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  • MPEC 2020-S198 : 2020 SY4

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    M.P.E.C. 2020-S198                           Issued 2020 September 26, 00:14 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 SY4                                 
    
    
    Observations:
         K20S04Y  C2020 09 22.38159 00 01 34.81 +03 04 04.7          22.2 GVES198G96
         K20S04Y  C2020 09 22.38719 00 01 35.32 +03 04 14.6          21.9 GVES198G96
         K20S04Y  C2020 09 22.39281 00 01 35.79 +03 04 24.5          21.3 GVES198G96
         K20S04Y* C2020 09 25.18347900 12 27.94 +05 31 09.4          20.38GVES198G96
         K20S04Y  C2020 09 25.18907900 12 29.87 +05 31 41.3          20.29GVES198G96
         K20S04Y  C2020 09 25.19468800 12 31.77 +05 32 13.2          20.05GVES198G96
         K20S04Y mC2020 09 25.30227700 13 07.91 +05 42 39.0          19.83GVES198I52
         K20S04Y mC2020 09 25.30304400 13 08.15 +05 42 43.3          20.22GVES198I52
         K20S04Y mC2020 09 25.30381200 13 08.43 +05 42 48.7          20.40GVES198I52
         K20S04Y mC2020 09 25.30457900 13 08.72 +05 42 52.8          19.97GVES198I52
         K20S04Y  C2020 09 25.46387700 14 17.772+06 00 19.72         20.44wUES198F52
         K20S04Y  C2020 09 25.47551700 14 22.088+06 01 35.62         20.26wUES198F52
         K20S04Y  C2020 09 25.48716800 14 26.425+06 02 51.52         20.21wUES198F52
         K20S04Y  C2020 09 25.49878900 14 30.869+06 04 08.52         20.16wUES198F52
         K20S04Y KC2020 09 25.84301500 17 57.27 +06 44 14.4          20.2 GVES198J95
         K20S04Y KC2020 09 25.85558700 18 04.45 +06 45 59.7          19.8 GVES198J95
         K20S04Y KC2020 09 25.86833300 18 11.69 +06 47 47.0          19.8 GVES198J95
    
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Dukes, 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.  Observers T. A. Pruyne, G. J. Leonard.  Measurers E.
        J. Christensen, B. Gray, D. Rankin, F. C. Shelly, 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, R. L. Seaman, K. W. Wierzchos.  1.5-m
        reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  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.  1.0-m reflector +
        CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
        + CCD.
    
    Orbital elements:
    2020 SY4                                                 Earth MOID = 0.0016 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M  12.64417              (2000.0)            P               Q
    n   0.38299012     Peri.  244.97744     +0.16901456     -0.98561004
    a   1.8779225      Node   195.29273     +0.90784307     +0.15671793
    e   0.6140775      Incl.    0.57201     +0.38373824     +0.06334306
    P   2.57           H   27.4           G   0.15           U   7
    Residuals in seconds of arc
    200922 G96  0.6-  0.0     200925 I52  0.1-  0.1-    200925 F52  0.3-  0.3-
    200922 G96  0.2+  0.0     200925 I52  0.4-  0.4-    200925 F52  0.1+  0.1+
    200922 G96  0.4+  0.0     200925 I52  0.1-  0.4+    200925 J95  0.5-  0.3+
    200925 G96  0.0   0.2-    200925 I52  0.3+  0.0     200925 J95  0.2+  0.1+
    200925 G96  0.3+  0.0     200925 F52  0.0   0.2+    200925 J95  0.3+  0.3-
    200925 G96  0.1+  0.1+    200925 F52  0.2+  0.1+
    
    Ephemeris:
    2020 SY4                 a,e,i = 1.88, 0.61, 1                   q = 0.7247
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 08 27    23 47 39.9 +00 02 05   0.3300  1.3199   156.7    17.6    26.5
    ...
    2020 09 11    23 52 43.4 +00 58 14   0.1697  1.1740   169.6     8.9    24.5
    ...
    2020 09 19    23 56 57.8 +01 58 47   0.09160 1.0959   175.6     4.0    22.8
    ...
    2020 09 25    00 11 06.4 +05 16 51   0.03529 1.0381   175.5     4.4    20.6
    2020 09 26    00 19 26.4 +07 10 56   0.02608 1.0285   173.7     6.1    20.0
    2020 09 27    00 36 59.4 +11 05 24   0.01702 1.0190   169.1    10.8    19.3
    ...
    2020 10 03    11 28 10.9 +04 38 31   0.03985 0.9630    19.1   160.1    31.3
    ...
    2020 10 11    11 43 01.7 +01 23 48   0.1156  0.8925    22.3   154.9    31.9
    ...
    2020 10 26    11 55 57.5 -00 25 03   0.2700  0.7834    33.5   135.5    30.3
    
    M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-S198
    


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