Discovered 1973-09-27 by Chernykh, L. I. at Nauchnyj.
Named in honor of Semyon Stepanovich Geichenko, writer and literary scholar, researcher of the life and the creative work of A. S. Pushkin. Geichenko is especially known as director and curator of Mikhailovskoe, the Pushkin country-house museum in the Pskov region. He made a great effort to rebuild this memorial to Pushkin following its destruction in World War II.
Из результатов второго этапа спектроскопической съёмки малых астероидов главного пояса (Small Main-belt Asteroid Spectroscopic Survey, SMASSII) следует, что астероид относится к таксономическому классу C[9].
↑Bus, S. J.; et al. Phase II of the Small Main-Belt Asteroid Spectroscopic Survey. A Feature-Based Taxonomy (англ.) // Icarus. — 2002. — Vol. 158, no. 1. — P. 146—177.
↑ 12Mainzer, A.; et al. NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results (англ.) // The Astrophysical Journal. — 2011. — Vol. 741, no. 2. — P. 25. — doi:10.1088/0004-637X/741/2/90.
↑ 12Mainzer, A. K., et al. NEOWISE Diameters and Albedos V2.0 (англ.) // NASA Planetary Data System. — 2019. — doi:10.26033/18S3-2Z54.
↑ 12Nugent, C. R., et al. NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos (англ.) // The Astronomical Journal. — 2016. — Vol. 152, no. 3. — P. 12. — doi:10.3847/0004-6256/152/3/63.
↑ 12Masiero, J. R., et al. Asteroid Diameters and Albedos from NEOWISE Reactivation Mission Years Six and Seven (англ.) // The Planetary Science Journal. — 2021. — Vol. 2, no. 4. — P. 11. — doi:10.3847/PSJ/ac15fb.