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(2015 HL171)
Classification: Apollo [NEO]          SPK-ID: 3718432
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457141.5 (2015-Apr-29.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2564032079502649 0.00066057  
a 1.290890410002813 0.0011654 au
q .9599019677658589 1.3873e-05 au
i 27.22873764841156 0.034196 deg
node 39.96169850521409 0.0012307 deg
peri 226.3056341524818 0.046949 deg
M 330.4461082887074 0.074675 deg
tp 2457185.478930670589
(2015-Jun-11.97893067)
0.051569 TDB
period 535.7133739297848
1.47
0.72543
0.001986
d
yr
n .6720011437444247 0.00090999 deg/d
Q 1.621878852239767 0.0014642 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      5 days  
   first obs. used      2015-04-28  
   last obs. used      2015-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .32351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-11 07:34:36  

Additional Information
 Earth MOID = .0161481 au 
 Jupiter MOID = 3.4766 au 
 T_jup = 4.887 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 4.36353495668256E-7 9.142692284032373E-9 -3.406451393403779E-5 -8.127972850891349E-7 -3.101226551831224E-5 2.258737854402373E-5
q 9.142692284032373E-9 1.924464048379522E-10 -7.139549320642838E-7 -1.704250479899771E-8 -6.500618019591742E-7 4.734451136040316E-7
tp -3.406451393403779E-5 -7.139549320642838E-7 .00265934972259551 6.345404709315031E-5 .002421086994550718 -.001763340636351447
node -8.127972850891349E-7 -1.704250479899771E-8 6.345404709315031E-5 1.514521791980462E-6 5.776926033378197E-5 -4.208144871744675E-5
peri -3.101226551831224E-5 -6.500618019591742E-7 .002421086994550718 5.776926033378197E-5 .002204178484637253 -.001605353910598155
i 2.258737854402373E-5 4.734451136040316E-7 -.001763340636351447 -4.208144871744675E-5 -.001605353910598155 .001169334105475074

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 24.2   n/a MPO346332  

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