[Iaude] MPEC X27: 2021 WU5 [a=2.95,e=0.60,i=3.2,H=22.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 1 16:39:15 EST 2021


M.P.E.C. 2021-X27                              Issued 2021 December 1, 21:37 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

                                    2021 WU5                                    


Observations:
     K21W05U  C2021 11 28.46226 06 53 39.88 +24 17 11.9                VEX027G96
     K21W05U  C2021 11 28.46743 06 53 40.82 +24 17 13.9          21.8 GVEX027G96
     K21W05U  C2021 11 28.47263 06 53 41.75 +24 17 16.3                VEX027G96
     K21W05U* C2021 11 30.42453906 59 59.14 +24 30 59.3          21.13GVEX027V00
     K21W05U  C2021 11 30.42940507 00 00.04 +24 31 01.3          21.01GVEX027V00
     K21W05U  C2021 11 30.43425807 00 00.95 +24 31 03.3          21.08GVEX027V00
     K21W05U  C2021 11 30.43912207 00 01.85 +24 31 05.3          21.11GVEX027V00
     K21W05U KC2021 11 30.47564 07 00 08.68 +24 31 20.5                oEX027691
     K21W05U KC2021 11 30.48176 07 00 09.80 +24 31 22.8          21.0 RoEX027691
     K21W05U KC2021 11 30.48790 07 00 10.98 +24 31 25.0                oEX027691
     K21W05U KC2021 11 30.50770607 00 14.66 +24 31 32.5          22.23GVEX027V06
     K21W05U KC2021 11 30.50993907 00 15.07 +24 31 33.2          21.93GVEX027V06
     K21W05U KC2021 11 30.51217307 00 15.50 +24 31 34.4          21.46GVEX027V06
     K21W05U mC2021 11 30.52114607 00 17.22 +24 31 38.0          21.47GVEX027V00
     K21W05U mC2021 11 30.52202607 00 17.37 +24 31 38.2          21.44GVEX027V00
     K21W05U mC2021 11 30.52291207 00 17.54 +24 31 38.7          21.66GVEX027V00
     K21W05U mC2021 11 30.52380007 00 17.71 +24 31 39.1          21.91GVEX027V00
     K21W05U KC2021 12 01.27916607 02 49.22 +24 37 00.7                VEX027I52
     K21W05U KC2021 12 01.28091107 02 49.57 +24 36 59.9                VEX027I52
     K21W05U KC2021 12 01.28265607 02 50.00 +24 37 02.1                VEX027I52
     K21W05U KC2021 12 01.51503 07 03 34.06 +24 38 41.9          20.8 RoEX027691
     K21W05U KC2021 12 01.52544 07 03 36.04 +24 38 45.9                oEX027691
     K21W05U KC2021 12 01.53584 07 03 38.10 +24 38 50.2          20.4 RoEX027691

Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch.  Observers T. H. Bressi, J. V.
    Scotti.  0.9-m f/3 reflector + CCD.
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers E. J. Christensen,
    B. Gray, D. Rankin, F. C. Shelly.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. Rankin.  Measurers
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.
V00 Kitt Peak-Bok.  Observer R. A. Mastaler.  Measurers M. J. Brucker, E. J.
    Christensen, C. E. Woodward, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
    Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. S.
    McMillan, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  2.25-m
    reflector + CCD.
V06 Catalina Sky Survey-Kuiper.  Observer D. Rankin.  Measurers E. J.
    Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
    Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector + 1K CCD.

Orbital elements:
2021 WU5                                                 Earth MOID = 0.1855 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M   1.58606              (2000.0)            P               Q                  
n   0.19489916     Peri.   49.12031     -0.46124785     -0.88578681             
a   2.9462035      Node    68.41653     +0.79656184     -0.43886906             
e   0.6049673      Incl.    3.16279     +0.39081922     -0.15091612             
P   5.06           H   22.29          G   0.15           U   9                  
Residuals in seconds of arc
211128 G96  0.0   0.1-    211130 691  0.1-  0.1-    211130 V00  0.1-  0.0
211128 G96  0.1+  0.2-    211130 691  0.3+  0.3-    211201 I52  0.4-  0.6+
211128 G96  0.1-  0.2+    211130 V06  0.1-  0.1-    211201 I52 (0.1-  1.0-)
211130 V00  0.0   0.0     211130 V06  0.2-  0.3-    211201 I52 (1.2+  0.4+)
211130 V00  0.0   0.1+    211130 V06  0.1-  0.1+    211201 691  0.0   0.2-
211130 V00  0.1+  0.0     211130 V00  0.1+  0.1-    211201 691  0.2-  0.3-
211130 V00  0.0   0.0     211130 V00  0.1-  0.3-    211201 691  0.6+  0.0
211130 691  0.3+  0.1+    211130 V00  0.1-  0.1-

Ephemeris:
2021 WU5                 a,e,i = 2.95, 0.60, 3                   q = 1.1638
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 01    05 41 20.1 +21 37 31   0.5841  1.4541   132.8    30.1    23.2
...
2021 11 16    06 17 42.2 +22 56 49   0.4452  1.3585   139.5    28.2    22.4
...
2021 11 24    06 40 01.1 +23 46 55   0.3839  1.3128   142.5    27.3    22.0
...
2021 11 30    06 58 36.1 +24 28 02   0.3439  1.2815   144.3    26.7    21.7
2021 12 01    07 01 52.5 +24 35 07   0.3377  1.2765   144.6    26.6    21.7
2021 12 02    07 05 12.1 +24 42 14   0.3317  1.2717   144.9    26.5    21.6
...
2021 12 08    07 26 20.7 +25 25 18   0.2986  1.2444   146.2    26.1    21.3
...
2021 12 16    07 57 54.8 +26 18 58   0.2628  1.2135   147.2    26.1    21.0
...
2021 12 31    09 05 22.3 +27 09 21   0.2208  1.1747   147.0    27.1    20.6

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X27




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