[Iaude] MPEC K83: 2021 KJ2 [a=1.07,e=0.45,i=13.4,H=26.3]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue May 25 03:13:53 EDT 2021


M.P.E.C. 2021-K83                                  Issued 2021 May 25, 07:12 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

                                    2021 KJ2                                    


Observations:
     K21K02J* C2021 05 22.37358416 06 42.35 -11 31 32.6          19.60GVEK083G96
     K21K02J  C2021 05 22.37876116 06 37.89 -11 30 02.3          19.83GVEK083G96
     K21K02J  C2021 05 22.38395616 06 33.44 -11 28 32.2          19.44GVEK083G96
     K21K02J  C2021 05 22.38913616 06 28.99 -11 27 02.3          19.63GVEK083G96
     K21K02J mC2021 05 23.21243815 58 03.08 -08 10 16.3          20.13GVEK083G96
     K21K02J mC2021 05 23.21284315 58 02.80 -08 10 11.9          19.49GVEK083G96
     K21K02J mC2021 05 23.21324815 58 02.53 -08 10 07.4          19.27GVEK083G96
     K21K02J mC2021 05 23.21365315 58 02.33 -08 10 01.1                VEK083G96
     K21K02J KC2021 05 24.25788415 50 35.32 -05 19 47.4          19.43GVEK083I52
     K21K02J KC2021 05 24.26115415 50 34.07 -05 19 20.7          20.63GVEK083I52
     K21K02J KC2021 05 24.26441915 50 32.63 -05 18 54.5                VEK083I52

Observer details:
G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  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.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer K. W. Wierzchos.
    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 KJ2                                                 Earth MOID = 0.0084 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 282.07276              (2000.0)            P               Q                  
n   0.88774516     Peri.  247.35911     -0.58541040     -0.78538037             
a   1.0722034      Node   240.03311     +0.80262820     -0.52642098             
e   0.4514964      Incl.   13.42794     +0.11437934     -0.32566644             
P   1.11           H   26.31          G   0.15           U   8                  
Residuals in seconds of arc
210522 G96  0.2+  0.1+    210523 G96  0.4+  0.3+    210524 I52  0.1+  0.4-
210522 G96  0.0   0.1+    210523 G96  0.1-  0.1-    210524 I52 (1.5+  0.2+)
210522 G96  0.2+  0.0     210523 G96  0.6-  0.4-    210524 I52  0.1-  0.3+
210522 G96  0.2-  0.1-    210523 G96 (0.1-  1.1+)

Ephemeris:
2021 KJ2                 a,e,i = 1.07, 0.45, 13                  q = 0.5881
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 25    03 09 19.9 -08 07 42   0.2117  0.8207    25.9   147.7    30.5
...
2021 05 10    02 57 16.6 -14 56 41   0.07677 0.9460    32.6   144.9    28.2
...
2021 05 18    00 01 14.2 -51 42 59   0.01444 1.0105    85.5    93.7    20.5
...
2021 05 24    15 52 06.5 -05 54 00   0.04584 1.0570   165.0    14.4    20.5
2021 05 25    15 46 46.7 -03 50 36   0.05417 1.0645   162.3    16.9    21.0
2021 05 26    15 42 54.4 -02 20 48   0.06260 1.0721   160.1    18.8    21.4
...
2021 06 01    15 32 13.7 +01 43 53   0.1144  1.1160   151.7    25.5    23.0
...
2021 06 09    15 28 43.7 +03 02 57   0.1861  1.1715   144.5    30.2    24.3
...
2021 06 24    15 31 59.4 +02 30 35   0.3288  1.2654   133.5    35.6    25.9

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-K83




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