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  • MPEC 2021-U247 : 2021 UW5

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    M.P.E.C. 2021-U247                             Issued 2021 October 31, 14:31 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 UW5                                 
    
    
    Observations:
         K21U05W* C2021 10 30.40814902 12 18.462+04 23 49.68         20.58wUEU247F51
         K21U05W  C2021 10 30.42084702 12 24.199+04 24 58.62         21.16wUEU247F51
         K21U05W  C2021 10 30.43350802 12 29.966+04 26 07.61         21.13wUEU247F51
         K21U05W  C2021 10 30.52651602 13 15.791+04 34 54.17         20.77GVEU247F51
         K21U05W  C2021 10 30.52715502 13 16.121+04 34 57.82         20.67GVEU247F51
         K21U05W IC2021 10 30.85661502 18 04.00 +05 09 55.1          20.5 GVEU247L01
         K21U05W IC2021 10 30.85869202 18 05.67 +05 10 12.3          20.4 GVEU247L01
         K21U05W hC2021 10 30.86076902 18 07.36 +05 10 29.7          20.3 GVEU247L01
         K21U05W hC2021 10 30.86300602 18 09.12 +05 10 47.1          20.5 GVEU247L01
         K21U05W KC2021 10 30.89981102 18 42.91 +05 15 06.4          20.1 GVEU247J95
         K21U05W KC2021 10 30.91530202 18 56.06 +05 17 17.3          19.9 GVEU247J95
         K21U05W KC2021 10 30.93141 02 19 02.46 +05 19 51.0          20.5 GXEU247G02
         K21U05W KC2021 10 30.94121 02 19 10.71 +05 21 14.5                XEU247G02
         K21U05W KC2021 10 31.22648302 24 44.65 +06 10 34.1          20.1 VuEU247H21
         K21U05W KC2021 10 31.22918902 24 47.83 +06 11 06.4          19.9 VuEU247H21
         K21U05W KC2021 10 31.23170702 24 50.76 +06 11 36.0          20.0 VuEU247H21
         K21U05W mC2021 10 31.39361802 28 34.53 +06 48 07.8          20.22GVEU247I52
         K21U05W mC2021 10 31.39378402 28 34.78 +06 48 10.1          20.07GVEU247I52
         K21U05W mC2021 10 31.39394902 28 35.04 +06 48 12.2          20.13GVEU247I52
         K21U05W mC2021 10 31.39411802 28 35.25 +06 48 14.5          19.67GVEU247I52
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith, K. Chambers.  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.
    G02 KYSUCE Observatory, Kysucke Nove Mesto.  Observer M. Urbanik.  0.40-m
        f/4.5 Corrected Dall-Kirkham + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer 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.
    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.
    
    Orbital elements:
    2021 UW5                                                 Earth MOID = 0.0005 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres                   
    M 307.18790              (2000.0)            P               Q                  
    n   0.32761652     Peri.   63.76710     -0.22213481     -0.97384599             
    a   2.0839735      Node    39.16267     +0.86541386     -0.21948716             
    e   0.6247374      Incl.    4.33637     +0.44912690     -0.05873143             
    P   3.01           H   28.85          G   0.15           U   7                  
    Residuals in seconds of arc
    211030 F51  0.3+  0.2+    211030 L01  0.3+  0.7+    211031 H21  0.6+  0.1+
    211030 F51  0.1+  0.1+    211030 L01  0.0   0.0     211031 H21  0.3+  0.3-
    211030 F51  0.3-  0.3-    211030 J95  0.2-  0.1-    211031 I52  0.1-  0.2+
    211030 F51  0.0   0.0     211030 J95  0.1-  0.3+    211031 I52  0.0   0.1+
    211030 F51  0.2-  0.1-    211030 G02  0.6+  0.5+    211031 I52  0.2+  0.1-
    211030 L01  0.6-  0.4-    211030 G02  0.1+  0.2-    211031 I52  0.4-  0.2-
    211030 L01  0.3-  0.0     211031 H21  0.3+  0.1-
    
    Ephemeris:
    2021 UW5                 a,e,i = 2.08, 0.62, 4                   q = 0.7820
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 10 01    01 46 50.9 +01 49 08   0.3002  1.2880   160.4    15.1    27.6
    ...
    2021 10 16    01 50 49.7 +01 33 03   0.1505  1.1455   170.1     8.6    25.6
    ...
    2021 10 24    01 54 13.1 +01 48 23   0.07779 1.0714   170.2     9.1    24.1
    ...
    2021 10 30    02 08 42.7 +03 53 52   0.02504 1.0178   170.0     9.7    21.5
    2021 10 31    02 20 10.7 +05 35 59   0.01638 1.0091   171.6     8.3    20.5
    2021 11 01    02 57 11.4 +10 54 55   0.0079041.0004   171.3     8.6    18.9
    ...
    2021 11 07    13 37 25.6 +00 49 04   0.04505 0.9503    24.4   154.5    31.4
    ...
    2021 11 15    13 46 05.3 -00 37 46   0.1161  0.8896    29.2   147.1    31.8
    ...
    2021 11 30    13 57 53.1 -02 45 09   0.2589  0.8057    40.1   128.0    31.0
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-U247
    


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