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249985 (2001 WR23)
Classification: Main-belt Asteroid          SPK-ID: 2249985
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04098291828294249 4.5039e-08  
a 2.815246550780679 2.4299e-08 au
q 2.699869531443698 1.2418e-07 au
i 2.604884252673882 4.6323e-06 deg
node 244.8815134384516 0.00013531 deg
peri 345.3748753430104 0.00015503 deg
M 159.0831532525306 7.6334e-05 deg
tp 2458238.079141364109
(2018-Apr-29.57914136)
0.0003658 TDB
period 1725.333597538271
4.72
2.2338e-05
6.116e-08
d
yr
n .2086553003509888 2.7015e-09 deg/d
Q 2.930623570117659 2.5295e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      6529 days (17.88 yr)  
   first obs. used      2001-11-17  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50474  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:49:44  

Additional Information
 Earth MOID = 1.68903 au 
 Jupiter MOID = 2.04975 au 
 T_jup = 3.317 
[ 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 16.5   n/a MPO418334  

249985 (2001 WR23)          Discovered 2001-Nov-17 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

Alternate Designations
 2001 WR23 = 2008 ER69 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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