[Iaude] MPEC J83: 2021 JC2 [a=2.50,e=0.57,i=7.5,H=24.5]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri May 7 02:44:31 EDT 2021


M.P.E.C. 2021-J83                                   Issued 2021 May 7, 06:43 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

                                    2021 JC2                                    


Observations:
     K21J02C* C2021 05 05.22547 14 32 23.33 +08 48 09.2          20.6 GVEJ083U68
     K21J02C  C2021 05 05.22881 14 32 25.49 +08 48 16.8          20.6 GVEJ083U68
     K21J02C  C2021 05 05.25574 14 32 42.83 +08 49 11.2          20.6 GVEJ083U68
     K21J02C  C2021 05 05.25908 14 32 45.03 +08 49 18.2          20.6 GVEJ083U68
     K21J02C KC2021 05 06.22779 14 43 27.58 +09 19 56.2                oEJ083691
     K21J02C KC2021 05 06.23205 14 43 30.24 +09 20 04.2          20.3 RoEJ083691
     K21J02C KC2021 05 06.23630 14 43 32.82 +09 20 11.7          20.4 RoEJ083691
     K21J02C KC2021 05 07.21268514 53 54.68 +09 47 29.1                VEJ083I52
     K21J02C KC2021 05 07.21394314 53 55.62 +09 47 32.2          20.67GVEJ083I52
     K21J02C KC2021 05 07.21520414 53 56.39 +09 47 33.7          19.96GVEJ083I52
     K21J02C KC2021 05 07.21646314 53 57.13 +09 47 35.9          19.91GVEJ083I52
     K21J02C KC2021 05 07.22185214 54 00.32 +09 47 44.1          19.71GVEJ083I52
     K21J02C KC2021 05 07.22311314 54 01.08 +09 47 46.4          19.86GVEJ083I52
     K21J02C KC2021 05 07.22437114 54 01.85 +09 47 48.6          20.25GVEJ083I52
     K21J02C KC2021 05 07.22563114 54 02.55 +09 47 51.1          20.15GVEJ083I52

Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer M. T. Read.  0.9-m
    f/3 reflector + 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.
U68 JPL SynTrack Robotic Telescope, Auberry.  Observers N. Saini, C. Zhai, R.
    Trahan, M. Zhan, M. Shao.  0.28-m f/2.2 Schmidt + CCD.

Orbital elements:
2021 JC2                                                 Earth MOID = 0.0716 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 327.87379              (2000.0)            P               Q                  
n   0.24941577     Peri.    1.85855     -0.84385145     +0.53248025             
a   2.4995017      Node   210.60731     -0.49396125     -0.81906955             
e   0.5687346      Incl.    7.46825     -0.20956384     -0.21351781             
P   3.95           H   24.52          G   0.15           U   9                  
Residuals in seconds of arc
210505 U68  0.1-  0.5-    210506 691  0.3+  0.2+    210507 I52  0.4+  0.0
210505 U68  0.1-  0.2+    210506 691  0.2-  0.0     210507 I52  0.3+  0.5-
210505 U68  0.3-  0.1-    210507 I52  2.8-  0.6-    210507 I52  0.5+  0.2-
210505 U68  0.5+  0.1+    210507 I52  0.1+  0.4+    210507 I52  0.9+  0.2-
210506 691  0.2-  0.0     210507 I52  0.5+  0.1-    210507 I52  0.2+  0.3+

Ephemeris:
2021 JC2                 a,e,i = 2.50, 0.57, 7                   q = 1.0779
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 07    10 14 44.0 -10 03 14   0.1290  1.1005   138.3    37.3    21.8
...
2021 04 22    11 55 21.2 -01 42 25   0.08559 1.0785   147.8    29.8    20.6
...
2021 04 30    13 29 18.9 +05 10 04   0.07938 1.0799   155.3    23.0    20.3
...
2021 05 06    14 40 55.7 +09 13 43   0.08607 1.0869   154.2    23.8    20.5
2021 05 07    14 51 38.2 +09 42 29   0.08806 1.0886   153.5    24.4    20.6
2021 05 08    15 01 52.5 +10 07 45   0.09027 1.0904   152.9    25.0    20.6
...
2021 05 14    15 52 55.9 +11 34 48   0.1074  1.1040   149.0    28.2    21.1
...
2021 05 22    16 37 01.9 +11 34 25   0.1375  1.1294   146.5    29.7    21.8
...
2021 06 06    17 17 10.3 +09 02 33   0.2080  1.1961   147.9    26.8    22.7

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J83




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