Instructor: Dr.
Ringwald |
Phone: 674-7135 (office) |
Office: S418 Crawford, 4th floor
Office hours: MW 2-5, and by appointment, but
please e-mail or phone first!
Please feel free to contact me, if you have any problems whatsoever in this course - or if you're doing well, and just want to talk about the wonders of the Universe, or the future of spaceflight. This is a private school: it's in our interest, and we care, that you do well!
Course Description (from the 1998-99 University Catalog):
(3 credits). This course provides the foundations of basic gravitation
and orbital theory. Topics include coordinate and timekeeping systems, the
two-body problem, particle dynamics and motion under inverse square
forces, particularly as applied to spacecraft orbit determinations,
trajectories, time of flight and maneuvers. Prerequisite: PHY 3009
(Physical Mechanics), or equivalent knowledge of central-force motion.
Course meeting times and location: TR 3:30-4:45 p.m. in Room S507,
Crawford
Required Course text: Fundamentals of Astrodynamics, by
Roger R. Bate,
Highly recommended: Astronomical Algorithms, by Jean Meeus, available through
Also on reserve at Evans Library:
Orbital Motion, by Archie Roy. Intermediate-level and not bad. Good coverage of natural orbital phenomena, e.g. in binary stars.
An Introduction to the Mathematics and Methods of Astrodynamics, by Richard H. Battin. A heavy tome.
Orbital Mechanics, by Tom Logdson. Not exactly light reading, but perhaps best for ideas and examples.
Course Web page: http://www.astro.fit.edu/ringwald/sps3030.html
Course plan (updated March 17):
Week | Topic | Text Chapters |
---|---|---|
1-2 | Gravitation and the Two-Body Problem | 1 |
3 | Position and Time | 1 |
4-5 | Orbit Determination | 2 |
6 | First midterm exam: Tuesday, February 16 | 1-3 |
7 | Laplace Method, Gibbs Method | 2 |
8 | Basic Orbtial Maneuvers, Earth Satellites | 3 |
- | Spring break: March 8-12 | - |
9 | The 3-body problem, Lunar Trajectories | 7 |
10 | Lunar and Interplanetary Trajectories Also: Project titles and summaries (see instructions below) due: Thursday, March 25 | 7,8 |
11 | Position and Velocity | 4 |
12 | Second midterm exam: Thursday, April 8 | 3, 7-8 |
13 | The Gauss Problem | 4,5 |
14-15 | Perturbation Theory Also: Term Projects due: Thursday, April 29 | 9 |
16 | Final Exam: Friday, May 7, 3:30 - 5:30 p.m. | 1-5, 7-9 |
Course grades will be awarded for the following:
Homework: | 30% | ||||||
Midterm Exams, which will take the whole 75-minute class periods on
30% (15% each)
| Class participation, including handing in the survey forms:
| 5%
| Term project, due at the beginning of the last session of class,
| 10%
| Final Exam, which will be comprehensive, on Friday, May 7, | 25%
| |
Please note:
Term projects: A tentative project title (you're allowed to change your mind if you later discover something better: this is something I like particularly about science), with a typed or printed short (between 200- and 300-word) summary of your project, will be due at the beginning of class on March 25. These projects should be quantitative, preferably involving programming, in whatever computer language you feel comfortable working in. Possible projects might include trajectories for ion-drive or solar sail spacecraft, complex trajectories such as those for Galileo or ICE by Bob Farquhar, or unusual ones such as for space observatories in libration-point orbits, asteroid or comet probes, Ulysses, or Solar Probe. Other ideas for projects might include the dynamics of satellite tethers, satellite geodesy, high-precision ephemerides for planetary motion such as those used at JPL, station-keeping for geosynchronous satellites, or many-body theory and galactic dynamics. Determining asteroid or comet orbits with Laplace's method, Gauss's method, or the routines in Meeus's book, with an arbitrarily large set of observations, would be particularly useful to me. Also interesting would be Project Intercept, from BMW (pp. 445-447). Write-ups should be 3-5 pages, or longer.
However, if you do collaborate on homework, it must be genuine collaboration: not one person doing all the work, and the others blindly copying. That's cheating! Cheating and plagiarism are very serious matters, and the worst possible things for science. What's the point of doing science, creating new knowledge about the Universe, if it isn't honest? My students, of course, wouldn't do that!
(One can recycle paper, too, but it would be a good idea for you to hang onto all copies of all work you have done in all your classes, ever. They'll be a big help if, one day, you find yourself teaching a class like this.)
If Web access is still a problem for you, please come to office hours (MW 2-5) or make an appointment, and I'll let you use my machine. I won't therefore accept excuses such as "I couldn't use the Internet" or "My browser wasn't Java enabled." This last one was sprung on me last semester. The shame is that, if you can run Netscape, you can run Java: just pull down the menu and select "Enable Java"...
Some general principles:
Some Rules and Hints for Teachers and Students
I'd like to encourage you all to participate in outside activities that help your careers. I will focus this class on current topics of interest and problems in Solar System science, particularly those you may find yourselves working on in the coming years. Another way to keep up with what's happening now that's quite painless, and is in fact fun and interesting, is to read the same popular magazines mentioned above, including Sky & Telescope, Astronomy, Mercury, The Planetary Report, New Scientist, Physics Today, and Scientific American. Although I recommend it, you need not subscribe to them: Evans Library should have subscriptions to all.
Skycalc:
Skycalc is a most useful astronomical almanac calculator by Prof. John Thorstensen, my former Ph.D. thesis advisor. Please don't e-mail Prof. Thorstensen: if you have questions or problems with this software, contact me.
Some links of interest:
Astrodynamic
Constants and Parameters, by the
Solar System Dynamics Group
Planetary Fact Sheets, by the National Space Science Data Center (NSSDC)
The big list of current, planned, and past missions, maintained by NASA's
My very own UNIX primer. I strongly recommend you learn UNIX, since almost no one in
Three sources of space news:
NASA Space Science News. Subscribe for free, if you like.
So, you want to walk on the
Moon?
Astronomy magazine article by me,
My own mandatory Big Page of Links!
Florida Institute of Technology Astronomical Society (FITAS): I strongly encourage you
Constants and Equations for Calculations, from what used to be the sci.space FAQ, and is
The Basics of Spaceflight Learners' Workbook, by Dave Doody and George Stephan at JPL.
The Slingshot Effect: How spacecraft accelerate in planetary flybys
Last updated 1999 March 17.
Web page by Dr. Ringwald
Department of Physics and Space Sciences,
Florida Institute of Technology