• Processing (Info)

    • MPEC 2021-C303 : 2021 CB8

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.

    Read MPEC 2021-C302 Read MPEC 2021-C304 

    M.P.E.C. 2021-C303                            Issued 2021 February 14, 07:10 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 CB8                                 


Observations:
     K21C08B* C2021 02 13.37000309 54 09.51 +06 19 39.2          21.30GVEC303V00
     K21C08B  C2021 02 13.37529909 54 14.25 +06 19 52.0          21.14GVEC303V00
     K21C08B  C2021 02 13.38058809 54 18.96 +06 20 04.6          21.21GVEC303V00
     K21C08B  C2021 02 13.38588009 54 23.67 +06 20 17.3                VEC303V00
     K21C08B KC2021 02 13.48373409 55 53.65 +06 24 08.5          21.65GVEC303G96
     K21C08B KC2021 02 13.48535509 55 55.17 +06 24 12.4          21.19GVEC303G96
     K21C08B KC2021 02 13.48697709 55 56.72 +06 24 16.6          20.91GVEC303G96
     K21C08B KC2021 02 13.48860009 55 58.29 +06 24 20.1          21.12GVEC303G96
     K21C08B 1C2021 02 13.96383 10 04 30.30 +06 44 21.7          21.9 VVEC303033
     K21C08B 1C2021 02 13.96492 10 04 31.44 +06 44 24.1          21.6 VVEC303033
     K21C08B 1C2021 02 13.96602 10 04 32.63 +06 44 27.2          21.6 VVEC303033
     K21C08B 1C2021 02 13.96711 10 04 33.79 +06 44 30.1          21.7 VVEC303033
     K21C08B |C2021 02 14.24965 10 10 01.18 +07 02 41.1          20.8 VuEC303807
     K21C08B |C2021 02 14.25670 10 10 09.25 +07 03 02.2          21.1 VuEC303807
     K21C08B |C2021 02 14.26377 10 10 17.32 +07 03 23.2          21.1 VuEC303807

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
    Hoegner, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
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.
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 CB8                                                 Earth MOID = 0.0119 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 327.93300              (2000.0)            P               Q                  
n   0.34115578     Peri.   43.16499     -0.98158181     +0.18193787             
a   2.0284652      Node   147.18415     -0.19102399     -0.93049224             
e   0.5451836      Incl.    6.17277     -0.00264383     -0.31793523             
P   2.89           H   27.71          G   0.15           U   7                  
Residuals in seconds of arc
210213 V00  0.1-  0.1-    210213 G96  0.0-  0.2-    210213 033  0.0+  0.2-
210213 V00  0.2+  0.1+    210213 G96  0.0+  0.1+    210213 033  0.1-  0.3-
210213 V00  0.1+  0.0+    210213 G96  0.4+  0.3-    210214 807  0.1-  0.2-
210213 V00  0.4-  0.1+    210213 033  0.2+  0.4+    210214 807  0.2+  0.1+
210213 G96  0.2+  0.2-    210213 033  0.3-  0.2-    210214 807  0.1-  0.2+

Ephemeris:
2021 CB8                 a,e,i = 2.03, 0.55, 6                   q = 0.9226
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 01 15    08 26 29.3 +03 58 42   0.2586  1.2302   160.3    15.6    26.1
...
2021 01 30    08 39 30.7 +03 20 57   0.1410  1.1220   165.4    12.8    24.5
...
2021 02 07    09 00 23.4 +04 00 41   0.08538 1.0697   167.4    11.6    23.2
...
2021 02 13    09 48 34.4 +06 06 40   0.04708 1.0340   172.6     7.0    21.7
2021 02 14    10 05 08.9 +06 48 28   0.04124 1.0284   172.7     7.0    21.4
2021 02 15    10 27 04.4 +07 40 41   0.03572 1.0229   170.4     9.3    21.1
...
2021 02 21    15 53 00.1 +09 56 03   0.02400 0.9924    97.7    81.0    22.4
...
2021 03 01    18 50 22.7 +02 45 13   0.06677 0.9591    60.0   116.5    26.3
...
2021 03 16    19 42 34.5 +00 13 15   0.1622  0.9246    60.1   111.2    27.8

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-C303

    Read MPEC 2021-C302 Read MPEC 2021-C304

    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)