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332369 (2007 ER161)
Classification: Main-belt Asteroid          SPK-ID: 2332369
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1039033276427317 1.5205e-07  
a 2.495537110982947 2.6512e-08 au
q 2.23624250089589 3.741e-07 au
i 3.410045618435663 1.1996e-05 deg
node 187.1840266161227 0.00010469 deg
peri 209.3498204016573 0.00014348 deg
M 224.1398219638502 8.6957e-05 deg
tp 2459543.918168483960
(2021-Nov-25.41816848)
0.00034653 TDB
period 1439.940264189645
3.94
2.2946e-05
6.282e-08
d
yr
n .2500103712306407 3.984e-09 deg/d
Q 2.754831721070005 2.9266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      4936 days (13.51 yr)  
   first obs. used      2005-08-31  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 21:07:27  

Additional Information
 Earth MOID = 1.24368 au 
 Jupiter MOID = 2.62316 au 
 T_jup = 3.460 
[ 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 17.4   n/a MPO423231  

332369 (2007 ER161)          Discovered 2007-Mar-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

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