7641 Cteatus

7641 Cteatus, provisional designation: 1986 TT6, is a large Jupiter trojan from the Greek camp, approximately 70 kilometers (43 miles) in diameter.

[14] On 14 May 2021, the object was named by the Working Group for Small Bodies Nomenclature (WGSBN), after Cteatus from Greek mythology, who had a conjoined twin.

[4] In October 2009, a rotational lightcurve of Cteatus was obtained from photometric observations by Italian astronomer Stefano Mottola at the Calar Alto Observatory in Spain.

[4][10] While not being a slow rotator, its period is significantly longer than that of most larger Jupiter trojans, which have a spin rate of typically 10 hours.

[7][8][9] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0647 and a diameter of 68.89 kilometers based on an absolute magnitude of 9.4.