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101731 (1999 EN10)
Classification: Main-belt Asteroid          SPK-ID: 2101731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1110468394377123 1.8765e-07  
a 2.550725481094606 1.5497e-08 au
q 2.267475478145812 4.8942e-07 au
i 1.889126033611141 6.8962e-06 deg
node 322.1019904140438 0.00010327 deg
peri 192.4807582855958 0.00010766 deg
M 138.7396324692076 2.1069e-05 deg
tp 2458627.054634995287
(2019-May-23.55463500)
8.7153e-05 TDB
period 1487.969426814757
4.07
1.356e-05
3.713e-08
d
yr
n .2419404548994257 2.2049e-09 deg/d
Q 2.833975484043401 1.7218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      21375 days (58.52 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:18  

Additional Information
 Earth MOID = 1.27729 au 
 Jupiter MOID = 2.15425 au 
 T_jup = 3.431 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO273086  

101731 (1999 EN10)          Discovered 1999-Mar-14 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 EN10 = 2001 UN59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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