[Iaude] MPEC J182: 2017 DA160 [a=42.91,e=0.05,i=4.9,H=8.76]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-J182                                  Issued 2024 May 8, 18:01 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 DA160                                   


Additional Observations:
     K17DG0A 1C2016 04 04.46276912 42 45.50 +00 39 56.3                WEJ182T09
     K17DG0A 1C2016 04 04.56002612 42 45.05 +00 39 59.1                WEJ182T09
     K17DG0A 1C2016 04 06.48443512 42 36.44 +00 40 52.2                WEJ182T09
     K17DG0A 1C2016 04 06.60525012 42 35.90 +00 40 55.5                WEJ182T09
     K17DG0A 1C2017 04 27.38463412 46 09.24 +00 15 19.8                WEJ182T09
     K17DG0A 1C2017 04 27.41135812 46 09.13 +00 15 20.4                WEJ182T09

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, reference and Delta-T
160404 T09 89.4+ 46.6+    170427 T09  3.1+  0.1+    MPO810817   -3108 days

Orbital elements:
2017 DA160                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 308.52459              (2000.0)            P               Q                  
n   0.00350687     Peri.  172.38641     -0.22701111     +0.97017002             
a  42.9064765      Node    84.46404     -0.89797233     -0.17470444             
e   0.0527093      Incl.    4.90270     -0.37697700     -0.16807290             
P 281              H    8.76          G   0.15           U   8                  
Residuals in seconds of arc
160404 T09  0.0   0.1-    170221 T09  0.2+  0.2-    170304 T09  0.1+  0.0
160404 T09  0.1-  0.0     170223 T09  0.0   0.0     170304 T09  0.1+  0.0
160406 T09  0.0   0.0     170223 T09  0.0   0.4+    170304 T09  0.3-  0.2-
160406 T09  0.1+  0.0     170223 T09  0.0   0.1+    170427 T09  0.0   0.0
170221 T09  0.2-  0.3+    170223 T09  0.2-  0.2+    170427 T09  0.0   0.0
170221 T09  0.2+  0.4-    170223 T09  0.1-  0.0

Ephemeris:
2017 DA160               a,e,i = 42.91, 0.05, 5                  q = 40.6449
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 08    13 22 59.2 -03 52 06  40.5761 41.5736   174.9     0.1    24.9
...
2024 04 23    13 21 51.0 -03 45 32  40.5933 41.5719   166.6     0.3    25.0
...
2024 05 01    13 21 16.0 -03 42 21  40.6293 41.5709   158.9     0.5    25.0
...
2024 05 07    13 20 50.9 -03 40 10  40.6678 41.5702   153.1     0.6    25.0
2024 05 08    13 20 46.9 -03 39 49  40.6752 41.5701   152.1     0.7    25.0
2024 05 09    13 20 42.9 -03 39 29  40.6828 41.5700   151.2     0.7    25.0
...
2024 05 15    13 20 19.8 -03 37 35  40.7340 41.5693   145.3     0.8    25.0
...
2024 05 23    13 19 52.0 -03 35 26  40.8155 41.5684   137.6     0.9    25.1
...
2024 06 07    13 19 10.6 -03 32 44  41.0039 41.5667   123.1     1.2    25.1

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-J182