[Iaude] MPEC U179: 2023 UD4 [a=1.41,e=0.29,i=1.5,H=28.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Oct 21 16:14:50 EDT 2023


M.P.E.C. 2023-U179                             Issued 2023 October 21, 20:13 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 UD4                                    


Observations:
     K23U04D* C2023 10 20.22518 22 28 54.85 +10 51 29.1          17.61gUEU179I41
     K23U04D  C2023 10 20.22553 22 28 56.35 +10 51 58.9          17.61gUEU179I41
     K23U04D  C2023 10 20.22612 22 28 58.88 +10 52 49.3          18.24gUEU179I41
     K23U04D  C2023 10 20.22647 22 29 00.41 +10 53 19.0          18.24gUEU179I41
     K23U04D  C2023 10 20.26312 22 31 41.13 +11 45 38.6          17.75gUEU179I41
     K23U04D  C2023 10 20.26347 22 31 42.64 +11 46 07.9          17.75gUEU179I41
     K23U04D  C2023 10 20.26358 22 31 43.14 +11 46 17.2          17.67gUEU179I41
     K23U04D  C2023 10 20.26393 22 31 44.72 +11 46 46.9          17.67gUEU179I41
     K23U04D  C2023 10 21.40738101 05 26.026+41 49 44.15         17.59cVEU179T05
     K23U04D  C2023 10 21.41016501 05 52.781+41 53 00.46         16.88cVEU179T05
     K23U04D  C2023 10 21.41696801 06 58.068+42 00 55.55         17.29cVEU179T05
     K23U04D  C2023 10 21.45048801 12 21.931+42 38 21.48         17.05cVEU179T05
     K23U04D KC2023 10 21.76146702 12 38.82 +46 37 45.2          17.3 GVEU179G33
     K23U04D KC2023 10 21.76497602 13 16.72 +46 40 21.2          17.6 GVEU179G33
     K23U04D KB2023 10 21.78589402 17 02.595+46 55 50.73         17.1 GXEU179B72
     K23U04D KB2023 10 21.78821502 17 27.214+46 57 29.02         17.1 GXEU179B72
     K23U04D KB2023 10 21.79058402 17 52.267+46 59 08.67         17.6 GXEU179B72
     K23U04D KB2023 10 21.79709002 19 00.948+47 03 40.12         17.3 GXEU179B72
     K23U04D KB2023 10 21.79974402 19 28.900+47 05 29.46         17.7 GXEU179B72
     K23U04D KB2023 10 21.80242502 19 57.062+47 07 19.56         18.1 GXEU179B72
     K23U04D KB2023 10 21.80651302 21 06.06 +47 10 15.5          17.8 GXEU179958
     K23U04D KB2023 10 21.80979202 21 40.68 +47 12 31.3          18.0 GXEU179958
     K23U04D KB2023 10 21.81304002 22 14.96 +47 14 45.7          17.0 GXEU179958
     K23U04D KC2023 10 21.81671 02 22 39.58 +47 20 55.2          18.2 GVEU179104
     K23U04D KC2023 10 21.81779 02 22 50.69 +47 21 38.7          18.0 GVEU179104
     K23U04D KC2023 10 21.81887 02 23 01.87 +47 22 21.3          17.4 GVEU179104

Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurer P.
    Bacci.  0.60-m f/4.0 reflector + CCD.
958 Observatoire de Dax.  Observers P. Dupouy, J. Laborde.  Measurer P.
    Dupouy.  0.30-m f/5 Schmidt-Cassegrain + CMO.
B72 Soerth.  Observer B. Koch.  0.36-m f/7.6 reflector + CMO.
G33 Wickede.  Observer G. Neue.  0.27-m Schmidt-Cassegrain + CCD.
I41 Palomar Mountain--ZTF.  Observers K. Venkataramani, T. Prince, G. Helou,
    Q.-Z. Ye, D. Kulkarni, V. Swain, C. Y. Hsu, Y. Cheng, T. Batra.  Measurers
    F. Masci, D. Shupe, K. Venkataramani, Q.-Z. Ye.  1.2-m f/2.44 Oschin-
    Schmidt + CCD.
T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, R. Siverd, J. Tonry, H.
    Weiland.  Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A. Lawrence,
    J. Robinson, R. Siverd, J. Tonry, H. Weiland.  0.5-m Reflector + CCD.

Orbital elements:
2023 UD4                                                 Earth MOID = 0.0021 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Bell                    
M 337.69962              (2000.0)            P               Q                  
n   0.58979526     Peri.    3.34141     +0.89316120     -0.44962044             
a   1.4082136      Node    23.38636     +0.41202585     +0.80894522             
e   0.2908267      Incl.    1.47594     +0.18027136     +0.37874673             
P   1.67           H   28.18          G   0.15           U   7                  
Residuals in seconds of arc
231020 I41  0.5-  0.3-    231021 T05  0.5+  0.0     231021 B72  0.5+  0.4+
231020 I41  0.5-  0.2-    231021 T05  0.5+  0.2+    231021 B72  0.4+  0.6+
231020 I41  0.5-  0.0     231021 T05  0.4-  0.0     231021 958  0.9-  0.5-
231020 I41  0.1-  0.0     231021 G33  1.4-  0.6-    231021 958  0.6-  0.3-
231020 I41  0.9+  1.1+    231021 G33  0.1+  0.8-    231021 958  0.5+  0.8+
231020 I41  0.1+  0.2+    231021 B72  0.7+  0.6+    231021 104  0.5+  0.5+
231020 I41  0.2+  0.0     231021 B72  0.7+  0.5+    231021 104  0.2+  0.9+
231020 I41  0.3+  0.5-    231021 B72  0.4+  0.4+    231021 104  0.7+  0.6+
231021 T05  0.5-  0.1-    231021 B72  0.4+  0.5+

Ephemeris:
2023 UD4                 a,e,i = 1.41, 0.29, 1                   q = 0.9987
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 21    19 49 44.1 -32 13 39   0.06845 1.0355   115.4    61.1    24.6
...
2023 10 06    19 53 27.0 -30 38 20   0.03537 1.0080   102.2    75.9    23.6
...
2023 10 14    20 12 44.6 -26 25 51   0.01702 1.0006    99.4    79.6    22.1
...
2023 10 20    22 12 02.8 +06 06 05   0.0041950.9987   129.3    50.5    18.2
2023 10 21    23 58 02.5 +31 51 36   0.0033870.9986   148.1    31.8    17.2
2023 10 22    02 52 07.2 +48 49 20   0.0041090.9986   139.4    40.5    17.8
...
2023 10 28    07 02 25.8 +38 19 21   0.01695 0.9998   110.5    68.6    21.7
...
2023 11 05    07 25 52.3 +34 34 12   0.03544 1.0063   113.4    64.7    23.2
...
2023 11 20    07 25 32.0 +32 53 54   0.06941 1.0325   128.1    48.9    24.3

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-U179




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