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JPL Small-Body Database Browser
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136816 (1997 HL8)
Classification: Main-belt Asteroid          SPK-ID: 2136816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07753848164306794 5.5821e-08  
a 2.573513773186408 2.1017e-08 au
q 2.373967422726011 1.49e-07 au
i 3.36462510823036 6.8694e-06 deg
node 187.7811902168457 0.00010039 deg
peri 31.13115630243461 0.00011319 deg
M 116.1355873365846 5.7779e-05 deg
tp 2458114.035680121242
(2017-Dec-26.53568012)
0.00023871 TDB
period 1507.954272868994
4.13
1.8473e-05
5.058e-08
d
yr
n .2387340295903492 2.9245e-09 deg/d
Q 2.773060123646805 2.2647e-08 au
  Orbit Determination Parameters
   # obs. used (total)      332  
   data-arc span      9149 days (25.05 yr)  
   first obs. used      1994-10-08  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56615  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:05:13  

Additional Information
 Earth MOID = 1.36716 au 
 Jupiter MOID = 2.19433 au 
 T_jup = 3.422 
[ 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 16.1   n/a MPO417724  

136816 (1997 HL8)          Discovered 1997-Apr-30 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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