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344965 (2004 XH20)
Classification: Main-belt Asteroid          SPK-ID: 2344965
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09139830640654999 7.2629e-08  
a 2.56159858296231 2.3729e-08 au
q 2.327472810786137 1.9707e-07 au
i 14.25928990074347 6.8441e-06 deg
node 80.94340037444559 2.4714e-05 deg
peri 280.0034053104479 5.7896e-05 deg
M 347.8200710894628 4.7403e-05 deg
tp 2459051.164911817388
(2020-Jul-20.66491182)
0.00019686 TDB
period 1497.493818578875
4.10
2.0807e-05
5.697e-08
d
yr
n .2404016601161271 3.3403e-09 deg/d
Q 2.795724355138483 2.5897e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      5817 days (15.93 yr)  
   first obs. used      2004-12-08  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52727  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:21:58  

Additional Information
 Earth MOID = 1.37648 au 
 Jupiter MOID = 2.59827 au 
 T_jup = 3.386 
[ 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 16.3   n/a MPO437461  

344965 (2004 XH20)          Discovered 2004-Dec-08 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2004 XH20 = 2008 VC77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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