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17549 (1993 TW12)
Classification: Main-belt Asteroid          SPK-ID: 2017549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .116338512786355 3.2885e-08  
a 2.314587519234775 9.0541e-09 au
q 2.045311849533142 7.6223e-08 au
i 6.805639793932377 4.3259e-06 deg
node 48.03078105888618 3.6362e-05 deg
peri 17.57150928924 4.2174e-05 deg
M 165.8836421134009 2.1825e-05 deg
tp 2458407.834156561235
(2018-Oct-16.33415656)
7.729e-05 TDB
period 1286.200983530968
3.52
7.547e-06
2.066e-08
d
yr
n .2798940481383424 1.6423e-09 deg/d
Q 2.583863188936408 1.0107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1254  
   data-arc span      14773 days (40.45 yr)  
   first obs. used      1979-11-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:37:34  

Additional Information
 Earth MOID = 1.05965 au 
 Jupiter MOID = 2.6924 au 
 T_jup = 3.564 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO473999  
diameter diameter 3.374 km 0.326 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17549 (1993 TW12)          Discovered 1993-Oct-13 by Holt, H. E. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 TW12 = 1979 WY5 = 1999 KV11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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