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442175 (2010 WR74)
Classification: Main-belt Asteroid          SPK-ID: 2442175
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1057617552252675 9.2696e-08  
a 3.069295841781733 5.0569e-08 au
q 2.744681726249282 3.1514e-07 au
i 11.48045908784654 6.6807e-06 deg
node 120.4983651679643 2.7003e-05 deg
peri 236.2324074851315 4.0069e-05 deg
M 319.3704045715778 2.6584e-05 deg
tp 2459222.164706650377
(2021-Jan-07.66470665)
0.00014377 TDB
period 1964.068151619161
5.38
4.854e-05
1.329e-07
d
yr
n .1832930286574929 4.5299e-09 deg/d
Q 3.393909957314184 5.5918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6379 days (17.46 yr)  
   first obs. used      2003-05-02  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60222  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:48:33  

Additional Information
 Earth MOID = 1.75833 au 
 Jupiter MOID = 2.0409 au 
 T_jup = 3.192 
[ 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 15.7   n/a MPO437719  

442175 (2010 WR74)          Discovered 2003-May-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2010 WR74 = 2012 BJ138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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