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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 ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021123255552976 5.8713e-08  
a 2.429178110988377 1.2985e-08 au
q 1.938211273788491 1.4044e-07 au
i .7561915728665042 6.3096e-06 deg
node 189.6304621601801 0.00033315 deg
peri 188.3279790001786 0.00033333 deg
M 27.2406687371952 1.4539e-05 deg
tp 2459291.858795586580
(2021-Mar-18.35879559)
5.5283e-05 TDB
period 1382.889456652527
3.79
1.1088e-05
3.036e-08
d
yr
n .2603244954021338 2.0873e-09 deg/d
Q 2.920144948188263 1.5609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      604  
   data-arc span      11038 days (30.22 yr)  
   first obs. used      1990-08-20  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54326  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:15:12  

Additional Information
 Earth MOID = .939323 au 
 Jupiter MOID = 2.54423 au 
 T_jup = 3.480 
[ 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 15.83   n/a MPCxxxxx  

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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