MPEC 2016-J90 : P/2016 J1 (PANSTARRS)
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M.P.E.C. 2016-J90 Issued 2016 May 8, 23:21 UT The Minor Planet Electronic Circulars contain information on unusual minor planets and routine data on comets. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Prepared using the Tamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL https://www.minorplanetcenter.net/ ISSN 1523-6714 P/2016 J1 (PANSTARRS) Observations: PK16J01a C2016 05 05.46342 15 46 25.093-06 48 03.90 21.4 TLEJ090F51 PK16J01a C2016 05 05.47541 15 46 24.629-06 47 57.14 21.5 TLEJ090F51 PK16J01a C2016 05 05.48743 15 46 24.144-06 47 49.89 21.4 TLEJ090F51 PK16J01a C2016 05 05.49944 15 46 23.663-06 47 43.12 21.3 TLEJ090F51 PK16J01a C2016 05 06.29582 15 45 53.81 -06 40 04.7 20.6 TqEJ090I52 PK16J01a |C2016 05 06.30919 15 45 53.17 -06 39 57.0 vEJ090H06 PK16J01a |C2016 05 06.31501 15 45 52.91 -06 39 52.8 vEJ090H06 PK16J01a |C2016 05 06.32083 15 45 52.67 -06 39 49.0 20.8 TvEJ090H06 PK16J01a C2016 05 06.32129 15 45 52.75 -06 39 49.1 21.5 TqEJ090I52 PK16J01a _C2016 05 06.42589115 45 48.741-06 38 48.15 21.1 TtEJ090568 PK16J01a _C2016 05 06.42716715 45 48.690-06 38 47.43 21.1 TtEJ090568 PK16J01a _C2016 05 06.42844415 45 48.637-06 38 46.69 21.0 TtEJ090568 PK16J01a _C2016 05 07.44503415 45 09.460-06 29 04.53 20.9 TtEJ090568 PK16J01a _C2016 05 07.44700815 45 09.376-06 29 03.42 21.0 TtEJ090568 PK16J01a _C2016 05 07.44897915 45 09.296-06 29 02.26 20.9 TtEJ090568 PK16J01a C2016 05 08.34928515 44 34.03 -06 20 32.4 21.1 TtEJ090H01 PK16J01a C2016 05 08.36053815 44 33.57 -06 20 26.0 21.3 TtEJ090H01 PK16J01a C2016 05 08.36308915 44 33.47 -06 20 24.8 21.4 TtEJ090H01 PK16J01a C2016 05 08.36802015 44 33.25 -06 20 21.5 21.3 TtEJ090H01 PK16J01a C2016 05 08.37113815 44 33.13 -06 20 20.0 21.1 TtEJ090H01 PK16J01a C2016 05 08.39026915 44 32.33 -06 20 09.3 21.5 TtEJ090H01 PK16J01a HC2016 05 08.44485 15 44 30.11 -06 19 38.1 21.5 ToEJ090691 PK16J01a HC2016 05 08.45654 15 44 29.65 -06 19 31.4 21.1 ToEJ090691 PK16J01a HC2016 05 08.46822 15 44 29.05 -06 19 23.9 21.5 ToEJ090691 PK16J01b _C2016 05 06.42589115 45 56.315-06 38 47.74 21.6 TtEJ090568 PK16J01b _C2016 05 06.42716715 45 56.262-06 38 47.00 21.8 TtEJ090568 PK16J01b _C2016 05 07.44503415 45 17.041-06 29 04.07 21.5 TtEJ090568 PK16J01b _C2016 05 07.44700815 45 16.964-06 29 03.06 21.4 TtEJ090568 PK16J01b _C2016 05 07.44897915 45 16.883-06 29 01.88 21.4 TtEJ090568 PK16J01b C2016 05 08.34928515 44 41.63 -06 20 31.9 21.3 TtEJ090H01 PK16J01b C2016 05 08.36053815 44 41.17 -06 20 25.6 21.6 TtEJ090H01 PK16J01b C2016 05 08.36308915 44 41.07 -06 20 24.0 21.6 TtEJ090H01 PK16J01b C2016 05 08.36802015 44 40.87 -06 20 21.6 21.7 TtEJ090H01 PK16J01b C2016 05 08.37113815 44 40.74 -06 20 19.9 21.7 TtEJ090H01 Observer details: 568 Mauna Kea. Observers R. J. Wainscoat, D. Woodworth. Measurers M. Micheli, R. J. