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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162780523840184 6.0474e-08  
a 2.565296945432271 1.9445e-08 AU
q 2.147716564849182 1.5363e-07 AU
i 8.364572544910546 6.0573e-06 deg
node 90.94514849237481 5.6811e-05 deg
peri 196.8043837954239 6.2445e-05 deg
M 229.7740877972874 3.0013e-05 deg
tp 2457543.374947528509
(2016-Jun-03.87494753)
0.00012737 JED
period 1500.738046711047
4.11
1.7063e-05
4.672e-08
d
yr
n .2398819706003727 2.7275e-09 deg/d
Q 2.98287732601536 2.261e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      864  
   data-arc span      7773 days (21.28 yr)  
   first obs. used      1993-12-16  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54233  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:56:40  

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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