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100781 (1998 FX56)
Classification: Main-belt Asteroid          SPK-ID: 2100781
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3066890546882293 2.8699e-08  
a 2.786185531930953 1.0648e-08 au
q 1.931692924957028 7.9976e-08 au
i 4.283370038952532 5.165e-06 deg
node 178.5266753375839 4.9587e-05 deg
peri 261.4042440713055 5.0371e-05 deg
M 30.32545491971226 9.0725e-06 deg
tp 2459057.407029401018
(2020-Jul-26.90702940)		 4.2339e-05 TDB
period 1698.687441029894
4.65		 9.7382e-06
2.666e-08		 d
yr
n .2119283343742957 1.2149e-09 deg/d
Q 3.640678138904879 1.3914e-08 au
   Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      8343 days (22.84 yr)  
   first obs. used      1998-03-20  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50751  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:10  

Additional Information
 Earth MOID = .952439 au 
 Jupiter MOID = 1.66354 au 
 T_jup = 3.257 
[ 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 15.0   n/a MPO493566  

100781 (1998 FX56)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 FX56 = 2001 QR78 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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