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19987 (1990 QJ3)
Classification: Main-belt Asteroid          SPK-ID: 2019987
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1510223008177529 4.9549e-08  
a 2.905296546191441 2.1098e-08 au
q 2.466531977227739 1.4631e-07 au
i 12.62662444810379 8.036e-06 deg
node 349.1165184500049 2.3244e-05 deg
peri 70.84801412707095 4.1706e-05 deg
M 27.05878604400861 3.0348e-05 deg
tp 2457464.546642781181
(2016-Mar-17.04664278)
0.00015224 JED
period 1808.773258311489
4.95
1.9703e-05
5.394e-08
d
yr
n .1990299217139379 2.168e-09 deg/d
Q 3.344061115155143 2.4284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      9323 days (25.52 yr)  
   first obs. used      1990-08-22  
   last obs. used      2016-03-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4645  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:36:57  

Additional Information
 Earth MOID = 1.51038 au 
 Jupiter MOID = 2.14441 au 
 T_jup = 3.233 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO299106  

19987 (1990 QJ3)          Discovered 1990-Aug-28 by Holt, H. E. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QJ3 = 1995 UE25 = 1998 FU112 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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