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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627805520033991 6.228e-08  
a 2.565296961516071 2.09e-08 AU
q 2.147716506067843 1.5697e-07 AU
i 8.364569773580982 6.3959e-06 deg
node 90.94515002377423 5.7463e-05 deg
peri 196.8043760701691 6.308e-05 deg
M 229.7740862788519 3.0073e-05 deg
tp 2457543.374958963981
(2016-Jun-03.87495896)
0.00012771 JED
period 1500.738060824951
4.11
1.834e-05
5.021e-08
d
yr
n .2398819683443686 2.9315e-09 deg/d
Q 2.9828774169643 2.4302e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      7714 days (21.12 yr)  
   first obs. used      1993-12-16  
   last obs. used      2015-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54788  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:47:20  

Additional Information
 Earth MOID = 1.13413 AU 
 T_jup = 3.399 
[ 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 (327)
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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