Surprise! I found a one-off manga by Kazuhisa Kondo. It was released in 1992 and is one of the first manga in the UC continuity that happened outside of the Earth Sphere. It features Axis units led by two famous Zeon aces against a Gundam unit piloted by a mysterious figure near Jupiter...
Gundam Sentinel Podcast aka #gundambookclub is performing a critical analysis and commentary and is protected by the Fair Use clause of the United States Copyright law. Gundam content is copyright and/or trademark of Sunrise Inc., Bandai, Sotsu Agency, or its original creator. The Dogs of War content is copyright and/or trademark of B-Club Comics, or its original creator. Gundam Sentinel Podcast/Gundam Book Club is in no way affiliated with or endorsed by Sunrise, Bandai, Sotsu, Kadokawa Shoten or any of their subsidiaries, employees, or associates and makes no claim to own Gundam or any of the copyrights or trademarks related to it. Copyrighted content used in Gundam Sentinel Podcast is used in accordance with the Fair Use clause of the United States Copyright law. Music used in this episode is being used under the "Fair Use" clause. Please email email@example.com with any questions.
https://en.wikipedia.org/wiki/Kazuhisa_Kondo (English version)
https://ja.wikipedia.org/wiki/近藤和久 (Japanese version)