[Iaude] MPEC X79: 2018 XB2 [a=1.53,e=0.28,i=19.2,H=21.6]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Dec 12 06:53:16 EST 2018


M.P.E.C. 2018-X79                                Issued 2018 Dec. 12, 11:50 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 XB2
 
Observations:
     K18X02B* C2018 12 09.28043 04 14 19.75 -24 26 16.2          19.3 GVEX079703
     K18X02B  C2018 12 09.28566 04 14 19.37 -24 25 45.0          19.2 GVEX079703
     K18X02B  C2018 12 09.29089 04 14 18.94 -24 25 13.8          19.2 GVEX079703
     K18X02B  C2018 12 09.29612 04 14 18.52 -24 24 42.0          19.1 GVEX079703
     K18X02B  C2018 12 09.32499404 14 15.99 -24 21 49.1          19.4 GVEX079H01
     K18X02B  C2018 12 09.32821604 14 15.74 -24 21 29.8          19.2 GVEX079H01
     K18X02B  C2018 12 09.34324004 14 14.54 -24 19 58.9          19.4 GVEX079H01
     K18X02B  C2018 12 09.34835504 14 14.14 -24 19 27.9          19.0 GVEX079H01
     K18X02B  C2018 12 09.35188 04 14 13.96 -24 19 06.4          19.2 GVEX079I52
     K18X02B  C2018 12 09.35230 04 14 13.95 -24 19 03.8          19.5 GVEX079I52
     K18X02B  C2018 12 09.35271 04 14 13.95 -24 19 01.3          18.9 GVEX079I52
     K18X02B  C2018 12 09.35313 04 14 13.89 -24 18 58.9          19.3 GVEX079I52
     K18X02B KC2018 12 09.49202 04 14 07.92 -24 04 11.9          19.5 VqEX079E23
     K18X02B KC2018 12 09.50244 04 14 07.01 -24 03 09.0          18.9 VqEX079E23
     K18X02B KC2018 12 09.52392 04 14 05.34 -24 00 59.3          19.8 VqEX079E23
     K18X02B  C2018 12 10.16793 04 13 27.27 -22 55 45.3          19.1 GVEX079I52
     K18X02B  C2018 12 10.16811 04 13 27.24 -22 55 44.5          19.2 GVEX079I52
     K18X02B  C2018 12 10.16981 04 13 27.10 -22 55 34.3          19.6 GVEX079I52
     K18X02B  C2018 12 10.16999 04 13 27.15 -22 55 32.6          19.7 GVEX079I52
     K18X02B KC2018 12 10.21797504 13 22.10 -22 50 38.7          19.8 VuEX079H21
     K18X02B KC2018 12 10.21954904 13 21.98 -22 50 28.6          19.2 VuEX079H21
     K18X02B KC2018 12 10.22170204 13 21.78 -22 50 15.4          19.8 VuEX079H21
     K18X02B KC2018 12 10.89519 04 12 41.79 -21 38 40.5          19.1  VEX079104
     K18X02B KC2018 12 10.90115 04 12 41.32 -21 38 01.6          19.4  VEX079104
     K18X02B KC2018 12 10.90711 04 12 40.84 -21 37 22.9          19.3  VEX079104
     K18X02B pC2018 12 10.91788204 12 39.90 -21 36 13.3          19.5 GVEX079L01
     K18X02B KC2018 12 10.91874104 12 39.82 -21 36 07.7          19.4 GVEX079L01
     K18X02B KC2018 12 10.92132004 12 39.58 -21 35 51.1          19.4 GVEX079L01
     K18X02B KC2018 12 10.92369404 12 39.39 -21 35 35.3          19.4 GVEX079L01
     K18X02B pC2018 12 10.92477504 12 39.28 -21 35 28.3          19.3 GVEX079L01
     K18X02B KC2018 12 11.80557 04 11 48.89 -19 57 08.5          19.2 GVEX079L29
     K18X02B KC2018 12 11.80806 04 11 48.66 -19 56 51.8          19.5 GVEX079L29
     K18X02B KC2018 12 11.81055 04 11 48.52 -19 56 34.0          19.1 GVEX079L29
     K18X02B KC2018 12 11.81303 04 11 48.37 -19 56 18.6          18.9 GVEX079L29
     K18X02B KC2018 12 11.94010 04 11 38.69 -19 42 50.3                VEX079204
     K18X02B KC2018 12 11.94414 04 11 38.43 -19 42 22.6          19.1 GVEX079204
     K18X02B KC2018 12 11.94817 04 11 38.11 -19 41 55.2                VEX079204
     K18X02B  C2018 12 12.14947 04 11 28.72 -19 18 46.3          19.0 GVEX079I52
     K18X02B  C2018 12 12.15140 04 11 28.57 -19 18 32.4          19.5 GVEX079I52
     K18X02B  C2018 12 12.15159 04 11 28.57 -19 18 30.8          19.0 GVEX079I52
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
703 Catalina Sky Survey.  Observer B. M. Africano.  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.  0.68-m Schmidt + 10K CCD.
E23 Arcadia.  Observer A. Hidas.  0.35-m f/1.9 reflector + 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.  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.
L29 Drebach-South Observatory, Windhoek.  Observers G. Lehmann, K. Lehmann.
    0.4-m f/3.6 reflector + CCD.
 
