• MPC Preparation (Info)

  • MPEC 2020-S178 : 2020 SG4

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2020-S177 Read MPEC 2020-S179


    M.P.E.C. 2020-S178                           Issued 2020 September 24, 06:43 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 SG4                                 
    
    
    Observations:
         K20S04G  C2020 09 11.29146521 01 24.292-21 34 35.60         22.00GVES178F51
         K20S04G  C2020 09 11.31420321 01 29.654-21 32 59.35         22.66GVES178F51
         K20S04G  C2020 09 11.32558321 01 32.344-21 32 10.22         22.25GVES178F51
         K20S04G  C2020 09 14.31424321 16 24.599-17 41 59.04         21.95GVES178F51
         K20S04G  C2020 09 14.32585621 16 27.627-17 41 02.42         22.20GVES178F51
         K20S04G  C2020 09 14.34913221 16 33.789-17 39 06.91         21.67GVES178F51
         K20S04G  C2020 09 16.28515921 27 00.107-14 53 49.82         22.25GVES178F52
         K20S04G  C2020 09 16.29668121 27 03.414-14 52 48.27         21.96GVES178F52
         K20S04G  C2020 09 16.30819921 27 06.582-14 51 49.00         22.33GVES178F52
         K20S04G* C2020 09 23.24109 22 08 06.91 -03 43 19.2          21.6 GVES178G96
         K20S04G  C2020 09 23.24674 22 08 08.72 -03 42 45.2          21.6 GVES178G96
         K20S04G  C2020 09 23.25239 22 08 10.59 -03 42 11.1          21.5 GVES178G96
         K20S04G  C2020 09 23.25803 22 08 12.45 -03 41 37.4          21.9 GVES178G96
         K20S04G KC2020 09 23.34840222 08 42.68 -03 32 24.9          20.96GVES178I52
         K20S04G KC2020 09 23.35176222 08 43.84 -03 32 04.5                VES178I52
         K20S04G KC2020 09 23.35512222 08 45.10 -03 31 44.5          21.11GVES178I52
         K20S04G KC2020 09 24.22871722 14 18.47 -02 03 06.9          21.81GVES178G96
         K20S04G KC2020 09 24.23034022 14 19.00 -02 02 57.3          22.71GVES178G96
         K20S04G KC2020 09 24.23196222 14 19.54 -02 02 46.9          21.67GVES178G96
         K20S04G KC2020 09 24.23358422 14 20.10 -02 02 37.7          22.11GVES178G96
    
    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. Dukes, 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 SG4                                                 Earth MOID = 0.0582 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
    M  39.79219              (2000.0)            P               Q                  
    n   0.46138774     Peri.    5.90751     +0.99873071     +0.04944644             
    a   1.6586650      Node   351.24101     -0.04840653     +0.88963069             
    e   0.3585527      Incl.    3.61162     -0.01392028     +0.45399591             
    P   2.14           H   26.51          G   0.15           U   8                  
    Residuals in seconds of arc
    200911 F51  0.0+  0.1+    200916 F52 (1.0+  1.0+)   200923 I52  0.5-  0.0-
    200911 F51  0.1-  0.4-    200916 F52  0.2-  0.4-    200923 I52  1.1+  0.6-
    200911 F51  0.0+  0.0-    200923 G96  0.2+  0.5+    200924 G96  0.1+  0.2+
    200914 F51  0.2+  0.2+    200923 G96  0.5-  0.1+    200924 G96  0.0+  0.0-
    200914 F51  0.3-  0.1-    200923 G96  0.3-  0.2-    200924 G96  0.0+  0.5+
    200914 F51  0.1+  0.6+    200923 G96  0.3-  0.8-    200924 G96  0.4+  0.2-
    200916 F52  0.3+  0.1-    200923 I52  0.6-  0.1+
    
    Ephemeris:
    2020 SG4                 a,e,i = 1.66, 0.36, 4                   q = 1.0639
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 08 25    20 05 26.0 -34 45 16   0.1090  1.0986   141.8    34.6    23.3
    ...
    2020 09 09    20 51 00.0 -24 08 41   0.08030 1.0713   141.6    35.7    22.6
    ...
    2020 09 17    21 30 55.4 -13 48 49   0.07090 1.0649   146.3    31.6    22.2
    ...
    2020 09 23    22 06 37.3 -04 06 34   0.06837 1.0639   151.2    27.0    22.0
    2020 09 24    22 12 52.2 -02 25 12   0.06840 1.0641   152.0    26.2    22.0
    2020 09 25    22 19 09.7 -00 43 52   0.06857 1.0643   152.8    25.5    22.0
    ...
    2020 10 01    22 56 58.7 +08 55 27   0.07240 1.0679   156.3    22.1    22.0
    ...
    2020 10 09    23 43 35.1 +18 53 38   0.08457 1.0777   157.8    20.5    22.3
    ...
    2020 10 24    00 48 36.5 +27 41 58   0.1242  1.1106   157.8    19.8    23.2
    
    M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-S178
    


    Read MPEC 2020-S177 Read MPEC 2020-S179


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)