• MPC Preparation (Info)

  • MPEC 2020-X23 : 2015 XB

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    M.P.E.C. 2020-X23                              Issued 2020 December 6, 04:24 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
    
                                     2015 XB                                 
    
    
                               Revision to MPEC 2015-X16                            
    
    Additional Observations:
         K15X00B  C2020 12 03.18938 23 58 58.75 +22 06 08.2                VEX023G96
         K15X00B  C2020 12 03.19263 23 58 59.72 +22 05 27.6          21.8 GVEX023G96
         K15X00B  C2020 12 03.19776 23 59 01.02 +22 04 26.5          20.4 GVEX023G96
         K15X00B  C2020 12 03.20288 23 59 02.34 +22 03 24.4          20.5 GVEX023G96
         K15X00B  C2020 12 05.16735800 08 40.82 +15 10 02.8          20.75GVEX023G96
         K15X00B  C2020 12 05.17248300 08 42.21 +15 08 55.2          21.34GVEX023G96
         K15X00B  C2020 12 05.17761700 08 43.66 +15 07 46.5          21.27GVEX023G96
         K15X00B  C2020 12 05.18276200 08 45.03 +15 06 38.3          20.62GVEX023G96
         K15X00B KC2020 12 05.26547800 09 08.02 +14 48 16.1          20.45GVEX023V06
         K15X00B KC2020 12 05.26710000 09 08.47 +14 47 54.4          20.48GVEX023V06
         K15X00B KC2020 12 05.26873100 09 08.94 +14 47 32.5          20.34GVEX023V06
         K15X00B KC2020 12 05.27035900 09 09.39 +14 47 10.9          20.78GVEX023V06
         K15X00B KC2020 12 06.03029100 13 04.93 +11 56 33.6          21.0 VuEX023H21
         K15X00B KC2020 12 06.03611500 13 06.55 +11 55 14.1          20.6 VuEX023H21
         K15X00B KC2020 12 06.03941600 13 07.45 +11 54 29.5          20.7 VuEX023H21
         K15X00B KC2020 12 06.09146800 13 23.76 +11 42 47.3          20.87GVEX023I52
         K15X00B KC2020 12 06.09314900 13 24.27 +11 42 23.8          21.40GVEX023I52
         K15X00B KC2020 12 06.09482900 13 24.70 +11 42 00.9          21.23GVEX023I52
         K15X00B KC2020 12 06.09650800 13 25.17 +11 41 37.9          21.09GVEX023I52
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observers G. J. Leonard, T. A. Pruyne.  Measurers K.
        W. Wierzchos, B. Gray, D. Rankin, F. C. Shelly, 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, T. A. Pruyne, R. L. Seaman.  1.5-m
        reflector + 10K CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
        astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  Measurers
        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, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m reflector +
        CCD.
    V06 Catalina Sky Survey-Kuiper.  Observer D. C. Fuls.  Measurers 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, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector +
        1K CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    201203 G96 7.21- 1.82-    201206 I52 8.14- 1.93-    MPO386949   -1.47 days
    
