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17271 (2000 LL2)
Classification: Main-belt Asteroid          SPK-ID: 2017271
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1167635977237532 2.3825e-08  
a 2.677862045850301 1.0636e-08 au
q 2.36518523916893 6.4222e-08 au
i 20.77612820096066 9.9556e-07 deg
node 233.9124821617585 1.4396e-06 deg
peri 250.5864679074431 5.5843e-06 deg
M 13.96872553856775 4.7257e-06 deg
tp 2459138.393792458543
(2020-Oct-15.89379246)
2.0943e-05 TDB
period 1600.592312676874
4.38
9.5362e-06
2.611e-08
d
yr
n .2249167368534503 1.34e-09 deg/d
Q 2.990538852531672 1.1878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2322  
   data-arc span      14704 days (40.26 yr)  
   first obs. used      1980-12-10  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38659  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:59:17  

Additional Information
 Earth MOID = 1.45873 au 
 Jupiter MOID = 2.37494 au 
 T_jup = 3.275 
[ 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 12.72   n/a E2021B10  
diameter diameter 7.283 km 0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.506 h n/a LCDB (Rev. 2020-October); 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.]
geometric albedo albedo 0.333   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17271 (2000 LL2)          Discovered 2000-Jun-04 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2000 LL2 = 1980 XR2 = 1999 DF5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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