[Iaude] MPEC K49: 2017 EF53 [a=79.57,e=0.53,i=31.1,H=7.51]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-K49                                  Issued 2024 May 23, 15:59 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 EF53                                    


Additional Observations:
     K17E53F 5C2003 02 26.42656308 45 44.03 +18 09 34.0                WEK049T14
     K17E53F 5C2003 02 26.44182908 45 43.94 +18 09 34.1                WEK049T14
     K17E53F 5C2003 02 26.45307408 45 43.91 +18 09 34.2                WEK049T14
     K17E53F &C2018 05 05.06031009 56 27.87 -02 00 55.8                WEK049W84
     K17E53F &C2018 05 05.06214009 56 27.87 -02 00 55.6                WEK049W84
     K17E53F &C2018 05 07.03597109 56 26.97 -02 00 25.3                WEK049W84
     K17E53F &C2018 05 07.03769409 56 26.99 -02 00 25.3                WEK049W84
     K17E53F &C2018 12 13.24963710 10 30.94 -03 56 17.6                WEK049W84

Observer details:
T14 Canada-France-Hawaii Telescope, Maunakea.  Observer S. Sheppard.  Measurer
    S. Deen.  3.58-m Canada-France-Hawaii Telescope + CCD.
W84 Cerro Tololo-DECam.  Observers F. Forster, M. Munoz, S. Gontcho A Gontcho.
    Measurer S. Deen.  4.0-m reflector + CCD.

Orbital elements:
2017 EF53                                                                       
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 359.07791              (2000.0)            P               Q                  
n   0.00138849     Peri.  222.21264     -0.91650421     -0.05659026             
a  79.5744081      Node   309.85095     +0.32114465     -0.69432522             
e   0.5348429      Incl.   31.05226     -0.23850817     -0.71743295             
P 710              H    7.51          G   0.15           U   5                  
Residuals in seconds of arc
030226 T14  0.1+  0.0     170126 T09  0.1-  0.0     170306 T09  0.1-  0.2-
030226 T14  0.2-  0.0     170202 T09  0.1-  0.0     170322 T09  0.0   0.2-
030226 T14  0.1+  0.0     170202 T09  0.1-  0.0     170322 T09  0.1+  0.0
170126 T09  0.1+  0.0     170202 T09  0.0   0.0     170322 T09  0.1+  0.2+
170126 T09  0.1-  0.1-    170202 T09  0.1+  0.0     180505 W84  0.0   0.0
170126 T09  0.2+  0.1-    170306 T09  0.1-  0.0     180505 W84  0.0   0.1+
170126 T09  0.1+  0.2+    170306 T09  0.2+  0.0     180507 W84  0.2-  0.1-
170126 T09  0.0   0.0     170306 T09  0.3-  0.0     180507 W84  0.1+  0.1-
170126 T09  0.2+  0.1+    170306 T09  0.1+  0.2+    181213 W84  0.1-  0.1-

Ephemeris:
2017 EF53                a,e,i = 79.57, 0.53, 31                 q = 37.0146
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 23    10 28 12.9 -11 03 51  36.4181 37.0383   127.5     1.2    23.3
...
2024 05 08    10 27 46.7 -10 56 20  36.6171 37.0372   113.9     1.4    23.4
...
2024 05 16    10 27 41.7 -10 52 52  36.7350 37.0367   106.6     1.5    23.4
...
2024 05 22    10 27 42.2 -10 50 36  36.8271 37.0362   101.2     1.5    23.4
2024 05 23    10 27 42.7 -10 50 15  36.8426 37.0362   100.3     1.5    23.4
2024 05 24    10 27 43.2 -10 49 55  36.8582 37.0361    99.3     1.5    23.4
...
2024 05 30    10 27 48.6 -10 48 04  36.9527 37.0357    93.9     1.6    23.4
...
2024 06 07    10 28 01.4 -10 46 11  37.0797 37.0351    86.7     1.6    23.4
...
2024 06 22    10 28 41.9 -10 44 33  37.3133 37.0341    73.3     1.5    23.4

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-K49