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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1514215021922901 5.1364e-08  
a 2.90650730017515 3.2096e-08 AU
q 2.466399598649771 1.4785e-07 AU
i 12.62586172632805 9.0218e-06 deg
node 349.1185357240271 2.6702e-05 deg
peri 70.80198810886417 4.7013e-05 deg
M 267.7402466898957 3.788e-05 deg
tp 2457464.336949997770
(2016-Mar-16.83695000)
0.00019458 JED
period 1809.904059009764
4.96
2.998e-05
8.208e-08
d
yr
n .1989055708273086 3.2947e-09 deg/d
Q 3.346615001700528 3.6956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      9077 days (24.85 yr)  
   first obs. used      1990-08-22  
   last obs. used      2015-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47023  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:26:12  

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
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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