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  • MPEC 2020-T130 : 2020 TJ4

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    M.P.E.C. 2020-T130                             Issued 2020 October 14, 11:45 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
    
                                    2020 TJ4                                 
    
    
    Observations:
         K20T04J* C2020 10 12.24012501 03 36.63 +31 27 51.0          21.37GVET130G96
         K20T04J  C2020 10 12.24528801 03 37.26 +31 28 06.9          21.39GVET130G96
         K20T04J  C2020 10 12.25045301 03 37.85 +31 28 22.0          21.59GVET130G96
         K20T04J  C2020 10 12.25562401 03 38.37 +31 28 37.0                VET130G96
         K20T04J KC2020 10 12.28671801 03 42.21 +31 30 09.3          21.26GVET130V06
         K20T04J KC2020 10 12.28909301 03 42.52 +31 30 16.3          21.44GVET130V06
         K20T04J KC2020 10 12.29146801 03 42.80 +31 30 23.5          21.28GVET130V06
         K20T04J KC2020 10 12.29384301 03 43.10 +31 30 30.5          21.36GVET130V06
         K20T04J KC2020 10 12.32641201 03 46.04 +31 31 56.7          21.1 VuET130H21
         K20T04J KC2020 10 12.33515301 03 47.13 +31 32 21.8          21.2 VuET130H21
         K20T04J KC2020 10 12.34496501 03 48.41 +31 32 50.2          21.4 VuET130H21
         K20T04J KC2020 10 12.42104501 03 58.72 +31 36 37.3          20.96GVET130V06
         K20T04J KC2020 10 12.42342001 03 59.05 +31 36 44.2          20.87GVET130V06
         K20T04J KC2020 10 12.42579501 03 59.34 +31 36 50.5          21.14GVET130V06
         K20T04J  C2020 10 12.49800501 04 10.236+31 40 36.30         21.69wUET130F51
         K20T04J  C2020 10 12.51078201 04 11.798+31 41 13.01         21.44wUET130F51
         K20T04J  C2020 10 12.52351501 04 13.402+31 41 49.35         21.45wUET130F51
         K20T04J  C2020 10 12.53624501 04 14.951+31 42 24.99         21.30wUET130F51
         K20T04J hC2020 10 12.93904001 05 14.78 +32 01 46.6          21.3 GVET130L01
         K20T04J hC2020 10 12.94177001 05 15.10 +32 01 55.1          21.3 GVET130L01
         K20T04J hC2020 10 12.94685301 05 15.80 +32 02 09.5          21.2 GVET130L01
         K20T04J KC2020 10 13.20574001 05 53.31 +32 14 46.2          21.2 VuET130H21
         K20T04J KC2020 10 13.21010801 05 53.89 +32 14 59.2          21.6 VuET130H21
         K20T04J KC2020 10 13.25020 01 05 59.78 +32 17 02.5                oET130711
         K20T04J KC2020 10 13.25390 01 06 00.23 +32 17 13.4                oET130711
         K20T04J IC2020 10 13.25755 01 06 00.67 +32 17 23.5                oET130711
         K20T04J KC2020 10 14.21353901 08 21.46 +33 03 06.3          21.18GVET130I52
         K20T04J KC2020 10 14.21774301 08 22.02 +33 03 18.6          21.11GVET130I52
         K20T04J KC2020 10 14.22194501 08 22.51 +33 03 30.5          21.27GVET130I52
         K20T04J KC2020 10 14.31169 01 08 33.67 +33 07 50.0                oET130711
         K20T04J KC2020 10 14.31531 01 08 34.11 +33 07 59.9                oET130711
         K20T04J KC2020 10 14.31892 01 08 34.57 +33 08 10.1                oET130711
    
    Observer details:
    711 McDonald Observatory, Fort Davis.  Observers J. W. Kuehne, J. G. Ries.
        Measurer J. G. Ries.  2.1-m reflector + CCD + focal reducer.
    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.
    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, 0.81-m f/4.0 astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  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.  1.0-m reflector +
        CCD.
    L01 Visnjan Observatory, Tican.  Observers K. Korlevic, I. Lyon.  Measurer K.
        Korlevic.  1.0-m f/2.9 reflector + CCD.
    V06 Catalina Sky Survey-Kuiper.  Observer 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.  1.55-m reflector +
        1K CCD.
    
    Orbital elements:
    2020 TJ4                                                 Earth MOID = 0.1808 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M  13.28783              (2000.0)            P               Q
    n   0.24760382     Peri.   51.91521     +0.84533373     -0.53328810
    a   2.5116810      Node   340.24983     +0.45589077     +0.75116454
    e   0.5382363      Incl.    5.40902     +0.27852196     +0.38904451
    P   3.98           H   23.7           G   0.15           U   7
    Residuals in seconds of arc
    201012 G96  0.6+  0.4-    201012 V06  0.3-  0.1-    201013 H21  0.1-  0.3+
    201012 G96  0.6+  0.2+    201012 V06  0.0   0.1+    201013 711  0.3-  0.2+
    201012 G96  0.1+  0.1-    201012 V06  0.1-  0.3-    201013 711  0.4-  0.3+
    201012 G96  1.2-  0.5-    201012 F51  0.0   0.1-    201013 711  0.6-  0.2-
    201012 V06  0.2-  0.2-    201012 F51  0.1-  0.2+    201014 I52  0.2+  0.4-
    201012 V06  0.1+  0.2-    201012 F51  0.3+  0.3+    201014 I52  0.3+  0.3-
    201012 V06  0.0   0.0     201012 F51  0.1-  0.1-    201014 I52  0.3-  0.7-
    201012 V06  0.2+  0.0     201012 L01  0.2+  0.3-    201014 711  0.4+  0.5+
    201012 H21  0.0   0.1-    201012 L01  0.2-  0.3+    201014 711  0.1+  0.2+
    201012 H21  0.1-  0.1-    201012 L01  0.6+  0.1-    201014 711  0.0   0.3+
    201012 H21  0.3+  0.3+    201013 H21  0.5-  0.0
    
    Ephemeris:
    2020 TJ4                 a,e,i = 2.51, 0.54, 5                   q = 1.1598
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 09 14    00 17 19.0 +09 05 56   0.2537  1.2502   162.5    14.0    22.0
    ...
    2020 09 29    00 37 35.0 +20 16 12   0.2036  1.1968   161.7    15.2    21.5
    ...
    2020 10 07    00 52 08.2 +27 04 06   0.1891  1.1773   158.4    18.2    21.4
    ...
    2020 10 13    01 05 23.2 +32 04 53   0.1835  1.1673   155.6    20.7    21.4
    2020 10 14    01 07 48.3 +32 52 57   0.1830  1.1661   155.2    21.1    21.4
    2020 10 15    01 10 17.1 +33 40 10   0.1826  1.1649   154.7    21.4    21.4
    ...
    2020 10 21    01 26 26.2 +38 01 19   0.1826  1.1604   152.4    23.4    21.4
    ...
    2020 10 29    01 50 56.8 +42 32 49   0.1886  1.1611   150.5    24.9    21.6
    ...
    2020 11 13    02 39 35.1 +46 24 56   0.2156  1.1823   150.7    24.2    21.9
    
    M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-T130
    


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