[Iaude] MPEC U178: 2023 UC4 [a=1.17,e=0.36,i=14.1,H=24.8]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Oct 21 16:12:36 EDT 2023


M.P.E.C. 2023-U178                             Issued 2023 October 21, 20:11 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 UC4                                    


Observations:
     K23U04C* C2023 10 18.36555701 56 13.060+13 27 29.42         21.63wXEU178F52
     K23U04C  C2023 10 18.37522301 56 11.327+13 26 34.53         21.52wXEU178F52
     K23U04C  C2023 10 18.38494401 56 09.597+13 25 40.08         21.46wXEU178F52
     K23U04C  C2023 10 18.39467401 56 07.851+13 24 45.34         21.61wXEU178F52
     K23U04C  C2023 10 18.51504701 55 46.310+13 13 27.86         21.34GVEU178F52
     K23U04C  C2023 10 18.51568401 55 46.162+13 13 23.88         21.66GVEU178F52
     K23U04C KC2023 10 19.20384401 54 03.038+12 10 14.92         22.63GVEU178I52
     K23U04C KC2023 10 19.20693101 54 02.488+12 09 57.85         21.25GVEU178I52
     K23U04C KC2023 10 19.21417601 54 01.285+12 09 19.15         21.88GVEU178I52
     K23U04C KC2023 10 19.21726701 54 00.767+12 09 02.77         21.67GVEU178I52
     K23U04C KC2023 10 21.19003501 49 21.65 +09 22 39.1          22.1 VuEU178H21
     K23U04C KC2023 10 21.19845201 49 20.41 +09 21 58.9          22.0 VuEU178H21
     K23U04C KC2023 10 21.20715101 49 19.14 +09 21 17.9          22.2 VuEU178H21

Observer details:
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, 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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.81-m f/4.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    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 UC4                                                 Earth MOID = 0.0646 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Bell                    
M  41.03687              (2000.0)            P               Q                  
n   0.77676525     Peri.   68.47041     +0.07130498     +0.99159362             
a   1.1720411      Node   206.33176     -0.98132371     +0.05035099             
e   0.3630461      Incl.   14.08814     -0.17865995     +0.11919262             
P   1.27           H   24.89          G   0.15           U   9                  
Residuals in seconds of arc
231018 F52  0.2-  0.2+    231018 F52  0.2-  0.1-    231021 H21  0.0   0.1+
231018 F52  0.3-  0.4-    231019 I52  0.5+  0.4+    231021 H21  0.1-  0.2-
231018 F52  0.1-  0.1-    231019 I52  0.1-  0.2-    231021 H21  0.0   0.1+
231018 F52  0.1-  0.2-    231019 I52  0.1-  0.2-
231018 F52  0.3+  0.3+    231019 I52  0.2-  0.1-

Ephemeris:
2023 UC4                 a,e,i = 1.17, 0.36, 14                  q = 0.7465
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 21    06 41 06.0 +69 47 32   0.1373  1.0010    84.7    87.4    23.7
...
2023 10 06    02 49 51.8 +39 56 10   0.1269  1.0934   135.0    40.3    22.2
...
2023 10 14    02 09 48.7 +21 14 15   0.1508  1.1413   161.0    16.5    22.0
...
2023 10 20    01 52 04.3 +11 00 59   0.1807  1.1763   176.0     3.3    21.9
2023 10 21    01 49 46.2 +09 38 15   0.1865  1.1820   177.5     2.1    21.8
2023 10 22    01 47 37.3 +08 20 35   0.1925  1.1877   177.4     2.2    21.9
...
2023 10 28    01 37 29.2 +02 07 55   0.2323  1.2213   167.0    10.5    22.8
...
2023 11 05    01 29 33.8 -02 59 53   0.2940  1.2642   155.0    19.4    23.7
...
2023 11 20    01 26 12.8 -06 59 32   0.4294  1.3383   137.9    29.7    25.0

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-U178




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