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186546 (2002 XL6)
Classification: Main-belt Asteroid          SPK-ID: 2186546
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871213175374704 5.7679e-08  
a 2.390271318449423 1.4524e-08 au
q 1.94300060006914 1.4667e-07 au
i 2.379159264503812 4.053e-06 deg
node 91.89292203638078 0.00011232 deg
peri 300.0228335692526 0.00011318 deg
M 334.5365434393104 1.5907e-05 deg
tp 2459295.973772538549
(2021-Mar-22.47377254)
6.0187e-05 TDB
period 1349.799389252553
3.70
1.2302e-05
3.368e-08
d
yr
n .2667062993704188 2.4308e-09 deg/d
Q 2.837542036829705 1.7241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      7133 days (19.53 yr)  
   first obs. used      2001-05-24  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50804  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:51:42  

Additional Information
 Earth MOID = .949066 au 
 Jupiter MOID = 2.59906 au 
 T_jup = 3.507 
[ 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  
rotation period rot_per 9.870 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.]

186546 (2002 XL6)          Discovered 2002-Dec-01 by NEAT at Haleakala
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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