[Iaude] MPEC L120: 2017 DA165 [a=43.81,e=0.04,i=4.5,H=7.66]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-L120                                Issued 2024 June 11, 16:56 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 DA165                                   


Additional Observations:
     K17DG5A 1C2016 04 04.48064812 38 18.33 +00 52 12.5                WEL120T09
     K17DG5A 1C2016 04 04.49354912 38 18.27 +00 52 12.9                WEL120T09
     K17DG5A 1C2017 04 27.38087612 41 27.97 +00 30 17.5                WEL120T09
     K17DG5A 1C2017 04 27.41736312 41 27.82 +00 30 18.3                WEL120T09
     K17DG5A 1C2019 04 03.47758112 52 34.29 -00 41 46.8                WEL120T09
     K17DG5A 1C2019 04 06.44935912 52 21.40 -00 40 26.4                WEL120T09
     K17DG5A 1C2019 04 06.46046112 52 21.35 -00 40 26.1                WEL120T09

Observer details:
T09 Subaru Telescope, Maunakea.  Observer .  Measurer S. Deen.  8.3-m Subaru
    Telescope + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
160404 T09 0.34+ 0.16+    190406 T09 0.67+ 0.32+    MPO824973  +23796 days

Orbital elements:
2017 DA165                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M  88.96217              (2000.0)            P               Q                  
n   0.00339950     Peri.   14.11659     -0.26735195     -0.96036296             
a  43.8052235      Node    91.43539     +0.87625089     -0.27636711             
e   0.0353645      Incl.    4.52702     +0.40088317     -0.03638959             
P 290              H    7.66          G   0.15           U   5                  
Residuals in seconds of arc
160404 T09  0.0   0.0     170221 T09  0.1-  0.1-    170304 T09  0.1+  0.1+
160404 T09  0.0   0.0     170223 T09  0.0   0.2+    170427 T09  0.1+  0.0
170221 T09  0.1-  0.3-    170223 T09  0.0   0.2+    170427 T09  0.0   0.0
170221 T09  0.1+  0.1+    170223 T09  0.0   0.1-    190403 T09  0.0   0.0
170221 T09  0.2-  0.5-    170223 T09  0.0   0.1-    190406 T09  0.0   0.0
170221 T09  0.1+  0.3-    170304 T09  0.1+  0.4+    190406 T09  0.0   0.0
170221 T09  0.3-  0.4-    170304 T09  0.0   0.3+

Ephemeris:
2017 DA165               a,e,i = 43.81, 0.04, 5                  q = 42.2561
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 05 12    13 13 13.9 -02 59 40  42.9914 43.8358   146.3     0.7    24.2
...
2024 05 27    13 12 26.2 -02 55 58  43.1553 43.8372   131.8     1.0    24.2
...
2024 06 04    13 12 06.3 -02 54 40  43.2613 43.8379   124.1     1.1    24.2
...
2024 06 10    13 11 54.3 -02 54 02  43.3478 43.8385   118.3     1.2    24.2
2024 06 11    13 11 52.6 -02 53 57  43.3627 43.8386   117.4     1.2    24.2
2024 06 12    13 11 50.9 -02 53 53  43.3778 43.8386   116.4     1.2    24.2
...
2024 06 18    13 11 42.5 -02 53 40  43.4706 43.8392   110.6     1.2    24.2
...
2024 06 26    13 11 35.8 -02 53 50  43.5998 43.8399   103.0     1.3    24.2
...
2024 07 11    13 11 37.1 -02 55 40  43.8513 43.8413    88.8     1.3    24.3

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-L120