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JPL Small-Body Database Browser
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305488 (2008 ER3)
Classification: Main-belt Asteroid          SPK-ID: 2305488
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2689850366339555 4.8524e-08  
a 3.098340339899889 3.4371e-08 au
q 2.264933150067455 1.574e-07 au
i 16.60811054572337 6.5527e-06 deg
node 135.5829706968744 2.0175e-05 deg
peri 312.6794492297633 2.5204e-05 deg
M 70.10235327531002 1.3375e-05 deg
tp 2458212.597833287426
(2018-Apr-04.09783329)
7.0962e-05 TDB
period 1992.012728418767
5.45
3.3147e-05
9.075e-08
d
yr
n .1807217367962117 3.0072e-09 deg/d
Q 3.931747529732323 4.3617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      6370 days (17.44 yr)  
   first obs. used      2001-12-19  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57609  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:47  

Additional Information
 Earth MOID = 1.31491 au 
 Jupiter MOID = 1.43551 au 
 T_jup = 3.104 
[ 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 15.2   n/a MPO437357  

305488 (2008 ER3)          Discovered 2008-Mar-01 by LONEOS at Anderson Mesa
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 ER3 = 2005 NS96 = 2006 WV136 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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