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344978 (2004 XX118)
Classification: Main-belt Asteroid          SPK-ID: 2344978
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1983516092410399 1.0592e-07  
a 2.571988913326301 3.0532e-08 au
q 2.061830773417916 2.8819e-07 au
i 5.260804041960542 9.0737e-06 deg
node 281.8892083898288 0.00010091 deg
peri 186.92217388529 0.00010537 deg
M 260.2362860639359 3.8935e-05 deg
tp 2459418.015086404423
(2021-Jul-22.51508640)
0.00016897 TDB
period 1506.614230519915
4.12
2.6827e-05
7.345e-08
d
yr
n .2389463690886341 4.2548e-09 deg/d
Q 3.082147053234686 3.6588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      7693 days (21.06 yr)  
   first obs. used      1997-03-04  
   last obs. used      2018-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68121  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-05 16:33:56  

Additional Information
 Earth MOID = 1.0787 au 
 Jupiter MOID = 2.05496 au 
 T_jup = 3.395 
[ 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 17.4   n/a MPO440553  

344978 (2004 XX118)          Discovered 2004-Dec-12 by Spacewatch at Kitt Peak
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2004 XX118 = 1997 EN20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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