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357630 (2005 EH257)
Classification: Main-belt Asteroid          SPK-ID: 2357630
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2396421251143188 1.401e-07  
a 2.549451951375462 2.5876e-08 au
q 1.938495867870999 3.7082e-07 au
i 4.413963373614826 1.6278e-05 deg
node 341.979578862048 6.3662e-05 deg
peri 311.7520944633535 8.6479e-05 deg
M 183.9842549119553 4.6959e-05 deg
tp 2459727.472012772375
(2022-May-27.97201277)
0.00018741 TDB
period 1486.855192796219
4.07
2.2637e-05
6.198e-08
d
yr
n .2421217625927475 3.6862e-09 deg/d
Q 3.160408034879925 3.2077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      4986 days (13.65 yr)  
   first obs. used      2005-03-11  
   last obs. used      2018-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62422  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 08:30:52  

Additional Information
 Earth MOID = .925933 au 
 Jupiter MOID = 2.06686 au 
 T_jup = 3.396 
[ 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 17.2   n/a MPO460410  

357630 (2005 EH257)          Discovered 2005-Mar-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

Alternate Designations
 2005 EH257 = 2006 TO66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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