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JPL Small-Body Database Browser
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162082 (1998 HL1)
Classification: Apollo [NEO, PHA]          SPK-ID: 2162082
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 137 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871535562067475 1.9523e-08  
a 1.246336705739256 2.4072e-09 au
q 1.013080359029152 2.3586e-08 au
i 20.04778655742155 6.534e-06 deg
node 213.5679604585613 2.8243e-06 deg
peri 148.5053847793692 1.1688e-05 deg
M 251.5282153129037 7.9434e-06 deg
tp 2458753.631941966567
(2019-Sep-27.13194197)
1.0939e-05 TDB
period 508.2197113930406
1.39
1.4724e-06
4.031e-09
d
yr
n .7083550518204669 2.0522e-09 deg/d
Q 1.47959305244936 2.8578e-09 au
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      7900 days (21.63 yr)  
   first obs. used      1998-04-18  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42594  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-07 05:40:04  

Additional Information
 Earth MOID = .0415954 au 
 Jupiter MOID = 3.92842 au 
 T_jup = 5.078 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.9   n/a MPO248248  

162082 (1998 HL1)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

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