• MPC Preparation (Info)

    • MPEC 2018-E07 : 2018 DW3

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    M.P.E.C. 2018-E07                                Issued 2018 Mar. 4, 17:21 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2018 DW3

Observations:
     K18D03W* C2018 02 25.29000 12 05 57.50 +09 23 25.7          21.3 GUEE007G96
     K18D03W  C2018 02 25.29521 12 05 57.13 +09 23 28.4          21.2 GUEE007G96
     K18D03W  C2018 02 25.30040 12 05 56.73 +09 23 31.4          21.0 GUEE007G96
     K18D03W  C2018 02 25.30560 12 05 56.35 +09 23 35.2          20.9 GUEE007G96
     K18D03W  C2018 02 25.43661 12 05 46.41 +09 24 52.3          21.5 GUEE007I52
     K18D03W  C2018 02 25.44161 12 05 46.03 +09 24 55.3          21.9 GUEE007I52
     K18D03W  C2018 02 25.45159 12 05 45.24 +09 25 01.3          21.7 GUEE007I52
     K18D03W |C2018 02 26.24161 12 04 47.91 +09 32 52.8          20.9 GUEE007807
     K18D03W |C2018 02 26.24729 12 04 47.48 +09 32 56.1          21.0 GUEE007807
     K18D03W |C2018 02 26.25376 12 04 46.98 +09 33 00.0          21.0 GUEE007807
     K18D03W  C2018 02 26.46544 12 04 31.13 +09 34 56.2          20.6 GUEE007I52
     K18D03W  C2018 02 26.47281 12 04 30.62 +09 35 00.2          20.9 GUEE007I52
     K18D03W  C2018 02 26.47943 12 04 30.13 +09 35 04.3          20.6 GUEE007I52
     K18D03W  C2018 02 26.48358 12 04 29.79 +09 35 06.8          21.1 GUEE007I52
     K18D03W  C2018 02 27.24044 12 03 34.56 +09 42 27.8          21.3 GUEE007G96
     K18D03W  C2018 02 27.24580 12 03 34.10 +09 42 31.0          21.1 GUEE007G96
     K18D03W  C2018 02 27.25686 12 03 33.25 +09 42 37.2          20.4 GUEE007G96
     K18D03W KC2018 02 27.31776812 03 28.41 +09 43 12.1          21.5 VuEE007H21
     K18D03W KC2018 02 27.32861312 03 27.57 +09 43 18.5          21.2 VuEE007H21
     K18D03W KC2018 02 27.34360112 03 26.42 +09 43 27.9          21.1 VuEE007H21
     K18D03W |C2018 03 01.20936 12 01 07.18 +10 01 27.0          21.0 GUEE007807
     K18D03W |C2018 03 01.21679 12 01 06.55 +10 01 31.4          21.0 GUEE007807
     K18D03W |C2018 03 01.22440 12 01 05.95 +10 01 35.9          21.0 GUEE007807

Observer details:
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD, 1.00-m f/10.0 astrograph + 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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + 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.

Orbital elements:
2018 DW3                                                 Earth MOID = 0.1037 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M  34.14048              (2000.0)            P               Q
n   0.19082062     Peri.  322.28184     +0.43354621     -0.89630285
a   2.9880362      Node   101.85235     +0.84820820     +0.37099031
e   0.6404580      Incl.    5.46225     +0.30427050     +0.24291437
P   5.17           H   18.8           G   0.15           U   8
Residuals in seconds of arc
180225 G96  0.2+  0.2+    180226 807  0.2+  0.5-    180227 G96  0.1-  0.1-
180225 G96  0.5+  0.2-    180226 807  0.1+  0.4-    180227 H21  0.3-  0.0
180225 G96  0.4+  0.3-    180226 I52  0.4-  0.0     180227 H21  0.4-  0.2+
180225 G96  0.5+  0.4+    180226 I52  0.3+  0.3-    180227 H21  0.4-  0.9+
180225 I52  0.5-  0.2+    180226 I52  0.5+  0.1-    180301 807  0.5+  0.3-
180225 I52  0.6-  0.2+    180226 I52  0.1+  0.0     180301 807  0.2-  0.1-
180225 I52  1.2-  0.4+    180227 G96  0.8+  0.1+    180301 807  0.3-  0.1+
180226 807  0.1+  0.5-    180227 G96  0.0   0.2+

Ephemeris:
2018 DW3                 a,e,i = 2.99, 0.64, 5                   q = 1.0743
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 02    12 26 50.9 +05 43 14   1.1052  1.8838   128.5    24.2    21.5
...
2018 02 17    12 15 17.8 +08 00 49   1.1066  2.0069   146.7    15.7    21.4
...
2018 02 25    12 06 18.3 +09 20 37   1.1258  2.0718   156.6    10.9    21.3
...
2018 03 03    11 58 51.5 +10 18 07   1.1505  2.1200   163.6     7.6    21.3
2018 03 04    11 57 35.2 +10 27 18   1.1555  2.1280   164.7     7.1    21.3
2018 03 05    11 56 18.8 +10 36 19   1.1608  2.1360   165.8     6.6    21.3
...
2018 03 11    11 48 40.6 +11 26 47   1.1983  2.1837   170.2     4.4    21.3
...
2018 03 19    11 38 58.6 +12 22 02   1.2636  2.2466   167.9     5.3    21.5
...
2018 04 03    11 24 24.9 +13 21 51   1.4311  2.3624   152.3    11.3    22.1

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-E07

    Read MPEC 2018-E06 Read MPEC 2018-E08

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