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  • MPEC 2021-H26 : 2021 GM16

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    M.P.E.C. 2021-H26                                Issued 2021 April 17, 04:52 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 GM16                                
    
    
    Observations:
         K21G16M* C2021 04 13.45482316 54 43.96 +34 01 28.8          21.71GVEH026V00
         K21G16M  C2021 04 13.45984716 54 44.06 +34 01 28.0          21.43GVEH026V00
         K21G16M  C2021 04 13.46475616 54 44.12 +34 01 27.8          21.57GVEH026V00
         K21G16M  C2021 04 13.47058516 54 44.27 +34 01 27.0          21.52GVEH026V00
         K21G16M 1C2021 04 14.08398 16 55 00.45 +34 00 11.5          22.0 VVEH026033
         K21G16M 1C2021 04 14.08756 16 55 00.53 +34 00 10.8          21.9 VVEH026033
         K21G16M 1C2021 04 14.09115 16 55 00.58 +34 00 10.4          22.0 VVEH026033
         K21G16M 1C2021 04 14.09496 16 55 00.65 +34 00 09.8          22.1 VVEH026033
         K21G16M  C2021 04 14.41181 16 55 08.62 +33 59 34.7          21.5 GVEH026G96
         K21G16M  C2021 04 14.41701 16 55 08.69 +33 59 34.9          21.0 GVEH026G96
         K21G16M  C2021 04 14.42222 16 55 08.83 +33 59 33.4          21.4 GVEH026G96
         K21G16M KC2021 04 16.36888016 55 48.40 +33 53 48.7          21.5 VuEH026H21
         K21G16M KC2021 04 16.38325616 55 48.48 +33 53 45.6          21.3 VuEH026H21
    
    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.
    G96 Mt. Lemmon Survey.  Observer D. Rankin.  Measurers B. Gray, D. Rankin, F.
        C. Shelly.  1.5-m reflector + 10K CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
        astrograph + CCD.
    V00 Kitt Peak-Bok.  Observer H. Groeller.  Measurers M. J. Brucker, E. J.
        Christensen, C. E. Woodward, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
        Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. S.
        McMillan, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W.
        Wierzchos.  2.25-m reflector + CCD.
    
    Orbital elements:
    2021 GM16                                                Earth MOID = 0.1136 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
    M 252.67815              (2000.0)            P               Q                  
    n   0.56462887     Peri.  202.34759     -0.02344974     +0.91270986             
    a   1.4497529      Node    68.36311     -0.83798823     +0.20457683             
    e   0.2310969      Incl.   26.03098     -0.54518422     -0.35370756             
    P   1.75           H   21.41          G   0.15           U   9                  
    Residuals in seconds of arc
    210413 V00  0.0   0.2+    210414 033  0.1-  0.1+    210414 G96  0.6+  0.3-
    210413 V00  0.0   0.2-    210414 033  0.3-  0.1+    210416 H21  0.2+  0.0
    210413 V00  0.3-  0.1+    210414 033  0.3-  0.1-    210416 H21  0.3-  0.0
    210413 V00  0.3+  0.1-    210414 G96  0.0   0.3-
    210414 033  0.3-  0.3+    210414 G96  0.1-  0.6+
    
    Ephemeris:
    2021 GM16                a,e,i = 1.45, 0.23, 26                  q = 1.1147
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 03 18    16 27 01.8 +32 37 24   0.6205  1.3255   108.0    45.6    22.7
    ...
    2021 04 02    16 46 15.5 +33 49 22   0.5099  1.2762   111.3    46.9    22.3
    ...
    2021 04 10    16 52 51.4 +34 03 55   0.4501  1.2510   113.4    47.3    21.9
    ...
    2021 04 16    16 55 41.7 +33 55 08   0.4048  1.2329   115.4    47.3    21.7
    2021 04 17    16 55 58.3 +33 51 25   0.3973  1.2299   115.8    47.3    21.6
    2021 04 18    16 56 11.2 +33 46 57   0.3897  1.2270   116.2    47.2    21.6
    ...
    2021 04 24    16 56 07.9 +33 01 08   0.3443  1.2099   118.8    46.7    21.3
    ...
    2021 05 02    16 51 52.3 +30 48 35   0.2843  1.1888   123.6    44.9    20.8
    ...
    2021 05 17    16 25 11.4 +18 41 38   0.1797  1.1549   140.1    34.2    19.4
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-H26
    


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