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  • MPEC 2022-W181 : 2020 NU

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    M.P.E.C. 2022-W181                            Issued 2022 November 25, 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 NU                                 
    
    
                               Revision to MPEC 2020-N53                            
    
    Additional Observations:
         K20N00U  C2022 10 29.26326200 43 50.818+27 33 13.87         22.78GVEW181F52
         K20N00U  C2022 10 29.27343900 43 50.505+27 32 57.04         21.83GVEW181F52
         K20N00U 0C2022 10 29.45587800 43 45.016+27 27 50.15         22.71GVEW181T12
         K20N00U 0C2022 10 29.46177500 43 44.845+27 27 40.03         22.70GVEW181T12
         K20N00U 0C2022 10 29.46778200 43 44.674+27 27 29.76         22.74GVEW181T12
         K20N00U  C2022 10 31.26898900 43 10.069+26 37 25.18         22.34GVEW181F52
         K20N00U  C2022 10 31.28034800 43 09.783+26 37 06.64         22.29GVEW181F52
         K20N00U  C2022 10 31.29170200 43 09.521+26 36 48.01         21.87GVEW181F52
         K20N00U 0C2022 11 24.29820500 49 15.248+17 37 48.50         23.93GVEW181T12
    
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
        Lowe, A. Schultz, I. Smith.  Measurers S. Chastel, J. Fairlamb, M. Huber,
        Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + 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 (or two decimals in degrees), reference and Delta-T
    221029 F52 0.04- 0.01-    221124 T12 0.03- 0.01-    MPO562951   -0.02 days
    
    Orbital elements:
    2020 NU                                                  Earth MOID = 0.2282 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 MPC                     
    M 130.75450              (2000.0)            P               Q                  
    n   0.51977647     Peri.   46.79664     +0.44424756     +0.87690728             
    a   1.5319984      Node   250.42288     -0.86806395     +0.37064800             
    e   0.2097920      Incl.   11.23156     -0.22160571     +0.30602890             
    P   1.90           H   22.49          G   0.15           U   1                  
    Residuals in seconds of arc
    200628 F52  0.0   0.1-    200713 H21  0.1-  0.1-    200813 H21  0.2+  0.1-
    200628 F52  0.0   0.1-    200713 654  0.1-  0.1-    200815 H21  0.3+  0.3+
    200628 F52  0.4+  0.1+    200713 654  0.1+  0.0     200815 H21  0.5+  0.5+
    200711 F52  0.0   0.1-    200713 654  0.2-  0.1+    200817 H21  0.1-  0.3-
    200711 F52  0.1+  0.1+    200713 654  0.1+  0.1-    200817 H21  0.1+  0.0
    200711 F52  0.1+  0.1+    200722 654  0.1+  0.1+    200817 H21  0.3+  0.3-
    200711 F52  0.2-  0.2+    200722 654  0.4-  0.1-    221029 F52  0.2+  0.2+
    200712 568  0.0   0.0     200723 F52  0.3-  0.1+    221029 F52  0.0   0.2+
    200712 568  0.0   0.0     200723 F52  0.0   0.2-    221029 T12  0.0   0.0
    200712 568  0.0   0.0     200723 F52  0.0   0.2-    221029 T12  0.0   0.0
    200712 L01  0.1+  1.1+    200807 H21  0.2+  0.0     221029 T12  0.0   0.0
    200712 L01  0.1+  0.4+    200807 H21  0.0   0.4-    221031 F52  0.0   0.1+
    200712 L01  0.4-  1.0+    200808 H21  0.5-  0.6+    221031 F52  0.2-  0.1+
    200712 L01  1.0-  0.8+    200808 H21  0.3-  0.5+    221031 F52  0.1-  0.1+
    200713 H36  0.9-  0.7+    200808 H21  0.0   0.4+    221124 T12  0.0   0.0
    200713 H21  0.2+  0.1-    200813 H21  0.1+  0.2+
    200713 H36  0.7+  0.3-    200813 H21  0.0   0.0
    
    Ephemeris:
    2020 NU                  a,e,i = 1.53, 0.21, 11                  q = 1.2106
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 10 26    00 45 21.4 +29 05 27   0.5070  1.4715   155.8    16.1    22.7
    ...
    2022 11 10    00 42 37.4 +22 25 21   0.5842  1.5160   147.5    20.6    23.2
    ...
    2022 11 18    00 45 20.9 +19 30 52   0.6406  1.5393   140.8    23.9    23.6
    ...
    2022 11 24    00 49 02.2 +17 42 41   0.6890  1.5566   135.7    26.3    23.8
    2022 11 25    00 49 46.6 +17 26 35   0.6975  1.5595   134.8    26.7    23.9
    2022 11 26    00 50 33.0 +17 11 02   0.7062  1.5623   134.0    27.1    23.9
    ...
    2022 12 02    00 55 51.4 +15 48 57   0.7608  1.5793   128.9    29.0    24.2
    ...
    2022 12 10    01 04 28.6 +14 27 21   0.8395  1.6014   122.5    31.2    24.5
    ...
    2022 12 25    01 24 20.1 +13 05 14   1.0020  1.6410   111.5    33.9    25.0
    
    A. U. Tomatic                (C) Copyright 2022 MPC           M.P.E.C. 2022-W181
    


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