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173787 (2001 SF85)
Classification: Main-belt Asteroid          SPK-ID: 2173787
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02455991119845483 5.531e-08  
a 2.784508806405435 3.0963e-08 au
q 2.716121517388802 1.584e-07 au
i 5.615333677601045 7.8866e-06 deg
node 326.7800899320184 6.5352e-05 deg
peri 294.3811092517566 0.00020434 deg
M 93.06234516953029 0.00018925 deg
tp 2458561.774565990919
(2019-Mar-19.27456599)
0.00089557 TDB
period 1697.15426744888
4.65
2.8308e-05
7.75e-08
d
yr
n .2121197859880722 3.5381e-09 deg/d
Q 2.852896095422068 3.1724e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      7858 days (21.51 yr)  
   first obs. used      1999-01-23  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 13:05:55  

Additional Information
 Earth MOID = 1.7062 au 
 Jupiter MOID = 2.17312 au 
 T_jup = 3.324 
[ 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 15.8   n/a MPO348424  

173787 (2001 SF85)          Discovered 2001-Sep-20 by LINEAR at Socorro
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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