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102948 (1999 XU54)
Classification: Main-belt Asteroid          SPK-ID: 2102948
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1762960600563643 4.1487e-08  
a 2.181094854939492 6.7367e-09 au
q 1.796576425404452 9.0729e-08 au
i 1.507409062200605 4.3621e-06 deg
node 211.127072083797 0.00013424 deg
peri 137.6167197648317 0.0001347 deg
M 250.6620650492449 1.0151e-05 deg
tp 2459557.837523472840
(2021-Dec-09.33752347)
3.3573e-05 TDB
period 1176.549644075146
3.22
5.451e-06
1.492e-08
d
yr
n .3059794389577045 1.4176e-09 deg/d
Q 2.565613284474532 7.9244e-09 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      9593 days (26.26 yr)  
   first obs. used      1994-01-11  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52337  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 18:12:40  

Additional Information
 Earth MOID = .788727 au 
 Jupiter MOID = 2.85227 au 
 T_jup = 3.660 
[ 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 16.69   n/a E2021B55  

102948 (1999 XU54)          Discovered 1999-Dec-07 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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