Asdad was a planet where the System Lord Ba'al experimented with gravity technology. He kept it hidden from the rest of the Goa'uld. The planet was a fortress, and the Tok'ra sent Kanan to map out the base. During his time, Kanan had an affair with Shallan, Ba'al's lo'taur. After being implanted in Colonel Jack O'Neill, Kanan attempted to rescue Shallan. The plan failed, and O'Neill was captured and tortured. SG-1 sent the location of the planet to Yu, who dispatched his Ha'tak to attack, allowing O'Neill a chance to escape. (SG1: "Abyss")

While performing research into Ba'al's anti-gravity technology in an effort to rescue SG-10 from P3W-451, SG-1 learned that according to a Jaffa legend, when Ba'al was overthrown by the Kinahhi, he fled to this world, which was referred to as "Asdad" or "fortress", with the power source for his anti-gravity shield device of Ancient design. Unable to use it as the rest of the technology was left behind on Kinahhi, Ba'al placed the power source in a shrine on this planet. Ba'al continued studying gravity technologies here like he did on Kinahhi, but without his shield, he wasn't able to do it on as great a level as he did on Kinahhi where he was able to create black holes. When SG-1 met the Kinahhi, they were given the plans to Ba'al's shield device, but needed a power source capable of powering it. Realizing that Ba'al had the original power source here, SG-1 traveled to this world against orders and raided Ba'al's outpost for it, finding the outpost heavily damaged, but not completely abandoned with a Jaffa presence left to presumably guard against the other System Lords raiding it. SG-1 found and stole the power source, escaping in one of the outpost's Tel'taks but the outpost was destroyed in the process. (SG1: "A Matter of Honor")

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