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JPL Small-Body Database Browser
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91279 (1999 EN8)
Classification: Main-belt Asteroid          SPK-ID: 2091279
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1320118664848168 3.8957e-08  
a 2.36394606973142 1.4868e-08 au
q 2.051877136796728 9.2195e-08 au
i 7.758301564888555 4.8807e-06 deg
node 333.2018025671976 3.338e-05 deg
peri 323.1442604982998 3.9429e-05 deg
M 170.4157152967741 2.4117e-05 deg
tp 2458372.062757094936
(2018-Sep-10.56275709)
8.6612e-05 TDB
period 1327.561880380791
3.63
1.2524e-05
3.429e-08
d
yr
n .2711738001220247 2.5583e-09 deg/d
Q 2.676015002666112 1.683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      10145 days (27.78 yr)  
   first obs. used      1992-03-25  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54162  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:01:41  

Additional Information
 Earth MOID = 1.04227 au 
 Jupiter MOID = 2.54409 au 
 T_jup = 3.525 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO417449  

91279 (1999 EN8)          Discovered 1999-Mar-14 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 EN8 = 2001 XR17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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