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  • MPEC 2021-F28 : 2021 FG

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    M.P.E.C. 2021-F28                                Issued 2021 March 18, 23:04 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 FG                                 
    
    
    Observations:
         K21F00G* C2021 03 17.44925716 34 11.24 +36 15 35.3          18.50GVEF028703
         K21F00G  C2021 03 17.46724516 32 09.50 +36 05 25.4          19.00GVEF028703
         K21F00G mC2021 03 17.49247216 29 21.56 +35 51 02.8          18.77GVEF028703
         K21F00G mC2021 03 17.49264816 29 20.40 +35 50 57.3          18.62GVEF028703
         K21F00G mC2021 03 17.49282216 29 19.27 +35 50 50.7          18.87GVEF028703
         K21F00G mC2021 03 17.49299716 29 18.04 +35 50 45.3                VEF028703
         K21F00G mC2021 03 17.51772716 26 35.71 +35 36 27.2          18.62GVEF028703
         K21F00G mC2021 03 17.51790116 26 34.55 +35 36 19.9          18.96GVEF028703
         K21F00G mC2021 03 17.51807716 26 33.40 +35 36 14.4          18.37GVEF028703
         K21F00G bC2021 03 17.86229515 54 35.71 +32 09 47.8          18.8 GVEF028L01
         K21F00G bC2021 03 17.86459415 54 24.27 +32 08 29.9          18.9 GVEF028L01
         K21F00G bC2021 03 17.86624015 54 16.05 +32 07 34.0          18.6 GVEF028L01
         K21F00G bC2021 03 17.86693115 54 12.61 +32 07 10.7          18.9 GVEF028L01
         K21F00G bC2021 03 17.86758915 54 09.33 +32 06 48.1          18.5 GVEF028L01
         K21F00G bC2021 03 17.86820015 54 06.29 +32 06 27.4          18.7 GVEF028L01
         K21F00G bC2021 03 17.87316415 53 41.55 +32 03 39.4          19.0 GVEF028L01
         K21F00G bC2021 03 17.87373815 53 38.72 +32 03 19.5          19.0 GVEF028L01
         K21F00G KC2021 03 17.90186015 51 19.81 +31 47 25.6          18.1 GVEF028595
         K21F00G KC2021 03 17.90561815 51 01.44 +31 45 18.0          18.7 GVEF028595
         K21F00G KC2021 03 17.90941915 50 40.72 +31 42 12.3          18.5 GVEF028J95
         K21F00G KC2021 03 17.90965215 50 41.71 +31 43 01.7          18.4 GVEF028595
         K21F00G KC2021 03 17.91301015 50 23.27 +31 40 10.5          18.4 GVEF028J95
         K21F00G KC2021 03 17.91872315 49 55.74 +31 36 57.9          17.9 GVEF028J95
         K21F00G KC2021 03 17.92126415 49 43.46 +31 35 32.2          18.4 GVEF028J95
         K21F00G KC2021 03 17.95909215 46 44.13 +31 15 06.1          18.1 GVEF028204
         K21F00G KC2021 03 17.96430515 46 19.40 +31 12 11.2                VEF028204
         K21F00G KC2021 03 17.96949515 45 54.81 +31 09 16.6                VEF028204
         K21F00G KC2021 03 18.00438315 43 12.88 +30 49 11.0                VEF028Z43
         K21F00G KC2021 03 18.00885115 42 52.34 +30 46 42.4                VEF028Z43
         K21F00G KC2021 03 18.00980315 42 45.69 +30 45 49.1          18.8 GVEF028Z99
         K21F00G KC2021 03 18.01025615 42 44.17 +30 46 32.7                VEF028203
         K21F00G 1C2021 03 18.01047 15 42 41.08 +30 45 59.9          19.4 VVEF028033
         K21F00G 1C2021 03 18.01082 15 42 39.44 +30 45 48.1          18.6 VVEF028033
         K21F00G KC2021 03 18.01112315 42 39.59 +30 45 04.1          18.5 GVEF028Z99
         K21F00G 1C2021 03 18.01116 15 42 37.88 +30 45 36.8          18.5 VVEF028033
         K21F00G KC2021 03 18.01262715 42 32.74 +30 44 14.2          18.7 GVEF028Z99
         K21F00G KC2021 03 18.01435215 42 25.26 +30 44 15.9          17.8 GVEF028203
         K21F00G KC2021 03 18.17092215 30 58.29 +29 17 32.6          19.1 GVEF028I93
         K21F00G KC2021 03 18.17274315 30 50.65 +29 16 32.2          18.6 GVEF028I93
         K21F00G KC2021 03 18.17460415 30 42.85 +29 15 31.1          19.0 GVEF028I93
         K21F00G mC2021 03 18.32414615 21 26.39 +27 55 45.6          18.19GVEF028I52
         K21F00G mC2021 03 18.32427715 21 25.88 +27 55 41.1          17.96GVEF028I52
         K21F00G mC2021 03 18.32440815 21 25.34 +27 55 37.1          18.78GVEF028I52
         K21F00G mC2021 03 18.32454115 21 24.93 +27 55 33.4          18.68GVEF028I52
         K21F00G  C2021 03 18.77131 14 57 41.87 +24 17 44.8          18.6 GVEF028N88
         K21F00G  C2021 03 18.77159 14 57 41.10 +24 17 38.1          18.6 GVEF028N88
         K21F00G  C2021 03 18.77189 14 57 40.14 +24 17 28.8          18.9 GVEF028N88
         K21F00G  C2021 03 18.77221 14 57 39.28 +24 17 20.7          18.4 GVEF028N88
         K21F00G  C2021 03 18.77253 14 57 38.38 +24 17 12.3          18.7 GVEF028N88
    
