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390193 (2012 WM23)
Classification: Main-belt Asteroid          SPK-ID: 2390193
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05442187605488514 4.7283e-08  
a 2.653909825587322 2.5589e-08 au
q 2.509479073998367 1.3467e-07 au
i 3.681101907533515 5.1265e-06 deg
node 65.5262886887527 0.0001213 deg
peri 35.85314866871468 0.00014494 deg
M 231.6450267412139 8.1238e-05 deg
tp 2459563.538211801750
(2021-Dec-15.03821180)
0.00035976 TDB
period 1579.165583556811
4.32
2.284e-05
6.253e-08
d
yr
n .2279684940886055 3.2971e-09 deg/d
Q 2.798340577176277 2.6982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      7616 days (20.85 yr)  
   first obs. used      1999-12-14  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53329  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:43:01  

Additional Information
 Earth MOID = 1.52747 au 
 Jupiter MOID = 2.27303 au 
 T_jup = 3.384 
[ 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 16.7   n/a MPO440684  

390193 (2012 WM23)          Discovered 2007-Sep-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

Alternate Designations
 2012 WM23 = 2008 XP54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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