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249587 (1995 WA23)
Classification: Main-belt Asteroid          SPK-ID: 2249587
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09471227542880516 6.2484e-08  
a 2.430795109838114 2.1654e-08 au
q 2.200568973884133 1.6448e-07 au
i 5.446250356508456 5.0117e-06 deg
node 222.3663978427366 7.0087e-05 deg
peri 44.05889419040324 8.3493e-05 deg
M 290.1708097831275 5.1665e-05 deg
tp 2459269.006907581478
(2021-Feb-23.50690758)
0.00020049 TDB
period 1384.270480999736
3.79
1.8497e-05
5.064e-08
d
yr
n .2600647813713428 3.4751e-09 deg/d
Q 2.661021245792094 2.3705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      8926 days (24.44 yr)  
   first obs. used      1995-11-18  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54924  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:45:41  

Additional Information
 Earth MOID = 1.18875 au 
 Jupiter MOID = 2.39183 au 
 T_jup = 3.495 
[ 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 16.9   n/a MPO470663  

249587 (1995 WA23)          Discovered 1995-Nov-18 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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