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216739 (2005 JH128)
Classification: Main-belt Asteroid          SPK-ID: 2216739
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1443242411612876 4.206e-08  
a 2.404107714580329 1.3576e-08 au
q 2.057136693003526 1.0357e-07 au
i 5.662161802588956 4.0237e-06 deg
node 95.45606558977265 5.624e-05 deg
peri 156.1009294469244 5.9112e-05 deg
M 57.3437940455722 2.0422e-05 deg
tp 2458983.623131879359
(2020-May-14.12313188)
7.6309e-05 TDB
period 1361.536567695235
3.73
1.1533e-05
3.158e-08
d
yr
n .2644071474403337 2.2397e-09 deg/d
Q 2.751078736157132 1.5536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      7028 days (19.24 yr)  
   first obs. used      2001-03-21  
   last obs. used      2020-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54518  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:06  

Additional Information
 Earth MOID = 1.04248 au 
 Jupiter MOID = 2.28716 au 
 T_jup = 3.503 
[ 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 16.75   n/a E2021B55  

216739 (2005 JH128)          Discovered 2005-May-12 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

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