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173789 (2001 SM98)
Classification: Main-belt Asteroid          SPK-ID: 2173789
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 .2044004312158533 5.2725e-08  
a 2.779449101947358 3.0462e-08 au
q 2.211328506966802 1.5202e-07 au
i 7.167722382627515 8.5691e-06 deg
node 325.4928364927713 5.9799e-05 deg
peri 323.8837368392547 6.3915e-05 deg
M 63.94555284038167 2.642e-05 deg
tp 2458699.861662750692
(2019-Aug-04.36166275)
0.00012173 TDB
period 1692.5305451641
4.63
2.7824e-05
7.618e-08
d
yr
n .2126992632591432 3.4967e-09 deg/d
Q 3.347569696927914 3.6688e-08 au
  Orbit Determination Parameters
   # obs. used (total)      329  
   data-arc span      6051 days (16.57 yr)  
   first obs. used      2001-08-27  
   last obs. used      2018-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59812  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 07:09:38  

Additional Information
 Earth MOID = 1.19995 au 
 Jupiter MOID = 1.88265 au 
 T_jup = 3.292 
[ 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 15.6   n/a MPO439994  
diameter diameter 4.176 km 0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173789 (2001 SM98)          Discovered 2001-Sep-20 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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