[Iaude] MPEC X158: 2023 XR4 [a=2.57,e=0.61,i=1.5,H=27.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Dec 8 13:23:57 EST 2023


M.P.E.C. 2023-X158                             Issued 2023 December 8, 18:22 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 XR4                                    


Observations:
     K23X04R* C2023 12 04.38006305 21 16.688+04 50 59.70         20.36wXEX158F52
     K23X04R  C2023 12 04.39291105 21 34.820+04 52 07.51         20.52wXEX158F52
     K23X04R  C2023 12 04.40576205 21 52.841+04 53 14.92         20.51wXEX158F52
     K23X04R  C2023 12 04.41861405 22 10.773+04 54 21.87         21.07GVEX158F52
     K23X04R |C2023 12 05.14235405 38 58.190+05 55 02.70         20.9 VuEX158807
     K23X04R |C2023 12 05.14890005 39 06.060+05 55 32.30         21.3 VuEX158807
     K23X04R |C2023 12 05.15544205 39 13.850+05 56 00.30         20.7 VuEX158807
     K23X04R |C2023 12 06.31189006 00 53.190+07 08 01.50         20.9 VuEX158807
     K23X04R |C2023 12 06.31580006 00 56.870+07 08 13.20         21.4 VuEX158807
     K23X04R |C2023 12 06.31971006 01 00.550+07 08 25.60         21.5 VuEX158807
     K23X04R KC2023 12 06.46968806 03 26.160+07 12 32.30               VEX158I52
     K23X04R KC2023 12 06.47281806 03 29.020+07 12 41.10         20.26GVEX158I52
     K23X04R KC2023 12 06.47594706 03 31.840+07 12 50.10         20.26GVEX158I52
     K23X04R KC2023 12 06.47906706 03 34.700+07 13 00.90         20.67GVEX158I52

Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
    Horn.  0.61-m f/11 Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Herman, 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.
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 XR4                                                 Earth MOID = 0.0020 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Bell                    
M 344.13469              (2000.0)            P               Q                  
n   0.23952869     Peri.  181.84151     +0.61955016     -0.78469669             
a   2.5678187      Node   229.87582     +0.72052156     +0.57872298             
e   0.6136374      Incl.    1.51500     +0.31145831     +0.22210541             
P   4.11           H   27.01          G   0.15           U   7                  
Residuals in seconds of arc
231204 F52  0.1-  0.2+    231205 807  0.5+  0.4+    231206 I52  0.1+  0.3+
231204 F52  0.2+  0.2+    231205 807  0.2-  0.1-    231206 I52  0.2+  0.5-
231204 F52  0.1+  0.2+    231206 807  0.6-  0.8+    231206 I52  0.4-  1.0-
231204 F52  0.1-  0.1+    231206 807  0.1+  0.1+    231206 I52  0.3-  0.3+
231205 807  0.4+  0.7-    231206 807  0.7+  0.1+

Ephemeris:
2023 XR4                 a,e,i = 2.57, 0.61, 2                   q = 0.9921
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 08    21 16 52.1 -12 57 03   0.1075  1.0017    92.6    81.2    25.0
...
2023 11 23    22 46 40.9 -13 06 04   0.04126 0.9942    98.0    79.6    22.9
...
2023 12 01    03 21 01.7 -02 18 42   0.02366 1.0070   151.3    28.1    20.1
...
2023 12 07    06 11 41.5 +07 40 14   0.04208 1.0238   155.7    23.3    21.3
2023 12 08    06 24 51.9 +08 21 50   0.04637 1.0272   154.4    24.5    21.5
2023 12 09    06 35 44.5 +08 55 39   0.05081 1.0307   153.3    25.4    21.8
...
2023 12 15    07 13 15.0 +10 55 20   0.07939 1.0550   151.8    26.1    22.8
...
2023 12 23    07 31 55.5 +12 17 57   0.1207  1.0951   156.0    21.4    23.7
...
2024 01 07    07 40 10.0 +14 06 19   0.2086  1.1887   168.8     9.3    24.6

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-X158




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