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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06202521030827986 6.6109e-08  
a 2.275617384303345 1.6927e-08 au
q 2.134471737460752 1.5385e-07 au
i 7.582522141000694 7.2555e-06 deg
node 114.5565799545315 4.5575e-05 deg
peri 6.329013935238841 6.8824e-05 deg
M 79.46624784906304 5.1774e-05 deg
tp 2457123.724593153741
(2015-Apr-11.22459315)
0.00017979 JED
period 1253.854927867067
3.43
1.399e-05
3.83e-08
d
yr
n .287114555279849 3.2035e-09 deg/d
Q 2.416763031145937 1.7977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      630  
   data-arc span      6290 days (17.22 yr)  
   first obs. used      1998-01-02  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49121  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 18:27:37  

Additional Information
 Earth MOID = 1.15058 au 
 Jupiter MOID = 2.62722 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 15.4 mag n/a MPO337788  

69593 (1998 EN21)          Discovered 1998-Mar-11 by BAO Schmidt CCD Asteroid Program at Xinglong
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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