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Interplanetary Pork Chop Plots

version 1.3.0.0 (2.1 MB) by David Eagle
A MATLAB Script for Creating Pork Chop Plots of Ballistic Earth-to-Mars Trajectories

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Updated 06 Aug 2013

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PDF document and MATLAB script that can be used to create and plot interplanetary “pork chop” plots for Type I and Type II Earth-to-Mars trajectories. These plots illustrate the behavior of launch energy (C3L), right ascension (RLA) and declination (DLA) of the departure hyperbola, time-of-flight, and arrival v-infinity, DLA and RLA for a range of user-defined launch and arrival calendar dates.

The data required for these contour plots is created by solving the heliocentric, two-body “patched-conic” Lambert problem. A patched-conic trajectory ignores the gravitational effect of both the launch and arrivals planets on the heliocentric trajectory. Pork chop plots are typically used for preliminary mission analysis.

Comments and Ratings (4)

please wait, computing data ....

Error using fread
Invalid file identifier. Use fopen to generate a valid file identifier.

Error in jplephem (line 70)
ttl = fread(fid, 252);

Error in p2000 (line 23)
result = jplephem (jdate, ntarg, ncent);

Error in pcfunc (line 21)
[ri, vi] = p2000(11, ip1, jdate1);

Error in porkchop (line 181)
[dv1, dv2] = pcfunc (JDi, JDf);
Please contact me on parkari@my.erau.edu if you have a fix for this issue. I would really appreciate the help. Thank you

Albert

please wait, computing data ....

error in:fread
Invalid file identifier. Use fopen to generate a valid file identifier.
error in: jplephem (line 70)
ttl = fread(fid, 252);

error in: p2000 (line 23)
result = jplephem (jdate, ntarg, ncent);

error in: pcfunc (line 21)
[ri, vi] = p2000(11, ip1, jdate1);

error in: porkchop (line 181)
[dv1, dv2] = pcfunc (JDi, JDf);

please contact me :812690425@qq.com

LIXIN TU

Now de421.bin can be found here https://cdeaglejr.wordpress.com/

Updates

1.3.0.0

Added contour plot of total heliocentric delta-v. Updated PDF document.

1.2.0.0

Includes MICE version in porkchop_mice.zip archive.

1.1.0.0

Updated to use the DE421 binary ephemeris file from JPL. PDF document also updated.

MATLAB Release Compatibility
Created with R2012a
Compatible with any release
Platform Compatibility
Windows macOS Linux