[Iaude] MPEC U135: 2023 US2 [a=0.84,e=0.28,i=20.1,H=27.0]

Fri Oct 20 10:02:42 EDT 2023

M.P.E.C. 2023-U135                             Issued 2023 October 20, 14:01 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 US2                                    


Observations:
     K23U02S* C2023 10 19.26368223 55 43.964+18 52 26.18               VEU135V00
     K23U02S  C2023 10 19.26918923 55 35.591+18 53 37.18         20.85GVEU135V00
     K23U02S  C2023 10 19.27469423 55 27.505+18 54 46.04         21.48GVEU135V00
     K23U02S  C2023 10 19.28019623 55 19.024+18 55 58.30         20.87GVEU135V00
     K23U02S  C2023 10 19.30928223 54 34.503+19 01 58.58         20.7 GVEU135H01
     K23U02S  C2023 10 19.31555423 54 25.190+19 03 17.45         20.3 GVEU135H01
     K23U02S KC2023 10 19.31752923 54 22.856+19 03 50.33         20.82GVEU135I52
     K23U02S KC2023 10 19.31966523 54 19.670+19 04 17.36         20.78GVEU135I52
     K23U02S KC2023 10 19.32180323 54 16.499+19 04 44.29         20.91GVEU135I52
     K23U02S KC2023 10 19.32396023 54 13.295+19 05 11.22         21.02GVEU135I52
     K23U02S  C2023 10 19.32770923 54 07.184+19 05 49.81         21.0 GVEU135H01
     K23U02S  C2023 10 19.33062623 54 02.880+19 06 26.42         20.7 GVEU135H01
     K23U02S KC2023 10 19.37890523 52 52.907+19 16 30.25         20.70GVEU135I52
     K23U02S KC2023 10 19.38106523 52 49.814+19 16 57.14         20.83GVEU135I52
     K23U02S KC2023 10 19.38321523 52 46.686+19 17 23.06         20.72GVEU135I52
     K23U02S KC2023 10 19.38537123 52 43.590+19 17 49.27         20.55GVEU135I52
     K23U02S KC2023 10 20.11673023 37 32.34 +21 33 07.5          21.3 GXEU135858
     K23U02S KC2023 10 20.12413323 37 24.337+21 34 27.77         21.57GVEU135I52
     K23U02S KC2023 10 20.12654823 37 20.29 +21 34 45.1          20.4 GXEU135858
     K23U02S KC2023 10 20.12745123 37 20.219+21 35 00.96         21.38GVEU135I52
     K23U02S KC2023 10 20.13075823 37 16.194+21 35 33.94         21.37GVEU135I52
     K23U02S KC2023 10 20.13735623 37 06.98 +21 36 32.0          20.6 GXEU135858

Observer details:
858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.51-m f/8.1
    Schmidt-Cassegrain + CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers G. J. Leonard, 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.
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 US2                                                 Earth MOID = 0.0228 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M  86.03208              (2000.0)            P               Q                  
n   1.27277653     Peri.  210.70404     -0.60456294     +0.78522215             
a   0.8432725      Node    22.96399     -0.64321480     -0.38207461             
e   0.2804302      Incl.   20.07226     -0.46987060     -0.48728345             
P   0.77           H   27.02          G   0.15           U   7                  
Residuals in seconds of arc
231019 V00  0.3-  0.3+    231019 I52  0.1+  0.0     231020 858  0.3-  0.2+
231019 V00  0.5-  0.1+    231019 I52  0.1+  0.1-    231020 I52  0.2+  0.0
231019 V00 (3.1+  2.0-)   231019 H01  0.1-  0.0     231020 858  0.0   0.1-
231019 V00  0.9+  0.5-    231019 H01  0.2-  0.2+    231020 I52  0.4-  0.0
231019 H01  0.1+  0.0     231019 I52  0.7-  0.1+    231020 I52  0.2+  0.0
231019 H01  0.2+  0.1-    231019 I52  0.4-  0.7+    231020 858  0.4-  0.4-
231019 I52  0.3+  0.3-    231019 I52  0.9-  0.5+
231019 I52  0.1+  0.1-    231019 I52  0.9-  0.5+

Ephemeris:
2023 US2                 a,e,i = 0.84, 0.28, 20                  q = 0.6068
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 20    08 40 32.9 -36 00 03   0.1685  0.9243    57.2   113.9    27.4
...
2023 10 05    07 38 14.3 -37 05 56   0.07231 0.9852    76.0   100.0    24.9
...
2023 10 13    04 34 46.1 -27 13 12   0.02752 1.0119   119.6    59.0    21.4
...
2023 10 19    00 02 17.9 +17 53 18   0.03561 1.0291   156.6    22.6    20.9
2023 10 20    23 39 44.5 +21 14 33   0.04104 1.0317   149.8    29.0    21.4
2023 10 21    23 22 01.6 +23 39 24   0.04686 1.0342   144.5    34.0    21.9
...
2023 10 27    22 28 05.6 +29 50 20   0.08525 1.0481   127.5    48.8    23.6
...
2023 11 04    22 05 53.6 +32 05 40   0.1389  1.0627   117.2    56.1    24.9
...
2023 11 19    22 00 52.4 +33 37 06   0.2382  1.0778   105.8    62.0    26.3

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-U135