[Iaude] MPEC D87: 2018 DF2 [a=1.22,e=0.38,i=16.9,H=21.0]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Tue Feb 27 10:53:17 EST 2018


M.P.E.C. 2018-D87                                Issued 2018 Feb. 27, 15:50 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 DF2
 
Observations:
     K18D02F* C2018 02 25.40426 14 02 41.01 +07 05 15.3          21.5 GUED087G96
     K18D02F  C2018 02 25.40953 14 02 42.01 +07 05 29.5          20.6 GUED087G96
     K18D02F  C2018 02 25.41479 14 02 43.03 +07 05 43.2          21.3 GUED087G96
     K18D02F  C2018 02 25.42005 14 02 44.10 +07 05 58.1          21.0 GUED087G96
     K18D02F  C2018 02 25.45088 14 02 50.25 +07 07 19.4          20.7 GUED087G96
     K18D02F  C2018 02 25.45655 14 02 51.40 +07 07 34.3          20.4 GUED087G96
     K18D02F  C2018 02 25.46253 14 02 52.57 +07 07 50.6          20.7 GUED087G96
     K18D02F  C2018 02 25.46851 14 02 53.78 +07 08 06.5          20.8 GUED087G96
     K18D02F  C2018 02 25.51253 14 03 02.55 +07 10 04.2          19.8 GUED087I52
     K18D02F  C2018 02 25.51916 14 03 03.77 +07 10 19.7                UED087I52
     K18D02F  C2018 02 25.52248 14 03 04.48 +07 10 30.0          20.9 GUED087I52
     K18D02F pC2018 02 26.16461 14 05 19.28 +07 39 24.3          20.2 VSED087L01
     K18D02F pC2018 02 26.17450 14 05 21.29 +07 39 51.8          19.9 VSED087L01
     K18D02F  C2018 02 26.19483 14 05 25.56 +07 40 46.2          20.7 VSED087033
     K18D02F  C2018 02 26.19858 14 05 26.33 +07 40 56.3          20.2 VSED087033
     K18D02F  C2018 02 26.20234 14 05 27.08 +07 41 07.2          20.6 VSED087033
     K18D02F  C2018 02 26.49488 14 06 29.52 +07 54 44.6          20.3 GUED087I52
     K18D02F  C2018 02 26.49737 14 06 30.05 +07 54 51.7          20.0 GUED087I52
     K18D02F  C2018 02 26.49986 14 06 30.57 +07 54 58.7          20.2 GUED087I52
     K18D02F  C2018 02 26.50234 14 06 31.06 +07 55 05.7          20.5 GUED087I52
     K18D02F  C2018 02 27.40990 14 09 48.49 +08 38 14.0          20.7 GUED087I52
     K18D02F  C2018 02 27.41103 14 09 48.73 +08 38 17.6          20.6 GUED087I52
     K18D02F  C2018 02 27.41218 14 09 48.98 +08 38 21.0          20.0 GUED087I52
     K18D02F  C2018 02 27.41328 14 09 49.21 +08 38 24.4          20.8 GUED087I52
 
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers U. Laux,
    B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers E. J. Christensen,
    D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
    S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
    1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
    Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
    R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
 
Orbital elements:
2018 DF2                                                 Earth MOID = 0.1399 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 307.73865              (2000.0)            P               Q
n   0.72710529     Peri.  133.74467     +0.26973673     +0.95257933
a   1.2248169      Node   151.00696     -0.94572536     +0.28959448
e   0.3849309      Incl.   16.89153     -0.18123367     -0.09342197
P   1.36           H   21.0           G   0.15           U   9
Residuals in seconds of arc
180225 G96  0.5+  0.1-    180225 I52  0.6+  0.7+    180226 I52  0.3-  0.1-
180225 G96  0.2-  0.1+    180225 I52  0.9-  1.4-    180226 I52  0.0   0.0
180225 G96  0.6-  0.2-    180225 I52  0.2-  0.0     180226 I52  0.1+  0.1+
180225 G96  0.3-  0.7+    180226 L01  0.3+  0.5-    180226 I52  0.2-  0.2+
180225 G96  0.1+  0.0     180226 L01  0.1+  0.2-    180227 I52  0.1-  0.3-
180225 G96  0.4+  0.2-    180226 033  0.2+  0.2+    180227 I52  0.0   0.0
180225 G96  0.1+  0.2+    180226 033  0.2+  0.0     180227 I52  0.1+  0.0
180225 G96  0.5+  0.2+    180226 033  0.2-  0.5+    180227 I52  0.0   0.2+

Ephemeris:
2018 DF2                 a,e,i = 1.22, 0.38, 17                  q = 0.7533
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 01 28    12 48 22.4 -03 44 28   0.6624  1.4013   115.2    39.5    22.4
...
2018 02 12    13 23 11.0 -00 06 50   0.4936  1.3243   123.3    38.5    21.6
...
2018 02 20    13 45 18.6 +03 35 03   0.4137  1.2799   126.7    38.2    21.2
...
2018 02 26    14 04 44.7 +07 32 07   0.3601  1.2452   128.2    38.7    20.8
2018 02 27    14 08 18.4 +08 18 40   0.3517  1.2393   128.3    38.9    20.7
2018 02 28    14 11 58.6 +09 07 24   0.3436  1.2334   128.3    39.1    20.7
...
2018 03 06    14 36 43.6 +14 48 57   0.2991  1.1972   127.3    41.2    20.4
...
2018 03 14    15 19 48.7 +24 38 34   0.2536  1.1475   121.6    47.6    20.1
...
2018 03 29    17 33 26.1 +44 47 54   0.2231  1.0513    97.6    70.3    20.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-D87



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