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JPL Small-Body Database Browser
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74517 (1999 FU31)
Classification: Main-belt Asteroid          SPK-ID: 2074517
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .190779031432017 3.6048e-08  
a 3.14469325739499 2.2373e-08 au
q 2.544751723598379 1.2043e-07 au
i 21.06522357870905 6.5689e-06 deg
node 208.1581446457925 1.1294e-05 deg
peri 280.9413998743822 2.0376e-05 deg
M 266.4169284219385 1.7311e-05 deg
tp 2459129.993527659668
(2020-Oct-07.49352766)
9.9623e-05 TDB
period 2036.881956780809
5.58
2.1737e-05
5.951e-08
d
yr
n .1767407280532654 1.8861e-09 deg/d
Q 3.744634791191601 2.6641e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      7558 days (20.69 yr)  
   first obs. used      1999-03-19  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50676  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:48:12  

Additional Information
 Earth MOID = 1.65513 au 
 Jupiter MOID = 1.70298 au 
 T_jup = 3.079 
[ 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 13.7   n/a MPO385285  
diameter diameter 11.646 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74517 (1999 FU31)          Discovered 1999-Mar-19 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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