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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627805722509512 6.6595e-08  
a 2.565296972092667 2.4919e-08 AU
q 2.14771646298179 1.6449e-07 AU
i 8.364570491138517 6.8395e-06 deg
node 90.94515011211539 5.9984e-05 deg
peri 196.8043728175584 6.5652e-05 deg
M 229.774084420314 3.0104e-05 deg
tp 2457543.374970069070
(2016-Jun-03.87497007)
0.00012793 JED
period 1500.738070106157
4.11
2.1867e-05
5.987e-08
d
yr
n .239881966860836 3.4953e-09 deg/d
Q 2.982877481203543 2.8976e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      729  
   data-arc span      7384 days (20.22 yr)  
   first obs. used      1993-12-16  
   last obs. used      2014-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53646  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 21:40:59  

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 13.9 mag n/a MPO250379  

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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