Electronic Telegram No. 5082 Central Bureau for Astronomical Telegrams Mailing address: Hoffman Lab 209; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbatiau@eps.harvard.edu (alternate cbat@iau.org) URL http://www.cbat.eps.harvard.edu/index.html Prepared using the Tamkin Foundation Computer Network TAMKIN FOUNDATION GRANT The Central Bureau and Comet Science Laboratory gratefully acknowledge a generous new grant (supplementing several earlier ones) from The Tamkin Foundation for updating old computer systems in the focus on cometary science, including those objects that can come close to the earth. Foundation President S. Tamkin writes: "The Tamkin Foundation has held an ongoing, long-term commitment to support efforts directed toward the appraisal, understanding and management of the existential threat to mankind from near-earth objects, and appreciates the invaluable work performed by the CBAT and the Minor Planet Center." NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2021 CBAT 2021 December 9 (CBET 5082) Daniel W. E. Green