[Iaude] MPEC X55: 2021 XM [a=0.75,e=0.36,i=8.6,H=27.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Dec 2 20:06:01 EST 2021


M.P.E.C. 2021-X55                              Issued 2021 December 3, 01:04 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 XM                                     


Observations:
     K21X00M* C2021 12 01.19204223 32 15.93 +19 21 13.8          19.57GVEX055703
     K21X00M  C2021 12 01.20348223 32 22.88 +19 23 17.7          19.65GVEX055703
     K21X00M  C2021 12 01.20919123 32 26.39 +19 24 19.2          20.27GVEX055703
     K21X00M KC2021 12 01.27377823 33 07.35 +19 35 31.7          19.55GVEX055I52
     K21X00M KC2021 12 01.27465723 33 07.90 +19 35 40.7          20.61GVEX055I52
     K21X00M KC2021 12 01.27554123 33 08.51 +19 35 49.4          19.73GVEX055I52
     K21X00M 1C2021 12 01.82669 23 39 21.12 +21 00 00.7          21.0 VVEX055033
     K21X00M 1C2021 12 01.82727 23 39 21.38 +21 00 04.8          20.3 VVEX055033
     K21X00M 1C2021 12 01.82785 23 39 21.63 +21 00 09.0          20.2 VVEX055033
     K21X00M mC2021 12 02.06517023 41 39.18 +21 31 48.9          20.97GVEX055I52
     K21X00M mC2021 12 02.06554323 41 39.30 +21 31 51.5          21.27GVEX055I52
     K21X00M mC2021 12 02.06742723 41 39.88 +21 32 04.3          21.29GVEX055I52
     K21X00M mC2021 12 02.07138523 41 41.20 +21 32 33.1          22.01GVEX055I52
     K21X00M KC2021 12 02.72519 23 46 15.95 +22 34 53.4          20.5 GVEX055204
     K21X00M KC2021 12 02.73970 23 46 19.45 +22 36 08.3                VEX055204
     K21X00M KC2021 12 03.00991023 47 52.01 +22 57 56.6          20.7 VuEX055H21
     K21X00M KC2021 12 03.01830023 47 53.68 +22 58 34.5          20.7 VuEX055H21

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
    Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
    f/3 Schmidt + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
703 Catalina Sky 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.  0.68-m Schmidt + 10K 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. Rankin.  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.

Orbital elements:
2021 XM                                                  Earth MOID = 0.0004 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M 222.48775              (2000.0)            P               Q                  
n   1.52425888     Peri.  199.87083     -0.07248063     +0.98802061             
a   0.7477623      Node    66.17189     -0.89375242     -0.00371359             
e   0.3625775      Incl.    8.56533     -0.44266598     -0.15427732             
P   0.65           H   27.16          G   0.15           U   7                  
Residuals in seconds of arc
211201 703  0.0   1.0+    211201 033  0.3-  0.3+    211202 I52  0.9+  0.4+
211201 703  0.0   0.0     211201 033  0.1-  0.0     211202 204  0.0   0.0
211201 703  0.3+  0.3-    211201 033  0.0   0.2-    211202 204  0.1+  0.2+
211201 I52  0.1+  0.1-    211202 I52  0.2-  0.1-    211203 H21  0.4-  0.2-
211201 I52  0.2-  0.1+    211202 I52  0.1-  0.1-    211203 H21  0.1+  0.2-
211201 I52  0.1+  0.1-    211202 I52  0.2-  0.6-

Ephemeris:
2021 XM                  a,e,i = 0.75, 0.36, 9                   q = 0.4766
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 03    12 29 01.2 -28 35 55   0.1296  0.8843    31.6   144.0    29.9
...
2021 11 18    12 25 12.6 -30 21 52   0.05191 0.9517    43.7   134.1    26.8
...
2021 11 26    13 10 31.5 -38 01 12   0.01210 0.9780    41.5   138.0    24.1
...
2021 12 02    23 41 00.9 +21 25 37   0.01879 0.9935   113.1    65.9    20.8
2021 12 03    23 47 45.1 +22 58 54   0.02374 0.9958   114.0    64.7    21.3
2021 12 04    23 52 19.7 +23 59 39   0.02870 0.9979   114.4    64.1    21.7
...
2021 12 10    00 05 03.6 +26 29 53   0.05854 1.0085   112.3    64.6    23.3
...
2021 12 18    00 13 05.6 +27 39 15   0.09784 1.0169   107.0    67.7    24.5
...
2022 01 02    00 25 15.6 +28 52 26   0.1678  1.0148    96.0    74.5    25.9

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X55




More information about the Iaude mailing list