[Iaude] MPEC J22: 2021 QO42 [a=2.16,e=0.44,i=6.1,H=21.33]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Thu May 2 10:15:37 EDT 2024


M.P.E.C. 2024-J22                                   Issued 2024 May 2, 14:14 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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 QO42                                    


                           Revision to MPEC 2021-S37                            

Additional Observations:
     K21Q42O KC2024 04 17.30652214 06 38.855-21 25 14.95         21.96GVEJ022V06
     K21Q42O KC2024 04 17.31923314 06 37.804-21 25 15.60         22.21GVEJ022V06
     K21Q42O KC2024 04 17.33194414 06 36.785-21 25 17.33         22.10GVEJ022V06
     K21Q42O KC2024 04 17.34465114 06 35.777-21 25 18.77         21.99GVEJ022V06
     K21Q42O KC2024 05 01.30581213 46 19.999-21 25 39.25         22.35GVEJ022V06
     K21Q42O KC2024 05 01.30979113 46 19.643-21 25 39.72         22.64GVEJ022V06
     K21Q42O KC2024 05 01.31376813 46 19.204-21 25 39.14         22.42GVEJ022V06
     K21Q42O KC2024 05 01.31774613 46 18.815-21 25 38.75         23.09GVEJ022V06

Observer details:
V06 Catalina Sky Survey-Kuiper.  Observers J. B. Fazekas, V. F. Carvajal, G.
    J. Leonard.  Measurers T. Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas,
    D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A.
    Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C.
    Shelly, K. W. Wierzchos.  1.55-m reflector + 1K CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
240417 V06 54.8+ 26.1+    240501 V06 57.0+ 31.8+    E2024-DC2   -0.00 days

Orbital elements:
2021 QO42                                                Earth MOID = 0.2115 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 309.49384              (2000.0)            P               Q                  
n   0.31106864     Peri.  311.63529     +0.60093143     +0.79925229             
a   2.1572405      Node   355.27617     -0.69796767     +0.51935868             
e   0.4399312      Incl.    6.12448     -0.38951579     +0.30242742             
P   3.17           H   21.33          G   0.15           U   2                  
Residuals in seconds of arc
210831 F52  0.0   0.2+    210918 G96  0.0   0.1-    211013 F52  0.0   0.0
210831 F52  0.0   0.1-    210918 G96  0.3-  0.3-    211013 F52  0.1-  0.1+
210831 F52  0.0   0.1+    210918 G96  0.2-  0.3-    211013 F52  0.1+  0.1+
210831 F52  0.0   0.1+    210918 G96  0.1+  0.2-    211013 F52  0.1+  0.1+
210908 F52  0.1+  0.1+    210929 D29  0.8+  0.4-    240417 V06  0.0   0.1+
210908 F52  0.1-  0.0     210929 D29  0.2-  0.2+    240417 V06  0.2-  0.6+
210908 F52  0.0   0.0     210929 D29  0.7-  0.4-    240417 V06  0.0   0.0
210909 G96  0.2+  0.2+    211002 F52  0.1-  0.0     240417 V06  0.4+  0.4-
210909 G96  0.1+  0.3-    211002 F52  0.2-  0.1+    240501 V06  0.1+  0.5+
210909 G96  0.1-  0.1-    211002 F52  0.0   0.1-    240501 V06  0.5+  0.3-
210909 G96  0.2+  0.2-    211007 G96  0.0   0.1+    240501 V06  0.2-  0.1-
210911 F52  0.1-  0.0     211007 G96  0.4+  0.3+    240501 V06  0.3-  0.0
210911 F52  0.1+  0.1-    211007 G96  0.3-  0.5-
210911 F52  0.0   0.1-    211007 G96  0.0   0.3-

Ephemeris:
2021 QO42                a,e,i = 2.16, 0.44, 6                   q = 1.2082
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 02    14 22 00.9 -20 41 33   0.9572  1.8977   151.8    14.4    23.4
...
2024 04 17    14 07 02.4 -21 24 39   0.8197  1.8126   167.4     7.0    22.7
...
2024 04 25    13 55 55.8 -21 30 15   0.7662  1.7668   171.0     5.1    22.4
...
2024 05 01    13 46 48.6 -21 25 55   0.7353  1.7323   167.2     7.4    22.4
2024 05 02    13 45 15.8 -21 24 31   0.7310  1.7266   166.3     8.0    22.4
2024 05 03    13 43 42.9 -21 22 56   0.7268  1.7209   165.3     8.6    22.4
...
2024 05 09    13 34 33.3 -21 10 07   0.7061  1.6865   158.5    12.7    22.5
...
2024 05 17    13 23 26.3 -20 47 12   0.6894  1.6409   148.9    18.5    22.6
...
2024 06 01    13 09 26.3 -20 06 49   0.6839  1.5566   131.9    29.0    22.7

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-J22





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