[Iaude] MPEC X106: 2021 XE2 [a=1.46,e=0.38,i=1.2,H=27.8]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Dec 4 10:09:24 EST 2021


M.P.E.C. 2021-X106                             Issued 2021 December 4, 15:08 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

                                    2021 XE2                                    


Observations:
     K21X02E* C2021 12 03.26707703 35 34.09 +01 16 29.5          20.47GVEX106G96
     K21X02E  C2021 12 03.27226903 35 42.26 +01 17 43.8          21.52GVEX106G96
     K21X02E  C2021 12 03.27748203 35 50.54 +01 18 58.2          20.55GVEX106G96
     K21X02E  C2021 12 03.28268203 35 58.79 +01 20 12.4          20.56GVEX106G96
     K21X02E KC2021 12 03.37141203 38 17.64 +01 40 55.3          20.57GVEX106I52
     K21X02E KC2021 12 03.37367603 38 21.19 +01 41 25.8          20.98GVEX106I52
     K21X02E KC2021 12 03.37593803 38 24.70 +01 41 56.8          20.50GVEX106I52
     K21X02E KC2021 12 04.11711903 56 52.62 +04 11 12.9          20.9 VuEX106H21
     K21X02E KC2021 12 04.12271203 56 59.28 +04 12 13.0          20.8 VuEX106H21
     K21X02E KC2021 12 04.12550803 57 02.63 +04 12 42.8          20.7 VuEX106H21
     K21X02E KC2021 12 04.20547403 58 41.64 +04 27 02.5          20.9 GXEX106858
     K21X02E KC2021 12 04.21401403 58 51.42 +04 28 31.1          20.9 GXEX106858
     K21X02E KC2021 12 04.22091903 58 59.29 +04 29 42.1          20.2 GXEX106858
     K21X02E  C2021 12 04.39830604 02 16.82 +04 59 08.6          20.3 GVEX106H01
     K21X02E  C2021 12 04.40152204 02 20.37 +04 59 39.2          20.9 GVEX106H01
     K21X02E  C2021 12 04.41225504 02 32.30 +05 01 21.4          20.8 GVEX106H01
     K21X02E  C2021 12 04.41931304 02 40.14 +05 02 28.6          20.5 GVEX106H01

Observer details:
858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.51-m Schmidt-
    Cassegrain + CCD.
G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  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, D. Rankin, R. L. Seaman, F. C.
    Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 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, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.

Orbital elements:
2021 XE2                                                 Earth MOID = 0.0048 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  49.79705              (2000.0)            P               Q                  
n   0.55633537     Peri.  147.08280     +0.94290405     -0.33262166             
a   1.4641254      Node   232.35467     +0.30070214     +0.87232039             
e   0.3837969      Incl.    1.24249     +0.14321376     +0.35835732             
P   1.77           H   27.89          G   0.15           U   7                  
Residuals in seconds of arc
211203 G96  0.0   0.2-    211203 I52  0.0   0.2-    211204 858  0.2+  0.1-
211203 G96  0.7-  0.1-    211204 H21  0.1+  0.5-    211204 H01  0.0   0.1+
211203 G96  0.3-  0.1-    211204 H21  0.1-  0.1-    211204 H01  0.2-  0.1+
211203 G96  0.5+  0.1-    211204 H21  0.1+  0.1-    211204 H01  0.1+  0.0
211203 I52  0.1-  0.6+    211204 858  0.1-  0.1-    211204 H01  0.0   0.1+
211203 I52  0.3+  0.0     211204 858  0.1+  0.1+

Ephemeris:
2021 XE2                 a,e,i = 1.46, 0.38, 1                   q = 0.9022
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 04    18 06 43.5 -20 48 56   0.1360  0.9107    50.1   123.3    28.5
...
2021 11 19    18 51 05.5 -23 23 34   0.05754 0.9486    45.1   132.4    27.5
...
2021 11 27    21 04 38.9 -28 44 42   0.02028 0.9788    66.1   112.8    23.7
...
2021 12 03    03 27 32.1 +00 12 57   0.02153 1.0050   152.4    27.0    20.8
2021 12 04    03 54 08.3 +03 53 14   0.02566 1.0096   158.5    21.0    21.0
2021 12 05    04 13 17.2 +06 29 31   0.03013 1.0143   162.4    17.1    21.2
...
2021 12 11    05 04 32.0 +13 10 02   0.05988 1.0438   170.1     9.4    22.5
...
2021 12 19    05 25 28.5 +15 51 39   0.1032  1.0859   170.9     8.2    23.7
...
2022 01 03    05 40 12.3 +17 54 18   0.1954  1.1709   162.2    14.9    25.5

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X106




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