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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07422981846143935 6.7558e-08  
a 2.987156144153629 2.2127e-08 au
q 2.765420085857132 2.0545e-07 au
i 9.975119128415873 4.7607e-06 deg
node 251.3852255622946 3.8241e-05 deg
peri 94.05267267936603 5.0822e-05 deg
M 98.5215357506401 3.1945e-05 deg
tp 2458684.423615967719
(2019-Jul-19.92361597)
0.00016898 TDB
period 1885.755198963329
5.16
2.0953e-05
5.737e-08
d
yr
n .1909049489551484 2.1212e-09 deg/d
Q 3.208892202450127 2.377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      877  
   data-arc span      8180 days (22.40 yr)  
   first obs. used      1998-08-27  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54302  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:26:18  

Additional Information
 Earth MOID = 1.77995 au 
 Jupiter MOID = 2.10739 au 
 T_jup = 3.230 
[ 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 14.63   n/a MPCxxxxx  
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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