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    • MPEC 2020-S84 : 2020 SX

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    M.P.E.C. 2020-S84                            Issued 2020 September 19, 11:17 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 SX                                 


Observations:
     K20S00X  C2020 09 06.51258822 53 40.834+13 47 29.21         21.45GVES084F51
     K20S00X  C2020 09 06.52445922 53 41.661+13 47 30.59         20.91GVES084F51
     K20S00X  C2020 09 12.50722123 01 40.159+13 49 32.23         21.18GVES084F52
     K20S00X  C2020 09 12.52771623 01 41.503+13 49 30.26         21.76GVES084F52
     K20S00X  C2020 09 12.53797923 01 42.211+13 49 28.91         21.40GVES084F52
     K20S00X* C2020 09 17.52629323 08 09.534+13 35 17.92         22.08wUES084F51
     K20S00X  C2020 09 17.54597923 08 10.892+13 35 12.58         22.50wUES084F51
     K20S00X  C2020 09 17.56549923 08 12.238+13 35 07.02         22.34wUES084F51
     K20S00X KC2020 09 18.15106 23 09 00.03 +13 32 34.9                oES084711
     K20S00X KC2020 09 18.15513323 08 59.76 +13 32 31.7          21.9 VuES084H21
     K20S00X KC2020 09 18.15539 23 09 00.25 +13 32 34.5                oES084711
     K20S00X KC2020 09 18.15971 23 09 00.60 +13 32 32.6                oES084711
     K20S00X KC2020 09 18.16121723 09 00.12 +13 32 30.0          22.2 VuES084H21
     K20S00X KC2020 09 18.17176223 09 00.84 +13 32 27.5          22.1 VuES084H21
     K20S00X  C2020 09 18.21575 23 09 04.47 +13 32 18.7          21.9 GVES084V06
     K20S00X  C2020 09 18.22050 23 09 04.80 +13 32 17.4          22.0 GVES084V06
     K20S00X  C2020 09 18.22525 23 09 05.09 +13 32 16.1          21.9 GVES084V06

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, K. Chambers, T. Lowe, A.
    Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
    Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau, J. Fairlamb, H.
    Flewelling, C.-C. Lin, E. Magnier.  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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0
    astrograph + CCD.
V06 Catalina Sky Survey-Kuiper.  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.  1.55-m reflector +
    CCD.

Orbital elements:
2020 SX                                                  Earth MOID = 0.2581 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 338.93292              (2000.0)            P               Q
n   0.24854832     Peri.   84.04976     +0.89326859     +0.44463272
a   2.5053140      Node   249.53490     -0.43529417     +0.81886264
e   0.4987061      Incl.    4.04749     -0.11220611     +0.36299548
P   3.97           H   23.3           G   0.15           U   6
Residuals in seconds of arc
200906 F51  0.1+  0.0     200917 F51  0.1+  0.0     200918 H21  0.5-  0.5+
200906 F51  0.1-  0.0     200917 F51  0.1-  0.1-    200918 H21  0.4-  0.6+
200912 F52  0.6+  0.2-    200918 711  0.9+  0.5-    200918 V06  0.1-  0.2+
200912 F52  0.3-  0.2+    200918 H21  0.2+  0.7+    200918 V06  0.1+  0.1+
200912 F52  0.3-  0.1+    200918 711  0.2-  0.1+    200918 V06  0.3-  0.1-
200917 F51  0.1-  0.1-    200918 711  0.6+  0.7-

Ephemeris:
2020 SX                  a,e,i = 2.51, 0.50, 4                   q = 1.2559
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 08 20    22 28 45.4 +11 17 56   0.2645  1.2566   155.0    19.9    21.9
...
2020 09 04    22 50 15.7 +13 39 40   0.2672  1.2618   159.1    16.5    21.8
...
2020 09 12    23 01 01.2 +13 50 18   0.2781  1.2730   161.3    14.7    21.9
...
2020 09 18    23 08 47.2 +13 33 25   0.2908  1.2851   162.4    13.7    21.9
2020 09 19    23 10 03.8 +13 28 55   0.2933  1.2874   162.5    13.5    22.0
2020 09 20    23 11 20.3 +13 24 01   0.2959  1.2898   162.6    13.4    22.0
...
2020 09 26    23 18 56.8 +12 47 43   0.3142  1.3059   162.6    13.3    22.1
...
2020 10 04    23 29 04.2 +11 48 25   0.3455  1.3315   160.9    14.2    22.4
...
2020 10 19    23 48 21.4 +09 58 52   0.4266  1.3911   153.6    18.6    23.1

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-S84

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