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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627805739765942 6.4197e-08  
a 2.565296973407372 2.2499e-08 AU
q 2.147716459655701 1.604e-07 AU
i 8.364570508947901 6.6141e-06 deg
node 90.94514601232035 5.8064e-05 deg
peri 196.8043758480149 6.3654e-05 deg
M 229.7740848048045 3.0093e-05 deg
tp 2457543.374968883570
(2016-Jun-03.87496888)
0.00012792 JED
period 1500.738071259841
4.11
1.9743e-05
5.405e-08
d
yr
n .239881966676428 3.1558e-09 deg/d
Q 2.982877487159044 2.6161e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      750  
   data-arc span      7663 days (20.98 yr)  
   first obs. used      1993-12-16  
   last obs. used      2014-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55029  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:33:09  

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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