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100117 (1993 KM1)
Classification: Main-belt Asteroid          SPK-ID: 2100117
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05823495663443294 4.8188e-08  
a 3.116185525420608 2.3809e-08 au
q 2.934714596482892 1.5206e-07 au
i 5.195113608861557 6.8739e-06 deg
node 173.5551499861502 4.5842e-05 deg
peri 51.67533155040948 6.8795e-05 deg
M 9.698268720412969 5.0087e-05 deg
tp 2459146.371611388412
(2020-Oct-23.87161139)
0.00027961 TDB
period 2009.247264839845
5.50
2.3027e-05
6.304e-08
d
yr
n .1791715764902113 2.0534e-09 deg/d
Q 3.297656454358325 2.5195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      9895 days (27.09 yr)  
   first obs. used      1993-04-20  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59073  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:30:41  

Additional Information
 Earth MOID = 1.92831 au 
 Jupiter MOID = 1.67654 au 
 T_jup = 3.209 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457189.5 (2015-Jun-16.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05819995520676486 4.8777e-08  
q 2.935405313711671 1.5391e-07 au
tp 2457126.723628967654
(2015-Apr-14.22362897)
0.00027993 TDB
node 173.5813803379997 4.585e-05 deg
peri 50.09650913927241 6.8392e-05 deg
i 5.194148462787378 6.8734e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      9895 days (27.09 yr)  
   first obs. used      1993-04-20  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59073  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:30:41  

Additional Information
 Jupiter MOID = 1.67654 au 
 T_jup = 3.209 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.379225100256166E-15 -7.427071259319237E-15 -6.05583607681978E-12 4.809058870803993E-15 -1.086920476661468E-12 1.586298223651965E-16
q -7.427071259319237E-15 2.368762314159963E-14 1.773150392941749E-11 -1.085860818554056E-14 3.178210230725511E-12 8.657775173783823E-16
tp -6.05583607681978E-12 1.773150392941749E-11 7.836341813433802E-8 -4.799346043926586E-11 1.422193452870971E-8 -3.986706675638226E-12
node 4.809058870803993E-15 -1.085860818554056E-14 -4.799346043926586E-11 2.102231704003528E-9 -2.101496812932657E-9 2.742442859468864E-11
peri -1.086920476661468E-12 3.178210230725511E-12 1.422193452870971E-8 -2.101496812932657E-9 4.677451132113645E-9 -2.793258660876686E-11
i 1.586298223651965E-16 8.657775173783823E-16 -3.986706675638226E-12 2.742442859468864E-11 -2.793258660876686E-11 4.724303149948625E-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 15.41   n/a E2021B55  

100117 (1993 KM1)          Discovered 1993-May-25 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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