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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .151166219206109 4.9545e-08  
a 2.905764543703329 2.1614e-08 au
q 2.466511103728533 1.4644e-07 au
i 12.62667759190432 8.2539e-06 deg
node 349.1175741564247 2.3346e-05 deg
peri 70.84184514255604 4.2053e-05 deg
M 347.259205558041 3.083e-05 deg
tp 2457464.529935640537
(2016-Mar-17.02993564)
0.00015508 JED
period 1809.210323233914
4.95
2.0186e-05
5.527e-08
d
yr
n .1989818405173092 2.2201e-09 deg/d
Q 3.345017983678126 2.4881e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      9247 days (25.32 yr)  
   first obs. used      1990-08-22  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46044  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:44:04  

Additional Information
 Earth MOID = 1.51083 au 
 Jupiter MOID = 2.14509 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 13.3 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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