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JPL Small-Body Database Browser
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423237 (2004 SG55)
Classification: Main-belt Asteroid          SPK-ID: 2423237
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183496637113195 1.1396e-07  
a 2.598893718492213 6.6785e-08 au
q 2.291315520887199 2.6771e-07 au
i 13.72041134957766 1.0615e-05 deg
node 357.4484742402606 3.6757e-05 deg
peri 282.2637814484526 0.00017451 deg
M 326.7320960889124 0.00021402 deg
tp 2459141.917821791861
(2020-Oct-19.41782179)
0.00091477 TDB
period 1530.316306706129
4.19
5.8988e-05
1.615e-07
d
yr
n .235245483840441 9.0679e-09 deg/d
Q 2.906471916097227 7.4689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      5249 days (14.37 yr)  
   first obs. used      2004-09-11  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55605  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:19:18  

Additional Information
 Earth MOID = 1.32229 au 
 Jupiter MOID = 2.34932 au 
 T_jup = 3.366 
[ 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 16.9   n/a MPO427994  

423237 (2004 SG55)          Discovered 2004-Sep-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-02-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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