Orbital elements:
2018 XB2                                                 Earth MOID = 0.1269 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  70.37154              (2000.0)            P               Q
n   0.51965875     Peri.  344.13526     +0.21379731     -0.91994339
a   1.5322297      Node    92.62672     +0.92823428     +0.08647892
e   0.2801427      Incl.   19.20635     +0.30442050     +0.38239452
P   1.90           H   21.6           G   0.15           U   7
Residuals in seconds of arc
181209 703  0.7-  0.2+    181209 E23  0.5+  0.4+    181210 L01  0.3-  0.5+
181209 703  0.0   0.1+    181210 I52  0.2-  0.1+    181210 L01  0.7-  0.5+
181209 703  0.0   0.0     181210 I52  0.4-  0.2-    181211 L29  0.2-  0.2-
181209 703  0.1+  0.4+    181210 I52  0.5-  0.5-    181211 L29  0.7-  0.2-
181209 H01  0.0   0.0     181210 I52  0.4+  0.1+    181211 L29  0.1+  0.9+
181209 H01  0.1+  0.2-    181210 H21  0.6+  0.3-    181211 L29  0.7+  0.4-
181209 H01  0.0   0.1-    181210 H21  0.7+  0.0     181211 204  0.4-  0.1-
181209 H01  0.1+  0.1-    181210 H21  0.3+  0.4-    181211 204  0.2+  0.0
181209 I52  0.5-  0.1-    181210 104  0.3+  0.4-    181211 204  0.0   0.1-
181209 I52  0.2-  0.1-    181210 104  0.2+  0.1-    181212 I52  0.0   0.6-
181209 I52  0.3+  0.1-    181210 104  0.0   0.0     181212 I52  0.1-  0.1+
181209 I52  0.1-  0.2-    181210 L01  0.5+  0.2+    181212 I52  0.1+  0.4+
181209 E23  0.2+  0.0     181210 L01  0.3+  0.3+
181209 E23  0.7-  0.2+    181210 L01  0.2-  0.1+

Ephemeris:
2018 XB2                 a,e,i = 1.53, 0.28, 19                  q = 1.1030
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 12    04 36 37.2 -46 02 23   0.2860  1.1338   113.3    53.3    21.1
...
2018 11 27    04 26 50.8 -38 57 53   0.2173  1.1111   119.9    50.4    20.4
...
2018 12 05    04 18 49.6 -30 45 21   0.1836  1.1049   126.6    45.7    19.9
...
2018 12 11    04 12 35.0 -21 26 35   0.1629  1.1030   133.4    40.4    19.5
2018 12 12    04 11 35.5 -19 35 17   0.1600  1.1030   134.7    39.4    19.4
2018 12 13    04 10 37.4 -17 38 44   0.1573  1.1030   135.9    38.4    19.3
...
2018 12 19    04 05 33.4 -04 20 22   0.1464  1.1044   143.0    32.4    19.0
...
2018 12 27    04 01 43.6 +15 32 29   0.1485  1.1100   146.3    29.5    19.0
...
2019 01 11    04 08 46.3 +44 01 01   0.2009  1.1316   133.7    38.9    19.9

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X79



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