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JPL Small-Body Database Browser
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390621 (2001 WP99)
Classification: Main-belt Asteroid          SPK-ID: 2390621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1648658558404973 9.1506e-08  
a 2.400060242015485 2.378e-08 au
q 2.00437225614685 2.2214e-07 au
i 2.809239172693843 1.3667e-05 deg
node 46.67354822324103 0.00014438 deg
peri 24.52418890684712 0.00014892 deg
M 235.1348121951123 3.6924e-05 deg
tp 2459071.553803583104
(2020-Aug-10.05380358)
0.00014308 TDB
period 1358.099661491717
3.72
2.0184e-05
5.526e-08
d
yr
n .2650762754808297 3.9395e-09 deg/d
Q 2.795748227884119 2.77e-08 au
  Orbit Determination Parameters
   # obs. used (total)      93  
   data-arc span      5989 days (16.40 yr)  
   first obs. used      2001-11-19  
   last obs. used      2018-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59491  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:51:40  

Additional Information
 Earth MOID = 1.01904 au 
 Jupiter MOID = 2.47899 au 
 T_jup = 3.506 
[ 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 17.6   n/a MPO494981  

390621 (2001 WP99)          Discovered 2001-Nov-19 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2001 WP99 = 2006 AY72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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