    Orbital elements:
    2015 XB                                                  Earth MOID = 0.0360 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 347.70769              (2000.0)            P               Q
    n   0.58989797     Peri.  212.98302     -0.20785865     -0.90989388
    a   1.4080501      Node   251.27785     +0.95932992     -0.11796332
    e   0.3000897      Incl.   22.27593     +0.19099968     -0.39771569
    P   1.67           H   24.1           G   0.15           U   1
    Residuals in seconds of arc
    151201 703  0.5+  0.6-    151205 926  0.1-  0.4+    151207 511  0.4-  0.2-
    151201 703  1.4-  0.4-    151205 926  0.2-  0.2+    151207 511  0.3+  0.6-
    151201 703  0.3-  1.2+    151205 246  0.0   0.4-    151207 511  0.3-  0.1-
    151201 703 (1.9-  0.4+)   151205 246  0.2-  0.5-    151207 511  0.0   0.1-
    151201 H01  0.0   0.1-    151205 246  0.7+  0.2-    151207 511  0.1+  1.1-
    151201 H01  0.1+  0.3-    151205 246  0.2-  0.2-    151207 511  0.2+  1.3-
    151201 H01  0.3+  0.3-    151205 246  0.2-  0.2-    151207 511  0.2-  0.7-
    151201 H01  0.0   0.2-    151206 926  0.5+  0.0     151207 511  0.0   0.5-
    151201 900  0.5+  0.2-    151206 926  0.0   0.1+    151207 511  0.4+  0.3-
    151201 900  0.3+  0.1-    151206 926  0.1+  0.1+    151207 511  0.0   0.1+
    151201 900  0.2-  0.9-    151206 926  0.2-  0.3+    151207 511  0.2+  0.6-
    151201 958 (0.0   1.8-)   151206 926  0.0   0.2+    151207 511  0.0   0.2-
    151201 958 (1.5+  1.9-)   151206 926  0.0   0.4+    151207 511  0.6+  0.2-
    151201 958  0.3+  1.4-    151206 H21  0.2-  0.0     151207 511  0.5+  0.5+
    151202 204  0.0   0.0     151206 H21  0.1-  0.2+    151207 511  0.6+  0.2-
    151202 204  0.1-  0.2-    151206 H21  0.3-  0.2+    151208 926  0.1+  0.8-
    151202 204  0.1-  0.4-    151206 H21  0.2-  0.3+    151208 926  0.2-  0.6+
    151202 204  0.0   0.3-    151206 H21  0.0   0.0     151208 926  0.2+  0.2+
    151202 204  0.1-  0.4-    151206 H21  0.1-  0.4+    151208 926  0.1+  0.1-
    151202 H01  0.0   0.1-    151206 H21  0.2-  0.3+    151208 926  0.0   0.4+
    151202 H01  0.0   0.1-    151206 H21  0.2-  0.1+    151208 926 (0.3-  1.6+)
    151202 H01  0.0   0.1-    151206 H21  0.2-  0.3+    151209 926  0.4-  0.1+
    151202 926  0.0   0.4-    151206 H21  0.2-  0.2+    151209 926  0.2+  0.0
    151202 H01  0.0   0.2-    151206 H21  0.1-  0.0     151209 926  0.1-  0.4-
    151202 926  0.0   0.1+    151206 H21  0.1-  0.2+    151217 807  0.0   0.1-
    151202 926  1.0-  0.2-    151206 H21  0.4-  0.3+    151217 807  0.8-  0.3+
    151202 926  0.1+  0.1-    151206 H21  0.1-  0.3+    151217 807  0.7-  0.7+
    151202 926  0.1-  0.2+    151206 H21  0.1-  0.3+    151217 807  0.2+  0.5+
    151202 926  0.0   0.3-    151206 926  0.0   0.3-    151217 807  0.1+  0.0
    151202 926  0.1-  0.1-    151206 926  0.0   0.1-    151218 807  0.4-  0.4-
    151202 926  0.1-  0.0     151206 926  0.5-  0.4+    151218 807  0.1+  0.5-
    151202 926  0.2+  0.3+    151207 246 (0.6+  2.6+)   151218 807  0.1+  0.0
    151202 K51  0.1+  0.2+    151207 246  0.5+  0.3-    151218 807  0.1+  0.0
    151202 K51  0.1-  0.6+    151207 246  0.2+  0.1-    151218 807  0.2-  0.4+
    151202 K51  0.6+  0.2+    151207 246  0.2-  0.8+    201203 G96  0.7-  0.8+
    151203 926  0.2-  0.3+    151207 246  0.2+  0.0     201203 G96  1.1+  0.5-
    151203 926  0.2-  1.0+    151207 246  0.4+  1.4+    201203 G96  0.5+  0.3+
    151203 926  0.0   0.3+    151207 511  0.3-  0.9-    201203 G96  0.3+  0.1+
    151204 926  0.1+  0.1+    151207 511  0.1-  0.2-    201205 G96  0.3-  0.3+
    151204 926  0.0   0.1-    151207 511  0.1-  0.4+    201205 G96  0.3-  0.7+
    151204 926  0.6-  0.5+    151207 511  0.1-  0.2+    201205 G96  0.4+  0.1+
    151204 926  0.0   0.0     151207 511  0.2+  0.7+    201205 G96  0.0   0.2+
    151204 926  0.1-  0.4+    151207 511  0.4+  0.1+    201205 V06  0.1+  0.1+
    151204 926  0.3+  0.3-    151207 511  0.1+  0.9+    201205 V06  0.1-  0.1+
    151204 926  0.2+  0.2+    151207 511  0.4+  0.1+    201205 V06  0.0   0.0
    151204 926  0.2+  0.4+    151207 511  0.1+  0.3+    201205 V06  0.2-  0.2+
    151204 926  0.2+  1.2+    151207 511  0.2-  1.0-    201206 H21  0.1-  0.2-
    151204 703 (0.2+  1.7-)   151207 511  0.1+  0.3-    201206 H21  0.0   0.2-
    151204 703  0.3+  0.1-    151207 511  0.9+  0.7+    201206 H21  0.3-  0.3+
    151204 703  0.4+  0.5-    151207 511  0.3+  0.5+    201206 I52  0.4-  0.1+
    151204 703  0.2-  0.4-    151207 511  0.6-  0.4-    201206 I52  0.3+  0.4-
    151205 926  0.4-  0.7-    151207 511  0.1+  0.4+    201206 I52  0.2-  0.3-
    151205 926  0.2+  0.5+    151207 511  0.0   0.4-    201206 I52  0.1-  0.4-
    151205 926  0.1-  0.8+    151207 511  0.3-  1.1-
    151205 926  0.1-  1.0-    151207 511  0.3+  0.3+
    
    Ephemeris:
    2015 XB                  a,e,i = 1.41, 0.30, 22                  q = 0.9855
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 11 06    22 45 54.4 +62 33 20   0.2566  1.1340   117.8    50.6    23.3
    ...
    2020 11 21    23 11 07.3 +49 33 52   0.1644  1.0764   118.6    53.7    22.3
    ...
    2020 11 29    23 40 06.3 +34 21 47   0.1234  1.0498   117.9    56.1    21.7
    ...
    2020 12 05    00 07 52.2 +15 47 23   0.1032  1.0324   114.4    60.4    21.4
    2020 12 06    00 12 55.0 +12 04 18   0.1012  1.0297   113.4    61.4    21.4
    2020 12 07    00 18 04.0 +08 13 28   0.09973 1.0271   112.2    62.6    21.4
    ...
    2020 12 13    00 50 47.2 -15 22 40   0.1015  1.0129   103.5    71.0    21.6
    ...
    2020 12 21    01 37 11.1 -39 12 27   0.1277  0.9983    92.9    79.8    22.4
    ...
    2021 01 05    03 00 34.5 -58 36 43   0.2061  0.9857    84.7    83.3    23.6
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-X23
    


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