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JPL Small-Body Database Browser
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390191 (2012 WT22)
Classification: Main-belt Asteroid          SPK-ID: 2390191
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 .05507084479652542 6.7758e-08  
a 2.679390650321713 3.0744e-08 au
q 2.531834343668584 1.8606e-07 au
i 6.298670654905297 7.0883e-06 deg
node 48.75491410679809 5.7514e-05 deg
peri 348.9979538205344 7.9131e-05 deg
M 192.1257338071644 5.6368e-05 deg
tp 2459347.523234467142
(2021-May-13.02323447)
0.00025517 TDB
period 1601.963007833826
4.39
2.7572e-05
7.549e-08
d
yr
n .2247242902860734 3.8678e-09 deg/d
Q 2.826946956974841 3.2437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6650 days (18.21 yr)  
   first obs. used      2001-03-18  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55989  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:06:45  

Additional Information
 Earth MOID = 1.53891 au 
 Jupiter MOID = 2.41089 au 
 T_jup = 3.366 
[ 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 16.5   n/a MPO434436  

390191 (2012 WT22)          Discovered 2003-Oct-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

[ show close-approach data ]
Alternate Designations
 2012 WT22 = 2010 NP104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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