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69593 (1998 EN21)
Classification: Main-belt Asteroid          SPK-ID: 2069593
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06163975919197717 7.4226e-08  
a 2.275357598638289 2.1701e-08 AU
q 2.135105104182589 1.6645e-07 AU
i 7.584299237077595 7.7105e-06 deg
node 114.5684956645163 5.2993e-05 deg
peri 6.784225333558754 8.2729e-05 deg
M 266.7669301605453 6.7365e-05 deg
tp 2457125.168684597288
(2015-Apr-12.66868460)
0.00023689 JED
period 1253.640222898267
3.43
1.7935e-05
4.91e-08
d
yr
n .2871637280173757 4.1081e-09 deg/d
Q 2.415610093093988 2.3038e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      479  
   data-arc span      5721 days (15.66 yr)  
   first obs. used      1998-01-02  
   last obs. used      2013-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54975  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 12:40:38  

Additional Information
 Earth MOID = 1.15109 AU 
 T_jup = 3.595 
[ 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 15.2 mag n/a MPO267918  

69593 (1998 EN21)          Discovered 1998-Mar-11 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 EN21 = 2000 UV106 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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