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117654 (2005 EA172)
Classification: Main-belt Asteroid          SPK-ID: 2117654
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 .1242740899729275 3.8429e-08  
a 2.342243127565359 1.1097e-08 au
q 2.05116299439183 8.5483e-08 au
i 1.871201896320635 3.6658e-06 deg
node 244.8891490312645 0.00017629 deg
peri 351.0441413739254 0.00017789 deg
M 44.14103753315327 2.41e-05 deg
tp 2458839.958830214538
(2019-Dec-22.45883021)
8.752e-05 TDB
period 1309.321763888262
3.58
9.3049e-06
2.548e-08
d
yr
n .2749515130115277 1.954e-09 deg/d
Q 2.633323260738888 1.2476e-08 au
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      8217 days (22.50 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:17:09  

Additional Information
 Earth MOID = 1.03949 au 
 Jupiter MOID = 2.36343 au 
 T_jup = 3.552 
[ 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 16.7   n/a MPO469217  

117654 (2005 EA172)          Discovered 2005-Mar-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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