• MPC Preparation (Info)

  • MPEC 2021-V18 : 2021 UA7

    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-V17 Read MPEC 2021-V19


    M.P.E.C. 2021-V18                              Issued 2021 November 1, 17:53 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 UA7                                 
    
    
    Observations:
         K21U07A* C2021 10 28.20616001 22 07.01 +07 52 56.0          20.65GVEV018G96
         K21U07A  C2021 10 28.21135701 22 08.07 +07 53 35.3          20.55GVEV018G96
         K21U07A  C2021 10 28.21655701 22 09.13 +07 54 13.6          20.32GVEV018G96
         K21U07A  C2021 10 28.22175701 22 10.12 +07 54 51.5                VEV018G96
         K21U07A mC2021 10 28.26211501 22 17.58 +07 59 31.8          20.85GVEV018I52
         K21U07A mC2021 10 28.26288201 22 17.77 +07 59 37.2          21.32GVEV018I52
         K21U07A mC2021 10 28.26364901 22 17.81 +07 59 41.7                VEV018I52
         K21U07A mC2021 10 28.26441701 22 18.03 +07 59 47.4          20.84GVEV018I52
         K21U07A  C2021 10 28.30241601 22 45.970+08 05 11.30         20.82wUEV018F52
         K21U07A  C2021 10 28.31449901 22 47.797+08 06 27.21         21.02wUEV018F52
         K21U07A  C2021 10 28.32654401 22 49.495+08 07 41.01         21.33wUEV018F52
         K21U07A  C2021 10 28.33862301 22 51.116+08 08 53.49         20.38wUEV018F52
         K21U07A mC2021 10 28.35153901 22 32.90 +08 08 36.6          20.79GVEV018I52
         K21U07A mC2021 10 28.35230601 22 33.05 +08 08 40.9          20.48GVEV018I52
         K21U07A mC2021 10 28.35307301 22 33.18 +08 08 45.0          21.42GVEV018I52
         K21U07A mC2021 10 28.35384001 22 33.34 +08 08 49.8                VEV018I52
         K21U07A 1C2021 10 28.90727 01 24 42.64 +08 44 09.3          21.3 VVEV018033
         K21U07A 1C2021 10 28.91085 01 24 42.89 +08 44 19.2          21.1 VVEV018033
         K21U07A 1C2021 10 28.91443 01 24 43.13 +08 44 29.4          21.2 VVEV018033
    
    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.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith.  Measurers K. Chambers, S. Chastel, T. de Boer, J. Fairlamb, H.
        Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
        Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  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, D. Rankin, R. L. Seaman, F. C.
        Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers A. R. Gibbs, K. W.
        Wierzchos.  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, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.
    
    Orbital elements:
    2021 UA7                                                 Earth MOID = 0.0004 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres                   
    M 336.98142              (2000.0)            P               Q                  
    n   0.32707800     Peri.  247.18377     +0.22989561     +0.97319632             
    a   2.0862603      Node    36.10885     -0.88908406     +0.21255750             
    e   0.8107996      Incl.    0.59085     -0.39582515     +0.08779654             
    P   3.01           H   28.76          G   0.15           U   8                  
    Residuals in seconds of arc
    211028 G96  0.1-  0.4-    211028 I52  0.6+  0.2+    211028 I52  0.2-  0.5-
    211028 G96  0.1-  0.2+    211028 F52  0.0   0.1-    211028 I52  0.3+  0.2+
    211028 G96  0.2+  0.2+    211028 F52  0.1+  0.0     211028 033  0.4-  0.0
    211028 G96  0.3-  0.2+    211028 F52  0.0   0.1-    211028 033  0.0   0.1-
    211028 I52  0.1-  0.1-    211028 F52  0.0   0.1+    211028 033  0.3+  0.1+
    211028 I52  0.7+  0.2+    211028 I52  0.3-  0.3-
    211028 I52  0.7-  0.4-    211028 I52  0.0   0.2-
    
    Ephemeris:
    2021 UA7                 a,e,i = 2.09, 0.81, 1                   q = 0.3947
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 10 02    13 25 50.2 -09 32 22   0.4380  0.5879    14.7   154.5
    ...
    2021 10 17    13 29 00.0 -10 01 44   0.1634  0.8333     1.0   178.8
    ...
    2021 10 25    13 31 38.2 -10 55 00   0.03369 0.9610     6.4   173.4
    ...
    2021 10 31    01 27 03.9 +09 30 56   0.06232 1.0535   166.2    13.0    23.6
    2021 11 01    01 27 31.4 +09 38 45   0.07838 1.0686   165.3    13.6    24.2
    2021 11 02    01 27 51.5 +09 44 05   0.09448 1.0837   164.4    14.2    24.6
    ...
    2021 11 08    01 29 17.2 +10 00 20   0.1923  1.1722   158.8    17.8    26.5
    ...
    2021 11 16    01 31 37.3 +10 16 15   0.3270  1.2857   151.4    21.6    27.9
    ...
    2021 12 01    01 38 41.3 +10 56 37   0.5972  1.4854   138.1    26.3    29.7
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-V18
    


    Read MPEC 2021-V17 Read MPEC 2021-V19


    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)