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JPL Small-Body Database Browser
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(2015 XG55)
Classification: Apollo [NEO]          SPK-ID: 3736000
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5578543148222568 0.0007336  
a 1.029592369187398 0.00059066 au
q .4552298235281382 0.00049419 au
i 2.364475649026114 0.0044636 deg
node 70.30294356424716 0.00010141 deg
peri 237.4609655644539 0.0072061 deg
M 164.555270338215 1.4463 deg
tp 2458826.076219541526
(2019-Dec-08.57621954)
1.383 TDB
period 381.589485623836
1.04
0.32837
0.000899
d
yr
n .9434222209017611 0.00081184 deg/d
Q 1.603954914846659 0.00092016 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      3 days  
   first obs. used      2015-12-03  
   last obs. used      2015-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .7181  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-17 06:10:57  

Additional Information
 Earth MOID = .00161725 au 
 Jupiter MOID = 3.67361 au 
 T_jup = 5.792 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457361.5 (2015-Dec-05.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5579233905850618 0.00073365  
q .4551929775077925 0.00048824 au
tp 2457299.574250985959
(2015-Oct-04.07425099)
0.047011 TDB
node 70.3116758804521 0.00021294 deg
peri 237.4646428076954 0.006868 deg
i 2.365100045337019 0.0044725 deg
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      3 days  
   first obs. used      2015-12-03  
   last obs. used      2015-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .7181  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-17 06:10:57  

Additional Information
 Jupiter MOID = 3.67361 au 
 T_jup = 5.792 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.382387539527649E-7 -3.581860097019495E-7 3.448859412832608E-5 1.544062110032997E-7 -5.006335228370994E-6 3.28079402702284E-6
q -3.581860097019495E-7 2.383780001044267E-7 -2.29504419742075E-5 -1.027209472399497E-7 3.334416578821326E-6 -2.183469516687553E-6
tp 3.448859412832608E-5 -2.29504419742075E-5 .002209988290832626 9.896378229112934E-6 -.0003205839018473977 .0002102095608490103
node 1.544062110032997E-7 -1.027209472399497E-7 9.896378229112934E-6 4.53445552596205E-8 -1.429979633710347E-6 9.420752583093566E-7
peri -5.006335228370994E-6 3.334416578821326E-6 -.0003205839018473977 -1.429979633710347E-6 4.716956851368607E-5 -3.055461258531976E-5
i 3.28079402702284E-6 -2.183469516687553E-6 .0002102095608490103 9.420752583093566E-7 -3.055461258531976E-5 2.00035479576201E-5

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 27.7   n/a MPO358532  

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