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66972 (1999 XE64)
Classification: Main-belt Asteroid          SPK-ID: 2066972
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05580841333308315 3.6605e-08  
a 2.353389221097239 8.6331e-09 au
q 2.222050302712622 8.4613e-08 au
i 5.560040859568484 4.154e-06 deg
node 220.7516308752494 3.1841e-05 deg
peri 305.8063073717773 4.683e-05 deg
M 217.4695533899367 3.5966e-05 deg
tp 2459722.588602069000
(2022-May-23.08860207)
0.00013277 TDB
period 1318.67892941528
3.61
7.2561e-06
1.987e-08
d
yr
n .273000494638698 1.5022e-09 deg/d
Q 2.484728139481856 9.1148e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      10742 days (29.41 yr)  
   first obs. used      1991-09-15  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:26:22  

Additional Information
 Earth MOID = 1.2321 au 
 Jupiter MOID = 2.49368 au 
 T_jup = 3.548 
[ 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 15.69   n/a MPCxxxxx  

66972 (1999 XE64)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XE64 = 2001 HW29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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