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66965 (1999 XL49)
Classification: Main-belt Asteroid          SPK-ID: 2066965
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0741454376808162 7.4299e-08  
a 2.986409765850666 2.3583e-08 au
q 2.764981106667405 2.2818e-07 au
i 9.976363992914044 5.0347e-06 deg
node 251.3853489313653 4.1956e-05 deg
peri 93.87457577221791 5.5506e-05 deg
M 60.51845210112101 3.4579e-05 deg
tp 2458683.610511741631
(2019-Jul-19.11051174)
0.00018239 TDB
period 1885.048473850503
5.16
2.2329e-05
6.113e-08
d
yr
n .1909765212905344 2.2621e-09 deg/d
Q 3.207838425033927 2.5332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      7771 days (21.28 yr)  
   first obs. used      1998-08-27  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56681  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:05:51  

Additional Information
 Earth MOID = 1.78123 au 
 Jupiter MOID = 2.10829 au 
 T_jup = 3.231 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO359208  
diameter diameter 6.211 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66965 (1999 XL49)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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