[Iaude] MPEC K28: 2020 JR2 [a=1.09,e=0.21,i=14.9,H=25.9]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun May 17 21:26:15 EDT 2020


M.P.E.C. 2020-K28                                  Issued 2020 May 18, 01:24 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 JR2                                    


Observations:
     K20J02R  C2020 05 14.55516717 38 32.150+45 39 24.51         20.5 GVEK028F51
     K20J02R* C2020 05 15.27033 17 27 28.81 +44 50 28.6          20.8 GVEK028G96
     K20J02R  C2020 05 15.27678 17 27 22.66 +44 50 07.9          20.9 GVEK028G96
     K20J02R  C2020 05 15.28190 17 27 17.90 +44 49 51.9          20.9 GVEK028G96
     K20J02R  C2020 05 15.28702 17 27 12.94 +44 49 34.4                VEK028G96
     K20J02R  C2020 05 15.37866 17 25 46.85 +44 44 23.4          20.8 GVEK028I52
     K20J02R  C2020 05 15.38035 17 25 45.18 +44 44 17.7          20.5 GVEK028I52
     K20J02R  C2020 05 15.38203 17 25 43.62 +44 44 11.6          20.9 GVEK028I52
     K20J02R  C2020 05 15.38371 17 25 41.97 +44 44 04.3          20.0 GVEK028I52
     K20J02R  C2020 05 16.05924 17 17 23.52 +44 03 51.1          21.7 VVEK028033
     K20J02R  C2020 05 16.06386 17 17 20.08 +44 03 34.9          22.1 VVEK028033
     K20J02R  C2020 05 16.06567 17 17 18.76 +44 03 29.7          22.1 VVEK028033
     K20J02R  C2020 05 16.33034 17 14 36.49 +43 50 31.1                VEK028I52
     K20J02R  C2020 05 16.33321 17 14 34.61 +43 50 23.8          20.3 GVEK028I52
     K20J02R  C2020 05 16.33608 17 14 32.34 +43 50 15.3                VEK028I52
     K20J02R  C2020 05 16.33895 17 14 30.56 +43 50 06.3          20.2 GVEK028I52
     K20J02R  C2020 05 16.56267717 12 06.748+43 39 15.23         21.1 GVEK028F51
     K20J02R  C2020 05 16.57735517 11 56.784+43 38 25.98         21.4 GVEK028F51
     K20J02R  C2020 05 17.40931 17 04 51.01 +42 59 08.8          21.4 GVEK028V06
     K20J02R  C2020 05 17.41132 17 04 49.92 +42 59 03.2          21.5 GVEK028V06
     K20J02R  C2020 05 17.41333 17 04 48.75 +42 58 57.4          21.0 GVEK028V06
     K20J02R  C2020 05 17.41534 17 04 48.00 +42 58 54.2                VEK028V06
     K20J02R  C2020 05 17.91635 17 01 18.77 +42 36 42.9          21.6 VVEK028033
     K20J02R  C2020 05 17.91918 17 01 17.49 +42 36 36.9          21.7 VVEK028033
     K20J02R  C2020 05 17.92201 17 01 16.18 +42 36 31.0          21.7 VVEK028033

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C. 
   Hoegner, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + 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.  1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  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.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers D. Rankin, D. C. Fuls.  
    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.
V06 Catalina Sky Survey-Kuiper.  Observer D. C. Fuls.  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.  1.55-m reflector + CCD.

Orbital elements:
2020 JR2                                                 Earth MOID = 0.0091 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Pan
M  75.09743              (2000.0)            P               Q
n   0.86435405     Peri.  282.12075     -0.84114607     -0.50601462
a   1.0914611      Node   227.82851     +0.53928182     -0.81130214
e   0.2116025      Incl.   14.92206     -0.04060059     -0.29281060
P   1.14           H   25.9           G   0.15           U   7
Residuals in seconds of arc
200514 F51  0.1+  0.0     200516 033  0.1+  0.3-    200517 V06  0.3+  0.2+
200515 G96  0.5+  0.5+    200516 033  0.1+  1.0-    200517 V06  0.5+  0.3+
200515 G96  0.6-  0.0     200516 033  0.3+  0.2-    200517 V06  0.2-  0.1+
200515 G96  0.1-  0.2+    200516 I52  1.4-  0.4-    200517 V06 (3.7+  2.6+)
200515 G96 (1.6-  1.1-)   200516 I52  0.5+  0.6+    200517 033  0.5-  0.2-
200515 I52  0.5+  0.1-    200516 I52 (1.8-  0.5+)   200517 033  0.1-  0.2-
200515 I52  0.4-  0.4+    200516 I52  1.2+  0.1-    200517 033  0.1-  0.1-
200515 I52  0.3-  0.4+    200516 F51  0.2+  0.0
200515 I52  1.2-  0.8-    200516 F51  0.2-  0.1+

Ephemeris:
2020 JR2                 a,e,i = 1.09, 0.21, 15                  q = 0.8605
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 04 18    03 41 59.4 -31 00 45   0.1174  0.9337    50.4   124.0    26.3
...
2020 05 03    03 01 41.8 -24 08 08   0.03507 0.9815    40.1   138.6    25.3
...
2020 05 11    20 09 03.2 +48 35 21   0.01550 1.0092    86.6    92.5    20.2
...
2020 05 17    17 08 15.6 +43 17 04   0.04518 1.0305   113.9    63.8    21.5
2020 05 18    17 00 38.8 +42 34 05   0.05050 1.0340   115.2    62.3    21.7
2020 05 19    16 54 34.6 +41 56 58   0.05585 1.0376   116.2    61.1    21.9
...
2020 05 25    16 34 12.2 +39 21 58   0.08818 1.0590   119.4    56.5    22.8
...
2020 06 02    16 23 09.8 +36 59 37   0.1315  1.0872   120.7    53.3    23.6
...
2020 06 17    16 16 57.4 +32 50 17   0.2131  1.1381   120.2    50.5    24.7

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-K28




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