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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09600305137731627 4.4446e-08  
a 2.299036477763352 8.9923e-09 au
q 2.078321960670312 1.0215e-07 au
i 4.586767963053451 5.8798e-06 deg
node 151.9617118901866 4.3661e-05 deg
peri 43.27538515887951 5.0861e-05 deg
M 55.68578448850617 2.4783e-05 deg
tp 2459003.548604887157
(2020-Jun-03.04860489)
8.7702e-05 TDB
period 1273.260364236371
3.49
7.4702e-06
2.045e-08
d
yr
n .2827387155932616 1.6588e-09 deg/d
Q 2.519750994856391 9.8556e-09 au
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      8265 days (22.63 yr)  
   first obs. used      1997-10-04  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53439  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:55  

Additional Information
 Earth MOID = 1.07955 au 
 Jupiter MOID = 2.43636 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 16.85   n/a E2021B55  

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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