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152806 (1999 TW185)
Classification: Main-belt Asteroid          SPK-ID: 2152806
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2438974747845884 8.8101e-08  
a 3.176550085203039 3.4296e-08 au
q 2.401797540895249 2.7795e-07 au
i 24.95800417887079 1.0212e-05 deg
node 357.5979436761372 1.6685e-05 deg
peri 55.99429989997987 3.3336e-05 deg
M 256.1027640246267 2.2102e-05 deg
tp 2459797.306412793638
(2022-Aug-05.80641279)		 0.00013122 TDB
period 2067.911687820411
5.66		 3.3489e-05
9.169e-08		 d
yr
n .1740886722195771 2.8193e-09 deg/d
Q 3.951302629510829 4.266e-08 au
   Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      7199 days (19.71 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51125  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:45  

Additional Information
 Earth MOID = 1.48707 au 
 Jupiter MOID = 1.89512 au 
 T_jup = 3.012 
[ 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 15.2   n/a MPO224069  
diameter diameter 6.184 km 0.434 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

152806 (1999 TW185)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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