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JPL Small-Body Database Browser
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393496 (2002 QU81)
Classification: Main-belt Asteroid          SPK-ID: 2393496
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1753683324034801 4.3248e-08  
a 2.604864444258074 2.0426e-08 au
q 2.148053710531417 1.0998e-07 au
i 7.042738830668233 4.7295e-06 deg
node 122.6913276825181 8.9013e-05 deg
peri 172.7400054579849 9.6e-05 deg
M 111.6870250462436 3.8136e-05 deg
tp 2458524.094967215482
(2019-Feb-09.59496722)
0.00016098 TDB
period 1535.592981650422
4.20
1.8062e-05
4.945e-08
d
yr
n .2344371225330034 2.7575e-09 deg/d
Q 3.06167517798473 2.4008e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      6282 days (17.20 yr)  
   first obs. used      2002-08-19  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62088  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:07:39  

Additional Information
 Earth MOID = 1.13232 au 
 Jupiter MOID = 2.14819 au 
 T_jup = 3.380 
[ 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 17.3   n/a MPO450380  

393496 (2002 QU81)          Discovered 2002-Aug-19 by NEAT at Palomar
Reference: Last Updated: 2014-05-15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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