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD. 691 Steward Observatory, Kitt Peak. Observer A. F. Tubbiolo. 0.9-m f/3 reflector + CCD. F51 Pan-STARRS 1, Haleakala. Observers B. Gibson, T. Goggia, N. Primak, A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk. 1.8-m Ritchey-Chretien + CCD. H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan. Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD. H06 iTelescope Observatory, Mayhill. Observer H. Sato. 0.43-m f/6.8 astrograph + CCD + f/4.5 focal reducer. I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski. Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD. Orbital elements: P/2016 J1-A (PANSTARRS) T 2016 Aug. 25.57147 TT MPCW q 2.3265518 (2000.0) P Q n 0.17892609 Peri. 68.29287 -0.07443061 +0.99466429 a 3.1190351 Node 197.88809 -0.97915147 -0.08647061 e 0.2540796 Incl. 13.44834 -0.18900393 +0.05626525 P 5.51 From 24 observations 2016 May 5-8. P/2016 J1-B (PANSTARRS) T 2016 Aug. 25.21488 TT MPCW q 2.3265518 (2000.0) P Q n 0.17892609 Peri. 68.20686 -0.07592361 +0.99455144 a 3.1190351 Node 197.88809 -0.97902057 -0.08794031 e 0.2540796 Incl. 13.44834 -0.18908817 +0.05598147 P 5.51 From 10 observations 2016 May 6-8. Very preliminary elements, based on fragment A, with T and Peri. varied. Ephemeris: P/2016 J1-A (PANSTARRS) Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2 2016 04 08 15 56 09.9 -11 08 43 1.6138 2.4535 138.3 15.8 21.4 ... 2016 04 23 15 52 54.3 -08 50 03 1.4905 2.4289 152.8 10.9 21.2 ... 2016 05 01 15 49 03.5 -07 31 30 1.4451 2.4168 160.0 8.2 21.1 ... 2016 05 07 15 45 26.7 -06 33 17 1.4211 2.4081 164.3 6.5 21.1 2016 05 08 15 44 47.8 -06 23 47 1.4180 2.4067 164.8 6.3 21.1 2016 05 09 15 44 08.3 -06 14 21 1.4151 2.4053 165.3 6.1 21.1 ... 2016 05 15 15 40 02.0 -05 19 58 1.4033 2.3971 166.2 5.8 21.0 ... 2016 05 23 15 34 26.3 -04 15 18 1.4016 2.3868 162.5 7.3 21.0 ... 2016 06 07 15 25 15.7 -02 48 18 1.4391 2.3696 149.4 12.6 21.0 P/2016 J1-B (PANSTARRS) Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2 2016 04 08 15 56 16.3 -11 08 46 1.6134 2.4529 138.3 15.8 21.9 ... 2016 04 23 15 53 01.4 -08 50 04 1.4901 2.4284 152.8 10.9 21.7 ... 2016 05 01 15 49 10.9 -07 31 30 1.4446 2.4162 160.0 8.2 21.6 ... 2016 05 07 15 45 34.3 -06 33 17 1.4207 2.4076 164.3 6.5 21.6 2016 05 08 15 44 55.4 -06 23 46 1.4176 2.4062 164.8 6.3 21.6 2016 05 09 15 44 15.9 -06 14 21 1.4147 2.4048 165.2 6.1 21.6 ... 2016 05 15 15 40 09.7 -05 19 57 1.4029 2.3966 166.2 5.8 21.5 ... 2016 05 23 15 34 34.1 -04 15 16 1.4011 2.3864 162.6 7.3 21.5 ... 2016 06 07 15 25 23.3 -02 48 14 1.4386 2.3692 149.4 12.6 21.5 Gareth V. Williams (C) Copyright 2016 MPC M.P.E.C. 2016-J90


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