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259687 (2003 XA20)
Classification: Main-belt Asteroid          SPK-ID: 2259687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2543050765075009 4.6292e-08  
a 2.615519918793603 1.9482e-08 au
q 1.950379925737904 1.2515e-07 au
i 5.050715580071659 5.4945e-06 deg
node 353.4217342807647 3.9287e-05 deg
peri 210.2082870047698 4.0203e-05 deg
M 242.5502528603023 1.0914e-05 deg
tp 2459504.563278607866
(2021-Oct-17.06327861)
5.0642e-05 TDB
period 1545.02486993859
4.23
1.7262e-05
4.726e-08
d
yr
n .2330059580298593 2.6033e-09 deg/d
Q 3.280659911849303 2.4436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      9001 days (24.64 yr)  
   first obs. used      1996-03-20  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57017  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:50:40  

Additional Information
 Earth MOID = .949216 au 
 Jupiter MOID = 1.69645 au 
 T_jup = 3.355 
[ 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 16.2   n/a MPO437206  

259687 (2003 XA20)          Discovered 2003-Dec-14 by Spacewatch at Kitt Peak
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

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