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66811 (1999 UA6)
Classification: Main-belt Asteroid          SPK-ID: 2066811
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598971149236018 1.0616e-07  
a 2.75937604241328 4.1118e-08 AU
q 2.31815977424209 2.6912e-07 AU
i 9.517486169891127 8.1837e-06 deg
node 188.4226437049224 4.0582e-05 deg
peri 156.2214178906107 4.9392e-05 deg
M 141.5253008149912 3.5554e-05 deg
tp 2456342.317476031368
(2013-Feb-18.81747603)
0.00015521 JED
period 1674.228616821347
4.58
3.7422e-05
1.025e-07
d
yr
n .21502439773338 4.8062e-09 deg/d
Q 3.20059231058447 4.7693e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      6149 days (16.84 yr)  
   first obs. used      1998-05-23  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58435  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 18:49:03  

Additional Information
 Earth MOID = 1.31536 AU 
 T_jup = 3.304 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO272941  

66811 (1999 UA6)          Discovered 1999-Oct-18 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UA6 = 2001 BV51 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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