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  • MPEC 2023-U184 : 2023 UJ4

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    M.P.E.C. 2023-U184                             Issued 2023 October 21, 20:18 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2023 UJ4                                 
    
    
    Observations:
         K23U04J* C2023 10 19.23849623 49 13.127+31 41 05.10         22.67GVEU184V00
         K23U04J  C2023 10 19.24401423 49 13.501+31 40 57.72         22.99GVEU184V00
         K23U04J  C2023 10 19.24952023 49 13.912+31 40 49.37         21.97GVEU184V00
         K23U04J  C2023 10 19.25501723 49 14.293+31 40 42.46         22.20GVEU184V00
         K23U04J  C2023 10 19.28799423 49 16.562+31 39 53.79         21.9 GVEU184H01
         K23U04J  C2023 10 19.29243223 49 16.883+31 39 47.44         22.0 GVEU184H01
         K23U04J  C2023 10 19.30617123 49 17.903+31 39 27.61         22.3 GVEU184H01
         K23U04J  C2023 10 19.31710123 49 18.718+31 39 11.76         21.7 GVEU184H01
         K23U04J KC2023 10 20.18244 23 50 36.13 +31 18 30.0          21.8 RoEU184291
         K23U04J KC2023 10 20.18994 23 50 36.69 +31 18 19.4          22.0 RoEU184291
         K23U04J KC2023 10 20.19744 23 50 37.27 +31 18 08.3          22.1 RoEU184291
         K23U04J KC2023 10 21.13774 23 52 05.39 +30 54 18.2          22.1 GVEU184291
         K23U04J KC2023 10 21.14834 23 52 06.29 +30 54 02.3          22.3 GVEU184291
         K23U04J KC2023 10 21.15884 23 52 07.16 +30 53 46.1          22.7 GVEU184291
    
    Observer details:
    291 LPL/Spacewatch II.  Observer M. J. Brucker.  1.8-m f/2.7 reflector + CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
    V00 Kitt Peak-Bok.  Observer R. A. Mastaler.  Measurers M. J. Brucker, C. E.
        Woodward, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, H. Groeller, J.
        K. Hogan, R. A. Kowalski, S. M. Larson, C. Lejoly, G. J. Leonard, R. A.
        Mastaler, R. S. McMillan, D. Rankin, R. L. Seaman, A. Serrano, F. C.
        Shelly, K. W. Wierzchos.  2.25-m reflector + 4x4K mosaic CCD.
    
    Orbital elements:
    2023 UJ4                                                 Earth MOID = 0.1670 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Bell                    
    M 344.44197              (2000.0)            P               Q                  
    n   0.20730192     Peri.  188.88577     +0.52259664     -0.83208273             
    a   2.8274863      Node   229.84540     +0.79640618     +0.55423366             
    e   0.5918576      Incl.   14.07130     +0.30435169     -0.02152601             
    P   4.75           H   23.62          G   0.15           U   9                  
    Residuals in seconds of arc
    231019 V00  0.1+  0.2-    231019 H01  0.0   0.1+    231020 291  0.1-  0.1+
    231019 V00  0.1-  0.1+    231019 H01  0.0   0.1+    231021 291  0.1-  0.4-
    231019 V00  0.1+  0.5-    231019 H01  0.0   0.1+    231021 291  0.0   0.2-
    231019 V00  0.1-  0.4+    231020 291  0.2+  0.1-    231021 291  0.2-  0.4-
    231019 H01  0.0   0.1+    231020 291  0.1-  0.2+
    
    Ephemeris:
    2023 UJ4                 a,e,i = 2.83, 0.59, 14                  q = 1.1540
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 09 21    23 35 06.9 +35 06 14   0.4629  1.4043   143.7    25.0    23.8
    ...
    2023 10 06    23 37 44.8 +34 56 56   0.3598  1.3141   146.1    25.1    23.2
    ...
    2023 10 14    23 43 06.3 +33 24 17   0.3135  1.2719   146.9    25.4    22.8
    ...
    2023 10 20    23 50 19.2 +31 22 59   0.2827  1.2437   147.4    25.5    22.5
    2023 10 21    23 51 51.1 +30 57 56   0.2780  1.2393   147.5    25.6    22.5
    2023 10 22    23 53 29.2 +30 31 25   0.2733  1.2349   147.6    25.6    22.4
    ...
    2023 10 28    00 05 35.7 +27 19 56   0.2476  1.2112   148.2    25.6    22.2
    ...
    2023 11 05    00 28 18.0 +21 31 29   0.2202  1.1853   148.7    25.8    21.9
    ...
    2023 11 20    01 29 47.1 +06 36 39   0.1974  1.1573   146.1    28.5    21.7
    
    M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-U184
    


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