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173854 (2001 TM157)
Classification: Main-belt Asteroid          SPK-ID: 2173854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06703516977985212 5.5205e-08  
a 2.908405067023547 3.1124e-08 au
q 2.713439639567041 1.675e-07 au
i 2.526819869859472 5.8503e-06 deg
node 158.9465259896081 0.00015143 deg
peri 191.5683695078349 0.00016204 deg
M 319.1472965390904 6.22e-05 deg
tp 2459206.088617746495
(2020-Dec-22.58861775)
0.00031449 TDB
period 1811.676978968044
4.96
2.9081e-05
7.962e-08
d
yr
n .1987109204230552 3.1897e-09 deg/d
Q 3.103370494480052 3.321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      6901 days (18.89 yr)  
   first obs. used      2000-07-05  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:10:46  

Additional Information
 Earth MOID = 1.70718 au 
 Jupiter MOID = 2.2011 au 
 T_jup = 3.280 
[ 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 16.2   n/a MPO436863  

173854 (2001 TM157)          Discovered 2001-Oct-14 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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