit it in a controlled fashion, which means burn it up over an ocean where presumably it wouldn’t hit anyone major.
9 i 10 maja miały być wykonane dwa duże manewry obniżenia aposelenium (do 2200 i 200 km). Nigdzie nic na ten temat nie znalazłem, czy może ktoś coś wie?
.No to się już nie zgadza
Ale to też ładne pożegnanie z grupą 3664 - mam nadzieję, że na dwa tygodnie! Birthplace and date: Born May 10, 1963 in Bracebridge, Ontario.https://groups.google.com/g/sci.space.history/c/tVKQZl0K0aI
Married to Christine Hodge, 31 July 1999.
Education: Attended High School in Renfrew, Ontario, and graduated from the Royal Military College of Canada with a Bachelor of Engineering Physics in 1985.
He obtained a Masters of Electrical and Computer Engineering from the same institution in 1991.
He is currently in his second year of an Masters of Business Administration degree with the University of Ottawa.
(Class of 2000)
Marital status: Getting married in July 1999.
Recreational interests: Major McKay's interests include gliding, weight lifting, cycling, swimming. sailing, skiing, hiking, soccer and softball.
He also enjoys photography, reading, chess and woodworking.
Experience: From 1986-1987, he worked as a Software Support Officer with the Aircraft Maintenance and Engineering division of the Canadian Forces Base, Cold Lake, Alberta.
In 1987, he was named Mechanical Support Officer in command of 145 people and was later appointed to the position of CF5 Repair Officer, responsible for the periodic inspection of the CF5 fleet, a position which he held until 1991.
After completing his postgraduate degree, Major McKay was employed as a lecturer with the College Militaire de Saint-Jean, teaching courses in Logic Circuit Design and Electronic Instrumentation and Microprocessor Systems Design.
Then a Captain, Major McKay was selected in July, 1992, as one of four astronauts who will train as mission specialists for the Space Shuttle program or to contribute to the International Space Station Project
From August 1993 until early February 1994, Major McKay was involved with a shuttle payload that flew on February 3, 1994.
He provided Space Vision System support to the Wake Shield Facility, a free flying payload that was released from the Shuttle.
In February 1994, Major McKay was one of four astronauts who participated in the Canadian Astronaut Program Space Unit Life Simulation (CAPSULS), a 7-day simulated space mission which was proceeded by several weeks of intensive training.
In early 1995, Major McKay resigned from the Astronaut Corps for medical reasons. He has remained in the employment of CAP as an engineer and was actively involved in mission support activities.
He was appointed Project Manager for the Canadian Space Vision System and was the Mission Manager for the STS-85 mission.
In October 1997, Major McKay left CSA to return to active military service with the Directorate of Space Development within the National Defence Headquarters in Ottawa.
There he is responsible for the human resource and education development for the Canadian Armed Forces Military Space Programme.
Major McKay regularly makes presentations to schools and technical audiences.
He is also teaching a graduate level course in Advanced Space Studies in the Mechanical Engineering Department of Carelton University.
