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227969 (2007 HL29)
Classification: Main-belt Asteroid          SPK-ID: 2227969
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05741056732835474 5.028e-08  
a 2.762571742499827 2.9363e-08 au
q 2.603970931477631 1.443e-07 au
i 1.973887107834141 6.5676e-06 deg
node 146.8877292558149 0.00016552 deg
peri 285.9411667538387 0.0001797 deg
M 111.8444244098057 6.6438e-05 deg
tp 2458679.448545230501
(2019-Jul-14.94854523)
0.00030987 TDB
period 1677.137905683336
4.59
2.6739e-05
7.321e-08
d
yr
n .2146514003291345 3.4223e-09 deg/d
Q 2.921172553522024 3.1049e-08 au
  Orbit Determination Parameters
   # obs. used (total)      191  
   data-arc span      6577 days (18.01 yr)  
   first obs. used      2002-02-11  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:23:42  

Additional Information
 Earth MOID = 1.619 au 
 Jupiter MOID = 2.22598 au 
 T_jup = 3.338 
[ 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 17.17   n/a E2021B55  

227969 (2007 HL29)          Discovered 2007-Apr-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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