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  • MPEC 2023-H171 : 2023 HM4

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    M.P.E.C. 2023-H171                               Issued 2023 April 25, 11:43 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 HM4                                 
    
    
    Observations:
         K23H04M 1C2023 04 14.47392 16 48 18.61 +22 54 04.6          21.6 GVEH171G96
         K23H04M 1C2023 04 14.47905 16 48 16.78 +22 53 53.4          21.7 GVEH171G96
         K23H04M*1C2023 04 23.36879216 08 59.438+17 01 27.30         21.48GVEH171G96
         K23H04M 1C2023 04 23.37352516 08 57.527+17 01 13.19         21.25GVEH171G96
         K23H04M 1C2023 04 23.37824716 08 55.630+17 01 01.88         20.71GVEH171G96
         K23H04M KC2023 04 23.42959016 08 34.740+16 58 38.80         21.31GVEH171I52
         K23H04M KC2023 04 23.43114716 08 34.080+16 58 34.10         21.14GVEH171I52
         K23H04M KC2023 04 23.43270216 08 33.440+16 58 29.80         20.89GVEH171I52
         K23H04M KC2023 04 24.36561916 04 17.677+16 14 57.98         21.10GVEH171I52
         K23H04M KC2023 04 24.36730916 04 16.997+16 14 53.27         21.08GVEH171I52
         K23H04M KC2023 04 24.36900616 04 16.320+16 14 49.02         20.74GVEH171I52
         K23H04M KC2023 04 24.37069916 04 15.618+16 14 43.87         20.91GVEH171I52
         K23H04M KC2023 04 25.33688815 59 45.456+15 28 21.18         20.91GVEH171I52
         K23H04M KC2023 04 25.33820415 59 44.963+15 28 17.18         20.35GVEH171I52
         K23H04M KC2023 04 25.33952415 59 44.383+15 28 14.45         20.37GVEH171I52
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observers J. K. Hogan, D. Rankin.  Measurers B. Gray,
        D. Rankin, F. C. Shelly, E. J. Christensen, 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, A. Serrano, K. W. Wierzchos.
        1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer A. Serrano.  Measurers
        E. J. Christensen, 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, A. Serrano, F. C. Shelly, K. W.
        Wierzchos.  1.0-m prime focus + CCD.
    
    Orbital elements:
    2023 HM4                                                 Earth MOID = 0.0129 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M  43.83141              (2000.0)            P               Q                  
    n   0.96588113     Peri.   33.01345     -0.30867510     -0.95085786             
    a   1.0135696      Node    74.97597     +0.86714279     -0.29180102             
    e   0.0528238      Incl.    1.43992     +0.39087474     -0.10354465             
    P   1.02           H   27.51          G   0.15           U   5                  
    Residuals in seconds of arc
    230414 G96  0.5-  0.1+    230423 I52  0.3+  0.1+    230424 I52  0.2+  0.3+
    230414 G96  0.5+  0.1-    230423 I52  0.1-  0.2-    230424 I52  0.1+  0.1-
    230423 G96  0.3-  0.1+    230423 I52  0.3-  0.0     230425 I52  0.2-  0.0
    230423 G96 (0.1-  1.3-)   230424 I52  0.1-  0.1-    230425 I52  0.3+  0.4-
    230423 G96  0.2+  0.1+    230424 I52  0.0   0.1-    230425 I52  0.3-  0.6+
    
    Ephemeris:
    2023 HM4                 a,e,i = 1.01, 0.05, 1                   q = 0.9600
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 03 26    17 55 11.5 +31 14 27   0.02832 0.9996    93.8    84.6    22.7
    ...
    2023 04 10    17 05 41.4 +25 16 05   0.02682 1.0129   114.4    64.2    22.0
    ...
    2023 04 18    16 33 27.4 +20 48 29   0.02611 1.0199   127.4    51.4    21.5
    ...
    2023 04 24    16 05 58.4 +16 33 46   0.02605 1.0250   138.1    40.9    21.3
    2023 04 25    16 01 15.5 +15 46 21   0.02610 1.0259   139.9    39.2    21.2
    2023 04 26    15 56 32.3 +14 57 38   0.02617 1.0267   141.7    37.4    21.2
    ...
    2023 05 02    15 28 46.4 +09 44 47   0.02707 1.0315   151.7    27.6    21.0
    ...
    2023 05 10    14 55 44.6 +02 32 23   0.02967 1.0374   159.9    19.5    20.9
    ...
    2023 05 25    14 14 18.7 -08 52 38   0.03906 1.0470   150.8    28.1    21.8
    
    M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-H171
    


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