[Iaude] MPEC K74: 2019 UW173 [a=42.62,e=0.15,i=21.3,H=9.73]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-K74                                  Issued 2024 May 23, 17:12 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

                                   2019 UW173                                   


Additional Observations:
     K19UH3W 1C2016 11 29.43867602 04 32.84 -06 47 02.1                WEK074T09
     K19UH3W 1C2016 11 29.44422502 04 32.82 -06 47 02.0                WEK074T09
     K19UH3W 1C2017 08 28.56365302 16 58.09 -05 15 50.9                WEK074T09
     K19UH3W 1C2017 08 28.61755902 16 57.98 -05 15 52.6                WEK074T09

Observer details:
T09 Subaru Telescope, Maunakea.  Observer .  Measurer S. Deen.  8.3-m Subaru
    Telescope + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
161129 T09 32.0+  5.3+    170828 T09 21.3+  3.1+    MPO811074    +137 days

Orbital elements:
2019 UW173                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M  41.66553              (2000.0)            P               Q                  
n   0.00354290     Peri.  259.47238     +0.88931109     +0.28187370             
a  42.6151170      Node    83.41695     -0.12114306     +0.90452477             
e   0.1477320      Incl.   21.25328     -0.44096502     +0.31997212             
P 278              H    9.73          G   0.15           U   5                  
Residuals in seconds of arc
161129 T09  0.0   0.1-    191027 T09  0.1-  0.1-    191127 T09  0.2+  0.0
161129 T09  0.0   0.0     191027 T09  0.0   0.3-    191127 T09  0.2-  0.0
170828 T09  0.0   0.0     191027 T09  0.1+  0.1+    191127 T09  0.0   0.0
170828 T09  0.0   0.0     191027 T09  0.1-  0.0     191127 T09  0.2+  0.1-
190929 T09  0.1+  0.0     191031 T09  0.0   0.1-    191204 T09  0.1-  0.5-
190929 T09  0.1+  0.3+    191031 T09  0.2-  0.2-    191204 T09  0.1+  0.3-
190929 T09  0.2-  0.1+    191031 T09  0.0   0.1-    191204 T09  0.0   0.1+
190929 T09  0.1-  0.6+    191101 T09  0.4-  0.3-    191204 T09  0.2+  0.1+
191023 T09  0.0   0.2+    191101 T09  0.0   0.2+    191204 T09  0.1+  0.2+
191023 T09  0.1+  0.2+    191101 T09  0.2-  0.1-    191222 T09  0.0   0.0
191023 T09  0.1+  0.2-    191101 T09  0.1-  0.0     191222 T09  0.1+  0.1-
191027 T09  0.1+  0.0     191101 T09  0.0   0.1+    191222 T09  0.1-  0.2+
191027 T09  0.0   0.1-    191127 T09  0.1-  0.1-    191222 T09  0.2+  0.1-

Ephemeris:
2019 UW173               a,e,i = 42.62, 0.15, 21                 q = 36.3195
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 23    02 46 35.6 +00 40 00  39.3713 38.4058    16.0     0.4    25.7
...
2024 05 08    02 48 13.2 +00 48 55  39.3772 38.4106    16.5     0.4    25.7
...
2024 05 16    02 49 05.2 +00 53 02  39.3554 38.4132    21.0     0.5    25.7
...
2024 05 22    02 49 43.5 +00 55 48  39.3282 38.4151    25.3     0.6    25.7
2024 05 23    02 49 49.8 +00 56 14  39.3227 38.4155    26.0     0.7    25.7
2024 05 24    02 49 56.1 +00 56 40  39.3171 38.4158    26.8     0.7    25.7
...
2024 05 30    02 50 33.1 +00 59 02  39.2778 38.4177    31.6     0.8    25.8
...
2024 06 07    02 51 20.4 +01 01 42  39.2123 38.4203    38.2     0.9    25.8
...
2024 06 22    02 52 40.5 +01 05 04  39.0527 38.4251    51.3     1.2    25.8

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-K74