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JPL Small-Body Database Browser
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146440 (2001 QH284)
Classification: Main-belt Asteroid          SPK-ID: 2146440
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08615708092598352 5.6714e-08  
a 2.655385178133991 1.8364e-08 au
q 2.426604942451844 1.5524e-07 au
i 1.842582034029666 6.4108e-06 deg
node 182.8280910280228 0.00012607 deg
peri 145.476885345434 0.00012936 deg
M 44.23569260473914 2.7575e-05 deg
tp 2458406.295160677661
(2018-Oct-14.79516068)
0.00012089 TDB
period 1580.482593111971
4.33
1.6395e-05
4.489e-08
d
yr
n .2277785288929755 2.3629e-09 deg/d
Q 2.884165413816139 1.9946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      6672 days (18.27 yr)  
   first obs. used      2001-08-18  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56222  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 12:59:05  

Additional Information
 Earth MOID = 1.41458 au 
 Jupiter MOID = 2.37382 au 
 T_jup = 3.382 
[ 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 16.3   n/a MPO453929  

146440 (2001 QH284)          Discovered 2001-Aug-18 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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