[Iaude] MPEC X81: 2018 XD2 [a=1.99,e=0.35,i=5.4,H=22.1]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Dec 12 07:01:16 EST 2018


M.P.E.C. 2018-X81                                Issued 2018 Dec. 12, 11:58 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 XD2
 
Observations:
     K18X02D* C2018 12 09.37007 06 35 26.48 +43 56 29.2          21.6 GVEX081G96
     K18X02D  C2018 12 09.37566 06 35 26.66 +43 56 31.4          21.2 GVEX081G96
     K18X02D  C2018 12 09.38108 06 35 26.83 +43 56 34.2          20.8 GVEX081G96
     K18X02D  C2018 12 09.38635 06 35 26.98 +43 56 37.1          21.3 GVEX081G96
     K18X02D  C2018 12 09.48189 06 35 29.90 +43 57 19.9                VEX081I52
     K18X02D  C2018 12 09.48666 06 35 30.10 +43 57 21.8                VEX081I52
     K18X02D  C2018 12 09.49566 06 35 30.42 +43 57 25.4          20.6 GVEX081I52
     K18X02D  C2018 12 10.22309 06 36 03.32 +44 03 09.8          21.9 GVEX081I52
     K18X02D  C2018 12 10.22963 06 36 03.54 +44 03 13.0          22.0 GVEX081I52
     K18X02D  C2018 12 10.23519 06 36 03.75 +44 03 15.8          21.0 GVEX081I52
     K18X02D  C2018 12 10.24100 06 36 03.89 +44 03 19.3          21.1 GVEX081I52
     K18X02D KC2018 12 11.06690406 36 34.21 +44 09 30.6          21.0 GVEX081L01
     K18X02D KC2018 12 11.07002006 36 34.35 +44 09 31.4          21.1 GVEX081L01
     K18X02D IC2018 12 11.10029206 36 35.17 +44 09 45.0          21.2 GVEX081L01
     K18X02D  C2018 12 12.43383806 37 23.26 +44 19 09.4          20.3 GVEX081H01
     K18X02D  C2018 12 12.44174206 37 23.45 +44 19 12.2          20.4 GVEX081H01
     K18X02D  C2018 12 12.44787506 37 23.59 +44 19 14.3          20.5 GVEX081H01
     K18X02D  C2018 12 12.45484406 37 23.77 +44 19 16.7          20.6 GVEX081H01
 
Observer details:
G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers B. M. Africano,
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
    F. C. Shelly.  1.5-m reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers H. Groeller,
    G. J. Leonard.  Measurers B. M. Africano, E. J. Christensen,
    G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller,
    R. A. Kowalski, S. M. Larson, G. J. Leonard, 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 XD2                                                 Earth MOID = 0.3226 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  41.94908              (2000.0)            P               Q
n   0.35057349     Peri.  100.73747     -0.11599454     -0.99322704
a   1.9919725      Node   355.90549     +0.87046887     -0.09838916
e   0.3532357      Incl.    5.41022     +0.47836097     -0.06180315
P   2.81           H   22.1           G   0.15           U   8
Residuals in seconds of arc
181209 G96  0.1+  0.2+    181209 I52  0.5+  0.1+    181211 L01  0.6+  0.5-
181209 G96  0.3+  0.3-    181210 I52  0.1+  0.3+    181211 L01  0.2+  0.8+
181209 G96  0.4+  0.1-    181210 I52  0.2+  0.1-    181212 H01  0.2+  0.1+
181209 G96  0.3+  0.3+    181210 I52  0.6+  0.2-    181212 H01  0.3+  0.1+
181209 I52  0.2-  0.4+    181210 I52  0.1+  0.2+    181212 H01  0.2+  0.1+
181209 I52  0.3+  0.3+    181211 L01  0.0   0.0     181212 H01  0.3+  0.1+

Ephemeris:
2018 XD2                 a,e,i = 1.99, 0.35, 5                   q = 1.2883
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 12    06 00 12.0 +38 27 48   0.4481  1.3527   137.0    29.9    22.3
...
2018 11 27    06 23 11.9 +41 47 47   0.3822  1.3186   145.1    25.3    21.8
...
2018 12 05    06 31 54.9 +43 16 53   0.3567  1.3053   149.4    22.6    21.5
...
2018 12 11    06 36 32.2 +44 09 02   0.3422  1.2977   152.4    20.6    21.4
2018 12 12    06 37 09.0 +44 16 10   0.3401  1.2967   152.9    20.2    21.3
2018 12 13    06 37 43.4 +44 22 48   0.3382  1.2957   153.4    19.9    21.3
...
2018 12 19    06 40 20.7 +44 51 23   0.3289  1.2911   155.8    18.2    21.2
...
2018 12 27    06 42 08.5 +44 55 53   0.3228  1.2884   158.0    16.6    21.1
...
2019 01 11    06 44 05.8 +43 12 24   0.3308  1.2942   156.9    17.4    21.2

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X81



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