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

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01665994975255532 5.2561e-08  
a 2.748241189887857 2.3924e-08 AU
q 2.702455629756423 1.5062e-07 AU
i 5.289416261213161 6.2445e-06 deg
node 172.6699136291978 5.2395e-05 deg
peri 142.9985375431898 0.00018455 deg
M 308.834378444363 0.00017824 deg
tp 2457237.013778848358
(2015-Aug-02.51377885)
0.0008246 JED
period 1664.104877389657
4.56
2.1729e-05
5.949e-08
d
yr
n .2163325189964602 2.8248e-09 deg/d
Q 2.794026750019292 2.4322e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      8501 days (23.27 yr)  
   first obs. used      1991-03-22  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51227  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 04:10:53  

Additional Information
 Earth MOID = 1.69228 AU 
 T_jup = 3.340 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO263730  

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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