• MPC Preparation (Info)

    • MPEC 2018-X95 : 2018 XR2

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    Read MPEC 2018-X94 Read MPEC 2018-X96 

    M.P.E.C. 2018-X95                                Issued 2018 Dec. 12, 16:10 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 XR2

Observations:
     K18X02R* C2018 12 10.26305 04 38 49.66 +26 54 40.6          20.9 GVEX095G96
     K18X02R  C2018 12 10.26862 04 38 50.70 +26 54 12.2          20.5 GVEX095G96
     K18X02R  C2018 12 10.27419 04 38 51.73 +26 53 43.0          20.1 GVEX095G96
     K18X02R  C2018 12 10.27976 04 38 52.80 +26 53 14.5                VEX095G96
     K18X02R  C2018 12 10.33179704 39 01.79 +26 48 32.4          20.5 GVEX095H01
     K18X02R  C2018 12 10.33506904 39 02.43 +26 48 14.9          20.5 GVEX095H01
     K18X02R  C2018 12 10.34460904 39 04.31 +26 47 23.5          20.3 GVEX095H01
     K18X02R  C2018 12 10.35360104 39 06.09 +26 46 34.9          20.1 GVEX095H01
     K18X02R  C2018 12 10.41064 04 39 18.54 +26 41 33.0          20.6 GVEX095I52
     K18X02R  C2018 12 10.41189 04 39 18.78 +26 41 26.4          20.3 GVEX095I52
     K18X02R  C2018 12 10.41314 04 39 19.08 +26 41 19.8          21.3 GVEX095I52
     K18X02R  C2018 12 10.41439 04 39 19.35 +26 41 12.7          20.1 GVEX095I52
     K18X02R KC2018 12 10.95257104 41 55.80 +25 57 09.2          20.8 GVEX095L01
     K18X02R KC2018 12 10.95408104 41 56.06 +25 57 01.9          20.6 GVEX095L01
     K18X02R KC2018 12 10.95645404 41 56.51 +25 56 50.6          20.6 GVEX095L01
     K18X02R KC2018 12 11.25996504 43 10.89 +25 34 07.8          21.0 VuEX095H21
     K18X02R KC2018 12 11.26511204 43 11.78 +25 33 44.2          20.9 VuEX095H21
     K18X02R KC2018 12 11.27205804 43 12.96 +25 33 12.3          21.0 VuEX095H21
     K18X02R  C2018 12 12.17435 04 46 51.31 +24 30 41.1          20.4 GVEX095I52
     K18X02R  C2018 12 12.17559 04 46 51.46 +24 30 36.5          20.5 GVEX095I52
     K18X02R  C2018 12 12.17684 04 46 51.61 +24 30 32.3          20.3 GVEX095I52

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.
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 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 XR2                                                 Earth MOID = 0.0111 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 158.24919              (2000.0)            P               Q
n   0.81161449     Peri.  111.85403     +0.97201608     -0.23157040
a   1.1382461      Node   261.55281     +0.19808957     +0.89835124
e   0.1837382      Incl.    2.28835     +0.12627455     +0.37328300
P   1.21           H   27.5           G   0.15           U   7
Residuals in seconds of arc
181210 G96  0.1+  0.1+    181210 H01  0.0   0.0     181210 L01  0.3+  0.4-
181210 G96  0.1-  0.2+    181210 I52  0.1+  0.2-    181211 H21  0.9-  0.2+
181210 G96  0.4-  0.3-    181210 I52  0.2-  0.1+    181211 H21  0.2-  0.2+
181210 G96  0.1-  0.0     181210 I52  0.2+  0.4+    181211 H21  0.4+  0.3+
181210 H01  0.1+  0.0     181210 I52  0.2+  0.2+    181212 I52  0.4+  0.0
181210 H01  0.1+  0.0     181210 L01  0.1+  0.2-    181212 I52  0.1+  0.2-
181210 H01  0.1+  0.0     181210 L01  0.0   0.4-    181212 I52  0.3-  0.1+

Ephemeris:
2018 XR2                 a,e,i = 1.14, 0.18, 2                   q = 0.9291
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 12    17 53 22.4 +00 11 01   0.05179 0.9537    44.5   133.3    27.0
...
2018 11 27    19 58 53.0 +38 59 23   0.01398 0.9846    80.4    98.8    21.8
...
2018 12 05    03 49 26.0 +39 12 46   0.02017 1.0045   159.4    20.2    20.0
...
2018 12 11    04 42 09.0 +25 54 53   0.03599 1.0205   172.9     6.9    20.8
2018 12 12    04 46 05.0 +24 43 01   0.03886 1.0232   173.2     6.5    21.0
2018 12 13    04 49 26.5 +23 40 45   0.04177 1.0260   173.1     6.6    21.2
...
2018 12 19    05 02 37.4 +19 36 45   0.06008 1.0430   169.3    10.1    22.1
...
2018 12 27    05 12 18.2 +17 06 27   0.08664 1.0664   162.7    16.0    23.2
...
2019 01 11    05 25 49.6 +15 42 25   0.1444  1.1115   150.6    25.7    24.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X95

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