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91334 (1999 JK8)
Classification: Main-belt Asteroid          SPK-ID: 2091334
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3506742602105924 4.3947e-08  
a 2.638332996332563 1.709e-08 au
q 1.713137524654446 1.1942e-07 au
i 27.52635922849059 9.0301e-06 deg
node 217.2117294328002 1.1092e-05 deg
peri 84.92515949495075 1.6638e-05 deg
M 300.1947970964235 1.3771e-05 deg
tp 2459260.533503736177
(2021-Feb-15.03350374)
6.1616e-05 TDB
period 1565.282898478814
4.29
1.5209e-05
4.164e-08
d
yr
n .229990374487486 2.2347e-09 deg/d
Q 3.56352846801068 2.3083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      7656 days (20.96 yr)  
   first obs. used      1999-05-12  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55384  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:39:43  

Additional Information
 Earth MOID = .918457 au 
 Jupiter MOID = 2.29331 au 
 T_jup = 3.155 
[ 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 15.3   n/a MPO432451  
diameter diameter 2.478 km 0.575 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.199   0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

91334 (1999 JK8)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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