[Iaude] MPEC X42: 2021 XG [a=0.96,e=0.18,i=3.8,H=28.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Dec 2 03:28:50 EST 2021


M.P.E.C. 2021-X42                              Issued 2021 December 2, 08:27 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 XG                                     


Observations:
     K21X00G* C2021 12 01.41065803 31 54.50 +38 43 06.1          21.46GVEX042V00
     K21X00G  C2021 12 01.41551703 31 50.55 +38 42 42.3          21.59GVEX042V00
     K21X00G  C2021 12 01.42037303 31 46.58 +38 42 18.8          21.19GVEX042V00
     K21X00G  C2021 12 01.42523703 31 42.65 +38 41 54.5          22.01GVEX042V00
     K21X00G KC2021 12 01.44986203 31 22.82 +38 39 49.0          20.88GVEX042V06
     K21X00G KC2021 12 01.45213103 31 20.98 +38 39 36.9                VEX042V06
     K21X00G 1C2021 12 02.01098 03 24 18.68 +37 57 33.0          22.1 VVEX042033
     K21X00G 1C2021 12 02.01234 03 24 17.49 +37 57 25.9          21.7 VVEX042033
     K21X00G 1C2021 12 02.01368 03 24 16.36 +37 57 19.3          22.5 VVEX042033
     K21X00G 1C2021 12 02.01503 03 24 15.19 +37 57 12.0          22.8 VVEX042033
     K21X00G KC2021 12 02.11074503 23 21.90 +37 50 24.4          22.07GVEX042I52
     K21X00G KC2021 12 02.11210703 23 20.71 +37 50 18.1          21.51GVEX042I52
     K21X00G KC2021 12 02.11347103 23 19.51 +37 50 12.7          21.46GVEX042I52
     K21X00G KC2021 12 02.11483403 23 18.32 +37 50 07.1          21.25GVEX042I52

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.
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.
V00 Kitt Peak-Bok.  Observer R. A. Mastaler.  Measurers M. J. Brucker, E. J.
    Christensen, C. E. Woodward, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
    Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. S.
    McMillan, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  2.25-m
    reflector + CCD.
V06 Catalina Sky Survey-Kuiper.  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.  1.55-m reflector + 1K CCD.

Orbital elements:
2021 XG                                                  Earth MOID = 0.0019 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Bell                    
M 311.07763              (2000.0)            P               Q                  
n   1.05364837     Peri.  291.19517     -0.98417389     +0.16496059             
a   0.9564720      Node   258.34475     -0.12792537     -0.91415197             
e   0.1761708      Incl.    3.78950     -0.12262485     -0.37028931             
P   0.94           H   28.19          G   0.15           U   8                  
Residuals in seconds of arc
211201 V00  0.0   0.0     211201 V06 (1.2-  0.7-)   211202 I52  0.0   0.1+
211201 V00  0.2+  0.1-    211202 033  0.1-  0.1+    211202 I52  0.0   0.4-
211201 V00  0.1-  0.2+    211202 033  0.2-  0.0     211202 I52  0.0   0.1-
211201 V00  0.1+  0.2-    211202 033  0.2+  0.4+    211202 I52  0.1+  0.0
211201 V06  0.7-  0.0     211202 033  0.2+  0.1+

Ephemeris:
2021 XG                  a,e,i = 0.96, 0.18, 4                   q = 0.7880
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 02    05 19 01.1 +42 03 59   0.1263  1.0843   134.2    41.0    25.5
...
2021 11 17    05 03 15.2 +43 20 48   0.07603 1.0543   148.5    29.3    24.0
...
2021 11 25    04 29 47.2 +42 37 38   0.05193 1.0353   157.3    21.6    22.9
...
2021 12 01    03 37 09.8 +39 10 49   0.03573 1.0197   159.5    19.8    22.0
2021 12 02    03 24 36.2 +37 59 46   0.03328 1.0170   158.3    21.0    21.9
2021 12 03    03 10 40.4 +36 30 54   0.03094 1.0143   156.4    22.9    21.8
...
2021 12 09    01 16 32.5 +17 02 08   0.02050 0.9974   126.8    52.2    21.7
...
2021 12 17    22 24 15.2 -24 49 53   0.02476 0.9737    64.5   114.1    24.5
...
2022 01 01    19 59 05.6 -41 46 57   0.06222 0.9270    24.4   154.1    31.3

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X42




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