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(2016 JH18)
Classification: Aten [NEO]          SPK-ID: 3753079
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .259508061449354 0.00069257  
a .8967377495900468 8.5773e-05 au
q .6640270745654775 0.00068455 au
i 4.339073873001032 0.01321 deg
node 224.8814635731057 0.0026869 deg
peri 147.698097610518 0.0073521 deg
M 30.95164393779483 0.51692 deg
tp 2459173.832774983862
(2020-Nov-20.33277498)
0.44154 TDB
period 310.167725665995
0.85
0.044501
0.0001218
d
yr
n 1.160662345597063 0.00016653 deg/d
Q 1.129448424614616 0.00010803 au
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      6 days  
   first obs. used      2016-05-08  
   last obs. used      2016-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .63083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 17:06:16  

Additional Information
 Earth MOID = .019411 au 
 Jupiter MOID = 4.29096 au 
 T_jup = 6.602 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457517.5 (2016-May-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .259848197606412 0.00065211  
q .6628984894348945 0.00069427 au
tp 2457623.917062193559
(2016-Aug-23.41706219)
0.084861 TDB
node 225.0164147416625 0.0016857 deg
peri 147.7021079091185 0.0071184 deg
i 4.363383836675306 0.013619 deg
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      6 days  
   first obs. used      2016-05-08  
   last obs. used      2016-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .63083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 17:06:16  

Additional Information
 Jupiter MOID = 4.29096 au 
 T_jup = 6.602 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.252451681182673E-7 -4.527332081907203E-7 -5.53354660091091E-5 1.097934287593364E-6 -4.578687754403775E-6 8.880615346551301E-6
q -4.527332081907203E-7 4.820051494631363E-7 5.890999957070167E-5 -1.169076266485628E-6 4.871550373596242E-6 -9.454919608719054E-6
tp -5.53354660091091E-5 5.890999957070167E-5 .007201393062133776 -.0001428108515165219 .0005968571870058 -.001155508468635921
node 1.097934287593364E-6 -1.169076266485628E-6 -.0001428108515165219 2.841568660868747E-6 -1.174797202566568E-5 2.293813416277814E-5
peri -4.578687754403775E-6 4.871550373596242E-6 .0005968571870058 -1.174797202566568E-5 5.067156080861095E-5 -9.550579823701734E-5
i 8.880615346551301E-6 -9.454919608719054E-6 -.001155508468635921 2.293813416277814E-5 -9.550579823701734E-5 .0001854726539944131

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 26.1   n/a MPO378539  

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