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16833 (1997 WX21)
Classification: Main-belt Asteroid          SPK-ID: 2016833
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302851208879077 3.7919e-08  
a 2.70154961524925 1.1581e-08 au
q 2.349577897041821 1.0338e-07 au
i 12.81089948302103 4.503e-06 deg
node 353.8954161364746 1.6713e-05 deg
peri 240.7318569696403 2.3757e-05 deg
M 291.5119556261789 1.8183e-05 deg
tp 2459509.053241671838
(2021-Oct-21.55324167)		 8.2177e-05 TDB
period 1621.876752613489
4.44		 1.0429e-05
2.855e-08		 d
yr
n .2219650780615091 1.4273e-09 deg/d
Q 3.053521333456679 1.309e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2097  
   data-arc span      11342 days (31.05 yr)  
   first obs. used      1990-02-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47865  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:43:39  

Additional Information
 Earth MOID = 1.36928 au 
 Jupiter MOID = 2.03242 au 
 T_jup = 3.319 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.11   n/a E2021B10  

16833 (1997 WX21)          Discovered 1997-Nov-19 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WX21 = 1990 DO3 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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