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(2015 HL1)
Classification: Amor [NEO]          SPK-ID: 3716455
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5880420541881535 1.7188e-05  
a 2.701691409093938 0.00011865 au
q 1.112983243107852 2.4431e-06 au
i 12.46149532622611 0.00025117 deg
node 206.7883669904724 9.4686e-05 deg
peri 40.6089877342053 4.5903e-05 deg
M 44.76970226550909 0.026729 deg
tp 2458798.787066666471
(2019-Nov-11.28706667)
0.10714 TDB
period 1622.004443304394
4.44
0.10685
0.0002925
d
yr
n .2219476040809097 1.4621e-05 deg/d
Q 4.290399575080023 0.00018842 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      69 days  
   first obs. used      2015-04-18  
   last obs. used      2015-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .42174  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 07:14:04  

Additional Information
 Earth MOID = .152302 au 
 Jupiter MOID = .920479 au 
 T_jup = 3.064 
[ show covariance matrix ]

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 21.9   n/a MPCxxxxx  

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