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JPL Small-Body Database Browser
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390991 (2005 SG85)
Classification: Main-belt Asteroid          SPK-ID: 2390991
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06107191414955295 6.4954e-08  
a 3.06250582618347 5.3211e-08 au
q 2.875472733284287 2.0937e-07 au
i 8.947827799281841 7.5085e-06 deg
node 189.6781375299836 4.2996e-05 deg
peri 142.5510878803738 7.0816e-05 deg
M 228.5793805178484 5.8722e-05 deg
tp 2459315.119432141030
(2021-Apr-10.61943214)
0.00032496 TDB
period 1957.554275611292
5.36
5.1019e-05
1.397e-07
d
yr
n .1839029468991768 4.7929e-09 deg/d
Q 3.249538919082653 5.646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      4943 days (13.53 yr)  
   first obs. used      2005-09-24  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60863  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:42:33  

Additional Information
 Earth MOID = 1.87131 au 
 Jupiter MOID = 2.01008 au 
 T_jup = 3.212 
[ 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 16.2   n/a MPO434443  

390991 (2005 SG85)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2005 SG85 = 2011 XP2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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