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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1911125082316782 1.102e-07  
a 2.400232027224225 2.711e-08 AU
q 1.941517664163397 2.7251e-07 AU
i 2.357364558817974 1.4799e-05 deg
node .6970256315809936 0.00018841 deg
peri 39.07235014498045 0.00019263 deg
M 15.41627451024137 4.1952e-05 deg
tp 2456942.335874786212
(2014-Oct-11.83587479)
0.00015769 JED
period 1358.245473836985
3.72
2.3012e-05
6.3e-08
d
yr
n .2650478186266401 4.4905e-09 deg/d
Q 2.858946390285052 3.2291e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      6432 days (17.61 yr)  
   first obs. used      1997-02-13  
   last obs. used      2014-09-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62102  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 18:44:19  

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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