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442786 (2012 XN144)
Classification: Main-belt Asteroid          SPK-ID: 2442786
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1785804476407548 1.8343e-07  
a 2.631682690018593 7.1579e-08 au
q 2.161715617186647 5.221e-07 au
i 32.04197621316073 1.4133e-05 deg
node 310.1334596090028 1.2788e-05 deg
peri 139.6202903655685 3.8917e-05 deg
M 275.6125880280772 2.797e-05 deg
tp 2459366.030718336408
(2021-May-31.53071834)
0.00012711 TDB
period 1559.368340919017
4.27
6.3619e-05
1.742e-07
d
yr
n .2308627093120496 9.4188e-09 deg/d
Q 3.101649762850539 8.4361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      2938 days (8.04 yr)  
   first obs. used      2009-02-01  
   last obs. used      2017-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45854  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:25:17  

Additional Information
 Earth MOID = 1.2267 au 
 Jupiter MOID = 2.11793 au 
 T_jup = 3.163 
[ 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 MPO386694  

442786 (2012 XN144)          Discovered 2009-Feb-01 by CSS at Catalina
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 XN144 = 2011 OC39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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