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JPL Small-Body Database Browser
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91305 (1999 FK46)
Classification: Main-belt Asteroid          SPK-ID: 2091305
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07569035833709029 3.3925e-08  
a 2.3434990858045 1.1374e-08 au
q 2.166118800237314 8.1763e-08 au
i 2.244461265216019 3.7034e-06 deg
node 109.6877492359619 0.00012143 deg
peri 342.2075608118743 0.00012594 deg
M 41.14106471298288 3.3338e-05 deg
tp 2458850.749377765606
(2020-Jan-02.24937777)
0.00012114 TDB
period 1310.3750323547
3.59
9.5397e-06
2.612e-08
d
yr
n .2747305092902236 2.0001e-09 deg/d
Q 2.520879371371686 1.2235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1999-03-13  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57337  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:27:34  

Additional Information
 Earth MOID = 1.1829 au 
 Jupiter MOID = 2.58713 au 
 T_jup = 3.558 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO453352  
diameter diameter 2.270 km 0.366 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 15.5 h n/a LCDB (Rev. 2019-August); 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.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
geometric albedo albedo 0.176   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91305 (1999 FK46)          Discovered 1999-Mar-20 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 FK46 = 2001 XE56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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