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249425 (2009 ER3)
Classification: Main-belt Asteroid          SPK-ID: 2249425
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08150238504963481 6.1427e-08  
a 2.162758151462663 1.5555e-08 au
q 1.986488203832916 1.3953e-07 au
i 4.192087475338843 5.8543e-06 deg
node 310.7515294304045 7.8811e-05 deg
peri 158.0981974328924 8.638e-05 deg
M 239.5536180857023 3.6342e-05 deg
tp 2459389.188437092373
(2021-Jun-23.68843709)
0.00011921 TDB
period 1161.743799434494
3.18
1.2533e-05
3.431e-08
d
yr
n .3098789941252439 3.343e-09 deg/d
Q 2.339028099092409 1.6822e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      6515 days (17.84 yr)  
   first obs. used      2001-09-26  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60416  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:45  

Additional Information
 Earth MOID = 1.00385 au 
 Jupiter MOID = 2.72876 au 
 T_jup = 3.688 
[ 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 17.5   n/a MPO352522  

249425 (2009 ER3)          Discovered 2009-Mar-14 by La Sagra at La Sagra
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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