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  • MPEC 2022-X38 : 2020 YH

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    M.P.E.C. 2022-X38                              Issued 2022 December 2, 14:06 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                     2020 YH                                 
    
    
                               Revision to MPEC 2020-Y35                            
    
    Additional Observations:
         K20Y00H KC2022 11 19.52101 10 47 57.24 +24 06 50.8          22.3 RoEX038291
         K20Y00H KC2022 11 19.52847 10 47 58.04 +24 06 56.2          22.4 RoEX038291
         K20Y00H 0C2022 11 24.64163810 58 06.741+25 15 08.33         22.42GVEX038T12
         K20Y00H 0C2022 11 24.64319610 58 06.918+25 15 09.70         22.50GVEX038T12
         K20Y00H 0C2022 11 24.64500410 58 07.124+25 15 11.33         22.33GVEX038T12
    
    Observer details:
    291 LPL/Spacewatch II.  Observer A. F. Tubbiolo.  1.8-m f/2.7 reflector + CCD.
    T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
        2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    221119 291  0.7+  2.6+    221124 T12  0.2+  2.5+    MPO600179   +0.01 days
    
    Orbital elements:
    2020 YH                                                  Earth MOID = 0.0808 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M 287.44665              (2000.0)            P               Q                  
    n   1.54213391     Peri.  248.75542     +0.11931167     +0.99109003             
    a   0.7419728      Node    28.29664     -0.85834095     +0.13293431             
    e   0.4200627      Incl.    7.17476     -0.49901457     +0.00830766             
    P   0.64           H   22.03          G   0.15           U   2                  
    Residuals in seconds of arc
    201216 G96  0.2+  0.1+    201217 H21  0.1+  0.3+    210106 F51  0.1-  0.1+
    201216 G96  0.1-  0.1-    201218 H21  0.0   0.4+    210106 F51  0.1+  0.1-
    201216 G96  0.0   0.2+    201218 H21  0.2+  0.3+    210106 F51  0.0   0.1+
    201216 V06  0.2+  0.2+    201218 H21  0.0   0.3+    210207 291  0.7+  0.3-
    201216 V06  0.2-  0.3-    201219 I52  0.0   0.0     210207 291  0.2-  0.1+
    201216 V06  0.2-  0.0     201219 I52  0.2+  0.0     210226 695  0.2-  0.0
    201216 V06  0.0   0.3-    201219 I52  0.1+  0.3+    210226 695  0.1+  0.3+
    201216 F51  0.1-  0.0     201219 I52  0.0   0.2-    210226 695  0.1-  0.3+
    201217 I52  0.4-  0.3-    201219 033  0.3-  0.9+    221119 291  0.2-  0.3+
    201217 I52  0.0   0.3-    201219 033  0.6+  0.1+    221119 291  0.2-  0.1-
    201217 I52  0.0   0.1+    201220 I52  0.1+  0.1-    221124 T12  0.0   0.0
    201217 033  0.3+  0.0     201220 I52  0.2-  0.3-    221124 T12  0.0   0.0
    201217 033  0.1+  0.2-    201220 I52  0.1+  0.2-    221124 T12  0.0   0.0
    201217 033  0.0   0.0     201220 I52  0.1+  0.3-
    
    Ephemeris:
    2020 YH                  a,e,i = 0.74, 0.42, 7                   q = 0.4303
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 11 02    10 19 08.6 +20 39 25   0.4036  0.9375    70.4    85.7    22.9
    ...
    2022 11 17    10 43 12.4 +23 35 35   0.3697  1.0019    81.3    77.3    22.6
    ...
    2022 11 25    10 58 50.2 +25 20 10   0.3433  1.0257    86.6    73.9    22.3
    ...
    2022 12 01    11 11 45.4 +26 52 02   0.3206  1.0387    90.3    71.7    22.2
    2022 12 02    11 14 01.4 +27 08 51   0.3166  1.0405    90.9    71.4    22.1
    2022 12 03    11 16 19.6 +27 26 08   0.3125  1.0422    91.5    71.0    22.1
    ...
    2022 12 09    11 31 00.4 +29 21 36   0.2875  1.0498    95.0    69.2    21.9
    ...
    2022 12 17    11 53 39.2 +32 35 27   0.2525  1.0537    99.0    67.3    21.5
    ...
    2023 01 01    12 55 21.1 +41 41 10   0.1875  1.0416   103.0    66.9    20.8
    
    A. U. Tomatic                (C) Copyright 2022 MPC           M.P.E.C. 2022-X38
    


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