[Iaude] MPEC K123: 2017 MD4 [a=2.30,e=0.47,i=23.2,H=21.12]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Wed May 29 10:11:07 EDT 2024


M.P.E.C. 2024-K123                                 Issued 2024 May 29, 14:09 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

                                    2017 MD4                                    


                           Revision to MPEC 2017-M78                            

Additional Observations:
     K17M04D KC2024 05 27.33330414 54 50.785-22 53 17.23               VEK123I52
     K17M04D KC2024 05 27.33542214 54 50.972-22 53 04.92         19.76GVEK123I52
     K17M04D KC2024 05 27.33597314 54 51.066-22 53 01.18         19.41GVEK123I52
     K17M04D KC2024 05 27.33670814 54 51.134-22 52 57.11         19.52GVEK123I52
     K17M04D KC2024 05 27.95651414 56 15.732-21 50 44.56         19.2 GVEK123J95
     K17M04D KC2024 05 27.95884314 56 16.018-21 50 29.90         19.2 GVEK123J95
     K17M04D KC2024 05 27.96117414 56 16.294-21 50 15.40         19.1 GVEK123J95
     K17M04D KC2024 05 29.25238114 59 11.054-19 39 13.07         19.64GVEK123I52
     K17M04D KC2024 05 29.25308114 59 11.148-19 39 08.35         19.47GVEK123I52
     K17M04D KC2024 05 29.25377914 59 11.231-19 39 04.50         19.42GVEK123I52
     K17M04D KC2024 05 29.25446714 59 11.317-19 39 00.04         19.35GVEK123I52
     K17M04D KC2024 05 29.25515314 59 11.404-19 38 55.64         19.43GVEK123I52

Observer details:
I52 Steward Observatory, Mt. Lemmon Station.  Observers R. A. Kowalski, V. F.
    Carvajal.  Measurers T. Beuden, V. F. Carvajal, 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.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
    + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240527 I52 2.25+ 0.21+    240529 I52 2.27+ 0.27+    E2024-AC4   +0.32 days

Orbital elements:
2017 MD4                                                 Earth MOID = 0.2205 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 339.40166              (2000.0)            P               Q                  
n   0.28194410     Peri.   10.80084     -0.25198329     +0.89896773             
a   2.3033541      Node   245.41883     -0.91465668     -0.34216263             
e   0.4662282      Incl.   23.20244     -0.31608161     +0.27346255             
P   3.50           H   21.12          G   0.15           U   0                  
Residuals in seconds of arc
170624 G96  0.2-  0.8+    170701 I52  0.5+  0.4-    170815 H21  0.0   0.4+
170624 G96  0.8-  1.4+    170721 H21  0.2-  0.1-    170815 H21  0.1+  0.7+
170624 G96  0.9-  1.1+    170721 H21  0.1+  0.4-    170816 H21  0.0   0.3+
170624 G96  0.0   0.2+    170721 H21  1.0+  1.2-    170816 H21  0.1-  0.3+
170625 H21  0.6+  0.2-    170722 H21  0.2-  0.0     170816 H21  0.0   0.0
170625 H21  0.1+  0.1-    170722 H21  0.1-  0.3-    170816 H21  0.1-  0.3+
170625 H21  0.5+  0.0     170722 H21  0.2+  0.4-    170824 H21  0.4-  0.2-
170625 I52  1.3+  0.6-    170722 J04  0.1-  0.1-    170824 H21  0.1+  0.0
170625 I52  0.2+  0.2-    170722 J04  0.0   0.0     170824 H21  0.1-  0.0
170625 I52  0.5+  1.3+    170722 J04  0.1+  0.0     170824 H21  0.3-  0.3-
170625 I52  0.3+  0.3+    170725 H21  0.1+  0.2+    240527 I52  0.7+  0.5+
170626 I52  0.3-  0.1+    170725 H21  0.2-  0.4+    240527 I52  0.3-  0.0
170626 I52  0.1-  0.0     170725 H21  0.3-  0.2+    240527 I52  0.0   0.4+
170626 I52  0.3-  0.1-    170726 H21  0.0   0.1-    240527 I52  0.3-  0.0
170627 I52  0.1+  0.2-    170726 H21  0.1-  0.3-    240527 J95  0.2+  0.4-
170627 I52  0.8-  0.5-    170726 H21  0.0   0.2+    240527 J95  0.2+  0.1+
170627 I52  0.2-  1.0-    170730 H21  0.2+  0.1-    240527 J95  0.0   0.5+
170628 G96  0.1-  0.4-    170730 H21  0.3+  0.0     240529 I52  0.2-  0.4-
170628 G96  0.2+  0.2+    170730 H21  0.1-  0.3-    240529 I52  0.0   0.1+
170628 G96  0.1-  0.5+    170731 H21  0.3+  0.0     240529 I52  0.1-  0.4-
170628 G96  0.2-  0.0     170731 H21  0.2+  0.1+    240529 I52  0.0   0.1-
170701 I52  0.0   0.2-    170731 H21  0.6+  0.0     240529 I52  0.0   0.1+
170701 I52  1.0-  0.8-    170815 H21  0.1+  0.5+

Ephemeris:
2017 MD4                 a,e,i = 2.30, 0.47, 23                  q = 1.2295
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 29    14 02 15.0 -53 30 19   0.3686  1.3130   140.7    29.1    20.8
...
2024 05 14    14 26 44.1 -41 56 55   0.2792  1.2670   153.7    20.7    19.9
...
2024 05 22    14 43 06.8 -31 23 56   0.2489  1.2494   160.3    15.8    19.4
...
2024 05 28    14 56 21.6 -21 45 50   0.2374  1.2397   160.6    15.8    19.3
2024 05 29    14 58 36.8 -20 04 30   0.2365  1.2384   160.0    16.3    19.3
2024 05 30    15 00 52.6 -18 22 31   0.2360  1.2372   159.3    16.9    19.3
...
2024 06 05    15 14 32.8 -08 16 15   0.2393  1.2317   152.4    22.4    19.5
...
2024 06 13    15 32 46.3 +03 37 11   0.2596  1.2295   141.5    30.9    20.0
...
2024 06 28    16 05 49.9 +17 58 28   0.3315  1.2410   126.1    41.5    20.8

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-K123





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