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JPL Small-Body Database Browser
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66985 (1999 XT93)
Classification: Main-belt Asteroid          SPK-ID: 2066985
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05995743002045976 4.6849e-08  
a 3.196320719719853 3.0411e-08 au
q 3.004677543844305 1.5132e-07 au
i 13.21801190087731 6.5707e-06 deg
node 290.8543646862785 2.4087e-05 deg
peri 133.4567494073632 6.2805e-05 deg
M 250.2072806185739 5.783e-05 deg
tp 2459637.068278660532
(2022-Feb-26.56827866)
0.00033628 TDB
period 2087.247511573701
5.71
2.9788e-05
8.156e-08
d
yr
n .1724759512246702 2.4615e-09 deg/d
Q 3.387963895595401 3.2234e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      8311 days (22.75 yr)  
   first obs. used      1997-07-26  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:05:53  

Additional Information
 Earth MOID = 2.03604 au 
 Jupiter MOID = 1.83222 au 
 T_jup = 3.151 
[ 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 13.0   n/a MPO347958  
diameter diameter 13.265 km 1.861 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.076   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

66985 (1999 XT93)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XT93 = 1997 OP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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