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  • MPEC 2022-U139 : 2022 UL4

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    M.P.E.C. 2022-U139                             Issued 2022 October 20, 23:53 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
    
                                    2022 UL4                                 
    
    
    Observations:
         K22U04L KC2022 10 14.31141423 02 22.796-23 02 38.26         21.20GVEU139F51
         K22U04L* C2022 10 16.32241622 55 15.897-19 37 55.26         21.37wUEU139F51
         K22U04L  C2022 10 16.33423022 55 13.343-19 36 42.41         21.37wUEU139F51
         K22U04L  C2022 10 16.34605622 55 10.743-19 35 29.30         21.79wUEU139F51
         K22U04L  C2022 10 16.35788522 55 08.185-19 34 16.47         21.42wUEU139F51
         K22U04L KC2022 10 16.44108122 54 50.267-19 25 41.53         22.08GVEU139F51
         K22U04L |C2022 10 17.12793 22 52 34.90 -18 14 40.6          21.6 GVEU139807
         K22U04L |C2022 10 17.13718 22 52 32.94 -18 13 43.8          21.7 GVEU139807
         K22U04L |C2022 10 17.14643 22 52 31.02 -18 12 46.3          21.5 GVEU139807
         K22U04L KC2022 10 17.15830822 52 29.975-18 12 07.67         21.73GVEU139I52
         K22U04L KC2022 10 17.16139922 52 29.395-18 11 49.60         21.12GVEU139I52
         K22U04L KC2022 10 17.16610822 52 28.330-18 11 20.00         21.54GVEU139I52
         K22U04L |C2022 10 18.09598 22 49 30.31 -16 35 02.3          21.5 GVEU139807
         K22U04L |C2022 10 18.10524 22 49 28.45 -16 34 05.2          21.4 GVEU139807
         K22U04L |C2022 10 18.11449 22 49 26.62 -16 33 07.9          21.6 GVEU139807
    
    Observer details:
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
        Horn.  1.00-m f/10.0 astrograph + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
        Schultz, I. Smith.  Measurers S. Chastel, J. Fairlamb, M. Huber, Y.
        Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, H. Gao,
        C.-C. Lin, E. Magnier.  1.8-m Ritchey-Chretien + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
        Measurers E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R.
        Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M.
        Larson, G. J. Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly,
        K. W. Wierzchos.  1.0-m prime focus + CCD.
    
    Orbital elements:
    2022 UL4                                                 Earth MOID = 0.1736 AU
    Epoch 2022 Aug. 9.0 TT = JDT 2459800.5                  Veres                   
    M 306.70858              (2000.0)            P               Q                  
    n   0.52932947     Peri.   22.68994     +0.75919918     -0.63387775             
    a   1.5135101      Node    19.09873     +0.50611801     +0.43228170             
    e   0.2367308      Incl.   26.83440     +0.40922019     +0.64135133             
    P   1.86           H   22.86          G   0.15           U   9                  
    Residuals in seconds of arc
    221014 F51 (2.6+  2.6-)   221016 F51  0.5-  0.2+    221017 I52  0.5+  0.4-
    221016 F51  0.0   0.2-    221017 807  0.4+  0.3+    221017 I52  0.7-  0.1+
    221016 F51  0.2+  0.1-    221017 807  0.1-  0.2-    221018 807  0.0   0.1+
    221016 F51  0.2-  0.1+    221017 807  0.0   0.0     221018 807  0.2-  0.1-
    221016 F51  0.0   0.0     221017 I52  0.4-  0.5+    221018 807  0.1+  0.0
    
    Ephemeris:
    2022 UL4                 a,e,i = 1.51, 0.24, 27                  q = 1.1552
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 09 20    00 59 26.2 -49 45 34   0.3278  1.2380   129.2    39.0    22.5
    ...
    2022 10 05    23 42 48.9 -37 08 22   0.2620  1.2028   136.1    35.2    21.8
    ...
    2022 10 13    23 07 20.4 -25 13 17   0.2481  1.1875   135.4    36.1    21.7
    ...
    2022 10 19    22 46 45.7 -15 02 15   0.2502  1.1778   131.8    39.1    21.8
    2022 10 20    22 43 51.8 -13 19 41   0.2516  1.1763   131.0    39.7    21.8
    2022 10 21    22 41 06.8 -11 37 44   0.2533  1.1749   130.1    40.4    21.8
    ...
    2022 10 27    22 27 35.7 -01 52 17   0.2692  1.1674   124.4    44.7    22.1
    ...
    2022 11 04    22 16 36.1 +09 19 33   0.3027  1.1601   116.8    49.8    22.4
    ...
    2022 11 19    22 11 59.7 +24 31 38   0.3870  1.1553   105.8    55.4    23.1
    
    M. P. C. Staff               (C) Copyright 2022 MPC           M.P.E.C. 2022-U139
    


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