[Iaude] MPEC M68: 2017 DF165 [a=42.59,e=0.06,i=3.7,H=8.90]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-M68                                 Issued 2024 June 27, 02:41 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 DF165                                   


Additional Observations:
     K17DG5F 1C2016 04 04.47852912 32 36.96 +00 31 37.6                WEM068T09
     K17DG5F 1C2016 04 04.55577212 32 36.59 +00 31 39.8                WEM068T09
     K17DG5F 1C2016 06 05.32849612 29 12.92 +00 49 41.4                WEM068T09
     K17DG5F 1C2017 01 30.65708212 41 52.90 -00 31 44.9                WEM068T09
     K17DG5F 1C2017 02 02.66474612 41 47.14 -00 30 53.0                WEM068T09
     K17DG5F 1C2019 04 03.44538612 48 44.10 -01 15 44.6                WEM068T09

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 0.14- 0.06-    190403 T09 0.28- 0.13-    MPO824973  +29858 days

Orbital elements:
2017 DF165                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 328.60134              (2000.0)            P               Q                  
n   0.00354573     Peri.  148.24980     -0.58602672     +0.80772278             
a  42.5923999      Node    85.79698     -0.75630410     -0.51669021             
e   0.0599179      Incl.    3.70650     -0.29082089     -0.28392804             
P 278              H    8.90          G   0.15           U   6                  
Residuals in seconds of arc
160404 T09  0.0   0.0     170221 T09  0.1+  0.1-    170223 T09  0.1+  0.0
160404 T09  0.1-  0.0     170221 T09  0.1+  0.0     170223 T09  0.1-  0.0
160605 T09  0.1+  0.1-    170221 T09  0.0   0.1+    190403 T09  0.0   0.1-
170130 T09  0.0   0.0     170223 T09  0.2-  0.1+
170202 T09  0.2+  0.1-    170223 T09  0.1-  0.1+

Ephemeris:
2017 DF165               a,e,i = 42.59, 0.06, 4                  q = 40.0404
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 05 28    13 11 45.3 -03 51 54  39.7804 40.4537   131.1     1.1    25.1
...
2024 06 12    13 11 11.0 -03 49 39  39.9871 40.4524   116.6     1.3    25.1
...
2024 06 20    13 11 00.1 -03 49 17  40.1101 40.4516   109.0     1.4    25.1
...
2024 06 26    13 10 55.5 -03 49 23  40.2064 40.4511   103.2     1.4    25.1
2024 06 27    13 10 55.0 -03 49 26  40.2227 40.4510   102.3     1.4    25.1
2024 06 28    13 10 54.7 -03 49 30  40.2390 40.4509   101.3     1.4    25.1
...
2024 07 04    13 10 54.3 -03 50 03  40.3383 40.4504    95.6     1.4    25.2
...
2024 07 12    13 10 58.9 -03 51 18  40.4720 40.4497    88.0     1.4    25.2
...
2024 07 27    13 11 22.7 -03 55 11  40.7190 40.4483    73.9     1.4    25.2

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-M68