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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01665994978241085 5.2565e-08  
a 2.748241190032741 2.3925e-08 AU
q 2.702455629816842 1.5063e-07 AU
i 5.289416246151196 6.2446e-06 deg
node 172.6699139615953 5.2402e-05 deg
peri 142.9985371800938 0.00018456 deg
M 308.834378452479 0.00017824 deg
tp 2457237.013778829545
(2015-Aug-02.51377883)
0.0008246 JED
period 1664.104877521251
4.56
2.1731e-05
5.95e-08
d
yr
n .2163325189793531 2.825e-09 deg/d
Q 2.794026750248639 2.4324e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1052  
   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      .51485  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:11:02  

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 (809)
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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