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249776 (2000 WD44)
Classification: Main-belt Asteroid          SPK-ID: 2249776
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04553365409719735 5.2807e-08  
a 3.031197133051139 3.2029e-08 au
q 2.893175651294372 1.7325e-07 au
i 8.737334144013834 5.5305e-06 deg
node 219.1759190239762 3.274e-05 deg
peri 117.246544656113 6.6244e-05 deg
M 324.3313823588903 5.8658e-05 deg
tp 2459191.486854767092
(2020-Dec-07.98685477)
0.00031476 TDB
period 1927.612345618614
5.28
3.0552e-05
8.365e-08
d
yr
n .1867595426114932 2.9601e-09 deg/d
Q 3.169218614807906 3.3487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      7150 days (19.58 yr)  
   first obs. used      2000-11-01  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:41:02  

Additional Information
 Earth MOID = 1.89814 au 
 Jupiter MOID = 2.01375 au 
 T_jup = 3.224 
[ 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 15.4   n/a MPO437160  

249776 (2000 WD44)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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