[Iaude] MPEC U169: 2023 UR3 [a=0.97,e=0.18,i=12.7,H=26.2]

Sat Oct 21 10:34:26 EDT 2023

M.P.E.C. 2023-U169                             Issued 2023 October 21, 14:32 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 UR3                                    


Observations:
     K23U03R* C2023 10 19.46865804 10 41.187+29 10 02.97         18.7 GVEU169U68
     K23U03R  C2023 10 19.47199904 10 31.075+29 11 44.41         18.7 GVEU169U68
     K23U03R  C2023 10 19.49004704 09 36.752+29 20 49.87         18.8 GVEU169U68
     K23U03R  C2023 10 19.49338904 09 26.726+29 22 30.21         18.8 GVEU169U68
     K23U03R KC2023 10 20.24264603 35 23.91 +34 54 50.3          17.9 GXEU169858
     K23U03R KC2023 10 20.25246603 34 56.26 +34 58 44.2          18.1 GXEU169858
     K23U03R KC2023 10 20.26316403 34 26.09 +35 02 55.7                XEU169858
     K23U03R  C2023 10 20.50886303 22 58.120+36 30 55.22               VEU169V00
     K23U03R  C2023 10 20.51254503 22 48.187+36 32 05.82         19.31GVEU169V00
     K23U03R  C2023 10 20.51621503 22 37.988+36 33 18.07         19.45GVEU169V00
     K23U03R  C2023 10 20.51988703 22 28.222+36 34 27.34         20.16GVEU169V00
     K23U03R KC2023 10 21.21507802 54 25.844+39 55 45.30         19.25GVEU169I52
     K23U03R KC2023 10 21.21559402 54 24.577+39 55 53.22         19.77GVEU169I52
     K23U03R KC2023 10 21.21611502 54 23.267+39 56 01.50         19.42GVEU169I52
     K23U03R KC2023 10 21.21662502 54 22.007+39 56 09.38         19.24GVEU169I52
     K23U03R KC2023 10 21.27031602 52 06.15 +40 09 37.4          19.2 GXEU169858
     K23U03R KC2023 10 21.27491002 51 54.68 +40 10 45.0          19.2 GXEU169858
     K23U03R KC2023 10 21.27950102 51 43.23 +40 11 52.2          19.4 GXEU169858

Observer details:
858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.16-m f/7
    Refractor + CCD, 0.51-m f/8.1 Schmidt-Cassegrain + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer J. B. Fazekas.
    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
    prime focus + CCD.
U68 JPL SynTrack Robotic Telescope, Auberry.  Observers N. Saini, C. Zhai, R.
    Trahan, M. Zhan, M. Shao.  0.28-m Reflector + CCD.
V00 Kitt Peak-Bok.  Observer R. A. Mastaler.  Measurers M. J. Brucker, C. E.
    Woodward, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, H. Groeller, J.
    K. Hogan, R. A. Kowalski, S. M. Larson, C. Lejoly, G. J. Leonard, R. A.
    Mastaler, R. S. McMillan, D. Rankin, R. L. Seaman, A. Serrano, F. C.
    Shelly, K. W. Wierzchos.  2.25-m reflector + 4x4K mosaic CCD.

Orbital elements:
2023 UR3                                                 Earth MOID = 0.0090 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M  56.92959              (2000.0)            P               Q                  
n   1.03656830     Peri.  246.33148     +0.02316778     +0.99525787             
a   0.9669502      Node    25.54598     -0.81876020     +0.07311391             
e   0.1781195      Incl.   12.65464     -0.57366802     -0.06415705             
P   0.95           H   26.27          G   0.15           U   7                  
Residuals in seconds of arc
231019 U68  0.2+  0.2+    231020 858  0.1-  0.6+    231021 I52  0.2+  0.1-
231019 U68  0.2-  0.0     231020 V00  0.7-  0.3+    231021 I52  0.1-  0.1+
231019 U68  0.1-  0.1+    231020 V00  0.5+  0.3-    231021 I52  0.0   0.0
231019 U68  0.1+  0.0     231020 V00 (2.2-  1.2+)   231021 858  0.3-  0.3+
231020 858  0.6-  0.1+    231020 V00  0.2+  0.1-    231021 858  0.4-  0.3+
231020 858  0.4-  1.0+    231021 I52  0.0   0.1+    231021 858  0.4-  0.3+

Ephemeris:
2023 UR3                 a,e,i = 0.97, 0.18, 13                  q = 0.7947
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 21    10 08 47.3 -41 04 20   0.1296  0.9226    48.0   126.0    27.0
...
2023 10 06    09 14 50.5 -38 03 03   0.05928 0.9699    58.0   119.0    24.8
...
2023 10 14    07 37 55.5 -21 52 11   0.02535 0.9943    81.6    97.0    21.8
...
2023 10 20    03 46 04.9 +33 18 15   0.02007 1.0119   142.2    37.1    19.3
2023 10 21    03 02 43.0 +39 00 34   0.02292 1.0148   146.0    33.3    19.5
2023 10 22    02 25 16.3 +42 34 04   0.02637 1.0176   146.9    32.2    19.8
...
2023 10 28    00 27 29.6 +47 13 46   0.05210 1.0341   139.8    38.3    21.5
...
2023 11 05    23 43 22.7 +46 22 10   0.09019 1.0546   132.3    44.0    22.9
...
2023 11 20    23 31 24.1 +44 33 22   0.1645  1.0875   123.4    49.4    24.4

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-U169