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100917 (1998 KX51)
Classification: Main-belt Asteroid          SPK-ID: 2100917
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043520627914867 3.8388e-08  
a 2.350184400216953 9.3882e-09 au
q 1.869919370092246 8.7133e-08 au
i 10.15985328234136 3.3116e-06 deg
node 155.8948140205675 1.965e-05 deg
peri 44.97535131687575 2.1266e-05 deg
M 67.02112843886641 9.4749e-06 deg
tp 2458755.503110392267
(2019-Sep-29.00311039)
3.3841e-05 TDB
period 1315.986201862222
3.60
7.8854e-06
2.159e-08
d
yr
n .2735590992447887 1.6392e-09 deg/d
Q 2.830449430341661 1.1307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      8180 days (22.40 yr)  
   first obs. used      1998-05-19  
   last obs. used      2020-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:30  

Additional Information
 Earth MOID = .883954 au 
 Jupiter MOID = 2.15385 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457456.5 (2016-Mar-09.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043828099419247 3.8422e-08  
q 1.869234668663726 8.7141e-08 au
tp 2457439.262885642949
(2016-Feb-20.76288564)
3.0377e-05 TDB
node 155.9317097822171 1.9653e-05 deg
peri 44.72344170214761 2.127e-05 deg
i 10.159722647464 3.3117e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      8180 days (22.40 yr)  
   first obs. used      1998-05-19  
   last obs. used      2020-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:30  

Additional Information
 Jupiter MOID = 2.15385 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.476255402746624E-15 -3.338239069892313E-15 3.387870941214079E-13 3.616646405312311E-15 3.15755983272698E-14 -4.800779907715506E-15
q -3.338239069892313E-15 7.593519413901562E-15 -7.183639060231193E-13 -9.665932090200125E-15 -5.745409795457934E-14 1.073264270627453E-14
tp 3.387870941214079E-13 -7.183639060231193E-13 9.227546055009894E-10 -4.489270306194132E-12 2.537134795320778E-10 -4.021924281405363E-12
node 3.616646405312311E-15 -9.665932090200125E-15 -4.489270306194132E-12 3.862583806294011E-10 -3.81426946116253E-10 3.935534359771908E-12
peri 3.15755983272698E-14 -5.745409795457934E-14 2.537134795320778E-10 -3.81426946116253E-10 4.524116427762304E-10 -4.801991544722895E-12
i -4.800779907715506E-15 1.073264270627453E-14 -4.021924281405363E-12 3.935534359771908E-12 -4.801991544722895E-12 1.096746199715929E-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 15.9   n/a MPO422321  

100917 (1998 KX51)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 KX51 = 2002 NF35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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