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66973 (1999 XM66)
Classification: Main-belt Asteroid          SPK-ID: 2066973
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2052481190026482 3.7073e-08  
a 2.290236683231944 7.2423e-09 au
q 1.820169911927723 8.4235e-08 au
i 2.964945669422823 3.8334e-06 deg
node 247.9446947590567 7.7271e-05 deg
peri 97.3262612520962 7.7797e-05 deg
M 90.59024932237057 9.4091e-06 deg
tp 2458881.935094080547
(2020-Feb-02.43509408)
3.2441e-05 TDB
period 1265.957064792878
3.47
6.0049e-06
1.644e-08
d
yr
n .2843698337106711 1.3489e-09 deg/d
Q 2.760303454536164 8.7288e-09 au
  Orbit Determination Parameters
   # obs. used (total)      705  
   data-arc span      8796 days (24.08 yr)  
   first obs. used      1997-02-16  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54038  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:02:51  

Additional Information
 Earth MOID = .814038 au 
 Jupiter MOID = 2.66372 au 
 T_jup = 3.569 
[ 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 16.23   n/a MPCxxxxx  

66973 (1999 XM66)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XM66 = 2002 PJ68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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