[Iaude] MPEC X219: 2021 XD6 [a=1.12,e=0.18,i=0.8,H=28.5]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Dec 13 17:09:33 EST 2021


M.P.E.C. 2021-X219                            Issued 2021 December 13, 22:08 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 XD6                                    


Observations:
     K21X06D* C2021 12 13.25408505 36 03.03 +04 36 06.9          18.38GVEX219703
     K21X06D  C2021 12 13.25960605 36 05.37 +04 39 26.2          18.86GVEX219703
     K21X06D  C2021 12 13.26513105 36 07.65 +04 42 42.8          19.26GVEX219703
     K21X06D  C2021 12 13.27066405 36 09.84 +04 46 00.7          19.00GVEX219703
     K21X06D mC2021 12 13.31373905 36 26.97 +05 11 14.2          18.38GVEX219I52
     K21X06D mC2021 12 13.31499805 36 27.45 +05 11 57.9          18.55GVEX219I52
     K21X06D mC2021 12 13.31516305 36 27.50 +05 12 03.3          18.31GVEX219I52
     K21X06D mC2021 12 13.31532805 36 27.57 +05 12 09.2          18.34GVEX219I52
     K21X06D  C2021 12 13.43176605 37 12.53 +06 15 00.2          18.4 GVEX219H01
     K21X06D  C2021 12 13.43487005 37 14.06 +06 16 36.1          18.1 GVEX219H01
     K21X06D  C2021 12 13.43982205 37 16.53 +06 19 09.3          18.4 GVEX219H01
     K21X06D  C2021 12 13.44496605 37 19.19 +06 21 47.0          18.2 GVEX219H01
     K21X06D KC2021 12 13.52999 05 39 39.19 +07 27 14.4          18.8 VqEX219E23
     K21X06D KC2021 12 13.56358 05 39 49.41 +07 43 20.2          19.0 VqEX219E23
     K21X06D KC2021 12 13.57746 05 39 53.55 +07 49 51.5                qEX219E23
     K21X06D IC2021 12 13.82568805 43 10.33 +09 12 19.5          18.9 GVEX219L01
     K21X06D bC2021 12 13.82723905 43 10.95 +09 12 57.6          18.0 GVEX219L01
     K21X06D bC2021 12 13.82879605 43 11.55 +09 13 36.2          19.5 GVEX219L01
     K21X06D IC2021 12 13.83035505 43 12.12 +09 14 14.1          18.5 GVEX219L01
     K21X06D bC2021 12 13.83352905 43 13.33 +09 15 31.5          19.0 GVEX219L01
     K21X06D bC2021 12 13.83501605 43 13.86 +09 16 08.0          18.4 GVEX219L01
     K21X06D KC2021 12 13.84739605 43 21.09 +09 20 57.8                VEX219203
     K21X06D KC2021 12 13.85371905 43 20.25 +09 23 31.9                XEX219595
     K21X06D KC2021 12 13.85526 05 43 29.73 +09 24 07.2          19.0 GVEX219I93
     K21X06D KC2021 12 13.85627505 43 24.26 +09 24 32.4          18.7 GVEX219203
     K21X06D KC2021 12 13.85809 05 43 30.82 +09 25 14.8                VEX219I93
     K21X06D KC2021 12 13.85842005 43 32.02 +09 25 35.3          17.9 GXEX219958
     K21X06D KC2021 12 13.86083 05 43 31.87 +09 26 21.1          19.2 GVEX219I93
     K21X06D KC2021 12 13.86556805 43 34.73 +09 28 26.3          17.6 GXEX219958
     K21X06D KC2021 12 13.86706205 43 27.99 +09 28 50.8          18.6 GVEX219203
     K21X06D KC2021 12 13.87072605 43 25.88 +09 30 18.4          18.9 GXEX219595
     K21X06D KC2021 12 13.87095 05 43 39.19 +09 31 30.7          17.8 GXEX219J57
     K21X06D KC2021 12 13.87271505 43 37.28 +09 31 19.9          17.4 GXEX219958
     K21X06D KC2021 12 13.87561 05 43 40.80 +09 33 21.8          17.3 GXEX219J57
     K21X06D KC2021 12 13.87986 05 43 42.24 +09 35 03.2          18.1 GXEX219J57
     K21X06D KC2021 12 13.89045705 43 42.47 +09 38 53.8          18.8 GVEX219B49
     K21X06D KC2021 12 13.89263905 43 43.20 +09 39 45.1          18.7 GVEX219B49
     K21X06D KC2021 12 13.89541705 43 44.03 +09 40 51.0          18.1 GVEX219B49
     K21X06D KC2021 12 13.89993105 43 45.34 +09 42 36.0          19.0 GVEX219B49

