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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848840642009658 4.605e-08  
a 2.399321498255726 1.4243e-08 au
q 1.955725188333457 1.1381e-07 au
i 6.681767539361583 5.4777e-06 deg
node 165.2007482467771 4.4996e-05 deg
peri 164.460248635011 4.7621e-05 deg
M 223.5336031705841 1.8559e-05 deg
tp 2459115.081678236826
(2020-Sep-22.58167824)
7.2274e-05 TDB
period 1357.472670703108
3.72
1.2088e-05
3.31e-08
d
yr
n .265198709167041 2.3615e-09 deg/d
Q 2.842917808177996 1.6877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      7517 days (20.58 yr)  
   first obs. used      1998-09-24  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58724  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:55:58  

Additional Information
 Earth MOID = .945028 au 
 Jupiter MOID = 2.52001 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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