• Processing (Info)

    • MPEC 2023-X216 : 2023 XW9

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.

    Read MPEC 2023-X215 Read MPEC 2023-X217 

    M.P.E.C. 2023-X216                            Issued 2023 December 11, 18:37 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                2023 XW9                                 


Observations:
     K23X09W*1C2023 12 08.32761604 48 09.670-11 31 14.59         20.21GVEX216G96
     K23X09W 1C2023 12 08.33271704 48 12.748-11 30 00.83         20.25GVEX216G96
     K23X09W 1C2023 12 08.33781904 48 15.844-11 28 47.93         20.58GVEX216G96
     K23X09W 1C2023 12 08.34290404 48 18.889-11 27 34.42         20.07GVEX216G96
     K23X09W KC2023 12 08.39170304 48 48.157-11 15 58.90         20.24GVEX216I52
     K23X09W KC2023 12 08.39331304 48 49.100-11 15 35.71         20.26GVEX216I52
     K23X09W KC2023 12 08.39493204 48 50.072-11 15 12.92         20.66GVEX216I52
     K23X09W KC2023 12 08.39653904 48 51.080-11 14 50.68         20.95GVEX216I52
     K23X09W KC2023 12 08.48492604 49 56.318-10 50 37.82         21.0 GVEX216474
     K23X09W KC2023 12 08.48680604 49 57.403-10 50 12.73         20.9 GVEX216474
     K23X09W KC2023 12 08.48868404 49 58.471-10 49 48.14         20.8 GVEX216474
     K23X09W KC2023 12 08.49056104 49 59.486-10 49 22.04         20.4 GVEX216474
     K23X09W KC2023 12 09.26560704 57 04.620-08 19 13.90         21.63GVEX216I52
     K23X09W KC2023 12 09.26688104 57 05.080-08 19 00.40               VEX216I52
     K23X09W KC2023 12 09.26815804 57 05.590-08 18 47.00               VEX216I52

Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore, P. M.
    Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 Reflector + CCD.
G96 Mt. Lemmon Survey.  Observer D. Rankin.  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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer 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 XW9                                                 Earth MOID = 0.0141 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Bell                    
M 346.26109              (2000.0)            P               Q                  
n   0.32300955     Peri.  127.64679     +0.97798945     -0.18293144             
a   2.1037420      Node   243.09551     +0.13765316     +0.92713626             
e   0.6207459      Incl.    6.46202     +0.15680639     +0.32703890             
P   3.05           H   26.17          G   0.15           U   8                  
Residuals in seconds of arc
231208 G96  0.3-  0.1+    231208 I52  0.2-  0.1+    231208 474  0.3+  0.7-
231208 G96  0.2-  0.4+    231208 I52  0.2-  0.0     231208 474  0.6-  0.1+
231208 G96  0.1+  0.2-    231208 I52  0.5+  0.5-    231209 I52  0.5+  0.0
231208 G96  0.1-  0.3+    231208 474  0.3+  0.4+    231209 I52  0.5-  0.2+
231208 I52  0.1+  0.3-    231208 474  0.4+  0.1+    231209 I52  0.8-  0.3+

Ephemeris:
2023 XW9                 a,e,i = 2.10, 0.62, 6                   q = 0.7979
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 11    17 44 52.9 -13 01 05   0.2148  0.8356    39.4   131.2    28.3
...
2023 11 26    18 16 14.0 -20 04 40   0.07373 0.9245    30.9   146.8    28.2
...
2023 12 04    00 56 31.7 -53 28 26   0.01823 0.9861    90.5    88.4    20.6
...
2023 12 10    05 02 12.4 -06 22 56   0.05849 1.0364   150.8    27.6    21.3
2023 12 11    05 07 37.7 -04 20 36   0.06722 1.0450   152.7    25.6    21.6
2023 12 12    05 11 46.4 -02 45 24   0.07607 1.0537   154.2    24.0    21.8
...
2023 12 18    05 24 36.7 +02 24 27   0.1310  1.1071   158.7    18.8    22.9
...
2023 12 26    05 31 26.0 +05 26 06   0.2084  1.1806   159.1    17.3    24.0
...
2024 01 10    05 39 19.3 +08 33 05   0.3697  1.3211   151.9    20.5    25.6

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-X216

    Read MPEC 2023-X215 Read MPEC 2023-X217

    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)