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JPL Small-Body Database Browser
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523981 (1999 NE51)
Classification: Main-belt Asteroid          SPK-ID: 2523981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1782797166618132 8.691e-08  
a 2.331379750150802 2.5825e-08 au
q 1.915742028862828 1.9499e-07 au
i 23.80609043192369 9.706e-06 deg
node 287.836925775659 2.574e-05 deg
peri 339.8897925484787 5.1615e-05 deg
M 228.8273406581872 5.0182e-05 deg
tp 2459074.260424731551
(2020-Aug-12.76042473)
0.00018666 TDB
period 1300.22333738714
3.56
2.1604e-05
5.915e-08
d
yr
n .2768755102669031 4.6006e-09 deg/d
Q 2.747017471438777 3.043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      7119 days (19.49 yr)  
   first obs. used      1999-07-13  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:47:10  

Additional Information
 Earth MOID = .908482 au 
 Jupiter MOID = 2.44076 au 
 T_jup = 3.437 
[ 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 16.5   .32744 E2018Y42 autocmod 2.6q

523981 (1999 NE51)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: Last Updated: 2019-05-29

Alternate Designations
 1999 NE51 = 2006 MM12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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