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(2015 XA378)
Classification: Apollo [NEO]          SPK-ID: 3736778
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6393008601403314 1.2694e-05  
a 1.831181480179987 5.1745e-05 au
q .660505584827876 4.6879e-06 au
i .2259980323529193 2.0307e-05 deg
node 74.64197229115132 0.00049773 deg
peri 91.96304143266505 0.00052006 deg
M 267.6827318848413 0.026532 deg
tp 2459232.600433408492
(2021-Jan-18.10043341)
0.076543 TDB
period 905.0977973354574
2.48
0.038364
0.000105
d
yr
n .3977470733657888 1.6859e-05 deg/d
Q 3.001857375532098 8.4826e-05 au
  Orbit Determination Parameters
   # obs. used (total)      49  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      12 days  
   first obs. used      2015-12-06  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .44242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-11 07:35:41  

Additional Information
 Earth MOID = .000245347 au 
 Jupiter MOID = 1.97617 au 
 T_jup = 3.754 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457367.5 (2015-Dec-11.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6392756926258474 1.2671e-05  
q .6597825279624255 4.5801e-06 au
tp 2457422.267882591672
(2016-Feb-03.76788259)
0.00036415 TDB
node 74.53969498054468 0.00050694 deg
peri 92.1447939172685 0.00052884 deg
i .2269056247520504 2.0338e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      49  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      12 days  
   first obs. used      2015-12-06  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .44242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-11 07:35:41  

Additional Information
 Jupiter MOID = 1.97617 au 
 T_jup = 3.754 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.605416296186921E-10 -5.691634110788441E-11 -4.57877271665926E-9 -2.557276885985031E-10 9.763218205264229E-10 6.085335451977337E-11
q -5.691634110788441E-11 2.097690341795627E-11 1.584010841162043E-9 8.640376765264401E-11 -4.631573948121857E-10 -2.283190298340869E-11
tp -4.57877271665926E-9 1.584010841162043E-9 1.326033380082601E-7 7.508419364955755E-9 -2.203756128035664E-8 -1.668528647916618E-9
node -2.557276885985031E-10 8.640376765264401E-11 7.508419364955755E-9 2.569873151035503E-7 -2.574823960476296E-7 8.316861859679248E-9
peri 9.763218205264229E-10 -4.631573948121857E-10 -2.203756128035664E-8 -2.574823960476296E-7 2.796733014555892E-7 -7.849280111283934E-9
i 6.085335451977337E-11 -2.283190298340869E-11 -1.668528647916618E-9 8.316861859679248E-9 -7.849280111283934E-9 4.136240959199986E-10

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 25.9   n/a MPO369302  

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