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181708 (1993 FW)
Classification: TransNeptunian Object          SPK-ID: 2181708
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05228078526611911 0.00010765  
a 43.90084216006994 0.0068392 au
q 41.60567165809753 0.0026608 au
i 7.750808767818278 0.00035892 deg
node 187.9251524034813 0.00044224 deg
peri 46.03867244386987 0.08602 deg
M 351.3612989903572 0.077731 deg
tp 2461549.991958248891
(2027-May-24.49195825)
22.513 TDB
period 106244.8050864486
290.88
24.827
0.06797
d
yr
n .003388400964236109 7.9181e-07 deg/d
Q 46.19601266204234 0.0071968 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      5456 days (14.94 yr)  
   first obs. used      1993-03-28  
   last obs. used      2008-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .41812  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 06:37:28  

Additional Information
 Earth MOID = 40.5996 au 
 Jupiter MOID = 36.2165 au 
 T_jup = 5.867 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.8   n/a MPO475532  

181708 (1993 FW)          Discovered 1993-Mar-28 by Jewitt, D. C., Luu, J. X. at Mauna Kea
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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