Model Number: EDO-MDX09
Code name: Sagittarius
Unit Type: Mobile drone
Manufacturer: Earth Defense Organization
Operator: Earth Defense Organization
First deployment: AC 217
Pilots: N/A
Accommodation: N/A
Height: 7.3 meters
Weight: 6.0 tons
Armor: Titanium alloy
Powerplant: Ultracompact fusion reactor, power output rating unknown
Equipment and design features: Head-mounted sensors, range unknown; EDO-MDXX Mobile Doll control AI system
Fixed armaments: 2 x large beam cannon, mounted on torso over the shoulders; 2 x linear gun, mounted on skirt armor; 2 x 6-tube micromissile launcher, mounted on legs; 2 x gattling gun, mounted on arms.
Optional fixed armaments: none
Optional hand armaments: none

In the wake of the Ides Tragedy in early AC 217, the entire Earth Sphere was thrust into unrest as the population tried to cope with the global disaster that would ultimately claim more than half a billion lives. Suddenly short on manpower with which to defend the crippled Earth from the coming Venus invasion fleet, the Earth Defense Organization hurriedly came up with the MDX Project to supplement the military's limited manned mobile suit force. Taking a page from the Virgo's development, the EDO designed three new mobile dolls, the EDO-MDX08 Gemini, the EDO-MDX09 Sagittarius, and the EDO-MDX10 Capricorn. Unlike the original mobile dolls however, the EDO's mobile dolls were far more compact and intended to serve a different mission role. While the Virgo and Virgo II had been intended as the mainstay forces of the White Fang, the EDO's mobile dolls were not to replace manned suits, but instead to supplement them with additional weapons and support. They would be labeled "mobile drones" to reflect their stature and somewhat inferior status. While extremely cheap to mass-produce, the miniature mobile suits could not take nearly the abuse of their full-size cousins. The Sagittarius, the "archer" of the Zodiac, was built as a heavy fire support unit. Mounting a modest missile capacity as well as two arm-mounted gattling guns gave the suit short to medium range firepower. But the most dangerous weapons carried by these drones were the linear guns folded away in the waist armor, and the large beam cannons mounted over the suit's shoulders, powerful enough to destroy a mobile suit in one blow, not to mention capable of overloading planet defensor shields and dealing decent damage to larger ships.