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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162780524919059 5.9748e-08  
a 2.565296945712745 1.8883e-08 AU
q 2.147716562316365 1.5232e-07 AU
i 8.364571267818585 5.8774e-06 deg
node 90.94514930743861 5.6791e-05 deg
peri 196.8043832736154 6.2417e-05 deg
M 229.7740874025033 2.9999e-05 deg
tp 2457543.374949263284
(2016-Jun-03.87494926)
0.00012727 JED
period 1500.738046957168
4.11
1.657e-05
4.537e-08
d
yr
n .239881970561032 2.6486e-09 deg/d
Q 2.982877329109124 2.1956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      885  
   data-arc span      7835 days (21.45 yr)  
   first obs. used      1993-12-16  
   last obs. used      2015-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54332  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:27:31  

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
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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