[14] In August 2000, a rotational lightcurve of Aisleen was obtained from photometric observations made by Glen Malcolm at the Roach Motel Observatory (856) in California.

The analysis gave a well-defined rotation period of 6.68 hours during which the brightness varied by 0.56 in magnitude (U=3).

[11] In April 2014, photometric observations by Brian D. Warner gave a period of 6.683 hours with an amplitude of 0.31 magnitude (U=3).

[12] A modeled lightcurve from various data sources gave a concurring period of 6.67597 hours[10] and found a pole of (109°,−68°).

[6][7][8][9] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for Phocaea asteroids of 0.23 – derived from 25 Phocaea, the family's most massiv member and namesake – and calculates a diameter of 12.67 kilometers based on an absolute magnitude of 11.7.