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66342 (1999 JA68)
Classification: Main-belt Asteroid          SPK-ID: 2066342
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1880688257690888 3.6743e-08  
a 2.302722617713257 1.1226e-08 au
q 1.869652278928002 8.4221e-08 au
i 8.168233917763446 4.273e-06 deg
node 73.74983222839543 3.4689e-05 deg
peri 190.7031026840209 3.7432e-05 deg
M 336.5906135285815 1.7437e-05 deg
tp 2459083.494325112149
(2020-Aug-21.99432511)
6.2192e-05 TDB
period 1276.323797586619
3.49
9.3334e-06
2.555e-08
d
yr
n .2820600859129308 2.0626e-09 deg/d
Q 2.735792956498511 1.3337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      668  
   data-arc span      7203 days (19.72 yr)  
   first obs. used      1999-04-12  
   last obs. used      2018-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5597  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:29:05  

Additional Information
 Earth MOID = .854699 au 
 Jupiter MOID = 2.34243 au 
 T_jup = 3.553 
[ 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 15.9   n/a MPO468589  
diameter diameter 2.388 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.123   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66342 (1999 JA68)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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