[Iaude] MPEC T135: 2017 UD1 [a=1.13,e=0.15,i=22.2,H=24.88]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Oct 10 10:17:10 EDT 2023


M.P.E.C. 2023-T135                             Issued 2023 October 10, 14:15 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

                                    2017 UD1                                    


                           Revision to MPEC 2017-U73                            

Additional Observations:
     K17U01D  C2023 10 04.26943 23 26 28.98 +38 26 22.3          21.8 GVET135G96
     K17U01D  C2023 10 04.27476 23 26 28.87 +38 25 46.7          21.5 GVET135G96
     K17U01D  C2023 10 04.28127 23 26 28.77 +38 25 05.2          21.8 GVET135G96
     K17U01D  C2023 10 04.28650 23 26 28.66 +38 24 31.3          21.5 GVET135G96
     K17U01D KC2023 10 05.15789723 26 39.689+36 47 11.80         21.71GVET135I52
     K17U01D KC2023 10 05.17283223 26 39.462+36 45 29.56         21.42GVET135I52
     K17U01D KC2023 10 05.17979723 26 39.350+36 44 42.04         21.68GVET135I52
     K17U01D  C2023 10 08.29514623 27 28.776+29 52 55.44               VET135F52
     K17U01D  C2023 10 08.30563623 27 28.672+29 51 22.19         21.12GVET135F52
     K17U01D  C2023 10 08.31615723 27 28.609+29 49 48.47               VET135F52
     K17U01D 1C2023 10 10.20778823 28 16.352+24 44 44.63         21.00GVET135G96
     K17U01D 1C2023 10 10.21813523 28 16.320+24 42 57.89         20.91GVET135G96
     K17U01D 1C2023 10 10.22330923 28 16.327+24 42 03.85         21.36GVET135G96

Observer details:
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
    Lowe, P. Minguez, A. Schultz, I. Smith.  Measurers S. Chastel, J.
    Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m
    Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observers G. J. Leonard, D. Rankin.  Measurers B.
    Gray, D. Rankin, F. C. Shelly, 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, R. L. Seaman, K. W. Wierzchos.  1.5-m
    reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. Rankin.  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.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
231004 G96 53.9- 15.6-    231010 G96 65.2- 15.1-    E2023-Q57   -0.00 days

Orbital elements:
2017 UD1                                                 Earth MOID = 0.0764 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 266.81378              (2000.0)            P               Q                  
n   0.82048176     Peri.  261.70416     -0.19911873     -0.97026712             
a   1.1300303      Node   201.34828     +0.97982546     -0.19466010             
e   0.1544196      Incl.   22.20869     +0.01714045     -0.14383729             
P   1.20           H   24.88          G   0.15           U   0                  
Residuals in seconds of arc
171016 G96  0.4-  0.1+    171017 I52  0.0   0.1+    180408 I52  0.2-  0.3-
171016 G96  0.2-  0.2+    171017 I52  0.1-  0.2+    180408 I52  0.1-  0.1+
171016 G96  0.2-  0.1+    171017 I52  0.0   0.2+    180420 H21  0.4+  0.2-
171016 G96  0.2-  0.4-    171017 I52  0.2+  0.1+    180420 H21  0.1+  0.0
171016 I52  0.1-  0.4+    171017 K63  0.8+  0.7-    180420 H21  0.7+  0.0
171016 I52  0.3+  0.2+    171017 K63  0.9+  0.0     231004 G96  0.1-  0.6+
171016 I52  0.2+  0.1-    171017 K63  0.7+  0.5-    231004 G96  0.1-  0.5-
171016 I52  0.1+  0.4+    171019 291  0.4+  0.1+    231004 G96  0.3+  0.2+
171017 G96  0.0   0.1-    171019 291  0.3+  0.3-    231004 G96  0.3+  0.2+
171017 G96  0.3-  0.4-    171019 291  0.1+  0.1+    231005 I52  0.0   0.0
171017 G96  0.0   0.4+    171024 807  0.0   0.1+    231005 I52  0.0   0.0
171017 G96  0.1+  0.3+    171024 807  0.3-  0.0     231005 I52  0.0   0.3+
171017 926  0.1+  0.1-    171024 807  0.4-  0.5-    231008 F52  0.0   0.0
171017 926  0.0   0.1+    171030 807  0.0   0.2-    231008 F52  0.1-  0.0
171017 926  0.2-  0.0     171030 807  0.1+  0.3-    231008 F52  0.4+  0.1+
171017 I52  0.1-  0.1+    171030 807  0.1+  0.3-    231010 G96  0.2+  0.2+
171017 I52  0.2+  0.1+    180408 I52  0.5-  0.3-    231010 G96  0.2-  0.4+
171017 I52  0.2+  0.2+    180408 I52  0.4-  0.2-    231010 G96  0.0   0.0

Ephemeris:
2017 UD1                 a,e,i = 1.13, 0.15, 22                  q = 0.9555
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 10    23 31 16.0 +56 07 29   0.2890  1.1729   118.5    49.0    24.4
...
2023 09 25    23 27 11.7 +49 51 22   0.1927  1.1367   130.0    42.5    23.2
...
2023 10 03    23 26 22.8 +40 35 29   0.1459  1.1166   140.1    35.1    22.4
...
2023 10 09    23 27 42.8 +28 04 35   0.1168  1.1015   149.6    27.3    21.6
2023 10 10    23 28 09.4 +25 20 39   0.1128  1.0989   151.1    26.1    21.5
2023 10 11    23 28 40.4 +22 24 26   0.1091  1.0964   152.4    25.0    21.4
...
2023 10 17    23 33 28.9 +00 53 09   0.09537 1.0813   151.0    26.5    21.1
...
2023 10 25    23 45 03.0 -29 43 14   0.1036  1.0614   127.9    47.7    21.9
...
2023 11 09    00 22 09.8 -59 59 37   0.1683  1.0263    97.5    73.2    23.6

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-T135




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