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249784 (2000 WD146)
Classification: Main-belt Asteroid          SPK-ID: 2249784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559106477011006 6.6138e-08  
a 3.096034176636103 2.8888e-08 au
q 2.303726065188414 2.0762e-07 au
i 17.9409777025614 8.1115e-06 deg
node 184.0899363099844 1.6176e-05 deg
peri 155.8991046166262 2.0451e-05 deg
M 256.023393481841 1.2171e-05 deg
tp 2459575.198660110414
(2021-Dec-26.69866011)
7.165e-05 TDB
period 1989.789093603633
5.45
2.7849e-05
7.625e-08
d
yr
n .1809236974698747 2.5322e-09 deg/d
Q 3.888342288083793 3.6281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      7095 days (19.43 yr)  
   first obs. used      2000-11-19  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57718  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:47:17  

Additional Information
 Earth MOID = 1.30775 au 
 Jupiter MOID = 1.63439 au 
 T_jup = 3.099 
[ 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 15.3   n/a MPO470665  

249784 (2000 WD146)          Discovered 2000-Nov-23 by NEAT at Haleakala
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 2000 WD146 = 2005 PA6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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