[Iaude] MPEC X212: 2021 XA6 [a=0.89,e=0.16,i=6.7,H=24.9]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Dec 13 06:54:21 EST 2021


M.P.E.C. 2021-X212                            Issued 2021 December 13, 11:52 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 XA6                                    


Observations:
     K21X06A* C2021 12 12.25166822 12 47.16 +05 20 15.4          16.47oVEX212T08
     K21X06A  C2021 12 12.25581522 13 11.12 +05 30 00.6          15.66oVEX212T08
     K21X06A  C2021 12 12.26180022 13 45.61 +05 43 58.3          16.44oVEX212T08
     K21X06A  C2021 12 12.27337322 14 52.68 +06 10 55.9          16.72oVEX212T08
     K21X06A  C2021 12 13.12966123 25 13.80 +28 32 51.2          16.47GVEX212703
     K21X06A  C2021 12 13.13551523 25 31.72 +28 38 18.9          17.19GVEX212703
     K21X06A  C2021 12 13.14136923 25 49.64 +28 43 44.2          15.75GVEX212703
     K21X06A KC2021 12 13.16645323 27 06.44 +29 06 25.7          16.39GVEX212V06
     K21X06A KC2021 12 13.16685623 27 07.67 +29 06 47.2          16.41GVEX212V06
     K21X06A KC2021 12 13.16726123 27 08.92 +29 07 08.8          16.51GVEX212V06
     K21X06A KC2021 12 13.16766523 27 10.17 +29 07 30.3          16.45GVEX212V06
     K21X06A  C2021 12 13.17389123 27 25.95 +29 11 51.9          15.3 GVEX212H01
     K21X06A  C2021 12 13.17858223 27 40.52 +29 15 57.7          15.5 GVEX212H01
     K21X06A  C2021 12 13.18894823 28 12.81 +29 24 55.7          15.4 GVEX212H01
     K21X06A  C2021 12 13.19474523 28 30.89 +29 29 53.0          15.6 GVEX212H01
     K21X06A  C2021 12 13.19888123 28 43.82 +29 33 23.6          16.3 GVEX212H01
     K21X06A  C2021 12 13.25791823 32 36.29 +30 34 31.2          15.41oVEX212T08
     K21X06A  C2021 12 13.26070223 32 43.92 +30 36 46.6          15.36oVEX212T08
     K21X06A  C2021 12 13.26821123 33 04.50 +30 42 48.4          16.61oVEX212T08
     K21X06A  C2021 12 13.27801923 33 31.37 +30 50 33.9          15.90oVEX212T08
     K21X06A  C2021 12 13.45890 23 43 15.81 +33 01 57.0          16.1 RrEX212P93
     K21X06A  C2021 12 13.45933 23 43 16.87 +33 02 14.1          16.1 RrEX212P93
     K21X06A  C2021 12 13.45977 23 43 17.94 +33 02 31.6          16.1 RrEX212P93
     K21X06A  C2021 12 13.46065 23 43 20.09 +33 03 06.3          16.1 RrEX212P93

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.
P93 Space Tracking and Communications Center, JAXA.  Observers S. Okumura, M.
    Hagino.  1.0-m f/3.0 reflector + CCD.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, R. Siverd, J. Tonry, H.
    Weiland.  Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A. Lawrence,
    J. Robinson, R. Siverd, J. Tonry, H. Weiland.  0.5-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, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector + 1K CCD.

Orbital elements:
2021 XA6                                                 Earth MOID = 0.0010 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M 170.45169              (2000.0)            P               Q                  
n   1.17296736     Peri.  223.06497     +0.53213178     +0.83877321             
a   0.8904553      Node    79.39877     -0.74145035     +0.52741485             
e   0.1607722      Incl.    6.73673     -0.40876296     +0.13525188             
P   0.84           H   24.91          G   0.15           U   6                  
Residuals in seconds of arc
211212 T08  0.4-  0.4-    211213 V06  0.2-  0.1-    211213 T08  0.1-  0.2-
211212 T08  0.0   0.1+    211213 V06  0.0   0.0     211213 T08  0.0   0.1+
211212 T08  0.9-  2.1-    211213 V06  0.0   0.0     211213 T08  0.5+  0.5+
211212 T08  2.7+  4.8+    211213 H01  0.1+  0.1+    211213 T08  0.3+  0.3+
211213 703  0.4+  0.3-    211213 H01  0.0   0.1-    211213 P93  0.1-  0.1+
211213 703  0.4+  0.4-    211213 H01  0.1+  0.1+    211213 P93  0.0   0.0
211213 703  0.4+  0.1-    211213 H01  0.1+  0.1+    211213 P93  0.1-  0.0
211213 V06  0.1-  0.0     211213 H01  0.0   0.1-    211213 P93  0.1-  0.3-

Ephemeris:
2021 XA6                 a,e,i = 0.89, 0.16, 7                   q = 0.7473
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 13    14 16 22.7 -49 31 40   0.09520 0.9119    33.6   143.1    26.9
...
2021 11 28    14 16 31.9 -52 21 36   0.04447 0.9523    38.6   139.8    24.9
...
2021 12 06    14 50 50.5 -54 34 55   0.01885 0.9708    39.1   140.2    23.1
...
2021 12 12    21 45 25.2 -05 13 12   0.0033330.9833    67.2   112.7    16.8
2021 12 13    23 17 48.0 +26 21 34   0.0050950.9854    99.5    80.2    16.2
2021 12 14    00 06 34.7 +37 54 58   0.0078320.9873   111.9    67.6    16.7
...
2021 12 20    01 25 44.5 +49 06 45   0.02644 0.9984   122.8    56.0    19.0
...
2021 12 28    01 49 33.9 +50 47 11   0.05174 1.0109   120.8    56.7    20.6
...
2022 01 12    02 16 58.1 +51 24 01   0.09892 1.0271   113.6    61.3    22.1

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X212




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