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49378 (1998 XU2)
Classification: Main-belt Asteroid          SPK-ID: 2049378
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1772702555251195 6.7788e-08  
a 2.672289965524424 1.5548e-08 au
q 2.198572440498696 1.8155e-07 au
i 12.08775640035798 7.7092e-06 deg
node 341.51161663 2.4435e-05 deg
peri 39.56235743387837 3.0824e-05 deg
M 59.26590539787677 1.5735e-05 deg
tp 2457337.820475839437
(2015-Nov-11.32047584)
6.9656e-05 JED
period 1595.599157103076
4.37
1.3925e-05
3.812e-08
d
yr
n .2256205754417706 1.969e-09 deg/d
Q 3.146007490550151 1.8304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      8164 days (22.35 yr)  
   first obs. used      1993-09-10  
   last obs. used      2016-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53813  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 23:03:53  

Additional Information
 Earth MOID = 1.21222 au 
 Jupiter MOID = 2.37304 au 
 T_jup = 3.326 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO359071  

49378 (1998 XU2)          Discovered 1998-Dec-07 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XU2 = 2000 EP91 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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