[Iaude] MPEC E15: 2018 DE4 [a=32.36,e=0.93,i=81.3,H=17.3]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Mar 4 13:01:17 EST 2018


M.P.E.C. 2018-E15                                Issued 2018 Mar. 4, 17:58 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 DE4
 
Observations:
     K18D04E  C2018 01 12.62080 11 27 35.260-02 35 49.98         22.5 wUEE015F51
     K18D04E  C2018 01 12.63402 11 27 35.249-02 35 32.26         22.4 wUEE015F51
     K18D04E  C2018 01 12.64720 11 27 35.246-02 35 14.42         21.9 wUEE015F51
     K18D04E  C2018 01 12.66038 11 27 35.230-02 34 56.41         22.0 wUEE015F51
     K18D04E* C2018 02 17.43201 11 08 53.56 +17 56 17.8          20.9 GUEE015G96
     K18D04E  C2018 02 17.43775 11 08 53.20 +17 56 33.1          20.8 GUEE015G96
     K18D04E  C2018 02 17.44349 11 08 52.82 +17 56 48.4          20.8 GUEE015G96
     K18D04E  C2018 02 17.44923 11 08 52.41 +17 57 03.7          20.5 GUEE015G96
     K18D04E  C2018 02 17.48328 11 08 50.11 +17 58 34.2          20.3 GUEE015G96
     K18D04E  C2018 02 17.48404 11 08 50.09 +17 58 35.7          20.3 GUEE015G96
     K18D04E  C2018 02 17.48593 11 08 49.96 +17 58 41.5          20.8 GUEE015G96
     K18D04E  C2018 02 17.48668 11 08 49.90 +17 58 42.9          20.3 GUEE015G96
     K18D04E KC2018 02 18.24521 11 08 00.24 +18 32 25.0          20.3 RqEE015734
     K18D04E KC2018 02 18.25783 11 07 59.39 +18 32 58.7          20.2 RqEE015734
     K18D04E KC2018 02 18.27055 11 07 58.54 +18 33 32.8          19.6 RqEE015734
     K18D04E KC2018 02 18.29529 11 07 56.80 +18 34 38.6          19.7 RqEE015734
     K18D04E KC2018 02 18.33277611 07 54.19 +18 36 19.0          20.5 VuEE015H21
     K18D04E KC2018 02 18.33678311 07 53.93 +18 36 29.6          20.6 VuEE015H21
     K18D04E KC2018 02 18.34324711 07 53.48 +18 36 46.7          20.7 VuEE015H21
     K18D04E  C2018 02 18.49027 11 07 43.44 +18 43 20.4          20.5 GUEE015G96
     K18D04E  C2018 02 18.49276 11 07 43.29 +18 43 27.2          21.1 GUEE015G96
     K18D04E  C2018 02 18.49490 11 07 43.15 +18 43 31.1          19.8 GUEE015G96
     K18D04E  C2018 02 19.90607 11 06 07.21 +19 46 35.7          20.3 VSEE015033
     K18D04E  C2018 02 19.90982 11 06 06.96 +19 46 45.8          20.2 VSEE015033
     K18D04E  C2018 02 19.91358 11 06 06.68 +19 46 55.8          20.0 VSEE015033
     K18D04E  C2018 02 19.91733 11 06 06.41 +19 47 06.0          20.3 VSEE015033
     K18D04E  C2018 02 19.99764 11 06 00.71 +19 50 42.2          20.3 VSEE015033
     K18D04E  C2018 02 20.00139 11 06 00.44 +19 50 52.2          20.3 VSEE015033
     K18D04E  C2018 02 20.00515 11 06 00.18 +19 51 02.4          20.2 VSEE015033
     K18D04E  C2018 02 20.00890 11 05 59.91 +19 51 12.6          20.0 VSEE015033
     K18D04E KC2018 02 20.09012 11 05 54.14 +19 54 51.1          20.6 VSEE015L01
     K18D04E KC2018 02 20.09264 11 05 53.95 +19 54 57.0          20.9 VSEE015L01
     K18D04E KC2018 02 20.09515 11 05 53.75 +19 55 04.8          20.8 VSEE015L01
     K18D04E  C2018 02 21.12204 11 04 41.19 +20 41 10.8          20.1 VSEE015033
     K18D04E  C2018 02 21.12579 11 04 40.91 +20 41 20.8          20.0 VSEE015033
     K18D04E  C2018 02 21.12954 11 04 40.63 +20 41 30.9          20.5 VSEE015033
     K18D04E  C2018 02 21.13330 11 04 40.36 +20 41 41.2          20.2 VSEE015033
     K18D04E |C2018 02 21.36919 11 04 23.56 +20 52 18.9                vEE015H06
     K18D04E |C2018 02 21.37311 11 04 23.29 +20 52 29.5          19.4 wvEE015H06
     K18D04E KC2018 02 22.49548 11 03 01.42 +21 43 00.8          20.5 RoEE015291
     K18D04E KC2018 02 22.49848 11 03 01.20 +21 43 08.6          20.3 RoEE015291
     K18D04E KC2018 02 22.50148 11 03 00.98 +21 43 16.5          20.4 RoEE015291
     K18D04E  C2018 02 25.24043 10 59 34.19 +23 46 32.2          21.4 GUEE015I52
     K18D04E  C2018 02 25.24179 10 59 34.08 +23 46 35.9          21.1 GUEE015I52
     K18D04E  C2018 02 25.24303 10 59 33.96 +23 46 38.7          22.1 GUEE015I52
     K18D04E  C2018 02 25.24588 10 59 33.77 +23 46 47.4          20.4 GUEE015I52
     K18D04E  C2018 02 25.78251 10 58 51.98 +24 10 49.5          21.1 VSEE015033
     K18D04E  C2018 02 25.78787 10 58 51.56 +24 11 04.2          21.2 VSEE015033
     K18D04E  C2018 02 26.20802 10 58 18.52 +24 29 56.0          20.9 GUEE015G96
     K18D04E  C2018 02 26.21327 10 58 18.06 +24 30 09.3          21.1 GUEE015G96
     K18D04E  C2018 02 26.21854 10 58 17.66 +24 30 24.3          20.5 GUEE015G96
     K18D04E  C2018 02 26.22379 10 58 17.22 +24 30 38.5          20.2 GUEE015G96
     K18D04E  C2018 02 26.27279 10 58 13.27 +24 32 50.5          19.7 GUEE015I52
     K18D04E  C2018 02 26.27507 10 58 13.08 +24 32 56.9          20.4 GUEE015I52
     K18D04E  C2018 02 26.27736 10 58 12.87 +24 33 02.5          20.2 GUEE015I52
     K18D04E  C2018 02 26.27964 10 58 12.69 +24 33 08.7          20.6 GUEE015I52
 
