[Iaude] MPEC X93: 2020 XR2 [a=1.91,e=0.45,i=4.7,H=21.4]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Dec 10 08:26:37 EST 2020


M.P.E.C. 2020-X93                             Issued 2020 December 10, 13:25 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 XR2                                    


Observations:
     K20X02R  C2020 11 23.30715 04 08 03.91 +23 52 22.2          21.5 GVEX093G96
     K20X02R  C2020 11 23.31859 04 08 02.70 +23 52 23.6                VEX093G96
     K20X02R  C2020 11 23.32375 04 08 02.14 +23 52 24.6          22.1 GVEX093G96
     K20X02R  C2020 12 04.30163 03 47 33.96 +24 14 58.1                VEX093G96
     K20X02R  C2020 12 04.31324 03 47 32.52 +24 14 59.4                VEX093G96
     K20X02R  C2020 12 07.33584 03 41 33.01 +24 18 55.4          21.6 GVEX093V00
     K20X02R* C2020 12 07.33693 03 41 32.86 +24 18 55.6          21.3 GVEX093V00
     K20X02R  C2020 12 07.34076 03 41 32.39 +24 18 56.1          21.6 GVEX093V00
     K20X02R  C2020 12 07.34185 03 41 32.27 +24 18 56.5          21.8 GVEX093V00
     K20X02R  C2020 12 07.34568 03 41 31.80 +24 18 56.6          21.5 GVEX093V00
     K20X02R  C2020 12 07.34676 03 41 31.64 +24 18 56.3          21.4 GVEX093V00
     K20X02R  C2020 12 07.35060 03 41 31.18 +24 18 56.6          21.6 GVEX093V00
     K20X02R  C2020 12 07.35169 03 41 31.05 +24 18 56.6          21.8 GVEX093V00
     K20X02R KC2020 12 07.36562 03 41 29.30 +24 18 57.4          21.4 RoEX093291
     K20X02R KC2020 12 07.37069 03 41 28.70 +24 18 57.8          21.5 RoEX093291
     K20X02R KC2020 12 07.37576 03 41 28.04 +24 18 57.8                oEX093291
     K20X02R KC2020 12 07.40468703 41 24.46 +24 18 58.8          20.97GVEX093V06
     K20X02R KC2020 12 07.40785503 41 24.12 +24 18 58.8          21.48GVEX093V06
     K20X02R KC2020 12 07.41102303 41 23.72 +24 18 59.3          21.47GVEX093V06
     K20X02R KC2020 12 07.41419003 41 23.34 +24 18 59.3          21.03GVEX093V06
     K20X02R KC2020 12 08.19240403 39 52.04 +24 19 53.2          21.39GVEX093V06
     K20X02R KC2020 12 08.19477903 39 51.74 +24 19 53.4          20.77GVEX093V06
     K20X02R KC2020 12 08.19715503 39 51.44 +24 19 53.7          20.66GVEX093V06
     K20X02R KC2020 12 08.19953003 39 51.16 +24 19 53.4          21.71GVEX093V06
     K20X02R KC2020 12 08.45530 03 39 19.63 +24 20 06.2          21.8 RoEX093291
     K20X02R KC2020 12 08.46203 03 39 18.83 +24 20 06.2          22.2 RoEX093291
     K20X02R KC2020 12 09.15200 03 37 58.63 +24 20 51.9          21.5 RoEX093291
     K20X02R KC2020 12 09.15401503 37 58.35 +24 20 51.7          21.53GVEX093I52
     K20X02R KC2020 12 09.15648 03 37 58.07 +24 20 52.1          21.6 RoEX093291
     K20X02R KC2020 12 09.15779503 37 57.90 +24 20 52.2          21.19GVEX093I52
     K20X02R KC2020 12 09.16157403 37 57.41 +24 20 52.3          21.27GVEX093I52
     K20X02R KC2020 12 10.15650203 35 59.85 +24 21 47.3          22.0 VuEX093H21
     K20X02R KC2020 12 10.16299103 35 59.05 +24 21 47.5          22.0 VuEX093H21

Observer details:
291 LPL/Spacewatch II.  Observers T. H. Bressi, M. T. Read.  1.8-m f/2.7
    reflector + CCD.
G96 Mt. Lemmon Survey.  Observers D. C. Fuls, G. J. Leonard.  Measurers D.
    Rankin, B. Gray, F. C. Shelly.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0
    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.
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 XR2                                                 Earth MOID = 0.0944 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M 323.03986              (2000.0)            P               Q
n   0.37394682     Peri.  111.02879     -0.93692547     -0.34392489
a   1.9080781      Node    48.91156     +0.28205588     -0.84927633
e   0.4500633      Incl.    4.74453     +0.20643438     -0.40055635
P   2.64           H   21.4           G   0.15           U   7
Residuals in seconds of arc
201123 G96  0.1-  0.2+    201207 V00  0.1+  0.0     201208 V06  0.3-  0.1+
201123 G96  0.1+  0.1-    201207 V00  0.2+  0.0     201208 V06  0.1-  0.3-
201123 G96  0.0   0.1+    201207 291  0.2-  0.1+    201208 291  0.4+  0.0
201204 G96  0.2+  0.5-    201207 291  0.2+  0.3+    201208 291  0.5+  0.2-
201204 G96  0.3+  0.1-    201207 291  0.3-  0.1+    201209 291  0.1+  0.2+
201207 V00  0.1+  0.4-    201207 V06  0.6-  0.0     201209 I52  0.1-  0.1-
201207 V00  0.1-  0.3-    201207 V06  0.1+  0.1-    201209 291  0.0   0.0
201207 V00  0.1-  0.0     201207 V06  0.1-  0.3+    201209 I52  0.1+  0.1+
201207 V00  0.2+  0.4+    201207 V06  0.0   0.1+    201209 I52  0.2-  0.1-
201207 V00  0.2+  0.3+    201208 V06  0.2-  0.0     201210 H21  0.2+  0.1+
201207 V00  0.1-  0.1-    201208 V06  0.3-  0.0     201210 H21  0.2+  0.0

Ephemeris:
2020 XR2                 a,e,i = 1.91, 0.45, 5                   q = 1.0493
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 10    04 26 22.7 +23 11 23   0.7350  1.6974   159.1    12.0    22.6
...
2020 11 25    04 05 08.6 +23 56 41   0.6182  1.6047   176.8     2.0    21.6
...
2020 12 03    03 50 08.0 +24 13 01   0.5758  1.5547   168.9     7.0    21.7
...
2020 12 09    03 38 16.1 +24 20 46   0.5529  1.5170   160.3    12.6    21.8
2020 12 10    03 36 18.2 +24 21 43   0.5497  1.5107   158.9    13.6    21.8
2020 12 11    03 34 21.1 +24 22 35   0.5468  1.5045   157.5    14.5    21.8
...
2020 12 17    03 23 09.1 +24 26 38   0.5331  1.4669   149.0    20.2    21.9
...
2020 12 25    03 10 33.6 +24 32 05   0.5235  1.4171   138.1    27.6    22.0
...
2021 01 09    02 57 50.5 +25 01 02   0.5224  1.3259   120.3    39.8    22.2

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X93




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