[Iaude] MPEC G25: 2021 CG56 [a=56.98,e=0.35,i=13.3,H=7.2]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-G25                                 Issued 2024 April 3, 19:46 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2021 CG56                                    


Observations:
     K21C56G*5C2021 02 15.34144 08 20 58.943+15 48 04.87         25.1 rVEG025568
     K21C56G 5C2021 02 16.31223 08 20 55.866+15 48 18.19         25.0 rVEG025568
     K21C56G  C2022 04 29.99685 08 21 59.554+15 58 56.10         25.1 rVEG025304
     K21C56G  C2024 02 05.13346 08 29 46.850+15 44 02.98         25.1 rVEG025304
     K21C56G  C2024 02 05.14167 08 29 46.841+15 44 03.22         25.0 rVEG025304
     K21C56G  C2024 02 05.17666 08 29 46.723+15 44 03.73         25.1 rVEG025304
     K21C56G  C2024 02 05.18506 08 29 46.690+15 44 03.58         25.1 rVEG025304
     K21C56G  C2024 03 08.03608 08 28 11.197+15 51 16.96         25.2 rVEG025304

Observer details:
304 Las Campanas Observatory.  Observers S. S. Sheppard, C. Trujillo, W.
    Oldroyd.  Measurer S. S. Sheppard.  6.5-m Magellan-Baade telescope + CCD.
568 Maunakea.  Observers S. S. Sheppard, D. J. Tholen, C. Trujillo.  Measurer
    S. S. Sheppard.  8.2-m Subaru reflector + CCD.

Orbital elements:
2021 CG56                                                                       
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M  88.87713              (2000.0)            P               Q                  
n   0.00229178     Peri.  220.13478     +0.98858784     -0.00336374             
a  56.9754849      Node   139.28587     +0.03781205     +0.97328629             
e   0.3489422      Incl.   13.34964     -0.14582291     +0.22957022             
P 430              H    7.29          G   0.15           U   7                  
Residuals in seconds of arc
210215 568  0.0   0.0     240205 304  0.2-  0.0     240205 304  0.1+  0.2-
210216 568  0.0   0.0     240205 304  0.1+  0.1+    240308 304  0.1-  0.0
220429 304  0.0   0.1-    240205 304  0.1+  0.1+

Ephemeris:
2021 CG56                a,e,i = 56.98, 0.35, 13                 q = 37.0943
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 03 04    08 28 21.3 +15 50 26  62.2854 63.0681   141.8     0.6    25.4
...
2024 03 19    08 27 47.6 +15 53 23  62.4773 63.0783   126.8     0.7    25.4
...
2024 03 27    08 27 34.5 +15 54 42  62.5971 63.0838   118.8     0.8    25.4
...
2024 04 02    08 27 27.1 +15 55 34  62.6930 63.0879   112.8     0.8    25.4
2024 04 03    08 27 26.1 +15 55 42  62.7095 63.0886   111.9     0.8    25.4
2024 04 04    08 27 25.1 +15 55 50  62.7260 63.0893   110.9     0.8    25.4
...
2024 04 10    08 27 20.6 +15 56 33  62.8273 63.0934   105.0     0.9    25.4
...
2024 04 18    08 27 18.3 +15 57 17  62.9665 63.0988    97.1     0.9    25.4
...
2024 05 03    08 27 24.9 +15 58 02  63.2316 63.1091    82.6     0.9    25.4

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-G25