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(2015 HS11)
Classification: Apollo [NEO]          SPK-ID: 3717081
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1355676434583267 6.2985e-06  
a 1.163856973024462 8.406e-06 au
q 1.006075625868994 1.7727e-07 au
i 4.942293113068709 0.00038549 deg
node 212.9849780359033 0.00042665 deg
peri 37.03321811901974 0.00035519 deg
M 356.4880897352729 0.029421 deg
tp 2459004.973925582114
(2020-Jun-04.47392558)
0.037529 TDB
period 458.61456818465
1.26
0.0049686
1.36e-05
d
yr
n .7849728834934323 8.5043e-06 deg/d
Q 1.321638320179929 9.5456e-06 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      16 days  
   first obs. used      2015-04-21  
   last obs. used      2015-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .4822  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-10 07:06:43  

Additional Information
 Earth MOID = .0182249 au 
 Jupiter MOID = 3.68302 au 
 T_jup = 5.404 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457137.5 (2015-Apr-25.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363213970843999 1.1719e-05  
q 1.006714541925355 4.5542e-07 au
tp 2457171.861100937695
(2015-May-29.36110094)
0.00018243 TDB
node 213.4603149579652 6.8027e-06 deg
peri 35.99027464396006 0.00031507 deg
i 5.033724802254301 0.00033773 deg
  Orbit Determination Parameters
   # obs. used (total)      88  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      16 days  
   first obs. used      2015-04-21  
   last obs. used      2015-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .4822  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-10 07:06:43  

Additional Information
 Jupiter MOID = 3.68302 au 
 T_jup = 5.404 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.373254408225458E-10 -5.009069714840186E-12 1.455627490476558E-9 -1.567731247926725E-11 3.300105292361621E-9 3.954216345650716E-9
q -5.009069714840186E-12 2.074109963649814E-13 -7.361725208250508E-11 6.194360863576901E-13 -1.420916279694293E-10 -1.430465680803922E-10
tp 1.455627490476558E-9 -7.361725208250508E-11 3.327895993499823E-8 -2.199894215782872E-10 5.383618628274455E-8 4.112362307520558E-8
node -1.567731247926725E-11 6.194360863576901E-13 -2.199894215782872E-10 4.62761317501021E-11 -4.773102284457399E-10 -4.262740104795752E-10
peri 3.300105292361621E-9 -1.420916279694293E-10 5.383618628274455E-8 -4.773102284457399E-10 9.926997544884418E-8 9.415434984323217E-8
i 3.954216345650716E-9 -1.430465680803922E-10 4.112362307520558E-8 -4.262740104795752E-10 9.415434984323217E-8 1.140599950161602E-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 27.1   n/a MPO337078  
rotation period rot_per 0.0193 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 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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