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JPL Small-Body Database Browser
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80435 (1999 XQ238)
Classification: Main-belt Asteroid          SPK-ID: 2080435
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .1182112780673432 4.1962e-08  
a 2.346829514717965 1.2212e-08 au
q 2.069407798376992 1.0204e-07 au
i 9.81341904163162 4.5894e-06 deg
node 95.15438262775784 2.7799e-05 deg
peri 295.2792910995578 3.4965e-05 deg
M 323.0170938128438 2.2738e-05 deg
tp 2459135.402275132299
(2020-Oct-12.90227513)
8.3373e-05 TDB
period 1313.169354562339
3.60
1.025e-05
2.806e-08
d
yr
n .2741459041434781 2.1398e-09 deg/d
Q 2.624251231058939 1.3655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      755  
   data-arc span      7096 days (19.43 yr)  
   first obs. used      1999-12-04  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56492  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:49:40  

Additional Information
 Earth MOID = 1.09782 au 
 Jupiter MOID = 2.78483 au 
 T_jup = 3.531 
[ 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 15.4   n/a MPO436343  

80435 (1999 XQ238)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1999 XQ238 = 2001 LE15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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