[Iaude] MPEC U170: 2023 US3 [a=1.65,e=0.31,i=17.0,H=24.0]

Sat Oct 21 11:09:33 EDT 2023

M.P.E.C. 2023-U170                             Issued 2023 October 21, 15:07 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2023 US3                                    


Observations:
     K23U03S* C2023 10 17.51947303 34 40.087-02 23 14.50         21.78wXEU170F51
     K23U03S  C2023 10 17.53120303 34 38.604-02 22 08.70         21.64wXEU170F51
     K23U03S  C2023 10 17.54226603 34 37.175-02 21 05.70         22.09wXEU170F51
     K23U03S  C2023 10 17.55331403 34 35.793-02 20 03.66         21.54wXEU170F51
     K23U03S  C2023 10 17.63959403 34 24.977-02 11 56.15         22.00GVEU170F51
     K23U03S  C2023 10 17.64023703 34 24.882-02 11 51.63         21.59GVEU170F51
     K23U03S 3C2023 10 18.46052203 32 56.725-00 54 04.74         21.37GVEU170T14
     K23U03S 3C2023 10 18.46315603 32 56.380-00 53 49.69         21.46GVEU170T14
     K23U03S 3C2023 10 18.46413203 32 56.251-00 53 44.11         21.45GVEU170T14
     K23U03S  C2023 10 18.46863 03 32 53.54 -00 53 27.9          21.6 GVEU170I52
     K23U03S KC2023 10 18.46863203 32 53.540-00 53 27.90         21.62GVEU170I52
     K23U03S  C2023 10 18.47411 03 32 52.79 -00 52 56.4                VEU170I52
     K23U03S KC2023 10 18.47411203 32 52.790-00 52 56.40               VEU170I52
     K23U03S  C2023 10 18.48085 03 32 51.94 -00 52 17.8          21.2 GVEU170I52
     K23U03S KC2023 10 18.48085003 32 51.940-00 52 17.80         21.19GVEU170I52
     K23U03S KC2023 10 18.48498503 32 51.400-00 51 54.10         21.77GVEU170I52
     K23U03S  C2023 10 18.48499 03 32 51.40 -00 51 54.1          21.8 GVEU170I52
     K23U03S KC2023 10 21.28980003 27 17.24 +03 39 41.6          21.4 GXEU170858
     K23U03S KC2023 10 21.32182603 27 12.66 +03 42 50.1          21.8 GXEU170858

Observer details:
858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.51-m f/8.1
    Schmidt-Cassegrain + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, 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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers E. C. Beshore, 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, F. C. Shelly, K. W. Wierzchos.  1.0-m
    f/2.0 prime focus + CCD, 1.0-m prime focus + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea.  Observers R. Wainscoat, H.
    Januszewski, T. Burdullis.  Measurers R. Weryk, R. Wainscoat.  3.6-m f/4.1
    reflector + CCD.

Orbital elements:
2023 US3                                                 Earth MOID = 0.1665 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 353.51436              (2000.0)            P               Q                  
n   0.46465751     Peri.  329.94686     +0.97693986     -0.11425985             
a   1.6508746      Node    37.96565     +0.20062743     +0.78028594             
e   0.3116995      Incl.   17.04926     -0.07305572     +0.61489718             
P   2.12           H   24.01          G   0.15           U   9                  
Residuals in seconds of arc
231017 F51  0.1-  0.2+    231017 F51  0.1-  0.3+    231018 I52  0.3-  0.1+
231017 F51  0.1+  0.2-    231018 T14  0.0   0.0     231018 I52  0.1-  0.2+
231017 F51  0.2-  0.3+    231018 T14  0.0   0.0     231018 I52  0.3-  0.2+
231017 F51  0.2+  0.1-    231018 T14  0.0   0.0     231021 858  0.0   0.1-
231017 F51  0.1+  0.6-    231018 I52  0.4+  0.0     231021 858  0.1-  0.1+

Ephemeris:
2023 US3                 a,e,i = 1.65, 0.31, 17                  q = 1.1363
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 21    03 50 42.6 -31 32 35   0.2533  1.1376   115.8    52.6    23.2
...
2023 10 06    03 49 24.2 -18 12 06   0.2037  1.1392   129.0    43.0    22.5
...
2023 10 14    03 40 29.3 -07 43 25   0.1854  1.1466   140.3    33.7    22.1
...
2023 10 20    03 29 55.7 +01 34 17   0.1786  1.1549   150.6    25.1    21.7
2023 10 21    03 27 52.7 +03 11 41   0.1782  1.1566   152.3    23.6    21.7
2023 10 22    03 25 45.2 +04 49 42   0.1780  1.1582   154.1    22.0    21.6
...
2023 10 28    03 11 42.3 +14 33 26   0.1817  1.1697   164.2    13.4    21.4
...
2023 11 05    02 51 02.3 +26 01 39   0.1996  1.1882   169.0     9.2    21.5
...
2023 11 20    02 17 27.5 +39 31 36   0.2660  1.2318   153.4    21.1    22.6

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-U170