[Iaude] MPEC U158: 2023 UM3 [a=1.28,e=0.48,i=4.1,H=25.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Oct 21 01:19:57 EDT 2023


M.P.E.C. 2023-U158                             Issued 2023 October 21, 05:17 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 UM3                                    


Observations:
     K23U03M* C2023 10 19.33619902 17 12.455+29 01 11.06         20.30GVEU158V00
     K23U03M  C2023 10 19.34172202 17 09.593+29 00 14.08         20.38GVEU158V00
     K23U03M  C2023 10 19.34722802 17 06.727+28 59 16.80         20.34GVEU158V00
     K23U03M  C2023 10 19.35273102 17 03.901+28 58 20.39         20.32GVEU158V00
     K23U03M  C2023 10 19.38833002 16 45.168+28 52 06.96         20.2 GVEU158H01
     K23U03M  C2023 10 19.39203002 16 43.300+28 51 28.84         20.2 GVEU158H01
     K23U03M  C2023 10 19.40229602 16 38.120+28 49 42.55         20.2 GVEU158H01
     K23U03M  C2023 10 19.41629202 16 31.107+28 47 17.86         20.3 GVEU158H01
     K23U03M mC2023 10 19.47837702 16 00.829+28 36 41.72         20.07GVEU158I52
     K23U03M mC2023 10 19.47904002 16 00.538+28 36 34.85         20.55GVEU158I52
     K23U03M mC2023 10 19.47969502 16 00.217+28 36 28.48         20.46GVEU158I52
     K23U03M mC2023 10 19.48035102 15 59.936+28 36 21.24         20.82GVEU158I52
     K23U03M KC2023 10 20.17996602 11 16.040+26 45 44.80         20.29GVEU158I52
     K23U03M KC2023 10 20.18204202 11 15.180+26 45 26.20               VEU158I52
     K23U03M KC2023 10 20.18620402 11 13.470+26 44 49.70               VEU158I52
     K23U03M  C2023 10 20.20710302 11 05.171+26 41 40.54         20.4 GVEU158654
     K23U03M  C2023 10 20.21512102 11 01.834+26 40 30.56         20.4 GVEU158654
     K23U03M KC2023 10 20.23489 02 10 51.29 +26 37 36.4          20.5 VqEU158734
     K23U03M KC2023 10 20.24107 02 10 48.66 +26 36 41.9          20.8 VqEU158734
     K23U03M KC2023 10 20.24707 02 10 46.14 +26 35 50.0          20.7 VqEU158734
     K23U03M KC2023 10 21.17531 02 05 25.62 +24 28 41.2          20.7 RVEU158691
     K23U03M KC2023 10 21.18127 02 05 23.59 +24 27 56.7          20.4 RVEU158691
     K23U03M KC2023 10 21.18724 02 05 21.49 +24 27 12.0          21.0 RVEU158691

Observer details:
654 Table Mountain Observatory, Wrightwood-PHMC.  Observers N. Evans, P. Choi,
    N. Saini, C. Zhai, R. Trahan, M. Shao.  1.0-m Reflector + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer M. J. Brucker.  0.9-m
    f/3 reflector + CCD.
734 Farpoint Observatory, Eskridge.  Observers D. Cromer, G. Hug, D. Goodin,
    R. Valentine.  Measurer D. Cromer.  0.69-m f/3.54 reflector + 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 UM3                                                 Earth MOID = 0.0269 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M  19.06691              (2000.0)            P               Q                  
n   0.67788230     Peri.   66.10441     +0.28992365     +0.95588440             
a   1.2834133      Node   220.84241     -0.90224166     +0.25653211             
e   0.4840903      Incl.    4.14017     -0.31922448     +0.14309537             
P   1.45           H   25.07          G   0.15           U   8                  
Residuals in seconds of arc
231019 V00  0.1+  0.2+    231019 I52  0.5-  0.0     231020 654  0.2+  0.1+
231019 V00  0.1+  0.3+    231019 I52  0.1-  0.0     231020 734  0.1-  0.2-
231019 V00  0.1-  0.1-    231019 I52  0.2-  0.4+    231020 734  0.3-  0.3-
231019 V00  0.1+  0.3+    231019 I52  0.3+  0.1-    231020 734  0.1-  0.6+
231019 H01  0.3-  0.1-    231020 I52  0.1-  0.4+    231021 691  0.1+  0.0
231019 H01  0.2-  0.1+    231020 I52  0.1-  0.0     231021 691  0.2+  0.0
231019 H01  0.2-  0.0     231020 I52  0.3+  0.1-    231021 691  0.5-  0.3-
231019 H01  0.2-  0.1+    231020 654  0.2+  0.2+

Ephemeris:
2023 UM3                 a,e,i = 1.28, 0.48, 4                   q = 0.6621
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 21    12 49 07.4 +09 44 37   0.1801  0.8337    17.0   159.4    31.7
...
2023 10 06    11 46 55.0 +35 53 18   0.06068 0.9564    42.9   134.6    25.1
...
2023 10 14    04 02 47.1 +53 20 40   0.04588 1.0236   123.2    54.6    20.4
...
2023 10 20    02 12 22.7 +27 13 31   0.08171 1.0735   160.9    17.7    20.7
2023 10 21    02 06 17.7 +24 51 47   0.08914 1.0818   164.3    14.4    20.8
2023 10 22    02 01 19.5 +22 50 52   0.09678 1.0900   167.2    11.6    20.9
...
2023 10 28    01 44 06.8 +15 14 35   0.1458  1.1389   174.0     5.3    21.6
...
2023 11 05    01 35 14.9 +10 39 28   0.2175  1.2022   164.0    13.2    22.9
...
2023 11 20    01 33 22.1 +07 39 36   0.3694  1.3144   147.3    24.0    24.6

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-U158




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