[Iaude] MPEC Y140: 2020 YO4 [a=1.56,e=0.50,i=7.0,H=24.5]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Dec 26 21:32:45 EST 2020


M.P.E.C. 2020-Y140                            Issued 2020 December 27, 02:31 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 YO4                                    


Observations:
     K20Y04O  C2020 12 23.42089 08 14 16.49 +14 36 22.5          21.5 GVEY140G96
     K20Y04O  C2020 12 23.42599 08 14 17.69 +14 35 58.3                VEY140G96
     K20Y04O  C2020 12 23.43111 08 14 19.02 +14 35 32.5                VEY140G96
     K20Y04O* C2020 12 24.59679708 19 53.229+12 53 48.31         21.53wUEY140F51
     K20Y04O  C2020 12 24.60738708 19 56.199+12 52 48.26         21.32wUEY140F51
     K20Y04O  C2020 12 24.62859308 20 02.199+12 50 47.77         21.30wUEY140F51
     K20Y04O |C2020 12 25.27783 08 23 28.35 +11 48 29.2          21.2 GVEY140807
     K20Y04O |C2020 12 25.28220 08 23 29.66 +11 48 02.6          21.4 GVEY140807
     K20Y04O |C2020 12 25.28677 08 23 31.03 +11 47 34.9          21.4 GVEY140807
     K20Y04O KC2020 12 26.44193 08 30 05.16 +09 40 36.8          21.4 RoEY140291
     K20Y04O KC2020 12 26.44683 08 30 06.80 +09 40 02.3          21.3 RoEY140291
     K20Y04O KC2020 12 26.45176 08 30 08.48 +09 39 27.4          21.2 RoEY140291
     K20Y04O bC2020 12 27.01519208 33 40.96 +08 30 57.6          21.6 GVEY140L01
     K20Y04O bC2020 12 27.01932708 33 42.44 +08 30 27.1          21.4 GVEY140L01
     K20Y04O bC2020 12 27.02063008 33 42.89 +08 30 16.9          21.6 GVEY140L01

Observer details:
291 LPL/Spacewatch II.  Observer R. A. Mastaler.  1.8-m f/2.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    1.00-m f/10.0 astrograph + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
    Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
    Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
    R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer D. Rankin.  Measurers D. Rankin, B. Gray, F.
    C. Shelly.  1.5-m reflector + 10K CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.

Orbital elements:
2020 YO4                                                 Earth MOID = 0.0418 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M 325.58390              (2000.0)            P               Q
n   0.50620376     Peri.  268.15550     -0.99214293     -0.02984044
a   1.5592622      Node   270.12085     +0.07591567     -0.91551088
e   0.4954851      Incl.    6.97862     -0.09944452     -0.40118496
P   1.95           H   24.5           G   0.15           U   8
Residuals in seconds of arc
201223 G96  0.3+  0.7-    201224 F51  0.4+  0.1-    201226 291  0.3+  0.1-
201223 G96  0.8-  0.2+    201225 807  0.1-  0.2+    201226 291  0.6+  0.3-
201223 G96  0.2-  0.4-    201225 807  0.0   0.2+    201227 L01  0.2-  0.3-
201224 F51  0.2-  0.2+    201225 807  0.2+  0.3+    201227 L01  0.4-  0.3+
201224 F51  0.1-  0.1+    201226 291  0.5+  0.0     201227 L01  0.8-  0.1-

Ephemeris:
2020 YO4                 a,e,i = 1.56, 0.50, 7                   q = 0.7867
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 27    07 09 58.9 +28 05 03   0.3977  1.3136   139.1    29.4    24.4
...
2020 12 12    07 38 21.5 +23 50 20   0.2428  1.1968   147.7    26.1    23.0
...
2020 12 20    08 00 40.1 +18 30 00   0.1701  1.1339   149.7    25.9    22.1
...
2020 12 26    08 27 29.4 +10 31 23   0.1215  1.0872   146.8    29.7    21.4
2020 12 27    08 33 34.0 +08 33 44   0.1141  1.0794   145.6    31.0    21.3
2020 12 28    08 40 18.9 +06 20 22   0.1070  1.0717   144.0    32.7    21.2
...
2021 01 03    09 43 38.4 -14 50 56   0.07321 1.0260   124.0    52.6    20.8
...
2021 01 11    13 13 15.9 -51 03 20   0.07519 0.9675    75.6   100.1    22.4
...
2021 01 26    17 33 13.4 -47 19 40   0.1776  0.8715    46.4   125.2    25.7

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Y140




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