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103138 (1999 XP204)
Classification: Main-belt Asteroid          SPK-ID: 2103138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438089421545419 3.6752e-08  
a 2.320016349203172 8.5525e-09 au
q 1.986377252243021 8.7166e-08 au
i 8.220905838245015 5.091e-06 deg
node 17.1385595551906 2.9235e-05 deg
peri 104.7323807390893 3.6188e-05 deg
M 321.7489513175149 1.8833e-05 deg
tp 2459337.643693127361
(2021-May-03.14369313)
6.7565e-05 TDB
period 1290.728783298871
3.53
7.1372e-06
1.954e-08
d
yr
n .2789121964723717 1.5423e-09 deg/d
Q 2.653655446163322 9.7825e-09 au
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      7708 days (21.10 yr)  
   first obs. used      1999-12-12  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5601  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:26  

Additional Information
 Earth MOID = 1.02013 au 
 Jupiter MOID = 2.43146 au 
 T_jup = 3.551 
[ 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 15.9   n/a MPO449622  

103138 (1999 XP204)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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