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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1911123880388148 8.6976e-08  
a 2.400232062151904 1.819e-08 AU
q 1.941517980906724 2.0578e-07 AU
i 2.357359555057311 8.924e-06 deg
node .697085002931655 0.00016886 deg
peri 39.07234420063376 0.00017068 deg
M 15.41621048458594 2.0059e-05 deg
tp 2456942.336115079286
(2014-Oct-11.83611508)
7.5778e-05 JED
period 1358.245503484345
3.72
1.544e-05
4.227e-08
d
yr
n .2650478128412588 3.013e-09 deg/d
Q 2.858946143397083 2.1666e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      6553 days (17.94 yr)  
   first obs. used      1997-02-13  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59541  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 18:42:17  

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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