[Iaude] MPEC Y36: 2020 YJ [a=1.38,e=0.20,i=21.2,H=23.3]

Fri Dec 18 03:21:16 EST 2020

M.P.E.C. 2020-Y36                             Issued 2020 December 18, 08:20 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 YJ                                     


Observations:
     K20Y00J* C2020 12 16.33090307 41 32.87 +22 12 29.5          20.94GVEY036G96
     K20Y00J  C2020 12 16.33606907 41 32.07 +22 11 43.9          20.57GVEY036G96
     K20Y00J  C2020 12 16.34126007 41 31.28 +22 10 57.5          20.71GVEY036G96
     K20Y00J KC2020 12 16.40844407 41 21.04 +22 00 57.9          18.92GVEY036I52
     K20Y00J KC2020 12 16.41265107 41 20.50 +22 00 20.6          19.80GVEY036I52
     K20Y00J KC2020 12 16.41475507 41 20.16 +22 00 02.3          20.17GVEY036I52
     K20Y00J KC2020 12 17.30683807 39 26.60 +19 45 53.0          20.34GVEY036I52
     K20Y00J KC2020 12 17.30832107 39 26.39 +19 45 39.7          19.79GVEY036I52
     K20Y00J KC2020 12 17.30979907 39 26.16 +19 45 26.3          19.80GVEY036I52
     K20Y00J KC2020 12 17.31127907 39 25.96 +19 45 13.3          20.14GVEY036I52
     K20Y00J KC2020 12 17.39764 07 39 11.83 +19 32 00.7          20.6 GVEY036H36
     K20Y00J KC2020 12 17.40474 07 39 10.76 +19 30 57.7          20.1 GVEY036H36
     K20Y00J KC2020 12 17.42651 07 39 07.47 +19 27 35.9          20.5 GVEY036H36
     K20Y00J 1C2020 12 17.88299 07 38 11.12 +18 17 40.1          21.4 VVEY036033
     K20Y00J 1C2020 12 17.88450 07 38 10.91 +18 17 26.3          20.9 VVEY036033
     K20Y00J 1C2020 12 17.88600 07 38 10.70 +18 17 12.4          21.1 VVEY036033
     K20Y00J KC2020 12 18.23659907 37 24.67 +17 23 38.3          20.26GVEY036I52
     K20Y00J KC2020 12 18.23783107 37 24.47 +17 23 27.4          20.04GVEY036I52
     K20Y00J KC2020 12 18.27002507 37 18.33 +17 18 28.2          20.4 VuEY036H21
     K20Y00J KC2020 12 18.27293607 37 17.88 +17 18 01.1          20.4 VuEY036H21
     K20Y00J KC2020 12 18.27584307 37 17.43 +17 17 34.4          20.2 VuEY036H21

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, U.
    Laux, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + 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.
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.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers D. C. Fuls, 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.  1.0-m
    reflector + CCD.

Orbital elements:
2020 YJ                                                  Earth MOID = 0.1301 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 354.83282              (2000.0)            P               Q                  
n   0.60543932     Peri.  188.16209     -0.10511303     -0.92612452             
a   1.3838498      Node   268.42776     +0.93164435     +0.03571419             
e   0.1962642      Incl.   21.24849     +0.34783626     -0.37552346             
P   1.63           H   23.34          G   0.15           U   8                  
Residuals in seconds of arc
201216 G96  0.4+  0.1+    201217 I52  0.1-  0.1+    201218 I52  0.2+  0.2-
201216 G96  0.1+  0.3+    201217 I52  0.2+  0.5+    201218 I52  0.1-  0.1+
201216 G96  0.1-  0.0+    201217 H36  0.1-  0.1+    201218 H21  0.2+  0.2+
201216 I52 (1.2-  0.8-)   201217 H36 (0.1-  2.1+)   201218 H21  0.2+  0.2+
201216 I52  0.2+  0.4-    201217 H36  0.2-  0.3-    201218 H21  0.2+  0.0-
201216 I52  0.1-  0.1+    201217 033  0.3-  0.2-    201218 H21  0.2+  0.0-
201217 I52  0.2-  0.0-    201217 033  0.2-  0.2-    201218 H21  0.1+  0.1+
201217 I52  0.1-  0.1+    201217 033  0.2-  0.4-

Ephemeris:
2020 YJ                  a,e,i = 1.38, 0.20, 21                  q = 1.1122
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 18    08 00 32.4 +62 03 29   0.2768  1.1440   117.8    49.9    22.7
...
2020 12 03    08 02 45.1 +47 59 34   0.1933  1.1240   131.9    40.8    21.6
...
2020 12 11    07 51 59.2 +34 22 18   0.1598  1.1172   143.5    31.6    20.9
...
2020 12 17    07 40 05.1 +20 32 40   0.1449  1.1140   151.9    24.6    20.5
2020 12 18    07 37 53.4 +18 00 30   0.1435  1.1136   152.8    23.8    20.5
2020 12 19    07 35 39.3 +15 26 02   0.1426  1.1133   153.5    23.3    20.4
...
2020 12 25    07 21 46.2 -00 00 57   0.1441  1.1123   151.5    25.0    20.5
...
2021 01 02    07 03 41.3 -17 12 09   0.1641  1.1136   139.7    34.8    21.1
...
2021 01 17    06 37 55.9 -34 18 21   0.2322  1.1239   121.9    48.0    22.2

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Y36