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  • MPEC 2021-R141 : 2021 RS2

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    M.P.E.C. 2021-R141                            Issued 2021 September 7, 21:16 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 RS2                                 
    
    
    Observations:
         K21R02S* C2021 09 07.26480522 59 53.28 +15 30 06.6          21.11GVER141G96
         K21R02S  C2021 09 07.27045422 59 50.84 +15 30 20.6          21.17GVER141G96
         K21R02S  C2021 09 07.27609522 59 48.33 +15 30 34.3          20.95GVER141G96
         K21R02S  C2021 09 07.28176922 59 45.74 +15 30 48.2          20.73GVER141G96
         K21R02S KC2021 09 07.36473722 59 04.78 +15 33 56.3          20.69GVER141V06
         K21R02S KC2021 09 07.36651722 59 03.87 +15 33 59.6          20.85GVER141V06
         K21R02S KC2021 09 07.72928 22 58 02.16 +15 55 25.4          19.7 GXER141N88
         K21R02S KC2021 09 07.73198 22 57 59.71 +15 55 43.6          19.6 GXER141N88
         K21R02S KC2021 09 07.73473 22 57 57.16 +15 56 02.2          19.7 GXER141N88
         K21R02S 1C2021 09 07.78906 22 58 30.66 +15 56 36.1          20.0 VVER141033
         K21R02S 1C2021 09 07.78937 22 58 30.46 +15 56 39.4          20.6 VVER141033
         K21R02S 1C2021 09 07.78968 22 58 30.22 +15 56 42.6          20.2 VVER141033
         K21R02S 1C2021 09 07.79031 22 58 29.88 +15 56 47.7          20.7 VVER141033
         K21R02S 1C2021 09 07.83137122 57 59.17 +16 04 30.7                VER141246
         K21R02S 1C2021 09 07.84221322 57 49.09 +16 06 26.3                VER141246
         K21R02S 1C2021 09 07.84293822 57 48.35 +16 06 34.1                VER141246
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
        Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
        f/3 Schmidt + CCD.
    246 Klet Observatory-KLENOT.  Observers M. Tichy, J. Ticha, M. Honkova.
        Measurer M. Tichy.  1.06-m f/2.7 reflector + 2048x2048 CCD.
    G96 Mt. Lemmon Survey.  Observer K. W. Wierzchos.  Measurers E. J.
        Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
        Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector +
        10K CCD.
    N88 Xingming Observatory #3, Nanshan.  Observer X. Gao.  Measurer Q.-Z. Ye.
        0.6-m f/8 Ritchey-Chretien + CCD.
    V06 Catalina Sky Survey-Kuiper.  Observer D. C. Fuls.  Measurers E. J.
        Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
        Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector +
        1K CCD.
    
    Orbital elements:
    2021 RS2                                                 Earth MOID = 0.0003 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres                   
    M 272.59568              (2000.0)            P               Q                  
    n   0.71150286     Peri.  280.86472     +0.05654243     -0.99723126             
    a   1.2426580      Node   165.62651     +0.97508797     +0.04476464             
    e   0.5184961      Incl.   11.21923     +0.21449106     +0.05937968             
    P   1.39           H   30.35          G   0.15           U   7                  
    Residuals in seconds of arc
    210907 G96  0.4-  0.1-    210907 N88  0.2+  0.1+    210907 033  0.4+  0.0
    210907 G96  0.3+  0.0     210907 N88  0.5+  0.0     210907 246  0.6-  0.1-
    210907 G96  0.3+  0.1-    210907 N88  0.2+  0.0     210907 246  0.1-  0.3-
    210907 G96  0.0   0.0     210907 033  0.3+  0.3-    210907 246  0.6-  0.4-
    210907 V06  0.1-  0.3+    210907 033  0.2+  0.2+
    210907 V06  0.1+  0.1-    210907 033  0.4-  0.6+
    
    Ephemeris:
    2021 RS2                 a,e,i = 1.24, 0.52, 11                  q = 0.5983
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 08 08    22 57 10.4 +12 33 47   0.3155  1.2751   141.1    29.9    29.7
    ...
    2021 08 23    23 00 56.7 +14 12 41   0.1585  1.1525   151.1    25.1    27.8
    ...
    2021 08 31    23 01 32.9 +14 46 09   0.07978 1.0827   155.7    22.6    26.1
    ...
    2021 09 06    23 00 56.0 +15 10 53   0.02211 1.0287   158.3    21.3    23.2
    2021 09 07    23 00 08.6 +15 25 54   0.01255 1.0195   158.4    21.4    21.9
    2021 09 08    22 54 16.5 +17 11 16   0.0029981.0103   156.8    23.1    18.9
    ...
    2021 09 14    10 43 22.4 -20 15 48   0.05443 0.9574    26.1   152.4    32.9
    ...
    2021 09 22    10 44 14.3 -19 49 14   0.1324  0.8876    26.8   149.3    34.0
    ...
    2021 10 07    10 53 15.0 -18 01 10   0.2912  0.7656    31.2   137.4    33.6
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-R141
    


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