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11877 (1990 EL8)
Classification: Main-belt Asteroid          SPK-ID: 2011877
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03813373867292579 4.5953e-08  
a 2.381803206420836 1.4692e-08 AU
q 2.290976145376847 1.1077e-07 AU
i 4.209253071684376 6.6351e-06 deg
node 352.3191676056961 6.2879e-05 deg
peri 288.8540751709473 0.00011374 deg
M 160.5419566920088 9.8349e-05 deg
tp 2456401.753081436828
(2013-Apr-19.25308144)
0.00036508 JED
period 1342.632761703915
3.68
1.2423e-05
3.401e-08
d
yr
n .2681299088390555 2.481e-09 deg/d
Q 2.472630267464825 1.5253e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1171  
   data-arc span      10518 days (28.80 yr)  
   first obs. used      1986-03-04  
   last obs. used      2014-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46914  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:13:53  

Additional Information
 Earth MOID = 1.2802 AU 
 T_jup = 3.533 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO319233  

11877 (1990 EL8)          Discovered 1990-Mar-05 by Debehogne, H. at La Silla (809)
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 EL8 = 1991 PJ14 = 1995 TU2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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