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66298 (1999 JJ30)
Classification: Main-belt Asteroid          SPK-ID: 2066298
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09490419992204695 3.1859e-08  
a 2.298695459794582 6.4827e-09 au
q 2.080539606318336 7.2783e-08 au
i 9.343340627861497 3.5513e-06 deg
node 229.9336290994024 2.0378e-05 deg
peri 346.8994317660118 2.8286e-05 deg
M 86.14185785580999 1.8601e-05 deg
tp 2458895.898303882513
(2020-Feb-16.39830388)
6.5903e-05 TDB
period 1272.977079108812
3.49
5.385e-06
1.474e-08
d
yr
n .2828016355581434 1.1963e-09 deg/d
Q 2.516851313270829 7.098e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1314  
   data-arc span      7798 days (21.35 yr)  
   first obs. used      1999-05-07  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52646  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:20:59  

Additional Information
 Earth MOID = 1.07245 au 
 Jupiter MOID = 2.46311 au 
 T_jup = 3.569 
[ 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 15.22   n/a MPCxxxxx  
diameter diameter 3.576 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66298 (1999 JJ30)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JJ30 = 2000 ST167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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