[Iaude] MPEC Y78: 2020 YA2 [a=0.81,e=0.24,i=2.6,H=28.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Dec 21 13:49:08 EST 2020


M.P.E.C. 2020-Y78                             Issued 2020 December 21, 18:47 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 YA2                                    


Observations:
     K20Y02A* C2020 12 20.24009004 20 52.65 +08 17 40.3          20.64GVEY078G96
     K20Y02A  C2020 12 20.24576904 20 42.95 +08 16 59.5          20.20GVEY078G96
     K20Y02A  C2020 12 20.25142404 20 33.39 +08 16 20.5          20.31GVEY078G96
     K20Y02A  C2020 12 20.25708104 20 23.81 +08 15 41.0          20.81GVEY078G96
     K20Y02A KC2020 12 20.37741204 17 06.42 +08 01 29.2          20.13GVEY078I52
     K20Y02A KC2020 12 20.37890104 17 04.05 +08 01 17.8          20.24GVEY078I52
     K20Y02A KC2020 12 20.38186904 16 59.39 +08 00 57.2          20.50GVEY078I52
     K20Y02A KC2020 12 21.10840504 01 16.37 +06 43 19.8          20.7 VuEY078H21
     K20Y02A KC2020 12 21.10986204 01 14.38 +06 43 11.2          20.6 VuEY078H21
     K20Y02A KC2020 12 21.11132004 01 12.36 +06 43 02.6          20.9 VuEY078H21
     K20Y02A KC2020 12 21.13458204 00 50.50 +06 41 30.5          20.27GVEY078I52
     K20Y02A KC2020 12 21.13655504 00 47.82 +06 41 19.2          20.67GVEY078I52
     K20Y02A KC2020 12 21.13852504 00 45.14 +06 41 07.8          21.20GVEY078I52
     K20Y02A KC2020 12 21.14049304 00 42.44 +06 40 56.3          20.14GVEY078I52

Observer details:
G96 Mt. Lemmon Survey.  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, T. A. Pruyne, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.81-m f/4.0
    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.

Orbital elements:
2020 YA2                                                 Earth MOID = 0.0042 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pike                    
M 162.08526              (2000.0)            P               Q                  
n   1.35527912     Peri.   13.51270     +0.11649002     +0.99219896             
a   0.8086928      Node   263.19026     -0.91534130     +0.08990211             
e   0.2396976      Incl.    2.56282     -0.38546126     +0.08636449             
P   0.73           H   28.21          G   0.15           U   8                  
Residuals in seconds of arc
201220 G96 (1.0+  0.6+)   201220 I52  0.2-  0.5-    201221 I52  0.3-  0.2+
201220 G96  0.1-  0.5-    201220 I52  0.0-  0.1+    201221 I52  0.1-  0.2+
201220 G96  0.2+  0.2+    201221 H21  0.0-  0.2-    201221 I52  0.2+  0.1+
201220 G96  0.1-  0.3+    201221 H21  0.3+  0.2-    201221 I52  0.1+  0.1-
201220 I52  0.2+  0.3+    201221 H21  0.1+  0.3-

Ephemeris:
2020 YA2                 a,e,i = 0.81, 0.24, 3                   q = 0.6149
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 21    12 52 01.2 +09 09 37   0.06583 0.9486    51.8   125.0    27.4
...
2020 12 06    11 49 24.2 +13 43 16   0.02897 0.9818    82.1    96.2    23.9
...
2020 12 14    08 52 39.2 +19 22 17   0.01321 0.9932   131.9    47.5    20.6
...
2020 12 20    04 27 05.9 +08 49 52   0.01654 0.9988   154.9    24.7    20.4
2020 12 21    04 03 24.3 +06 58 30   0.01849 0.9995   148.2    31.3    20.9
2020 12 22    03 44 37.0 +05 26 41   0.02060 1.0001   142.5    36.8    21.3
...
2020 12 28    02 46 21.2 +00 32 31   0.03501 1.0022   121.7    56.6    23.0
...
2021 01 05    02 20 38.0 -01 32 57   0.05536 1.0010   107.2    69.8    24.4
...
2021 01 20    02 07 38.8 -02 25 24   0.09177 0.9867    89.1    85.6    26.0

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Y78




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