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    • MPEC 2024-A117 : 2021 SJ88

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    M.P.E.C. 2024-A117                             Issued 2024 January 11, 02:07 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                2021 SJ88                                


Observations:
     K21S88J  C2021 09 29.43996503 05 31.083+17 22 31.01         18.44GVEA117F52
     K21S88J* C2021 09 29.67730402 00 02.119+03 46 08.22         19.2 GVEA117P07
     K21S88J  C2021 09 29.72336101 42 48.125+00 02 39.16         19.5 GVEA117P07
     K21S88J  C2021 09 29.75917001 28 31.435-03 02 29.08         19.5 GVEA117P07
     K21S88J  C2021 09 29.79843501 12 08.743-06 33 04.72         19.2 GVEA117P07

Observer details:
F52 Pan-STARRS 2, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
P07 Space Surveillance Telescope, HEH Station.  Observers M. Blythe, R.
    Brungard, P. Festler, T. McVey, J. Paige, G. Spitz, L. Banks.  Measurers
    M. Cornell, M. Kotson, A. Lue, R. Rios, J. Ruprecht, J. Vaillancourt, J.
    Varey, H. Viggh, D. Woods, R. Monardez.  3.5-m f/1. Reflector + CCD.

Orbital elements:
2021 SJ88                                                Earth MOID = 0.0026 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 105.99696              (2000.0)            P               Q                  
n   1.89919660     Peri.  356.43075     -0.99878392     +0.04648233             
a   0.6457872      Node   186.30426     -0.04071244     -0.96560239             
e   0.5595381      Incl.    8.60729     -0.02780613     -0.25583476             
P   0.52           H   30.92          G   0.15           U   8                  
Residuals in seconds of arc
210929 F52  0.1-  0.1+    210929 P07  0.4+  0.1-    210929 P07  0.2-  0.1+
210929 P07  0.2-  0.2-    210929 P07  0.0   0.1+

Ephemeris:
2021 SJ88                a,e,i = 0.65, 0.56, 9                   q = 0.2844
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 12 12    21 05 19.9 -23 21 46   0.6091  0.7851    52.9    88.9    32.5
...
2023 12 27    21 02 02.8 -24 48 10   0.5821  0.6244    36.9   109.2    32.8
...
2024 01 04    20 40 09.1 -26 03 45   0.5678  0.5188    24.0   129.6    33.9
...
2024 01 10    20 10 21.6 -26 37 49   0.5799  0.4330    11.9   152.0
2024 01 11    20 04 31.3 -26 37 23   0.5859  0.4186     9.9   156.2
2024 01 12    19 58 34.5 -26 34 27   0.5934  0.4043     8.0   160.3
...
2024 01 18    19 26 06.9 -25 17 58   0.6800  0.3260     8.3   154.2
...
2024 01 26    19 19 23.9 -21 52 33   0.9144  0.2861    16.8    95.6    31.4
...
2024 02 10    20 33 06.6 -15 48 01   1.3436  0.4546    14.0    31.8    31.2

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-A117

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