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  • MPEC 2021-C195 : 2021 CD5

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    M.P.E.C. 2021-C195                            Issued 2021 February 11, 11:52 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 CD5                                 
    
    
    Observations:
         K21C05D* C2021 02 08.31222109 55 20.53 -05 14 07.9          22.59GVEC195G96
         K21C05D  C2021 02 08.31734309 55 22.08 -05 14 33.8          21.04GVEC195G96
         K21C05D  C2021 02 08.32244709 55 23.60 -05 14 59.5          21.20GVEC195G96
         K21C05D  C2021 02 08.32755809 55 25.11 -05 15 26.2          21.06GVEC195G96
         K21C05D KC2021 02 08.40482109 55 48.32 -05 22 00.8          21.36GVEC195V06
         K21C05D KC2021 02 08.40798809 55 49.30 -05 22 16.8          21.23GVEC195V06
         K21C05D KC2021 02 08.41115909 55 50.24 -05 22 33.1          21.60GVEC195V06
         K21C05D 2C2021 02 09.06910709 59 49.842-06 22 26.71         21.1 GVEC195J04
         K21C05D 2C2021 02 09.08376909 59 54.896-06 23 52.60         21.3 GVEC195J04
         K21C05D 2C2021 02 09.09601509 59 59.121-06 25 03.42         21.1 GVEC195J04
         K21C05D KC2021 02 09.32489010 01 30.71 -06 47 52.4          20.93GVEC195V06
         K21C05D KC2021 02 09.32667410 01 31.35 -06 48 03.7          21.52GVEC195V06
         K21C05D KC2021 02 09.33195510 01 33.27 -06 48 35.4          21.09GVEC195V06
         K21C05D |C2021 02 11.24369 10 17 30.52 -10 42 06.2          21.1 VuEC195807
         K21C05D |C2021 02 11.25054 10 17 34.44 -10 43 07.6          20.9 VuEC195807
         K21C05D |C2021 02 11.25738 10 17 38.34 -10 44 08.9          21.1 VuEC195807
         K21C05D |C2021 02 11.26404 10 17 42.19 -10 45 08.4          21.1 VuEC195807
         K21C05D KC2021 02 11.34067510 18 32.12 -10 58 59.8          20.79GVEC195I52
         K21C05D KC2021 02 11.34235410 18 33.10 -10 59 15.6          20.34GVEC195I52
         K21C05D KC2021 02 11.34403410 18 34.11 -10 59 30.6          20.56GVEC195I52
    
    Observer details:
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
        0.61-m f/6.5 astrograph + CCD.
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  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.
    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.
    J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers M.
        Micheli, D. Koschny, L. Conversi, R. Kresken, A. Knofel, M. Busch, E.
        Schwab.  1.0-m f/4.4 reflector + CCD.
    V06 Catalina Sky Survey-Kuiper.  Observers H. Groeller, D. Rankin.  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 CD5                                                 Earth MOID = 0.0135 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 324.88093              (2000.0)            P               Q
    n   0.34335374     Peri.   42.67284     -0.88198094     +0.47106441
    a   2.0197992      Node   165.41084     -0.44636283     -0.82513103
    e   0.5920584      Incl.    3.28193     -0.15122780     -0.31186071
    P   2.87           H   25.7           G   0.15           U   7
    Residuals in seconds of arc
    210208 G96  0.2-  0.0     210209 J04  0.1+  0.4+    210211 807  0.1+  0.1-
    210208 G96  0.2+  0.1+    210209 J04  0.1+  0.3-    210211 807  0.2-  0.1-
    210208 G96  0.3+  0.4+    210209 J04  0.1-  0.1+    210211 807  0.2+  0.0
    210208 G96  0.1+  0.3-    210209 V06  0.1+  0.1+    210211 I52  0.1-  0.2+
    210208 V06  0.1-  0.2-    210209 V06  0.1-  0.4-    210211 I52  0.2-  0.2-
    210208 V06  0.1+  0.1+    210209 V06  0.2-  0.1+    210211 I52  0.2+  0.2+
    210208 V06  0.3-  0.0     210211 807  0.1+  0.1+
    
    Ephemeris:
    2021 CD5                 a,e,i = 2.02, 0.59, 3                   q = 0.8240
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 01 12    09 09 51.6 +07 01 16   0.3535  1.3075   152.6    20.3    25.0
    ...
    2021 01 27    09 23 22.3 +03 17 23   0.1993  1.1749   161.1    15.8    23.4
    ...
    2021 02 04    09 38 18.5 -00 47 39   0.1262  1.1062   161.6    16.4    22.3
    ...
    2021 02 10    10 06 22.4 -07 59 34   0.07566 1.0564   156.2    22.1    21.3
    2021 02 11    10 15 03.8 -10 07 19   0.06779 1.0484   154.1    24.3    21.1
    2021 02 12    10 26 07.6 -12 45 29   0.06018 1.0403   151.3    27.1    20.9
    ...
    2021 02 18    14 23 24.7 -43 40 34   0.03083 0.9939    99.5    78.8    20.9
    ...
    2021 02 26    19 43 50.0 -24 49 32   0.07513 0.9374    44.0   132.8    25.9
    ...
    2021 03 13    20 42 13.8 -14 11 53   0.2039  0.8570    43.3   127.3    27.4
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-C195
    


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