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JPL Small-Body Database Browser
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(2012 XE54)
Classification: Apollo [NEO]          SPK-ID: 3619633
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5598712915497899 0.00022032  
a 1.909981522249519 0.00084254 au
q .8406377005514469 4.9992e-05 au
i 8.029527977166421 0.0027448 deg
node 259.1365116883659 0.0004991 deg
peri 234.0305121269805 0.00019491 deg
M 71.72678268543171 0.79604 deg
tp 2459204.402803963374
(2020-Dec-20.90280396)
2.0048 TDB
period 964.1446051815091
2.64
0.63796
0.001747
d
yr
n .3733879731995459 0.00024707 deg/d
Q 2.979325343947591 0.0013143 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      2 days  
   first obs. used      2012-12-09  
   last obs. used      2012-12-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .36757  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 07:19:28  

Additional Information
 Earth MOID = .000871066 au 
 Jupiter MOID = 2.14438 au 
 T_jup = 3.718 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.4   n/a MPO258433  
rotation period rot_per 0.0278190 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Birtwhistle, P. (2018) Minor Planet Bull. 45, 215-219.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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