[Iaude] MPEC Y92: 2020 YS2 [a=0.96,e=0.08,i=2.7,H=31.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Dec 22 03:35:45 EST 2020


M.P.E.C. 2020-Y92                             Issued 2020 December 22, 08:34 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

                                    2020 YS2                                    


Observations:
     K20Y02S* C2020 12 21.45957106 32 05.79 +03 02 17.9          18.64cVEY092T08
     K20Y02S  C2020 12 21.46308006 32 11.80 +03 03 43.0          19.38cVEY092T08
     K20Y02S  C2020 12 21.49493806 33 06.07 +03 16 18.6          19.01cVEY092T08
     K20Y02S  C2020 12 21.50184706 33 17.64 +03 18 55.5          19.64cVEY092T08
     K20Y02S  C2020 12 21.63569 06 37 24.25 +04 03 51.3          18.9 cVEY092T08
     K20Y02S  C2020 12 21.63661 06 37 26.23 +04 04 07.2          19.0 cVEY092T08
     K20Y02S  C2020 12 21.63707 06 37 27.14 +04 04 17.9          18.8 cVEY092T08
     K20Y02S  C2020 12 21.63753 06 37 28.20 +04 04 25.2          18.9 cVEY092T08
     K20Y02S mC2020 12 22.17502106 59 48.85 +06 02 06.3          19.70GVEY092I52
     K20Y02S mC2020 12 22.17544106 59 49.23 +06 02 11.5          19.35GVEY092I52
     K20Y02S mC2020 12 22.17586206 59 49.61 +06 02 15.9          19.89GVEY092I52
     K20Y02S mC2020 12 22.17628206 59 50.00 +06 02 21.2          19.89GVEY092I52
     K20Y02S KC2020 12 22.25753906 59 54.47 +06 13 41.4          19.2 VuEY092H21
     K20Y02S KC2020 12 22.26151306 59 56.52 +06 14 21.4          19.1 VuEY092H21
     K20Y02S KC2020 12 22.26374206 59 57.64 +06 14 44.0          19.4 VuEY092H21

Observer details:
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    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, T. A.
    Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
    reflector + CCD.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, J. Tonry, A. Heinze, H.
    Weiland.  Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, H.
    Flewelling, A. Fitzsimmons, J. Robinson, N. Erasmus.  0.5-m reflector +
    CCD, 0.5-m f/2.0 Schmidt + CCD.

Orbital elements:
2020 YS2                                                 Earth MOID = 0.0004 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M  97.60109              (2000.0)            P               Q                  
n   1.04114191     Peri.   70.82602     +0.93352321     +0.35534557             
a   0.9641163      Node   268.33655     -0.34422034     +0.85126379             
e   0.0757574      Incl.    2.72837     -0.10023362     +0.38610813             
P   0.95           H   31.06          G   0.15           U   6                  
Residuals in seconds of arc
201221 T08  0.7+  0.7+    201221 T08  0.6+  1.3-    201222 I52  0.1-  0.4-
201221 T08  0.1-  0.1-    201221 T08  0.3-  1.1+    201222 I52  0.0-  0.0-
201221 T08  0.1+  0.6+    201221 T08  1.0+  0.2+    201222 H21  0.0-  0.1+
201221 T08  1.6-  0.4-    201222 I52  0.2+  0.0-    201222 H21  0.0+  0.0-
201221 T08  0.4-  1.0-    201222 I52  0.0+  0.2+    201222 H21  0.2-  0.2+

Ephemeris:
2020 YS2                 a,e,i = 0.96, 0.08, 3                   q = 0.8911
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 22    17 02 21.4 +04 22 48   0.04654 0.9477    30.2   148.4    32.4
...
2020 12 07    17 08 01.4 +06 16 33   0.02137 0.9665    29.0   150.3    31.1
...
2020 12 15    17 19 42.7 +05 22 13   0.0087800.9766    28.7   151.0    29.4
...
2020 12 21    05 55 06.6 -01 10 44   0.0015140.9851   155.4    24.6    18.1
2020 12 22    06 53 10.3 +05 50 48   0.0031650.9866   158.4    21.5    19.6
2020 12 23    07 11 44.9 +08 01 05   0.0047930.9881   157.9    22.0    20.5
...
2020 12 29    07 36 27.3 +10 55 22   0.01434 0.9968   160.4    19.3    22.8
...
2021 01 06    07 41 05.2 +11 53 34   0.02720 1.0098   166.7    12.9    24.0
...
2021 01 21    07 41 19.5 +13 15 02   0.05419 1.0375   170.0     9.5    25.4

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Y92




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