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JPL Small-Body Database Browser
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66949 (1999 XO7)
Classification: Main-belt Asteroid          SPK-ID: 2066949
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569948832331853 4.4708e-08  
a 2.663088640447573 1.4584e-08 au
q 2.244997350300884 1.19e-07 au
i 12.34534406764125 5.7785e-06 deg
node 3.393271380680806 2.2077e-05 deg
peri 69.32417902326904 2.8922e-05 deg
M 273.5724148298085 1.802e-05 deg
tp 2459381.589285024070
(2021-Jun-16.08928502)
8.0279e-05 TDB
period 1587.365218390739
4.35
1.3039e-05
3.57e-08
d
yr
n .2267909084999139 1.863e-09 deg/d
Q 3.081179930594262 1.6873e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1181  
   data-arc span      7173 days (19.64 yr)  
   first obs. used      1998-11-06  
   last obs. used      2018-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46731  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:58:29  

Additional Information
 Earth MOID = 1.29235 au 
 Jupiter MOID = 2.31862 au 
 T_jup = 3.334 
[ 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 13.2   n/a MPO436250  
diameter diameter 6.548 km 0.306 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66949 (1999 XO7)          Discovered 1999-Dec-04 by Juels, C. W. at Fountain Hills
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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