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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06174533532365086 7.4189e-08  
a 2.275489256006763 2.1504e-08 AU
q 2.13498840886926 1.6651e-07 AU
i 7.584270028800058 7.7105e-06 deg
node 114.5687606151785 5.2992e-05 deg
peri 6.77368953748691 8.2684e-05 deg
M 324.2178204620235 6.7716e-05 deg
tp 2457125.116313792378
(2015-Apr-12.61631379)
0.00023671 JED
period 1253.749032186349
3.43
1.7772e-05
4.866e-08
d
yr
n .2871388058997856 4.0702e-09 deg/d
Q 2.415990103144265 2.2831e-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 = 1.15121 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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