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  • MPEC 2021-J182 : 2021 JF5

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    M.P.E.C. 2021-J182                                 Issued 2021 May 12, 11:51 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
    
                                    2021 JF5                                 
    
    
    Observations:
         K21J05F  C2021 05 07.34906 15 54 25.65 +10 39 17.8          21.1 GVEJ182G96
         K21J05F  C2021 05 07.35417 15 54 25.54 +10 39 17.4          21.4 GVEJ182G96
         K21J05F  C2021 05 07.35926 15 54 25.48 +10 39 17.6          21.5 GVEJ182G96
         K21J05F* C2021 05 11.52128615 53 04.508+10 28 04.19         21.83wUEJ182F51
         K21J05F  C2021 05 11.53379315 53 04.122+10 28 00.80         21.82wUEJ182F51
         K21J05F  C2021 05 11.54629515 53 03.749+10 27 57.40         21.75wUEJ182F51
         K21J05F KC2021 05 12.24813015 52 47.83 +10 24 34.8          20.9 VuEJ182H21
         K21J05F KC2021 05 12.25705915 52 47.57 +10 24 32.5          21.3 VuEJ182H21
         K21J05F KC2021 05 12.26179615 52 47.42 +10 24 31.1          21.4 VuEJ182H21
         K21J05F KC2021 05 12.28121515 52 47.29 +10 24 27.1          20.87GVEJ182I52
         K21J05F KC2021 05 12.28915915 52 47.07 +10 24 24.8          20.97GVEJ182I52
         K21J05F KC2021 05 12.29709915 52 46.78 +10 24 22.7          21.58GVEJ182I52
         K21J05F KC2021 05 12.30503915 52 46.54 +10 24 20.3          21.28GVEJ182I52
         K21J05F  C2021 05 12.44143115 52 42.16 +10 23 37.2          21.5 GVEJ182H01
         K21J05F  C2021 05 12.44653915 52 42.00 +10 23 35.6          21.3 GVEJ182H01
         K21J05F  C2021 05 12.45241515 52 41.83 +10 23 33.6          21.1 GVEJ182H01
         K21J05F  C2021 05 12.46217815 52 41.54 +10 23 30.5          21.1 GVEJ182H01
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
        Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
        Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
        R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer H. Groeller.  Measurers E. J. Christensen, B.
        Gray, D. Rankin, F. C. Shelly.  1.5-m reflector + 10K CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Linder, R. Holmes, L. Horn.  0.81-m f/4.0 astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer T. A. Pruyne.
        Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
        Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
        Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
        reflector + CCD.
    
    Orbital elements:
    2021 JF5                                                 Earth MOID = 0.1578 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
    M 311.58201              (2000.0)            P               Q                  
    n   0.22839800     Peri.  199.95928     +0.29933302     +0.92086866             
    a   2.6505816      Node    88.10965     -0.83797068     +0.37891771             
    e   0.5614143      Incl.   14.47380     -0.45629474     -0.09177298             
    P   4.32           H   21.62          G   0.15           U   9                  
    Residuals in seconds of arc
    210507 G96  0.3-  0.2-    210512 H21  0.3-  0.2-    210512 I52  0.1+  0.1+
    210507 G96  0.2-  0.2-    210512 H21  0.0   0.1+    210512 H01  0.0   0.0
    210507 G96  0.5+  0.4+    210512 H21  0.1-  0.1+    210512 H01  0.1-  0.0
    210511 F51  0.0   0.0     210512 I52  0.0   0.0     210512 H01  0.0   0.1-
    210511 F51  0.0   0.0     210512 I52  0.5+  0.1-    210512 H01  0.1-  0.0
    210511 F51  0.1+  0.0     210512 I52  0.1-  0.2+
    
    Ephemeris:
    2021 JF5                 a,e,i = 2.65, 0.56, 14                  q = 1.1625
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 04 12    15 50 42.0 +08 51 05   0.6895  1.5883   138.9    24.5    23.0
    ...
    2021 04 27    15 55 20.7 +10 21 25   0.5425  1.4866   145.8    22.4    22.2
    ...
    2021 05 05    15 54 56.6 +10 40 23   0.4749  1.4349   148.4    21.6    21.8
    ...
    2021 05 11    15 53 16.8 +10 30 17   0.4291  1.3977   149.8    21.3    21.6
    2021 05 12    15 52 53.8 +10 25 58   0.4219  1.3917   150.0    21.3    21.5
    2021 05 13    15 52 28.9 +10 20 46   0.4147  1.3857   150.2    21.3    21.5
    ...
    2021 05 19    15 49 26.9 +09 29 09   0.3743  1.3507   150.8    21.5    21.2
    ...
    2021 05 27    15 44 17.2 +07 13 20   0.3264  1.3073   150.6    22.4    20.8
    ...
    2021 06 11    15 33 55.0 -01 46 03   0.2555  1.2380   147.2    26.3    20.3
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J182
    


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