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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177745012219511 4.6208e-08  
a 2.433694581497391 2.2011e-08 au
q 2.14706741603497 1.1566e-07 au
i 7.932694134027559 6.1134e-06 deg
node 61.41277217060147 5.3564e-05 deg
peri 232.5089894437419 6.4401e-05 deg
M 128.1130451974411 3.5998e-05 deg
tp 2458506.998595296726
(2019-Jan-23.49859530)
0.00013885 TDB
period 1386.747972615728
3.80
1.8813e-05
5.151e-08
d
yr
n .259600163194006 3.5218e-09 deg/d
Q 2.720321746959811 2.4603e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      6587 days (18.03 yr)  
   first obs. used      2002-01-14  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55239  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:55:45  

Additional Information
 Earth MOID = 1.14157 au 
 Jupiter MOID = 2.43889 au 
 T_jup = 3.483 
[ 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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