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16854 (1997 YL3)
Classification: Main-belt Asteroid          SPK-ID: 2016854
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630267005617514 5.9165e-08  
a 2.563581784228271 1.8032e-08 au
q 2.145649504325329 1.5146e-07 au
i 8.363006032028236 5.7562e-06 deg
node 90.90891236252142 5.6714e-05 deg
peri 197.142955074201 6.2343e-05 deg
M 13.5151792208169 3.0445e-05 deg
tp 2457544.215540393941
(2016-Jun-04.71554039)
0.00012657 JED
period 1499.233204911693
4.10
1.5819e-05
4.331e-08
d
yr
n .2401227499635085 2.5336e-09 deg/d
Q 2.981514064131214 2.0972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      7872 days (21.55 yr)  
   first obs. used      1993-12-16  
   last obs. used      2015-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54414  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:46:36  

Additional Information
 Earth MOID = 1.13055 au 
 Jupiter MOID = 2.17329 au 
 T_jup = 3.400 
[ 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 14.0 mag n/a MPO319296  

16854 (1997 YL3)          Discovered 1997-Dec-20 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 YL3 = 1999 GC21 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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