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16854 (1997 YL3)
Classification: Main-belt Asteroid          SPK-ID: 2016854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1639805602338678 4.4919e-08  
a 2.563424786772736 9.8051e-09 au
q 2.14307295412036 1.1655e-07 au
i 8.362623984010783 4.3473e-06 deg
node 90.89414234925181 2.8529e-05 deg
peri 196.9477498413645 3.1373e-05 deg
M 37.89464866021491 1.1566e-05 deg
tp 2459042.700842549704
(2020-Jul-12.20084255)
4.835e-05 TDB
period 1499.095484206146
4.10
8.601e-06
2.355e-08
d
yr
n .2401448098488802 1.3778e-09 deg/d
Q 2.983776619425112 1.1413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1539  
   data-arc span      9832 days (26.92 yr)  
   first obs. used      1993-12-16  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53281  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:44:17  

Additional Information
 Earth MOID = 1.12627 au 
 Jupiter MOID = 2.17729 au 
 T_jup = 3.400 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.13   n/a E2021B10  
diameter diameter 4.072 km 1.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.203   0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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