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9668 Tianyahaijiao (1997 LN)
Classification: Main-belt Asteroid          SPK-ID: 2009668
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06817682526673584 4.9487e-08  
a 2.791803064887896 1.4482e-08 au
q 2.601466795153896 1.355e-07 au
i 6.146150221966253 5.1603e-06 deg
node 164.531903933777 3.5763e-05 deg
peri 209.4721764366961 4.7206e-05 deg
M 120.7145756951983 2.9432e-05 deg
tp 2458029.175553128085
(2017-Oct-02.67555313)
0.00013968 TDB
period 1703.827393580201
4.66
1.3257e-05
3.63e-08
d
yr
n .2112890081216167 1.644e-09 deg/d
Q 2.982139334621896 1.5469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1862  
   data-arc span      14531 days (39.78 yr)  
   first obs. used      1979-07-26  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46845  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:44:18  

Additional Information
 Earth MOID = 1.60228 au 
 Jupiter MOID = 2.35522 au 
 T_jup = 3.317 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO384843  
diameter diameter 4.268 km 0.409 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.244   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9668 Tianyahaijiao           Discovered 1997 June 3 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
"Tianya Haijiao", which literally means "edge of the sky, rim of the sea", is the name of a famous rocky outcrop of historical significance on the south coast of Hainan Island just to the west of Sanya, the southernmost city in China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13

Alternate Designations
 1997 LN = 1979 OB12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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