[Iaude] MPEC D63: 2018 DH1 [a=2.07,e=0.60,i=2.0,H=21.0,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Feb 25 11:29:16 EST 2018


M.P.E.C. 2018-D63                                Issued 2018 Feb. 25, 16:26 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 DH1
 
Observations:
     K18D01H* C2018 02 22.73309 11 26 18.31 +05 23 48.6          19.6 RqED063D29
     K18D01H  C2018 02 22.74900 11 26 18.71 +05 23 54.2          20.0 RqED063D29
     K18D01H  C2018 02 22.76491 11 26 19.13 +05 24 00.2          20.2 RqED063D29
     K18D01H |C2018 02 23.13909 11 26 33.63 +05 26 45.4          19.6 GUED063807
     K18D01H |C2018 02 23.14129 11 26 33.66 +05 26 46.3          19.5 GUED063807
     K18D01H |C2018 02 23.14348 11 26 33.73 +05 26 47.5          19.5 GUED063807
     K18D01H HC2018 02 23.20840 11 26 36.35 +05 26 40.3          19.7 RoED063691
     K18D01H HC2018 02 23.21221 11 26 36.48 +05 26 41.8          19.6 RoED063691
     K18D01H HC2018 02 23.21603 11 26 36.57 +05 26 43.0          19.5 RoED063691
     K18D01H  C2018 02 23.25393 11 26 37.58 +05 26 57.0          19.0 GUED063I52
     K18D01H  C2018 02 23.26114 11 26 37.77 +05 27 00.0          18.9 GUED063I52
     K18D01H  C2018 02 23.26717 11 26 37.92 +05 27 02.4          19.0 GUED063I52
     K18D01H  C2018 02 23.27482 11 26 38.08 +05 27 04.7          19.2 GUED063I52
     K18D01H  C2018 02 23.94466 11 27 01.31 +05 31 14.9          18.5 VSED063033
     K18D01H  C2018 02 23.94656 11 27 01.36 +05 31 15.6          18.2 VSED063033
     K18D01H  C2018 02 23.94846 11 27 01.42 +05 31 16.5          18.3 VSED063033
     K18D01H  C2018 02 24.06235 11 27 04.51 +05 32 02.1          19.6 VSED063033
     K18D01H  C2018 02 24.06425 11 27 04.56 +05 32 03.1          19.8 VSED063033
     K18D01H |C2018 02 24.17066 11 27 09.56 +05 33 25.0          19.4 GUED063807
     K18D01H |C2018 02 24.17403 11 27 09.64 +05 33 26.6          19.4 GUED063807
     K18D01H |C2018 02 24.17725 11 27 09.73 +05 33 28.0          19.3 GUED063807
     K18D01H  C2018 02 24.89059 11 27 35.39 +05 37 46.3          19.5 VSED063033
     K18D01H  C2018 02 24.89191 11 27 35.42 +05 37 46.8          19.2 VSED063033
     K18D01H  C2018 02 24.89324 11 27 35.46 +05 37 47.4          19.0 VSED063033
     K18D01H KC2018 02 25.02057 11 27 39.01 +05 38 46.1          19.2 VSED063L01
     K18D01H KC2018 02 25.02784 11 27 39.20 +05 38 48.7          19.4 VSED063L01
     K18D01H KC2018 02 25.03113 11 27 39.29 +05 38 50.0          19.3 VSED063L01
     K18D01H KC2018 02 25.03443 11 27 39.39 +05 38 51.3          19.3 VSED063L01
     K18D01H KC2018 02 25.07008 11 27 40.21 +05 39 06.4          19.3 RoED063K88
     K18D01H KC2018 02 25.07822 11 27 40.40 +05 39 10.2          19.6 RoED063K88
 
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers U. Laux,
    B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
691 Steward Observatory, Kitt Peak.  Observer R. S. McMillan.  0.9-m f/3
    reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD.
D29 Purple Mountain Observatory, XuYi Station.  Observers H. B. Zhao, B. Li,
    G. Zhaori, R. Q. Hong, L. F. Hu.  Measurers H. B. Zhao, B. Li, H. Lu,
    G. Zhaori.  1.04-m f/1.8 Schmidt + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  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.
K88 GINOP-KHK, Piszkesteto.  Observers R. Konyves-Toth, J. Vinko.  Measurer
    K. Sarneczky.  0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
 
Orbital elements:
2018 DH1                                            PHA, Earth MOID = 0.0148 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 345.54160              (2000.0)            P               Q
n   0.33023406     Peri.   96.70362     -0.44959130     +0.89303110
a   2.0729467      Node   146.55792     -0.83258091     -0.41124009
e   0.5968346      Incl.    1.98157     -0.32353776     -0.18269384
P   2.98           H   21.0           G   0.15           U   8
Residuals in seconds of arc
180222 D29  0.6-  0.0     180223 I52  0.1+  0.0     180224 807  0.3+  0.3-
180222 D29  0.3-  0.0     180223 I52  0.0   0.1+    180224 033  0.2+  0.0
180222 D29  0.2+  0.4+    180223 I52  0.5-  0.5-    180224 033  0.0   0.0
180223 807  0.0   0.3-    180223 033  0.0   0.1-    180224 033  0.0   0.0
180223 807  0.4-  0.2-    180223 033  0.0   0.2-    180225 L01  0.1+  0.4+
180223 807  0.2-  0.2+    180223 033  0.1+  0.0     180225 L01  0.0   0.1-
180223 691  0.1+  0.2+    180224 033  0.2-  0.1+    180225 L01  0.0   0.3-
180223 691  0.5+  0.3+    180224 033  0.2-  0.3+    180225 L01  0.2+  0.4-
180223 691  0.2+  0.0     180224 807  0.2+  0.6-    180225 K88  0.2-  0.4+
180223 I52  0.1+  0.3-    180224 807  0.1+  0.4-    180225 K88  0.7-  0.7+

Ephemeris:
2018 DH1                 a,e,i = 2.07, 0.60, 2                   q = 0.8357
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 01 26    11 08 09.5 +05 04 57   0.6322  1.5223   139.6    24.8    22.1
...
2018 02 10    11 18 53.5 +04 45 42   0.4390  1.3904   152.3    19.3    20.9
...
2018 02 18    11 23 37.3 +05 01 50   0.3477  1.3194   159.3    15.3    20.2
...
2018 02 24    11 27 02.7 +05 31 59   0.2844  1.2661   164.7    11.9    19.5
2018 02 25    11 27 38.3 +05 38 57   0.2743  1.2573   165.6    11.3    19.4
2018 02 26    11 28 14.9 +05 46 34   0.2642  1.2485   166.5    10.7    19.3
...
2018 03 04    11 32 27.3 +06 49 27   0.2063  1.1958   171.4     7.1    18.5
...
2018 03 12    11 41 46.5 +09 33 07   0.1343  1.1270   173.0     6.2    17.4
...
2018 03 27    15 58 36.8 +47 56 35   0.02442 1.0068   111.2    67.5    15.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-D63



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