[Iaude] MPEC U266: 2023 UL9 [a=1.17,e=0.37,i=15.9,H=25.7]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Oct 26 09:41:23 EDT 2023


M.P.E.C. 2023-U266                             Issued 2023 October 26, 13:39 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2023 UL9                                    


Observations:
     K23U09L*1C2023 10 23.29005102 44 41.647+30 30 25.92         20.71GVEU266G96
     K23U09L 1C2023 10 23.29520702 44 36.114+30 30 58.03         20.70GVEU266G96
     K23U09L 1C2023 10 23.30035002 44 30.556+30 31 29.93         20.56GVEU266G96
     K23U09L 1C2023 10 23.30550902 44 25.040+30 32 02.29         21.36GVEU266G96
     K23U09L  C2023 10 23.32646402 44 01.850+30 34 08.17         20.9 GVEU266H01
     K23U09L  C2023 10 23.33180002 43 56.103+30 34 40.81         20.5 GVEU266H01
     K23U09L  C2023 10 23.34166602 43 45.527+30 35 40.61         20.3 GVEU266H01
     K23U09L  C2023 10 23.34854502 43 38.186+30 36 21.89         20.9 GVEU266H01
     K23U09L KC2023 10 23.40025702 42 43.636+30 41 32.89         20.81GVEU266I52
     K23U09L KC2023 10 23.40317102 42 40.576+30 41 49.92         20.76GVEU266I52
     K23U09L KC2023 10 23.40609002 42 37.472+30 42 06.77         21.05GVEU266I52
     K23U09L KC2023 10 23.40899902 42 34.409+30 42 23.65         20.83GVEU266I52
     K23U09L KC2023 10 24.22765002 29 48.13 +31 54 51.9          21.0 VuEU266H21
     K23U09L KC2023 10 24.23324302 29 42.92 +31 55 19.1                uEU266H21
     K23U09L KC2023 10 24.23604002 29 40.29 +31 55 32.5                uEU266H21
     K23U09L KC2023 10 26.45018102 02 03.310+34 05 59.10         21.02GVEU266I52
     K23U09L KC2023 10 26.45713802 01 58.740+34 06 15.20               VEU266I52
     K23U09L KC2023 10 26.47106902 01 49.750+34 06 47.20               VEU266I52

Observer details:
G96 Mt. Lemmon Survey.  Observer J. K. Hogan.  Measurers E. C. Beshore, 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, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K 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.
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.  Observers J. B. Fazekas, K. W.
    Wierzchos.  Measurers E. C. Beshore, 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, F. C. Shelly, K. W.
    Wierzchos.  1.0-m prime focus + CCD.

Orbital elements:
2023 UL9                                                 Earth MOID = 0.0122 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M  22.54897              (2000.0)            P               Q                  
n   0.77643797     Peri.  266.27788     +0.38448655     +0.91442815             
a   1.1723705      Node    27.43435     -0.69987174     +0.37807681             
e   0.3740432      Incl.   15.93036     -0.60195485     +0.14449597             
P   1.27           H   25.79          G   0.15           U   8                  
Residuals in seconds of arc
231023 G96  0.2-  0.1+    231023 H01  0.4-  0.1+    231024 H21  0.2+  0.4-
231023 G96  0.2+  0.1-    231023 H01  0.1-  0.1-    231024 H21  0.0   0.1+
231023 G96  0.1+  0.3-    231023 I52  0.0   0.1+    231024 H21  0.5-  0.1+
231023 G96  0.7+  0.1-    231023 I52  0.2+  0.1+    231026 I52  0.4+  0.1+
231023 H01  0.3-  0.0     231023 I52  0.0   0.0     231026 I52  0.3-  0.0
231023 H01  0.5-  0.2+    231023 I52  0.1+  0.0     231026 I52  0.1-  0.2-

Ephemeris:
2023 UL9                 a,e,i = 1.17, 0.37, 16                  q = 0.7339
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 26    10 53 28.3 -37 06 53   0.1647  0.8833    40.1   133.0    27.6
...
2023 10 11    08 38 46.8 -28 37 18   0.05741 0.9765    65.8   111.1    23.8
...
2023 10 19    04 28 09.6 +16 09 47   0.04246 1.0277   136.8    41.5    20.6
...
2023 10 25    02 19 05.5 +32 49 53   0.07637 1.0659   158.3    20.2    21.3
2023 10 26    02 07 01.2 +33 45 37   0.08339 1.0722   158.3    20.0    21.5
2023 10 27    01 56 38.8 +34 28 19   0.09060 1.0786   158.0    20.2    21.7
...
2023 11 02    01 17 27.0 +36 22 09   0.1365  1.1161   153.3    23.6    22.8
...
2023 11 10    00 55 36.4 +36 38 17   0.2024  1.1647   146.5    28.0    23.9
...
2023 11 25    00 48 30.2 +35 54 29   0.3373  1.2508   135.6    33.5    25.3

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-U266




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