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173229 (1998 WH15)
Classification: Main-belt Asteroid          SPK-ID: 2173229
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497534244279975 5.4703e-08  
a 2.632105563276163 1.538e-08 au
q 2.237938741719574 1.4876e-07 au
i 12.80280085027485 6.2604e-06 deg
node 221.9176481948201 1.8306e-05 deg
peri 194.2364507460138 2.5448e-05 deg
M 15.25106765650395 1.6405e-05 deg
tp 2458934.422876553565
(2020-Mar-25.92287655)
7.0921e-05 TDB
period 1559.744207847132
4.27
1.3671e-05
3.743e-08
d
yr
n .2308070760505642 2.023e-09 deg/d
Q 3.026272384832751 1.7683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      7738 days (21.19 yr)  
   first obs. used      1998-11-11  
   last obs. used      2020-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52494  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:01:01  

Additional Information
 Earth MOID = 1.2511 au 
 Jupiter MOID = 2.35407 au 
 T_jup = 3.348 
[ 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 16.0   n/a MPO454189  

173229 (1998 WH15)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 1998 WH15 = 2002 TT95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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