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  • MPEC 2021-J145 : 2021 JS3

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    M.P.E.C. 2021-J145                                 Issued 2021 May 10, 10:53 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2021 JS3                                 
    
    
    Observations:
         K21J03S* C2021 05 08.51414015 59 34.470+04 59 46.75         19.58wUEJ145F51
         K21J03S  C2021 05 08.52584715 59 54.014+05 03 05.64         19.68wUEJ145F51
         K21J03S  C2021 05 08.54923516 00 32.991+05 09 40.89         19.92wUEJ145F51
         K21J03S KC2021 05 08.77163 16 07 18.19 +06 11 01.2          19.8 GVEJ145N82
         K21J03S KC2021 05 08.78354 16 07 38.72 +06 14 26.1          19.2 GVEJ145N82
         K21J03S KC2021 05 08.89593516 11 08.93 +06 46 48.7          19.7 GVEJ145203
         K21J03S hC2021 05 08.91089616 11 34.43 +06 51 09.0          19.7 GVEJ145L01
         K21J03S KC2021 05 08.91097216 11 34.52 +06 51 08.7          19.6 GVEJ145595
         K21J03S hC2021 05 08.91169316 11 35.81 +06 51 22.9          20.0 GVEJ145L01
         K21J03S hC2021 05 08.91408516 11 40.06 +06 52 04.4          19.7 GVEJ145L01
         K21J03S hC2021 05 08.91508316 11 41.81 +06 52 21.8          19.6 GVEJ145L01
         K21J03S hC2021 05 08.91567816 11 42.85 +06 52 31.9          19.7 GVEJ145L01
         K21J03S KC2021 05 08.91588416 11 43.20 +06 52 33.4          19.3 GVEJ145595
         K21J03S hC2021 05 08.91687116 11 44.97 +06 52 53.2          20.0 GVEJ145L01
         K21J03S KC2021 05 08.91872016 11 48.99 +06 53 23.1          19.7 GVEJ145203
         K21J03S KC2021 05 08.92079916 11 51.81 +06 53 57.9          19.3 GVEJ145595
         K21J03S KC2021 05 08.92571616 12 00.38 +06 55 24.0                VEJ145595
         K21J03S KC2021 05 08.94057116 12 26.41 +06 59 40.9          19.8 GVEJ145595
         K21J03S KC2021 05 09.04371716 15 27.84 +07 29 30.9          19.2 GVEJ145104
         K21J03S KC2021 05 09.04793416 15 35.24 +07 30 44.0          19.2 GVEJ145104
         K21J03S KC2021 05 09.05004816 15 38.93 +07 31 20.8          19.2 GVEJ145104
         K21J03S KC2021 05 09.05341 16 15 43.21 +07 32 03.4          19.7 GVEJ145K88
         K21J03S KC2021 05 09.05514 16 15 46.29 +07 32 34.4          19.2 GVEJ145K88
         K21J03S KC2021 05 09.23341216 21 29.90 +08 24 47.5          19.9 VqEJ145858
         K21J03S KC2021 05 09.23759416 21 37.38 +08 26 00.6          19.9 VqEJ145858
         K21J03S KC2021 05 09.24174416 21 44.82 +08 27 13.1          19.8 VqEJ145858
         K21J03S KC2021 05 09.36702516 25 29.49 +09 03 47.0          19.64GVEJ145I52
         K21J03S KC2021 05 09.37203716 25 38.41 +09 05 13.8          19.61GVEJ145I52
         K21J03S KC2021 05 09.37468716 25 43.17 +09 05 59.8          19.65GVEJ145I52
         K21J03S KC2021 05 09.37735216 25 47.91 +09 06 46.2          19.15GVEJ145I52
         K21J03S KC2021 05 09.75183 16 37 45.86 +10 54 14.3          19.4 GVEJ145N88
         K21J03S KC2021 05 09.75212 16 37 46.37 +10 54 18.5          19.5 GVEJ145N88
         K21J03S KC2021 05 10.27966316 54 47.51 +13 24 57.9          19.8 VuEJ145H21
         K21J03S KC2021 05 10.28140716 54 50.78 +13 25 27.2          20.1 VuEJ145H21
    
