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  • Michael Krakovskiy 8:58 am on July 28, 2005 Permalink | Reply
    Tags: dollar satellite, Ed Belbruno, Edward Belbruno, Geostationary orbit, Loop-de-Loop Mayor, , Off the shelf software, Proton, Remote sensing, Rex Ridenoure, Satellite, , Spaceflight,   


    Mayor Bloomberg spent 73 million wingwangs on his previous election campaign, already spent additional 23 mil on reelection and is rumored to be willing to go as high as 100. So basically the cost of New York City mayorship is about equivalent to a trip to the moon.

    That much money could probably help a little bit in balancing NYC’s budget or go a long way in building a new kind of a spaceship (or a space elevator even), but maybe once you have that much money you might want to spend it on what gives you the greatest pleasure, and not the most useful application.

    Speaking of circumlunar trips, if the 100 million private trip will ever happen, it will only be a second commercial trip around the Moon. In 1998 a Hughes satellite got stuck in a wrong orbit because the last stage of a Proton booster cut out too early. The insurers wrote it off (200 million, or two NYC mayorships) , but allowed Hughes engineers assisted by two former JPLers, Rex Ridenoure and Ed Belbruno, who came up with the idea, to try something unusual — a lunar swing-by using the satellite’s onboard propellant. They used a trick similar to the one that saved the stranded Apollo 13 astronauts, to bring the satellite through a few figure 8 loops around the Moon and settle it into correct geostationary orbit. Off the shelf software made by AGI was used to make calculations.

    Here is a collection of press releases about the maneuver and here’s a diagram of one of the loops that I dug up in archive.org:

    I actually have a mug from AGI proudly sitting on my desk. Every time I look at it I remember this story about some smart people and good software that saved a 200 million dollar satellite.

  • Michael Krakovskiy 12:59 am on January 14, 2004 Permalink | Reply
    Tags: , , , Manned mission to Mars, Mars exploration, Mars mission, Mars program, , Spacecraft, Spaceflight   

    An Old Dream or One Of These Days, To the Mars, Alice! 

    LJ user avva mentioned in his journal that he is ashamed of the fact that there was never a manned Mars mission. Also our beloved overlord keeps talking about a Mars mission. So on my lunch break I dug around in my email and found an old dream of mine that never made Jesse Reclaw’s Slow Wave:

    There I was on Mars with four other astronauts. I fell into a red sand dune (kind of like quicksand). I remember hating the guts of some other astronaut, who helped me out of it, because I could have easily gotten out myself. It just made me look bad on TV.

    I was also tremendously pissed off at NASA. You see, their moronic plan of getting us off the planet was this: one astronaut would have a small rocket pack (and that wasn’t me). The others would grab his arms and legs, he would turn on the rocket pack and we would fly into low orbit. There we would find a small refueling craft (something like a barrel of fuel). With that fuel we would be able to reach our spacecraft in higher orbit. Faster, cheaper, better my ass — I thought.

  • Michael Krakovskiy 1:34 pm on March 9, 2003 Permalink | Reply
    Tags: Cassini, Cassini–Huygens, Giovanni Domenico Cassini, Huygens, Orbiter, Spaceflight, Titan   

    Can This Thing Get HBO? 

    From Cassini Orbiter Engineering Subsystems:
    Cabling subsystem:

    I wonder if any of the engineers who worked on Cassini/Huygens wrote memoirs. I bet it would be fascinating reading.

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