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175819 (1999 TN18)
Classification: Main-belt Asteroid          SPK-ID: 2175819
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1911124348423291 1.1494e-07  
a 2.400232050368601 2.9004e-08 AU
q 1.941517859036061 2.8597e-07 AU
i 2.357358713119735 1.5045e-05 deg
node .6970865410422463 0.00019087 deg
peri 39.07232390896299 0.00019556 deg
M 15.41623275861505 4.596e-05 deg
tp 2456942.336031469819
(2014-Oct-11.83603147)
0.00017271 JED
period 1358.245493482426
3.72
2.4619e-05
6.74e-08
d
yr
n .2650478147930317 4.8042e-09 deg/d
Q 2.85894624170114 3.4547e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      5981 days (16.38 yr)  
   first obs. used      1997-02-13  
   last obs. used      2013-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60494  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 13:42:09  

Additional Information
 Earth MOID = .949729 AU 
 T_jup = 3.500 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0 mag n/a MPO266545  

175819 (1999 TN18)          Discovered 1999-Oct-14 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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