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233548 (2007 JW28)
Classification: Main-belt Asteroid          SPK-ID: 2233548
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1364408382551369 5.1672e-08  
a 2.227572778539772 1.2669e-08 au
q 1.923640881361481 1.1769e-07 au
i 7.932779974189192 5.9483e-06 deg
node 48.635653189843 3.282e-05 deg
peri 163.0545634650128 3.7107e-05 deg
M 349.7708200285851 1.6027e-05 deg
tp 2459035.005203957341
(2020-Jul-04.50520396)
5.4077e-05 TDB
period 1214.356718657342
3.32
1.036e-05
2.836e-08
d
yr
n .2964532533719048 2.5291e-09 deg/d
Q 2.531504675718063 1.4398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      7383 days (20.21 yr)  
   first obs. used      2000-03-04  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4975  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 01:52:51  

Additional Information
 Earth MOID = .918601 au 
 Jupiter MOID = 2.43365 au 
 T_jup = 3.620 
[ 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 17.0   n/a MPO454689  

233548 (2007 JW28)          Discovered 2007-May-10 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

Alternate Designations
 2007 JW28 = 2008 SA100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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