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46161 (2001 FK78)
Classification: Main-belt Asteroid          SPK-ID: 2046161
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2182416824786528 4.6117e-08  
a 2.671185619138526 1.1968e-08 au
q 2.088221575404952 1.2581e-07 au
i 8.764915647635682 5.0915e-06 deg
node 174.3995335576422 2.3751e-05 deg
peri 328.1423302063004 2.4894e-05 deg
M 228.4576958847117 8.5946e-06 deg
tp 2459783.163043171217
(2022-Jul-22.66304317)
4.0025e-05 TDB
period 1594.610167066848
4.37
1.0717e-05
2.934e-08
d
yr
n .2257605071352265 1.5172e-09 deg/d
Q 3.254149662872099 1.458e-08 au
  Orbit Determination Parameters
   # obs. used (total)      941  
   data-arc span      11005 days (30.13 yr)  
   first obs. used      1990-10-23  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55715  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:46:50  

Additional Information
 Earth MOID = 1.10576 au 
 Jupiter MOID = 1.78976 au 
 T_jup = 3.330 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457309.5 (2015-Oct-14.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157953011709274 4.5992e-08  
q 2.097027408995628 1.2528e-07 au
tp 2456588.406949334180
(2013-Oct-22.90694933)
3.4585e-05 TDB
node 174.6021987148061 2.3776e-05 deg
peri 327.7419426126022 2.4972e-05 deg
i 8.754785757893966 5.0846e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      941  
   data-arc span      11005 days (30.13 yr)  
   first obs. used      1990-10-23  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55715  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:46:50  

Additional Information
 Jupiter MOID = 1.78976 au 
 T_jup = 3.330 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.115218194788347E-15 -5.746355018287167E-15 2.386756304142655E-13 -1.341637450419415E-15 7.132216472893732E-14 -3.324758091582921E-15
q -5.746355018287167E-15 1.56941586610713E-14 -6.377706689165568E-13 4.376563712917782E-15 -1.849531301831544E-13 9.229448682479947E-15
tp 2.386756304142655E-13 -6.377706689165568E-13 1.196100619298253E-9 1.964795696535853E-12 2.748327216787274E-10 -9.007355177112593E-13
node -1.341637450419415E-15 4.376563712917782E-15 1.964795696535853E-12 5.652999373862422E-10 -5.577706052822034E-10 -3.043608109891593E-11
peri 7.132216472893732E-14 -1.849531301831544E-13 2.748327216787274E-10 -5.577706052822034E-10 6.235993972648249E-10 2.985264430660743E-11
i -3.324758091582921E-15 9.229448682479947E-15 -9.007355177112593E-13 -3.043608109891593E-11 2.985264430660743E-11 2.585285221185447E-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 15.12   n/a E2021B10  

46161 (2001 FK78)          Discovered 2001-Mar-19 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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