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249436 (2009 FL31)
Classification: Main-belt Asteroid          SPK-ID: 2249436
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08244660176181776 5.788e-08  
a 3.134009568841538 3.2148e-08 au
q 2.875621130001534 1.9242e-07 au
i 12.18533857203279 6.4264e-06 deg
node 15.1620675152379 2.1516e-05 deg
peri 224.1927331594186 3.9698e-05 deg
M 328.6482537912709 3.3478e-05 deg
tp 2459176.985137725007
(2020-Nov-23.48513772)
0.00018853 TDB
period 2026.510713566348
5.55
3.1181e-05
8.537e-08
d
yr
n .1776452488457143 2.7333e-09 deg/d
Q 3.392398007681543 3.4798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      8044 days (22.02 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54283  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:43:56  

Additional Information
 Earth MOID = 1.87941 au 
 Jupiter MOID = 1.63678 au 
 T_jup = 3.172 
[ 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 14.9   n/a MPO433634  
diameter diameter 5.712 km 0.332 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249436 (2009 FL31)          Discovered 2009-Mar-25 by La Sagra at La Sagra
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 FL31 = 1998 HF68 = 2005 OK13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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