[Iaude] MPEC X10: 2021 WX4 [a=1.63,e=0.24,i=13.0,H=22.7]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 1 07:52:30 EST 2021


M.P.E.C. 2021-X10                              Issued 2021 December 1, 12:51 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 WX4                                    


Observations:
     K21W04X* C2021 11 28.33321505 01 00.03 +30 01 50.0          20.96GVEX010G96
     K21W04X  C2021 11 28.33838405 00 59.68 +30 02 05.7          20.75GVEX010G96
     K21W04X  C2021 11 28.34352605 00 59.33 +30 02 21.1          20.72GVEX010G96
     K21W04X mC2021 11 28.43530305 00 53.20 +30 06 56.7          20.63GVEX010I52
     K21W04X mC2021 11 28.44177305 00 52.72 +30 07 16.1          21.10GVEX010I52
     K21W04X KC2021 11 29.23424905 00 09.96 +30 47 22.2          20.7 VuEX010H21
     K21W04X KC2021 11 29.24263905 00 09.41 +30 47 47.6          20.3 VuEX010H21
     K21W04X KC2021 11 29.25103205 00 08.85 +30 48 13.2          20.6 VuEX010H21
     K21W04X bC2021 11 30.00858104 59 23.97 +31 26 31.5          21.1 GVEX010L01
     K21W04X bC2021 11 30.01013904 59 23.84 +31 26 36.0          20.7 GVEX010L01
     K21W04X bC2021 11 30.01248104 59 23.67 +31 26 43.9          20.9 GVEX010L01
     K21W04X bC2021 11 30.01443104 59 23.50 +31 26 49.3          20.8 GVEX010L01
     K21W04X bC2021 11 30.01677204 59 23.35 +31 26 56.4          20.5 GVEX010L01
     K21W04X 1C2021 11 30.04090 04 59 21.79 +31 28 05.4          21.0 VVEX010033
     K21W04X 1C2021 11 30.04200 04 59 21.73 +31 28 09.4          20.9 VVEX010033
     K21W04X 1C2021 11 30.04309 04 59 21.65 +31 28 12.6          21.0 VVEX010033
     K21W04X KC2021 12 01.01698504 58 22.40 +32 17 33.1          20.4 VZEX010C95
     K21W04X KC2021 12 01.06251204 58 19.14 +32 19 50.0                ZEX010C95

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
    Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
    f/3 Schmidt + CCD.
C95 SATINO Remote Observatory, Haute Provence.  Observer J. Jahn.  0.60-m
    f/3.2 Newtonian reflector + CCD.
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  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.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer K. W. Wierzchos.
    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.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.

Orbital elements:
2021 WX4                                                 Earth MOID = 0.2622 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  16.48122              (2000.0)            P               Q                  
n   0.47165076     Peri.   21.68773     +0.12377337     -0.97220721             
a   1.6345154      Node    61.68695     +0.87402201     +0.01198325             
e   0.2420810      Incl.   13.04604     +0.46985709     +0.23381521             
P   2.09           H   22.70          G   0.15           U   9                  
Residuals in seconds of arc
211128 G96  0.1-  0.0     211129 H21  0.2+  0.1-    211130 L01  0.4-  0.3+
211128 G96  0.0   0.1+    211129 H21  0.5+  0.0     211130 033  0.1-  0.5-
211128 G96  0.1-  0.1-    211130 L01  0.1+  0.1+    211130 033  0.1+  0.2+
211128 I52  0.5+  0.1-    211130 L01  0.1-  0.1-    211130 033  0.0   0.1+
211128 I52  0.2-  0.0     211130 L01  0.2-  0.8+    211201 C95  0.8-  0.2-
211129 H21  0.3-  0.1+    211130 L01  0.6-  0.3+    211201 C95  0.6+  0.3-

Ephemeris:
2021 WX4                 a,e,i = 1.63, 0.24, 13                  q = 1.2388
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 01    05 04 30.0 +11 14 03   0.3531  1.2861   140.9    29.1    22.3
...
2021 11 16    05 07 53.4 +20 12 05   0.2921  1.2608   155.6    18.9    21.5
...
2021 11 24    05 04 25.9 +26 24 58   0.2724  1.2511   163.7    12.8    21.1
...
2021 11 30    04 59 24.9 +31 26 11   0.2643  1.2456   167.3    10.0    20.9
2021 12 01    04 58 23.8 +32 16 46   0.2636  1.2448   167.5     9.9    20.9
2021 12 02    04 57 20.0 +33 07 13   0.2630  1.2441   167.5     9.9    20.9
...
2021 12 08    04 50 12.9 +38 01 41   0.2631  1.2407   164.6    12.2    21.0
...
2021 12 16    04 40 05.3 +43 50 08   0.2722  1.2388   156.7    18.3    21.3
...
2021 12 31    04 27 42.0 +51 22 21   0.3112  1.2433   142.0    29.2    21.9

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X10




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