Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1320118681009808 3.8644e-08  
a 2.363946068891002 1.4657e-08 au
q 2.051877132246731 9.1153e-08 au
i 7.758300873470234 4.783e-06 deg
node 333.2018005177804 3.3257e-05 deg
peri 323.1442631066861 3.9286e-05 deg
M 170.4157152073146 2.4113e-05 deg
tp 2458372.062757759962
(2018-Sep-10.56275776)
8.6573e-05 TDB
period 1327.561879672839
3.63
1.2347e-05
3.38e-08
d
yr
n .2711738002666342 2.5221e-09 deg/d
Q 2.676015005535273 1.6592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      652  
   data-arc span      10171 days (27.85 yr)  
   first obs. used      1992-03-25  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53974  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:26:52  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-26 08:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin