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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .151521862790793 6.617e-08  
a 2.906481707342301 3.4207e-08 AU
q 2.466086184878431 1.8733e-07 AU
i 12.62512325952152 1.1124e-05 deg
node 349.124084540557 2.8645e-05 deg
peri 70.78560510202666 5.9335e-05 deg
M 227.9823624515182 4.5569e-05 deg
tp 2457464.211394857814
(2016-Mar-16.71139486)
0.00023169 JED
period 1809.880153786775
4.96
3.1951e-05
8.748e-08
d
yr
n .1989081980079065 3.5115e-09 deg/d
Q 3.346877229806171 3.939e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      750  
   data-arc span      8349 days (22.86 yr)  
   first obs. used      1990-08-22  
   last obs. used      2013-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49908  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 19:25:35  

Additional Information
 Earth MOID = 1.51032 AU 
 T_jup = 3.232 
[ 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 13.2 mag n/a MPO266061  

19987 (1990 QJ3)          Discovered 1990-Aug-28 by Holt, H. E. at Palomar (675)
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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