[Iaude] MPEC X79: 2020 XG2 [a=1.31,e=0.32,i=16.6,H=27.6]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 9 04:06:11 EST 2020


M.P.E.C. 2020-X79                              Issued 2020 December 9, 09:05 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 XG2                                    


Observations:
     K20X02G* C2020 12 08.42852206 05 57.88 -29 16 22.8          17.75oVEX079T08
     K20X02G  C2020 12 08.43036906 05 52.68 -29 16 17.1          17.90oVEX079T08
     K20X02G  C2020 12 08.43313306 05 44.68 -29 16 07.2          17.77oVEX079T08
     K20X02G  C2020 12 08.43589906 05 36.73 -29 15 57.5          17.69oVEX079T08
     K20X02G  C2020 12 08.43819706 05 30.15 -29 15 49.3          17.66oVEX079T08
     K20X02G  C2020 12 08.43865706 05 28.91 -29 15 47.6          17.96oVEX079T08
     K20X02G  C2020 12 08.44141906 05 21.16 -29 15 37.2          17.83oVEX079T08
     K20X02G  C2020 12 08.44648806 05 07.04 -29 15 17.9          17.96oVEX079T08
     K20X02G  C2020 12 08.59627705 59 39.25 -29 01 42.7          17.91oVEX079T08
     K20X02G  C2020 12 08.59673605 59 38.50 -29 01 40.2          18.08oVEX079T08
     K20X02G  C2020 12 08.59719805 59 37.76 -29 01 36.7          18.37oVEX079T08
     K20X02G  C2020 12 08.59766005 59 37.00 -29 01 33.7          17.68oVEX079T08
     K20X02G  C2020 12 08.59811805 59 36.24 -29 01 31.1          18.04oVEX079T08
     K20X02G |C2020 12 09.24414 05 53 40.43 -28 33 26.7          19.6 VuEX079807
     K20X02G |C2020 12 09.24509 05 53 39.72 -28 33 25.7          19.4 VuEX079807
     K20X02G |C2020 12 09.24695 05 53 38.39 -28 33 24.0          19.4 VuEX079807
     K20X02G |C2020 12 09.24885 05 53 37.02 -28 33 22.3          19.6 VuEX079807
     K20X02G |C2020 12 09.25071 05 53 35.68 -28 33 20.3          19.6 VuEX079807
     K20X02G HC2020 12 09.25891105 54 08.11 -28 45 40.2          20.54GVEX079I52
     K20X02G HC2020 12 09.25915705 54 07.93 -28 45 41.3          19.48GVEX079I52
     K20X02G HC2020 12 09.25940205 54 07.75 -28 45 40.3          20.00GVEX079I52
     K20X02G HC2020 12 09.25964705 54 07.63 -28 45 39.9          19.93GVEX079I52

Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.5 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.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, J. Tonry, A. Heinze, H.
    Weiland.  Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, H.
    Flewelling, A. Fitzsimmons, J. Robinson, N. Erasmus.  0.5-m reflector +
    CCD.

Orbital elements:
2020 XG2                                                 Earth MOID = 0.0001 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M  34.22526              (2000.0)            P               Q                  
n   0.66029063     Peri.  126.27531     +0.89362525     -0.35270812             
a   1.3061086      Node   255.85479     +0.26140169     +0.91170470             
e   0.3207000      Incl.   16.63196     +0.36483293     +0.21069297             
P   1.49           H   27.69          G   0.15           U   7                  
Residuals in seconds of arc
201208 T08  1.3-  0.6+    201208 T08  0.3+  0.1+    201209 807  0.3+  0.0-
201208 T08  0.7+  0.1-    201208 T08  0.1+  0.3-    201209 807  0.3+  0.1+
201208 T08  0.3+  0.2+    201208 T08  0.1+  0.2+    201209 I52  0.2-  0.0+
201208 T08  0.1-  0.1-    201208 T08  0.1-  0.2+    201209 I52  0.3-  1.1-
201208 T08  0.8-  0.2-    201208 T08  0.5-  0.1-    201209 I52  0.4-  0.1-
201208 T08  0.0-  0.2-    201209 807  0.1+  0.0-    201209 I52  0.3+  0.3+
201208 T08  0.6+  0.0-    201209 807  0.2-  0.1+
201208 T08  0.8+  0.3-    201209 807  0.1+  0.1+

Ephemeris:
2020 XG2                 a,e,i = 1.31, 0.32, 17                  q = 0.8872
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 09    18 03 35.1 +26 18 56   0.1963  0.9167    62.5   106.5    27.9
...
2020 11 24    18 10 23.6 +28 15 10   0.09523 0.9406    58.2   116.9    27.1
...
2020 12 02    18 10 36.5 +28 49 35   0.04011 0.9640    55.9   122.1    25.6
...
2020 12 08    06 48 22.4 -29 24 33   0.0014260.9858   121.7    58.3    15.5
2020 12 09    05 55 36.9 -28 37 02   0.0083200.9900   127.1    52.5    19.2
2020 12 10    05 50 42.1 -28 27 53   0.01522 0.9942   127.6    51.7    20.5
...
2020 12 16    05 46 05.6 -28 03 24   0.05667 1.0205   128.6    49.0    23.3
...
2020 12 24    05 45 15.3 -27 11 55   0.1122  1.0578   129.0    46.2    24.8
...
2021 01 08    05 47 05.5 -24 29 38   0.2184  1.1322   128.4    42.9    26.3

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X79




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