[Iaude] MPEC X155: 2023 XN4 [a=2.14,e=0.52,i=11.7,H=22.8]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2023-X155                             Issued 2023 December 8, 15:47 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 XN4                                    


Observations:
     K23X04N  C2023 12 04.43725 05 39 27.35 +19 17 36.1                VEX155G96
     K23X04N  C2023 12 04.45260 05 39 28.62 +19 16 40.9          20.5 GVEX155G96
     K23X04N* C2023 12 07.51516105 44 16.449+15 58 26.46         20.50wXEX155F51
     K23X04N  C2023 12 07.52758205 44 17.450+15 57 34.15         20.89wXEX155F51
     K23X04N  C2023 12 07.54606405 44 18.949+15 56 16.13         20.38wXEX155F51
     K23X04N  C2023 12 07.55849305 44 19.975+15 55 23.15         20.67wXEX155F51
     K23X04N KC2023 12 07.89785 05 44 55.73 +15 31 08.3                VEX155104
     K23X04N KC2023 12 07.90363 05 44 56.24 +15 30 43.9          19.4 GVEX155104
     K23X04N KC2023 12 08.23989805 45 28.40 +15 06 38.2                VEX155H21
     K23X04N KC2023 12 08.24269405 45 28.64 +15 06 25.8          20.9 GVEX155H21
     K23X04N KC2023 12 08.24549005 45 28.88 +15 06 13.5          20.5 GVEX155H21
     K23X04N KC2023 12 08.24698105 45 28.99 +15 06 07.6          20.3 GVEX155H21
     K23X04N KC2023 12 08.30176005 45 34.35 +15 02 12.0          20.0 GXEX155858
     K23X04N KC2023 12 08.30871305 45 34.93 +15 01 41.6          19.8 GXEX155858
     K23X04N KC2023 12 08.31572905 45 35.53 +15 01 10.8          19.5 GXEX155858
     K23X04N !C2023 12 08.33148 05 45 37.31 +15 00 02.3          20.5 RVEX155673
     K23X04N !C2023 12 08.33486 05 45 37.64 +14 59 47.0                VEX155673

Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurer P.
    Bacci.  0.60-m f/4.0 reflector + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer J. Pittichova.  1.0-m
    f/15 reflector + CCD.
858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.51-m f/8.1
    Schmidt-Cassegrain + CCD.
F51 Pan-STARRS 1, 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.
G96 Mt. Lemmon Survey.  Observer J. K. Hogan.  Measurers B. Gray, D. Rankin,
    F. C. Shelly.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD.

Orbital elements:
2023 XN4                                                 Earth MOID = 0.1404 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                MPC                     
M 317.54673              (2000.0)            P               Q                  
n   0.31455387     Peri.  238.21873     -0.60867095     -0.76993159             
a   2.1412762      Node   250.49323     +0.77921764     -0.53457532             
e   0.5169410      Incl.   11.73042     +0.14946416     -0.34847465             
P   3.13           H   22.85          G   0.15           U   9                  
Residuals in seconds of arc
231204 G96  0.4-  0.3-    231207 104  0.0   0.1-    231208 858  0.1+  0.2+
231204 G96  0.3+  0.3+    231207 104  0.1+  0.0     231208 858  0.1+  0.1+
231207 F51  0.1+  0.1-    231208 H21  0.1-  0.1+    231208 858  0.4+  0.1-
231207 F51  0.1+  0.1+    231208 H21  0.0   0.1-    231208 673  0.2+  0.3-
231207 F51  0.0   0.2+    231208 H21  0.1+  0.3-    231208 673  0.8+  0.9-
231207 F51  0.1+  0.1-    231208 H21  0.1-  0.3+

Ephemeris:
2023 XN4                 a,e,i = 2.14, 0.52, 12                  q = 1.0344
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 08    05 03 13.2 +32 58 06   0.4384  1.3755   145.7    24.0    22.9
...
2023 11 23    05 23 19.5 +27 47 07   0.3061  1.2762   157.8    17.0    21.7
...
2023 12 01    05 34 23.8 +22 25 39   0.2482  1.2268   164.1    12.7    21.0
...
2023 12 07    05 43 27.7 +16 34 07   0.2115  1.1920   166.5    11.2    20.6
2023 12 08    05 45 04.4 +15 24 16   0.2060  1.1864   166.4    11.3    20.5
2023 12 09    05 46 43.2 +14 10 54   0.2007  1.1809   166.1    11.6    20.4
...
2023 12 15    05 57 31.7 +05 32 46   0.1731  1.1493   160.8    16.3    20.2
...
2023 12 23    06 15 30.8 -09 18 56   0.1492  1.1119   147.1    28.7    20.2
...
2024 01 07    07 06 37.5 -39 41 10   0.1463  1.0596   117.8    55.2    20.8

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-X155