[Iaude] MPEC K175: 2020 KR4 [a=1.84,e=0.91,i=15.0,H=20.9,PHA]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue May 26 07:34:57 EDT 2020


M.P.E.C. 2020-K175                                 Issued 2020 May 26, 11:33 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2020 KR4                                    


Observations:
     K20K04R  C2020 05 17.47350517 03 30.589-11 52 41.39         21.8 GVEK175F52
     K20K04R  C2020 05 17.48469417 03 28.690-11 52 35.99         21.9 GVEK175F52
     K20K04R  C2020 05 17.49583917 03 26.790-11 52 29.81         21.6 GVEK175F52
     K20K04R  C2020 05 20.46909716 54 29.145-11 26 02.91         21.4 GVEK175F52
     K20K04R  C2020 05 20.50873816 54 21.020-11 25 40.32         21.5 GVEK175F52
     K20K04R* C2020 05 24.44419916 39 37.640-10 43 51.38         20.94wUEK175F52
     K20K04R  C2020 05 24.45607816 39 34.566-10 43 42.83         21.04wUEK175F52
     K20K04R  C2020 05 24.46794116 39 31.481-10 43 34.64         20.96wUEK175F52
     K20K04R  C2020 05 24.47978816 39 28.395-10 43 26.07         21.25wUEK175F52
     K20K04R !C2020 05 25.31017 16 35 53.56 -10 33 26.7          20.8 RtEK175673
     K20K04R !C2020 05 25.32029 16 35 50.79 -10 33 19.2                tEK175673
     K20K04R KC2020 05 26.27433416 31 29.63 -10 21 11.1          20.9 VuEK175H21
     K20K04R KC2020 05 26.27594516 31 29.14 -10 21 10.0          20.7 VuEK175H21
     K20K04R KC2020 05 26.28166316 31 27.50 -10 21 05.9          20.3 VuEK175H21
     K20K04R  C2020 05 26.30265 16 31 21.85 -10 20 47.6          20.5 GVEK175I52
     K20K04R  C2020 05 26.30456 16 31 21.30 -10 20 46.4          20.1 GVEK175I52

Observer details:
673 Table Mountain Observatory, Wrightwood.  Observer J. Pittichova.  1.0-m
    f/15 reflector + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
    Lowe, A. Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y.
    Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau,
    J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier.  1.8-m Ritchey-Chretien
    + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  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:
2020 KR4                                            PHA, Earth MOID = 0.0148 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 334.45753              (2000.0)            P               Q
n   0.39343331     Peri.  314.75916     +0.79583616     -0.54915903
a   1.8445423      Node    80.18731     +0.60244765     +0.67578850
e   0.9056874      Incl.   15.00325     +0.06084110     +0.49166479
P   2.51           H   20.9           G   0.15           U   8
Residuals in seconds of arc
200517 F52  0.0   0.1-    200524 F52  0.0   0.1+    200526 H21  0.2-  0.1+
200517 F52  0.0   0.2-    200524 F52  0.1-  0.1-    200526 H21  0.1-  0.3-
200517 F52  0.1-  0.4+    200524 F52  0.3-  0.1+    200526 I52  0.1-  0.1+
200520 F52  0.2+  0.1+    200525 673  0.5+  0.0     200526 I52  0.1-  0.2-
200520 F52  0.1-  0.2-    200525 673  0.2+  0.0
200524 F52  0.1-  0.0     200526 H21  0.2+  0.3+

Ephemeris:
2020 KR4                 a,e,i = 1.84, 0.91, 15                  q = 0.1740
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 04 26    17 33 54.2 -13 55 04   1.0534  1.8794   131.7    23.6    23.5
...
2020 05 11    17 17 58.9 -12 39 26   0.7541  1.7023   149.3    17.7    22.4
...
2020 05 19    16 59 07.4 -11 39 28   0.6115  1.6005   160.2    12.4    21.6
...
2020 05 25    16 37 15.2 -10 37 04   0.5155  1.5203   167.5     8.3    20.9
2020 05 26    16 32 46.5 -10 24 32   0.5007  1.5066   168.2     7.9    20.8
2020 05 27    16 28 01.5 -10 11 16   0.4861  1.4928   168.5     7.8    20.8
...
2020 06 02    15 53 03.1 -08 32 25   0.4075  1.4078   162.2    12.7    20.4
...
2020 06 10    14 46 14.5 -05 11 00   0.3316  1.2879   140.3    30.2    20.4
...
2020 06 25    12 01 58.3 +03 32 30   0.3103  1.0389    85.4    77.3    21.1

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-K175




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