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    • MPEC 2023-S67 : 2023 RL21

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    M.P.E.C. 2023-S67                            Issued 2023 September 19, 11:22 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 RL21                                


Observations:
     K23R21L  C2023 09 08.41115523 40 22.689-20 42 24.27         22.56GVES067F51
     K23R21L  C2023 09 08.42297523 40 24.390-20 42 35.17         22.13GVES067F51
     K23R21L  C2023 09 08.43479123 40 26.046-20 42 45.95         22.43GVES067F51
     K23R21L  C2023 09 12.40221523 52 36.924-21 44 51.00         22.61GVES067F52
     K23R21L  C2023 09 12.41243623 52 38.811-21 45 01.65         22.21GVES067F52
     K23R21L  C2023 09 12.43291823 52 42.684-21 45 21.66               VES067F52
     K23R21L* C2023 09 15.43251200 04 24.512-22 35 01.14         22.12wXES067F51
     K23R21L  C2023 09 15.44370600 04 27.137-22 35 12.66         21.98wXES067F51
     K23R21L  C2023 09 15.45491000 04 29.766-22 35 24.08         21.42wXES067F51
     K23R21L 3C2023 09 16.49144300 09 10.093-22 52 50.41         21.86GVES067T14
     K23R21L 3C2023 09 16.49242000 09 10.339-22 52 51.43         21.64GVES067T14
     K23R21L 3C2023 09 16.49339700 09 10.590-22 52 52.33         21.62GVES067T14
     K23R21L 3C2023 09 18.52883500 19 32.441-23 27 05.32         22.01GVES067T14
     K23R21L 3C2023 09 18.52981100 19 32.738-23 27 06.21         21.99GVES067T14
     K23R21L 3C2023 09 18.53079100 19 33.035-23 27 07.10         21.82GVES067T14

Observer details:
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, 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, 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.  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 RL21                                                Earth MOID = 0.0262 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 348.92176              (2000.0)            P               Q                  
n   0.25158789     Peri.  324.27314     +0.77455722     -0.63099778             
a   2.4850944      Node    74.90978     +0.59030002     +0.69638291             
e   0.5963689      Incl.    2.58953     +0.22717176     +0.34189566             
P   3.92           H   25.18          G   0.15           U   8                  
Residuals in seconds of arc
230908 F51  0.1-  0.0     230912 F52  0.1+  0.1+    230916 T14  0.0   0.0
230908 F51  0.2+  0.0     230915 F51  0.0   0.1+    230916 T14  0.0   0.0
230908 F51  0.0   0.1+    230915 F51  0.0   0.0     230918 T14  0.0   0.0
230912 F52  0.2-  0.0     230915 F51  0.0   0.0     230918 T14  0.0   0.0
230912 F52  0.6-  0.3-    230916 T14  0.0   0.0     230918 T14  0.0   0.0

Ephemeris:
2023 RL21                a,e,i = 2.49, 0.60, 3                   q = 1.0031
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 08 20    23 06 53.5 -16 54 20   0.3217  1.3219   162.0    13.7    24.1
...
2023 09 04    23 29 54.1 -19 39 02   0.2109  1.2131   164.4    12.9    23.0
...
2023 09 12    23 51 12.5 -21 37 44   0.1615  1.1607   161.1    16.3    22.4
...
2023 09 18    00 16 42.8 -23 17 29   0.1287  1.1247   157.1    20.4    22.0
2023 09 19    00 22 13.5 -23 34 09   0.1236  1.1191   156.3    21.2    21.9
2023 09 20    00 28 12.1 -23 50 31   0.1186  1.1135   155.4    22.0    21.8
...
2023 09 26    01 16 53.7 -25 08 10   0.09163 1.0825   149.1    28.4    21.4
...
2023 10 04    03 11 28.2 -23 05 03   0.06707 1.0480   133.7    43.7    21.1
...
2023 10 19    07 06 34.1 -00 52 38   0.08231 1.0086    96.3    79.0    22.5

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-S67

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