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173286 (1999 TT118)
Classification: Main-belt Asteroid          SPK-ID: 2173286
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2503640085351898 7.7918e-08  
a 2.34742982343501 9.3322e-09 au
q 1.759717883084768 1.8173e-07 au
i 4.764368556807946 9.1496e-06 deg
node 355.4432140482464 6.2335e-05 deg
peri 355.9979314340044 6.3395e-05 deg
M 279.7084861764203 1.1285e-05 deg
tp 2459293.491147802138
(2021-Mar-19.99114780)
4.1897e-05 TDB
period 1313.673241241012
3.60
7.8338e-06
2.145e-08
d
yr
n .2740407497833419 1.6342e-09 deg/d
Q 2.935141763785252 1.1669e-08 au
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      9159 days (25.08 yr)  
   first obs. used      1994-03-10  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:01:46  

Additional Information
 Earth MOID = .754171 au 
 Jupiter MOID = 2.50026 au 
 T_jup = 3.513 
[ 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 17.0   n/a MPO433113  
diameter diameter 2.719 km 0.494 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.046   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

173286 (1999 TT118)          Discovered 1999-Oct-04 by LINEAR at Socorro
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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