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100918 (1998 KF52)
Classification: Main-belt Asteroid          SPK-ID: 2100918
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1894486533543503 3.2446e-08  
a 2.367164581906922 1.0952e-08 au
q 1.918708439596542 7.831e-08 au
i 10.15679822284443 3.8017e-06 deg
node 114.1340546894976 2.857e-05 deg
peri 154.3125893601813 3.1694e-05 deg
M 53.41218823177511 1.5588e-05 deg
tp 2459003.130982950295
(2020-Jun-02.63098295)
5.7033e-05 TDB
period 1330.274015915046
3.64
9.2324e-06
2.528e-08
d
yr
n .2706209365086105 1.8782e-09 deg/d
Q 2.815620724217302 1.3027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      688  
   data-arc span      8083 days (22.13 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57205  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:21  

Additional Information
 Earth MOID = .905915 au 
 Jupiter MOID = 2.31176 au 
 T_jup = 3.502 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457286.5 (2015-Sep-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1891077201970155 3.2528e-08  
q 1.920237396794764 7.8474e-08 au
tp 2457672.159375547219
(2016-Oct-10.65937555)
5.4072e-05 TDB
node 114.1734669943312 2.8558e-05 deg
peri 154.1684702469994 3.1679e-05 deg
i 10.15741413137913 3.8018e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      688  
   data-arc span      8083 days (22.13 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57205  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:21  

Additional Information
 Jupiter MOID = 2.31176 au 
 T_jup = 3.502 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.058055658210472E-15 -2.536588255378669E-15 -3.734489262518211E-13 -1.01965391273845E-15 -8.472255036201459E-14 -7.145630778751365E-16
q -2.536588255378669E-15 6.158154372335181E-15 1.012062253353602E-12 2.439923668591029E-15 2.25923103392647E-13 1.940884994557206E-15
tp -3.734489262518211E-13 1.012062253353602E-12 2.923833992131295E-9 8.972888386829014E-12 7.70216945842127E-10 2.112108887651299E-12
node -1.01965391273845E-15 2.439923668591029E-15 8.972888386829014E-12 8.155788764762167E-10 -8.003266603856383E-10 1.866300295581332E-11
peri -8.472255036201459E-14 2.25923103392647E-13 7.70216945842127E-10 -8.003266603856383E-10 1.003546790250148E-9 -1.783342452105942E-11
i -7.145630778751365E-16 1.940884994557206E-15 2.112108887651299E-12 1.866300295581332E-11 -1.783342452105942E-11 1.445355958331929E-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 15.86   n/a E2021B55  

100918 (1998 KF52)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 KF52 = 2002 PE124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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