Fig. 15

Detection efficiency function Be characterizing performance of the two stations at Catalina Sky Survey: the 1.5-m Mt. Lemmon telescope (code G96) and 0.8-m Catalina telescope (code 703). The smaller of the two covers larger area of the sky, allowing a nearly complete census of brighter members in the Datura family. The detection efficiency drops below 0.5 at ≃16.8 mag, mainly due to performance of station 703. The non-negligible detection-efficiency tail to fainter objects of a magnitude up to 20 is due to observations of the larger, Mt. Lemmon telescope. Because the station G96 searches a smaller sky area near ecliptic, it could miss some orbits and the efficiency stays below 0.2 value. The gray arrow indicates a range of sub-kilometer size asteroids for assumed albedo pV = 0.24.
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