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    • MPEC 2015-D80 : 2015 DE198

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    M.P.E.C. 2015-D80                                Issued 2015 Feb. 25, 14:25 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                  2015 DE198

Observations:
     K15DJ8E* C2015 02 22.29702 08 50 11.773+43 16 15.90         20.7 wLED080F51
     K15DJ8E  C2015 02 22.30825 08 50 10.118+43 16 18.02         20.6 wLED080F51
     K15DJ8E  C2015 02 22.33073 08 50 06.768+43 16 21.83         20.5 wLED080F51
     K15DJ8E  C2015 02 22.77809 08 49 03.43 +43 17 27.6          20.1 VMED080033
     K15DJ8E  C2015 02 22.78038 08 49 03.10 +43 17 28.0          20.3 VMED080033
     K15DJ8E  C2015 02 22.78269 08 49 02.78 +43 17 28.3          20.2 VMED080033
     K15DJ8E  C2015 02 22.78498 08 49 02.45 +43 17 28.8          20.2 VMED080033
     K15DJ8E  C2015 02 22.83521 08 48 55.14 +43 17 37.2          20.2 VMED080033
     K15DJ8E  C2015 02 22.83981 08 48 54.48 +43 17 37.6          20.2 VMED080033
     K15DJ8E  C2015 02 22.94207 08 48 39.63 +43 17 53.3          20.7 VMED080033
     K15DJ8E  C2015 02 22.94437 08 48 39.26 +43 17 53.6          20.9 VMED080033
     K15DJ8E  C2015 02 22.94668 08 48 38.90 +43 17 54.0          19.3 VMED080033
     K15DJ8E _C2015 02 23.26555408 47 54.509+43 18 42.31         19.7 RtED080568
     K15DJ8E _C2015 02 23.26687508 47 54.313+43 18 42.58         19.8 RtED080568
     K15DJ8E _C2015 02 23.26823608 47 54.120+43 18 42.76         19.7 RtED080568
     K15DJ8E  C2015 02 23.42143 08 47 31.692+43 19 03.65         20.6 wLED080F51
     K15DJ8E  C2015 02 23.44521 08 47 28.213+43 19 06.15         20.7 wLED080F51
     K15DJ8E  C2015 02 23.45710 08 47 26.470+43 19 07.44         20.7 wLED080F51
     K15DJ8E IC2015 02 24.19263708 45 43.34 +43 20 25.4                rED080H21
     K15DJ8E KC2015 02 24.20515308 45 41.61 +43 20 28.0          19.6 VrED080H21
     K15DJ8E KC2015 02 24.20677308 45 41.38 +43 20 27.8          20.0 VrED080H21
     K15DJ8E HC2015 02 25.37652 08 42 58.03 +43 21 52.3          20.7 RoED080291
     K15DJ8E HC2015 02 25.37916 08 42 57.61 +43 21 52.1          20.7 RoED080291
     K15DJ8E HC2015 02 25.38181 08 42 57.26 +43 21 52.5          20.7 RoED080291

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers B. Stecklum,
    C. Hoegner.  Measurer B. Stecklum.  1.34-m f/4 Schmidt + CCD.
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
568 Mauna Kea.  Observers R. J. Wainscoat, L. Wells.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, N. Primak,
    A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau,
    H. Flewelling, M. Huber, E. Magnier, E. Schunova, R. Wainscoat, C. Waters,
    R. Weryk.  1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, T. Lister, T. Vorobjov.  0.61-m
    f/4.0 astrograph + CCD.

Orbital elements:
2015 DE198                                          PHA, Earth MOID = 0.0421 AU
Epoch 2014 Dec. 9.0 TT = JDT 2457000.5                  MPC
M 293.26006              (2000.0)            P               Q
n   0.32962074     Peri.  218.16090     -0.32786654     +0.93753337
a   2.0755173      Node    33.16799     -0.80608014     -0.21339888
e   0.5856582      Incl.   12.27758     -0.49268483     -0.27475825
P   2.99           H   18.5           G   0.15           U   7
Residuals in seconds of arc
150222 F51  0.2+  0.0     150222 033  0.2+  0.3-    150223 F51  0.3+  0.1-
150222 F51  0.2+  0.0     150222 033  0.4+  0.0     150223 F51  0.2+  0.1-
150222 F51  0.2-  0.3-    150222 033  0.0   0.1-    150224 H21  0.7-  1.1-
150222 033  0.4+  0.0     150222 033  0.3-  0.0     150224 H21  0.2+  0.3+
150222 033  0.4+  0.0     150223 568  0.2+  0.0     150224 H21  0.2+  0.0
150222 033  0.5+  0.1-    150223 568  0.1+  0.0     150225 291  0.5+  0.0
150222 033  0.5+  0.0     150223 568  0.2+  0.0     150225 291  0.0   0.2-
150222 033  0.1+  0.0     150223 F51  0.2+  0.0     150225 291  0.2+  0.1+

Ephemeris:
2015 DE198               a,e,i = 2.08, 0.59, 12                  q = 0.8600
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2015 01 26    09 47 22.1 +38 43 05   1.0210  1.9550   154.2    12.6    20.7
...
2015 02 10    09 19 08.7 +41 54 13   0.9090  1.8416   152.5    14.3    20.4
...
2015 02 18    09 00 27.8 +42 57 59   0.8715  1.7790   146.0    18.1    20.4
...
2015 02 24    08 46 10.6 +43 20 06   0.8526  1.7312   139.9    21.6    20.4
2015 02 25    08 43 50.9 +43 21 31   0.8501  1.7231   138.8    22.2    20.4
2015 02 26    08 41 32.8 +43 22 16   0.8479  1.7151   137.7    22.8    20.4
...
2015 03 04    08 28 30.1 +43 13 28   0.8376  1.6662   131.1    26.6    20.4
...
2015 03 12    08 14 01.0 +42 29 26   0.8313  1.6000   122.3    31.7    20.5
...
2015 03 27    07 58 42.0 +39 52 44   0.8321  1.4731   106.9    40.4    20.5

A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-D80

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