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295331 (2008 HL3)
Classification: Main-belt Asteroid          SPK-ID: 2295331
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2051233395282631 5.1851e-08  
a 3.021908652584037 3.4519e-08 au
q 2.402044658016646 1.5334e-07 au
i 6.162446851333407 6.5445e-06 deg
node 30.02723863313384 5.7944e-05 deg
peri 206.5452149111966 6.0867e-05 deg
M 133.8211182090716 2.0492e-05 deg
tp 2458487.248688496280
(2019-Jan-03.74868850)
0.00010297 TDB
period 1918.758978984028
5.25
3.2877e-05
9.001e-08
d
yr
n .1876212718444804 3.2148e-09 deg/d
Q 3.641772647151429 4.16e-08 au
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      6902 days (18.90 yr)  
   first obs. used      2002-02-12  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50586  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:14:04  

Additional Information
 Earth MOID = 1.39122 au 
 Jupiter MOID = 1.38005 au 
 T_jup = 3.205 
[ 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 15.88   n/a MPCxxxxx  

295331 (2008 HL3)          Discovered 2008-Apr-28 by La Sagra at La Sagra
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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