[Iaude] MPEC X218: 2023 XZ9 [a=2.72,e=0.65,i=11.1,H=20.4]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Dec 11 15:10:13 EST 2023


M.P.E.C. 2023-X218                            Issued 2023 December 11, 20:08 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 XZ9                                    


Observations:
     K23X09Z 1C2023 12 08.05807 22 15 51.44 +27 49 19.8                VEX218703
     K23X09Z 1C2023 12 08.06024 22 15 52.77 +27 49 25.1                VEX218703
     K23X09Z 1C2023 12 08.06239 22 15 54.04 +27 49 31.8          20.1 GVEX218703
     K23X09Z* C2023 12 10.05777322 37 01.909+29 23 06.22         19.39GVEX218703
     K23X09Z  C2023 12 10.05991322 37 03.320+29 23 12.16         19.65GVEX218703
     K23X09Z  C2023 12 10.06204422 37 04.825+29 23 16.66         19.20GVEX218703
     K23X09Z  C2023 12 10.06417622 37 06.334+29 23 21.70         19.87GVEX218703
     K23X09Z  C2023 12 10.09908522 37 28.830+29 24 55.48         19.17GVEX218I52
     K23X09Z  C2023 12 10.10171022 37 30.515+29 25 02.57         18.97GVEX218I52
     K23X09Z  C2023 12 10.10190322 37 30.655+29 25 02.96         19.07GVEX218I52
     K23X09Z  C2023 12 10.10456922 37 32.365+29 25 10.31         19.43GVEX218I52
     K23X09Z  C2023 12 10.19369922 38 30.752+29 29 02.39         19.1 GVEX218H01
     K23X09Z  C2023 12 10.19674522 38 32.795+29 29 12.30         19.20GVEX218I52
     K23X09Z  C2023 12 10.19688022 38 32.848+29 29 10.71         19.0 GVEX218H01
     K23X09Z  C2023 12 10.19911822 38 34.393+29 29 18.46         19.05GVEX218I52
     K23X09Z  C2023 12 10.19931122 38 34.480+29 29 19.36         19.08GVEX218I52
     K23X09Z  C2023 12 10.20167622 38 36.038+29 29 24.83         19.19GVEX218I52
     K23X09Z  C2023 12 10.21244222 38 43.153+29 29 50.97         19.1 GVEX218H01
     K23X09Z  C2023 12 10.21836422 38 47.095+29 30 06.31         19.1 GVEX218H01
     K23X09Z KB2023 12 10.67243 22 43 57.10 +29 50 19.5                XEX218M45
     K23X09Z KB2023 12 10.67565 22 43 59.29 +29 50 27.7          19.1 GXEX218M45
     K23X09Z KB2023 12 10.67879 22 44 01.38 +29 50 36.0          18.9 GXEX218M45
     K23X09Z KC2023 12 10.73987322 44 42.81 +29 53 16.2          19.2 GVEX218L01
     K23X09Z KC2023 12 10.74086422 44 43.50 +29 53 18.8          19.4 GVEX218L01
     K23X09Z KC2023 12 10.74185522 44 44.15 +29 53 21.5          19.3 GVEX218L01
     K23X09Z KC2023 12 10.74284722 44 44.84 +29 53 24.0          19.1 GVEX218L01
     K23X09Z KC2023 12 10.74383722 44 45.51 +29 53 26.1          19.5 GVEX218L01
     K23X09Z 6C2023 12 10.77350522 45 06.044+29 54 50.70         19.1 GVEX218Z84
     K23X09Z 6C2023 12 10.77575322 45 07.531+29 54 56.62         19.0 GVEX218Z84
     K23X09Z 6C2023 12 10.77801122 45 09.057+29 55 02.31         19.0 GVEX218Z84
     K23X09Z KB2023 12 11.72163 22 56 11.32 +30 34 59.0          19.0 GVEX218130
     K23X09Z KB2023 12 11.72758 22 56 15.48 +30 35 13.6          18.9 GVEX218130
     K23X09Z KB2023 12 11.73353 22 56 19.67 +30 35 28.4          19.3 GVEX218130
     K23X09Z KC2023 12 11.76808 22 56 43.45 +30 36 55.4          19.4 VZEX218M63
     K23X09Z KC2023 12 11.77170 22 56 46.01 +30 37 04.2          19.6 VZEX218M63
     K23X09Z KC2023 12 11.77532 22 56 48.55 +30 37 12.7          19.3 VZEX218M63

