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JPL Small-Body Database Browser
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295821 (2008 UN338)
Classification: Main-belt Asteroid          SPK-ID: 2295821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1360806564811481 5.9261e-08  
a 2.339705599764665 2.2897e-08 au
q 2.021316925776071 1.3868e-07 au
i 4.906422353802179 6.8126e-06 deg
node 33.93234359304503 7.4151e-05 deg
peri 266.5213950682553 7.9137e-05 deg
M 79.98953453391177 2.487e-05 deg
tp 2458310.050309902844
(2018-Jul-10.55030990)
9.1285e-05 TDB
period 1307.19461044803
3.58
1.9188e-05
5.253e-08
d
yr
n .2753989322803381 4.0426e-09 deg/d
Q 2.658094273753259 2.6012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      7593 days (20.79 yr)  
   first obs. used      1997-10-21  
   last obs. used      2018-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52974  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:40:22  

Additional Information
 Earth MOID = 1.01239 au 
 Jupiter MOID = 2.54448 au 
 T_jup = 3.548 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO455187  

295821 (2008 UN338)          Discovered 2008-Oct-21 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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