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101254 (1998 SK93)
Classification: Main-belt Asteroid          SPK-ID: 2101254
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1042767623049514 3.501e-08  
a 2.275737110532196 9.2424e-09 au
q 2.038430612788674 7.8891e-08 au
i 6.334823997010373 4.6452e-06 deg
node 5.881842421746303 3.4688e-05 deg
peri 79.16034916559543 4.1417e-05 deg
M 44.981208085133 2.2762e-05 deg
tp 2458843.821220835140
(2019-Dec-26.32122084)
7.9002e-05 TDB
period 1253.953882087755
3.43
7.639e-06
2.091e-08
d
yr
n .2870918979895994 1.7489e-09 deg/d
Q 2.513043608275719 1.0206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      7908 days (21.65 yr)  
   first obs. used      1998-09-25  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5342  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:34  

Additional Information
 Earth MOID = 1.06555 au 
 Jupiter MOID = 2.65806 au 
 T_jup = 3.594 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456981.5 (2014-Nov-20.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034959174735811 3.4921e-08  
q 2.040306623660211 7.862e-08 au
tp 2457588.955292252164
(2016-Jul-19.45529225)
7.8007e-05 TDB
node 5.927000092097406 3.4651e-05 deg
peri 78.92791532312349 4.1519e-05 deg
i 6.338612929395082 4.6467e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      7908 days (21.65 yr)  
   first obs. used      1998-09-25  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5342  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:34  

Additional Information
 Jupiter MOID = 2.65806 au 
 T_jup = 3.594 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.219454696502705E-15 -2.73053792388593E-15 -1.723729554802266E-13 1.933736880060535E-15 -5.550180636946138E-14 -5.427540931136178E-16
q -2.73053792388593E-15 6.181113721669863E-15 5.228542026036659E-13 -4.330625041603162E-15 1.53919631734171E-13 1.42286578474851E-15
tp -1.723729554802266E-13 5.228542026036659E-13 6.085163751816433E-9 -1.098611213003527E-11 1.792392612632061E-9 1.951914234395369E-12
node 1.933736880060535E-15 -4.330625041603162E-15 -1.098611213003527E-11 1.200690540577401E-9 -1.196051112170707E-9 9.166910310492399E-12
peri -5.550180636946138E-14 1.53919631734171E-13 1.792392612632061E-9 -1.196051112170707E-9 1.723806194311826E-9 -8.495276252650873E-12
i -5.427540931136178E-16 1.42286578474851E-15 1.951914234395369E-12 9.166910310492399E-12 -8.495276252650873E-12 2.15918253474054E-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 16.14   n/a E2021B55  

101254 (1998 SK93)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SK93 = 2000 ED186 = 2003 AA75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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