    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.
    203 GiaGa Observatory.  Observers S. Foglia, G. Galli.  Measurer G. Galli.
        0.36-m f/5.76 Schmidt-Cassegrain + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
        CCD.
    595 Farra d'Isonzo.  Observer E. Pettarin.  0.40-m f/5.15 reflector + CCD.
    703 Catalina Sky Survey.  Observer T. A. Pruyne.  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.  0.68-m Schmidt + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer T. A. Pruyne.
        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.  1.0-m
        reflector + CCD.
    I93 St Pardon de Conques.  Observers F. Losse, W. D'Anna.  Measurer F. Losse.
        0.40-m f/3.7 reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
        + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    N88 Xingming Observatory #3, Nanshan.  Observer X. Gao.  Measurer Q.-Z. Ye.
        0.6-m f/8 Ritchey-Chretien + CCD.
    Z43 Landehen.  Observer C. Ratinaud.  0.25-m f/4.7 reflector + CCD + GPS-
        tagged video.
    Z99 Clixby Observatory, Cleethorpes.  Observer A. Mickleburgh.  0.36-m f/8
        Schmidt-Cassegrain + CCD.
    
    Orbital elements:
    2021 FG                                                  Earth MOID = 0.0166 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 347.49759              (2000.0)            P               Q
    n   0.25177033     Peri.  348.21567     -0.39095160     -0.92024689
    a   2.4838937      Node   124.79572     +0.84617209     -0.36678899
    e   0.6903599      Incl.    1.21362     +0.36214588     -0.13642399
    P   3.91           H   24.9           G   0.15           U   6
    Residuals in seconds of arc
    210317 703 (2.1-  0.5-)   210317 595  0.4+  0.3+    210318 033  0.1+  0.0
    210317 703 (4.6-  1.6-)   210317 595  0.7+  0.4-    210318 Z99  0.1+  0.7-
    210317 703  0.1-  0.1-    210317 J95  0.6+  0.1+    210318 203  0.8-  0.4-
    210317 703  0.0   0.4+    210317 595  0.3+  0.5-    210318 I93  0.2+  0.4+
    210317 703  0.2+  0.2-    210317 J95  0.4-  0.2-    210318 I93  0.0   0.0
    210317 703  0.6-  0.5+    210317 J95  0.3+  0.3+    210318 I93  0.2-  0.2+
    210317 703  0.3+  0.4+    210317 J95  0.2-  0.4+    210318 I52  0.3+  0.3+
    210317 703  0.0   0.8-    210317 204  0.0   0.2-    210318 I52  0.1+  0.1-
    210317 703  0.1-  0.2-    210317 204  0.0   0.0     210318 I52  0.5-  0.1-
    210317 L01  0.2-  0.2+    210317 204  0.4-  0.4-    210318 I52  0.7+  0.3+
    210317 L01  0.3+  0.3+    210318 Z43  0.4-  0.8-    210318 N88  0.4+  0.2+
    210317 L01  0.1+  0.2+    210318 Z43  0.4+  0.2-    210318 N88  0.7+  0.9+
    210317 L01  0.2+  0.3+    210318 Z99  0.3-  0.3-    210318 N88  0.8-  0.5-
    210317 L01  0.1+  0.0     210318 203  1.1-  0.7-    210318 N88  0.2-  0.2-
    210317 L01  0.2+  0.0     210318 033  0.2+  0.0     210318 N88  0.2-  0.1-
    210317 L01  0.5-  0.2+    210318 033  0.1-  0.1-
    210317 L01  0.2-  0.2-    210318 Z99  0.7-  1.1-
    
    Ephemeris:
    2021 FG                  a,e,i = 2.48, 0.69, 1                   q = 0.7691
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 02 16    00 23 43.7 +03 10 24   0.2818  0.7909    39.5   127.4    27.1
    ...
    2021 03 03    00 21 32.9 +07 22 13   0.1288  0.8773    25.9   150.4    28.7
    ...
    2021 03 11    23 48 11.2 +15 02 41   0.05455 0.9422    19.8   159.1    29.1
    ...
    2021 03 17    17 30 27.3 +40 03 35   0.01863 0.9965    94.0    84.9    19.2
    2021 03 18    15 43 18.9 +30 55 15   0.02259 1.0058   117.4    61.4    18.9
    2021 03 19    14 47 46.9 +22 42 38   0.02906 1.0153   132.4    46.4    19.0
    ...
    2021 03 25    13 25 16.9 +06 16 52   0.08067 1.0737   160.9    17.7    20.5
    ...
    2021 04 02    13 05 29.1 +01 57 40   0.1565  1.1545   171.5     7.4    21.7
    ...
    2021 04 17    12 55 24.4 -00 35 50   0.3141  1.3099   165.2    11.3    23.7
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-F28
    


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