[Iaude] MPEC S117: 2023 SR2 [a=2.42,e=0.59,i=2.1,H=27.0]

Wed Sep 20 14:20:03 EDT 2023

M.P.E.C. 2023-S117                           Issued 2023 September 20, 18:18 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 SR2                                    


Observations:
     K23S02R*1C2023 09 19.40517403 51 31.187+01 52 54.12         19.98GVES117G96
     K23S02R 1C2023 09 19.41034703 51 25.621+01 55 10.81               VES117G96
     K23S02R 1C2023 09 19.41552903 51 20.045+01 57 27.54         20.10GVES117G96
     K23S02R 1C2023 09 19.42070603 51 14.569+01 59 41.57               VES117G96
     K23S02R KC2023 09 19.50040703 49 50.999+02 33 35.93         19.79GVES117V06
     K23S02R KC2023 09 19.50080803 49 50.574+02 33 45.97         19.86GVES117V06
     K23S02R KC2023 09 19.50121203 49 50.149+02 33 56.27         19.67GVES117V06
     K23S02R 1C2023 09 19.99607 03 43 58.31 +05 32 58.3          20.8 VXES117033
     K23S02R 1C2023 09 19.99671 03 43 57.89 +05 33 10.3          20.8 VXES117033
     K23S02R 1C2023 09 19.99758 03 43 57.26 +05 33 26.9          20.6 VXES117033
     K23S02R 1C2023 09 19.99876 03 43 56.38 +05 33 49.5          20.9 VXES117033
     K23S02R KB2023 09 20.09282303 42 50.22 +06 04 05.9          20.4 GVES117I93
     K23S02R KB2023 09 20.09733403 42 46.79 +06 05 29.7          20.9 GVES117I93
     K23S02R KB2023 09 20.10183503 42 43.40 +06 06 52.6          20.5 GVES117I93
     K23S02R  C2023 09 20.35539703 40 21.007+07 20 43.08         20.7 GVES117654
     K23S02R  C2023 09 20.36358803 40 15.504+07 22 57.45         20.7 GVES117654
     K23S02R  C2023 09 20.38035303 40 04.189+07 27 30.93         20.7 GVES117654
     K23S02R  C2023 09 20.38830303 39 58.794+07 29 39.74         20.7 GVES117654

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.
654 Table Mountain Observatory, Wrightwood-PHMC.  Observers N. Evans, P. Choi,
    N. Saini, C. Zhai, R. Trahan, M. Shao.  1.0-m Reflector + CCD.
G96 Mt. Lemmon Survey.  Observer J. K. Hogan.  Measurers E. J. Christensen, D.
    Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J.
    K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
    Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K
    CCD.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CMO.
V06 Catalina Sky Survey-Kuiper.  Observer K. W. Wierzchos.  Measurers E. J.
    Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
    Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos.  1.55-m
    reflector + 1K CCD.

Orbital elements:
2023 SR2                                                 Earth MOID = 0.0070 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M   2.97398              (2000.0)            P               Q                  
n   0.26228552     Peri.  329.64600     +0.90257258     +0.43052672             
a   2.4170548      Node     4.85608     -0.38733908     +0.81511316             
e   0.5925192      Incl.    2.08447     -0.18796588     +0.38760455             
P   3.76           H   27.05          G   0.15           U   8                  
Residuals in seconds of arc
230919 G96  0.9+  0.2-    230919 V06  0.1-  0.1+    230920 I93  0.2-  0.5+
230919 G96  0.1+  0.4+    230919 033  0.9-  0.5+    230920 I93  0.1+  0.4+
230919 G96  0.8-  1.2+    230919 033  0.0   0.0     230920 654  0.1+  0.0
230919 G96  0.4-  0.2-    230919 033  0.3+  0.3-    230920 654  0.0   0.1-
230919 V06  0.2+  0.2-    230919 033  0.3+  0.6-    230920 654  0.0   0.0
230919 V06  0.0   0.1-    230920 I93  0.1-  0.0     230920 654  0.1-  0.0

Ephemeris:
2023 SR2                 a,e,i = 2.42, 0.59, 2                   q = 0.9849
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 08 21    14 44 52.2 -27 20 27   0.1360  0.9971    79.9    92.4    26.0
...
2023 09 05    14 40 52.6 -31 28 26   0.06069 0.9859    66.6   110.2    25.1
...
2023 09 13    13 57 21.6 -44 09 12   0.02006 0.9964    59.5   119.5    23.4
...
2023 09 19    03 58 04.8 -01 22 00   0.01494 1.0115   116.4    62.9    20.2
2023 09 20    03 43 42.3 +05 39 24   0.01961 1.0146   120.5    58.6    20.7
2023 09 21    03 34 44.6 +09 55 08   0.02451 1.0179   123.2    55.7    21.1
...
2023 09 27    03 13 29.2 +18 55 46   0.05524 1.0405   132.2    45.5    22.6
...
2023 10 05    03 02 49.2 +21 41 12   0.09736 1.0782   141.6    35.2    23.6
...
2023 10 20    02 48 04.0 +22 22 55   0.1821  1.1678   158.9    17.9    24.6

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-S117