Electronic Telegram No. 5243 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 COMET P/2016 BA_14 = P/2020 U6 (PANSTARRS) R. Weryk, Department of Physics and Astronomy, University of Western Ontario, reports the recovery of comet P/2016 BA_14 (cf. CBET 4257) as an apparently asteroidal object in images obtained with the Pan-STARRS1 1.8-m Ritchey-Chretien reflector at Haleakala (recovery observations tabulated below). 2020 UT R.A. (2000) Decl. Mag. Oct. 17.51967 3 49 40.03 + 0 02 34.2 22.6 18.42827 3 49 09.19 - 0 07 31.0 23.1 Nov. 19.41512 3 19 10.41 - 5 54 02.0 22.3 19.42639 3 19 09.61 - 5 54 07.3 22.8 19.43766 3 19 08.81 - 5 54 13.4 22.1 Dec. 7.33316 2 58 53.18 - 7 52 22.4 23.1 7.34730 2 58 52.26 - 7 52 26.1 22.9 7.36123 2 58 51.37 - 7 52 29.3 22.6 2021 UT R.A. (2000) Decl. Mag. Jan. 5.28449 2 40 03.37 - 7 41 59.8 23.5 5.29698 2 40 03.18 - 7 41 56.4 22.8 5.30931 2 40 03.00 - 7 41 53.2 23.0 5.32163 2 40 02.82 - 7 41 49.8 23.2 The above recovery positions are within 2" of the prediction in NK 3669. The following linked orbital elements by S. Nakano (Central Bureau) are from 1837 observations spanning 2015-2021 (mean residual 0".4). The comet passed 0.024 AU from the earth on 2016 Mar. 22.8 and will pass 0.052 AU from the earth on 2048 Mar. 14. Also, comet will pass 0.67 AU and 0.76 AU from Jupiter on 2034 Jan. 30 and 2046 July 6 UT, respectively. Epoch = 2016 Apr. 2.0 TT T = 2016 Mar. 15.51741 TT Peri. = 351.89524 e = 0.6663194 Node = 180.53526 2000.0 q = 1.0085745 AU Incl. = 18.92012 a = 3.0225741 AU n = 0.18755932 P = 5.26 years Epoch = 2021 July 5.0 TT T = 2021 June 17.30762 TT Peri. = 351.88801 e = 0.6652062 Node = 180.52654 2000.0 q = 1.0128243 AU Incl. = 18.89375 a = 3.0252183 AU n = 0.18731346 P = 5.26 years Epoch = 2026 Oct. 7.0 TT T = 2026 Sept.21.58042 TT Peri. = 351.92216 e = 0.6643200 Node = 180.51098 2000.0 q = 1.0164792 AU Incl. = 18.90018 a = 3.0281201 AU n = 0.18704428 P = 5.27 years Epoch = 2032 Jan. 9.0 TT T = 2031 Dec. 31.85905 TT Peri. = 351.98465 e = 0.6635169 Node = 180.48445 2000.0 q = 1.0198500 AU Incl. = 18.88445 a = 3.0309098 AU n = 0.18678610 P = 5.28 years Epoch = 2037 May 22.0 TT T = 2037 May 14.54157 TT Peri. = 354.09982 e = 0.6415541 Node = 178.48937 2000.0 q = 1.1072052 AU Incl. = 20.14531 a = 3.0889048 AU n = 0.18155043 P = 5.43 years Epoch = 2042 Oct. 3.0 TT T = 2042 Oct. 20.71118 TT Peri. = 354.20573 e = 0.6414995 Node = 178.45213 2000.0 q = 1.1073492 AU Incl. = 20.15020 a = 3.0888356 AU n = 0.18155653 P = 5.43 years Epoch = 2048 Mar. 25.0 TT T = 2048 Mar. 12.89415 TT Peri. = 355.75684 e = 0.6584884 Node = 177.95318 2000.0 q = 1.0321181 AU Incl. = 20.22446 a = 3.0222053 AU n = 0.18759365 P = 5.25 years NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2023 CBAT 2023 April 2 (CBET 5243) Daniel W. E. Green