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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06174534100385752 6.92e-08  
a 2.275489258069703 1.8747e-08 AU
q 2.134988397879574 1.5851e-07 AU
i 7.584270108848522 7.4166e-06 deg
node 114.5687602978634 5.0514e-05 deg
peri 6.773695372485609 7.5934e-05 deg
M 324.2178138719984 5.8723e-05 deg
tp 2457125.116336912502
(2015-Apr-12.61633691)
0.00020503 JED
period 1253.749033891306
3.43
1.5494e-05
4.242e-08
d
yr
n .2871388055093091 3.5485e-09 deg/d
Q 2.415990118259832 1.9905e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      6199 days (16.97 yr)  
   first obs. used      1998-01-02  
   last obs. used      2014-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53564  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 05:15:33  

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 15.3 mag n/a MPO319880  

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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