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JPL Small-Body Database Browser
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85988 (1999 JX5)
Classification: Main-belt Asteroid          SPK-ID: 2085988
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471257477461357 5.7882e-08  
a 2.785815855931448 2.2635e-08 au
q 2.375950615044493 1.629e-07 au
i 27.75799527920532 6.8692e-06 deg
node 204.6988555495586 9.6427e-06 deg
peri 335.3973042114908 1.9891e-05 deg
M 144.106962743815 2.0555e-05 deg
tp 2457920.655638591510
(2017-Jun-16.15563859)
9.3991e-05 TDB
period 1698.349374985775
4.65
2.0699e-05
5.667e-08
d
yr
n .2119705199073161 2.5834e-09 deg/d
Q 3.195681096818404 2.5965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7477 days (20.47 yr)  
   first obs. used      1999-05-12  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54914  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:16:26  

Additional Information
 Earth MOID = 1.39096 au 
 Jupiter MOID = 1.81039 au 
 T_jup = 3.149 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO449533  
rotation period rot_per 14.575 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

85988 (1999 JX5)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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