[Iaude] MPEC X77: 2020 XE2 [a=2.25,e=0.48,i=3.0,H=24.3]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 9 03:59:54 EST 2020


M.P.E.C. 2020-X77                              Issued 2020 December 9, 08:58 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

                                    2020 XE2                                    


Observations:
     K20X02E* C2020 12 07.41382 05 21 25.43 +23 19 05.8          21.4 GVEX077V00
     K20X02E  C2020 12 07.41926 05 21 25.97 +23 19 11.6          21.2 GVEX077V00
     K20X02E  C2020 12 07.42468 05 21 26.49 +23 19 16.8          21.2 GVEX077V00
     K20X02E  C2020 12 07.43011 05 21 27.02 +23 19 22.2          21.6 GVEX077V00
     K20X02E KC2020 12 07.47262 05 21 31.20 +23 20 04.5          21.7 RoEX077291
     K20X02E KC2020 12 07.48341 05 21 32.28 +23 20 15.3                oEX077291
     K20X02E KC2020 12 07.49016 05 21 32.96 +23 20 22.0                oEX077291
     K20X02E KC2020 12 08.27471 05 23 02.51 +23 34 24.3                oEX077691
     K20X02E KC2020 12 08.29761 05 23 04.72 +23 34 50.0                oEX077691
     K20X02E KC2020 12 08.34225605 23 08.86 +23 35 36.5                VEX077V06
     K20X02E KC2020 12 08.34463205 23 09.14 +23 35 40.0          21.78GVEX077V06
     K20X02E KC2020 12 08.34700905 23 09.38 +23 35 42.2          21.85GVEX077V06
     K20X02E KC2020 12 08.34938505 23 09.63 +23 35 43.9          21.57GVEX077V06
     K20X02E KC2020 12 09.20957 05 24 48.32 +23 51 12.5          21.2 RoEX077291
     K20X02E KC2020 12 09.21405 05 24 48.80 +23 51 17.6          20.8 RoEX077291
     K20X02E KC2020 12 09.21853 05 24 49.21 +23 51 23.0          21.0 RoEX077291

Observer details:
291 LPL/Spacewatch II.  Observers T. H. Bressi, M. T. Read.  1.8-m f/2.7
    reflector + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer M. T. Read.  0.9-m
    f/3 reflector + CCD.
V00 Kitt Peak-Bok.  Observer H. Groeller.  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.  2.25-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.

Orbital elements:
2020 XE2                                                 Earth MOID = 0.1831 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 355.55906              (2000.0)            P               Q                  
n   0.29168503     Peri.   23.81725     -0.16853699     -0.98442085             
a   2.2517835      Node    75.91592     +0.89585676     -0.17418204             
e   0.4825829      Incl.    2.96131     +0.41113981     -0.02400440             
P   3.38           H   24.36          G   0.15           U   9                  
Residuals in seconds of arc
201207 V00  0.2-  0.1-    201207 291  0.1-  0.1+    201208 V06  0.4+  0.5-
201207 V00  0.1+  0.2+    201208 691  0.1-  0.3-    201209 291  0.1-  0.1-
201207 V00  0.0+  0.0-    201208 691  0.3+  0.4+    201209 291  0.3+  0.1-
201207 V00  0.1+  0.1-    201208 V06  0.7-  0.4-    201209 291  0.2-  0.2+
201207 291  0.1+  0.2-    201208 V06  0.0+  0.5+
201207 291  0.0-  0.0-    201208 V06  0.2+  0.2+

Ephemeris:
2020 XE2                 a,e,i = 2.25, 0.48, 3                   q = 1.1651
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 09    04 38 41.3 +17 29 46   0.3318  1.3002   155.8    18.2    23.5
...
2020 11 24    04 59 35.8 +19 56 19   0.2570  1.2380   165.8    11.3    22.6
...
2020 12 02    05 12 02.8 +21 48 57   0.2280  1.2116   171.0     7.3    22.1
...
2020 12 08    05 22 31.2 +23 29 36   0.2110  1.1953   174.6     4.4    21.8
2020 12 09    05 24 22.9 +23 47 33   0.2086  1.1929   175.2     4.0    21.7
2020 12 10    05 26 16.8 +24 05 46   0.2063  1.1906   175.7     3.6    21.7
...
2020 12 16    05 38 29.5 +25 59 46   0.1948  1.1788   177.2     2.4    21.4
...
2020 12 24    05 57 16.0 +28 34 50   0.1860  1.1687   174.1     5.0    21.5
...
2021 01 08    06 39 00.8 +32 27 48   0.1883  1.1675   166.9    11.0    21.8

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X77




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