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442777 (2012 XE120)
Classification: Main-belt Asteroid          SPK-ID: 2442777
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 .0951854328767115 6.5045e-08  
a 2.764354673243445 5.4095e-08 au
q 2.501228377046008 1.837e-07 au
i 9.694483756957183 8.12e-06 deg
node 89.47609389759245 4.2673e-05 deg
peri 73.12138037844832 5.9951e-05 deg
M 176.311893753775 4.5004e-05 deg
tp 2458178.317589826376
(2018-Feb-28.81758983)
0.00020065 TDB
period 1678.761774720983
4.60
4.9277e-05
1.349e-07
d
yr
n .2144437676750375 6.2946e-09 deg/d
Q 3.027480969440882 5.9244e-08 au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      5123 days (14.03 yr)  
   first obs. used      2004-02-16  
   last obs. used      2018-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .71008  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-06 02:09:47  

Additional Information
 Earth MOID = 1.53101 au 
 Jupiter MOID = 2.02655 au 
 T_jup = 3.313 
[ 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 17.1   n/a MPO437722  

442777 (2012 XE120)          Discovered 2012-Dec-08 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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