Observer details:
130 Lumezzane.  Observers A. Coffano, W. Marinello, M. Micheli, G. Pizzetti,
    A. Soffiantini.  Measurer W. Marinello.  0.40-m f/6 reflector + CMO.
703 Catalina Sky Survey.  Observers R. A. Kowalski, D. C. Fuls.  Measurers B.
    Gray, D. Rankin, F. C. Shelly, 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, R. L. Seaman, K. W. Wierzchos.  0.68-m
    Schmidt + 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.  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.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
M45 Starhopper Observatory, Sfantu Gheorghe.  Observer F. Ursache.  0.41-m
    f/7.5 reflector + CMO.
M63 RPF Observatory, Gagliano del Capo.  Observer D. Licchelli.  0.30-m f/5.3
    reflector + CCD.
Z84 Calar Alto-Schmidt.  Observers M. Micheli, R. Kresken.  Measurers R.
    Kresken, M. Micheli, F. Ocana, L. Conversi.  0.8-m f/3 Schmidt + CCD.

Orbital elements:
2023 XZ9                                                 Earth MOID = 0.1153 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Bell                    
M 346.19270              (2000.0)            P               Q                  
n   0.21964754     Peri.  111.86160     +0.80036541     -0.56976131             
a   2.7205193      Node   283.34175     +0.45450108     +0.77953921             
e   0.6471030      Incl.   11.05124     +0.39095265     +0.26017431             
P   4.49           H   20.41          G   0.15           U   9                  
Residuals in seconds of arc
231208 703  0.6-  0.5+    231210 I52  0.1-  0.1-    231210 L01  0.2-  0.2+
231208 703  0.1+  0.4-    231210 H01  0.1+  0.1-    231210 L01  0.0   0.1+
231208 703  0.2+  0.1+    231210 I52  0.3+  0.1-    231210 L01  0.1+  0.4-
231210 703  0.9-  1.1+    231210 I52  0.2-  0.3+    231210 Z84  0.1+  0.1-
231210 703  0.6-  1.3+    231210 I52  0.3-  0.4-    231210 Z84  0.1-  0.0
231210 703  1.0+  0.0     231210 H01  0.1-  0.2-    231210 Z84  0.0   0.1-
231210 703 (2.7+  0.7-)   231210 H01  0.0   0.1-    231211 130  0.1-  0.0
231210 I52  0.3+  0.3-    231210 M45  0.2-  0.4+    231211 130  0.1-  0.0
231210 I52  0.0   0.2-    231210 M45  0.2+  0.1+    231211 130  0.2+  0.2+
231210 I52  0.2+  0.3-    231210 M45  0.0   0.2+    231211 M63  0.1-  0.2-
231210 I52  0.1-  0.1-    231210 L01  0.3-  0.0     231211 M63  0.2+  0.1-
231210 H01  0.2+  0.1-    231210 L01  0.0   0.0     231211 M63  0.1+  0.3-

Ephemeris:
2023 XZ9                 a,e,i = 2.72, 0.65, 11                  q = 0.9601
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 11    19 45 58.7 +09 45 13   0.3489  0.9616    75.1    84.4    21.0
...
2023 11 26    20 45 49.7 +18 20 15   0.2616  0.9728    79.3    85.4    20.4
...
2023 12 04    21 38 58.7 +24 29 43   0.2215  0.9970    86.5    80.7    19.9
...
2023 12 10    22 36 23.5 +29 20 28   0.1998  1.0226    95.2    73.6    19.5
2023 12 11    22 47 42.6 +30 04 44   0.1973  1.0274    96.9    72.1    19.5
2023 12 12    22 59 31.1 +30 46 29   0.1951  1.0324    98.7    70.5    19.4
...
2023 12 18    00 18 28.2 +33 34 00   0.1905  1.0652   110.3    60.1    19.1
...
2023 12 26    02 04 22.0 +32 31 13   0.2098  1.1159   124.5    46.6    19.0
...
2024 01 10    04 09 26.6 +24 35 49   0.3116  1.2268   136.0    33.8    19.7

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-X218




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