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85987 (1999 JT5)
Classification: Inner Main-belt Asteroid          SPK-ID: 2085987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06697338120252271 3.9705e-08  
a 1.910931752637547 6.5996e-09 au
q 1.782950191916148 7.6548e-08 au
i 23.51680347611641 5.5361e-06 deg
node 48.44484994016632 9.6271e-06 deg
peri 296.9417483790565 4.7053e-05 deg
M 228.1076445649108 5.0132e-05 deg
tp 2459353.995032862276
(2021-May-19.49503286)
0.00013532 TDB
period 964.8641986157361
2.64
4.9984e-06
1.368e-08
d
yr
n .3731095013334333 1.9329e-09 deg/d
Q 2.038913313358946 7.0416e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1755  
   data-arc span      13019 days (35.64 yr)  
   first obs. used      1984-11-21  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40021  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:05  

Additional Information
 Earth MOID = .83916 au 
 Jupiter MOID = 3.14851 au 
 T_jup = 3.832 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO453291  

85987 (1999 JT5)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 JT5 = 1984 WN5 = 2000 QF181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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