[Iaude] MPEC K46: 2021 KX [a=1.62,e=0.39,i=10.3,H=24.5]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed May 19 20:10:04 EDT 2021


M.P.E.C. 2021-K46                                  Issued 2021 May 20, 00:08 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 KX                                     


Observations:
     K21K00X* C2021 05 18.26822314 07 48.32 +25 29 19.7          20.24GVEK046G96
     K21K00X  C2021 05 18.27698814 07 57.13 +25 29 17.9          20.28GVEK046G96
     K21K00X  C2021 05 18.28217314 08 02.34 +25 29 17.1          20.06GVEK046G96
     K21K00X  C2021 05 18.28737114 08 07.59 +25 29 15.8          19.81GVEK046G96
     K21K00X  C2021 05 18.33566014 08 55.83 +25 28 56.6          20.7 GVEK046H01
     K21K00X  C2021 05 18.33946014 08 59.67 +25 28 55.3          20.1 GVEK046H01
     K21K00X  C2021 05 18.34894314 09 09.28 +25 28 51.6          20.1 GVEK046H01
     K21K00X KC2021 05 18.35294314 09 13.63 +25 28 56.3          19.91GVEK046I52
     K21K00X KC2021 05 18.35393014 09 14.63 +25 28 56.0          20.24GVEK046I52
     K21K00X KC2021 05 18.35491614 09 15.66 +25 28 55.0          20.38GVEK046I52
     K21K00X KC2021 05 18.35590414 09 16.62 +25 28 54.8          20.00GVEK046I52
     K21K00X  C2021 05 18.36273814 09 23.22 +25 28 46.4          20.0 GVEK046H01
     K21K00X  C2021 05 18.43769314 10 44.075+25 29 17.76         20.74wUEK046F51
     K21K00X  C2021 05 18.45023614 10 56.485+25 29 12.97         20.70wUEK046F51
     K21K00X  C2021 05 18.46273614 11 08.865+25 29 07.78         20.33wUEK046F51
     K21K00X KC2021 05 18.90083214 18 39.65 +25 25 55.0          20.0 GVEK046I93
     K21K00X KC2021 05 18.90994314 18 48.29 +25 25 51.1          19.7 GVEK046I93
     K21K00X KC2021 05 18.98477 14 19 57.05 +25 25 12.9          20.2 GVEK046204
     K21K00X KC2021 05 19.00204 14 20 13.15 +25 25 02.7                VEK046204
     K21K00X KC2021 05 19.02352414 20 40.35 +25 27 27.8          20.0 GXEK046Y00
     K21K00X KC2021 05 19.02875014 20 45.13 +25 27 25.6          20.2 GXEK046Y00
     K21K00X KC2021 05 19.03815714 20 53.67 +25 27 21.8          19.9 GXEK046Y00
     K21K00X  C2021 05 19.29740 14 24 57.66 +25 22 59.9          20.4 GVEK046654
     K21K00X  C2021 05 19.32800 14 25 24.75 +25 22 39.3          20.3 GVEK046654
     K21K00X  C2021 05 19.35347 14 25 47.32 +25 22 20.8          20.5 GVEK046654
     K21K00X KC2021 05 19.35597214 25 48.58 +25 22 19.9          20.50GVEK046I52
     K21K00X KC2021 05 19.35688614 25 49.36 +25 22 18.7          20.08GVEK046I52
     K21K00X KC2021 05 19.35780114 25 50.20 +25 22 18.1          19.83GVEK046I52
     K21K00X KC2021 05 19.35871614 25 51.02 +25 22 17.9          20.26GVEK046I52
     K21K00X KC2021 05 19.84762114 33 21.20 +25 16 16.2          20.1 GVEK046587
     K21K00X KC2021 05 19.84860414 33 22.01 +25 16 15.5          20.2 GVEK046587
     K21K00X KC2021 05 19.85045514 33 23.56 +25 16 14.0          19.9 GVEK046587
     K21K00X KC2021 05 19.91099114 34 14.97 +25 15 17.9          20.0 GVEK046J95
     K21K00X KC2021 05 19.92158814 34 23.82 +25 15 09.7          19.6 GVEK046J95
     K21K00X KC2021 05 19.92339614 34 25.07 +25 15 04.3          20.1 GVEK046Z99
     K21K00X KC2021 05 19.92873014 34 29.51 +25 15 00.2          20.5 GVEK046Z99
     K21K00X KC2021 05 19.93414414 34 34.01 +25 14 56.0          19.9 GVEK046Z99
     K21K00X KC2021 05 19.93524014 34 35.14 +25 14 59.2          20.4 GVEK046J95
     K21K00X KC2021 05 19.94766214 34 45.38 +25 14 49.8          20.4 GVEK046J95

