[3] Lina is a core member of the Themis family, an ancient population of carbonaceous outer-belt asteroids with nearly coplanar ecliptical orbits.
[1][11] In December 2006, a rotational lightcurve of Lina was obtained by American astronomer Robert Buchheim at Altimira Observatory (G76) in California.
[15] According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, the Spitzer Space Telescope, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Lina measures between 58.60 and 69.34 kilometers in diameter, and its surface has an albedo between 0.043 and 0.06.
[5][7][8][10][13] The Collaborative Asteroid Lightcurve Link still adopts the results obtained by IRAS, that is an albedo of 0.043 and a diameter of 69.34 kilometers at an absolute magnitude of 9.83,[4] while more recent results by NEOWISE and Spitzer tend toward a higher albedo of 0.06 and a shorter diameter of 58.60 and 59.7 kilometer, respectively.
[5][7] Spitzer's spectra of Lina shows an emissivity plateau in the wavelength range of 9 to 12 μm, which is indicative of silicates.