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118363 (1999 FH46)
Classification: Main-belt Asteroid          SPK-ID: 2118363
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06203464933931366 6.1781e-08  
a 2.596326204426498 1.6719e-08 au
q 2.435264018764429 1.5469e-07 au
i 4.280963815067984 6.656e-06 deg
node 20.39492353397088 5.5447e-05 deg
peri 193.1666047045941 7.5793e-05 deg
M 83.00233965652463 4.7385e-05 deg
tp 2459044.189858005401
(2020-Jul-13.68985801)
0.00020258 TDB
period 1528.049108529986
4.18
1.476e-05
4.041e-08
d
yr
n .2355945224472054 2.2757e-09 deg/d
Q 2.757388390088567 1.7757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      8614 days (23.58 yr)  
   first obs. used      1998-01-01  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:10:32  

Additional Information
 Earth MOID = 1.42964 au 
 Jupiter MOID = 2.20347 au 
 T_jup = 3.410 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457485.5 (2016-Apr-07.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06234911704974869 6.2354e-08  
q 2.433374290482155 1.5656e-07 au
tp 2457511.859170395349
(2016-May-03.35917040)
0.00020502 TDB
node 20.43646007692005 5.5442e-05 deg
peri 191.7932783214533 7.5164e-05 deg
i 4.281852800268872 6.6562e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      8614 days (23.58 yr)  
   first obs. used      1998-01-01  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:10:32  

Additional Information
 Jupiter MOID = 2.20347 au 
 T_jup = 3.410 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.887968714834605E-15 -9.720832004871035E-15 -7.110921005594049E-12 -1.053438475001713E-14 -1.736158374912837E-12 5.131872021879645E-16
q -9.720832004871035E-15 2.451073824645898E-14 1.699287886725613E-11 2.655348985767369E-14 4.143877557590788E-12 -1.395929196090427E-15
tp -7.110921005594049E-12 1.699287886725613E-11 4.203469821118373E-8 1.62475008113885E-11 1.041813767906128E-8 -5.07009217470881E-13
node -1.053438475001713E-14 2.655348985767369E-14 1.62475008113885E-11 3.07378470147321E-9 -3.060671281904369E-9 -1.078852387821816E-10
peri -1.736158374912837E-12 4.143877557590788E-12 1.041813767906128E-8 -3.060671281904369E-9 5.649692361329393E-9 1.074866002376191E-10
i 5.131872021879645E-16 -1.395929196090427E-15 -5.07009217470881E-13 -1.078852387821816E-10 1.074866002376191E-10 4.430534816597733E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.98   n/a MPO637508  

118363 (1999 FH46)          Discovered 1999-Mar-20 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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