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JPL Small-Body Database Browser
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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2051821905943934 6.0703e-08  
a 2.289780431954192 8.4126e-09 au
q 1.819958266945655 1.3735e-07 au
i 2.965240519972005 4.3541e-06 deg
node 247.9446639643075 0.00011686 deg
peri 97.27989131638338 0.00011722 deg
M 33.75681073415748 1.0191e-05 deg
tp 2458881.828045727111
(2020-Feb-02.32804573)
3.5571e-05 TDB
period 1265.578785705932
3.46
6.9746e-06
1.91e-08
d
yr
n .2844548313119789 1.5676e-09 deg/d
Q 2.75960259696273 1.0139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      1997-02-16  
   last obs. used      2018-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:45:39  

Additional Information
 Earth MOID = .815609 au 
 Jupiter MOID = 2.66381 au 
 T_jup = 3.569 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO436250  

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

[ show close-approach data ]
Alternate Designations
 1999 XM66 = 2002 PJ68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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