[Iaude] MPEC X149: 2023 XH4 [a=2.22,e=0.56,i=4.1,H=25.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Dec 8 03:48:32 EST 2023 

M.P.E.C. 2023-X149                             Issued 2023 December 8, 08:46 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 XH4                                    


Observations:
     K23X04H*1C2023 12 06.32139404 09 49.021-02 00 29.81         21.67GVEX149G96
     K23X04H 1C2023 12 06.32658704 09 50.216-02 01 00.01         20.60GVEX149G96
     K23X04H 1C2023 12 06.33177504 09 51.412-02 01 29.86         21.00GVEX149G96
     K23X04H 1C2023 12 06.33697104 09 52.664-02 01 59.99         21.51GVEX149G96
     K23X04H  C2023 12 06.35246404 09 56.113-02 03 32.50         20.8 GVEX149H01
     K23X04H  C2023 12 06.35759404 09 57.351-02 04 02.37         20.7 GVEX149H01
     K23X04H  C2023 12 06.36778504 09 59.812-02 05 01.84         20.9 GVEX149H01
     K23X04H  C2023 12 06.37500604 10 01.566-02 05 44.03         21.3 GVEX149H01
     K23X04H KC2023 12 06.40252504 10 08.476-02 08 22.49         20.60GVEX149I52
     K23X04H KC2023 12 06.40717504 10 09.595-02 08 50.53         21.05GVEX149I52
     K23X04H KC2023 12 06.41181504 10 10.754-02 09 17.28         22.15GVEX149I52
     K23X04H KC2023 12 06.41645604 10 11.968-02 09 44.06         20.98GVEX149I52
     K23X04H |C2023 12 07.19520004 13 53.390-03 26 43.10         20.9 VuEX149807
     K23X04H |C2023 12 07.20175004 13 55.120-03 27 23.20         20.8 VuEX149807
     K23X04H |C2023 12 07.20829004 13 56.750-03 28 04.50         21.3 VuEX149807
     K23X04H KC2023 12 07.22616504 14 05.276-03 31 37.24         21.53GVEX149I52
     K23X04H KC2023 12 07.23122504 14 06.558-03 32 09.31         21.36GVEX149I52
     K23X04H KC2023 12 07.23512 04 14 07.60 -03 32 32.7                VEX149691
     K23X04H KC2023 12 07.23943904 14 08.689-03 33 00.97         21.25GVEX149I52
     K23X04H KC2023 12 07.24363 04 14 09.83 -03 33 26.3          20.7 RVEX149691
     K23X04H KC2023 12 07.25214 04 14 12.05 -03 34 19.2          20.7 RVEX149691
     K23X04H !C2023 12 08.31029 04 19 38.58 -05 30 10.1          21.2 RVEX149673
     K23X04H !C2023 12 08.31844 04 19 40.84 -05 31 05.6                VEX149673

Observer details:
673 Table Mountain Observatory, Wrightwood.  Observer J. Pittichova.  1.0-m
    f/15 reflector + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer R. A. Mastaler.
    0.9-m f/3 reflector + CCD.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
    Horn.  0.61-m f/11 Ritchey-Chretien + CCD.
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.
I52 Steward Observatory, Mt. Lemmon Station.  Observers G. J. Leonard, 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 XH4                                                 Earth MOID = 0.0544 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                MPC                     
M 324.55341              (2000.0)            P               Q                  
n   0.29863427     Peri.  249.65961     -0.40210432     -0.91426627             
a   2.2167138      Node   224.15267     +0.86422347     -0.36121559             
e   0.5602893      Incl.    4.05753     +0.30237380     -0.18341346             
P   3.30           H   25.28          G   0.15           U   8                  
Residuals in seconds of arc
231206 G96  0.4+  0.2-    231206 I52  0.1+  0.4+    231207 I52  0.0   0.1-
231206 G96  0.0   0.2-    231206 I52  0.3-  0.5-    231207 691  0.8-  0.3+
231206 G96  0.5-  0.2+    231206 I52  0.1-  0.1-    231207 I52  0.0   0.1-
231206 G96  0.1-  0.3+    231206 I52  0.8+  0.3+    231207 691  0.4-  0.2+
231206 H01  0.0   0.0     231207 807  0.3-  0.4-    231207 691  0.1-  0.8+
231206 H01  0.1+  0.1+    231207 807  0.4+  0.5+    231208 673  0.7+  0.1-
231206 H01  0.1+  0.1+    231207 807  0.5-  0.0     231208 673  1.0-  0.2+
231206 H01  0.1+  0.0     231207 I52  0.5+  0.2+

Ephemeris:
2023 XH4                 a,e,i = 2.22, 0.56, 4                   q = 0.9747
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 08    03 22 02.1 +17 39 14   0.2606  1.2497   172.2     6.1    23.3
...
2023 11 23    03 35 32.7 +11 32 42   0.1616  1.1474   170.5     8.1    22.2
...
2023 12 01    03 51 15.9 +05 01 13   0.1184  1.0990   161.4    16.7    21.7
...
2023 12 07    04 12 57.9 -03 07 12   0.09065 1.0667   152.7    25.1    21.4
2023 12 08    04 17 58.9 -04 54 01   0.08651 1.0616   150.9    26.8    21.3
2023 12 09    04 23 32.8 -06 49 58   0.08254 1.0567   149.1    28.6    21.2
...
2023 12 15    05 13 35.6 -22 08 47   0.06337 1.0298   134.5    43.0    21.0
...
2023 12 23    07 42 22.9 -46 27 19   0.05713 1.0014   106.5    70.3    21.5
...
2024 01 07    12 18 10.4 -45 29 00   0.09970 0.9753    82.5    91.7    23.5

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-X149

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