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  • MPEC 2021-T254 : 2021 TH13

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    M.P.E.C. 2021-T254                             Issued 2021 October 14, 00:39 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2021 TH13                                
    
    
    Observations:
         K21T13H  C2021 10 06.58196502 27 22.931-01 35 02.20         22.58GVET254F51
         K21T13H  C2021 10 06.59453902 27 21.324-01 35 08.05         22.97GVET254F51
         K21T13H  C2021 10 06.60712002 27 19.737-01 35 14.15         23.30GVET254F51
         K21T13H  C2021 10 06.61965702 27 18.218-01 35 20.45         22.50GVET254F51
         K21T13H* C2021 10 13.40030902 02 44.920-03 37 54.38         20.81wUET254F52
         K21T13H  C2021 10 13.42712302 02 25.661-03 39 03.82         20.86wUET254F52
         K21T13H  C2021 10 13.44049002 02 15.857-03 39 38.73         20.57wUET254F52
         K21T13H  C2021 10 13.57304702 00 37.260-03 45 25.32         20.47GVET254F51
         K21T13H  C2021 10 13.57369702 00 36.784-03 45 26.71         19.91GVET254F51
         K21T13H IC2021 10 13.89466601 57 33.01 -04 03 42.4          20.2 GVET254L01
         K21T13H bC2021 10 13.89778301 57 30.44 -04 03 53.9          20.4 GVET254L01
         K21T13H bC2021 10 13.89934101 57 29.18 -04 03 58.1          20.5 GVET254L01
         K21T13H bC2021 10 13.90089801 57 27.90 -04 04 03.8          20.4 GVET254L01
         K21T13H KC2021 10 13.99130 01 56 15.38 -04 08 57.1          20.3 GVET254I93
         K21T13H KC2021 10 13.99516 01 56 11.97 -04 09 10.4          20.1 GVET254I93
         K21T13H KC2021 10 13.99903 01 56 08.58 -04 09 23.4          20.4 GVET254I93
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
        Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
        Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith.  Measurers K. Chambers, S. Chastel, T. de Boer, J. Fairlamb, H.
        Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
        Weryk.  1.8-m Ritchey-Chretien + CCD.
    I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    Orbital elements:
    2021 TH13                                                Earth MOID = 0.0002 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres                   
    M 168.35876              (2000.0)            P               Q                  
    n   1.05219472     Peri.  114.91736     -0.75315966     -0.65696981             
    a   0.9573527      Node    24.05833     +0.56970921     -0.67707596             
    e   0.2961925      Incl.    4.75328     +0.32891023     -0.33160038             
    P   0.94           H   28.14          G   0.15           U   6                  
    Residuals in seconds of arc
    211006 F51  0.1+  0.0     211013 F52  0.4-  0.0     211013 L01  0.4+  0.4-
    211006 F51  0.0   0.1+    211013 F51  0.0   0.2-    211013 I93  0.5-  0.5+
    211006 F51  0.2-  0.1+    211013 F51  0.0   0.1+    211013 I93  0.5-  0.1+
    211006 F51  0.0   0.3-    211013 L01  0.2-  0.7+    211013 I93  0.1+  0.2+
    211013 F52  0.0   0.0     211013 L01  0.2-  0.6-
    211013 F52  0.3+  0.1+    211013 L01  0.3+  0.3+
    
    Ephemeris:
    2021 TH13                a,e,i = 0.96, 0.30, 5                   q = 0.6738
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 09 14    02 25 31.2 -00 22 40   0.1778  1.1394   135.4    38.3    26.2
    ...
    2021 09 29    02 31 29.5 -00 53 27   0.09532 1.0833   147.3    30.0    24.5
    ...
    2021 10 07    02 26 54.8 -01 37 33   0.05402 1.0487   154.9    23.9    23.0
    ...
    2021 10 13    02 06 04.4 -03 19 48   0.02416 1.0209   162.7    16.9    21.0
    2021 10 14    01 56 05.8 -04 03 44   0.01930 1.0161   164.3    15.4    20.4
    2021 10 15    01 39 24.6 -05 14 55   0.01451 1.0113   165.5    14.3    19.8
    ...
    2021 10 21    15 39 12.9 -03 26 09   0.01636 0.9814    29.9   149.6    27.5
    ...
    2021 10 29    14 56 55.0 -00 37 52   0.05605 0.9399    16.8   162.2    33.6
    ...
    2021 11 13    14 45 39.0 -01 14 02   0.1381  0.8593    17.9   159.3    34.2
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-T254
    


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