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JPL Small-Body Database Browser
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85829 (1998 XW56)
Classification: Main-belt Asteroid          SPK-ID: 2085829
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026588494645795 6.3326e-08  
a 2.430449156711822 1.42e-08 au
q 1.937897126930447 1.5039e-07 au
i .7558278833729339 6.4323e-06 deg
node 189.6793874288167 0.00034847 deg
peri 188.2263512473498 0.00034865 deg
M 284.2633436183817 1.4681e-05 deg
tp 2459291.660103208259
(2021-Mar-18.16010321)
5.8194e-05 TDB
period 1383.974975430957
3.79
1.2129e-05
3.321e-08
d
yr
n .2601203102591499 2.2797e-09 deg/d
Q 2.923001186493197 1.7078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      10491 days (28.72 yr)  
   first obs. used      1990-08-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55816  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:56:05  

Additional Information
 Earth MOID = .939771 au 
 Jupiter MOID = 2.53934 au 
 T_jup = 3.479 
[ 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 15.8   n/a MPO267963  

85829 (1998 XW56)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 XW56 = 1990 QG6 = 2002 YR28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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