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(2011 LD20)
Classification: Mars-crossing Asteroid          SPK-ID: 3568024
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5019654242453715 5.654e-08  
a 2.960351445091555 2.1963e-08 au
q 1.474357376040774 1.7111e-07 au
i 11.66479883902752 7.4375e-06 deg
node 195.0378488137631 1.998e-05 deg
peri 166.0015509900045 2.1557e-05 deg
M 301.5191966633384 4.6979e-06 deg
tp 2459502.720670326439
(2021-Oct-15.22067033)
2.6728e-05 TDB
period 1860.430006256631
5.09
2.0704e-05
5.668e-08
d
yr
n .1935036517306854 2.1534e-09 deg/d
Q 4.446345514142337 3.2987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      637  
   data-arc span      4896 days (13.40 yr)  
   first obs. used      2006-12-21  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38366  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:09:03  

Additional Information
 Earth MOID = .473892 au 
 Jupiter MOID = 1.06425 au 
 T_jup = 3.035 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO434958  
rotation period rot_per 1.1 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; Mommert, M.; Trilling, D.E.; Sicafoose, A.A.; et al. (2017) Astron. J. 154, A162.]

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