[Iaude] MPEC K154: 2020 KB4 [a=1.05,e=0.36,i=3.4,H=26.9]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2020-K154                                 Issued 2020 May 24, 15:05 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 KB4                                    


Observations:
     K20K04B* C2020 05 23.39782515 48 16.647-19 16 49.20         21.15wUEK154F51
     K20K04B  C2020 05 23.41006315 48 12.417-19 16 04.12         21.08wUEK154F51
     K20K04B  C2020 05 23.42228815 48 08.155-19 15 19.31         21.39wUEK154F51
     K20K04B  C2020 05 24.23695 15 44 33.94 -18 29 06.7          21.2 GVEK154I52
     K20K04B  C2020 05 24.24652 15 44 31.12 -18 28 38.3          22.3 GVEK154I52
     K20K04B  C2020 05 24.25130 15 44 29.78 -18 28 22.0          21.3 GVEK154I52
     K20K04B ^C2020 05 24.38430515 43 57.307-18 21 04.60         21.57GVEK154568
     K20K04B ^C2020 05 24.38525115 43 57.032-18 21 01.71         21.70GVEK154568
     K20K04B ^C2020 05 24.38620015 43 56.757-18 20 58.80         21.63GVEK154568
     K20K04B ^C2020 05 24.38715715 43 56.474-18 20 55.84         21.47GVEK154568

Observer details:
568 Mauna Kea.  Observers R. Wainscoat, C. Wipper, S. Prunet.  Measurers R.
    Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
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.
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 KB4                                                 Earth MOID = 0.0085 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Pike
M  80.58113              (2000.0)            P               Q
n   0.92115189     Peri.  245.38376     -0.59868339     -0.79932874
a   1.0461209      Node   241.49017     +0.75445462     -0.54114469
e   0.3640907      Incl.    3.35955     +0.26902867     -0.26122020
P   1.07           H   26.9           G   0.15           U   9
Residuals in seconds of arc
200523 F51  0.1-  0.2-    200524 I52  0.6-  1.1-    200524 568  0.1+  0.1+
200523 F51  0.2+  0.1+    200524 I52  0.2+  0.2+    200524 568  0.1+  0.2+
200523 F51  0.0   0.0     200524 568  0.1+  0.1+
200524 I52  0.2-  0.3+    200524 568  0.1+  0.1+

Ephemeris:
2020 KB4                 a,e,i = 1.05, 0.36, 3                   q = 0.6652
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 04 24    02 38 01.2 +03 12 07   0.1210  0.8880    12.3   166.0
...
2020 05 09    01 25 42.5 -15 16 00   0.03143 0.9859    40.7   138.1    26.0
...
2020 05 17    17 09 11.6 -33 18 05   0.02758 1.0364   154.9    24.4    20.3
...
2020 05 23    15 50 15.6 -19 40 43   0.06032 1.0728   177.6     2.3    21.2
2020 05 24    15 45 31.1 -18 40 19   0.06624 1.0788   175.2     4.5    21.6
2020 05 25    15 41 37.0 -17 49 38   0.07223 1.0847   173.1     6.5    21.9
...
2020 05 31    15 28 10.3 -14 46 12   0.1095  1.1192   163.2    15.2    23.2
...
2020 06 08    15 22 07.5 -13 08 53   0.1622  1.1626   153.7    22.8    24.4
...
2020 06 23    15 24 07.3 -12 38 07   0.2707  1.2357   139.8    32.0    25.9

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-K154