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160574 (1999 EH11)
Classification: Main-belt Asteroid          SPK-ID: 2160574
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 .09599212140122307 4.5091e-08  
a 2.298855881153254 1.0135e-08 au
q 2.078183828325676 1.031e-07 au
i 4.586705091166053 6.0233e-06 deg
node 151.9641907535512 4.8361e-05 deg
peri 43.19276744819854 5.5199e-05 deg
M 359.2039419452216 2.637e-05 deg
tp 2459003.315193722661
(2020-Jun-02.81519372)
9.3257e-05 TDB
period 1273.110339220265
3.49
8.419e-06
2.305e-08
d
yr
n .2827720338996596 1.87e-09 deg/d
Q 2.519527933980834 1.1108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      8157 days (22.33 yr)  
   first obs. used      1997-10-04  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54695  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:22:02  

Additional Information
 Earth MOID = 1.08013 au 
 Jupiter MOID = 2.43765 au 
 T_jup = 3.582 
[ 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 16.7   n/a MPO417855  

160574 (1999 EH11)          Discovered 1999-Mar-15 by Spacewatch at Kitt Peak
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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