[Iaude] MPEC X20: 2020 XG [a=0.92,e=0.36,i=1.2,H=28.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Dec 5 17:14:50 EST 2020


M.P.E.C. 2020-X20                              Issued 2020 December 5, 22:13 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 XG                                     


Observations:
     K20X00G* C2020 12 04.33689703 52 32.37 +24 43 43.1                VEX020G96
     K20X00G  C2020 12 04.34210703 52 27.97 +24 42 38.7          19.98GVEX020G96
     K20X00G  C2020 12 04.34730403 52 23.67 +24 41 35.1          19.89GVEX020G96
     K20X00G  C2020 12 04.35250403 52 19.43 +24 40 30.8          19.48GVEX020G96
     K20X00G KC2020 12 04.43866303 51 14.19 +24 23 08.0          19.14GVEX020I52
     K20X00G KC2020 12 04.44056003 51 12.82 +24 22 44.9          19.83GVEX020I52
     K20X00G KC2020 12 05.09977503 46 28.70 +22 44 48.9          20.6 VuEX020H21
     K20X00G KC2020 12 05.10268603 46 27.18 +22 44 28.9          20.3 VuEX020H21
     K20X00G KC2020 12 05.10431903 46 34.34 +22 44 27.7                VEX020I52
     K20X00G KC2020 12 05.10530803 46 33.90 +22 44 21.1          20.26GVEX020I52
     K20X00G KC2020 12 05.10568903 46 25.66 +22 44 08.7          20.3 VuEX020H21
     K20X00G KC2020 12 05.10629703 46 33.45 +22 44 15.0          20.56GVEX020I52
     K20X00G KC2020 12 05.10728403 46 32.91 +22 44 08.2          20.74GVEX020I52
     K20X00G KC2020 12 05.40537 03 44 08.19 +22 11 00.0          20.3 RoEX020691
     K20X00G KC2020 12 05.42441 03 44 00.64 +22 08 52.0          20.5 RoEX020691

Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer T. H. Bressi.  0.9-m
    f/3 reflector + CCD.
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  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.  1.5-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.  Observers D. Rankin, 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.

Orbital elements:
2020 XG                                                  Earth MOID = 0.0022 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M  98.16876              (2000.0)            P               Q
n   1.11649463     Peri.   52.58199     +0.61737001     +0.78639210
a   0.9202340      Node   255.55554     -0.72844169     +0.56137913
e   0.3636861      Incl.    1.24362     -0.29703025     +0.25776141
P   0.88           H   28.0           G   0.15           U   7
Residuals in seconds of arc
201204 G96  0.2+  0.4+    201204 I52  0.2-  0.4-    201205 H21  0.0   0.1+
201204 G96  0.4-  0.0     201205 H21  0.0   0.2-    201205 I52  0.7+  0.3+
201204 G96  0.3-  0.2+    201205 H21  0.4-  0.2-    201205 I52  0.2-  0.0
201204 G96  0.2+  0.3-    201205 I52  0.3-  0.0     201205 691  0.7-  0.3-
201204 I52  0.6+  0.1+    201205 I52  0.2+  0.1-    201205 691  0.6+  0.3+

Ephemeris:
2020 XG                  a,e,i = 0.92, 0.36, 1                   q = 0.5856
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 05    15 24 27.1 -15 50 08   0.1840  0.8112    10.4   167.2
...
2020 11 20    15 20 53.7 -14 17 37   0.07547 0.9133     7.4   172.0
...
2020 11 28    15 07 05.6 -09 30 19   0.02368 0.9644    20.4   159.1    30.5
...
2020 12 04    03 57 03.7 +26 00 29   0.01521 1.0005   169.1    10.8    19.6
2020 12 05    03 46 56.9 +22 59 38   0.02148 1.0063   166.3    13.4    20.5
2020 12 06    03 41 38.2 +21 19 43   0.02781 1.0121   163.9    15.6    21.1
...
2020 12 12    03 32 17.5 +18 05 22   0.06642 1.0452   155.0    23.4    23.3
...
2020 12 20    03 31 57.2 +17 15 01   0.1197  1.0857   146.6    29.9    24.9
...
2021 01 04    03 40 39.3 +17 23 56   0.2260  1.1502   133.4    38.4    26.6

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X20




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