[Iaude] MPEC Y37: 2023 XE18 [a=2.05,e=0.65,i=8.6,H=21.8,PHA]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 17 20:18:03 EST 2023 

M.P.E.C. 2023-Y37                             Issued 2023 December 18, 01:16 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 XE18                                    


Observations:
     K23X18E*1C2023 12 15.12263900 54 28.026+22 57 19.66         20.92GVEY037G96
     K23X18E 1C2023 12 15.12794700 54 30.625+22 57 20.20               VEY037G96
     K23X18E 1C2023 12 15.13330800 54 33.224+22 57 21.24         21.04GVEY037G96
     K23X18E 1C2023 12 15.13860100 54 35.831+22 57 22.03         21.53GVEY037G96
     K23X18E KC2023 12 15.22638900 55 18.592+22 57 31.07         21.06GVEY037I52
     K23X18E KC2023 12 15.22948300 55 20.032+22 57 30.06         21.29GVEY037I52
     K23X18E KC2023 12 15.23257900 55 21.533+22 57 30.49         21.41GVEY037I52
     K23X18E KC2023 12 16.06914301 02 08.077+22 58 37.81         21.68GVEY037I52
     K23X18E KC2023 12 16.07223201 02 09.481+22 58 37.78         21.31GVEY037I52
     K23X18E KC2023 12 16.07532601 02 10.900+22 58 38.03         21.36GVEY037I52
     K23X18E KC2023 12 16.07842201 02 12.322+22 58 37.85         21.37GVEY037I52
     K23X18E KC2023 12 16.08152201 02 13.830+22 58 37.63         21.84GVEY037I52
     K23X18E KC2023 12 16.08462901 02 15.238+22 58 38.46         21.22GVEY037I52
     K23X18E KC2023 12 16.09082001 02 18.114+22 58 38.86         21.06GVEY037I52
     K23X18E  C2023 12 16.15739201 02 48.782+22 58 40.59         21.7 GVEY037H01
     K23X18E  C2023 12 16.16100101 02 50.453+22 58 40.62         21.4 GVEY037H01
     K23X18E  C2023 12 16.17290201 02 55.944+22 58 40.75         21.4 GVEY037H01
     K23X18E  C2023 12 16.17937901 02 58.949+22 58 40.88         21.4 GVEY037H01
     K23X18E KC2023 12 17.81891 01 15 20.01 +22 58 13.2          21.4 GVEY037204
     K23X18E KC2023 12 17.84583 01 15 31.44 +22 58 11.5                VEY037204
     K23X18E KC2023 12 17.86895 01 15 41.27 +22 58 09.5                VEY037204

Observer details:
204 Schiaparelli Observatory.  Observers L. Buzzi, G. Galli.  0.84-m f/3.5
    reflector + 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.  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 XE18                                           PHA, Earth MOID = 0.0409 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                MPC                     
M 349.52975              (2000.0)            P               Q                  
n   0.33501610     Peri.   60.07097     +0.92298617     +0.35499630             
a   2.0531732      Node   278.79196     -0.38405262     +0.82512225             
e   0.6540890      Incl.    8.64665     -0.02449731     +0.43948936             
P   2.94           H   21.87          G   0.15           U   9                  
Residuals in seconds of arc
231215 G96  0.3-  0.3-    231216 I52  0.5+  0.3+    231216 H01  0.1-  0.0
231215 G96  0.1-  0.4-    231216 I52  0.1+  0.1+    231216 H01  0.0   0.0
231215 G96  0.2-  0.0     231216 I52  0.2-  0.2+    231216 H01  0.1-  0.1-
231215 G96  0.2+  0.2+    231216 I52  0.4-  0.2-    231216 H01  0.0   0.1-
231215 I52  0.9+  1.1+    231216 I52  0.6+  0.6-    231217 204  0.2+  0.0
231215 I52  0.0   0.1-    231216 I52  0.2+  0.0     231217 204  0.1-  0.3+
231215 I52  0.1-  0.1+    231216 I52  0.3+  0.1+    231217 204  0.0   0.2+

Ephemeris:
2023 XE18                a,e,i = 2.05, 0.65, 9                   q = 0.7102
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 18    19 30 55.3 +03 45 53   0.2685  0.9004    63.3   101.3    22.5
...
2023 12 03    22 40 02.5 +19 14 44   0.2382  1.0473    98.3    68.7    21.3
...
2023 12 11    00 16 26.6 +22 33 43   0.2874  1.1297   113.3    53.2    21.4
...
2023 12 17    01 09 17.7 +22 58 55   0.3452  1.1919   119.3    46.0    21.7
2023 12 18    01 16 37.9 +22 58 11   0.3560  1.2023   120.0    45.1    21.8
2023 12 19    01 23 36.3 +22 56 37   0.3672  1.2127   120.6    44.3    21.8
...
2023 12 25    01 58 59.7 +22 37 09   0.4398  1.2747   122.4    40.6    22.2
...
2024 01 02    02 33 51.3 +22 05 02   0.5483  1.3566   122.1    37.9    22.7
...
2024 01 17    03 19 24.8 +21 24 47   0.7784  1.5063   117.0    35.6    23.7

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-Y37

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