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We always ensure that our satellites are well below the UN 25 year guideline, and we will never launch a satellite into an orbit with a predicted lifet

by grinich 12y ago

We always ensure that our satellites are well below the UN 25 year guideline, and we will never launch a satellite into an orbit with a predicted lifetime greater than 25 years. https://www.planet.com/pulse/keeping-space-clean-responsible-satellite-fleet-operations/ https://www.planet.com/pulse/keeping-space-clean-responsible...

fixxer 12y ago
Thanks for the link! I was looking for some papers on the topic (small satellites & space debris). Here are a few that popped up (not sure if CubeSats are 100% apples for apples): http://archive.ists.or.jp/upload_pdf/2011-r-36.pdf http://archive.ists.or.jp/upload_pdf/2011-r-36.pdf http://www.esa.int/Our_Activities/Space_Engineering_Technology/Clean_Space/Space_debris_mitigation http://www.esa.int/Our_Activities/Space_Engineering_Technolo... http://www.sciencedaily.com/releases/2014/09/140930090447.htm http://www.sciencedaily.com/releases/2014/09/140930090447.ht... Small satellites raise some great systems questions... certainly outside my expertise, but interesting.
- qiqing 12y ago
  A couple more papers on the topic: http://www.sciencedirect.com/science/article/pii/S0273117711005783 http://www.sciencedirect.com/science/article/pii/S0273117711... http://www.sciencedirect.com/science/article/pii/S0273117710006964 http://www.sciencedirect.com/science/article/pii/S0273117710... Note the authors include the founder(s) from back when they were at NASA.
classicsnoot 12y ago
Question for you sir[?]: is it possible to build a massive radio antenna array outside of the atmosphere using a widely spread out constellation of satellites? Like, something of a dimension and intensity that would be impossible/unsafe to do on the earth's surface? My apologies if this is a dumb question...
- vonklaus 12y ago
  I am not GP, but if you are interested in satellite communication networks, spaceX and google have partnered to do something similar. It will have some extra-terrestrial advantages like needing less hops to get to destination and light moves faster in a vacuum. link: http://spacenews.com/spacex-google-matchup-sets-up-satellite-internet-scramble/ http://spacenews.com/spacex-google-matchup-sets-up-satellite...
  - classicsnoot 12y ago
    This may sound crazy, but i was talking about a transmitter and i was thinking about it being pointed outward, not inward. I am of the opinion that crafted radio signals are the easiest and most efficient way to tell 'whoever' that someone is here and they know math. The constellation would serve two purposes: let asteroid miners listen to NPR outside of the control of NASA or Weyland-Yutani and broadcast a signal to the universe that we are here. I will not be offended by the wave of chortles. Also, i imagine a radio telescope that stretches 300,000 miles might be able to pick up a lot we cannot see.
    - mirimir 12y ago
      They already know that we're here. That may not be good.
      - classicsnoot 12y ago
        I have heard this notion and, respectfully, i think it is bonkers. If a super advanced civilization wants to pulp us, i doubt they will need any help in finding us [as they are already watching the '38 Olympics and I Love Lucy. If, alternatively, they are some nomadic space dickheads looking to pick a fight, than i can think of no better way to prove that we are ready to be an interstellar species. Finally, if they are some insectoid space roaches that can hurl meteors across space at our little marble... good. I want to be a Starship Trooper. In any of these situations, humanity will become unified and space marines become a reality. Yayzors. I know this is a lot of silly conjecture, but the thought of multidimensional super beings having it in for us is as far-fetched as an invisible Jew in the sky who writes down everything you do and hates gay folks.

by grinich 12y ago

fixxer 12y ago

Thanks for the link! I was looking for some papers on the topic (small satellites & space debris). Here are a few that popped up (not sure if CubeSats are 100% apples for apples): http://archive.ists.or.jp/upload_pdf/2011-r-36.pdf http://archive.ists.or.jp/upload_pdf/2011-r-36.pdf http://www.esa.int/Our_Activities/Space_Engineering_Technology/Clean_Space/Space_debris_mitigation http://www.esa.int/Our_Activities/Space_Engineering_Technolo... http://www.sciencedaily.com/releases/2014/09/140930090447.htm http://www.sciencedaily.com/releases/2014/09/140930090447.ht... Small satellites raise some great systems questions... certainly outside my expertise, but interesting.

qiqing 12y ago
A couple more papers on the topic: http://www.sciencedirect.com/science/article/pii/S0273117711005783 http://www.sciencedirect.com/science/article/pii/S0273117711... http://www.sciencedirect.com/science/article/pii/S0273117710006964 http://www.sciencedirect.com/science/article/pii/S0273117710... Note the authors include the founder(s) from back when they were at NASA.

classicsnoot 12y ago

Question for you sir[?]: is it possible to build a massive radio antenna array outside of the atmosphere using a widely spread out constellation of satellites? Like, something of a dimension and intensity that would be impossible/unsafe to do on the earth's surface? My apologies if this is a dumb question...

vonklaus 12y ago
I am not GP, but if you are interested in satellite communication networks, spaceX and google have partnered to do something similar. It will have some extra-terrestrial advantages like needing less hops to get to destination and light moves faster in a vacuum. link: http://spacenews.com/spacex-google-matchup-sets-up-satellite-internet-scramble/ http://spacenews.com/spacex-google-matchup-sets-up-satellite...
- classicsnoot 12y ago
  This may sound crazy, but i was talking about a transmitter and i was thinking about it being pointed outward, not inward. I am of the opinion that crafted radio signals are the easiest and most efficient way to tell 'whoever' that someone is here and they know math. The constellation would serve two purposes: let asteroid miners listen to NPR outside of the control of NASA or Weyland-Yutani and broadcast a signal to the universe that we are here. I will not be offended by the wave of chortles. Also, i imagine a radio telescope that stretches 300,000 miles might be able to pick up a lot we cannot see.
  - mirimir 12y ago
    They already know that we're here. That may not be good.
    - classicsnoot 12y ago
      I have heard this notion and, respectfully, i think it is bonkers. If a super advanced civilization wants to pulp us, i doubt they will need any help in finding us [as they are already watching the '38 Olympics and I Love Lucy. If, alternatively, they are some nomadic space dickheads looking to pick a fight, than i can think of no better way to prove that we are ready to be an interstellar species. Finally, if they are some insectoid space roaches that can hurl meteors across space at our little marble... good. I want to be a Starship Trooper. In any of these situations, humanity will become unified and space marines become a reality. Yayzors. I know this is a lot of silly conjecture, but the thought of multidimensional super beings having it in for us is as far-fetched as an invisible Jew in the sky who writes down everything you do and hates gay folks.