[Iaude] MPEC Y65: 2021 YN [a=1.64,e=0.69,i=7.0,H=21.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Dec 28 17:41:10 EST 2021


M.P.E.C. 2021-Y65                             Issued 2021 December 28, 22:39 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 YN                                     


Observations:
     K21Y00N* C2021 12 26.73355607 43 26.42 +25 08 34.5          19.5 RVEY065D29
     K21Y00N  C2021 12 26.76802607 43 23.38 +25 09 28.6          20.1 RVEY065D29
     K21Y00N  C2021 12 26.80249607 43 20.33 +25 10 22.1          19.9 RVEY065D29
     K21Y00N  C2021 12 27.32777607 42 39.56 +25 24 37.5          19.55GVEY065I52
     K21Y00N  C2021 12 27.32992707 42 39.33 +25 24 40.8          19.76GVEY065I52
     K21Y00N  C2021 12 27.33069407 42 39.28 +25 24 42.0          19.88GVEY065I52
     K21Y00N  C2021 12 27.56232 07 42 21.04 +25 30 56.5          19.5 GVEY065N88
     K21Y00N  C2021 12 27.73964607 42 04.15 +25 36 12.6          19.4 RVEY065D29
     K21Y00N  C2021 12 27.75308 07 42 03.69 +25 36 29.9          19.7 GVEY065N88
     K21Y00N  C2021 12 27.75378807 42 02.76 +25 36 36.8          19.7 RVEY065D29
     K21Y00N  C2021 12 27.75743 07 42 03.27 +25 36 37.6          19.6 GVEY065N88
     K21Y00N  C2021 12 27.76792907 42 01.39 +25 37 00.8          19.6 RVEY065D29
     K21Y00N 5C2021 12 27.79536 07 42 00.65 +25 37 41.0          19.6 GVEY065119
     K21Y00N 5C2021 12 27.80043 07 42 00.18 +25 37 50.0          19.6 GVEY065119
     K21Y00N 5C2021 12 27.80550 07 41 59.69 +25 37 59.0          19.9 GVEY065119
     K21Y00N 5C2021 12 27.81057 07 41 59.23 +25 38 07.8          20.2 GVEY065119
     K21Y00N 5C2021 12 27.81564 07 41 58.73 +25 38 17.1          19.6 GVEY065119
     K21Y00N  C2021 12 27.83186 07 41 56.09 +25 38 46.5          19.1 GVEY065N88
     K21Y00N  C2021 12 27.83627 07 41 55.65 +25 38 53.8          19.4 GVEY065N88
     K21Y00N 1C2021 12 27.84072 07 41 56.67 +25 38 53.6          20.0 VVEY065033
     K21Y00N 1C2021 12 27.84106 07 41 56.63 +25 38 54.4          19.8 VVEY065033
     K21Y00N 1C2021 12 27.84140 07 41 56.60 +25 38 54.9          20.1 VVEY065033
     K21Y00N 1C2021 12 27.84190 07 41 56.56 +25 38 55.8          20.0 VVEY065033
     K21Y00N KC2021 12 28.89781307 40 17.71 +26 10 49.6          19.2 GVEY065B49
     K21Y00N KC2021 12 28.89962407 40 17.51 +26 10 52.9          19.3 GVEY065B49

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.
119 Abastuman.  Observer R. Innasaridze.  Measurer L. Elenin.
B49 Paus Observatory, Sabadell.  Observer J. Camarasa.  0.30-m f/4.0 reflector
    + CCD.
D29 Purple Mountain Observatory, XuYi Station.  Observers H. B. Zhao, B. Li,
    G. Zhaori, R. Q. Hong, L. F. Hu.  Measurers H. B. Zhao, B. Li, H. Lu, G.
    Zhaori, Z. J. Xu.  1.04-m f/1.8 Schmidt + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  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.
N88 Xingming Observatory #3, Nanshan.  Observers Z.-J. Xu, X. Gao.  Measurer
    Z.-J. Xu.  0.6-m f/8 Ritchey-Chretien + CCD.

Orbital elements:
2021 YN                                                  Earth MOID = 0.0530 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M 337.27256              (2000.0)            P               Q                  
n   0.46820731     Peri.  127.04393     -0.77448417     +0.62082879             
a   1.6425197      Node    91.65946     -0.61210469     -0.68700417             
e   0.6905143      Incl.    6.97773     -0.15969383     -0.37762003             
P   2.11           H   21.14          G   0.15           U   9                  
Residuals in seconds of arc
211226 D29  0.3+  0.3+    211227 D29  0.0   0.1+    211227 N88  0.3+  0.0
211226 D29  0.1-  0.1+    211227 N88  0.1+  0.1+    211227 033  0.0   0.2-
211226 D29  0.8-  0.4-    211227 D29  0.2+  0.0     211227 033  0.1-  0.0
211227 I52  0.2+  0.2+    211227 119  0.0   0.2+    211227 033  0.1-  0.1-
211227 I52  0.2-  0.1-    211227 119  0.1+  0.2+    211227 033  0.0   0.1-
211227 I52  0.1+  0.1-    211227 119  0.1-  0.2+    211228 B49  0.1+  0.1+
211227 N88  0.2+  0.2-    211227 119  0.2+  0.1+    211228 B49  0.1-  0.1-
211227 D29  0.1+  0.1+    211227 119  0.1-  0.4+
211227 N88  0.1+  0.0     211227 N88  0.4+  0.3+

Ephemeris:
2021 YN                  a,e,i = 1.64, 0.69, 7                   q = 0.5083
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 28    07 45 56.4 +19 58 07   0.7628  1.5938   130.9    27.9    22.8
...
2021 12 13    07 50 45.5 +21 23 22   0.5221  1.4445   145.2    22.9    21.6
...
2021 12 21    07 48 35.9 +23 06 32   0.4049  1.3596   154.1    18.4    20.8
...
2021 12 27    07 43 05.7 +25 15 43   0.3226  1.2935   161.5    13.9    20.0
2021 12 28    07 41 41.4 +25 43 46   0.3094  1.2822   162.8    13.1    19.9
2021 12 29    07 40 06.2 +26 14 13   0.2963  1.2710   164.1    12.2    19.8
...
2022 01 04    07 25 11.7 +30 24 37   0.2213  1.2020   170.2     8.0    18.8
...
2022 01 12    06 30 03.7 +41 36 16   0.1334  1.1068   156.2    21.1    18.0
...
2022 01 27    22 17 59.3 +25 08 41   0.1075  0.9196    50.2   124.6    21.3

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-Y65




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