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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05558381539252542 4.041e-08  
a 2.353857807031424 1.0911e-08 au
q 2.223021409225134 9.4635e-08 au
i 5.559582587682943 5.1827e-06 deg
node 220.7573853196733 4.2682e-05 deg
peri 305.8891583139049 6.2039e-05 deg
M 162.774750557559 4.4415e-05 deg
tp 2458404.078485877041
(2018-Oct-12.57848588)
0.00016275 TDB
period 1319.072794452483
3.61
9.1719e-06
2.511e-08
d
yr
n .2729189787811732 1.8977e-09 deg/d
Q 2.484694204837714 1.1518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      10100 days (27.65 yr)  
   first obs. used      1991-09-15  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:29:17  

Additional Information
 Earth MOID = 1.23344 au 
 Jupiter MOID = 2.49465 au 
 T_jup = 3.547 
[ 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 15.6   n/a MPO337772  

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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