[Iaude] MPEC Y147: 2020 YT4 [a=2.41,e=0.73,i=10.6,H=24.3]

Mon Dec 28 10:06:07 EST 2020

M.P.E.C. 2020-Y147                            Issued 2020 December 28, 15:04 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

                                    2020 YT4                                    


Observations:
     K20Y04T  C2020 12 23.42220509 28 37.529+44 32 17.74         20.30GVEY147F51
     K20Y04T  C2020 12 23.45207609 27 39.314+44 27 56.89         20.76GVEY147F51
     K20Y04T  C2020 12 23.46503809 27 14.107+44 26 02.96         20.37GVEY147F51
     K20Y04T  C2020 12 23.55455909 24 21.224+44 12 41.85         20.44GVEY147F51
     K20Y04T  C2020 12 23.58178109 23 29.280+44 08 33.22         20.06GVEY147F51
     K20Y04T* C2020 12 25.55887808 34 54.732+39 09 21.50         20.29wUEY147F51
     K20Y04T  C2020 12 25.58031908 34 29.009+39 06 14.32         20.38wUEY147F51
     K20Y04T  C2020 12 25.59119108 34 16.026+39 04 39.17         20.51wUEY147F51
     K20Y04T KC2020 12 26.06449708 25 42.45 +37 57 12.7          20.8 GVEY147J95
     K20Y04T KC2020 12 26.07973008 25 26.31 +37 55 07.9          20.7 GVEY147J95
     K20Y04T HC2020 12 26.11842 08 24 44.58 +37 49 53.7                VEY147204
     K20Y04T KC2020 12 26.13274 08 24 29.54 +37 47 54.5          20.9 GVEY147204
     K20Y04T  C2020 12 27.24516808 07 45.83 +35 23 36.0          21.43GVEY147G96
     K20Y04T  C2020 12 27.25036608 07 41.51 +35 22 58.2          20.53GVEY147G96
     K20Y04T  C2020 12 27.25556108 07 37.17 +35 22 20.9          20.75GVEY147G96
     K20Y04T  C2020 12 27.26076808 07 32.96 +35 21 44.3          20.56GVEY147G96
     K20Y04T bC2020 12 27.78417008 00 54.24 +34 19 03.6          21.1 GVEY147L01
     K20Y04T bC2020 12 27.79049308 00 49.71 +34 18 20.9          20.7 GVEY147L01

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
    Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau, J. Fairlamb, H.
    Flewelling, C.-C. Lin, E. Magnier.  1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer T. A. Pruyne.  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.  1.5-m reflector + 10K CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
    + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.

Orbital elements:
2020 YT4                                                 Earth MOID = 0.0085 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pan                     
M  11.06045              (2000.0)            P               Q                  
n   0.26384569     Peri.   84.16473     +0.96730730     -0.18174915             
a   2.4075171      Node   286.20962     +0.08797071     +0.89458860             
e   0.7288752      Incl.   10.61418     +0.23786074     +0.40826275             
P   3.74           H   24.34          G   0.15           U   8                  
Residuals in seconds of arc
201223 F51  0.1-  0.1-    201225 F51  0.0+  0.0+    201227 G96  0.0+  0.3+
201223 F51  0.1+  0.1+    201225 F51  0.0-  0.0-    201227 G96  0.2-  0.3-
201223 F51  0.1+  0.1+    201226 J95  0.5-  0.7-    201227 G96  0.6-  0.3-
201223 F51  0.3-  0.0+    201226 J95  0.1-  0.2+    201227 G96  0.6+  0.4+
201223 F51  0.0-  0.0-    201226 204  0.1+  0.3-    201227 L01  0.4-  0.5+
201225 F51  0.1+  0.1+    201226 204  0.1+  0.3-    201227 L01  0.3+  0.4+

Ephemeris:
2020 YT4                 a,e,i = 2.41, 0.73, 11                  q = 0.6527
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 28    17 29 36.1 +00 05 46   0.2559  0.7697    27.9   143.1    28.1
...
2020 12 13    16 08 01.4 +23 54 05   0.09770 0.9251    50.3   125.0    24.4
...
2020 12 21    11 09 55.6 +49 06 36   0.07359 1.0171   115.0    61.2    20.9
...
2020 12 27    08 11 05.3 +35 54 14   0.1149  1.0875   153.6    23.7    20.9
2020 12 28    07 58 17.8 +33 55 16   0.1243  1.0993   157.6    20.0    21.0
2020 12 29    07 47 45.3 +32 09 15   0.1341  1.1111   161.1    16.6    21.1
...
2021 01 04    07 10 43.5 +24 58 24   0.1989  1.1818   176.5     2.9    21.5
...
2021 01 12    06 50 20.4 +20 19 55   0.2958  1.2756   169.8     7.9    22.8
...
2021 01 27    06 39 14.6 +16 54 40   0.5029  1.4476   151.8    18.7    24.6

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Y147