Electronic Telegram No. 5215
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
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Prepared using the Tamkin Foundation Computer Network


(2871) SCHOBER
     V. Benishek, Belgrade Astronomical Observatory; P. Pravec, Ondrejov
Observatory; and F. Pilcher, Organ Mesa Observatory, Las Cruces, NM, U.S.A.,
report that photometric observations taken with a 0.35-m telescope at the
Sopot Observatory in Serbia and a 0.35-m telescope at the Organ Mesa
Observatory during 2022 Oct. 18-Nov. 3 reveal that minor planet (2871) is a
binary system with an orbital period of 42.47 +/- 0.02 hr.  The primary shows
a period of 2.85219 +/- 0.00009 hr and has a lightcurve amplitude of 0.17 mag
at solar phase 2 degrees, suggesting a nearly spheroidal shape.  Mutual
eclipse/occultation events that are 0.08 magnitude deep indicate a lower
limit on the secondary-to-primary mean-diameter ratio of 0.28.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2023 CBAT
2023 February 3                  (CBET 5215)              Daniel W. E. Green