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268985 (2007 EH80)
Classification: Main-belt Asteroid          SPK-ID: 2268985
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05132132498256493 3.8875e-08  
a 2.695954292482672 2.1703e-08 au
q 2.557594346100028 1.1059e-07 au
i 5.70675934140061 7.1663e-06 deg
node 188.9911399586534 4.4396e-05 deg
peri 88.40785462486654 8.4555e-05 deg
M 270.8497025931782 7.2579e-05 deg
tp 2459400.893952844232
(2021-Jul-05.39395284)
0.00032673 TDB
period 1616.840629999891
4.43
1.9524e-05
5.345e-08
d
yr
n .2226564531595327 2.6887e-09 deg/d
Q 2.834314238865317 2.2817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      6159 days (16.86 yr)  
   first obs. used      2003-05-23  
   last obs. used      2020-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58095  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:09:26  

Additional Information
 Earth MOID = 1.54949 au 
 Jupiter MOID = 2.21693 au 
 T_jup = 3.361 
[ 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 MPO427490  

268985 (2007 EH80)          Discovered 2007-Mar-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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