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385123 (2012 XW120)
Classification: Main-belt Asteroid          SPK-ID: 2385123
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05873868026500974 5.3826e-08  
a 2.445684779815104 1.9584e-08 au
q 2.302028483504544 1.2908e-07 au
i 6.740410200945072 7.1806e-06 deg
node 176.610527509181 3.5121e-05 deg
peri 119.6634682472551 7.0677e-05 deg
M 165.1817891355844 5.8716e-05 deg
tp 2458559.498843436291
(2019-Mar-16.99884344)
0.00022774 TDB
period 1397.008820224866
3.82
1.678e-05
4.594e-08
d
yr
n .2576934338482226 3.0953e-09 deg/d
Q 2.589341076125665 2.0735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      9425 days (25.80 yr)  
   first obs. used      1995-03-30  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53665  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:04:13  

Additional Information
 Earth MOID = 1.29347 au 
 Jupiter MOID = 2.51474 au 
 T_jup = 3.487 
[ 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 16.83   n/a MPCxxxxx  

385123 (2012 XW120)          Discovered 2008-Oct-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-01-21

[ show close-approach data ]
Alternate Designations
 2012 XW120 = 2008 UV304 = 2010 EE45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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