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344959 (2004 XH)
Classification: Outer Main-belt Asteroid          SPK-ID: 2344959
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2365753829089675 1.0688e-07  
a 3.989483804121348 8.7687e-08 au
q 3.045670145552216 4.7981e-07 au
i 6.489232551150052 6.673e-06 deg
node 72.88670444772067 8.3831e-05 deg
peri 333.202353410079 8.6222e-05 deg
M 351.2439168355343 2.3787e-05 deg
tp 2459071.291459040472
(2020-Aug-09.79145904)
0.00019411 TDB
period 2910.539424521895
7.97
9.5958e-05
2.627e-07
d
yr
n .1236884121777997 4.0779e-09 deg/d
Q 4.93329746269048 1.0843e-07 au
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      5893 days (16.13 yr)  
   first obs. used      2003-08-26  
   last obs. used      2019-10-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63543  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 10:25:54  

Additional Information
 Earth MOID = 2.05739 au 
 Jupiter MOID = .484785 au 
 T_jup = 2.995 
[ 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 14.6   n/a MPO494804  

344959 (2004 XH)          Discovered 2004-Dec-02 by LONEOS at Anderson Mesa
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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