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249786 (2000 WD169)
Classification: Main-belt Asteroid          SPK-ID: 2249786
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .249648782741116 4.6108e-08  
a 3.130717520553615 2.4761e-08 au
q 2.34913770244112 1.4252e-07 au
i 10.52529116600605 5.2591e-06 deg
node 132.2476972101458 2.8631e-05 deg
peri 319.4404759537711 3.0837e-05 deg
M 208.0406233306374 1.3874e-05 deg
tp 2459854.561716783510
(2022-Oct-02.06171678)
8.4435e-05 TDB
period 2023.318499858342
5.54
2.4004e-05
6.572e-08
d
yr
n .1779255218717195 2.1109e-09 deg/d
Q 3.91229733866611 3.0943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      7154 days (19.59 yr)  
   first obs. used      2000-11-25  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53602  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:15:17  

Additional Information
 Earth MOID = 1.37704 au 
 Jupiter MOID = 1.35391 au 
 T_jup = 3.139 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457597.5 (2016-Jul-28.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2532098101677752 4.7139e-08  
q 2.327722198874734 1.4778e-07 au
tp 2457824.031241532223
(2017-Mar-11.53124153)
6.6665e-05 TDB
node 132.9860509352805 2.9187e-05 deg
peri 317.1206870821169 3.1006e-05 deg
i 10.4260131296963 5.2252e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      7154 days (19.59 yr)  
   first obs. used      2000-11-25  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53602  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:15:17  

Additional Information
 Jupiter MOID = 1.35391 au 
 T_jup = 3.139 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.222042921013992E-15 -6.917610274661707E-15 -7.451699391126362E-14 9.489480339151409E-15 -5.683482092592164E-14 -1.730743458527762E-15
q -6.917610274661707E-15 2.184030672835247E-14 9.847462564948084E-13 -3.035325425660204E-14 2.850215486140276E-13 5.639775716008391E-15
tp -7.451699391126362E-14 9.847462564948084E-13 4.444286334620568E-9 1.20331165452399E-11 7.353102078369183E-10 3.748235610800725E-13
node 9.489480339151409E-15 -3.035325425660204E-14 1.20331165452399E-11 8.518944422479745E-10 -8.355166215299161E-10 -2.413910530403323E-11
peri -5.683482092592164E-14 2.850215486140276E-13 7.353102078369183E-10 -8.355166215299161E-10 9.613632653798877E-10 2.380804091786615E-11
i -1.730743458527762E-15 5.639775716008391E-15 3.748235610800725E-13 -2.413910530403323E-11 2.380804091786615E-11 2.730260446719763E-11

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 15.0   n/a MPO437160  

249786 (2000 WD169)          Discovered 2000-Nov-25 by LONEOS at Anderson Mesa
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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