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49883 (1999 XW140)
Classification: Main-belt Asteroid          SPK-ID: 2049883
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 .04487608213555326 5.6081e-08  
a 2.539732133786835 1.4882e-08 au
q 2.425758905948713 1.4166e-07 au
i 3.077641158016657 4.0379e-06 deg
node 270.4322123207455 0.00011404 deg
peri 299.5959052534889 0.00012554 deg
M 279.5734428466122 5.2949e-05 deg
tp 2459330.776196858683
(2021-Apr-26.27619686)
0.00021732 TDB
period 1478.360321235227
4.05
1.2994e-05
3.558e-08
d
yr
n .2435130291505701 2.1404e-09 deg/d
Q 2.653705361624957 1.555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      7894 days (21.61 yr)  
   first obs. used      1998-10-01  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5954  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:30:22  

Additional Information
 Earth MOID = 1.42119 au 
 Jupiter MOID = 2.31983 au 
 T_jup = 3.443 
[ 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 15.6   n/a MPO452848  

49883 (1999 XW140)          Discovered 1999-Dec-02 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XW140 = 2000 CV145 = 2001 KJ74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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