• MPC Preparation (Info)

  • MPEC 2021-G04 : 2021 GA

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    M.P.E.C. 2021-G04                                 Issued 2021 April 1, 16:15 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 GA                                 
    
    
    Observations:
         K21G00A KC2021 03 24.51053413 22 18.970+52 28 03.81         19.06GVEG004F52
         K21G00A KC2021 03 25.49716313 14 59.181+47 54 46.41         19.23GVEG004F52
         K21G00A KC2021 03 31.93271 12 44 20.38 +15 57 36.5          18.0 RoEG004K88
         K21G00A KC2021 03 31.93362 12 44 20.14 +15 57 21.2          18.0 RoEG004K88
         K21G00A* C2021 04 01.38127912 42 57.23 +13 56 01.6          18.30oVEG004T08
         K21G00A  C2021 04 01.38312112 42 56.77 +13 55 31.7          17.69oVEG004T08
         K21G00A  C2021 04 01.38588912 42 56.17 +13 54 47.4          18.10oVEG004T08
         K21G00A  C2021 04 01.42142512 42 47.91 +13 45 14.7          17.92oVEG004T08
         K21G00A  C2021 04 01.52059912 42 25.23 +13 18 34.5          18.47oVEG004T05
         K21G00A  C2021 04 01.52105612 42 25.14 +13 18 27.3          18.31oVEG004T05
         K21G00A  C2021 04 01.52151312 42 25.02 +13 18 19.9          18.46oVEG004T05
         K21G00A  C2021 04 01.52197012 42 24.93 +13 18 13.6          18.21oVEG004T05
         K21G00A KC2021 04 01.64832 12 42 09.27 +12 43 42.2          18.1 GVEG004N82
         K21G00A KC2021 04 01.65272 12 42 08.32 +12 42 32.6          18.3 GVEG004N82
         K21G00A KC2021 04 01.65712 12 42 07.45 +12 41 22.5          18.2 GVEG004N82
    
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
        Lowe, A. Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y.
        Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
    N82 Multa Observatory.  Observer L. Elenin.  0.4-m f/1.25 reflector + CCD.
    T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, J. Tonry, A. Heinze, H.
        Weiland.  Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, A.
        Fitzsimmons, J. Robinson, N. Erasmus.  0.5-m reflector + CCD.
    T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, J. Tonry, A. Heinze, H.
        Weiland.  Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, A.
        Fitzsimmons, J. Robinson, N. Erasmus.  0.5-m reflector + CCD.
    
    Orbital elements:
    2021 GA                                                  Earth MOID = 0.0680 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pike                    
    M 329.31106              (2000.0)            P               Q                  
    n   0.46845283     Peri.  130.23669     -0.81942220     -0.56904716             
    a   1.6419458      Node    15.48429     +0.41570802     -0.67262366             
    e   0.4036140      Incl.   14.93243     +0.39463160     -0.47303566             
    P   2.10           H   23.09          G   0.15           U   8                  
    Residuals in seconds of arc
    210324 F52  0.0+  0.0-    210401 T08  0.3-  0.0-    210401 T05  0.1-  0.4-
    210325 F52 (0.2-  2.1-)   210401 T08  0.3+  0.3+    210401 T05  0.0+  0.7+
    210331 K88  0.1+  0.1+    210401 T08  0.2+  0.0-    210401 N82  0.4+  0.6+
    210331 K88  0.4-  0.1-    210401 T05  0.0-  0.5-    210401 N82  0.3-  0.5+
    210401 T08  0.2+  0.2+    210401 T05  0.1+  0.4-    210401 N82  0.2+  0.0+
    
    Ephemeris:
    2021 GA                  a,e,i = 1.64, 0.40, 15                  q = 0.9792
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 03 02    22 04 30.5 +75 24 41   0.1683  0.9848    83.0    87.2    22.3
    ...
    2021 03 17    15 21 27.8 +76 27 05   0.09710 1.0154    99.4    75.2    20.7
    ...
    2021 03 25    13 18 35.2 +50 13 41   0.07172 1.0413   126.4    50.5    19.3
    ...
    2021 03 31    12 47 30.2 +20 23 09   0.07162 1.0645   155.4    22.9    18.6
    2021 04 01    12 44 06.9 +15 40 18   0.07360 1.0686   159.9    18.8    18.5
    2021 04 02    12 41 03.7 +11 13 08   0.07609 1.0728   163.9    14.9    18.5
    ...
    2021 04 08    12 27 55.9 -09 07 28   0.09961 1.0995   170.2     8.9    18.9
    ...
    2021 04 16    12 19 21.8 -23 08 44   0.1447  1.1385   157.4    19.8    20.2
    ...
    2021 05 01    12 18 43.5 -32 52 11   0.2486  1.2192   144.8    28.4    21.8
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-G04
    


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