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
587 Sormano.  Observers E. Colzani, E. Valli.  Measurer P. Sicoli.  0.5-m
    f/6.8 reflector + CCD.
654 Table Mountain Observatory, Wrightwood-PHMC.  Observers P. Choi, N. Saini,
    C. Zhai, R. Trahan, M. Shao.
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 D. Rankin.  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.
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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer E. J. Christensen.
    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.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
    + CCD.
Y00 SONEAR Observatory, Oliveira.  Observers C. Jacques, E. Pimentel, J.
    Barros.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CCD.
Z99 Clixby Observatory, Cleethorpes.  Observer A. Mickleburgh.  0.36-m f/8
    Schmidt-Cassegrain + CCD.

Orbital elements:
2021 KX                                                  Earth MOID = 0.0072 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 303.61927              (2000.0)            P               Q                  
n   0.47841919     Peri.  331.32737     -0.95303461     +0.27481521             
a   1.6190627      Node   225.22605     -0.23220265     -0.93284525             
e   0.3925865      Incl.   10.32917     -0.19444015     -0.23297282             
P   2.06           H   24.59          G   0.15           U   8                  
Residuals in seconds of arc
210518 G96  0.1+  0.1+    210518 F51  0.1-  0.1+    210519 I52  0.4-  0.4-
210518 G96  0.1-  0.1-    210518 F51  0.6+  0.0     210519 I52  0.0   0.3-
210518 G96  0.2-  0.1+    210518 I93  0.2-  0.2-    210519 I52  0.0   0.2+
210518 G96  0.0   0.0     210518 I93  0.8+  0.8-    210519 587  0.1-  0.3+
210518 H01  0.0   0.1-    210518 204  0.3+  0.2+    210519 587  0.3-  0.2+
210518 H01  0.0   0.1+    210519 204  0.1-  0.2+    210519 587  0.2-  0.1-
210518 H01  0.1+  0.1-    210519 Y00  0.3+  0.0     210519 J95  0.0   0.2+
210518 I52  0.1-  0.1+    210519 Y00  0.5+  0.1-    210519 J95  0.6+  0.2-
210518 I52  0.1-  0.2+    210519 Y00  0.3+  0.0     210519 Z99  0.2-  0.1-
210518 I52  0.4+  0.4-    210519 654  0.0   0.1+    210519 Z99  0.1-  0.1-
210518 I52  0.1-  0.2-    210519 654  0.1-  0.0     210519 Z99  0.1-  0.1-
210518 H01  0.3-  0.0     210519 654  0.1+  0.1+    210519 J95  0.6+  0.3-
210518 F51 (0.7-  0.1+)   210519 I52  0.0   0.0     210519 J95  0.0   0.0

Ephemeris:
2021 KX                  a,e,i = 1.62, 0.39, 10                  q = 0.9834
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 20    06 51 01.0 -09 53 19   0.1192  0.9857    77.5    95.7    23.4
...
2021 05 05    08 51 20.6 +04 12 07   0.05488 1.0097    89.7    87.2    21.4
...
2021 05 13    12 04 25.3 +22 09 33   0.04548 1.0322   117.5    60.2    20.1
...
2021 05 19    14 20 14.2 +25 25 59   0.06189 1.0530   130.6    46.8    20.4
2021 05 20    14 35 29.7 +25 15 07   0.06585 1.0568   131.6    45.7    20.5
2021 05 21    14 48 58.2 +24 59 25   0.07003 1.0606   132.4    44.8    20.7
...
2021 05 27    15 43 14.1 +22 48 43   0.09820 1.0851   135.3    41.1    21.3
...
2021 06 04    16 18 31.2 +19 53 30   0.1405  1.1215   137.1    38.0    22.1
...
2021 06 19    16 47 41.6 +14 53 47   0.2291  1.1980   138.8    34.0    23.2

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-K46




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