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46557 (1991 FW3)
Classification: Main-belt Asteroid          SPK-ID: 2046557
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01545734642662932 3.5797e-08  
a 2.747726707062335 1.3567e-08 au
q 2.705254143465571 1.0133e-07 au
i 5.289851107229418 4.061e-06 deg
node 172.5335930053232 4.2563e-05 deg
peri 135.9947922542569 0.00013931 deg
M 28.4626818541536 0.00013263 deg
tp 2458868.967811258453
(2020-Jan-20.46781126)
0.00061286 TDB
period 1663.637607643319
4.55
1.2322e-05
3.374e-08
d
yr
n .216393280811901 1.6027e-09 deg/d
Q 2.790199270659099 1.3777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1815  
   data-arc span      10389 days (28.44 yr)  
   first obs. used      1991-03-22  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48839  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:11:45  

Additional Information
 Earth MOID = 1.69399 au 
 Jupiter MOID = 2.224 au 
 T_jup = 3.341 
[ 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 13.4   n/a MPO347847  

46557 (1991 FW3)          Discovered 1991-Mar-22 by Debehogne, H. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 FW3 = 1996 JM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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