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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .350782734043347 4.2503e-08  
a 2.638579522067579 1.7058e-08 au
q 1.713011383325926 1.1577e-07 au
i 27.52677995672479 8.7813e-06 deg
node 217.1980629016677 1.0685e-05 deg
peri 84.91137273981511 1.6191e-05 deg
M 31.28148704920059 1.4105e-05 deg
tp 2459260.468778550928
(2021-Feb-14.96877855)
6.0392e-05 TDB
period 1565.502293565596
4.29
1.5181e-05
4.156e-08
d
yr
n .2299581428143821 2.2299e-09 deg/d
Q 3.564147660809232 2.3041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      8073 days (22.10 yr)  
   first obs. used      1999-05-12  
   last obs. used      2021-06-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54524  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:40:48  

Additional Information
 Earth MOID = .918247 au 
 Jupiter MOID = 2.29079 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 15.27   n/a E2021B10  
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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