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers U. Laux,
    B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
291 LPL/Spacewatch II.  Observer R. S. McMillan.  1.8-m f/2.7 reflector + CCD.
734 Farpoint Observatory.  Observer G. Hug.  0.69-m reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
    M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk.  1.8-m
    Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observers D. C. Fuls, 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.
H06 iTelescope Observatory, Mayhill.  Observer H. Sato.  0.43-m f/6.8
    astrograph + CCD + f/4.5 focal reducer.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.61-m f/4.5
    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.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
 
Orbital elements:
2018 DE4
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 359.80088              (2000.0)            P               Q
n   0.00535522     Peri.   32.51027     -0.79902350     +0.43397342
a  32.3557409      Node   155.10108     +0.04697767     -0.64500979
e   0.9261689      Incl.   81.32966     +0.59946187     +0.62899082
P 184.05           H   17.3           G   0.15           U   3
Residuals in seconds of arc
180112 F51  0.1-  0.1+    180218 G96  0.5-  0.4+    180221 H06  0.2+  0.5-
180112 F51  0.1-  0.1-    180218 G96  0.2-  0.6+    180222 291  0.1+  0.5+
180112 F51  0.1+  0.1-    180218 G96  0.1-  1.2-    180222 291  0.2+  0.2+
180112 F51  0.1+  0.0     180219 033  0.1-  0.1+    180222 291  0.3+  0.0
180217 G96  0.2-  0.1-    180219 033  0.1+  0.1+    180225 I52  0.0   0.0
180217 G96  0.1+  0.1-    180219 033  0.1-  0.0     180225 I52  0.0   0.0
180217 G96  0.2+  0.0     180219 033  0.1-  0.1+    180225 I52  0.3-  0.5-
180217 G96  0.1-  0.0     180219 033  0.0   0.1+    180225 I52  0.2+  0.5+
180217 G96  0.4-  0.2+    180220 033  0.1-  0.0     180225 033  0.1+  0.1+
180217 G96  0.0   0.4-    180220 033  0.0   0.1+    180225 033  0.1+  0.3+
180217 G96  0.0   0.4+    180220 033  0.0   0.2+    180226 G96  0.2+  0.1+
180217 G96  0.2-  0.2-    180220 L01  0.6+  0.1-    180226 G96  0.3-  0.8-
180218 734  0.1-  0.2+    180220 L01  0.4+  1.0-    180226 G96  0.0   0.0
180218 734  0.1+  0.2+    180220 L01  0.1+  0.0     180226 G96  0.2-  0.1+
180218 734  0.4+  0.2+    180221 033  0.1+  0.1+    180226 I52  0.0   0.1+
180218 734  0.2-  0.1-    180221 033  0.0   0.0     180226 I52  0.0   0.3+
180218 H21  0.1-  0.2+    180221 033  0.1-  0.0     180226 I52  0.4-  0.2-
180218 H21  0.1+  0.1+    180221 033  0.1-  0.2+    180226 I52  0.3-  0.2-
180218 H21  0.0   0.0     180221 H06  0.1-  0.6-

Ephemeris:
2018 DE4                 a,e,i = 32.36, 0.93, 81                 q = 2.3889
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 02    11 21 53.6 +07 24 08   1.6926  2.5589   144.4    13.0    21.2
...
2018 02 17    11 09 21.8 +17 37 10   1.5463  2.5066   162.6     6.8    20.8
...
2018 02 25    10 59 52.7 +23 35 43   1.5153  2.4822   164.2     6.3    20.7
...
2018 03 03    10 51 46.5 +28 01 56   1.5147  2.4657   159.0     8.3    20.7
2018 03 04    10 50 21.7 +28 45 17   1.5164  2.4631   157.8     8.7    20.8
2018 03 05    10 48 56.0 +29 28 13   1.5187  2.4605   156.6     9.2    20.8
...
2018 03 11    10 40 09.0 +33 35 10   1.5426  2.4460   148.6    12.2    20.9
...
2018 03 19    10 28 20.6 +38 27 56   1.5995  2.4291   137.6    16.0    21.1
...
2018 04 03    10 08 52.7 +45 25 24   1.7641  2.4053   118.3    21.5    21.5

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-E15



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