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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456788.5 (2014-May-11.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191267325392698 4.2078e-08  
q 2.068074612983778 1.0245e-07 au
tp 2456509.003707672921
(2013-Aug-04.50370767)
7.6269e-05 TDB
node 95.1963659169317 2.7802e-05 deg
peri 295.4023780586836 3.4811e-05 deg
i 9.812856156902049 4.5885e-06 deg
  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
 Jupiter MOID = 2.78483 au 
 T_jup = 3.531 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.770560675434462E-15 -4.289321906662091E-15 -3.486717701769258E-13 1.234915817467527E-14 -1.306575823050165E-13 2.087560861146852E-15
q -4.289321906662091E-15 1.049643126994891E-14 9.586072641054795E-13 -3.028182372833125E-14 3.507112445166335E-13 -4.595528769015126E-15
tp -3.486717701769258E-13 9.586072641054795E-13 5.816901831834465E-9 -3.381575922850275E-11 1.618671724098603E-9 1.733676536320364E-12
node 1.234915817467527E-14 -3.028182372833125E-14 -3.381575922850275E-11 7.72927333632102E-10 -7.705861177320787E-10 7.818676331237489E-12
peri -1.306575823050165E-13 3.507112445166335E-13 1.618671724098603E-9 -7.705861177320787E-10 1.211837066175421E-9 -7.204380168299949E-12
i 2.087560861146852E-15 -4.595528769015126E-15 1.733676536320364E-12 7.818676331237489E-12 -7.204380168299949E-12 2.1054518173863E-11

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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