[Iaude] MPEC E143: COMET P/2016 J1-B = P/2021 K5-B (PANSTARRS)

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-E143                               Issued 2024 March 11, 08:00 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.
			  
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                              MPC at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                  COMET P/2016 J1-B = P/2021 K5-B (PANSTARRS)                   

     M. Micheli reports the recovery of comet P/2016 J1-B (PANSTARRS) in
images taken on 2021 May 29, 30, and 31 UT from Mauna Kea Observatory (568).
An additional dectection was found on images taken 2022 July 7 UT from Gemini
South (I11).

Observations:
    PK21K05b*_C2021 05 29.28264110 24 26.011+03 44 41.70         23.6 TVEE143568
    PK21K05b _C2021 05 29.28649510 24 26.209+03 44 41.80         23.9 TVEE143568
    PK21K05b _C2021 05 29.29035510 24 26.415+03 44 41.76         23.9 TVEE143568
    PK21K05b _C2021 05 30.32727110 25 21.387+03 44 48.97         23.2 TVEE143568
    PK21K05b _C2021 05 30.33112510 25 21.592+03 44 48.94         22.8 TVEE143568
    PK21K05b _C2021 05 30.33498510 25 21.798+03 44 48.89         23.5 TVEE143568
    PK21K05b _C2021 05 31.31828810 26 14.850+03 44 47.67         22.9 TVEE143568
    PK21K05b _C2021 05 31.32214210 26 15.065+03 44 47.67         22.8 TVEE143568
    PK21K05b _C2021 05 31.32600810 26 15.257+03 44 47.61         23.2 TVEE143568
    PK21K05b _C2022 06 24.50698519 02 06.276+00 30 33.92         24.4 GVEE143568
    PK21K05b 5C2022 07 07.16944118 52 39.890+00 35 24.10         23.7 GVEE143I11
    PK21K05b 5C2022 07 07.17327818 52 39.698+00 35 23.67         23.8 GVEE143I11
    PK21K05b _C2022 07 07.34450818 52 32.122+00 35 07.47         23.8 GVEE143568

Observer details:
568 Maunakea.  Observers H. H. Hsieh, A. Smith, J. Ferrara, T. Mocnik, T.
    Seccull, Z. Hartman, E. P. Farina, C. Figura.  Measurer M. Micheli.  8.1-m
    Gemini North + CCD.
I11 Gemini South Observatory, Cerro Pachon.  Observers H. H. Hsieh, L. Magill.
    Measurer M. Micheli.  8.1-m Gemini South + CCD.

Orbital elements:
    P/2016 J1-B (PANSTARRS)                                                     
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                                         
T 2022 Feb. 22.80317 TT                                 Rudenko                 
q   2.4619662            (2000.0)            P               Q                  
n   0.17357914     Peri.   47.89168     -0.38744301     +0.91808473             
a   3.1827635      Node   199.79656     -0.90186248     -0.39628560             
e   0.2264690      Incl.   14.31080     -0.19113343     +0.00883994             
P   5.68                                                                        
>From 66 observations 2016 Apr. 14-2022 July 7, mean residual 0".4.              

Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2024 02 10    01 06 20.5 +04 33 55   4.1307  3.6821    56.7    12.9  25.7
...
2024 02 25    01 20 55.9 +05 43 36   4.3298  3.7021    45.4    11.0  25.9
...
2024 03 04    01 29 12.3 +06 22 57   4.4234  3.7123    39.5     9.8  25.9
...
2024 03 10    01 35 35.8 +06 53 03   4.4873  3.7199    35.2     8.9  26.0
2024 03 11    01 36 40.6 +06 58 06   4.4974  3.7211    34.5     8.7  26.0
2024 03 12    01 37 45.6 +07 03 09   4.5073  3.7224    33.8     8.5  26.0
...
2024 03 18    01 44 20.0 +07 33 33   4.5635  3.7297    29.5     7.6  26.0
...
2024 03 26    01 53 16.2 +08 13 57   4.6289  3.7393    23.9     6.2  26.1
...
2024 04 10    02 10 26.8 +09 28 05   4.7218  3.7566    13.8     3.6  26.1

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-E143