[Iaude] MPEC X76: 2020 XD2 [a=1.41,e=0.18,i=22.9,H=24.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 9 03:58:29 EST 2020


M.P.E.C. 2020-X76                              Issued 2020 December 9, 08:57 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 XD2                                    


Observations:
     K20X02D* C2020 12 07.43699 05 58 28.19 +40 16 56.5          21.4 GVEX076V00
     K20X02D  C2020 12 07.44190 05 58 27.36 +40 16 21.9          21.6 GVEX076V00
     K20X02D  C2020 12 07.44683 05 58 26.53 +40 15 46.8          21.2 GVEX076V00
     K20X02D  C2020 12 07.45173 05 58 25.71 +40 15 12.9          21.6 GVEX076V00
     K20X02D KC2020 12 07.49384 05 58 18.78 +40 10 15.0          21.5 RoEX076291
     K20X02D KC2020 12 07.49765 05 58 18.25 +40 09 47.4                oEX076291
     K20X02D KC2020 12 07.50145 05 58 17.54 +40 09 21.0          21.7 RoEX076291
     K20X02D KC2020 12 07.50208705 58 17.39 +40 09 15.6          22.56GVEX076V06
     K20X02D KC2020 12 07.50475805 58 17.06 +40 08 57.1          22.05GVEX076V06
     K20X02D KC2020 12 07.51009405 58 16.11 +40 08 19.0                VEX076V06
     K20X02D KC2020 12 08.35874605 56 13.16 +38 29 04.1          20.76GVEX076V06
     K20X02D KC2020 12 08.36232105 56 12.52 +38 28 38.5          21.43GVEX076V06
     K20X02D KC2020 12 08.36587705 56 11.95 +38 28 13.2          21.34GVEX076V06
     K20X02D KC2020 12 08.37950805 56 09.70 +38 26 35.7          21.11GVEX076V06
     K20X02D KC2020 12 08.47201 05 55 54.48 +38 15 31.9          21.7 RoEX076291
     K20X02D KC2020 12 08.48748 05 55 52.05 +38 13 39.6          20.2 RoEX076291
     K20X02D KC2020 12 09.28335205 54 00.31 +36 38 31.3          21.18GVEX076I52
     K20X02D KC2020 12 09.28755205 53 59.59 +36 38 01.5          21.19GVEX076I52

Observer details:
291 LPL/Spacewatch II.  Observers T. H. Bressi, M. T. Read.  1.8-m f/2.7
    reflector + 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.
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 XD2                                                 Earth MOID = 0.1839 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M  16.12742              (2000.0)            P               Q                  
n   0.58974694     Peri.  157.79829     +0.44104912     -0.80971444             
a   1.4082905      Node   264.12354     +0.75380805     +0.56829425             
e   0.1782242      Incl.   22.90064     +0.48708223     -0.14630166             
P   1.67           H   24.11          G   0.15           U   9                  
Residuals in seconds of arc
201207 V00  0.1+  0.2+    201207 291  0.2-  0.2-    201208 V06  0.0-  0.0-
201207 V00  0.0+  0.1+    201207 V06  0.6-  0.3-    201208 V06  0.4+  0.2-
201207 V00  0.1-  0.3-    201207 V06  0.5+  0.1+    201208 291  0.0-  0.4+
201207 V00  0.1-  0.3+    201207 V06  0.6-  0.1-    201208 291  0.5+  0.0+
201207 291  0.1-  0.0-    201208 V06  0.1+  0.1+    201209 I52  0.1+  0.2-
201207 291  0.9+  0.6-    201208 V06  0.3-  0.0-    201209 I52  0.3-  0.2+

Ephemeris:
2020 XD2                 a,e,i = 1.41, 0.18, 23                  q = 1.1573
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 09    06 57 04.9 +71 33 27   0.3137  1.1595   115.2    50.6    23.8
...
2020 11 24    06 33 25.3 +60 32 37   0.2358  1.1577   131.7    39.5    22.9
...
2020 12 02    06 12 33.9 +49 54 35   0.2038  1.1603   145.9    28.4    22.2
...
2020 12 08    05 57 06.5 +39 11 22   0.1890  1.1639   159.5    17.3    21.7
2020 12 09    05 54 40.2 +37 12 40   0.1875  1.1646   161.9    15.2    21.6
2020 12 10    05 52 17.2 +35 11 36   0.1863  1.1654   164.4    13.1    21.6
...
2020 12 16    05 39 20.8 +22 43 38   0.1866  1.1707   178.8     1.0    21.0
...
2020 12 24    05 26 27.2 +07 34 23   0.2056  1.1799   161.0    15.8    21.9
...
2021 01 08    05 15 35.1 -09 59 48   0.2817  1.2026   136.2    34.5    23.2

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X76




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