[Iaude] MPEC X88: 2021 XN1 [a=1.95,e=0.50,i=8.0,H=26.6]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Dec 3 19:06:14 EST 2021


M.P.E.C. 2021-X88                              Issued 2021 December 4, 00:04 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 XN1                                    


Observations:
     K21X01N* C2021 12 03.24863403 19 07.35 -01 48 00.1          19.40GVEX088G96
     K21X01N  C2021 12 03.25414503 19 16.78 -01 44 23.9          19.36GVEX088G96
     K21X01N  C2021 12 03.25965303 19 26.24 -01 40 47.9          19.43GVEX088G96
     K21X01N  C2021 12 03.26516603 19 35.65 -01 37 12.1          19.52GVEX088G96
     K21X01N KC2021 12 03.32242403 21 13.59 -00 59 56.8          19.10GVEX088I52
     K21X01N KC2021 12 03.32281503 21 14.26 -00 59 41.6          19.56GVEX088I52
     K21X01N KC2021 12 03.32320703 21 14.93 -00 59 26.0          19.31GVEX088I52
     K21X01N KC2021 12 03.32359803 21 15.61 -00 59 11.3          19.33GVEX088I52
     K21X01N KC2021 12 03.37735503 22 48.24 -00 24 23.1          19.08GVEX088I52
     K21X01N KC2021 12 03.37774603 22 48.89 -00 24 08.0          19.15GVEX088I52
     K21X01N KC2021 12 03.37813703 22 49.60 -00 23 52.8          19.20GVEX088I52
     K21X01N KC2021 12 03.37852803 22 50.26 -00 23 37.6          19.92GVEX088I52
     K21X01N bC2021 12 03.83505103 36 50.22 +04 23 30.9          19.3 GVEX088L01
     K21X01N bC2021 12 03.83594503 36 51.70 +04 24 04.1          19.6 GVEX088L01
     K21X01N bC2021 12 03.83684403 36 53.20 +04 24 37.6          19.5 GVEX088L01
     K21X01N bC2021 12 03.83784003 36 54.88 +04 25 14.1          19.6 GVEX088L01
     K21X01N bC2021 12 03.83863503 36 56.21 +04 25 43.2          19.6 GVEX088L01
     K21X01N KC2021 12 03.89422603 38 28.23 +04 59 53.3          19.6 GVEX088104
     K21X01N KC2021 12 03.89756903 38 33.68 +05 01 55.2                VEX088104
     K21X01N KC2021 12 03.90425803 38 44.62 +05 06 00.2          19.3 GVEX088104
     K21X01N KC2021 12 03.93244 03 39 30.29 +05 23 09.0          19.2 GVEX088K83
     K21X01N KC2021 12 03.93975 03 39 42.12 +05 27 35.6          19.2 GVEX088K83

Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  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.  1.5-m reflector + 10K 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.
K83 Beppe Forti Astronomical Observatory, Montelupo.  Observers M. Tombelli,
    A. Mazzanti, E. Venticinque, M. Iozzi, G. Interrante, M. Lombardo.
    Measurers M. Tombelli, F. Bernardi, L. Grazzini.  0.40-m f/8 Ritchey-
    Chretien + CCD.
L01 Visnjan Observatory, Tican.  Observers K. Korlevic, M. Himelreich.
    Measurer K. Korlevic.  1.0-m f/2.9 reflector + CCD.

Orbital elements:
2021 XN1                                                 Earth MOID = 0.0192 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  25.09665              (2000.0)            P               Q                  
n   0.36248614     Peri.  331.72483     +0.69934262     -0.70208880             
a   1.9480874      Node    73.54186     +0.67933480     +0.59448528             
e   0.5001796      Incl.    8.03985     +0.22231536     +0.39199308             
P   2.72           H   26.63          G   0.15           U   7                  
Residuals in seconds of arc
211203 G96 (0.4-  0.9-)   211203 I52  0.2+  0.0     211203 L01  0.4+  0.7-
211203 G96  0.3-  0.5-    211203 I52  0.3-  0.0     211203 104  0.5-  0.1+
211203 G96  0.3+  0.1+    211203 I52  0.2+  0.0     211203 104  0.4-  0.4-
211203 G96  0.1+  0.2+    211203 I52  0.1-  0.0     211203 104  0.5+  0.1+
211203 I52  0.2+  0.8+    211203 L01  0.5-  0.5-    211203 K83  0.3+  0.3-
211203 I52  0.2+  0.7+    211203 L01  0.4-  0.3-    211203 K83  0.1+  0.6+
211203 I52  0.2+  1.1+    211203 L01  0.2-  0.0
211203 I52  0.3+  0.5+    211203 L01  0.3+  0.3-

Ephemeris:
2021 XN1                 a,e,i = 1.95, 0.50, 8                   q = 0.9737
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 04    20 58 53.9 -54 40 35   0.1479  0.9792    80.8    90.6    25.6
...
2021 11 19    22 07 54.2 -54 10 39   0.07514 0.9765    78.8    96.9    24.4
...
2021 11 27    00 06 09.3 -47 02 15   0.03738 0.9892    92.5    85.3    22.5
...
2021 12 03    03 11 23.1 -04 28 00   0.02263 1.0047   146.3    33.0    19.8
2021 12 04    03 41 26.9 +06 07 12   0.02374 1.0078   158.5    21.1    19.6
2021 12 05    04 08 34.3 +15 15 52   0.02595 1.0110   168.8    10.9    19.4
...
2021 12 11    05 51 22.7 +40 12 20   0.05078 1.0328   160.8    18.3    21.2
...
2021 12 19    06 43 00.4 +46 49 47   0.09294 1.0682   154.0    23.8    22.7
...
2022 01 03    07 09 34.1 +48 07 54   0.1817  1.1501   154.5    21.6    24.3

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X88




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