[Iaude] MPEC X95: 2020 XS2 [a=2.58,e=0.61,i=9.8,H=24.9]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Dec 10 08:30:27 EST 2020 

M.P.E.C. 2020-X95                             Issued 2020 December 10, 13:29 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

                                    2020 XS2                                    


Observations:
     K20X02S  C2020 12 05.32190 03 02 36.48 +09 21 19.0          20.6 GVEX095G96
     K20X02S  C2020 12 05.32705 03 02 36.24 +09 21 47.9          21.1 GVEX095G96
     K20X02S* C2020 12 08.25368103 01 16.783+14 50 57.10         20.96wUEX095F51
     K20X02S  C2020 12 08.26595603 01 16.017+14 52 34.60         20.87wUEX095F51
     K20X02S  C2020 12 08.29081503 01 14.417+14 55 52.06         21.26wUEX095F51
     K20X02S KC2020 12 09.13707503 00 51.11 +16 51 58.5          20.6 VqEX095858
     K20X02S KC2020 12 09.14315303 00 51.23 +16 52 54.9          21.01GVEX095I52
     K20X02S KC2020 12 09.14543303 00 50.58 +16 53 12.2          21.0 VqEX095858
     K20X02S KC2020 12 09.14567403 00 51.03 +16 53 17.9          21.01GVEX095I52
     K20X02S KC2020 12 09.14819303 00 50.91 +16 53 39.4          21.23GVEX095I52
     K20X02S KC2020 12 09.15071303 00 50.80 +16 54 01.8          20.31GVEX095I52
     K20X02S KC2020 12 09.19337203 00 45.77 +17 00 01.7          20.9 VuEX095H21
     K20X02S KC2020 12 09.19981403 00 45.34 +17 00 56.8          20.8 VuEX095H21
     K20X02S KC2020 12 10.10868 03 00 24.77 +19 19 40.5          21.0 GVEX095734
     K20X02S KC2020 12 10.13170 03 00 23.35 +19 23 22.3          21.0 GVEX095734
     K20X02S KC2020 12 10.14320 03 00 22.63 +19 25 14.1          20.9 GVEX095734
     K20X02S KC2020 12 10.17317703 00 21.83 +19 30 10.6          20.7 GVEX095858
     K20X02S KC2020 12 10.18015203 00 21.37 +19 31 18.4          20.9 GVEX095858
     K20X02S KC2020 12 10.18710903 00 20.94 +19 32 25.5          20.7 GVEX095858

Observer details:
734 Farpoint Observatory, Eskridge.  Observers G. Hug, D. Cromer, D. Goodin,
    R. Valentine.  Measurer G. Hug.  0.7-m reflector + CCD.
858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.51-m Schmidt-
    Cassegrain + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
    Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
    Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
    R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer T. A. Pruyne.  Measurers D. Rankin, B. Gray,
    F. C. Shelly.  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. Rankin.  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.

Orbital elements:
2020 XS2                                                 Earth MOID = 0.0512 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M 355.47986              (2000.0)            P               Q
n   0.23741301     Peri.   32.35228     -0.29168672     -0.94235780
a   2.5830513      Node    75.05638     +0.83750011     -0.33441749
e   0.6140752      Incl.    9.76992     +0.46207404     +0.01125670
P   4.15           H   24.9           G   0.15           U   7
Residuals in seconds of arc
201205 G96  0.5-  0.2+    201209 858  0.2+  0.2+    201210 734  0.3-  0.1-
201205 G96  0.2+  0.3-    201209 I52  0.5-  0.1+    201210 734  0.2-  0.3+
201208 F51  0.1-  0.0     201209 I52  0.1+  0.3-    201210 858  0.2-  0.1-
201208 F51  0.0   0.1+    201209 I52  0.7+  0.1+    201210 858  0.2-  0.1-
201208 F51  0.1+  0.2+    201209 H21  0.5+  0.2+    201210 858  0.2+  0.6-
201209 858  0.4+  0.6-    201209 H21  0.0   0.5-
201209 I52  0.2+  0.9-    201210 734  0.4-  1.1+

Ephemeris:
2020 XS2                 a,e,i = 2.58, 0.61, 10                  q = 0.9969
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 10    03 14 33.6 -05 06 54   0.2618  1.2363   157.5    17.8    23.4
...
2020 11 25    03 08 03.1 -00 52 30   0.1619  1.1354   154.5    22.0    22.3
...
2020 12 03    03 03 50.4 +06 04 08   0.1161  1.0898   152.3    24.9    21.6
...
2020 12 09    03 00 52.5 +16 32 50   0.08593 1.0605   150.4    27.3    20.9
2020 12 10    03 00 25.4 +19 02 51   0.08143 1.0561   150.0    27.8    20.8
2020 12 11    02 59 59.4 +21 50 14   0.07714 1.0518   149.4    28.5    20.7
...
2020 12 17    02 58 10.4 +46 14 34   0.05766 1.0292   140.4    37.5    20.3
...
2020 12 25    13 38 34.9 +88 26 49   0.05913 1.0079   112.8    64.1    21.0
...
2021 01 09    14 46 35.0 +49 32 45   0.1181  0.9983    93.8    79.4    23.0

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X95

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