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390175 (2012 WT2)
Classification: Main-belt Asteroid          SPK-ID: 2390175
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1372766738402671 4.4262e-08  
a 2.27623919486013 2.1241e-08 au
q 1.963764649324883 1.1027e-07 au
i 3.947924747631485 5.2357e-06 deg
node 209.6762274691623 6.8547e-05 deg
peri 96.75571491494624 7.3744e-05 deg
M 162.8240274724939 2.2585e-05 deg
tp 2458433.162794933773
(2018-Nov-10.66279493)
7.8678e-05 TDB
period 1254.368885196287
3.43
1.7558e-05
4.807e-08
d
yr
n .286996914742242 4.0173e-09 deg/d
Q 2.588713740395376 2.4157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      5729 days (15.69 yr)  
   first obs. used      2004-04-13  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5327  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:43:10  

Additional Information
 Earth MOID = .953718 au 
 Jupiter MOID = 2.63057 au 
 T_jup = 3.593 
[ 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 18.0   n/a MPO434436  

390175 (2012 WT2)          Discovered 2005-Sep-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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