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305854 (2009 EM10)
Classification: Main-belt Asteroid          SPK-ID: 2305854
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134911787465662 5.2893e-08  
a 2.741304642419311 2.4682e-08 au
q 2.371470333122605 1.4006e-07 au
i 3.61476939535915 6.1779e-06 deg
node 24.23228408251503 0.00011471 deg
peri 196.8570088104804 0.00011814 deg
M 133.3265449755723 2.833e-05 deg
tp 2458386.528088123899
(2018-Sep-25.02808812)
0.00012928 TDB
period 1657.80856554779
4.54
2.2389e-05
6.13e-08
d
yr
n .2171541440196656 2.9327e-09 deg/d
Q 3.111138951716018 2.8011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      7117 days (19.49 yr)  
   first obs. used      2000-03-03  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:05  

Additional Information
 Earth MOID = 1.36361 au 
 Jupiter MOID = 1.86572 au 
 T_jup = 3.334 
[ 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 16.5   n/a MPO437358  

305854 (2009 EM10)          Discovered 2009-Mar-01 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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