[Iaude] MPEC X201: 2021 XN5 [a=2.04,e=0.46,i=8.5,H=23.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Dec 11 11:34:13 EST 2021


M.P.E.C. 2021-X201                            Issued 2021 December 11, 16:32 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 XN5                                    


Observations:
     K21X05N* C2021 12 08.41214808 44 01.84 +26 42 55.7          21.30GVEX201G96
     K21X05N  C2021 12 08.41733308 44 02.52 +26 42 34.5          20.52GVEX201G96
     K21X05N  C2021 12 08.42253808 44 03.19 +26 42 13.2          20.88GVEX201G96
     K21X05N  C2021 12 08.42772408 44 03.93 +26 41 52.7          20.97GVEX201G96
     K21X05N KC2021 12 08.46250208 44 08.67 +26 39 31.8          21.10GVEX201I52
     K21X05N KC2021 12 08.46552708 44 09.05 +26 39 19.3          21.11GVEX201I52
     K21X05N KC2021 12 08.46748508 44 09.32 +26 39 11.7          21.42GVEX201I52
     K21X05N KC2021 12 08.47542408 44 10.38 +26 38 39.4          21.21GVEX201V06
     K21X05N KC2021 12 08.47656908 44 10.53 +26 38 34.8          21.18GVEX201V06
     K21X05N KC2021 12 08.47777908 44 10.70 +26 38 29.7          20.73GVEX201V06
     K21X05N KC2021 12 08.49403208 44 12.87 +26 37 22.9          20.05GVEX201V06
     K21X05N KC2021 12 08.49633108 44 13.20 +26 37 13.9          21.27GVEX201V06
     K21X05N KC2021 12 08.49862908 44 13.50 +26 37 04.3          21.44GVEX201V06
     K21X05N KC2021 12 09.34266308 46 23.51 +25 39 54.3          21.04GVEX201I52
     K21X05N KC2021 12 09.34494508 46 23.76 +25 39 45.2          21.16GVEX201I52
     K21X05N KC2021 12 09.34722608 46 24.08 +25 39 36.5          21.22GVEX201I52

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 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.  1.55-m reflector + 1K CCD.

Orbital elements:
2021 XN5                                                 Earth MOID = 0.1246 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  15.91967              (2000.0)            P               Q                  
n   0.33816746     Peri.  167.43429     +0.17898715     -0.97271274             
a   2.0403978      Node   272.11600     +0.88939995     +0.22412376             
e   0.4581831      Incl.    8.49523     +0.42063206     -0.05998730             
P   2.91           H   23.18          G   0.15           U   9                  
Residuals in seconds of arc
211208 G96  0.3+  0.2+    211208 I52  0.1+  0.3+    211208 V06  0.2-  0.1-
211208 G96  0.1-  0.0     211208 V06  0.0   0.2+    211209 I52  0.5+  0.1-
211208 G96  0.6-  0.3-    211208 V06  0.2-  0.2+    211209 I52  0.2-  0.1-
211208 G96  0.1-  0.1+    211208 V06  0.0   0.1+    211209 I52  0.0   0.2+
211208 I52  0.3+  0.0     211208 V06  0.4-  0.3-
211208 I52  0.0   0.2-    211208 V06  0.2-  0.1+

Ephemeris:
2021 XN5                 a,e,i = 2.04, 0.46, 8                   q = 1.1055
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 11    06 32 15.3 +50 23 43   0.2198  1.1365   127.2    44.0    21.9
...
2021 11 26    07 59 22.8 +39 59 15   0.1864  1.1099   127.3    45.0    21.5
...
2021 12 04    08 31 06.3 +31 39 30   0.1786  1.1056   128.4    44.3    21.4
...
2021 12 10    08 47 56.0 +24 55 43   0.1774  1.1069   129.8    43.1    21.3
2021 12 11    08 50 13.1 +23 48 18   0.1776  1.1076   130.1    42.8    21.3
2021 12 12    08 52 21.8 +22 41 10   0.1778  1.1083   130.4    42.5    21.3
...
2021 12 18    09 02 32.0 +16 10 33   0.1815  1.1149   132.6    40.5    21.3
...
2021 12 26    09 09 48.3 +08 25 51   0.1915  1.1297   136.3    37.0    21.4
...
2022 01 10    09 09 06.2 -01 56 11   0.2242  1.1740   144.9    28.8    21.5

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X201




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