[Iaude] MPEC Y68: 2021 JR57 [a=1.82,e=0.48,i=14.9,H=24.6]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 29 07:27:31 EST 2021


M.P.E.C. 2021-Y68                             Issued 2021 December 29, 12:26 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 JR57                                    


Observations:
     K21J57R* C2021 05 13.44281219 26 05.71 +57 11 15.5          20.50GVEY068G96
     K21J57R  C2021 05 13.44773319 26 29.80 +57 10 59.7          19.89GVEY068G96
     K21J57R  C2021 05 13.45265119 26 53.62 +57 10 42.5          19.95GVEY068G96
     K21J57R KC2021 05 13.46861219 28 11.81 +57 09 44.2                VEY068I52
     K21J57R KC2021 05 13.46917819 28 14.58 +57 09 42.2          19.78GVEY068I52
     K21J57R KC2021 05 14.44231320 57 45.58 +53 48 30.6          19.7 GVEY068G96
     K21J57R KC2021 05 14.44335620 57 51.29 +53 48 08.5          19.8 GVEY068G96
     K21J57R KC2021 05 14.44416720 57 55.78 +53 47 51.0          19.4 GVEY068G96

Observer details:
G96 Mt. Lemmon Survey.  Observers K. W. Wierzchos, 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, D. Parrott.  1.5-m
    reflector + 10K CCD, 1.5-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  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.  1.0-m
    reflector + CCD.

Orbital elements:
2021 JR57                                                Earth MOID = 0.0173 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  89.17555              (2000.0)            P               Q                  
n   0.39990801     Peri.  210.75270     -0.01973689     +0.97513363             
a   1.8245789      Node    58.96376     -0.85690818     +0.09724544             
e   0.4825210      Incl.   14.92872     -0.51509108     -0.19914249             
P   2.46           H   24.65          G   0.15           U   9                  
Residuals in seconds of arc
210513 G96  0.1-  0.2-    210513 I52  0.0   0.1-    210514 G96  0.1-  0.1+
210513 G96  0.7+  0.3+    210513 I52  0.0   0.0     210514 G96  0.1+  0.0
210513 G96  0.8-  0.0     210514 G96  0.0   0.1-

Ephemeris:
2021 JR57                a,e,i = 1.82, 0.48, 15                  q = 0.9442
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 29    00 43 38.7 -06 20 04   1.2106  1.9089   120.3    26.5    27.7
...
2021 12 14    00 50 01.9 -02 35 05   1.4507  1.9941   108.4    27.9    28.2
...
2021 12 22    00 55 36.6 -00 41 38   1.5855  2.0376   102.4    28.1    28.4
...
2021 12 28    01 00 33.9 +00 40 43   1.6885  2.0692    98.0    28.1    28.6
2021 12 29    01 01 26.9 +00 54 14   1.7059  2.0744    97.3    28.0    28.6
2021 12 30    01 02 20.8 +01 07 41   1.7232  2.0796    96.6    28.0    28.7
...
2022 01 05    01 08 03.0 +02 27 15   1.8278  2.1101    92.3    27.8    28.8
...
2022 01 13    01 16 23.4 +04 10 20   1.9680  2.1496    86.8    27.2    29.0
...
2022 01 28    01 33 51.0 +07 14 47   2.2293  2.2198    76.7    25.6    29.3

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-Y68




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