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    • MPEC 2023-S69 : 2023 RN21

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    M.P.E.C. 2023-S69                            Issued 2023 September 19, 11:24 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

                                2023 RN21                                


Observations:
     K23R21N  C2023 09 11.53599500 21 40.048-23 01 10.95         22.02GVES069F51
     K23R21N  C2023 09 11.53663500 21 39.970-23 01 08.20         22.09GVES069F51
     K23R21N* C2023 09 15.43111300 16 42.069-18 45 58.36         21.71wXES069F51
     K23R21N  C2023 09 15.44230300 16 40.781-18 45 08.81         21.73wXES069F51
     K23R21N  C2023 09 15.45350600 16 39.515-18 44 19.01         21.98wXES069F51
     K23R21N  C2023 09 15.46471600 16 38.233-18 43 28.77         21.87wXES069F51
     K23R21N  C2023 09 15.53866000 16 29.864-18 37 55.99         21.53GVES069F51
     K23R21N  C2023 09 15.53930100 16 29.787-18 37 53.25         21.66GVES069F51
     K23R21N 3C2023 09 16.49829800 15 03.354-17 23 59.68         21.45GVES069T14
     K23R21N 3C2023 09 16.49929100 15 03.234-17 23 54.95         21.71GVES069T14
     K23R21N 3C2023 09 16.50027800 15 03.119-17 23 50.21         21.51GVES069T14
     K23R21N  C2023 09 19.36372700 10 16.187-13 15 03.39         20.87wXES069F52
     K23R21N  C2023 09 19.38670100 10 13.106-13 12 53.88         21.49wXES069F52
     K23R21N  C2023 09 19.39818600 10 11.543-13 11 48.93         21.43wXES069F52

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
    Lowe, P. Minguez, A. Schultz, I. Smith.  Measurers S. Chastel, J.
    Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers,
    T. de Boer, J. Bulger, H. Gao, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez,
    A. Schultz, I. Smith.  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.
T14 Canada-France-Hawaii Telescope, Maunakea.  Observers R. Wainscoat, H.
    Januszewski, H. Flewelling.  Measurers R. Weryk, R. Wainscoat.  3.6-m
    Canada-France-Hawaii Telescope + CCD.

Orbital elements:
2023 RN21                                                Earth MOID = 0.0980 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 337.29169              (2000.0)            P               Q                  
n   0.50631898     Peri.   31.54559     +0.83286010     -0.55341800             
a   1.5590256      Node     2.11470     +0.44752476     +0.66428080             
e   0.3129596      Incl.   13.34853     +0.32567722     +0.50245351             
P   1.95           H   24.94          G   0.15           U   9                  
Residuals in seconds of arc
230911 F51  0.1+  0.3-    230915 F51  0.0   0.2+    230916 T14  0.0   0.0
230911 F51  0.2-  0.3+    230915 F51  0.1+  0.1+    230919 F52  0.1-  0.0
230915 F51  0.2+  0.0     230915 F51  0.0   0.0     230919 F52  0.1+  0.0
230915 F51  0.1-  0.0     230916 T14  0.0   0.0     230919 F52  0.0   0.0
230915 F51  0.0   0.0     230916 T14  0.0   0.0

Ephemeris:
2023 RN21                a,e,i = 1.56, 0.31, 13                  q = 1.0711
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 08 20    00 26 24.5 -33 52 04   0.2746  1.2340   139.6    32.1    24.0
...
2023 09 04    00 27 32.0 -28 38 57   0.1917  1.1767   148.7    26.5    22.9
...
2023 09 12    00 21 10.1 -22 33 32   0.1543  1.1497   156.4    20.5    22.2
...
2023 09 18    00 12 37.8 -15 18 24   0.1306  1.1316   164.6    13.7    21.6
2023 09 19    00 10 53.4 -13 48 33   0.1272  1.1287   166.2    12.3    21.5
2023 09 20    00 09 03.6 -12 13 14   0.1239  1.1259   167.9    10.8    21.3
...
2023 09 26    23 56 17.7 -00 42 35   0.1079  1.1105   176.5     3.1    20.6
...
2023 10 04    23 35 05.6 +18 47 06   0.09915 1.0936   158.8    19.3    21.1
...
2023 10 19    22 49 42.9 +50 22 11   0.1215  1.0742   127.3    47.5    22.3

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-S69

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