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85759 (1998 ST161)
Classification: Main-belt Asteroid          SPK-ID: 2085759
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848776938230405 4.5881e-08  
a 2.400566802515488 1.1852e-08 au
q 1.956755548198274 1.136e-07 au
i 6.681467212375822 4.9402e-06 deg
node 165.1744428357605 4.2347e-05 deg
peri 164.3015776840354 4.4392e-05 deg
M 329.7584486687433 1.4276e-05 deg
tp 2459114.622344694314
(2020-Sep-22.12234469)
5.4107e-05 TDB
period 1358.529648162918
3.72
1.0061e-05
2.755e-08
d
yr
n .264992376490872 1.9625e-09 deg/d
Q 2.844378056832702 1.4043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      630  
   data-arc span      7935 days (21.72 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59183  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:17:56  

Additional Information
 Earth MOID = .946945 au 
 Jupiter MOID = 2.52092 au 
 T_jup = 3.494 
[ 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 15.7   n/a MPO432401  

85759 (1998 ST161)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 ST161 = 1998 SO164 = 2001 HU30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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