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JPL Small-Body Database Browser
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49960 (1999 XN225)
Classification: Main-belt Asteroid          SPK-ID: 2049960
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07681726579402451 3.6139e-08  
a 2.379187588336504 9.2762e-09 au
q 2.196424902989415 8.6223e-08 au
i 5.262353139966806 3.4987e-06 deg
node 96.67642160714749 4.9927e-05 deg
peri 354.5228394372617 6.324e-05 deg
M 110.4446768045318 3.7658e-05 deg
tp 2458189.270991041570
(2018-Mar-11.77099104)
0.00013959 TDB
period 1340.421716177816
3.67
7.8392e-06
2.146e-08
d
yr
n .2685721931054149 1.5707e-09 deg/d
Q 2.561950273683593 9.9887e-09 au
  Orbit Determination Parameters
   # obs. used (total)      885  
   data-arc span      9574 days (26.21 yr)  
   first obs. used      1993-02-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59376  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:47  

Additional Information
 Earth MOID = 1.21314 au 
 Jupiter MOID = 2.55936 au 
 T_jup = 3.530 
[ 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 15.7   n/a MPO233775  

49960 (1999 XN225)          Discovered 1999-Dec-13 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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