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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 ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2176764719907402 4.6115e-08  
a 2.672424789914836 1.2103e-08 au
q 2.090700789985579 1.2589e-07 au
i 8.760942959670155 5.0914e-06 deg
node 174.4072962691539 2.3911e-05 deg
peri 328.1106495509319 2.5062e-05 deg
M 183.3305412942132 8.4948e-06 deg
tp 2459783.597147588604
(2022-Jul-23.09714759)
4.0158e-05 TDB
period 1595.719912185723
4.37
1.084e-05
2.968e-08
d
yr
n .2256035017491843 1.5325e-09 deg/d
Q 3.254148789844092 1.4737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      938  
   data-arc span      10980 days (30.06 yr)  
   first obs. used      1990-10-23  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:22:04  

Additional Information
 Earth MOID = 1.10838 au 
 Jupiter MOID = 1.79048 au 
 T_jup = 3.330 
[ show covariance matrix ]

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 15.1   n/a MPO302326  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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