[Iaude] MPEC X205: 2021 XR5 [a=1.88,e=0.49,i=7.9,H=27.6]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 12 08:17:42 EST 2021


M.P.E.C. 2021-X205                            Issued 2021 December 12, 13:16 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 XR5                                    


Observations:
     K21X05R* C2021 12 08.28740105 06 31.42 +27 20 12.3          21.26GVEX205G96
     K21X05R  C2021 12 08.29258605 06 36.69 +27 18 50.8          21.15GVEX205G96
     K21X05R  C2021 12 08.29777305 06 41.88 +27 17 29.3          20.84GVEX205G96
     K21X05R  C2021 12 08.30296605 06 47.02 +27 16 08.4          21.24GVEX205G96
     K21X05R KC2021 12 08.38139705 08 04.77 +26 55 37.8          20.76GVEX205I52
     K21X05R KC2021 12 08.38475905 08 08.09 +26 54 45.0          20.68GVEX205I52
     K21X05R KC2021 12 08.38812005 08 11.30 +26 53 51.8          19.31GVEX205I52
     K21X05R KC2021 12 09.23455305 21 49.48 +23 31 41.7          21.09GVEX205I52
     K21X05R KC2021 12 09.23781505 21 51.92 +23 30 58.5          20.50GVEX205I52
     K21X05R KC2021 12 09.24107705 21 54.48 +23 30 16.9          20.62GVEX205I52
     K21X05R KC2021 12 12.21649905 51 48.44 +15 05 07.4          22.35GVEX205V06
     K21X05R KC2021 12 12.21930605 51 49.46 +15 04 44.3                VEX205V06
     K21X05R KC2021 12 12.22210705 51 50.59 +15 04 25.0                VEX205V06
     K21X05R KC2021 12 12.22491105 51 51.67 +15 04 03.6          20.92GVEX205V06

Observer details:
G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  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.
I52 Steward Observatory, Mt. Lemmon Station.  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, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.
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, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector + 1K CCD.

Orbital elements:
2021 XR5                                                 Earth MOID = 0.0246 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  27.42898              (2000.0)            P               Q                  
n   0.38345611     Peri.  144.94819     +0.73473827     -0.66504455             
a   1.8764008      Node   257.31829     +0.58686395     +0.72202918             
e   0.4855076      Incl.    7.87673     +0.34022107     +0.19076060             
P   2.57           H   27.63          G   0.15           U   8                  
Residuals in seconds of arc
211208 G96  0.3-  0.0     211208 I52  0.0   0.3+    211212 V06  0.3-  0.2+
211208 G96  0.5+  0.3-    211208 I52 (1.4-  0.0 )   211212 V06 (1.0-  1.8-)
211208 G96  0.4+  0.6-    211209 I52  0.2+  0.2-    211212 V06  0.0   0.1+
211208 G96  0.2-  0.1-    211209 I52 (0.9-  0.9-)   211212 V06  0.3+  0.2-
211208 I52  0.1-  0.3+    211209 I52  0.3-  0.0

Ephemeris:
2021 XR5                 a,e,i = 1.88, 0.49, 8                   q = 0.9654
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 12    19 35 05.8 +17 30 37   0.1159  0.9653    74.4    98.9    26.4
...
2021 11 27    20 53 06.6 +35 42 41   0.04369 0.9859    87.6    89.9    24.0
...
2021 12 05    03 21 22.6 +44 57 03   0.02764 1.0099   151.6    27.7    21.1
...
2021 12 11    05 41 51.4 +18 00 06   0.04889 1.0331   171.3     8.3    21.7
2021 12 12    05 50 07.7 +15 34 24   0.05366 1.0373   169.0    10.4    22.0
2021 12 13    05 56 51.6 +13 32 20   0.05859 1.0417   167.1    12.2    22.3
...
2021 12 19    06 19 50.5 +06 19 07   0.09039 1.0699   161.2    17.3    23.5
...
2021 12 27    06 31 51.7 +02 39 04   0.1366  1.1123   159.2    18.3    24.5
...
2022 01 11    06 40 34.4 +01 30 33   0.2352  1.2028   156.5    19.0    25.9

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X205




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