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JPL Small-Body Database Browser
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469249 (2016 JH21)
Classification: Main-belt Asteroid          SPK-ID: 2469249
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02874906170277209 6.2223e-08  
a 2.557843502737999 4.8641e-08 au
q 2.484307902051749 1.5934e-07 au
i 14.49891696564803 6.6842e-06 deg
node 49.35052099099189 2.3133e-05 deg
peri 189.4952920528182 0.00010361 deg
M 247.5970018326138 0.00010202 deg
tp 2459067.035585563142
(2020-Aug-05.53558556)
0.00042673 TDB
period 1494.202232511826
4.09
4.2621e-05
1.167e-07
d
yr
n .2409312422153343 6.8725e-09 deg/d
Q 2.631379103424249 5.0039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      3383 days (9.26 yr)  
   first obs. used      2009-10-24  
   last obs. used      2019-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56249  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-15 06:59:25  

Additional Information
 Earth MOID = 1.4737 au 
 Jupiter MOID = 2.35248 au 
 T_jup = 3.391 
[ 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 MPO380678  

469249 (2016 JH21)          Discovered 2012-Mar-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-06-21

Alternate Designations
 2016 JH21 = 2014 WK492 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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