[Iaude] MPEC B134: COMET P/2015 HG16 = P/2023 W2 (PANSTARRS)

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Jan 26 00:44:07 EST 2024


M.P.E.C. 2024-B134                             Issued 2024 January 26, 05:41 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                   COMET P/2015 HG16 = P/2023 W2 (PANSTARRS)                    

     J. Maikner has recovered comet P/2015 HG16 = P/2023 W2 (PANSTARRS) in
images taken on 2023 Nov. 19 and 20 UT from Comet Hunter Observatory2 (W62).

Observations:
    PK23W020*KC2023 11 17.14994502 30 25.10 +07 34 52.0          20.4 GXEB134W62
    PK23W020 KC2023 11 17.17322302 30 24.05 +07 34 54.1          20.2 GXEB134W62
    PK23W020 KC2023 11 17.19634302 30 23.00 +07 34 56.0          20.3 GXEB134W62
    PK23W020 KC2023 11 19.14985502 29 02.36 +07 37 34.4          20.4 GXEB134W62
    PK23W020 KC2023 11 19.17300302 29 01.35 +07 37 36.1          20.2 GXEB134W62
    PK23W020 KC2023 11 19.19616302 29 00.34 +07 37 38.1          20.3 GXEB134W62
    PK23W020  C2023 12 07.21621902 18 10.793+08 14 24.86         21.39GVEB134V00
    PK23W020  C2023 12 07.22173702 18 10.616+08 14 25.94         21.55GVEB134V00
    PK23W020  C2023 12 07.22724002 18 10.458+08 14 26.84         21.38GVEB134V00
    PK23W020  C2023 12 07.23274302 18 10.307+08 14 27.74         21.05GVEB134V00
    PK23W020  C2023 12 08.37771202 17 38.457+08 17 43.34         21.80wXEB134F51
    PK23W020  C2023 12 08.39034802 17 38.111+08 17 45.51         21.74wXEB134F51
    PK23W020  C2023 12 08.40301402 17 37.750+08 17 47.80         21.58wXEB134F51
    PK23W020  C2023 12 08.41572702 17 37.399+08 17 50.02         21.62wXEB134F51
    PK23W020 KC2023 12 16.78856302 14 27.69 +08 45 04.5          20.1 RqEB134215
    PK23W020 KC2023 12 16.79115302 14 27.69 +08 45 05.4          19.9 RqEB134215
    PK23W020 KC2023 12 16.79374302 14 27.66 +08 45 05.0          20.4 RqEB134215

Observer details:
215 Buchloe.  Observer W. Hasubick.  0.44-m f/4.6 reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
V00 Kitt Peak-Bok.  Observer H. Groeller.  Measurers M. J. Brucker, C. E.
    Woodward, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, H. Groeller, J.
    K. Hogan, R. A. Kowalski, S. M. Larson, C. Lejoly, G. J. Leonard, R. A.
    Mastaler, R. S. McMillan, D. Rankin, R. L. Seaman, A. Serrano, F. C.
    Shelly, K. W. Wierzchos.  2.25-m reflector + 4x4K mosaic CCD.
W62 Comet Hunter Observatory2, New Ringgold.  Observer J. Maikner.  0.30-m
    f/3.8 Riccardi-Honders + CCD.

Orbital elements:
    P/2015 HG16 (PANSTARRS)                                                     
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                                        
T 2024 Oct. 16.72401 TT                                 Rudenko                 
q   3.1177546            (2000.0)            P               Q                  
n   0.09361687     Peri.   46.89129     -0.20832075     -0.93918178             
a   4.8035979      Node    57.09182     +0.77607546     -0.32861325             
e   0.3509543      Incl.   18.97777     +0.59523890     +0.09975427             
P  10.5                                                                         
>From 67 observations 2015 Jan. 14-2023 Dec. 16, mean residual 0".7.             
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2023 12 27    02 12 24.6 +09 26 29   2.9377  3.5264   119.4    14.1  20.3
...
2024 01 11    02 13 07.0 +10 42 02   3.1077  3.4905   104.8    15.8  20.4
...
2024 01 19    02 15 15.7 +11 28 41   3.2054  3.4717    97.4    16.3  20.4
...
2024 01 25    02 17 37.8 +12 06 08   3.2801  3.4579    92.0    16.5  20.5
2024 01 26    02 18 05.1 +12 12 33   3.2926  3.4557    91.2    16.5  20.5
2024 01 27    02 18 33.4 +12 19 02   3.3051  3.4534    90.3    16.6  20.5
...
2024 02 02    02 21 44.0 +12 58 52   3.3801  3.4398    85.1    16.6  20.5
...
2024 02 10    02 26 50.7 +13 54 20   3.4792  3.4221    78.5    16.4  20.6
...
2024 02 25    02 38 52.8 +15 43 45   3.6572  3.3899    66.7    15.6  20.6

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-B134





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