[Iaude] MPEC P77: 2017 FK91 [a=2.53,e=0.72,i=12.7,H=20.92]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Tue Aug 6 10:10:23 EDT 2024


M.P.E.C. 2024-P77                                Issued 2024 August 6, 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 FK91                                    


                           Revision to MPEC 2017-F152                           

Additional Observations:
     K17F91K  C2020 08 12.38157421 47 51.794-12 53 28.88         23.27GVEP077F51
     K17F91K  C2020 08 12.40226521 47 49.895-12 53 33.26         23.90GVEP077F51
     K17F91K  C2020 08 12.41259421 47 48.908-12 53 34.79         23.99GVEP077F51
     K17F91K  C2020 08 17.36293821 39 56.165-13 10 02.84         23.09GVEP077F51
     K17F91K  C2020 08 17.37550621 39 54.832-13 10 05.25         22.32GVEP077F51
     K17F91K  C2020 08 17.38811721 39 53.553-13 10 08.27         23.17GVEP077F51
     K17F91K 0C2024 08 01.47098521 48 09.529-14 30 08.89         24.61GVEP077T14
     K17F91K 0C2024 08 01.47635921 48 09.106-14 30 09.93         24.66GVEP077T14
     K17F91K 0C2024 08 02.48782321 46 50.904-14 33 23.86         24.37GVEP077T14
     K17F91K 0C2024 08 02.49319721 46 50.476-14 33 24.89         24.59GVEP077T14
     K17F91K 0C2024 08 02.49857021 46 50.044-14 33 25.90         24.60GVEP077T14

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea.  Observers J. Silva, A. Acohido.
    Measurer D. J. Tholen.  3.6-m f/4.1 reflector + 1024 x 2306 pixels
    Megacam.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
200812 F51 0.02+ 0.02+    240802 T14 0.04+ 0.02+    MPO740797   +0.15 days

Orbital elements:
2017 FK91                                                Earth MOID = 0.0913 AU
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5                 Veres                   
M 328.79391              (2000.0)            P               Q                  
n   0.24432245     Peri.  134.19294     -0.11297214     -0.98423557             
a   2.5341197      Node   321.66926     +0.83753200     -0.02064404             
e   0.7249285      Incl.   12.67452     +0.53458157     -0.17565356             
P   4.03           H   20.92          G   0.15           U   1                  
Residuals in seconds of arc
170304 C51  0.2+  0.4-    170328 474  0.1-  0.2+    170419 807  0.2-  0.0
170304 C51  0.1-  0.3+    170328 474  0.3-  0.1+    170419 474  0.5+  0.2+
170323 F51  0.0   0.1+    170329 474  0.1+  0.1+    170419 474  0.3+  0.2-
170323 F51  0.1-  0.1+    170329 474  0.2+  0.2+    170427 807  0.0   0.6-
170323 F51  0.1-  0.1+    170329 474  0.2+  0.2+    170427 807  0.0   0.3-
170323 F51  0.0   0.1+    170329 474  0.2+  0.2+    170427 807  0.1+  0.6-
170323 K92  0.1-  0.1+    170404 807  0.2-  0.6-    200812 F51  0.4-  0.1+
170323 K92  0.2+  0.0     170404 807  0.5+  0.1-    200812 F51  0.4+  0.1-
170323 K92  0.1+  0.2-    170404 807  0.1+  0.0     200812 F51  0.2+  0.4+
170323 K92  0.0   0.1+    170404 F51  0.0   0.1-    200817 F51  0.7+  0.1+
170325 807  0.1+  0.1+    170404 F51  0.0   0.0     200817 F51  0.2-  0.3+
170325 807  0.1+  0.2-    170404 F51  0.1-  0.0     200817 F51  0.2-  0.2-
170325 807  0.3+  0.2-    170404 F51  0.1-  0.2-    240801 T14  0.0   0.1+
170327 807  0.5-  0.0     170404 F51  0.0   0.1+    240801 T14  0.0   0.1+
170327 807  0.0   0.3-    170404 F51  0.2+  0.1+    240802 T14  0.1+  0.0
170327 807  0.0   0.6-    170404 F51  0.2+  0.1-    240802 T14  0.1+  0.0
170328 474  0.1-  0.0     170419 807  0.2-  0.2-    240802 T14  0.1+  0.1+
170328 474  0.0   0.0     170419 807  0.2+  0.0

Ephemeris:
2017 FK91                a,e,i = 2.53, 0.72, 13                  q = 0.6971
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 07 07    22 10 26.0 -13 38 14   1.9518  2.7684   135.3    15.0    25.4
...
2024 07 22    21 59 49.1 -14 01 03   1.7182  2.6592   152.1    10.3    24.9
...
2024 07 30    21 51 13.0 -14 22 28   1.6147  2.5988   161.9     7.0    24.6
...
2024 08 05    21 43 29.5 -14 41 36   1.5485  2.5526   169.5     4.2    24.3
2024 08 06    21 42 06.5 -14 44 58   1.5384  2.5448   170.8     3.7    24.2
2024 08 07    21 40 42.0 -14 48 21   1.5287  2.5370   172.1     3.2    24.2
...
2024 08 13    21 31 46.9 -15 09 07   1.4765  2.4896   179.5     0.2    23.8
...
2024 08 21    21 18 59.7 -15 36 04   1.4239  2.4251   169.2     4.5    24.0
...
2024 09 05    20 54 49.1 -16 14 48   1.3761  2.2996   149.0    13.1    24.2

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-P77





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