References
D72  (2011):  Masiero, J.R., Mainzer, A.K., Grav, T., Bauer, J.M., Cutri, R.M., Dailey, J., Eisenhardt, P.R.M., McMillan, R.S., Spahr, T.B., Skrutskie, M.F., Tholen, D., Walker, R.G., Wright, E.L., DeBaun, E., Elsbury, D., Gautier, IV, T., Gomillion, S., Wilkins, A., 2011. Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters. Astrophysical Journal 741, 68. 
Mass estimates
Notes (N):
1: This estimate is discarded for the average mass (and derived density) calculation in Carry (2012).
2: This estimate is discarded for the average mass (and derived density) calculation in SiMDA (catalog).
3: This estimate is an average of individual solutions listed before under the same reference (e.g. M125).
PheMu : Mutual eclipsing phenomena in binary systems.

EVM mass average M = (1.860 ± 0.620) × 10^{14} kg (ΔM/M = 33%, SNR = 3.0)
Derived bulk density ρ = (2.60 ± 0.88) g/cm^{3} (Δρ/ρ = 34%, SNR = 3.0)

References
M66  (2007):  Descamps, P., Marchis, F., Michalowski, T., Colas, F., Berthier, J., Vachier, F., TengChuenYu, J.P., Peyrot, A., Payet, B., Dorseuil, J., Léonie, Y., Dijoux, T., Berrouachdi, H., Chion Hock, C., Benard, F., 2007. Nature of the small main belt Asteroid 3169 Ostro. Icarus 189, 362–369. 
 