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85758 (1998 SK160)
Classification: Main-belt Asteroid          SPK-ID: 2085758
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1094777978716351 4.0074e-08  
a 2.364322713052637 1.0037e-08 au
q 2.105481868969744 9.4108e-08 au
i 6.400210208643542 4.4573e-06 deg
node 70.82879936710204 3.3072e-05 deg
peri 191.5717543748069 3.8569e-05 deg
M 84.52897928361955 1.872e-05 deg
tp 2458688.710358714463
(2019-Jul-24.21035871)
6.9466e-05 TDB
period 1327.879170126741
3.64
8.4555e-06
2.315e-08
d
yr
n .2711090045682691 1.7263e-09 deg/d
Q 2.623163557135529 1.1136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      880  
   data-arc span      10583 days (28.97 yr)  
   first obs. used      1991-11-04  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:55  

Additional Information
 Earth MOID = 1.09044 au 
 Jupiter MOID = 2.42618 au 
 T_jup = 3.532 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457234.5 (2015-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1088669862417749 4.0023e-08  
q 2.107185361418281 9.3927e-08 au
tp 2457361.301563165198
(2015-Dec-04.80156317)
7.2596e-05 TDB
node 70.84406516168877 3.3063e-05 deg
peri 191.8607577590266 3.8651e-05 deg
i 6.400876599723689 4.4579e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      880  
   data-arc span      10583 days (28.97 yr)  
   first obs. used      1991-11-04  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:55  

Additional Information
 Jupiter MOID = 2.42618 au 
 T_jup = 3.532 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.601835847793593E-15 -3.742340170731309E-15 -1.122356555256917E-12 1.233088616268083E-14 -2.925068782203136E-13 -3.507072455798146E-16
q -3.742340170731309E-15 8.822264343911377E-15 2.43131537873577E-12 -2.938919397016709E-14 6.303626104181203E-13 9.194495636888697E-16
tp -1.122356555256917E-12 2.43131537873577E-12 5.270163762892633E-9 -1.994315855186669E-11 1.464893236752443E-9 2.592853810313797E-12
node 1.233088616268083E-14 -2.938919397016709E-14 -1.994315855186669E-11 1.093183711274094E-9 -1.091146884068563E-9 -3.707826633001229E-11
peri -2.925068782203136E-13 6.303626104181203E-13 1.464893236752443E-9 -1.091146884068563E-9 1.493879140380304E-9 3.760547798147468E-11
i -3.507072455798146E-16 9.194495636888697E-16 2.592853810313797E-12 -3.707826633001229E-11 3.760547798147468E-11 1.987323299403769E-11

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 15.6   n/a MPO244836  

85758 (1998 SK160)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Alternate Designations
 1998 SK160 = 2002 XF95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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