CBL,
It finally clicked. Thanks much for the help. For some reason, when you said click on the dimension, I kept thinking well, its along the x-axis dimension and it finally clicked that you meant the actual dimension. Then I go back and reread the help file and it says the exact same thing...
Alright,
I'm having a somewhat similar problem and hopefully people will see this. I'm trying to create a part that looks somewhat like a fresnel lens. I have a base rectangular extrude 34" long x 1" tall x 10" deep (I prefer metric, but the optics guys gave me this to work with.)
I need to...
RMW,
I do hope that helps. I reread your initial post and another item that STK might help you with is that you can set up mobile ground stations (your car) and then have STK compute the AZEL (azimuth and elevation) that you would need to point an antenna to in order to track the satellite...
RMW,
There is a site online that will show you the two line element set of the Sirius satellites that is updated once or twice a day. Its available from the Norad tracking stations. Here's a link to the tracking data for all unclassified objects that Norad tracks...
EM,
If you go to this page and click to the "Planetary Exploration Robotics" topic, there are papers described 10 - 15 NASA studies that have been done in microbots. Maybe something there will be along the lines you are looking for.
http://www.niac.usra.edu/studies/
Brian
Brian...
QwikM,
Here's a link showing the current sats in geo. Look through to find the ones closest in longitude to your site.
http://www.satsig.net/sslist.htm
Brian Lewis
The Aerospace Corporation
http://www.aero.org/
There is a combination of equations for launch windows in Space Mission Analysis and Design by Wertz and Larson and in Fundamentals of Astrodynamics and Applications by Vallado. If you don't have access to those books, let me know and I may be able to type up a short description of what they...
Afternoon,
I am trying to find a function that I can use through Excel, with or without VBA (I'm assuming that I will need VBA) that will return the computer's current IP address. For the application that we are developing, the IP address may or may not be dynamic (some users on dial-up...
Gearguru,
I tried doing the same technique you did and got bogged down trying to solve three equations with four unknowns. I wasn't sure if I had done the math incorrectly, or if I needed to try to find another equation to use, but I would be interested in seeing your friends analysis. I'm at...
The following website has an explanation for the modified 4/5 digit NACA series.
http://www.aerospaceweb.org/question/airfoils/q0041.shtml
Cheers
Brian Lewis
The Aerospace Corporation
http://www.aero.org/
I would first recommend Space Mission Analysis and Design by Wertz and Larson as recommended above. Fundamentals of Space Systems by Pisacane and Moore is also very useful.
Brian Lewis
The Aerospace Corporation
http://www.aero.org/
http://www.astroexpo.com/ has some small reaction wheels listed as well along with some product sheets.
Brian Lewis
The Aerospace Corporation
http://www.aero.org/
Here's a page with a few more problems in using motors in space, mainly focusing on designing circuits to resist thermal breakdowns. The company that posted this does a lot of work with NASA and the large prime contractors so the info should be reliable...
Not sure if there is a name for it. I got the technique from the book Astronomical Algorithms by Jean Meeus. His reference lists something thats long and in German, which I don't speak very well. A mathematician might know of the proper name for it.
Brian Lewis
The Aerospace Corporation...
I don't know of any books dedicated to VSAT design, but have seen a handful of AIAA papers on the subject, you might try their website or see if a technical library close has a subscription to AIAA services.
Brian Lewis
The Aerospace Corporation
http://www.aero.org/
