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22166 (2000 WX154)
Classification: Main-belt Asteroid          SPK-ID: 2022166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1990080899010427 4.239e-08  
a 2.443690182842238 1.1096e-08 au
q 1.957376067244875 9.9835e-08 au
i 11.07967693235536 3.3387e-06 deg
node 268.7121344544618 2.1335e-05 deg
peri 57.586330306835 2.3478e-05 deg
M 161.5761639222331 1.1978e-05 deg
tp 2458574.257647604415
(2019-Mar-31.75764760)
4.4313e-05 TDB
period 1395.300156840701
3.82
9.5033e-06
2.602e-08
d
yr
n .2580090013141886 1.7573e-09 deg/d
Q 2.930004298439602 1.3304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1577  
   data-arc span      11402 days (31.22 yr)  
   first obs. used      1989-12-26  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45549  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:48  

Additional Information
 Earth MOID = .967787 au 
 Jupiter MOID = 2.43991 au 
 T_jup = 3.447 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.52   n/a E2021B10  
diameter diameter 4.715 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 800. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.035   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

22166 (2000 WX154)          Discovered 2000-Nov-30 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WX154 = 1989 YY7 = 1999 LH33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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