@github: 57 years ago today, humans first landed on the Moon. The source code that helped get them there? It’s on GitHub. Margar…
Summary
GitHub highlights the repository of the Apollo 11 guidance computer source code, originally led by Margaret Hamilton and the MIT team, as a tribute to the 57th anniversary of the first moon landing.
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Cached at: 07/21/26, 01:35 AM
57 years ago today, humans first landed on the Moon. The source code that helped get them there? It’s on GitHub.
Margaret Hamilton led the MIT team responsible for Apollo’s onboard flight software. The Apollo Guidance Computer software eventually grew to about 145,000 lines of code.
Explore the original Apollo 11 guidance software for the Command and Lunar Modules. https://github.com/chrislgarry/apollo-11…
Image credit: Draper Laboratory; restoration by Adam Cuerden, via Wikimedia Commons.
chrislgarry/apollo-11
Source: https://github.com/chrislgarry/apollo-11
Apollo-11
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Original Apollo 11 guidance computer (AGC) source code for Command Module (Comanche055) and Lunar Module (Luminary099). Digitized by the folks at Virtual AGC and MIT Museum. The goal is to be a repo for the original Apollo 11 source code. As such, PRs are welcome for any issues identified between the transcriptions in this repository and the original source scans for Luminary 099 and Comanche 055, as well as any files I may have missed.
Contributing
Please read CONTRIBUTING.md before opening a pull request.
Compiling
If you are interested in compiling the original source code, check out Virtual AGC.
Attribution
| Copyright | Public domain |
| Comanche055 | Part of the source code for Colossus 2A, the Command Module’s (CM) Apollo Guidance Computer (AGC) for Apollo 11Assemble revision 055 of AGC program Comanche by NASA2021113-051. 10:28 APR. 1, 1969 |
| Luminary099 | Part of the source code for Luminary 1A, the Lunar Module’s (LM) Apollo Guidance Computer (AGC) for Apollo 11Assemble revision 001 of AGC program LMY99 by NASA2021112-061. 16:27 JUL. 14, 1969 |
| Assembler | yaYUL |
| Contact | Ron Burkey [email protected] |
| Website | www.ibiblio.org/apollo |
| Digitalisation | This source code has been transcribed or otherwise adapted from digitized images of a hardcopy from the MIT Museum. The digitization was performed by Paul Fjeld, and arranged for by Deborah Douglas of the Museum. Many thanks to both. |
Contract and Approvals
Derived from CONTRACT_AND_APPROVALS.agc
This AGC program shall also be referred to as Colossus 2A.
This program is intended for use in the Command Module as specified in report R-577. This program was prepared under DSR project 55-23870, sponsored by the Manned Spacecraft Center of The National Aeronautics and Space Administration through contract NAS 9-4065 with the Instrumentation Laboratory, Massachusetts Institute of Technology, Cambridge, Mass.
| Submitted by | Role | Date |
|---|---|---|
| Margaret H. Hamilton | Colossus Programming Leader Apollo Guidance and Navigation | 28 Mar 69 |
| Approved by | Role | Date |
|---|---|---|
| Daniel J. Lickly | Director, Mission Program Development Apollo Guidance and Navigation Program | 28 Mar 69 |
| Fred H. Martin | Colossus Project Manager Apollo Guidance and Navigation Program | 28 Mar 69 |
| Norman E. Sears | Director, Mission Development Apollo Guidance and Navigation Program | 28 Mar 69 |
| Richard H. Battin | Director, Mission Development Apollo Guidance and Navigation Program | 28 Mar 69 |
| David G. Hoag | Director Apollo Guidance and Navigation Program | 28 Mar 69 |
| Ralph R. Ragan | Deputy Director Instrumentation Laboratory | 28 Mar 69 |
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