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74550 (1999 JC82)
Classification: Outer Main-belt Asteroid          SPK-ID: 2074550
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07636783922021624 3.7446e-08  
a 3.251779270508687 2.3343e-08 au
q 3.003447913998847 1.1891e-07 au
i 13.58719989473005 4.0967e-06 deg
node 102.652996085915 1.7414e-05 deg
peri 251.1816193002597 3.3524e-05 deg
M 82.42757295468675 2.8314e-05 deg
tp 2458510.100492006572
(2019-Jan-26.60049201)
0.0001694 TDB
period 2141.805424438326
5.86
2.3063e-05
6.314e-08
d
yr
n .1680824952128448 1.8099e-09 deg/d
Q 3.500110627018527 2.5126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1340  
   data-arc span      7568 days (20.72 yr)  
   first obs. used      1999-05-12  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48749  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:18:40  

Additional Information
 Earth MOID = 2.03085 au 
 Jupiter MOID = 1.87787 au 
 T_jup = 3.132 
[ 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 13.5   n/a MPO324955  
diameter diameter 6.457 km 0.389 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.222   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74550 (1999 JC82)          Discovered 1999-May-12 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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