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JPL Small-Body Database Browser
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305557 (2008 UJ282)
Classification: Main-belt Asteroid          SPK-ID: 2305557
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1178382859629818 5.0053e-08  
a 2.433186843633496 2.3818e-08 au
q 2.146464276552047 1.2796e-07 au
i 7.933301741115563 6.1567e-06 deg
node 61.41112201374121 5.6843e-05 deg
peri 232.3826162181355 6.7922e-05 deg
M 24.37507063817086 3.6997e-05 deg
tp 2458506.634716028712
(2019-Jan-23.13471603)
0.00014262 TDB
period 1386.314022686225
3.80
2.0356e-05
5.573e-08
d
yr
n .2596814243445631 3.813e-09 deg/d
Q 2.719909410714946 2.6625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      6497 days (17.79 yr)  
   first obs. used      2002-01-14  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57462  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:39:45  

Additional Information
 Earth MOID = 1.1403 au 
 Jupiter MOID = 2.43815 au 
 T_jup = 3.484 
[ 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 16.5   n/a MPO440439  

305557 (2008 UJ282)          Discovered 2008-Oct-28 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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