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(2016 HP3)
Classification: Apollo [NEO]          SPK-ID: 3752446
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5902330452746394 0.00011135  
a 2.436379303946809 0.00065306 au
q .9983477279341778 3.6941e-06 au
i 2.937428540831661 0.00048144 deg
node 190.2777403570545 0.00050751 deg
peri 77.6673770634941 0.0001952 deg
M 66.76630880446469 0.17257 deg
tp 2458942.885297423738
(2020-Apr-03.38529742)
0.56226 TDB
period 1389.043285275234
3.80
0.55849
0.001529
d
yr
n .2591711891315663 0.0001042 deg/d
Q 3.874410879959441 0.0010385 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      30 days  
   first obs. used      2016-04-28  
   last obs. used      2016-05-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .58762  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 17:03:59  

Additional Information
 Earth MOID = .0444324 au 
 Jupiter MOID = 1.26497 au 
 T_jup = 3.239 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457515.5 (2016-May-07.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5900723546261448 0.00011115  
q 1.000147129290227 1.5907e-06 au
tp 2457552.772974309975
(2016-Jun-13.27297431)
0.00038132 TDB
node 190.5719877853534 0.00041002 deg
peri 77.32462108502949 0.00016479 deg
i 2.945648091519679 0.00047619 deg
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      30 days  
   first obs. used      2016-04-28  
   last obs. used      2016-05-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .58762  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 17:03:59  

Additional Information
 Jupiter MOID = 1.26497 au 
 T_jup = 3.239 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.235383778134869E-8 -1.762754126998822E-10 -4.230243041605761E-8 4.252800027727517E-8 3.619518983293017E-9 5.291564860001584E-8
q -1.762754126998822E-10 2.530422983026959E-12 6.009800643727136E-10 -5.984450381326758E-10 -6.353190648036413E-11 -7.544209163969578E-10
tp -4.230243041605761E-8 6.009800643727136E-10 1.454047379533413E-7 -1.469209465049506E-7 -1.039315190896383E-8 -1.812766053256178E-7
node 4.252800027727517E-8 -5.984450381326758E-10 -1.469209465049506E-7 1.681172116117226E-7 -1.0989178988656E-8 1.83578686037377E-7
peri 3.619518983293017E-9 -6.353190648036413E-11 -1.039315190896383E-8 -1.0989178988656E-8 2.715702908582935E-8 1.397272032993019E-8
i 5.291564860001584E-8 -7.544209163969578E-10 -1.812766053256178E-7 1.83578686037377E-7 1.397272032993019E-8 2.267581387108301E-7

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 23.7   n/a MPO382820  
rotation period rot_per 2. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Moskovitz, N.A.; Binzel, R.P.; Christensen, E.J.; et al. (2018) Astrophys. J. Supp. Series 2391, A4.]

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