[Iaude] MPEC Y49: 2018 YU [a=1.76,e=0.47,i=11.2,H=19.9]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Dec 20 12:03:16 EST 2018


M.P.E.C. 2018-Y49                                Issued 2018 Dec. 20, 17:00 UT
 
     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  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


                                    2018 YU
 
Observations:
     K18Y00U* C2018 12 16.52088 09 00 34.478-05 52 52.67         21.3 wUEY049F51
     K18Y00U  C2018 12 16.53327 09 00 35.351-05 53 15.88         21.3 wUEY049F51
     K18Y00U  C2018 12 16.54565 09 00 36.218-05 53 39.12         21.4 wUEY049F51
     K18Y00U  C2018 12 16.55804 09 00 37.098-05 54 02.36         20.8 wUEY049F51
     K18Y00U ^C2018 12 17.52853209 01 50.155-06 24 32.33         21.19GVEY049568
     K18Y00U ^C2018 12 17.52971209 01 50.235-06 24 34.52         21.20GVEY049568
     K18Y00U ^C2018 12 17.53089109 01 50.318-06 24 36.79         21.21GVEY049568
     K18Y00U KC2018 12 19.35414 09 04 06.64 -07 23 27.0                oEY049691
     K18Y00U KC2018 12 19.37921 09 04 08.39 -07 24 16.3                oEY049691
     K18Y00U KC2018 12 19.40421 09 04 10.17 -07 25 05.8                oEY049691
     K18Y00U  C2018 12 19.43100 09 04 11.93 -07 25 58.5                VEY049I52
     K18Y00U  C2018 12 19.43457 09 04 12.21 -07 26 05.3          21.6 GVEY049I52
     K18Y00U  C2018 12 19.43813 09 04 12.47 -07 26 12.2          21.3 GVEY049I52
     K18Y00U  C2018 12 19.44170 09 04 12.73 -07 26 19.8                VEY049I52
     K18Y00U KC2018 12 20.31958 09 05 18.41 -07 55 22.8          20.5 RoEY049691
     K18Y00U KC2018 12 20.33417 09 05 19.44 -07 55 51.9          20.7 RoEY049691
     K18Y00U KC2018 12 20.34875 09 05 20.47 -07 56 22.2                oEY049691
     K18Y00U  C2018 12 20.44368 09 05 27.00 -07 59 32.3          21.3 GVEY049I52
     K18Y00U  C2018 12 20.44535 09 05 27.10 -07 59 35.8          20.9 GVEY049I52
     K18Y00U  C2018 12 20.44702 09 05 27.22 -07 59 39.6          20.4 GVEY049I52
     K18Y00U  C2018 12 20.44868 09 05 27.37 -07 59 42.3          21.1 GVEY049I52
 
Observer details:
568 Mauna Kea.  Observers R. Wainscoat, C. Wipper, A. Petric.  Measurers
    R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch.  Observers R. S. McMillan,
    T. H. Bressi.  0.9-m f/3 reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, J. Fairlamb,
    H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
    R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer B. M. Africano.
    Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
    A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson,
    G. J. Leonard, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
 
Orbital elements:
2018 YU                                                  Earth MOID = 0.0544 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  12.40860              (2000.0)            P               Q
n   0.42220926     Peri.  339.67775     -0.91685368     +0.37657307
a   1.7597496      Node   223.19741     -0.33429207     -0.90568915
e   0.4743728      Incl.   11.16617     -0.21823874     -0.19473032
P   2.33           H   19.9           G   0.15           U   8
Residuals in seconds of arc
181216 F51  0.0   0.1+    181219 691  0.0   0.2-    181220 691  0.1+  0.2+
181216 F51  0.0   0.0     181219 691  0.1-  0.0     181220 691  0.2+  0.5+
181216 F51  0.0   0.0     181219 691  0.5+  0.2-    181220 691  0.3+  0.5-
181216 F51  0.1+  0.1-    181219 I52  0.8-  0.0     181220 I52  0.2-  0.2+
181217 568  0.0   0.1+    181219 I52  0.3-  0.2+    181220 I52  0.4-  0.0
181217 568  0.1-  0.1+    181219 I52  0.1-  0.3+    181220 I52  0.3-  0.4-
181217 568  0.0   0.1+    181219 I52  0.0   0.2-    181220 I52  0.2+  0.2+

Ephemeris:
2018 YU                  a,e,i = 1.76, 0.47, 11                  q = 0.9250
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 20    08 24 26.7 +05 08 30   1.0088  1.6315   109.6    34.8    22.4
...
2018 12 05    08 45 36.2 -00 28 22   0.8065  1.5313   117.0    35.0    21.8
...
2018 12 13    08 56 06.3 -04 06 32   0.7081  1.4764   120.6    35.0    21.4
...
2018 12 19    09 03 39.8 -07 11 42   0.6393  1.4349   122.8    35.2    21.2
2018 12 20    09 04 54.1 -07 44 35   0.6282  1.4279   123.2    35.2    21.1
2018 12 21    09 06 08.1 -08 18 04   0.6173  1.4210   123.5    35.3    21.1
...
2018 12 27    09 13 26.9 -11 52 47   0.5545  1.3791   125.1    35.7    20.8
...
2019 01 04    09 23 07.0 -17 20 30   0.4780  1.3232   126.2    36.8    20.4
...
2019 01 19    09 43 08.1 -30 14 30   0.3585  1.2198   123.7    42.1    19.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Y49



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