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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1514215023270513 5.1484e-08  
a 2.906507300238061 3.2414e-08 AU
q 2.466399598311472 1.4798e-07 AU
i 12.62586167675499 9.0231e-06 deg
node 349.1185363272706 2.6768e-05 deg
peri 70.80198749083854 4.7118e-05 deg
M 267.7402466924083 3.8052e-05 deg
tp 2457464.336950000198
(2016-Mar-16.83695000)
0.00019553 JED
period 1809.904059068528
4.96
3.0276e-05
8.289e-08
d
yr
n .1989055708208506 3.3273e-09 deg/d
Q 3.346615002164651 3.7322e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      8719 days (23.87 yr)  
   first obs. used      1990-08-22  
   last obs. used      2014-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47005  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:43:59  

Additional Information
 Earth MOID = 1.51136 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 (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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