[Iaude] MPEC X48: 2020 XD1 [a=1.63,e=0.38,i=2.4,H=27.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Dec 7 03:55:06 EST 2020


M.P.E.C. 2020-X48                              Issued 2020 December 7, 08:53 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 XD1                                    


Observations:
     K20X01D* C2020 12 06.35990004 03 37.92 +02 50 08.9          21.05GVEX048G96
     K20X01D  C2020 12 06.36504604 03 42.82 +02 50 09.5          22.04GVEX048G96
     K20X01D  C2020 12 06.37018404 03 47.65 +02 50 09.7          21.11GVEX048G96
     K20X01D  C2020 12 06.37531504 03 52.47 +02 50 09.5          20.44GVEX048G96
     K20X01D KC2020 12 06.42014004 04 35.33 +02 50 11.9          20.97GVEX048I52
     K20X01D KC2020 12 06.42408704 04 39.20 +02 50 11.9          20.60GVEX048I52
     K20X01D KC2020 12 06.42803304 04 42.99 +02 50 12.5          20.37GVEX048I52
     K20X01D KC2020 12 06.43201304 04 46.86 +02 50 11.7          20.83GVEX048I52
     K20X01D KC2020 12 07.11071804 16 22.71 +02 51 10.4          20.98GVEX048I52
     K20X01D KC2020 12 07.11269404 16 24.63 +02 51 11.0          20.74GVEX048I52
     K20X01D KC2020 12 07.11466904 16 26.41 +02 51 10.6          21.22GVEX048I52
     K20X01D KC2020 12 07.11664404 16 28.28 +02 51 10.8          20.37GVEX048I52
     K20X01D KC2020 12 07.22438504 18 05.17 +02 51 14.9          20.9 V EX048858
     K20X01D KC2020 12 07.23271404 18 12.63 +02 51 15.9          20.9 V EX048858
     K20X01D KC2020 12 07.24199104 18 20.90 +02 51 16.4          21.3 V EX048858

Observer details:
858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.51-m Schmidt-
    Cassegrain + CCD.
G96 Mt. Lemmon Survey.  Observer T. A. Pruyne.  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.
I52 Steward Observatory, Mt. Lemmon Station.  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.  1.0-m reflector +
    CCD.

Orbital elements:
2020 XD1                                                 Earth MOID = 0.0272 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M   9.81617              (2000.0)            P               Q                  
n   0.47301980     Peri.  184.45888     +0.46205275     -0.88616549             
a   1.6313601      Node   238.02508     +0.81493820     +0.43977938             
e   0.3779725      Incl.    2.35790     +0.34983279     +0.14596169             
P   2.08           H   27.14          G   0.15           U   8                  
Residuals in seconds of arc
201206 G96  0.0+  0.1-    201206 I52  0.5+  0.1+    201207 I52  0.3-  0.2-
201206 G96  0.5+  0.2+    201206 I52  0.2+  0.6+    201207 I52  0.2+  0.3-
201206 G96  0.0+  0.1+    201206 I52  0.5+  0.3-    201207 858  0.2-  0.1-
201206 G96  0.7-  0.3-    201207 I52  0.5-  0.1+    201207 858  0.1+  0.1+
201206 I52  0.5-  0.3+    201207 I52  0.6+  0.5+    201207 858  0.1+  0.2-

Ephemeris:
2020 XD1                 a,e,i = 1.63, 0.38, 2                   q = 1.0148
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 07    22 53 45.9 +02 44 16   0.08019 1.0342   120.6    55.5    23.8
...
2020 11 22    00 17 39.7 +02 21 12   0.04723 1.0156   125.1    52.7    22.5
...
2020 11 30    02 09 10.3 +02 38 39   0.03682 1.0155   142.0    36.7    21.5
...
2020 12 06    03 57 36.6 +02 51 34   0.03757 1.0199   156.5    22.6    21.1
2020 12 07    04 14 22.7 +02 52 57   0.03853 1.0210   158.0    21.2    21.2
2020 12 08    04 30 16.2 +02 54 17   0.03969 1.0222   159.0    20.2    21.2
...
2020 12 14    05 44 47.4 +03 06 00   0.05030 1.0316   159.4    19.6    21.7
...
2020 12 22    06 39 39.5 +03 42 13   0.07066 1.0496   158.2    20.4    22.5
...
2021 01 06    07 20 58.8 +05 39 42   0.1196  1.0982   162.8    15.3    23.6

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X48




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