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46108 (2001 FW18)
Classification: Main-belt Asteroid          SPK-ID: 2046108
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1827434359382295 5.0616e-08  
a 2.24144535814435 9.1305e-09 au
q 1.831835931929256 1.1398e-07 au
i 2.033334120648171 4.0025e-06 deg
node 281.8121447246828 0.00014224 deg
peri 56.984520332626 0.00014265 deg
M 359.3174390624709 1.358e-05 deg
tp 2458602.823965040055
(2019-Apr-29.32396504)
4.6242e-05 TDB
period 1225.718274251592
3.36
7.4894e-06
2.05e-08
d
yr
n .293705337974023 1.7946e-09 deg/d
Q 2.651054784359444 1.0799e-08 au
  Orbit Determination Parameters
   # obs. used (total)      876  
   data-arc span      10428 days (28.55 yr)  
   first obs. used      1991-04-13  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54942  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:25:33  

Additional Information
 Earth MOID = .822858 au 
 Jupiter MOID = 2.72769 au 
 T_jup = 3.611 
[ 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 15.5   n/a MPO250640  
rotation period rot_per 3.06 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

46108 (2001 FW18)          Discovered 2001-Mar-19 by LONEOS at Anderson Mesa
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 FW18 = 1992 XF1 = 1998 KW22 = 2000 AY12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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