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JPL Small-Body Database Browser
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173215 (1998 SG176)
Classification: Main-belt Asteroid          SPK-ID: 2173215
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2978311981585905 9.3911e-08  
a 2.693184029787889 3.0086e-08 au
q 1.89106980333458 2.5253e-07 au
i 2.751445315223781 1.1496e-05 deg
node 188.1807323619917 0.0002126 deg
peri 200.9929659996938 0.00021515 deg
M 225.4400494472046 3.1392e-05 deg
tp 2459203.907620617388
(2020-Dec-20.40762062)
0.0001494 TDB
period 1614.349162063861
4.42
2.7051e-05
7.406e-08
d
yr
n .2230000847770496 3.7367e-09 deg/d
Q 3.495298256241197 3.9046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      6671 days (18.26 yr)  
   first obs. used      1998-09-25  
   last obs. used      2016-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65583  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 07:15:03  

Additional Information
 Earth MOID = .895818 au 
 Jupiter MOID = 1.95081 au 
 T_jup = 3.304 
[ 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 17.5   n/a MPO254219  

173215 (1998 SG176)          Discovered 1998-Sep-25 by LONEOS at Anderson Mesa
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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