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243721 (2000 HL68)
Classification: Main-belt Asteroid          SPK-ID: 2243721
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .204303400894001 7.0112e-08  
a 2.27538352559496 1.1108e-08 au
q 1.810514932977727 1.6122e-07 au
i .4881688072297415 7.9563e-06 deg
node 216.2649626527725 0.00098315 deg
peri 356.2587341843229 0.00098384 deg
M 313.4031405949115 3.2347e-05 deg
tp 2459162.768599043011
(2020-Nov-09.26859904)
0.00011282 TDB
period 1253.661650190629
3.43
9.1803e-06
2.513e-08
d
yr
n .2871588198819507 2.1028e-09 deg/d
Q 2.740252118212192 1.3378e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      9807 days (26.85 yr)  
   first obs. used      1993-03-19  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59208  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:24:09  

Additional Information
 Earth MOID = .804519 au 
 Jupiter MOID = 2.22605 au 
 T_jup = 3.581 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.2   n/a MPO300152  

243721 (2000 HL68)          Discovered 2000-Apr-28 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

Alternate Designations
 2000 HL68 = 1993 FM59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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