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187658 (2007 EV161)
Classification: Main-belt Asteroid          SPK-ID: 2187658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04718414560362362 4.8543e-08  
a 2.696496923485734 2.284e-08 au
q 2.569265020028261 1.2899e-07 au
i 9.745803656911111 4.977e-06 deg
node 166.4108519698205 2.8821e-05 deg
peri 183.2060906528581 5.9741e-05 deg
M 197.9271095537532 5.323e-05 deg
tp 2459928.625426827415
(2022-Dec-15.12542683)
0.00024031 TDB
period 1617.328801480258
4.43
2.0549e-05
5.626e-08
d
yr
n .2225892469549238 2.8281e-09 deg/d
Q 2.823728826943209 2.3918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      6170 days (16.89 yr)  
   first obs. used      2003-03-26  
   last obs. used      2020-02-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55342  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:48:45  

Additional Information
 Earth MOID = 1.56074 au 
 Jupiter MOID = 2.38237 au 
 T_jup = 3.347 
[ 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 16.06   n/a E2021B55  

187658 (2007 EV161)          Discovered 2007-Mar-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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