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  • MPEC 2020-S182 : 2020 SL4

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    M.P.E.C. 2020-S182                           Issued 2020 September 24, 09:04 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 SL4                                 
    
    
    Observations:
         K20S04L  C2020 09 21.38065423 34 40.284-07 26 50.78         20.01GVES182F51
         K20S04L  C2020 09 21.39343523 34 41.571-07 25 28.66         21.23GVES182F51
         K20S04L  C2020 09 21.42294123 34 44.577-07 22 19.11         20.90GVES182F52
         K20S04L* C2020 09 23.33153 23 38 32.55 -04 08 57.2                VES182G96
         K20S04L  C2020 09 23.33717 23 38 33.08 -04 08 23.7          20.8 GVES182G96
         K20S04L  C2020 09 23.34281 23 38 33.63 -04 07 51.4          21.1 GVES182G96
         K20S04L  C2020 09 23.34846 23 38 34.14 -04 07 18.5          20.8 GVES182G96
         K20S04L  C2020 09 23.42467 23 38 41.46 -04 00 00.2          21.4 GVES182G96
         K20S04L  C2020 09 23.42577 23 38 41.52 -03 59 53.4          21.5 GVES182G96
         K20S04L  C2020 09 23.42687 23 38 41.69 -03 59 47.8          21.0 GVES182G96
         K20S04L KC2020 09 24.21080323 40 12.53 -02 46 43.7          20.93GVES182I52
         K20S04L KC2020 09 24.21332223 40 12.75 -02 46 29.9          20.85GVES182I52
         K20S04L KC2020 09 24.21584323 40 13.00 -02 46 16.4          20.50GVES182I52
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
        Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
        Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
        Schultz, M. Willman.  Measurers S. Chastel, M. Huber, 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.
    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.
    
    Orbital elements:
    2020 SL4                                                 Earth MOID = 0.0983 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M  28.54434              (2000.0)            P               Q
    n   0.24631459     Peri.  325.58679     +0.83366423     +0.55226605
    a   2.5204377      Node     0.90176     -0.46462510     +0.70378144
    e   0.5724161      Incl.    9.06979     -0.29854223     +0.44687122
    P   4.00           H   24.6           G   0.15           U   7
    Residuals in seconds of arc
    200921 F51  0.0   0.0     200923 G96  0.2+  0.2-    200924 I52  0.0   0.0
    200921 F51  0.1-  0.0     200923 G96  0.1-  0.2+    200924 I52  0.1-  0.1+
    200921 F52  0.3+  0.0     200923 G96  0.2+  0.3+    200924 I52  0.3+  0.2-
    200923 G96  0.3-  1.0-    200923 G96  0.5-  0.7+
    200923 G96  0.2-  0.0     200923 G96  0.4+  0.0
    
    Ephemeris:
    2020 SL4                 a,e,i = 2.52, 0.57, 9                   q = 1.0777
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 08 25    20 24 41.6 -68 09 44   0.1242  1.0779   119.8    54.5    22.2
    ...
    2020 09 09    22 53 36.6 -36 31 36   0.1049  1.0981   148.6    28.6    21.2
    ...
    2020 09 17    23 24 00.2 -16 14 12   0.1196  1.1214   165.6    12.9    21.0
    ...
    2020 09 23    23 37 55.5 -04 40 31   0.1415  1.1439   172.6     6.5    21.1
    2020 09 24    23 39 48.0 -03 05 33   0.1459  1.1481   173.0     6.1    21.2
    2020 09 25    23 41 34.6 -01 36 03   0.1504  1.1523   173.0     6.1    21.3
    ...
    2020 10 01    23 50 36.1 +05 39 28   0.1812  1.1800   170.0     8.5    21.8
    ...
    2020 10 09    23 59 49.6 +11 54 53   0.2300  1.2220   164.5    12.7    22.6
    ...
    2020 10 24    00 14 13.4 +17 45 44   0.3426  1.3132   155.0    18.6    23.8
    
    M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-S182
    


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