Observer details:
203 GiaGa Observatory.  Observers S. Foglia, G. Galli.  Measurer G. Galli.
    0.36-m f/5.76 Schmidt-Cassegrain + CCD.
595 Farra d'Isonzo.  Observers E. Pettarin, A. Toso.  Measurer E. Pettarin.
    0.61-m f/4.5 reflector + CCD.
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.
958 Observatoire de Dax.  Observer P. Dupouy.  0.32-m Schmidt-Cassegrain +
    CCD.
B49 Paus Observatory, Sabadell.  Observer J. Camarasa.  0.30-m f/4.0 reflector
    + CCD.
E23 Arcadia.  Observer A. Hidas.  0.35-m f/1.9 reflector + 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.
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.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
J57 Centro Astronomico Alto Turia, Valencia.  Observer A. Fornas.  Measurers
    A. Fornas, G. Fornas, E. Arce, V. Mas.  0.43-m f/6.8 reflector + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.

Orbital elements:
2021 XD6                                                 Earth MOID = 0.0027 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  75.22710              (2000.0)            P               Q                  
n   0.83155846     Peri.  291.39041     +0.93246515     -0.36096624             
a   1.1199729      Node    89.77151     +0.33661013     +0.85349758             
e   0.1838921      Incl.    0.83449     +0.13115775     +0.37582609             
P   1.19           H   28.53          G   0.15           U   5                  
Residuals in seconds of arc
211213 703  1.1+  1.8+    211213 E23  0.3-  1.0+    211213 958  0.0   1.3+
211213 703  0.7+  1.2+    211213 E23 (1.6+  2.0+)   211213 I93  0.3-  0.0
211213 703  0.0   1.2-    211213 L01  0.1-  0.2-    211213 958  0.0   0.2+
211213 703  1.5-  1.7-    211213 L01  0.3+  0.2-    211213 203  0.1-  0.0
211213 I52  0.1-  0.1-    211213 L01  0.3+  0.2+    211213 595  0.3-  0.3-
211213 I52  0.1-  0.3+    211213 L01  0.1-  0.1-    211213 J57  0.1+  0.2+
211213 I52  0.2-  0.1-    211213 L01  0.2+  0.4-    211213 958  0.9-  3.0+
211213 I52  0.1-  0.1+    211213 L01  0.2-  0.2-    211213 J57  0.1+  0.0
211213 H01  0.1-  0.1-    211213 203  0.5+  0.2-    211213 J57  0.3+  0.3+
211213 H01  0.0   0.3-    211213 595  0.3-  0.2-    211213 B49  0.6-  0.4-
211213 H01  0.1-  0.2+    211213 I93  0.2-  0.4+    211213 B49  0.4+  0.4-
211213 H01  0.6+  0.1-    211213 203  0.1-  0.1+    211213 B49  0.1+  0.3+
211213 E23  0.5+  0.3-    211213 I93  0.3-  0.2-    211213 B49  0.4-  0.1-

Ephemeris:
2021 XD6                 a,e,i = 1.12, 0.18, 1                   q = 0.9140
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 13    17 57 36.2 -25 54 17   0.08382 0.9260    39.0   137.7    29.5
...
2021 11 28    18 11 55.9 -28 18 45   0.03770 0.9533    27.4   151.6    30.0
...
2021 12 06    18 26 40.4 -34 34 58   0.01489 0.9719    24.4   155.2    28.9
...
2021 12 12    05 01 04.4 -18 04 25   0.0037120.9874   138.7    41.1    18.0
2021 12 13    05 31 28.0 +01 58 23   0.0059960.9901   158.7    21.2    18.4
2021 12 14    05 44 07.9 +10 28 26   0.0086180.9928   166.5    13.4    19.0
...
2021 12 20    06 03 33.5 +22 33 46   0.02544 1.0092   177.1     2.9    20.9
...
2021 12 28    06 08 15.8 +25 22 29   0.04899 1.0323   175.3     4.5    22.4
...
2022 01 12    06 13 07.2 +26 33 03   0.09864 1.0773   161.2    17.1    24.6

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X219




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