[Iaude] MPEC X220: 2021 XE6 [a=2.06,e=0.53,i=5.3,H=24.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Dec 13 17:46:37 EST 2021


M.P.E.C. 2021-X220                            Issued 2021 December 13, 22:45 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 XE6                                    


Observations:
     K21X06E* C2021 12 12.46649212 34 20.03 +54 27 41.6          17.93GVEX220703
     K21X06E  C2021 12 12.47192812 33 50.13 +54 25 10.7          17.83GVEX220703
     K21X06E  C2021 12 12.47737412 33 20.43 +54 22 38.0          18.13GVEX220703
     K21X06E mC2021 12 12.50720712 30 36.31 +54 08 28.5          18.55GVEX220I52
     K21X06E mC2021 12 12.50737612 30 35.36 +54 08 23.7          18.37GVEX220I52
     K21X06E mC2021 12 12.50754212 30 34.46 +54 08 19.0          18.15GVEX220I52
     K21X06E mC2021 12 12.50770712 30 33.54 +54 08 14.6          17.64GVEX220I52
     K21X06E KC2021 12 13.10170 11 46 37.76 +48 48 59.7          17.9 RoEX220K88
     K21X06E KC2021 12 13.10348 11 46 30.76 +48 48 02.5          17.7 RoEX220K88
     K21X06E  C2021 12 13.16301 11 42 41.45 +48 15 53.4          17.9 RoEX220K88
     K21X06E  C2021 12 13.16330 11 42 40.28 +48 15 43.6          17.9 RoEX220K88
     K21X06E  C2021 12 13.16360 11 42 39.20 +48 15 34.4          17.8 RoEX220K88
     K21X06E  C2021 12 13.16389 11 42 38.07 +48 15 24.4          17.6 RoEX220K88
     K21X06E KC2021 12 13.37517611 30 57.06 +46 19 05.5          18.6 VuEX220H21
     K21X06E KC2021 12 13.37584711 30 54.79 +46 18 44.2          18.2 VuEX220H21
     K21X06E KC2021 12 13.37662711 30 52.18 +46 18 19.4          17.8 VuEX220H21
     K21X06E KC2021 12 13.37797211 30 47.66 +46 17 36.5          18.2 VuEX220H21
     K21X06E KC2021 12 13.37867911 30 45.29 +46 17 14.2          17.8 VuEX220H21
     K21X06E  C2021 12 13.38508711 30 33.50 +46 13 19.4          18.5 GVEX220H01
     K21X06E  C2021 12 13.38883211 30 21.13 +46 11 22.1          17.6 GVEX220H01
     K21X06E  C2021 12 13.39553011 29 58.95 +46 07 52.0          17.4 GVEX220H01
     K21X06E  C2021 12 13.39949311 29 45.87 +46 05 47.7          18.3 GVEX220H01

Observer details:
703 Catalina Sky Survey.  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.  0.68-m Schmidt + 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. 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.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.

Orbital elements:
2021 XE6                                                 Earth MOID = 0.0129 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  18.20020              (2000.0)            P               Q                  
n   0.33223267     Peri.  152.09335     +0.47270879     -0.87644456             
a   2.0646249      Node   269.56835     +0.79049014     +0.46768332             
e   0.5310941      Incl.    5.25605     +0.38945056     +0.11453055             
P   2.97           H   24.28          G   0.15           U   8                  
Residuals in seconds of arc
211212 703  0.9-  0.5-    211213 K88  0.3-  0.2+    211213 H21  0.3-  0.3-
211212 703  0.2+  0.4+    211213 K88  0.3+  0.1-    211213 H21  0.2-  0.1-
211212 703 (3.2+  0.5+)   211213 K88  0.6-  0.7-    211213 H01  0.1-  0.0
211212 I52  0.2+  0.2-    211213 K88  0.1+  0.1+    211213 H01  0.2+  0.1+
211212 I52  0.0   0.1-    211213 K88  0.1+  0.2-    211213 H01  0.1-  0.0
211212 I52  0.1+  0.0     211213 H21  0.3-  0.1-    211213 H01  0.1+  0.1+
211212 I52  0.1-  0.3+    211213 H21  0.5-  0.1-
211213 K88  0.3+  0.3+    211213 H21  0.3-  0.1-

Ephemeris:
2021 XE6                 a,e,i = 2.06, 0.53, 5                   q = 0.9681
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 13    20 32 26.1 +11 04 17   0.1331  0.9849    84.1    88.2    23.0
...
2021 11 28    20 20 28.9 +18 28 36   0.06669 0.9681    72.0   104.2    22.2
...
2021 12 06    19 37 46.9 +33 41 29   0.03166 0.9745    68.9   109.3    20.9
...
2021 12 12    13 20 14.8 +57 51 55   0.01709 0.9861    94.5    84.5    18.4
2021 12 13    11 52 50.8 +49 45 59   0.01824 0.9886   102.5    76.5    18.2
2021 12 14    11 02 23.0 +40 48 05   0.02048 0.9912   109.0    69.9    18.3
...
2021 12 20    09 36 00.1 +13 23 39   0.04355 1.0101   126.1    51.9    19.4
...
2021 12 28    09 11 15.9 +04 20 10   0.08030 1.0427   136.0    40.9    20.5
...
2022 01 12    08 50 25.6 +00 48 53   0.1552  1.1226   151.8    24.5    21.6

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X220




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