[Iaude] MPEC S186: 2023 SK5 [a=2.42,e=0.51,i=6.7,H=20.3]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2023-S186                           Issued 2023 September 24, 15:01 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2023 SK5                                    


Observations:
     K23S05K* C2023 09 20.60571802 38 02.247+31 40 43.37         21.80wXES186F52
     K23S05K  C2023 09 20.61356302 38 01.925+31 40 44.43         21.44wXES186F52
     K23S05K  C2023 09 20.62138702 38 01.599+31 40 45.38         21.63wXES186F52
     K23S05K  C2023 09 20.62918802 38 01.296+31 40 46.43         21.54wXES186F52
     K23S05K 1C2023 09 21.09265 02 37 45.16 +31 41 46.3          21.2 VXES186033
     K23S05K 1C2023 09 21.09623 02 37 45.00 +31 41 46.7          21.3 VXES186033
     K23S05K 1C2023 09 21.09982 02 37 44.88 +31 41 47.2          21.1 VXES186033
     K23S05K  C2023 09 22.53349602 36 49.163+31 44 40.61         21.57GVES186F51
     K23S05K  C2023 09 22.53431302 36 49.119+31 44 40.77         21.50GVES186F51
     K23S05K KC2023 09 23.31548802 36 15.94 +31 45 42.9          22.0 VuES186H21
     K23S05K KC2023 09 23.32671802 36 15.38 +31 45 44.1          21.5 VuES186H21
     K23S05K KC2023 09 23.33759902 36 14.87 +31 45 44.4          21.7 VuES186H21
     K23S05K KC2023 09 24.05120 02 35 42.74 +31 46 28.1          21.4 GVES186204
     K23S05K KC2023 09 24.09605 02 35 40.48 +31 46 30.6                VES186204
     K23S05K KC2023 09 24.30148302 35 31.24 +31 46 42.1          22.0 VuES186H21
     K23S05K KC2023 09 24.31574602 35 30.51 +31 46 42.7          21.6 VuES186H21

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
    Hogner, F. Ludwig, M. Hartmann, B. Stecklum.  Measurer B. Stecklum.
    1.34-m f/3 Schmidt + CCD.
204 Schiaparelli Observatory.  Observers L. Buzzi, G. Galli.  0.84-m f/3.5
    reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, P.
    Minguez, A. Schultz, I. Smith.  Measurers S. Chastel, J. Fairlamb, M.
    Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien +
    CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Bulger, J.
    Fairlamb, H. Gao, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, Y.
    Ramanjooloo, A. Schultz, I. Smith, R. Wainscoat, R. Weryk.  1.8-m Ritchey-
    Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.81-m f/4.0 astrograph + CCD,
    0.76-m f/3.0 astrograph + CCD.

Orbital elements:
2023 SK5                                                 Earth MOID = 0.1673 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Bell                    
M  19.97091              (2000.0)            P               Q                  
n   0.26247774     Peri.   14.04256     +0.62342397     +0.77474993             
a   2.4158746      Node   294.63311     -0.72808950     +0.52610676             
e   0.5113287      Incl.    6.65732     -0.28500567     +0.35067680             
P   3.76           H   20.38          G   0.15           U   9                  
Residuals in seconds of arc
230920 F52  0.0   0.0     230921 033  0.1+  0.0     230924 204  0.9-  0.0
230920 F52  0.0   0.0     230922 F51  0.1+  0.1-    230924 204  0.5-  0.2+
230920 F52  0.1-  0.0     230922 F51  0.0   0.0     230924 H21  0.1+  0.1+
230920 F52  0.1+  0.0     230923 H21  0.0   0.0     230924 H21  0.3+  0.1-
230921 033  0.0   0.1+    230923 H21  0.2-  0.3+
230921 033  0.2-  0.0     230923 H21  0.1+  0.3-

Ephemeris:
2023 SK5                 a,e,i = 2.42, 0.51, 7                   q = 1.1806
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 08 25    02 32 01.3 +28 09 20   0.6400  1.3390   106.2    46.5    21.8
...
2023 09 09    02 40 44.3 +30 42 20   0.6380  1.4195   117.5    39.0    21.7
...
2023 09 17    02 39 45.7 +31 28 45   0.6384  1.4662   124.7    34.3    21.7
...
2023 09 23    02 36 29.5 +31 45 20   0.6410  1.5025   130.7    30.4    21.6
2023 09 24    02 35 45.1 +31 46 29   0.6417  1.5086   131.7    29.8    21.6
2023 09 25    02 34 57.5 +31 47 09   0.6425  1.5148   132.8    29.1    21.6
...
2023 10 01    02 29 12.0 +31 41 08   0.6493  1.5522   139.2    24.9    21.5
...
2023 10 09    02 19 24.7 +31 06 00   0.6654  1.6031   148.1    19.2    21.5
...
2023 10 24    01 58 56.6 +28 47 25   0.7250  1.7006   162.6    10.1    21.5

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-S186