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308438 (2005 SG176)
Classification: Main-belt Asteroid          SPK-ID: 2308438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09880253237059096 5.7928e-08  
a 3.107586461585944 4.1446e-08 au
q 2.800549049620688 1.7316e-07 au
i 10.73443913612625 7.6411e-06 deg
node 213.2849550245819 3.1287e-05 deg
peri 280.2791665136136 5.0565e-05 deg
M 141.0295845914644 4.1899e-05 deg
tp 2458216.635522513509
(2018-Apr-08.13552251)
0.00023125 TDB
period 2000.936276686841
5.48
4.003e-05
1.096e-07
d
yr
n .1799157745273576 3.5993e-09 deg/d
Q 3.414623873551199 4.5541e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      7170 days (19.63 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:17:28  

Additional Information
 Earth MOID = 1.83964 au 
 Jupiter MOID = 1.73287 au 
 T_jup = 3.186 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO437366  

308438 (2005 SG176)          Discovered 2005-Sep-29 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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