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344969 (2004 XQ49)
Classification: Main-belt Asteroid          SPK-ID: 2344969
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05651158352934357 4.8546e-07  
a 2.543077814387475 3.1351e-08 au
q 2.399364460058097 1.2459e-06 au
i 5.271521952291781 1.065e-05 deg
node 72.82574414026053 8.5462e-05 deg
peri 339.5812973614799 0.00030277 deg
M 311.4915436447885 0.00027052 deg
tp 2459200.096469191451
(2020-Dec-16.59646919)
0.0011147 TDB
period 1481.282529024507
4.06
2.7392e-05
7.5e-08
d
yr
n .2430326375597481 4.4942e-09 deg/d
Q 2.686791168716853 3.3123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      7274 days (19.92 yr)  
   first obs. used      1998-04-19  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57848  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:29:38  

Additional Information
 Earth MOID = 1.41127 au 
 Jupiter MOID = 2.51051 au 
 T_jup = 3.436 
[ 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 17.2   n/a MPO434171  

344969 (2004 XQ49)          Discovered 2004-Dec-10 by Junk Bond at Junk Bond
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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