[Iaude] MPEC Q41: 2017 UY42 [a=1.36,e=0.57,i=4.9,H=21.2,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Aug 22 04:15:17 EDT 2018


M.P.E.C. 2018-Q41                                Issued 2018 Aug. 22, 08:12 UT
 
     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  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


                                   2017 UY42
 
                          Revision to MPEC 2017-U283
 
Additional Observations:
     K17U42Y  C2018 08 11.37074020 58 34.660-11 52 17.80         23.18GVEQ041T12
     K17U42Y  C2018 08 11.37419020 58 34.241-11 52 19.41         23.35GVEQ041T12
     K17U42Y  C2018 08 14.34879120 52 44.721-12 13 41.52         23.26GVEQ041T12
     K17U42Y  C2018 08 14.35271820 52 44.256-12 13 43.09         23.12GVEQ041T12
 
Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers D. J. Tholen,
    D. Hung.  Measurer D. J. Tholen.  2.24-m f/10.1 reflector + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
180811 T12  5.9-  1.8-    180814 T12  6.0-  1.7-    MPO435142   +0.0014 day
 
Orbital elements:
2017 UY42                                           PHA, Earth MOID = 0.0417 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M  34.03194              (2000.0)            P               Q
n   0.62338407     Peri.  230.86103     -0.91432029     -0.39672148
a   1.3571637      Node   285.62964     +0.39275555     -0.81953813
e   0.5706287      Incl.    4.85039     +0.09880023     -0.41348437
P   1.58           H   21.2           G   0.15           U   5
Residuals in seconds of arc
171027 G96  0.1-  0.1-    171029 711  0.4-  0.1-    171115 I52  0.4+  0.5-
171027 G96  0.1+  0.1-    171029 H36  0.3-  0.3+    171115 I52  0.1+  0.6-
171027 G96  0.2-  0.0     171029 G96  0.1+  0.1-    171115 I52  0.2+  0.5-
171027 G96  0.1-  0.1+    171029 G96  0.1+  0.3-    171115 I52  0.3-  0.7-
171027 V06  0.3+  0.2-    171029 G96  0.4+  0.1-    171115 G96  0.2-  0.6-
171027 658  0.1-  0.8+    171029 H36  0.2-  0.3+    171115 G96  0.1+  0.8-
171027 V06  0.4+  0.3-    171029 G96  0.3-  0.2-    171115 G96  0.2+  0.2-
171027 V06  0.3+  0.2-    171029 J95  0.2+  0.1-    171115 G96  0.4+  0.3-
171027 658  0.1-  0.9+    171029 J95  0.0   0.4-    171119 691  0.6-  0.3-
171027 V06  0.2+  0.4-    171029 J95  0.1+  0.1-    171119 691  0.0   0.3+
171027 658  0.2-  0.7+    171030 G96  0.3+  0.3-    171119 691  0.3-  0.2-
171028 V06  0.5+  0.3+    171030 G96  0.4+  0.1-    171122 691  0.3-  0.3+
171028 V06  0.7+  0.0     171030 G96  0.0   0.2-    171122 691  0.4+  0.9+
171028 V06  0.2+  0.5-    171030 G96  0.1+  0.2-    171122 691  0.0   0.4+
171028 V06  0.4+  0.2-    171030 711  0.5+  0.7+    171123 691  0.1+  0.0
171028 926  0.0   0.2+    171030 711  1.4+  0.6+    171123 691  0.2+  0.3-
171028 926  0.0   0.0     171030 711  0.5+  0.6+    171123 691  0.3-  0.3-
171028 926  0.3-  0.0     171030 926  0.0   0.1+    171125 691  0.1+  0.5-
171028 658  0.1+  0.8+    171030 926  0.0   0.0     171125 691  0.1-  0.2+
171028 658  0.0   0.4+    171030 926  0.2-  0.1+    171125 691  0.1-  0.1+
171028 658  0.2+  0.3+    171106 291  0.0   0.1+    171207 691 (0.5-  2.1-)
171028 711  0.0   0.4+    171106 291  0.2+  0.0     171207 691  0.1-  0.1+
171028 711  0.1-  0.1+    171106 291  0.0   0.5+    171207 691  0.3+  0.2+
171028 711  0.0   0.3+    171111 I52  0.1+  0.5-    180811 T12  0.1-  0.1+
171029 691  0.7-  0.2+    171111 I52  0.2+  0.5-    180811 T12  0.0   0.0
171029 691  0.0   0.1+    171111 I52  0.4+  0.4-    180814 T12  0.1-  0.0
171029 691  0.3-  0.1-    171111 I52  0.3+  0.1+    180814 T12  0.1-  0.1+
171029 H36  0.3-  0.2-    171114 204  0.2+  1.4-
171029 711  0.2-  0.0     171114 204  0.4-  0.1-

Ephemeris:
2017 UY42                a,e,i = 1.36, 0.57, 5                   q = 0.5827
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 23    21 38 42.6 -09 30 18   0.9196  1.8923   155.7    12.8    23.2
...
2018 08 07    21 07 30.7 -11 19 45   0.9409  1.9531   174.8     2.7    22.8
...
2018 08 15    20 51 30.2 -12 18 11   0.9783  1.9817   168.8     5.7    23.1
...
2018 08 21    20 40 47.3 -12 58 07   1.0181  2.0014   160.8     9.6    23.4
2018 08 22    20 39 08.5 -13 04 20   1.0256  2.0046   159.5    10.2    23.4
2018 08 23    20 37 32.4 -13 10 25   1.0334  2.0077   158.2    10.8    23.5
...
2018 08 29    20 28 52.8 -13 43 58   1.0850  2.0255   150.4    14.3    23.7
...
2018 09 06    20 20 02.0 -14 20 30   1.1659  2.0470   140.5    18.2    24.0
...
2018 09 21    20 11 44.5 -15 04 22   1.3461  2.0807   123.9    23.6    24.5

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Q41



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