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66278 (1999 JC11)
Classification: Main-belt Asteroid          SPK-ID: 2066278
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2039011518675373 4.3336e-08  
a 2.402401040588638 1.0029e-08 au
q 1.912548701164844 1.0331e-07 au
i 3.14740531340727 4.9978e-06 deg
node 134.5548978235077 7.5422e-05 deg
peri 179.1621037165877 7.6078e-05 deg
M 179.545107127367 1.0422e-05 deg
tp 2458322.175096819824
(2018-Jul-22.67509682)
3.8379e-05 TDB
period 1360.086994582555
3.72
8.517e-06
2.332e-08
d
yr
n .264688951099406 1.6575e-09 deg/d
Q 2.892253380012431 1.2074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      7574 days (20.74 yr)  
   first obs. used      1999-05-09  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52737  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:54:16  

Additional Information
 Earth MOID = .898599 au 
 Jupiter MOID = 2.3934 au 
 T_jup = 3.494 
[ 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 15.6   n/a MPO453058  
diameter diameter 1.878 km 0.455 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.240   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66278 (1999 JC11)          Discovered 1999-May-09 by Korlevic, K. at Visnjan
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JC11 = 2000 WN144 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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