    Observer details:
    104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
        P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
    203 GiaGa Observatory.  Observers S. Foglia, G. Galli.  Measurer G. Galli.
        0.36-m f/5.76 Schmidt-Cassegrain + CCD.
    595 Farra d'Isonzo.  Observers S. Aschi, E. Pettarin.  Measurer S. Aschi.
        0.40-m f/5.15 reflector + CCD.
    858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.51-m Schmidt-
        Cassegrain + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
        Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
        Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
        R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 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.
    K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    N82 Multa Observatory.  Observer L. Elenin.  0.4-m f/1.25 reflector + CCD.
    N88 Xingming Observatory #3, Nanshan.  Observer X. Gao.  Measurer Q.-Z. Ye.
        0.6-m f/8 Ritchey-Chretien + CCD.
    
    Orbital elements:
    2021 JS3                                                 Earth MOID = 0.0303 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
    M 305.20721              (2000.0)            P               Q                  
    n   0.33549722     Peri.   30.11294     -0.30400075     +0.94810926             
    a   2.0512099      Node   222.38393     -0.89931299     -0.31785492             
    e   0.5081176      Incl.    7.94075     -0.31435600     -0.00755472             
    P   2.94           H   25.81          G   0.15           U   8                  
    Residuals in seconds of arc
    210508 F51 (1.5-  1.0-)   210508 595  0.2+  0.1-    210509 858  0.2+  0.3+
    210508 F51  0.1+  0.0     210508 L01  0.3+  0.4+    210509 858  0.3+  0.2+
    210508 F51  0.1-  0.0     210508 203  0.2-  0.2+    210509 I52  0.0   0.1-
    210508 N82  0.3-  1.0-    210508 595  0.0   0.8-    210509 I52  0.3-  0.2-
    210508 N82  1.1-  0.5-    210508 595  0.6-  0.3+    210509 I52  0.3+  0.3-
    210508 203  0.3-  0.3+    210508 595  0.6-  0.0     210509 I52  0.0   0.1-
    210508 L01  0.7-  0.4-    210509 104  0.3+  0.5-    210509 N88  0.8+  0.6+
    210508 595  0.7-  0.2+    210509 104  0.1+  0.3-    210509 N88  0.4+  0.2-
    210508 L01  0.9-  0.3-    210509 104  0.3-  0.0     210510 H21  0.3-  0.2+
    210508 L01  0.1-  0.2-    210509 K88  0.7-  0.7-    210510 H21  0.3-  0.0
    210508 L01  0.1-  0.1-    210509 K88  0.7-  0.3+
    210508 L01  0.1-  0.3-    210509 858  0.3+  0.3+
    
    Ephemeris:
    2021 JS3                 a,e,i = 2.05, 0.51, 8                   q = 1.0090
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 04 10    12 22 16.9 -25 33 01   0.1756  1.1669   158.4    18.4    23.3
    ...
    2021 04 25    12 56 03.1 -22 12 04   0.08922 1.0903   160.2    18.2    21.7
    ...
    2021 05 03    14 02 54.3 -13 31 10   0.05065 1.0580   170.7     8.8    20.1
    ...
    2021 05 09    16 14 08.4 +07 19 18   0.03353 1.0386   149.8    29.2    19.8
    2021 05 10    16 45 37.7 +12 07 33   0.03300 1.0358   141.7    37.2    20.0
    2021 05 11    17 18 22.9 +16 42 38   0.03332 1.0332   133.4    45.3    20.2
    ...
    2021 05 17    20 00 49.6 +31 01 52   0.04904 1.0199    98.8    78.5    22.0
    ...
    2021 05 25    21 31 46.8 +32 49 27   0.08418 1.0101    85.8    89.4    23.6
    ...
    2021 06 09    22 26 16.1 +32 00 18   0.1536  1.0170    86.3    85.0    24.8
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J145
    


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