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277142 (2005 LG8)
Classification: Apollo [NEO]          SPK-ID: 2277142
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 94 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8271503623007597 3.7445e-08  
a 1.755245651748324 1.5188e-08 au
q .3033935749778648 6.6167e-08 au
i 26.55787260638686 9.5378e-06 deg
node 211.296033371482 9.5357e-06 deg
peri 193.8124850665202 1.0434e-05 deg
M 101.6613824223651 1.4401e-05 deg
tp 2458760.639466156179
(2019-Oct-04.13946616)
3.1664e-05 TDB
period 849.3863660541655
2.33
1.1025e-05
3.018e-08
d
yr
n .4238353879782463 5.5012e-09 deg/d
Q 3.207097728518784 2.7751e-08 au
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      5461 days (14.95 yr)  
   first obs. used      2005-06-07  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52913  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 09:00:42  

Additional Information
 Earth MOID = .309848 au 
 Jupiter MOID = 2.24447 au 
 T_jup = 3.548 
[ 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 16.7   n/a MPO446373  
rotation period rot_per 4.63 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

277142 (2005 LG8)          Discovered 2005-Jun-07 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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