[2] The body's observation arc begins with a precovery published by the Digitized Sky Survey and taken at Palomar Observatory in December 1953, more than 44 years prior to its official discovery observation at Socorro.
[9] In August 2013, Robert Stephens at the Center for Solar System Studies observed 1998 MA11 over three nights.
[11] In December 2015, Stephens obtained an improved lightcurve with a rotation period of 250±5 hours and a brightness variation of 0.30 magnitude (U=2-).
The photometric observations also revealed that this object possibly has a non-principal axis rotation, which is commonly known as tumbling.
[7][8][a] According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer and the Japanese Akari satellite, 1998 MA11 measures 43.53 and 51.53 kilometers in diameter and its surface has an albedo of 0.071 and 0.046, respectively.