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JPL Small-Body Database Browser
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173289 (1999 TC157)
Classification: Main-belt Asteroid          SPK-ID: 2173289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0830407351599969 5.8528e-08  
a 2.560449021192716 2.0195e-08 au
q 2.347827452133179 1.5298e-07 au
i 10.82643538462413 7.0593e-06 deg
node 359.516646211726 3.3758e-05 deg
peri 18.16007149261024 5.6415e-05 deg
M 270.6233467527786 4.8709e-05 deg
tp 2458972.030279660908
(2020-May-02.53027966)
0.00020471 TDB
period 1496.485892215761
4.10
1.7705e-05
4.847e-08
d
yr
n .2405635775603395 2.8461e-09 deg/d
Q 2.773070590252254 2.1872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7327 days (20.06 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:46:04  

Additional Information
 Earth MOID = 1.34955 au 
 Jupiter MOID = 2.60466 au 
 T_jup = 3.405 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO449898  

173289 (1999 TC157)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1999 TC157 = 1999 TM181 = 2003 QN50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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