[Iaude] MPEC X183: 2020 BU13 [a=2.47,e=0.97,i=9.2,H=21.28]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 10 18:22:41 EST 2023


M.P.E.C. 2023-X183                            Issued 2023 December 10, 23:21 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

                                   2020 BU13                                    


                           Revision to MPEC 2020-B303                           

Additional Observations:
     K20B13U tC2023 12 06.53156 10 43 36.12 -07 14 16.0          23.0 r EX183G37
     K20B13U tC2023 12 07.51802 10 40 21.74 -07 08 34.3          23.1 r EX183G37
     K20B13U tC2023 12 07.53201 10 40 18.89 -07 08 29.3          23.1 r EX183G37
     K20B13U tC2023 12 07.54333 10 40 16.61 -07 08 25.3          23.1 r EX183G37

Observer details:
G37 Lowell Discovery Telescope.  Observer Q.-Z. Ye.  4.3-m reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
231206 G37 0.04- 0.02-    231207 G37 0.04- 0.02-    MPO782687   -0.00 days

Orbital elements:
2020 BU13                                                Earth MOID = 0.0646 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 350.09372              (2000.0)            P               Q                  
n   0.25378784     Peri.  127.56662     +0.72303695     +0.69037134             
a   2.4707123      Node   188.86914     -0.67339615     +0.69642056             
e   0.9702759      Incl.    9.17976     -0.15412719     +0.19592299             
P   3.88           H   21.28          G   0.15           U   1                  
Residuals in seconds of arc
200103 W84  0.2-  0.1-    200126 568 (0.2+  0.8-)   200129 291  0.6-  0.1+
200103 W84  0.2+  0.3-    200126 568 (0.4+  0.9-)   200129 291  0.1+  0.1+
200116 I41  0.1+  0.7-    200126 568 (0.2+  0.5-)   200129 291  0.3+  0.3+
200116 I41  0.1-  0.1-    200126 568 (0.2+  0.6-)   200129 568  0.0   0.0
200125 F51  0.1+  0.1-    200126 F52  0.0   0.2-    200129 568  0.1+  0.1-
200125 F51  0.1+  0.1-    200126 F52  0.0   0.2+    200129 568  0.0   0.0
200125 F51  0.0   0.2+    200126 F52  0.1-  0.1+    200129 568  0.1-  0.0
200125 F51  0.1-  0.2+    200126 K92  0.3+  0.2+    200129 568  0.0   0.1-
200126 291  0.3-  0.3-    200126 K92  0.4+  0.1+    200129 568  0.1-  0.1+
200126 291  0.6+  0.3+    200126 K92  0.4+  0.2-    200129 568  0.0   0.1-
200126 I52  0.2+  0.2-    200127 H21  0.2-  0.2+    200219 T12  0.1-  0.1+
200126 I52  0.2+  0.0     200127 H21  0.1-  0.0     200219 T12  0.0   0.2+
200126 291  0.2-  0.1-    200127 H21  0.2-  0.1+    231206 G37  0.0   0.1-
200126 I52  0.1-  0.3+    200127 H21  0.2-  0.0     231207 G37  0.0   0.1-
200126 I52  0.4+  0.4-    200128 291  0.1+  0.1-    231207 G37  0.2-  0.1-
200126 568 (0.3+  0.6-)   200128 291  0.1+  0.6-    231207 G37  0.0   0.2-

Ephemeris:
2020 BU13                a,e,i = 2.47, 0.97, 9                   q = 0.0734
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 10    12 02 00.7 -08 40 35   0.8151  0.6903    43.6    81.8    22.9
...
2023 11 25    11 18 08.5 -07 59 18   0.8124  1.0294    69.0    63.5    23.1
...
2023 12 03    10 54 46.5 -07 31 44   0.7996  1.1853    82.5    55.5    23.2
...
2023 12 09    10 35 23.4 -06 59 11   0.7889  1.2942    93.0    49.5    23.2
2023 12 10    10 31 57.8 -06 52 25   0.7873  1.3118    94.8    48.4    23.2
2023 12 11    10 28 28.5 -06 45 13   0.7857  1.3293    96.7    47.4    23.2
...
2023 12 17    10 06 18.2 -05 52 14   0.7795  1.4308   107.9    40.9    23.1
...
2023 12 25    09 33 51.5 -04 13 37   0.7836  1.5591   123.4    31.8    23.1
...
2024 01 09    08 30 49.7 -00 00 27   0.8541  1.7811   151.5    15.3    23.0

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-X183




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