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(2012 XB112)
Classification: Apollo [NEO]          SPK-ID: 3620672
[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446615055262604 2.516e-06  
a 1.028872314960127 1.0697e-06 au
q .8800340968837063 3.411e-06 au
i 1.321876786608176 9.5628e-05 deg
node 76.8715915448122 0.00036669 deg
peri 88.82472915387054 0.0010541 deg
M 350.9179425558536 0.0023998 deg
tp 2459010.116618611803
(2020-Jun-09.61661861)		 0.002556 TDB
period 381.1892538160956
1.04		 0.0005945
1.628e-06		 d
yr
n .9444127723854504 1.4729e-06 deg/d
Q 1.177710533036548 1.2245e-06 au
   Orbit Determination Parameters
   # obs. used (total)      78  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      3 days  
   first obs. used      2012-12-11  
   last obs. used      2012-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .36632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-02 08:58:57  

Additional Information
 Earth MOID = .000795535 au 
 Jupiter MOID = 3.78811 au 
 T_jup = 5.937 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456274.5 (2012-Dec-13.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454373315523538 2.4453e-06  
q .8793577657756836 1.7756e-06 au
tp 2456344.856373778205
(2013-Feb-21.35637378)		 0.00011388 TDB
node 79.94111516412089 9.7705e-06 deg
peri 83.94718538827614 0.00013563 deg
i 2.376200782289041 5.2269e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      78  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      3 days  
   first obs. used      2012-12-11  
   last obs. used      2012-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .36632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-02 08:58:57  

Additional Information
 Jupiter MOID = 3.78811 au 
 T_jup = 5.937 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.979610223032488E-12 -4.312113111893727E-12 -2.265112429367731E-10 9.395115028573966E-12 2.390970622274034E-10 1.17268571933341E-10
q -4.312113111893727E-12 3.152632718579317E-12 1.496485672043467E-10 -6.463397769523559E-12 -1.91821653995881E-10 -8.243247188050767E-11
tp -2.265112429367731E-10 1.496485672043467E-10 1.296967441321046E-8 -4.448932675833204E-10 -2.861257406505677E-9 -5.052211251752525E-9
node 9.395115028573966E-12 -6.463397769523559E-12 -4.448932675833204E-10 9.546295775761198E-11 1.672448236605764E-10 3.158570488813052E-10
peri 2.390970622274034E-10 -1.91821653995881E-10 -2.861257406505677E-9 1.672448236605764E-10 1.839684157773904E-8 3.681808165384083E-9
i 1.17268571933341E-10 -8.243247188050767E-11 -5.052211251752525E-9 3.158570488813052E-10 3.681808165384083E-9 2.732037418024955E-9

[ 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 29.9   n/a MPO247345  
diameter diameter 0.0025 km 0.0005 n/a Based on Goldstone echo band-width of 3-4 Hz and light-curve rotational period of 2.6 minutes from light-curves.
rotation period rot_per 0.043333 h n/a n/a 2.6 minute rotation period from lightcurves by Bill Ryan

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