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85755 (1998 SK156)
Classification: Main-belt Asteroid          SPK-ID: 2085755
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1065554949081297 5.6149e-08  
a 2.780997672544153 2.067e-08 au
q 2.484667089207854 1.5825e-07 au
i 4.007853323278334 6.6589e-06 deg
node 14.88603931250244 7.0457e-05 deg
peri 28.4226596795483 7.4994e-05 deg
M 218.5297774477796 2.8296e-05 deg
tp 2459666.174469630705
(2022-Mar-27.67446963)
0.00013726 TDB
period 1693.945232740376
4.64
1.8885e-05
5.17e-08
d
yr
n .2125216288236254 2.3694e-09 deg/d
Q 3.077328255880453 2.2872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      7514 days (20.57 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60501  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:44:40  

Additional Information
 Earth MOID = 1.49408 au 
 Jupiter MOID = 2.29907 au 
 T_jup = 3.321 
[ 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 15.3   n/a MPO385351  

85755 (1998 SK156)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 SK156 = 2002 NJ47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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