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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09453526019389671 3.8098e-08  
a 2.298152703929204 8.9138e-09 au
q 2.080896240097949 9.0248e-08 au
i 9.346107214421544 3.9321e-06 deg
node 229.9637519893494 2.6844e-05 deg
peri 346.8270114199013 3.5446e-05 deg
M 29.647410687156 2.4598e-05 deg
tp 2458895.702476595278
(2020-Feb-16.20247660)
8.6711e-05 TDB
period 1272.52625275786
3.48
7.4036e-06
2.027e-08
d
yr
n .2829018255771119 1.6459e-09 deg/d
Q 2.515409167760458 9.7565e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1071  
   data-arc span      7255 days (19.86 yr)  
   first obs. used      1999-05-07  
   last obs. used      2019-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55869  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:49:28  

Additional Information
 Earth MOID = 1.07394 au 
 Jupiter MOID = 2.46569 au 
 T_jup = 3.570 
[ 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 15.2   n/a MPO468588  
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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