[Iaude] MPEC R221: 2023 RY9 [a=2.36,e=0.52,i=8.2,H=25.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Sep 15 09:04:06 EDT 2023 

M.P.E.C. 2023-R221                           Issued 2023 September 15, 13:02 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 RY9                                    


Observations:
     K23R09Y* C2023 09 11.33269622 31 16.820+06 30 31.69         21.96wXER221F52
     K23R09Y  C2023 09 11.34367422 31 18.276+06 31 19.17         21.69wXER221F52
     K23R09Y  C2023 09 11.36557622 31 21.145+06 32 53.46         21.86wXER221F52
     K23R09Y  C2023 09 11.47134822 31 34.953+06 40 24.99         21.49GVER221F52
     K23R09Y  C2023 09 11.47198322 31 35.030+06 40 27.45         22.22GVER221F52
     K23R09Y  C2023 09 11.47261922 31 35.114+06 40 30.10         21.81GVER221F52
     K23R09Y 1C2023 09 11.95929 22 32 50.81 +07 14 14.4          21.2 VXER221033
     K23R09Y 1C2023 09 11.96270 22 32 51.29 +07 14 28.8          21.1 VXER221033
     K23R09Y 1C2023 09 11.96611 22 32 51.76 +07 14 42.5          21.7 VXER221033
     K23R09Y 3C2023 09 12.55305322 34 17.697+07 55 16.94         21.96GVER221T14
     K23R09Y 3C2023 09 12.55403222 34 17.831+07 55 20.96         21.80GVER221T14
     K23R09Y 3C2023 09 12.55501222 34 17.972+07 55 24.83         21.97GVER221T14
     K23R09Y 1C2023 09 14.93256 22 40 07.31 +10 25 59.9          22.3 VXER221033
     K23R09Y 1C2023 09 14.93614 22 40 07.73 +10 26 12.3          22.5 VXER221033
     K23R09Y 1C2023 09 14.93973 22 40 08.18 +10 26 25.1          22.7 VXER221033
     K23R09Y KC2023 09 15.43108 22 41 14.70 +10 55 32.9          22.1 RoER221291
     K23R09Y KC2023 09 15.43855 22 41 15.67 +10 55 58.1          22.3 RoER221291
     K23R09Y KC2023 09 15.44609 22 41 16.64 +10 56 23.7          22.8 RoER221291

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
    Hoegner, F. Ludwig, M. Hartmann, B. Stecklum.  Measurer B. Stecklum.
    1.34-m f/3 Schmidt + CCD.
291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, P. Minguez, A.
    Schultz, I. Smith, K. Chambers, T. Dukes.  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, S. Chastel.  1.8-m Ritchey-Chretien + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea.  Observers R. Wainscoat, L.
    Wells, T. Burdullis.  Measurers R. Weryk, R. Wainscoat.  3.6-m Canada-
    France-Hawaii Telescope + CCD.

Orbital elements:
2023 RY9                                                 Earth MOID = 0.1162 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M   5.24103              (2000.0)            P               Q                  
n   0.27145554     Peri.  355.07342     +0.86355054     +0.50051846             
a   2.3623101      Node   334.60120     -0.45762958     +0.72678894             
e   0.5230050      Incl.    8.22120     -0.21179149     +0.47038188             
P   3.63           H   25.14          G   0.15           U   9                  
Residuals in seconds of arc
230911 F52  0.2-  0.0     230911 033  0.0   0.3+    230914 033  0.4+  0.1+
230911 F52  0.0   0.2+    230911 033  0.2+  0.5+    230914 033  0.0   0.3-
230911 F52  0.1-  0.3+    230911 033  0.3+  0.0     230914 033  0.1-  0.3-
230911 F52  0.1+  0.1+    230912 T14  0.0   0.0     230915 291  0.0   0.4+
230911 F52  0.0   0.1-    230912 T14  0.0   0.1+    230915 291  0.1+  0.0
230911 F52  0.0   0.1-    230912 T14  0.1+  0.0     230915 291  0.1-  0.3-

Ephemeris:
2023 RY9                 a,e,i = 2.36, 0.52, 8                   q = 1.1268
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 08 16    21 02 02.9 -35 14 09   0.1275  1.1314   157.1    20.4    21.9
...
2023 08 31    21 57 44.0 -10 20 40   0.1210  1.1292   170.7     8.3    21.4
...
2023 09 08    22 22 18.9 +02 13 40   0.1346  1.1392   166.8    11.7    21.8
...
2023 09 14    22 37 53.8 +09 29 33   0.1516  1.1515   162.2    15.5    22.2
2023 09 15    22 40 16.7 +10 30 34   0.1549  1.1539   161.6    16.0    22.3
2023 09 16    22 42 36.3 +11 28 25   0.1584  1.1565   160.9    16.5    22.3
...
2023 09 22    22 55 31.0 +16 13 54   0.1815  1.1740   157.8    18.9    22.7
...
2023 09 30    23 10 29.1 +20 20 09   0.2182  1.2028   154.9    20.7    23.3
...
2023 10 15    23 34 19.0 +23 39 13   0.3038  1.2713   150.8    22.5    24.2

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-R221

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